annotate mercurial/revlog.py @ 25660:328739ea70c3

global: mass rewrite to use modern exception syntax Python 2.6 introduced the "except type as instance" syntax, replacing the "except type, instance" syntax that came before. Python 3 dropped support for the latter syntax. Since we no longer support Python 2.4 or 2.5, we have no need to continue supporting the "except type, instance". This patch mass rewrites the exception syntax to be Python 2.6+ and Python 3 compatible. This patch was produced by running `2to3 -f except -w -n .`.
author Gregory Szorc <gregory.szorc@gmail.com>
date Tue, 23 Jun 2015 22:20:08 -0700
parents 0bda5bfaf0b1
children 00e3f909907f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 # revlog.py - storage back-end for mercurial
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2 #
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3 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 """Storage back-end for Mercurial.
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9
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10 This provides efficient delta storage with O(1) retrieve and append
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11 and O(changes) merge between branches.
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12 """
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13
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14 # import stuff from node for others to import from revlog
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15 import collections
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16 from node import bin, hex, nullid, nullrev
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17 from i18n import _
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18 import ancestor, mdiff, parsers, error, util, templatefilters
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19 import struct, zlib, errno
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20
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21 _pack = struct.pack
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22 _unpack = struct.unpack
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23 _compress = zlib.compress
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24 _decompress = zlib.decompress
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25 _sha = util.sha1
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26
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27 # revlog header flags
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28 REVLOGV0 = 0
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29 REVLOGNG = 1
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30 REVLOGNGINLINEDATA = (1 << 16)
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31 REVLOGGENERALDELTA = (1 << 17)
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32 REVLOG_DEFAULT_FLAGS = REVLOGNGINLINEDATA
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33 REVLOG_DEFAULT_FORMAT = REVLOGNG
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34 REVLOG_DEFAULT_VERSION = REVLOG_DEFAULT_FORMAT | REVLOG_DEFAULT_FLAGS
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35 REVLOGNG_FLAGS = REVLOGNGINLINEDATA | REVLOGGENERALDELTA
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36
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37 # revlog index flags
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38 REVIDX_ISCENSORED = (1 << 15) # revision has censor metadata, must be verified
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39 REVIDX_DEFAULT_FLAGS = 0
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40 REVIDX_KNOWN_FLAGS = REVIDX_ISCENSORED
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41
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42 # max size of revlog with inline data
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43 _maxinline = 131072
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44 _chunksize = 1048576
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45
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46 RevlogError = error.RevlogError
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47 LookupError = error.LookupError
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48 CensoredNodeError = error.CensoredNodeError
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49
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50 def getoffset(q):
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51 return int(q >> 16)
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52
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53 def gettype(q):
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54 return int(q & 0xFFFF)
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55
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56 def offset_type(offset, type):
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57 return long(long(offset) << 16 | type)
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58
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59 _nullhash = _sha(nullid)
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60
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61 def hash(text, p1, p2):
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62 """generate a hash from the given text and its parent hashes
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63
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64 This hash combines both the current file contents and its history
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65 in a manner that makes it easy to distinguish nodes with the same
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66 content in the revision graph.
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67 """
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68 # As of now, if one of the parent node is null, p2 is null
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69 if p2 == nullid:
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70 # deep copy of a hash is faster than creating one
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71 s = _nullhash.copy()
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72 s.update(p1)
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73 else:
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74 # none of the parent nodes are nullid
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75 l = [p1, p2]
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76 l.sort()
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77 s = _sha(l[0])
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78 s.update(l[1])
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79 s.update(text)
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80 return s.digest()
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81
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82 def decompress(bin):
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83 """ decompress the given input """
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84 if not bin:
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85 return bin
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86 t = bin[0]
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87 if t == '\0':
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88 return bin
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89 if t == 'x':
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90 try:
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91 return _decompress(bin)
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92 except zlib.error as e:
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93 raise RevlogError(_("revlog decompress error: %s") % str(e))
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94 if t == 'u':
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95 return bin[1:]
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96 raise RevlogError(_("unknown compression type %r") % t)
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97
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98 # index v0:
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99 # 4 bytes: offset
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100 # 4 bytes: compressed length
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101 # 4 bytes: base rev
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102 # 4 bytes: link rev
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103 # 32 bytes: parent 1 nodeid
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104 # 32 bytes: parent 2 nodeid
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105 # 32 bytes: nodeid
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106 indexformatv0 = ">4l20s20s20s"
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107 v0shaoffset = 56
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108
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109 class revlogoldio(object):
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110 def __init__(self):
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111 self.size = struct.calcsize(indexformatv0)
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112
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113 def parseindex(self, data, inline):
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114 s = self.size
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115 index = []
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116 nodemap = {nullid: nullrev}
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117 n = off = 0
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118 l = len(data)
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119 while off + s <= l:
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120 cur = data[off:off + s]
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121 off += s
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122 e = _unpack(indexformatv0, cur)
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123 # transform to revlogv1 format
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124 e2 = (offset_type(e[0], 0), e[1], -1, e[2], e[3],
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125 nodemap.get(e[4], nullrev), nodemap.get(e[5], nullrev), e[6])
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126 index.append(e2)
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127 nodemap[e[6]] = n
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128 n += 1
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129
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130 # add the magic null revision at -1
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131 index.append((0, 0, 0, -1, -1, -1, -1, nullid))
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132
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133 return index, nodemap, None
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134
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135 def packentry(self, entry, node, version, rev):
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136 if gettype(entry[0]):
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diff changeset
137 raise RevlogError(_("index entry flags need RevlogNG"))
4986
58cc017ec7e0 revlog: abstract out index entry packing
Matt Mackall <mpm@selenic.com>
parents: 4985
diff changeset
138 e2 = (getoffset(entry[0]), entry[1], entry[3], entry[4],
58cc017ec7e0 revlog: abstract out index entry packing
Matt Mackall <mpm@selenic.com>
parents: 4985
diff changeset
139 node(entry[5]), node(entry[6]), entry[7])
5007
3addf4531643 revlog: localize some fastpath functions
Matt Mackall <mpm@selenic.com>
parents: 5006
diff changeset
140 return _pack(indexformatv0, *e2)
4986
58cc017ec7e0 revlog: abstract out index entry packing
Matt Mackall <mpm@selenic.com>
parents: 4985
diff changeset
141
4987
8d30004ada40 revlog: some basic code reordering
Matt Mackall <mpm@selenic.com>
parents: 4986
diff changeset
142 # index ng:
11323
d65b74106113 revlog: fix inconsistent comment formatting
Martin Geisler <mg@aragost.com>
parents: 11155
diff changeset
143 # 6 bytes: offset
d65b74106113 revlog: fix inconsistent comment formatting
Martin Geisler <mg@aragost.com>
parents: 11155
diff changeset
144 # 2 bytes: flags
d65b74106113 revlog: fix inconsistent comment formatting
Martin Geisler <mg@aragost.com>
parents: 11155
diff changeset
145 # 4 bytes: compressed length
d65b74106113 revlog: fix inconsistent comment formatting
Martin Geisler <mg@aragost.com>
parents: 11155
diff changeset
146 # 4 bytes: uncompressed length
d65b74106113 revlog: fix inconsistent comment formatting
Martin Geisler <mg@aragost.com>
parents: 11155
diff changeset
147 # 4 bytes: base rev
d65b74106113 revlog: fix inconsistent comment formatting
Martin Geisler <mg@aragost.com>
parents: 11155
diff changeset
148 # 4 bytes: link rev
d65b74106113 revlog: fix inconsistent comment formatting
Martin Geisler <mg@aragost.com>
parents: 11155
diff changeset
149 # 4 bytes: parent 1 rev
d65b74106113 revlog: fix inconsistent comment formatting
Martin Geisler <mg@aragost.com>
parents: 11155
diff changeset
150 # 4 bytes: parent 2 rev
4987
8d30004ada40 revlog: some basic code reordering
Matt Mackall <mpm@selenic.com>
parents: 4986
diff changeset
151 # 32 bytes: nodeid
8d30004ada40 revlog: some basic code reordering
Matt Mackall <mpm@selenic.com>
parents: 4986
diff changeset
152 indexformatng = ">Qiiiiii20s12x"
8d30004ada40 revlog: some basic code reordering
Matt Mackall <mpm@selenic.com>
parents: 4986
diff changeset
153 ngshaoffset = 32
8d30004ada40 revlog: some basic code reordering
Matt Mackall <mpm@selenic.com>
parents: 4986
diff changeset
154 versionformat = ">I"
8d30004ada40 revlog: some basic code reordering
Matt Mackall <mpm@selenic.com>
parents: 4986
diff changeset
155
25410
eee88912db0a revlog: raise an exception earlier if an entry is too large (issue4675)
Jordi Guti?rrez Hermoso <jordigh@octave.org>
parents: 25361
diff changeset
156 # corresponds to uncompressed length of indexformatng (2 gigs, 4-byte
eee88912db0a revlog: raise an exception earlier if an entry is too large (issue4675)
Jordi Guti?rrez Hermoso <jordigh@octave.org>
parents: 25361
diff changeset
157 # signed integer)
eee88912db0a revlog: raise an exception earlier if an entry is too large (issue4675)
Jordi Guti?rrez Hermoso <jordigh@octave.org>
parents: 25361
diff changeset
158 _maxentrysize = 0x7fffffff
eee88912db0a revlog: raise an exception earlier if an entry is too large (issue4675)
Jordi Guti?rrez Hermoso <jordigh@octave.org>
parents: 25361
diff changeset
159
4972
8d0cf46e0dc6 revlog: add revlogio interface
Matt Mackall <mpm@selenic.com>
parents: 4971
diff changeset
160 class revlogio(object):
8d0cf46e0dc6 revlog: add revlogio interface
Matt Mackall <mpm@selenic.com>
parents: 4971
diff changeset
161 def __init__(self):
4977
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents: 4976
diff changeset
162 self.size = struct.calcsize(indexformatng)
4972
8d0cf46e0dc6 revlog: add revlogio interface
Matt Mackall <mpm@selenic.com>
parents: 4971
diff changeset
163
13264
8439526fb407 revlog/parseindex: no need to pass the file around
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13259
diff changeset
164 def parseindex(self, data, inline):
7109
528b7fc1216c use the new parseindex implementation C in parsers
Bernhard Leiner <bleiner@gmail.com>
parents: 7089
diff changeset
165 # call the C implementation to parse the index data
13254
5ef5eb1f3515 revlog: only build the nodemap on demand
Matt Mackall <mpm@selenic.com>
parents: 13253
diff changeset
166 index, cache = parsers.parse_index2(data, inline)
16414
e8d37b78acfb parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents: 16375
diff changeset
167 return index, getattr(index, 'nodemap', None), cache
4972
8d0cf46e0dc6 revlog: add revlogio interface
Matt Mackall <mpm@selenic.com>
parents: 4971
diff changeset
168
5338
f87685355c9c revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5325
diff changeset
169 def packentry(self, entry, node, version, rev):
5007
3addf4531643 revlog: localize some fastpath functions
Matt Mackall <mpm@selenic.com>
parents: 5006
diff changeset
170 p = _pack(indexformatng, *entry)
5338
f87685355c9c revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5325
diff changeset
171 if rev == 0:
5007
3addf4531643 revlog: localize some fastpath functions
Matt Mackall <mpm@selenic.com>
parents: 5006
diff changeset
172 p = _pack(versionformat, version) + p[4:]
4986
58cc017ec7e0 revlog: abstract out index entry packing
Matt Mackall <mpm@selenic.com>
parents: 4985
diff changeset
173 return p
58cc017ec7e0 revlog: abstract out index entry packing
Matt Mackall <mpm@selenic.com>
parents: 4985
diff changeset
174
1559
59b3639df0a9 Convert all classes to new-style classes by deriving them from object.
Eric Hopper <hopper@omnifarious.org>
parents: 1551
diff changeset
175 class revlog(object):
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
176 """
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
177 the underlying revision storage object
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
178
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
179 A revlog consists of two parts, an index and the revision data.
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
180
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
181 The index is a file with a fixed record size containing
6912
b92baef99ebf Fixed docstring typos
Martin Geisler <mg@daimi.au.dk>
parents: 6891
diff changeset
182 information on each revision, including its nodeid (hash), the
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
183 nodeids of its parents, the position and offset of its data within
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
184 the data file, and the revision it's based on. Finally, each entry
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
185 contains a linkrev entry that can serve as a pointer to external
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
186 data.
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
187
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
188 The revision data itself is a linear collection of data chunks.
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
189 Each chunk represents a revision and is usually represented as a
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
190 delta against the previous chunk. To bound lookup time, runs of
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
191 deltas are limited to about 2 times the length of the original
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
192 version data. This makes retrieval of a version proportional to
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
193 its size, or O(1) relative to the number of revisions.
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
194
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
195 Both pieces of the revlog are written to in an append-only
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
196 fashion, which means we never need to rewrite a file to insert or
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
197 remove data, and can use some simple techniques to avoid the need
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
198 for locking while reading.
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
199 """
14251
258fbccf22f5 revlog: remove the last bits of punched/shallow
Sune Foldager <cryo@cyanite.org>
parents: 14219
diff changeset
200 def __init__(self, opener, indexfile):
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
201 """
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
202 create a revlog object
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
203
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
204 opener is a function that abstracts the file opening operation
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
205 and can be used to implement COW semantics or the like.
