Mercurial > public > mercurial-scm > hg-stable
annotate mercurial/revlog.py @ 20180:969148b49fc6
revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Running perfmoonwalk on the Mercurial repo (with almost 20,000 changesets) on
Mac OS X with an SSD, before this change:
$ hg --config format.chunkcachesize=1024 perfmoonwalk
! wall 2.022021 comb 2.030000 user 1.970000 sys 0.060000 (best of 5)
(16,154 cache hits, 3,840 misses.)
$ hg --config format.chunkcachesize=4096 perfmoonwalk
! wall 1.901006 comb 1.900000 user 1.880000 sys 0.020000 (best of 6)
(19,003 hits, 991 misses.)
$ hg --config format.chunkcachesize=16384 perfmoonwalk
! wall 1.802775 comb 1.800000 user 1.800000 sys 0.000000 (best of 6)
(19,746 hits, 248 misses.)
$ hg --config format.chunkcachesize=32768 perfmoonwalk
! wall 1.818545 comb 1.810000 user 1.810000 sys 0.000000 (best of 6)
(19,870 hits, 124 misses.)
$ hg --config format.chunkcachesize=65536 perfmoonwalk
! wall 1.801350 comb 1.810000 user 1.800000 sys 0.010000 (best of 6)
(19,932 hits, 62 misses.)
$ hg --config format.chunkcachesize=131072 perfmoonwalk
! wall 1.805879 comb 1.820000 user 1.810000 sys 0.010000 (best of 6)
(19,963 hits, 31 misses.)
We may want to change the default size in the future based on testing and
user feedback.
author | Brodie Rao <brodie@sf.io> |
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date | Sun, 17 Nov 2013 18:04:29 -0500 |
parents | 5bb3826bdac4 |
children | 33394f2e331e |
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 |
10263 | 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 from node import bin, hex, nullid, nullrev |
3891 | 16 from i18n import _ |
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17 import ancestor, mdiff, parsers, error, util, templatefilters |
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18 import struct, zlib, errno |
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19 |
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20 _pack = struct.pack |
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21 _unpack = struct.unpack |
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22 _compress = zlib.compress |
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23 _decompress = zlib.decompress |
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24 _sha = util.sha1 |
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25 |
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26 # revlog header flags |
2072 | 27 REVLOGV0 = 0 