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
206 """
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
207 self.indexfile = indexfile
4257
1b5c38e9d7aa revlog: don't pass datafile as an argument
Matt Mackall <mpm@selenic.com>
parents: 4224
diff changeset
208 self.datafile = indexfile[:-2] + ".d"
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
209 self.opener = opener
4984
b4066fcbd6ba revlog: mark cache private
Matt Mackall <mpm@selenic.com>
parents: 4983
diff changeset
210 self._cache = None
19764
e92650e39f1c generaldelta: initialize basecache properly
Wojciech Lopata <lopek@fb.com>
parents: 19471
diff changeset
211 self._basecache = None
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
212 self._chunkcache = (0, '')
20180
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
213 self._chunkcachesize = 65536
23255
76effa770ff9 revlog: add config variable for limiting delta-chain length
Mateusz Kwapich <mitrandir@fb.com>
parents: 23254
diff changeset
214 self._maxchainlen = None
4985
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
215 self.index = []
13258
c2661863f16f revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents: 13254
diff changeset
216 self._pcache = {}
13275
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
217 self._nodecache = {nullid: nullrev}
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
218 self._nodepos = None
4985
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
219
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
220 v = REVLOG_DEFAULT_VERSION
14960
497819817307 revlog: use getattr instead of hasattr
Augie Fackler <durin42@gmail.com>
parents: 14549
diff changeset
221 opts = getattr(opener, 'options', None)
497819817307 revlog: use getattr instead of hasattr
Augie Fackler <durin42@gmail.com>
parents: 14549
diff changeset
222 if opts is not None:
497819817307 revlog: use getattr instead of hasattr
Augie Fackler <durin42@gmail.com>
parents: 14549
diff changeset
223 if 'revlogv1' in opts:
497819817307 revlog: use getattr instead of hasattr
Augie Fackler <durin42@gmail.com>
parents: 14549
diff changeset
224 if 'generaldelta' in opts:
14333
31a5973fcf96 revlog: get rid of defversion
Sune Foldager <cryo@cyanite.org>
parents: 14325
diff changeset
225 v |= REVLOGGENERALDELTA
31a5973fcf96 revlog: get rid of defversion
Sune Foldager <cryo@cyanite.org>
parents: 14325
diff changeset
226 else:
31a5973fcf96 revlog: get rid of defversion
Sune Foldager <cryo@cyanite.org>
parents: 14325
diff changeset
227 v = 0
20180
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
228 if 'chunkcachesize' in opts:
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
229 self._chunkcachesize = opts['chunkcachesize']
23255
76effa770ff9 revlog: add config variable for limiting delta-chain length
Mateusz Kwapich <mitrandir@fb.com>
parents: 23254
diff changeset
230 if 'maxchainlen' in opts:
76effa770ff9 revlog: add config variable for limiting delta-chain length
Mateusz Kwapich <mitrandir@fb.com>
parents: 23254
diff changeset
231 self._maxchainlen = opts['maxchainlen']
20180
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
232
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
233 if self._chunkcachesize <= 0:
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
234 raise RevlogError(_('revlog chunk cache size %r is not greater '
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
235 'than 0') % self._chunkcachesize)
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
236 elif self._chunkcachesize & (self._chunkcachesize - 1):
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
237 raise RevlogError(_('revlog chunk cache size %r is not a power '
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
238 'of 2') % self._chunkcachesize)
11928
b69899dbad40 revlog: parentdelta flags for revlog index
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11759
diff changeset
239
8314
57a41c08feab revlog: preread revlog .i file
Matt Mackall <mpm@selenic.com>
parents: 8312
diff changeset
240 i = ''
14334
85c82ebc96a3 changelog: don't use generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14333
diff changeset
241 self._initempty = True
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
242 try:
1784
2e0a288ca93e revalidate revlog data after locking the repo (issue132)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1749
diff changeset
243 f = self.opener(self.indexfile)
13253
61c9bc3da402 revlog: remove lazy index
Matt Mackall <mpm@selenic.com>
parents: 13239
diff changeset
244 i = f.read()
13400
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13284
diff changeset
245 f.close()
4918
e017d3a82e1d revlog: raise offset/type helpers to global scope
Matt Mackall <mpm@selenic.com>
parents: 4746
diff changeset
246 if len(i) > 0:
8314
57a41c08feab revlog: preread revlog .i file
Matt Mackall <mpm@selenic.com>
parents: 8312
diff changeset
247 v = struct.unpack(versionformat, i[:4])[0]
14334
85c82ebc96a3 changelog: don't use generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14333
diff changeset
248 self._initempty = False
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25459
diff changeset
249 except IOError as inst:
1322
b3d44e9b3092 Make revlog constructor more discerning in its treatment of errors.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1232
diff changeset
250 if inst.errno != errno.ENOENT:
b3d44e9b3092 Make revlog constructor more discerning in its treatment of errors.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1232
diff changeset
251 raise
4985
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
252
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
253 self.version = v
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
254 self._inline = v & REVLOGNGINLINEDATA
14253
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
255 self._generaldelta = v & REVLOGGENERALDELTA
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
256 flags = v & ~0xFFFF
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
257 fmt = v & 0xFFFF
4985
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
258 if fmt == REVLOGV0 and flags:
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
259 raise RevlogError(_("index %s unknown flags %#04x for format v0")
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
260 % (self.indexfile, flags >> 16))
11746
46ac30b17978 revlog: add shallow header flag
Vishakh H <vsh426@gmail.com>
parents: 11745
diff changeset
261 elif fmt == REVLOGNG and flags & ~REVLOGNG_FLAGS:
4985
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
262 raise RevlogError(_("index %s unknown flags %#04x for revlogng")
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
263 % (self.indexfile, flags >> 16))
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
264 elif fmt > REVLOGNG:
3743
3a099154b110 Make revlog error slightly less scary
Matt Mackall <mpm@selenic.com>
parents: 3683
diff changeset
265 raise RevlogError(_("index %s unknown format %d")
3680
69cf255a55a1 Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3679
diff changeset
266 % (self.indexfile, fmt))
4985
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
267
4972
8d0cf46e0dc6 revlog: add revlogio interface
Matt Mackall <mpm@selenic.com>
parents: 4971
diff changeset
268 self._io = revlogio()
4971
3e6dae278c99 revlog: regroup parsing code
Matt Mackall <mpm@selenic.com>
parents: 4920
diff changeset
269 if self.version == REVLOGV0:
4972
8d0cf46e0dc6 revlog: add revlogio interface
Matt Mackall <mpm@selenic.com>
parents: 4971
diff changeset
270 self._io = revlogoldio()
13265
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
271 try:
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
272 d = self._io.parseindex(i, self._inline)
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
273 except (ValueError, IndexError):
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
274 raise RevlogError(_("index %s is corrupted") % (self.indexfile))
13268
fff12b3d953a revlog: explicit test and explicit variable names
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13267
diff changeset
275 self.index, nodemap, self._chunkcache = d
fff12b3d953a revlog: explicit test and explicit variable names
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13267
diff changeset
276 if nodemap is not None:
13275
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
277 self.nodemap = self._nodecache = nodemap
13265
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
278 if not self._chunkcache:
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
279 self._chunkclear()
23306
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
280 # revnum -> (chain-length, sum-delta-length)
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
281 self._chaininfocache = {}
116
e484cd5ec282 Only use lazy indexing for big indices and avoid the overhead of the
mpm@selenic.com
parents: 115
diff changeset
282
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
283 def tip(self):
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
284 return self.node(len(self.index) - 2)
24030
828dc8db5515 revlog: add __contains__ for fast membership test
Yuya Nishihara <yuya@tcha.org>
parents: 23857
diff changeset
285 def __contains__(self, rev):
828dc8db5515 revlog: add __contains__ for fast membership test
Yuya Nishihara <yuya@tcha.org>
parents: 23857
diff changeset
286 return 0 <= rev < len(self)
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
287 def __len__(self):
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
288 return len(self.index) - 1
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
289 def __iter__(self):
17951
6f79c32c0bdf commit: increase perf by avoiding unnecessary filteredrevs check
Durham Goode <durham@fb.com>
parents: 17674
diff changeset
290 return iter(xrange(len(self)))
17672
474047947b8f clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17537
diff changeset
291 def revs(self, start=0, stop=None):
474047947b8f clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17537
diff changeset
292 """iterate over all rev in this revlog (from start to stop)"""
17975
c56b5b65430d revlog: allow reverse iteration with revlog.revs
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17972
diff changeset
293 step = 1
c56b5b65430d revlog: allow reverse iteration with revlog.revs
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17972
diff changeset
294 if stop is not None:
c56b5b65430d revlog: allow reverse iteration with revlog.revs
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17972
diff changeset
295 if start > stop:
c56b5b65430d revlog: allow reverse iteration with revlog.revs
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17972
diff changeset
296 step = -1
c56b5b65430d revlog: allow reverse iteration with revlog.revs
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17972
diff changeset
297 stop += step
17672
474047947b8f clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17537
diff changeset
298 else:
17975
c56b5b65430d revlog: allow reverse iteration with revlog.revs
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17972
diff changeset
299 stop = len(self)
c56b5b65430d revlog: allow reverse iteration with revlog.revs
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17972
diff changeset
300 return xrange(start, stop, step)
13275
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
301
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
302 @util.propertycache
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
303 def nodemap(self):
14064
e4bfb9c337f3 remove unused imports and variables
Alexander Solovyov <alexander@solovyov.net>
parents: 13831
diff changeset
304 self.rev(self.node(0))
13275
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
305 return self._nodecache
13259
3b616dfa4b17 revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents: 13258
diff changeset
306
16374
29c2ff719715 revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents: 15890
diff changeset
307 def hasnode(self, node):
29c2ff719715 revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents: 15890
diff changeset
308 try:
29c2ff719715 revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents: 15890
diff changeset
309 self.rev(node)
29c2ff719715 revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents: 15890
diff changeset
310 return True
29c2ff719715 revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents: 15890
diff changeset
311 except KeyError:
29c2ff719715 revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents: 15890
diff changeset
312 return False
29c2ff719715 revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents: 15890
diff changeset
313
16414
e8d37b78acfb parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents: 16375
diff changeset
314 def clearcaches(self):
e8d37b78acfb parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents: 16375
diff changeset
315 try:
e8d37b78acfb parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents: 16375
diff changeset
316 self._nodecache.clearcaches()
e8d37b78acfb parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents: 16375
diff changeset
317 except AttributeError:
e8d37b78acfb parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents: 16375
diff changeset
318 self._nodecache = {nullid: nullrev}
e8d37b78acfb parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents: 16375
diff changeset
319 self._nodepos = None
e8d37b78acfb parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents: 16375
diff changeset
320
13259
3b616dfa4b17 revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents: 13258
diff changeset
321 def rev(self, node):
13275
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
322 try:
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
323 return self._nodecache[node]
22282
4092d12ba18a repoview: fix 0L with pack/unpack for 2.4
Matt Mackall <mpm@selenic.com>
parents: 21752
diff changeset
324 except TypeError:
4092d12ba18a repoview: fix 0L with pack/unpack for 2.4
Matt Mackall <mpm@selenic.com>
parents: 21752
diff changeset
325 raise
16414
e8d37b78acfb parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents: 16375
diff changeset
326 except RevlogError:
e8d37b78acfb parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents: 16375
diff changeset
327 # parsers.c radix tree lookup failed
e8d37b78acfb parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents: 16375
diff changeset
328 raise LookupError(node, self.indexfile, _('no node'))
13275
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
329 except KeyError:
16414
e8d37b78acfb parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents: 16375
diff changeset
330 # pure python cache lookup failed
13275
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
331 n = self._nodecache
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
332 i = self.index
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
333 p = self._nodepos
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
334 if p is None:
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
335 p = len(i) - 2
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
336 for r in xrange(p, -1, -1):
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
337 v = i[r][7]
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
338 n[v] = r
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
339 if v == node:
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
340 self._nodepos = r - 1
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
341 return r
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
342 raise LookupError(node, self.indexfile, _('no node'))
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
343
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
344 def node(self, rev):
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
345 return self.index[rev][7]
7361
9fe97eea5510 linkrev: take a revision number rather than a hash
Matt Mackall <mpm@selenic.com>
parents: 7233
diff changeset
346 def linkrev(self, rev):
9fe97eea5510 linkrev: take a revision number rather than a hash
Matt Mackall <mpm@selenic.com>
parents: 7233
diff changeset
347 return self.index[rev][4]
2
ecf3fd948051 Handle nullid better for ancestor
mpm@selenic.com
parents: 0
diff changeset
348 def parents(self, node):
7363
9d28ff207030 revlog: speed up parents()
Matt Mackall <mpm@selenic.com>
parents: 7362
diff changeset
349 i = self.index
9d28ff207030 revlog: speed up parents()
Matt Mackall <mpm@selenic.com>
parents: 7362
diff changeset
350 d = i[self.rev(node)]
9d28ff207030 revlog: speed up parents()
Matt Mackall <mpm@selenic.com>
parents: 7362
diff changeset
351 return i[d[5]][7], i[d[6]][7] # map revisions to nodes inline
2489
568e58eed096 Add revlog.parentrevs function.
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 2354
diff changeset
352 def parentrevs(self, rev):
4979
06abdaf78788 revlog: add a magic null revision to our index
Matt Mackall <mpm@selenic.com>
parents: 4978
diff changeset
353 return self.index[rev][5:7]
2072
74d3f5336b66 Implement revlogng.
mason@suse.com
parents: 2002
diff changeset
354 def start(self, rev):
5006
c2febf5420e9 revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents: 5005
diff changeset
355 return int(self.index[rev][0] >> 16)
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
356 def end(self, rev):
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
357 return self.start(rev) + self.length(rev)
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
358 def length(self, rev):
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
359 return self.index[rev][1]
14252
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
360 def chainbase(self, rev):
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
361 index = self.index
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
362 base = index[rev][3]
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
363 while base != rev:
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
364 rev = base
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
365 base = index[rev][3]
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
366 return base
23254
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
367 def chainlen(self, rev):
23286
40e0067899d4 revlog: compute length of compressed deltas along with chain length
Siddharth Agarwal <sid0@fb.com>
parents: 23285
diff changeset
368 return self._chaininfo(rev)[0]
23306
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
369
23286
40e0067899d4 revlog: compute length of compressed deltas along with chain length
Siddharth Agarwal <sid0@fb.com>
parents: 23285
diff changeset
370 def _chaininfo(self, rev):
23306
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
371 chaininfocache = self._chaininfocache
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
372 if rev in chaininfocache:
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
373 return chaininfocache[rev]
23254
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
374 index = self.index
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
375 generaldelta = self._generaldelta
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
376 iterrev = rev
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
377 e = index[iterrev]
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
378 clen = 0
23286
40e0067899d4 revlog: compute length of compressed deltas along with chain length
Siddharth Agarwal <sid0@fb.com>
parents: 23285
diff changeset
379 compresseddeltalen = 0
23254
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
380 while iterrev != e[3]:
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
381 clen += 1
23286
40e0067899d4 revlog: compute length of compressed deltas along with chain length
Siddharth Agarwal <sid0@fb.com>
parents: 23285
diff changeset
382 compresseddeltalen += e[1]
23254
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
383 if generaldelta:
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
384 iterrev = e[3]
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
385 else:
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
386 iterrev -= 1
23306
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
387 if iterrev in chaininfocache:
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
388 t = chaininfocache[iterrev]
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
389 clen += t[0]
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
390 compresseddeltalen += t[1]
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
391 break
23254
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
392 e = index[iterrev]
23306
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
393 else:
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
394 # Add text length of base since decompressing that also takes
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
395 # work. For cache hits the length is already included.
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
396 compresseddeltalen += e[1]
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
397 r = (clen, compresseddeltalen)
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
398 chaininfocache[rev] = r
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
399 return r
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
400
11693
ff33f937a7da revlog: add a flags method that returns revision flags
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11670
diff changeset
401 def flags(self, rev):
ff33f937a7da revlog: add a flags method that returns revision flags
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11670
diff changeset
402 return self.index[rev][0] & 0xFFFF
12024
56a7721ee3ec revlog: add rawsize(), identical to size() but not subclassed by filelog
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12023
diff changeset
403 def rawsize(self, rev):
2078
441ea218414e Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents: 2077
diff changeset
404 """return the length of the uncompressed text for a given revision"""
4977
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents: 4976
diff changeset
405 l = self.index[rev][2]
2078
441ea218414e Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents: 2077
diff changeset
406 if l >= 0:
441ea218414e Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents: 2077
diff changeset
407 return l
441ea218414e Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents: 2077
diff changeset
408
441ea218414e Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents: 2077
diff changeset
409 t = self.revision(self.node(rev))
441ea218414e Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents: 2077
diff changeset
410 return len(t)
12024
56a7721ee3ec revlog: add rawsize(), identical to size() but not subclassed by filelog
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12023
diff changeset
411 size = rawsize
2078
441ea218414e Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents: 2077
diff changeset
412
18081
f88c60e740a1 revlog.ancestors: add support for including revs
Siddharth Agarwal <sid0@fb.com>
parents: 17975
diff changeset
413 def ancestors(self, revs, stoprev=0, inclusive=False):
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
414 """Generate the ancestors of 'revs' in reverse topological order.
16868
eb88ed4269c5 revlog: add optional stoprev arg to revlog.ancestors()
Joshua Redstone <joshua.redstone@fb.com>
parents: 16867
diff changeset
415 Does not generate revs lower than stoprev.
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
416
18090
9abc55ef85b5 revlog: move ancestor generation out to a new class
Siddharth Agarwal <sid0@fb.com>
parents: 18083
diff changeset
417 See the documentation for ancestor.lazyancestors for more details."""
18081
f88c60e740a1 revlog.ancestors: add support for including revs
Siddharth Agarwal <sid0@fb.com>
parents: 17975
diff changeset
418
23328
3a7d9c0c57a5 ancestor.lazyancestors: take parentrevs function rather than changelog
Siddharth Agarwal <sid0@fb.com>
parents: 23306
diff changeset
419 return ancestor.lazyancestors(self.parentrevs, revs, stoprev=stoprev,
18090
9abc55ef85b5 revlog: move ancestor generation out to a new class
Siddharth Agarwal <sid0@fb.com>
parents: 18083
diff changeset
420 inclusive=inclusive)
6872
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
421
16867
1093ad1e8903 revlog: descendants(*revs) becomes descendants(revs) (API)
Bryan O'Sullivan <bryano@fb.com>
parents: 16866
diff changeset
422 def descendants(self, revs):
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
423 """Generate the descendants of 'revs' in revision order.
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
424
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
425 Yield a sequence of revision numbers starting with a child of
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
426 some rev in revs, i.e., each revision is *not* considered a
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
427 descendant of itself. Results are ordered by revision number (a
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
428 topological sort)."""
12950
2405b4a5964a revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12949
diff changeset
429 first = min(revs)
2405b4a5964a revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12949
diff changeset
430 if first == nullrev:
2405b4a5964a revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12949
diff changeset
431 for i in self:
2405b4a5964a revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12949
diff changeset
432 yield i
2405b4a5964a revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12949
diff changeset
433 return
2405b4a5964a revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12949
diff changeset
434
8150
bbc24c0753a0 util: use built-in set and frozenset
Martin Geisler <mg@lazybytes.net>
parents: 8073
diff changeset
435 seen = set(revs)
17672
474047947b8f clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17537
diff changeset
436 for i in self.revs(start=first + 1):
6872
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
437 for x in self.parentrevs(i):
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
438 if x != nullrev and x in seen:
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
439 seen.add(i)
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
440 yield i
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
441 break
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
442
13741
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
443 def findcommonmissing(self, common=None, heads=None):
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
444 """Return a tuple of the ancestors of common and the ancestors of heads
15835
fa15869bf95c revlog: improve docstring for findcommonmissing
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 15827
diff changeset
445 that are not ancestors of common. In revset terminology, we return the
fa15869bf95c revlog: improve docstring for findcommonmissing
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 15827
diff changeset
446 tuple:
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
447
15835
fa15869bf95c revlog: improve docstring for findcommonmissing
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 15827
diff changeset
448 ::common, (::heads) - (::common)
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
449
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
450 The list is sorted by revision number, meaning it is
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
451 topologically sorted.
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
452
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
453 'heads' and 'common' are both lists of node IDs. If heads is
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
454 not supplied, uses all of the revlog's heads. If common is not
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
455 supplied, uses nullid."""
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
456 if common is None:
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
457 common = [nullid]
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
458 if heads is None:
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
459 heads = self.heads()
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
460
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
461 common = [self.rev(n) for n in common]
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
462 heads = [self.rev(n) for n in heads]
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
463
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
464 # we want the ancestors, but inclusive
20073
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
465 class lazyset(object):
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
466 def __init__(self, lazyvalues):
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
467 self.addedvalues = set()
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
468 self.lazyvalues = lazyvalues
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
469
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
470 def __contains__(self, value):
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
471 return value in self.addedvalues or value in self.lazyvalues
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
472
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
473 def __iter__(self):
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
474 added = self.addedvalues
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
475 for r in added:
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
476 yield r
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
477 for r in self.lazyvalues:
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
478 if not r in added:
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
479 yield r
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
480
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
481 def add(self, value):
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
482 self.addedvalues.add(value)
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
483
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
484 def update(self, values):
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
485 self.addedvalues.update(values)
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
486
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
487 has = lazyset(self.ancestors(common))
8152
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
488 has.add(nullrev)
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
489 has.update(common)
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
490
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
491 # take all ancestors from heads that aren't in has
8453
d1ca637b0773 revlog.missing(): use sets instead of a dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8391
diff changeset
492 missing = set()
25113
0ca8410ea345 util: drop alias for collections.deque
Martin von Zweigbergk <martinvonz@google.com>
parents: 24454
diff changeset
493 visit = collections.deque(r for r in heads if r not in has)
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
494 while visit:
16803
107a3270a24a cleanup: use the deque type where appropriate
Bryan O'Sullivan <bryano@fb.com>
parents: 16786
diff changeset
495 r = visit.popleft()
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
496 if r in missing:
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
497 continue
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
498 else:
8453
d1ca637b0773 revlog.missing(): use sets instead of a dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8391
diff changeset
499 missing.add(r)
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
500 for p in self.parentrevs(r):
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
501 if p not in has:
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
502 visit.append(p)
8453
d1ca637b0773 revlog.missing(): use sets instead of a dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8391
diff changeset
503 missing = list(missing)
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
504 missing.sort()
13741
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
505 return has, [self.node(r) for r in missing]
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
506
23337
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
507 def incrementalmissingrevs(self, common=None):
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
508 """Return an object that can be used to incrementally compute the
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
509 revision numbers of the ancestors of arbitrary sets that are not
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
510 ancestors of common. This is an ancestor.incrementalmissingancestors
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
511 object.
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
512
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
513 'common' is a list of revision numbers. If common is not supplied, uses
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
514 nullrev.
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
515 """
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
516 if common is None:
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
517 common = [nullrev]
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
518
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
519 return ancestor.incrementalmissingancestors(self.parentrevs, common)
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
520
17972
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
521 def findmissingrevs(self, common=None, heads=None):
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
522 """Return the revision numbers of the ancestors of heads that
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
523 are not ancestors of common.
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
524
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
525 More specifically, return a list of revision numbers corresponding to
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
526 nodes N such that every N satisfies the following constraints:
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
527
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
528 1. N is an ancestor of some node in 'heads'
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
529 2. N is not an ancestor of any node in 'common'
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
530
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
531 The list is sorted by revision number, meaning it is
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
532 topologically sorted.
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
533
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
534 'heads' and 'common' are both lists of revision numbers. If heads is
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
535 not supplied, uses all of the revlog's heads. If common is not
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
536 supplied, uses nullid."""
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
537 if common is None:
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
538 common = [nullrev]
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
539 if heads is None:
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
540 heads = self.headrevs()
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
541
23338
d8f5b2f50f41 revlog: switch findmissing* methods to incrementalmissingrevs
Siddharth Agarwal <sid0@fb.com>
parents: 23337
diff changeset
542 inc = self.incrementalmissingrevs(common=common)
d8f5b2f50f41 revlog: switch findmissing* methods to incrementalmissingrevs
Siddharth Agarwal <sid0@fb.com>
parents: 23337
diff changeset
543 return inc.missingancestors(heads)
17972
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
544
13741
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
545 def findmissing(self, common=None, heads=None):
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
546 """Return the ancestors of heads that are not ancestors of common.
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
547
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
548 More specifically, return a list of nodes N such that every N
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
549 satisfies the following constraints:
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
550
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
551 1. N is an ancestor of some node in 'heads'
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
552 2. N is not an ancestor of any node in 'common'
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
553
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
554 The list is sorted by revision number, meaning it is
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
555 topologically sorted.
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
556
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
557 'heads' and 'common' are both lists of node IDs. If heads is
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
558 not supplied, uses all of the revlog's heads. If common is not
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
559 supplied, uses nullid."""
17971
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
560 if common is None:
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
561 common = [nullid]
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
562 if heads is None:
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
563 heads = self.heads()
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
564
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
565 common = [self.rev(n) for n in common]
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
566 heads = [self.rev(n) for n in heads]
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
567
23338
d8f5b2f50f41 revlog: switch findmissing* methods to incrementalmissingrevs
Siddharth Agarwal <sid0@fb.com>
parents: 23337
diff changeset
568 inc = self.incrementalmissingrevs(common=common)
d8f5b2f50f41 revlog: switch findmissing* methods to incrementalmissingrevs
Siddharth Agarwal <sid0@fb.com>
parents: 23337
diff changeset
569 return [self.node(r) for r in inc.missingancestors(heads)]
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
570
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
571 def nodesbetween(self, roots=None, heads=None):
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
572 """Return a topological path from 'roots' to 'heads'.
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
573
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
574 Return a tuple (nodes, outroots, outheads) where 'nodes' is a
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
575 topologically sorted list of all nodes N that satisfy both of
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
576 these constraints:
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
577
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
578 1. N is a descendant of some node in 'roots'
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
579 2. N is an ancestor of some node in 'heads'
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
580
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
581 Every node is considered to be both a descendant and an ancestor
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
582 of itself, so every reachable node in 'roots' and 'heads' will be
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
583 included in 'nodes'.
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
584
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
585 'outroots' is the list of reachable nodes in 'roots', i.e., the
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
586 subset of 'roots' that is returned in 'nodes'. Likewise,
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
587 'outheads' is the subset of 'heads' that is also in 'nodes'.
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
588
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
589 'roots' and 'heads' are both lists of node IDs. If 'roots' is
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
590 unspecified, uses nullid as the only root. If 'heads' is
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
591 unspecified, uses list of all of the revlog's heads."""
1463
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
592 nonodes = ([], [], [])
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
593 if roots is not None:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
594 roots = list(roots)
1463
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
595 if not roots:
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
596 return nonodes
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
597 lowestrev = min([self.rev(n) for n in roots])
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
598 else:
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
599 roots = [nullid] # Everybody's a descendant of nullid
3578
3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3508
diff changeset
600 lowestrev = nullrev
3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3508
diff changeset
601 if (lowestrev == nullrev) and (heads is None):
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
602 # We want _all_ the nodes!
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
603 return ([self.node(r) for r in self], [nullid], list(self.heads()))
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
604 if heads is None:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
605 # All nodes are ancestors, so the latest ancestor is the last
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
606 # node.
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
607 highestrev = len(self) - 1
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
608 # Set ancestors to None to signal that every node is an ancestor.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
609 ancestors = None
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
610 # Set heads to an empty dictionary for later discovery of heads
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
611 heads = {}
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
612 else:
1463
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
613 heads = list(heads)
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
614 if not heads:
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
615 return nonodes
8464
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
616 ancestors = set()
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
617 # Turn heads into a dictionary so we can remove 'fake' heads.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
618 # Also, later we will be using it to filter out the heads we can't
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
619 # find from roots.
14219
c33427080671 revlog: use real Booleans instead of 0/1 in nodesbetween
Martin Geisler <mg@aragost.com>
parents: 14208
diff changeset
620 heads = dict.fromkeys(heads, False)
3360
ef8307585b41 nodesbetween: fix a bug with duplicate heads
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3335
diff changeset
621 # Start at the top and keep marking parents until we're done.
8163
62d7287fe6b0 rebase, revlog: use set(x) instead of set(x.keys())
Martin Geisler <mg@lazybytes.net>
parents: 8153
diff changeset
622 nodestotag = set(heads)
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
623 # Remember where the top was so we can use it as a limit later.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
624 highestrev = max([self.rev(n) for n in nodestotag])
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
625 while nodestotag:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
626 # grab a node to tag
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
627 n = nodestotag.pop()
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
628 # Never tag nullid
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
629 if n == nullid:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
630 continue
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
631 # A node's revision number represents its place in a
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
632 # topologically sorted list of nodes.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
633 r = self.rev(n)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
634 if r >= lowestrev:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
635 if n not in ancestors:
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
636 # If we are possibly a descendant of one of the roots
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
637 # and we haven't already been marked as an ancestor
8464
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
638 ancestors.add(n) # Mark as ancestor
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
639 # Add non-nullid parents to list of nodes to tag.
8153
616f20e1004a revlog: let nodestotag be a set instead of a list
Martin Geisler <mg@lazybytes.net>
parents: 8152
diff changeset
640 nodestotag.update([p for p in self.parents(n) if
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
641 p != nullid])
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
642 elif n in heads: # We've seen it before, is it a fake head?
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
643 # So it is, real heads should not be the ancestors of
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
644 # any other heads.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
645 heads.pop(n)
1459
106fdec8e1fb Fix small bug in nodesbetween if heads is [nullid].
Eric Hopper <hopper@omnifarious.org>
parents: 1458
diff changeset
646 if not ancestors:
1463
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
647 return nonodes
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
648 # Now that we have our set of ancestors, we want to remove any
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
649 # roots that are not ancestors.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
650
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
651 # If one of the roots was nullid, everything is included anyway.
3578
3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3508
diff changeset
652 if lowestrev > nullrev:
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
653 # But, since we weren't, let's recompute the lowest rev to not
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
654 # include roots that aren't ancestors.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
655
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
656 # Filter out roots that aren't ancestors of heads
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
657 roots = [n for n in roots if n in ancestors]
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
658 # Recompute the lowest revision
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
659 if roots:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
660 lowestrev = min([self.rev(n) for n in roots])
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
661 else:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
662 # No more roots? Return empty list
1463
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
663 return nonodes
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
664 else:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
665 # We are descending from nullid, and don't need to care about
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
666 # any other roots.
3578
3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3508
diff changeset
667 lowestrev = nullrev
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
668 roots = [nullid]
8152
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
669 # Transform our roots list into a set.
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
670 descendants = set(roots)
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
671 # Also, keep the original roots so we can filter out roots that aren't
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
672 # 'real' roots (i.e. are descended from other roots).
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
673 roots = descendants.copy()
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
674 # Our topologically sorted list of output nodes.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
675 orderedout = []
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
676 # Don't start at nullid since we don't want nullid in our output list,
17483
fe3b26048140 spelling: descendants
timeless@mozdev.org
parents: 17150
diff changeset
677 # and if nullid shows up in descendants, empty parents will look like
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
678 # they're descendants.
17672
474047947b8f clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17537
diff changeset
679 for r in self.revs(start=max(lowestrev, 0), stop=highestrev + 1):
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
680 n = self.node(r)
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
681 isdescendant = False
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
682 if lowestrev == nullrev: # Everybody is a descendant of nullid
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
683 isdescendant = True
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
684 elif n in descendants:
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
685 # n is already a descendant
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
686 isdescendant = True
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
687 # This check only needs to be done here because all the roots
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
688 # will start being marked is descendants before the loop.
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
689 if n in roots:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
690 # If n was a root, check if it's a 'real' root.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
691 p = tuple(self.parents(n))
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
692 # If any of its parents are descendants, it's not a root.
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
693 if (p[0] in descendants) or (p[1] in descendants):
8152
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
694 roots.remove(n)
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
695 else:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
696 p = tuple(self.parents(n))
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
697 # A node is a descendant if either of its parents are
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
698 # descendants. (We seeded the dependents list with the roots
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
699 # up there, remember?)
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
700 if (p[0] in descendants) or (p[1] in descendants):
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
701 descendants.add(n)
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
702 isdescendant = True
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
703 if isdescendant and ((ancestors is None) or (n in ancestors)):
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
704 # Only include nodes that are both descendants and ancestors.
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
705 orderedout.append(n)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
706 if (ancestors is not None) and (n in heads):
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
707 # We're trying to figure out which heads are reachable
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
708 # from roots.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
709 # Mark this head as having been reached
14219
c33427080671 revlog: use real Booleans instead of 0/1 in nodesbetween
Martin Geisler <mg@aragost.com>
parents: 14208
diff changeset
710 heads[n] = True
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
711 elif ancestors is None:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
712 # Otherwise, we're trying to discover the heads.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
713 # Assume this is a head because if it isn't, the next step
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
714 # will eventually remove it.
14219
c33427080671 revlog: use real Booleans instead of 0/1 in nodesbetween
Martin Geisler <mg@aragost.com>
parents: 14208
diff changeset
715 heads[n] = True
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
716 # But, obviously its parents aren't.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
717 for p in self.parents(n):
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
718 heads.pop(p, None)
14219
c33427080671 revlog: use real Booleans instead of 0/1 in nodesbetween
Martin Geisler <mg@aragost.com>
parents: 14208
diff changeset
719 heads = [n for n, flag in heads.iteritems() if flag]
8152
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
720 roots = list(roots)
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
721 assert orderedout
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
722 assert roots
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
723 assert heads
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
724 return (orderedout, roots, heads)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
725
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
726 def headrevs(self):
16786
2631cd5dd244 revlog: switch to a C version of headrevs
Bryan O'Sullivan <bryano@fb.com>
parents: 16762
diff changeset
727 try:
2631cd5dd244 revlog: switch to a C version of headrevs
Bryan O'Sullivan <bryano@fb.com>
parents: 16762
diff changeset
728 return self.index.headrevs()
2631cd5dd244 revlog: switch to a C version of headrevs
Bryan O'Sullivan <bryano@fb.com>
parents: 16762
diff changeset
729 except AttributeError:
17674
e69274f8d444 clfilter: split `revlog.headrevs` C call from python code
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17673
diff changeset
730 return self._headrevs()
e69274f8d444 clfilter: split `revlog.headrevs` C call from python code
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17673
diff changeset
731
24444
27e3ba73fbb1 phase: default to C implementation for phase computation
Laurent Charignon <lcharignon@fb.com>
parents: 24255
diff changeset
732 def computephases(self, roots):
25361
1635579f9baf phases: fix bug where native phase computation wasn't called
Laurent Charignon <lcharignon@fb.com>
parents: 25113
diff changeset
733 return self.index.computephasesmapsets(roots)
24444
27e3ba73fbb1 phase: default to C implementation for phase computation
Laurent Charignon <lcharignon@fb.com>
parents: 24255
diff changeset
734
17674
e69274f8d444 clfilter: split `revlog.headrevs` C call from python code
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17673
diff changeset
735 def _headrevs(self):
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
736 count = len(self)
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
737 if not count:
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
738 return [nullrev]
17673
d686c6876ef6 clfilter: handle non contiguous iteration in `revlov.headrevs`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17672
diff changeset
739 # we won't iter over filtered rev so nobody is a head at start
d686c6876ef6 clfilter: handle non contiguous iteration in `revlov.headrevs`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17672
diff changeset
740 ishead = [0] * (count + 1)
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
741 index = self.index
17672
474047947b8f clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17537
diff changeset
742 for r in self:
17673
d686c6876ef6 clfilter: handle non contiguous iteration in `revlov.headrevs`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17672
diff changeset
743 ishead[r] = 1 # I may be an head
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
744 e = index[r]
17673
d686c6876ef6 clfilter: handle non contiguous iteration in `revlov.headrevs`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17672
diff changeset
745 ishead[e[5]] = ishead[e[6]] = 0 # my parent are not
d686c6876ef6 clfilter: handle non contiguous iteration in `revlov.headrevs`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17672
diff changeset
746 return [r for r, val in enumerate(ishead) if val]
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
747
3923
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
748 def heads(self, start=None, stop=None):
1550
ccb9b62de892 add a -r/--rev option to heads to show only heads descendant from rev
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1535
diff changeset
749 """return the list of all nodes that have no children
1551
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
750
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
751 if start is specified, only heads that are descendants of
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
752 start will be returned
3923
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
753 if stop is specified, it will consider all the revs from stop
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
754 as if they had no children
1551
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
755 """
4991
9c8c42bcf17a revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents: 4990
diff changeset
756 if start is None and stop is None:
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
757 if not len(self):
4991
9c8c42bcf17a revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents: 4990
diff changeset
758 return [nullid]
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
759 return [self.node(r) for r in self.headrevs()]
4991
9c8c42bcf17a revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents: 4990
diff changeset
760
1551
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
761 if start is None:
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
762 start = nullid
3923
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
763 if stop is None:
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
764 stop = []
8152
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
765 stoprevs = set([self.rev(n) for n in stop])
1550
ccb9b62de892 add a -r/--rev option to heads to show only heads descendant from rev
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1535
diff changeset
766 startrev = self.rev(start)
8464
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
767 reachable = set((startrev,))
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
768 heads = set((startrev,))
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
769
2490
6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 2489
diff changeset
770 parentrevs = self.parentrevs
17672
474047947b8f clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17537
diff changeset
771 for r in self.revs(start=startrev + 1):
2490
6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 2489
diff changeset
772 for p in parentrevs(r):
6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 2489
diff changeset
773 if p in reachable:
3923
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
774 if r not in stoprevs:
8464
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
775 reachable.add(r)
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
776 heads.add(r)
3923
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
777 if p in heads and p not in stoprevs:
8464
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
778 heads.remove(p)
3923
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
779
2490
6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 2489
diff changeset
780 return [self.node(r) for r in heads]
370
c90385d82aec revlog: add a children function
mpm@selenic.com
parents: 330
diff changeset
781
c90385d82aec revlog: add a children function
mpm@selenic.com
parents: 330
diff changeset
782 def children(self, node):
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
783 """find the children of a given node"""
370
c90385d82aec revlog: add a children function
mpm@selenic.com
parents: 330
diff changeset
784 c = []
c90385d82aec revlog: add a children function
mpm@selenic.com
parents: 330
diff changeset
785 p = self.rev(node)
17672
474047947b8f clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17537
diff changeset
786 for r in self.revs(start=p + 1):
4746
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
787 prevs = [pr for pr in self.parentrevs(r) if pr != nullrev]
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
788 if prevs:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
789 for pr in prevs:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
790 if pr == p:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
791 c.append(self.node(r))
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
792 elif p == nullrev:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
793 c.append(self.node(r))
370
c90385d82aec revlog: add a children function
mpm@selenic.com
parents: 330
diff changeset
794 return c
515
03f27b1381f9 Whitespace cleanups
mpm@selenic.com
parents: 484
diff changeset
795
10897
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
796 def descendant(self, start, end):
12949
6878eaa5a40d revlog: if start is nullrev, end is always a descendant
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12890
diff changeset
797 if start == nullrev:
6878eaa5a40d revlog: if start is nullrev, end is always a descendant
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 12890
diff changeset
798 return True
16867
1093ad1e8903 revlog: descendants(*revs) becomes descendants(revs) (API)
Bryan O'Sullivan <bryano@fb.com>
parents: 16866
diff changeset
799 for i in self.descendants([start]):
10897
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
800 if i == end:
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
801 return True
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
802 elif i > end:
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
803 break
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
804 return False
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
805
21104
40ace21cb3a1 revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents: 20965
diff changeset
806 def commonancestorsheads(self, a, b):
40ace21cb3a1 revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents: 20965
diff changeset
807 """calculate all the heads of the common ancestors of nodes a and b"""
40ace21cb3a1 revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents: 20965
diff changeset
808 a, b = self.rev(a), self.rev(b)
40ace21cb3a1 revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents: 20965
diff changeset
809 try:
40ace21cb3a1 revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents: 20965
diff changeset
810 ancs = self.index.commonancestorsheads(a, b)
40ace21cb3a1 revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents: 20965
diff changeset
811 except (AttributeError, OverflowError): # C implementation failed
40ace21cb3a1 revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents: 20965
diff changeset
812 ancs = ancestor.commonancestorsheads(self.parentrevs, a, b)
40ace21cb3a1 revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents: 20965
diff changeset
813 return map(self.node, ancs)
40ace21cb3a1 revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents: 20965
diff changeset
814
22381
392ae5cb8d62 revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents: 22282
diff changeset
815 def isancestor(self, a, b):
392ae5cb8d62 revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents: 22282
diff changeset
816 """return True if node a is an ancestor of node b
392ae5cb8d62 revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents: 22282
diff changeset
817
392ae5cb8d62 revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents: 22282
diff changeset
818 The implementation of this is trivial but the use of
392ae5cb8d62 revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents: 22282
diff changeset
819 commonancestorsheads is not."""
392ae5cb8d62 revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents: 22282
diff changeset
820 return a in self.commonancestorsheads(a, b)
392ae5cb8d62 revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents: 22282
diff changeset
821
21107
4a6c8b6b10d3 revlog: backout 514d32de6646 - commonancestors
Mads Kiilerich <madski@unity3d.com>
parents: 21104
diff changeset
822 def ancestor(self, a, b):
22389
94f77624dbb5 comments: describe ancestor consistently - avoid 'least common ancestor'
Mads Kiilerich <madski@unity3d.com>
parents: 22381
diff changeset
823 """calculate the "best" common ancestor of nodes a and b"""
21107
4a6c8b6b10d3 revlog: backout 514d32de6646 - commonancestors
Mads Kiilerich <madski@unity3d.com>
parents: 21104
diff changeset
824
10897
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
825 a, b = self.rev(a), self.rev(b)
18988
5bae936764bb parsers: a C implementation of the new ancestors algorithm
Bryan O'Sullivan <bryano@fb.com>
parents: 18987
diff changeset
826 try:
5bae936764bb parsers: a C implementation of the new ancestors algorithm
Bryan O'Sullivan <bryano@fb.com>
parents: 18987
diff changeset
827 ancs = self.index.ancestors(a, b)
21107
4a6c8b6b10d3 revlog: backout 514d32de6646 - commonancestors
Mads Kiilerich <madski@unity3d.com>
parents: 21104
diff changeset
828 except (AttributeError, OverflowError):
18988
5bae936764bb parsers: a C implementation of the new ancestors algorithm
Bryan O'Sullivan <bryano@fb.com>
parents: 18987
diff changeset
829 ancs = ancestor.ancestors(self.parentrevs, a, b)
18987
3605d4e7e618 revlog: choose a consistent ancestor when there's a tie
Bryan O'Sullivan <bryano@fb.com>
parents: 18986
diff changeset
830 if ancs:
3605d4e7e618 revlog: choose a consistent ancestor when there's a tie
Bryan O'Sullivan <bryano@fb.com>
parents: 18986
diff changeset
831 # choose a consistent winner when there's a tie
21107
4a6c8b6b10d3 revlog: backout 514d32de6646 - commonancestors
Mads Kiilerich <madski@unity3d.com>
parents: 21104
diff changeset
832 return min(map(self.node, ancs))
18987
3605d4e7e618 revlog: choose a consistent ancestor when there's a tie
Bryan O'Sullivan <bryano@fb.com>
parents: 18986
diff changeset
833 return nullid
10897
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
834
3453
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
835 def _match(self, id):
16762
93f8b9565257 revlog: don't handle long for revision matching
Matt Mackall <mpm@selenic.com>
parents: 16686
diff changeset
836 if isinstance(id, int):
3156
d01e4cb2f5f2 cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3139
diff changeset
837 # rev
2641
156fb1feab62 lookup should allow -1 to represent nullid (if passed an int as arg)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 2600
diff changeset
838 return self.node(id)
3438
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
839 if len(id) == 20:
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
840 # possibly a binary node
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
841 # odds of a binary node being all hex in ASCII are 1 in 10**25
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
842 try:
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
843 node = id
7874
d812029cda85 cleanup: drop variables for unused return values
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 7873
diff changeset
844 self.rev(node) # quick search the index
3438
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
845 return node
3930
01d98d68d697 Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
parents: 3928
diff changeset
846 except LookupError:
3438
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
847 pass # may be partial hex id
36
da28286bf6b7 Add smart node lookup by substring or by rev number
mpm@selenic.com
parents: 26
diff changeset
848 try:
3156
d01e4cb2f5f2 cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3139
diff changeset
849 # str(rev)
36
da28286bf6b7 Add smart node lookup by substring or by rev number
mpm@selenic.com
parents: 26
diff changeset
850 rev = int(id)
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
851 if str(rev) != id:
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
852 raise ValueError
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
853 if rev < 0:
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
854 rev = len(self) + rev
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
855 if rev < 0 or rev >= len(self):
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
856 raise ValueError
36
da28286bf6b7 Add smart node lookup by substring or by rev number
mpm@selenic.com
parents: 26
diff changeset
857 return self.node(rev)
469
e205194ca7ef Various node id lookup tweaks
mpm@selenic.com
parents: 451
diff changeset
858 except (ValueError, OverflowError):
3156
d01e4cb2f5f2 cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3139
diff changeset
859 pass
3453
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
860 if len(id) == 40:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
861 try:
3438
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
862 # a full hex nodeid?
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
863 node = bin(id)
7874
d812029cda85 cleanup: drop variables for unused return values
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 7873
diff changeset
864 self.rev(node)
3157
4fe41a9e4591 optimize revlog.lookup when passed hex(node)[:...]
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3156
diff changeset
865 return node
7062
efc579fdaf69 provide nicer feedback when an unknown node id is passed to a command
Sune Foldager <cryo@cyanite.org>
parents: 6912
diff changeset
866 except (TypeError, LookupError):
3453
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
867 pass
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
868
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
869 def _partialmatch(self, id):
16665
e410be860393 revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents: 16533
diff changeset
870 try:
19471
fd1bb7c1be78 revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents: 19326
diff changeset
871 n = self.index.partialmatch(id)
fd1bb7c1be78 revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents: 19326
diff changeset
872 if n and self.hasnode(n):
fd1bb7c1be78 revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents: 19326
diff changeset
873 return n
fd1bb7c1be78 revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents: 19326
diff changeset
874 return None
16665
e410be860393 revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents: 16533
diff changeset
875 except RevlogError:
e410be860393 revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents: 16533
diff changeset
876 # parsers.c radix tree lookup gave multiple matches
19471
fd1bb7c1be78 revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents: 19326
diff changeset
877 # fall through to slow path that filters hidden revisions
fd1bb7c1be78 revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents: 19326
diff changeset
878 pass
16665
e410be860393 revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents: 16533
diff changeset
879 except (AttributeError, ValueError):
e410be860393 revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents: 16533
diff changeset
880 # we are pure python, or key was too short to search radix tree
e410be860393 revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents: 16533
diff changeset
881 pass
e410be860393 revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents: 16533
diff changeset
882
13258
c2661863f16f revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents: 13254
diff changeset
883 if id in self._pcache:
c2661863f16f revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents: 13254
diff changeset
884 return self._pcache[id]
c2661863f16f revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents: 13254
diff changeset
885
3453
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
886 if len(id) < 40:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
887 try:
3438
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
888 # hex(node)[:...]
9029
0001e49f1c11 compat: use // for integer division
Alejandro Santos <alejolp@alejolp.com>
parents: 8658
diff changeset
889 l = len(id) // 2 # grab an even number of digits
13259
3b616dfa4b17 revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents: 13258
diff changeset
890 prefix = bin(id[:l * 2])
3b616dfa4b17 revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents: 13258
diff changeset
891 nl = [e[7] for e in self.index if e[7].startswith(prefix)]
19471
fd1bb7c1be78 revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents: 19326
diff changeset
892 nl = [n for n in nl if hex(n).startswith(id) and
fd1bb7c1be78 revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents: 19326
diff changeset
893 self.hasnode(n)]
7365
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
894 if len(nl) > 0:
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
895 if len(nl) == 1:
13258
c2661863f16f revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents: 13254
diff changeset
896 self._pcache[id] = nl[0]
7365
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
897 return nl[0]
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
898 raise LookupError(id, self.indexfile,
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
899 _('ambiguous identifier'))
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
900 return None
3453
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
901 except TypeError:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
902 pass
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
903
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
904 def lookup(self, id):
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
905 """locate a node based on:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
906 - revision number or str(revision number)
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
907 - nodeid or subset of hex nodeid
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
908 """
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
909 n = self._match(id)
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
910 if n is not None:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
911 return n
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
912 n = self._partialmatch(id)
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
913 if n:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
914 return n
515
03f27b1381f9 Whitespace cleanups
mpm@selenic.com
parents: 484
diff changeset
915
6228
c0c4c7b1e8d3 revlog: report node and file when lookup fails
Matt Mackall <mpm@selenic.com>
parents: 6212
diff changeset
916 raise LookupError(id, self.indexfile, _('no match found'))
36
da28286bf6b7 Add smart node lookup by substring or by rev number
mpm@selenic.com
parents: 26
diff changeset
917
2890
5df3e5cf16bc Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents: 2859
diff changeset
918 def cmp(self, node, text):
11539
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 11323
diff changeset
919 """compare text with a given file revision
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 11323
diff changeset
920
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 11323
diff changeset
921 returns True if text is different than what is stored.
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 11323
diff changeset
922 """
2890
5df3e5cf16bc Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents: 2859
diff changeset
923 p1, p2 = self.parents(node)
5df3e5cf16bc Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents: 2859
diff changeset
924 return hash(text, p1, p2) != node
5df3e5cf16bc Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents: 2859
diff changeset
925
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
926 def _addchunk(self, offset, data):
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
927 o, d = self._chunkcache
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
928 # try to add to existing cache
13253
61c9bc3da402 revlog: remove lazy index
Matt Mackall <mpm@selenic.com>
parents: 13239
diff changeset
929 if o + len(d) == offset and len(d) + len(data) < _chunksize:
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
930 self._chunkcache = o, d + data
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
931 else:
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
932 self._chunkcache = offset, data
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
933
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
934 def _loadchunk(self, offset, length):
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
935 if self._inline:
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
936 df = self.opener(self.indexfile)
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
937 else:
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
938 df = self.opener(self.datafile)
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
939
20179
5bb3826bdac4 revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents: 20074
diff changeset
940 # Cache data both forward and backward around the requested
5bb3826bdac4 revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents: 20074
diff changeset
941 # data, in a fixed size window. This helps speed up operations
5bb3826bdac4 revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents: 20074
diff changeset
942 # involving reading the revlog backwards.
20180
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
943 cachesize = self._chunkcachesize
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
944 realoffset = offset & ~(cachesize - 1)
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
945 reallength = (((offset + length + cachesize) & ~(cachesize - 1))
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
946 - realoffset)
20179
5bb3826bdac4 revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents: 20074
diff changeset
947 df.seek(realoffset)
5bb3826bdac4 revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents: 20074
diff changeset
948 d = df.read(reallength)
15407
ee112eb69d2a misc: adding missing file close() calls
Matt Mackall <mpm@selenic.com>
parents: 15057
diff changeset
949 df.close()
20179
5bb3826bdac4 revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents: 20074
diff changeset
950 self._addchunk(realoffset, d)
5bb3826bdac4 revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents: 20074
diff changeset
951 if offset != realoffset or reallength != length:
5bb3826bdac4 revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents: 20074
diff changeset
952 return util.buffer(d, offset - realoffset, length)
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
953 return d
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
954
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
955 def _getchunk(self, offset, length):
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
956 o, d = self._chunkcache
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
957 l = len(d)
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
958
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
959 # is it in the cache?
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
960 cachestart = offset - o
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
961 cacheend = cachestart + length
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
962 if cachestart >= 0 and cacheend <= l:
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
963 if cachestart == 0 and cacheend == l:
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
964 return d # avoid a copy
16423
a150923b49ba revlog: avoid an expensive string copy
Bryan O'Sullivan <bryano@fb.com>
parents: 16418
diff changeset
965 return util.buffer(d, cachestart, cacheend - cachestart)
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
966
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
967 return self._loadchunk(offset, length)
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
968
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
969 def _chunkraw(self, startrev, endrev):
8318
6b8513f8274a revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents: 8317
diff changeset
970 start = self.start(startrev)
19714
0e07c0b5fb1c revlog.revision: fix cache preload for inline revlogs
Siddharth Agarwal <sid0@fb.com>
parents: 19713
diff changeset
971 end = self.end(endrev)
8318
6b8513f8274a revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents: 8317
diff changeset
972 if self._inline:
6b8513f8274a revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents: 8317
diff changeset
973 start += (startrev + 1) * self._io.size
19714
0e07c0b5fb1c revlog.revision: fix cache preload for inline revlogs
Siddharth Agarwal <sid0@fb.com>
parents: 19713
diff changeset
974 end += (endrev + 1) * self._io.size
0e07c0b5fb1c revlog.revision: fix cache preload for inline revlogs
Siddharth Agarwal <sid0@fb.com>
parents: 19713
diff changeset
975 length = end - start
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
976 return self._getchunk(start, length)
8318
6b8513f8274a revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents: 8317
diff changeset
977
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
978 def _chunk(self, rev):
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
979 return decompress(self._chunkraw(rev, rev))
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
980
19713
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
981 def _chunks(self, revs):
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
982 '''faster version of [self._chunk(rev) for rev in revs]
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
983
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
984 Assumes that revs is in ascending order.'''
19716
e17976978ee4 revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19715
diff changeset
985 if not revs:
e17976978ee4 revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19715
diff changeset
986 return []
19713
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
987 start = self.start
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
988 length = self.length
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
989 inline = self._inline
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
990 iosize = self._io.size
19715
1aab406be57c revlog._chunks: inline getchunk
Siddharth Agarwal <sid0@fb.com>
parents: 19714
diff changeset
991 buffer = util.buffer
19713
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
992
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
993 l = []
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
994 ladd = l.append
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
995
19716
e17976978ee4 revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19715
diff changeset
996 # preload the cache
20957
469d949a7cb8 revlog: deal with chunk ranges over 2G on Windows (issue4215)
Matt Mackall <mpm@selenic.com>
parents: 20217
diff changeset
997 try:
21752
e250a482478e revlog: fix check-code error
Matt Mackall <mpm@selenic.com>
parents: 21750
diff changeset
998 while True:
21749
f13728d59c0e revlog: make _chunkcache access atomic
Matt Mackall <mpm@selenic.com>
parents: 21107
diff changeset
999 # ensure that the cache doesn't change out from under us
f13728d59c0e revlog: make _chunkcache access atomic
Matt Mackall <mpm@selenic.com>
parents: 21107
diff changeset
1000 _cache = self._chunkcache
f13728d59c0e revlog: make _chunkcache access atomic
Matt Mackall <mpm@selenic.com>
parents: 21107
diff changeset
1001 self._chunkraw(revs[0], revs[-1])
f13728d59c0e revlog: make _chunkcache access atomic
Matt Mackall <mpm@selenic.com>
parents: 21107
diff changeset
1002 if _cache == self._chunkcache:
f13728d59c0e revlog: make _chunkcache access atomic
Matt Mackall <mpm@selenic.com>
parents: 21107
diff changeset
1003 break
f13728d59c0e revlog: make _chunkcache access atomic
Matt Mackall <mpm@selenic.com>
parents: 21107
diff changeset
1004 offset, data = _cache
20957
469d949a7cb8 revlog: deal with chunk ranges over 2G on Windows (issue4215)
Matt Mackall <mpm@selenic.com>
parents: 20217
diff changeset
1005 except OverflowError:
469d949a7cb8 revlog: deal with chunk ranges over 2G on Windows (issue4215)
Matt Mackall <mpm@selenic.com>
parents: 20217
diff changeset
1006 # issue4215 - we can't cache a run of chunks greater than
469d949a7cb8 revlog: deal with chunk ranges over 2G on Windows (issue4215)
Matt Mackall <mpm@selenic.com>
parents: 20217
diff changeset
1007 # 2G on Windows
469d949a7cb8 revlog: deal with chunk ranges over 2G on Windows (issue4215)
Matt Mackall <mpm@selenic.com>
parents: 20217
diff changeset
1008 return [self._chunk(rev) for rev in revs]
19715
1aab406be57c revlog._chunks: inline getchunk
Siddharth Agarwal <sid0@fb.com>
parents: 19714
diff changeset
1009
19713
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
1010 for rev in revs:
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
1011 chunkstart = start(rev)
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
1012 if inline:
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
1013 chunkstart += (rev + 1) * iosize
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
1014 chunklength = length(rev)
19715
1aab406be57c revlog._chunks: inline getchunk
Siddharth Agarwal <sid0@fb.com>
parents: 19714
diff changeset
1015 ladd(decompress(buffer(data, chunkstart - offset, chunklength)))
19713
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
1016
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
1017 return l
14075
bc101902a68d revlog: introduce _chunkbase to allow filelog to override
Sune Foldager <cryo@cyanite.org>
parents: 14064
diff changeset
1018
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
1019 def _chunkclear(self):
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
1020 self._chunkcache = (0, '')
1598
14d1f1868bf6 cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1559
diff changeset
1021
11929
1839a7518b0d revlog: deltachain() returns chain of revs need to construct a revision
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11928
diff changeset
1022 def deltaparent(self, rev):
14195
0013d3eeb826 revlog: remove support for parentdelta
Sune Foldager <cryo@cyanite.org>
parents: 14164
diff changeset
1023 """return deltaparent of the given revision"""
14253
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
1024 base = self.index[rev][3]
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
1025 if base == rev:
14208
d62d597b8974 revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents: 14196
diff changeset
1026 return nullrev
14253
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
1027 elif self._generaldelta:
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
1028 return base
14208
d62d597b8974 revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents: 14196
diff changeset
1029 else:
d62d597b8974 revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents: 14196
diff changeset
1030 return rev - 1
11929
1839a7518b0d revlog: deltachain() returns chain of revs need to construct a revision
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11928
diff changeset
1031
1941
7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1853
diff changeset
1032 def revdiff(self, rev1, rev2):
7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1853
diff changeset
1033 """return or calculate a delta between two revisions"""
14208
d62d597b8974 revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents: 14196
diff changeset
1034 if rev1 != nullrev and self.deltaparent(rev2) == rev1:
16423
a150923b49ba revlog: avoid an expensive string copy
Bryan O'Sullivan <bryano@fb.com>
parents: 16418
diff changeset
1035 return str(self._chunk(rev2))
5005
72082bfced9a revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents: 5004
diff changeset
1036
16424
ff63d71ac8ab revlog: drop some unneeded rev.node calls in revdiff
Matt Mackall <mpm@selenic.com>
parents: 16423
diff changeset
1037 return mdiff.textdiff(self.revision(rev1),
ff63d71ac8ab revlog: drop some unneeded rev.node calls in revdiff
Matt Mackall <mpm@selenic.com>
parents: 16423
diff changeset
1038 self.revision(rev2))
119
c7a66f9752a4 Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents: 117
diff changeset
1039
16375
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
1040 def revision(self, nodeorrev):
16435
df347129305d revlog: fix partial revision() docstring (from d7d64b89a65c)
Patrick Mezard <patrick@mezard.eu>
parents: 16424
diff changeset
1041 """return an uncompressed revision of a given node or revision
df347129305d revlog: fix partial revision() docstring (from d7d64b89a65c)
Patrick Mezard <patrick@mezard.eu>
parents: 16424
diff changeset
1042 number.
df347129305d revlog: fix partial revision() docstring (from d7d64b89a65c)
Patrick Mezard <patrick@mezard.eu>
parents: 16424
diff changeset
1043 """
16375
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
1044 if isinstance(nodeorrev, int):
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
1045 rev = nodeorrev
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
1046 node = self.node(rev)
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
1047 else:
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
1048 node = nodeorrev
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
1049 rev = None
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
1050
21750
4ab287c2d337 revlog: hold a private reference to self._cache
Matt Mackall <mpm@selenic.com>
parents: 21749
diff changeset
1051 _cache = self._cache # grab local copy of cache to avoid thread race
11996
3195cf01dfb9 revlog.revision(): don't use nullrev as the default value for the cache
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11995
diff changeset
1052 cachedrev = None
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
1053 if node == nullid:
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
1054 return ""
21750
4ab287c2d337 revlog: hold a private reference to self._cache
Matt Mackall <mpm@selenic.com>
parents: 21749
diff changeset
1055 if _cache:
4ab287c2d337 revlog: hold a private reference to self._cache
Matt Mackall <mpm@selenic.com>
parents: 21749
diff changeset
1056 if _cache[0] == node:
4ab287c2d337 revlog: hold a private reference to self._cache
Matt Mackall <mpm@selenic.com>
parents: 21749
diff changeset
1057 return _cache[2]
4ab287c2d337 revlog: hold a private reference to self._cache
Matt Mackall <mpm@selenic.com>
parents: 21749
diff changeset
1058 cachedrev = _cache[1]
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
1059
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
1060 # look up what we need to read
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
1061 text = None
16375
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
1062 if rev is None:
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
1063 rev = self.rev(node)
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
1064
5004
825516d16b25 revlog: move flag checking out of the offset fastpath
Matt Mackall <mpm@selenic.com>
parents: 4996
diff changeset
1065 # check rev flags
11745
138c055ec57d revlog: add punched revision flag
Vishakh H <vsh426@gmail.com>
parents: 11693
diff changeset
1066 if self.flags(rev) & ~REVIDX_KNOWN_FLAGS:
5312
fb070713ff36 revlog: more robust for damaged indexes
Matt Mackall <mpm@selenic.com>
parents: 5007
diff changeset
1067 raise RevlogError(_('incompatible revision flag %x') %
11745
138c055ec57d revlog: add punched revision flag
Vishakh H <vsh426@gmail.com>
parents: 11693
diff changeset
1068 (self.flags(rev) & ~REVIDX_KNOWN_FLAGS))
5004
825516d16b25 revlog: move flag checking out of the offset fastpath
Matt Mackall <mpm@selenic.com>
parents: 4996
diff changeset
1069
11995
ff84cd2bdfaf revlog.revision(): minor cleanup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11963
diff changeset
1070 # build delta chain
11998
e789a811c21d revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11997
diff changeset
1071 chain = []
14252
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
1072 index = self.index # for performance
14253
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
1073 generaldelta = self._generaldelta
11998
e789a811c21d revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11997
diff changeset
1074 iterrev = rev
14252
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
1075 e = index[iterrev]
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
1076 while iterrev != e[3] and iterrev != cachedrev:
11998
e789a811c21d revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11997
diff changeset
1077 chain.append(iterrev)
14253
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
1078 if generaldelta:
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
1079 iterrev = e[3]
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
1080 else:
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
1081 iterrev -= 1
14252
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
1082 e = index[iterrev]
11995
ff84cd2bdfaf revlog.revision(): minor cleanup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11963
diff changeset
1083
11998
e789a811c21d revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11997
diff changeset
1084 if iterrev == cachedrev:
e789a811c21d revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11997
diff changeset
1085 # cache hit
21750
4ab287c2d337 revlog: hold a private reference to self._cache
Matt Mackall <mpm@selenic.com>
parents: 21749
diff changeset
1086 text = _cache[2]
19716
e17976978ee4 revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19715
diff changeset
1087 else:
e17976978ee4 revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19715
diff changeset
1088 chain.append(iterrev)
e17976978ee4 revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19715
diff changeset
1089 chain.reverse()
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
1090
11754
6ccd130eab0e revlog: drop cache after use to save memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11539
diff changeset
1091 # drop cache to save memory
6ccd130eab0e revlog: drop cache after use to save memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11539
diff changeset
1092 self._cache = None
6ccd130eab0e revlog: drop cache after use to save memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11539
diff changeset
1093
19716
e17976978ee4 revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19715
diff changeset
1094 bins = self._chunks(chain)
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
1095 if text is None:
19716
e17976978ee4 revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19715
diff changeset
1096 text = str(bins[0])
e17976978ee4 revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19715
diff changeset
1097 bins = bins[1:]
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
1098
4989
1aaed3d69772 revlog: eliminate diff and patches functions
Matt Mackall <mpm@selenic.com>
parents: 4988
diff changeset
1099 text = mdiff.patches(text, bins)
13239
12ed25f39d0b revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
1100
13276
ba6a63339f7c revlog: pass rev to _checkhash
Matt Mackall <mpm@selenic.com>
parents: 13275
diff changeset
1101 text = self._checkhash(text, node, rev)
13239
12ed25f39d0b revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
1102
12ed25f39d0b revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
1103 self._cache = (node, rev, text)
12ed25f39d0b revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
1104 return text
12ed25f39d0b revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
1105
22785
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
1106 def hash(self, text, p1, p2):
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
1107 """Compute a node hash.
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
1108
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
1109 Available as a function so that subclasses can replace the hash
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
1110 as needed.
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
1111 """
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
1112 return hash(text, p1, p2)
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
1113
13276
ba6a63339f7c revlog: pass rev to _checkhash
Matt Mackall <mpm@selenic.com>
parents: 13275
diff changeset
1114 def _checkhash(self, text, node, rev):
1598
14d1f1868bf6 cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1559
diff changeset
1115 p1, p2 = self.parents(node)
19624
55749cb14d24 revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents: 19471
diff changeset
1116 self.checkhash(text, p1, p2, node, rev)
55749cb14d24 revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents: 19471
diff changeset
1117 return text
55749cb14d24 revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents: 19471
diff changeset
1118
55749cb14d24 revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents: 19471
diff changeset
1119 def checkhash(self, text, p1, p2, node, rev=None):
22785
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
1120 if node != self.hash(text, p1, p2):
19624
55749cb14d24 revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents: 19471
diff changeset
1121 revornode = rev
55749cb14d24 revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents: 19471
diff changeset
1122 if revornode is None:
55749cb14d24 revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents: 19471
diff changeset
1123 revornode = templatefilters.short(hex(node))
55749cb14d24 revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents: 19471
diff changeset
1124 raise RevlogError(_("integrity check failed on %s:%s")
55749cb14d24 revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents: 19471
diff changeset
1125 % (self.indexfile, revornode))
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
1126
2075
343aeefb553b Make the appendfile class inline-data index friendly
mason@suse.com
parents: 2073
diff changeset
1127 def checkinlinesize(self, tr, fp=None):
10913
f2ecc5733c89 revlog: factor out _maxinline global.
Greg Ward <greg-hg@gerg.ca>
parents: 10404
diff changeset
1128 if not self._inline or (self.start(-2) + self.length(-2)) < _maxinline:
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1129 return
8315
c8493310ad9b revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents: 8314
diff changeset
1130
2084
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
1131 trinfo = tr.find(self.indexfile)
8527
f9a80054dd3c use 'x is None' instead of 'x == None'
Martin Geisler <mg@lazybytes.net>
parents: 8464
diff changeset
1132 if trinfo is None:
3680
69cf255a55a1 Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3679
diff changeset
1133 raise RevlogError(_("%s not found in the transaction")
69cf255a55a1 Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3679
diff changeset
1134 % self.indexfile)
2084
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
1135
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
1136 trindex = trinfo[2]
24454
59904edf0a5e revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents: 24444
diff changeset
1137 if trindex is not None:
59904edf0a5e revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents: 24444
diff changeset
1138 dataoff = self.start(trindex)
59904edf0a5e revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents: 24444
diff changeset
1139 else:
59904edf0a5e revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents: 24444
diff changeset
1140 # revlog was stripped at start of transaction, use all leftover data
59904edf0a5e revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents: 24444
diff changeset
1141 trindex = len(self) - 1
59904edf0a5e revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents: 24444
diff changeset
1142 dataoff = self.end(-2)
2084
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
1143
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
1144 tr.add(self.datafile, dataoff)
8315
c8493310ad9b revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents: 8314
diff changeset
1145
8317
5cdf4067857a revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents: 8316
diff changeset
1146 if fp:
5cdf4067857a revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents: 8316
diff changeset
1147 fp.flush()
5cdf4067857a revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents: 8316
diff changeset
1148 fp.close()
8315
c8493310ad9b revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents: 8314
diff changeset
1149
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1150 df = self.opener(self.datafile, 'w')
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1151 try:
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
1152 for r in self:
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
1153 df.write(self._chunkraw(r, r))
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1154 finally:
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1155 df.close()
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1156
2076
d007df6daf8e Create an atomic opener that does not automatically rename on close
mason@suse.com
parents: 2075
diff changeset
1157 fp = self.opener(self.indexfile, 'w', atomictemp=True)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1158 self.version &= ~(REVLOGNGINLINEDATA)
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
1159 self._inline = False
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
1160 for i in self:
5338
f87685355c9c revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5325
diff changeset
1161 e = self._io.packentry(self.index[i], self.node, self.version, i)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1162 fp.write(e)
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1163
15057
774da7121fc9 atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents: 14960
diff changeset
1164 # if we don't call close, the temp file will never replace the
2076
d007df6daf8e Create an atomic opener that does not automatically rename on close
mason@suse.com
parents: 2075
diff changeset
1165 # real index
15057
774da7121fc9 atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents: 14960
diff changeset
1166 fp.close()
2084
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
1167
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
1168 tr.replace(self.indexfile, trindex * self._io.size)
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
1169 self._chunkclear()
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1170
19625
6a411a06cb1f revlog: pass node as an argument of addrevision
Wojciech Lopata <lopek@fb.com>
parents: 19624
diff changeset
1171 def addrevision(self, text, transaction, link, p1, p2, cachedelta=None,
6a411a06cb1f revlog: pass node as an argument of addrevision
Wojciech Lopata <lopek@fb.com>
parents: 19624
diff changeset
1172 node=None):
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
1173 """add a revision to the log
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
1174
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
1175 text - the revision data to add
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
1176 transaction - the transaction object used for rollback
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
1177 link - the linkrev data to add
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
1178 p1, p2 - the parent nodeids of the revision
12012
bade7a9c5c07 revlog: fix docstring
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12011
diff changeset
1179 cachedelta - an optional precomputed delta
19625
6a411a06cb1f revlog: pass node as an argument of addrevision
Wojciech Lopata <lopek@fb.com>
parents: 19624
diff changeset
1180 node - nodeid of revision; typically node is not specified, and it is
6a411a06cb1f revlog: pass node as an argument of addrevision
Wojciech Lopata <lopek@fb.com>
parents: 19624
diff changeset
1181 computed by default as hash(text, p1, p2), however subclasses might
6a411a06cb1f revlog: pass node as an argument of addrevision
Wojciech Lopata <lopek@fb.com>
parents: 19624
diff changeset
1182 use different hashing method (and override checkhash() in such case)
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
1183 """
19326
7014526d67a8 revlog: add exception when linkrev == nullrev
Durham Goode <durham@fb.com>
parents: 19200
diff changeset
1184 if link == nullrev:
7014526d67a8 revlog: add exception when linkrev == nullrev
Durham Goode <durham@fb.com>
parents: 19200
diff changeset
1185 raise RevlogError(_("attempted to add linkrev -1 to %s")
7014526d67a8 revlog: add exception when linkrev == nullrev
Durham Goode <durham@fb.com>
parents: 19200
diff changeset
1186 % self.indexfile)
25459
0bda5bfaf0b1 revlog: move size limit check to addrevision
Matt Mackall <mpm@selenic.com>
parents: 25410
diff changeset
1187
0bda5bfaf0b1 revlog: move size limit check to addrevision
Matt Mackall <mpm@selenic.com>
parents: 25410
diff changeset
1188 if len(text) > _maxentrysize:
0bda5bfaf0b1 revlog: move size limit check to addrevision
Matt Mackall <mpm@selenic.com>
parents: 25410
diff changeset
1189 raise RevlogError(
0bda5bfaf0b1 revlog: move size limit check to addrevision
Matt Mackall <mpm@selenic.com>
parents: 25410
diff changeset
1190 _("%s: size of %d bytes exceeds maximum revlog storage of 2GiB")
0bda5bfaf0b1 revlog: move size limit check to addrevision
Matt Mackall <mpm@selenic.com>
parents: 25410
diff changeset
1191 % (self.indexfile, len(text)))
0bda5bfaf0b1 revlog: move size limit check to addrevision
Matt Mackall <mpm@selenic.com>
parents: 25410
diff changeset
1192
22785
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
1193 node = node or self.hash(text, p1, p2)
14196
e7483ec3c374 revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents: 14195
diff changeset
1194 if node in self.nodemap:
12023
44c22dc193a4 revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12012
diff changeset
1195 return node
44c22dc193a4 revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12012
diff changeset
1196
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
1197 dfh = None
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
1198 if not self._inline:
3390
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
1199 dfh = self.opener(self.datafile, "a")
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
1200 ifh = self.opener(self.indexfile, "a+")
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1201 try:
12023
44c22dc193a4 revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12012
diff changeset
1202 return self._addrevision(node, text, transaction, link, p1, p2,
23856
062c3ad86651 revlog: add flags argument to _addrevision, update callers use default flags
Mike Edgar <adgar@google.com>
parents: 23855
diff changeset
1203 REVIDX_DEFAULT_FLAGS, cachedelta, ifh, dfh)
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1204 finally:
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1205 if dfh:
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1206 dfh.close()
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1207 ifh.close()
3390
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
1208
17128
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1209 def compress(self, text):
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1210 """ generate a possibly-compressed representation of text """
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1211 if not text:
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1212 return ("", text)
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1213 l = len(text)
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1214 bin = None
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1215 if l < 44:
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1216 pass
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1217 elif l > 1000000:
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1218 # zlib makes an internal copy, thus doubling memory usage for
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1219 # large files, so lets do this in pieces
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1220 z = zlib.compressobj()
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1221 p = []
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1222 pos = 0
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1223 while pos < l:
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1224 pos2 = pos + 2**20
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1225 p.append(z.compress(text[pos:pos2]))
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1226 pos = pos2
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1227 p.append(z.flush())
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1228 if sum(map(len, p)) < l:
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1229 bin = "".join(p)
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1230 else:
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1231 bin = _compress(text)
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1232 if bin is None or len(bin) > l:
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1233 if text[0] == '\0':
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1234 return ("", text)
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1235 return ('u', text)
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1236 return ("", bin)
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1237
23856
062c3ad86651 revlog: add flags argument to _addrevision, update callers use default flags
Mike Edgar <adgar@google.com>
parents: 23855
diff changeset
1238 def _addrevision(self, node, text, transaction, link, p1, p2, flags,
11962
5f7ee3db3dd8 revlog._addrevision(): make the parent of the cached delta explicit
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11935
diff changeset
1239 cachedelta, ifh, dfh):
14292
c97d8485b5fa revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents: 14270
diff changeset
1240 """internal function to add revisions to the log
12623
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
1241
14292
c97d8485b5fa revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents: 14270
diff changeset
1242 see addrevision for argument descriptions.
c97d8485b5fa revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents: 14270
diff changeset
1243 invariants:
c97d8485b5fa revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents: 14270
diff changeset
1244 - text is optional (can be None); if not set, cachedelta must be set.
17424
e7cfe3587ea4 fix trivial spelling errors
Mads Kiilerich <mads@kiilerich.com>
parents: 17150
diff changeset
1245 if both are set, they must correspond to each other.
14292
c97d8485b5fa revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents: 14270
diff changeset
1246 """
12886
c25945a148c1 revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents: 12624
diff changeset
1247 btext = [text]
c25945a148c1 revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents: 12624
diff changeset
1248 def buildtext():
c25945a148c1 revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents: 12624
diff changeset
1249 if btext[0] is not None:
c25945a148c1 revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents: 12624
diff changeset
1250 return btext[0]
12623
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
1251 # flush any pending writes here so we can read it in revision
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
1252 if dfh:
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
1253 dfh.flush()
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
1254 ifh.flush()
24122
da14b8eba806 revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents: 24120
diff changeset
1255 baserev = cachedelta[0]
da14b8eba806 revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents: 24120
diff changeset
1256 delta = cachedelta[1]
da14b8eba806 revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents: 24120
diff changeset
1257 # special case deltas which replace entire base; no need to decode
da14b8eba806 revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents: 24120
diff changeset
1258 # base revision. this neatly avoids censored bases, which throw when
da14b8eba806 revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents: 24120
diff changeset
1259 # they're decoded.
da14b8eba806 revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents: 24120
diff changeset
1260 hlen = struct.calcsize(">lll")
da14b8eba806 revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents: 24120
diff changeset
1261 if delta[:hlen] == mdiff.replacediffheader(self.rawsize(baserev),
da14b8eba806 revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents: 24120
diff changeset
1262 len(delta) - hlen):
da14b8eba806 revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents: 24120
diff changeset
1263 btext[0] = delta[hlen:]
da14b8eba806 revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents: 24120
diff changeset
1264 else:
da14b8eba806 revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents: 24120
diff changeset
1265 basetext = self.revision(self.node(baserev))
da14b8eba806 revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents: 24120
diff changeset
1266 btext[0] = mdiff.patch(basetext, delta)
22934
8a096d4d0862 revlog: support importing censored file revision tombstones
Mike Edgar <adgar@google.com>
parents: 22785
diff changeset
1267 try:
8a096d4d0862 revlog: support importing censored file revision tombstones
Mike Edgar <adgar@google.com>
parents: 22785
diff changeset
1268 self.checkhash(btext[0], p1, p2, node)
23857
8a3c132f93d2 revlog: verify censored flag when hashing added revision fulltext
Mike Edgar <adgar@google.com>
parents: 23856
diff changeset
1269 if flags & REVIDX_ISCENSORED:
8a3c132f93d2 revlog: verify censored flag when hashing added revision fulltext
Mike Edgar <adgar@google.com>
parents: 23856
diff changeset
1270 raise RevlogError(_('node %s is not censored') % node)
22934
8a096d4d0862 revlog: support importing censored file revision tombstones
Mike Edgar <adgar@google.com>
parents: 22785
diff changeset
1271 except CensoredNodeError:
23857
8a3c132f93d2 revlog: verify censored flag when hashing added revision fulltext
Mike Edgar <adgar@google.com>
parents: 23856
diff changeset
1272 # must pass the censored index flag to add censored revisions
8a3c132f93d2 revlog: verify censored flag when hashing added revision fulltext
Mike Edgar <adgar@google.com>
parents: 23856
diff changeset
1273 if not flags & REVIDX_ISCENSORED:
8a3c132f93d2 revlog: verify censored flag when hashing added revision fulltext
Mike Edgar <adgar@google.com>
parents: 23856
diff changeset
1274 raise
12886
c25945a148c1 revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents: 12624
diff changeset
1275 return btext[0]
12623
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
1276
12888
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
1277 def builddelta(rev):
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
1278 # can we use the cached delta?
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
1279 if cachedelta and cachedelta[0] == rev:
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
1280 delta = cachedelta[1]
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
1281 else:
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
1282 t = buildtext()
24123
eb2d41c6ec37 revlog: _addrevision creates full-replace deltas based on censored revisions
Mike Edgar <adgar@google.com>
parents: 24122
diff changeset
1283 if self.iscensored(rev):
eb2d41c6ec37 revlog: _addrevision creates full-replace deltas based on censored revisions
Mike Edgar <adgar@google.com>
parents: 24122
diff changeset
1284 # deltas based on a censored revision must replace the
eb2d41c6ec37 revlog: _addrevision creates full-replace deltas based on censored revisions
Mike Edgar <adgar@google.com>
parents: 24122
diff changeset
1285 # full content in one patch, so delta works everywhere
eb2d41c6ec37 revlog: _addrevision creates full-replace deltas based on censored revisions
Mike Edgar <adgar@google.com>
parents: 24122
diff changeset
1286 header = mdiff.replacediffheader(self.rawsize(rev), len(t))
eb2d41c6ec37 revlog: _addrevision creates full-replace deltas based on censored revisions
Mike Edgar <adgar@google.com>
parents: 24122
diff changeset
1287 delta = header + t
eb2d41c6ec37 revlog: _addrevision creates full-replace deltas based on censored revisions
Mike Edgar <adgar@google.com>
parents: 24122
diff changeset
1288 else:
eb2d41c6ec37 revlog: _addrevision creates full-replace deltas based on censored revisions
Mike Edgar <adgar@google.com>
parents: 24122
diff changeset
1289 ptext = self.revision(self.node(rev))
eb2d41c6ec37 revlog: _addrevision creates full-replace deltas based on censored revisions
Mike Edgar <adgar@google.com>
parents: 24122
diff changeset
1290 delta = mdiff.textdiff(ptext, t)
17128
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1291 data = self.compress(delta)
12888
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
1292 l = len(data[1]) + len(data[0])
14296
62e25c63fb3a revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents: 14292
diff changeset
1293 if basecache[0] == rev:
14270
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
1294 chainbase = basecache[1]
14252
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
1295 else:
14270
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
1296 chainbase = self.chainbase(rev)
17150
3ac9592b7ab4 backout e7167007c083
Matt Mackall <mpm@selenic.com>
parents: 17139
diff changeset
1297 dist = l + offset - self.start(chainbase)
14270
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
1298 if self._generaldelta:
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
1299 base = rev
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
1300 else:
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
1301 base = chainbase
23287
426d7f901789 revlog: bound based on the length of the compressed deltas
Siddharth Agarwal <sid0@fb.com>
parents: 23286
diff changeset
1302 chainlen, compresseddeltalen = self._chaininfo(rev)
426d7f901789 revlog: bound based on the length of the compressed deltas
Siddharth Agarwal <sid0@fb.com>
parents: 23286
diff changeset
1303 chainlen += 1
426d7f901789 revlog: bound based on the length of the compressed deltas
Siddharth Agarwal <sid0@fb.com>
parents: 23286
diff changeset
1304 compresseddeltalen += l
426d7f901789 revlog: bound based on the length of the compressed deltas
Siddharth Agarwal <sid0@fb.com>
parents: 23286
diff changeset
1305 return dist, l, data, base, chainbase, chainlen, compresseddeltalen
12888
ad01fe38afe6 revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents: 12887
diff changeset
1306
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
1307 curr = len(self)
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
1308 prev = curr - 1
14296
62e25c63fb3a revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents: 14292
diff changeset
1309 base = chainbase = curr
23255
76effa770ff9 revlog: add config variable for limiting delta-chain length
Mateusz Kwapich <mitrandir@fb.com>
parents: 23254
diff changeset
1310 chainlen = None
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
1311 offset = self.end(prev)
11962
5f7ee3db3dd8 revlog._addrevision(): make the parent of the cached delta explicit
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11935
diff changeset
1312 d = None
19764
e92650e39f1c generaldelta: initialize basecache properly
Wojciech Lopata <lopek@fb.com>
parents: 19471
diff changeset
1313 if self._basecache is None:
e92650e39f1c generaldelta: initialize basecache properly
Wojciech Lopata <lopek@fb.com>
parents: 19471
diff changeset
1314 self._basecache = (prev, self.chainbase(prev))
14296
62e25c63fb3a revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents: 14292
diff changeset
1315 basecache = self._basecache
12889
5482c6b826f4 revlog: precalculate p1 and p2 revisions
Matt Mackall <mpm@selenic.com>
parents: 12888
diff changeset
1316 p1r, p2r = self.rev(p1), self.rev(p2)
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
1317
11963
7c3aa579d98a parendelta: fix computation of base rev (fixes issue2337)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11962
diff changeset
1318 # should we try to build a delta?
12890
b1c839659140 revlog: choose best delta for parentdelta (issue2466)
Matt Mackall <mpm@selenic.com>
parents: 12889
diff changeset
1319 if prev != nullrev:
14270
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
1320 if self._generaldelta:
14301
f94993769c87 revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14296
diff changeset
1321 if p1r >= basecache[1]:
f94993769c87 revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14296
diff changeset
1322 d = builddelta(p1r)
f94993769c87 revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14296
diff changeset
1323 elif p2r >= basecache[1]:
f94993769c87 revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14296
diff changeset
1324 d = builddelta(p2r)
f94993769c87 revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14296
diff changeset
1325 else:
f94993769c87 revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14296
diff changeset
1326 d = builddelta(prev)
14270
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
1327 else:
d6907a5674a2 revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14253
diff changeset
1328 d = builddelta(prev)
23287
426d7f901789 revlog: bound based on the length of the compressed deltas
Siddharth Agarwal <sid0@fb.com>
parents: 23286
diff changeset
1329 dist, l, data, base, chainbase, chainlen, compresseddeltalen = d
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
1330
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
1331 # full versions are inserted when the needed deltas
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
1332 # become comparable to the uncompressed text
12623
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
1333 if text is None:
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
1334 textlen = mdiff.patchedsize(self.rawsize(cachedelta[0]),
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
1335 cachedelta[1])
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
1336 else:
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
1337 textlen = len(text)
23287
426d7f901789 revlog: bound based on the length of the compressed deltas
Siddharth Agarwal <sid0@fb.com>
parents: 23286
diff changeset
1338
426d7f901789 revlog: bound based on the length of the compressed deltas
Siddharth Agarwal <sid0@fb.com>
parents: 23286
diff changeset
1339 # - 'dist' is the distance from the base revision -- bounding it limits
426d7f901789 revlog: bound based on the length of the compressed deltas
Siddharth Agarwal <sid0@fb.com>
parents: 23286
diff changeset
1340 # the amount of I/O we need to do.
426d7f901789 revlog: bound based on the length of the compressed deltas
Siddharth Agarwal <sid0@fb.com>
parents: 23286
diff changeset
1341 # - 'compresseddeltalen' is the sum of the total size of deltas we need
426d7f901789 revlog: bound based on the length of the compressed deltas
Siddharth Agarwal <sid0@fb.com>
parents: 23286
diff changeset
1342 # to apply -- bounding it limits the amount of CPU we consume.
23288
2b9bc7963504 revlog: increase I/O bound to 4x the amount of data consumed
Siddharth Agarwal <sid0@fb.com>
parents: 23287
diff changeset
1343 if (d is None or dist > textlen * 4 or l > textlen or
23287
426d7f901789 revlog: bound based on the length of the compressed deltas
Siddharth Agarwal <sid0@fb.com>
parents: 23286
diff changeset
1344 compresseddeltalen > textlen * 2 or
23284
8d47c212b0dd revlog: make a predicate clearer with parens
Siddharth Agarwal <sid0@fb.com>
parents: 23255
diff changeset
1345 (self._maxchainlen and chainlen > self._maxchainlen)):
12886
c25945a148c1 revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents: 12624
diff changeset
1346 text = buildtext()
17128
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
1347 data = self.compress(text)
1533
3d11f81c9145 Reduce string duplication in compression code
mason@suse.com
parents: 1509
diff changeset
1348 l = len(data[1]) + len(data[0])
14296
62e25c63fb3a revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents: 14292
diff changeset
1349 base = chainbase = curr
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
1350
12623
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
1351 e = (offset_type(offset, flags), l, textlen,
12889
5482c6b826f4 revlog: precalculate p1 and p2 revisions
Matt Mackall <mpm@selenic.com>
parents: 12888
diff changeset
1352 base, link, p1r, p2r, node)
4979
06abdaf78788 revlog: add a magic null revision to our index
Matt Mackall <mpm@selenic.com>
parents: 4978
diff changeset
1353 self.index.insert(-1, e)
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
1354 self.nodemap[node] = curr
4977
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents: 4976
diff changeset
1355
5338
f87685355c9c revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5325
diff changeset
1356 entry = self._io.packentry(e, self.node, self.version, curr)
20217
33394f2e331e revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents: 20180
diff changeset
1357 self._writeentry(transaction, ifh, dfh, entry, data, link, offset)
33394f2e331e revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents: 20180
diff changeset
1358
33394f2e331e revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents: 20180
diff changeset
1359 if type(text) == str: # only accept immutable objects
33394f2e331e revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents: 20180
diff changeset
1360 self._cache = (node, curr, text)
33394f2e331e revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents: 20180
diff changeset
1361 self._basecache = (curr, chainbase)
33394f2e331e revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents: 20180
diff changeset
1362 return node
33394f2e331e revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents: 20180
diff changeset
1363
33394f2e331e revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents: 20180
diff changeset
1364 def _writeentry(self, transaction, ifh, dfh, entry, data, link, offset):
33394f2e331e revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents: 20180
diff changeset
1365 curr = len(self) - 1
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
1366 if not self._inline:
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1367 transaction.add(self.datafile, offset)
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
1368 transaction.add(self.indexfile, curr * len(entry))
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1369 if data[0]:
3390
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
1370 dfh.write(data[0])
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
1371 dfh.write(data[1])
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
1372 dfh.flush()
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
1373 ifh.write(entry)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1374 else:
4996
a0d37976cd5b revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents: 4994
diff changeset
1375 offset += curr * self._io.size
5324
8409a2e3a78d revlog: fix inlined revision transaction extra data (issue 749)
Patrick Mezard <pmezard@gmail.com>
parents: 5007
diff changeset
1376 transaction.add(self.indexfile, offset, curr)
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
1377 ifh.write(entry)
3390
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
1378 ifh.write(data[0])
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
1379 ifh.write(data[1])
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
1380 self.checkinlinesize(transaction, ifh)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1381
12335
e21fe9c5fb25 bundle: get rid of chunkiter
Matt Mackall <mpm@selenic.com>
parents: 12025
diff changeset
1382 def addgroup(self, bundle, linkmapper, transaction):
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
1383 """
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
1384 add a delta group
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
1385
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
1386 given a set of deltas, add them to the revision log. the
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
1387 first delta is against its parent, which should be in our
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
1388 log, the rest are against the previous delta.
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
1389 """
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
1390
12624
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
1391 # track the base of the current delta log
15890
e234eda20984 revlog: make addgroup returns a list of node contained in the added source
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 15835
diff changeset
1392 content = []
2002
4aab906517c6 Calling revlog.addgroup with an empty changegroup now raises RevlogError.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1981
diff changeset
1393 node = None
515
03f27b1381f9 Whitespace cleanups
mpm@selenic.com
parents: 484
diff changeset
1394
12624
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
1395 r = len(self)
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
1396 end = 0
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
1397 if r:
12624
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
1398 end = self.end(r - 1)
2072
74d3f5336b66 Implement revlogng.
mason@suse.com
parents: 2002
diff changeset
1399 ifh = self.opener(self.indexfile, "a+")
4996
a0d37976cd5b revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents: 4994
diff changeset
1400 isize = r * self._io.size
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
1401 if self._inline:
4996
a0d37976cd5b revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents: 4994
diff changeset
1402 transaction.add(self.indexfile, end + isize, r)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1403 dfh = None
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1404 else:
4996
a0d37976cd5b revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents: 4994
diff changeset
1405 transaction.add(self.indexfile, isize, r)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1406 transaction.add(self.datafile, end)
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1407 dfh = self.opener(self.datafile, "a")
24255
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
1408 def flush():
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
1409 if dfh:
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
1410 dfh.flush()
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
1411 ifh.flush()
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1412 try:
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1413 # loop through our set of deltas
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1414 chain = None
14494
1ffeeb91c55d check-code: flag 0/1 used as constant Boolean expression
Martin Geisler <mg@lazybytes.net>
parents: 14393
diff changeset
1415 while True:
14144
3c3c53d8343a unbundler: separate delta and header parsing
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14143
diff changeset
1416 chunkdata = bundle.deltachunk(chain)
12336
9d234f7d8a77 bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents: 12335
diff changeset
1417 if not chunkdata:
12335
e21fe9c5fb25 bundle: get rid of chunkiter
Matt Mackall <mpm@selenic.com>
parents: 12025
diff changeset
1418 break
12336
9d234f7d8a77 bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents: 12335
diff changeset
1419 node = chunkdata['node']
9d234f7d8a77 bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents: 12335
diff changeset
1420 p1 = chunkdata['p1']
9d234f7d8a77 bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents: 12335
diff changeset
1421 p2 = chunkdata['p2']
9d234f7d8a77 bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents: 12335
diff changeset
1422 cs = chunkdata['cs']
14141
bd1cbfe5db5c bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14075
diff changeset
1423 deltabase = chunkdata['deltabase']
bd1cbfe5db5c bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14075
diff changeset
1424 delta = chunkdata['delta']
12336
9d234f7d8a77 bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents: 12335
diff changeset
1425
15890
e234eda20984 revlog: make addgroup returns a list of node contained in the added source
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 15835
diff changeset
1426 content.append(node)
e234eda20984 revlog: make addgroup returns a list of node contained in the added source
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 15835
diff changeset
1427
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1428 link = linkmapper(cs)
14196
e7483ec3c374 revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents: 14195
diff changeset
1429 if node in self.nodemap:
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1430 # this can happen if two branches make the same change
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1431 chain = node
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1432 continue
192
5d8553352d2e Changes to network protocol
mpm@selenic.com
parents: 155
diff changeset
1433
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1434 for p in (p1, p2):
16686
67964cda8701 cleanup: "not x in y" -> "x not in y"
Brodie Rao <brodie@sf.io>
parents: 16665
diff changeset
1435 if p not in self.nodemap:
14196
e7483ec3c374 revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents: 14195
diff changeset
1436 raise LookupError(p, self.indexfile,
e7483ec3c374 revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents: 14195
diff changeset
1437 _('unknown parent'))
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
1438
14141
bd1cbfe5db5c bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14075
diff changeset
1439 if deltabase not in self.nodemap:
bd1cbfe5db5c bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14075
diff changeset
1440 raise LookupError(deltabase, self.indexfile,
bd1cbfe5db5c bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14075
diff changeset
1441 _('unknown delta base'))
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
1442
14141
bd1cbfe5db5c bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14075
diff changeset
1443 baserev = self.rev(deltabase)
24120
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
1444
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
1445 if baserev != nullrev and self.iscensored(baserev):
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
1446 # if base is censored, delta must be full replacement in a
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
1447 # single patch operation
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
1448 hlen = struct.calcsize(">lll")
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
1449 oldlen = self.rawsize(baserev)
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
1450 newlen = len(delta) - hlen
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
1451 if delta[:hlen] != mdiff.replacediffheader(oldlen, newlen):
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
1452 raise error.CensoredBaseError(self.indexfile,
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
1453 self.node(baserev))
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
1454
24255
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
1455 flags = REVIDX_DEFAULT_FLAGS
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
1456 if self._peek_iscensored(baserev, delta, flush):
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
1457 flags |= REVIDX_ISCENSORED
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
1458
12624
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
1459 chain = self._addrevision(node, None, transaction, link,
24255
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
1460 p1, p2, flags, (baserev, delta),
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
1461 ifh, dfh)
12624
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
1462 if not dfh and not self._inline:
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
1463 # addrevision switched from inline to conventional
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
1464 # reopen the index
13400
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13284
diff changeset
1465 ifh.close()
12624
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
1466 dfh = self.opener(self.datafile, "a")
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
1467 ifh = self.opener(self.indexfile, "a")
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1468 finally:
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1469 if dfh:
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1470 dfh.close()
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
1471 ifh.close()
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
1472
15890
e234eda20984 revlog: make addgroup returns a list of node contained in the added source
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 15835
diff changeset
1473 return content
1493
1a216cb4ee64 verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents: 1469
diff changeset
1474
24118
76f6ae06ddf5 revlog: add "iscensored()" to revlog public API
Mike Edgar <adgar@google.com>
parents: 24030
diff changeset
1475 def iscensored(self, rev):
76f6ae06ddf5 revlog: add "iscensored()" to revlog public API
Mike Edgar <adgar@google.com>
parents: 24030
diff changeset
1476 """Check if a file revision is censored."""
76f6ae06ddf5 revlog: add "iscensored()" to revlog public API
Mike Edgar <adgar@google.com>
parents: 24030
diff changeset
1477 return False
76f6ae06ddf5 revlog: add "iscensored()" to revlog public API
Mike Edgar <adgar@google.com>
parents: 24030
diff changeset
1478
24255
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
1479 def _peek_iscensored(self, baserev, delta, flush):
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
1480 """Quickly check if a delta produces a censored revision."""
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
1481 return False
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
1482
20074
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1483 def getstrippoint(self, minlink):
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1484 """find the minimum rev that must be stripped to strip the linkrev
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1485
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1486 Returns a tuple containing the minimum rev and a set of all revs that
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1487 have linkrevs that will be broken by this strip.
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1488 """
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1489 brokenrevs = set()
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1490 strippoint = len(self)
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1491
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1492 heads = {}
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1493 futurelargelinkrevs = set()
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1494 for head in self.headrevs():
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1495 headlinkrev = self.linkrev(head)
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1496 heads[head] = headlinkrev
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1497 if headlinkrev >= minlink:
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1498 futurelargelinkrevs.add(headlinkrev)
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1499
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1500 # This algorithm involves walking down the rev graph, starting at the
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1501 # heads. Since the revs are topologically sorted according to linkrev,
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1502 # once all head linkrevs are below the minlink, we know there are
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1503 # no more revs that could have a linkrev greater than minlink.
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1504 # So we can stop walking.
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1505 while futurelargelinkrevs:
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1506 strippoint -= 1
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1507 linkrev = heads.pop(strippoint)
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1508
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1509 if linkrev < minlink:
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1510 brokenrevs.add(strippoint)
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1511 else:
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1512 futurelargelinkrevs.remove(linkrev)
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1513
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1514 for p in self.parentrevs(strippoint):
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1515 if p != nullrev:
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1516 plinkrev = self.linkrev(p)
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1517 heads[p] = plinkrev
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1518 if plinkrev >= minlink:
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1519 futurelargelinkrevs.add(plinkrev)
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1520
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1521 return strippoint, brokenrevs
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1522
8073
e8a28556a0a8 strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8017
diff changeset
1523 def strip(self, minlink, transaction):
5910
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
1524 """truncate the revlog on the first revision with a linkrev >= minlink
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
1525
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
1526 This function is called when we're stripping revision minlink and
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
1527 its descendants from the repository.
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
1528
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
1529 We have to remove all revisions with linkrev >= minlink, because
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
1530 the equivalent changelog revisions will be renumbered after the
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
1531 strip.
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
1532
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
1533 So we truncate the revlog on the first of these revisions, and
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
1534 trust that the caller has saved the revisions that shouldn't be
15827
1dacf7672556 revlog: clarify strip docstring "readd" -> "re-add"
Steven Brown <StevenGBrown@gmail.com>
parents: 15407
diff changeset
1535 removed and that it'll re-add them after this truncation.
5910
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
1536 """
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
1537 if len(self) == 0:
1535
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
1538 return
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
1539
20074
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1540 rev, _ = self.getstrippoint(minlink)
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
1541 if rev == len(self):
5909
f45f7390c1c5 strip: calculate list of extra nodes to save and pass it to changegroupsubset
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5659
diff changeset
1542 return
1535
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
1543
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
1544 # first truncate the files on disk
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
1545 end = self.start(rev)
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
1546 if not self._inline:
8073
e8a28556a0a8 strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8017
diff changeset
1547 transaction.add(self.datafile, end)
4977
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents: 4976
diff changeset
1548 end = rev * self._io.size
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1549 else:
4977
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents: 4976
diff changeset
1550 end += rev * self._io.size
2072
74d3f5336b66 Implement revlogng.
mason@suse.com
parents: 2002
diff changeset
1551
8073
e8a28556a0a8 strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8017
diff changeset
1552 transaction.add(self.indexfile, end)
1535
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
1553
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
1554 # then reset internal state in memory to forget those revisions
4984
b4066fcbd6ba revlog: mark cache private
Matt Mackall <mpm@selenic.com>
parents: 4983
diff changeset
1555 self._cache = None
23306
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
1556 self._chaininfocache = {}
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
1557 self._chunkclear()
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
1558 for x in xrange(rev, len(self)):
2072
74d3f5336b66 Implement revlogng.
mason@suse.com
parents: 2002
diff changeset
1559 del self.nodemap[self.node(x)]
1535
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
1560
4979
06abdaf78788 revlog: add a magic null revision to our index
Matt Mackall <mpm@selenic.com>
parents: 4978
diff changeset
1561 del self.index[rev:-1]
1535
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
1562
1493
1a216cb4ee64 verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents: 1469
diff changeset
1563 def checksize(self):
1a216cb4ee64 verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents: 1469
diff changeset
1564 expected = 0
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
1565 if len(self):
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
1566 expected = max(0, self.end(len(self) - 1))
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1567
1494
249ca10d37f4 Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents: 1493
diff changeset
1568 try:
249ca10d37f4 Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents: 1493
diff changeset
1569 f = self.opener(self.datafile)
249ca10d37f4 Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents: 1493
diff changeset
1570 f.seek(0, 2)
249ca10d37f4 Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents: 1493
diff changeset
1571 actual = f.tell()
13400
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13284
diff changeset
1572 f.close()
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1573 dd = actual - expected
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25459
diff changeset
1574 except IOError as inst:
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1575 if inst.errno != errno.ENOENT:
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1576 raise
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1577 dd = 0
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1578
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1579 try:
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1580 f = self.opener(self.indexfile)
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1581 f.seek(0, 2)
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1582 actual = f.tell()
13400
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13284
diff changeset
1583 f.close()
4977
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents: 4976
diff changeset
1584 s = self._io.size
9029
0001e49f1c11 compat: use // for integer division
Alejandro Santos <alejolp@alejolp.com>
parents: 8658
diff changeset
1585 i = max(0, actual // s)
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1586 di = actual - (i * s)
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
1587 if self._inline:
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1588 databytes = 0
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
1589 for r in self:
5312
fb070713ff36 revlog: more robust for damaged indexes
Matt Mackall <mpm@selenic.com>
parents: 5007
diff changeset
1590 databytes += max(0, self.length(r))
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
1591 dd = 0
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
1592 di = actual - len(self) * s - databytes
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25459
diff changeset
1593 except IOError as inst:
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1594 if inst.errno != errno.ENOENT:
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1595 raise
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1596 di = 0
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1597
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
1598 return (dd, di)
6891
22cb82433842 revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents: 6872
diff changeset
1599
22cb82433842 revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents: 6872
diff changeset
1600 def files(self):
10282
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
1601 res = [self.indexfile]
6891
22cb82433842 revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents: 6872
diff changeset
1602 if not self._inline:
22cb82433842 revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents: 6872
diff changeset
1603 res.append(self.datafile)
22cb82433842 revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents: 6872
diff changeset
1604 return res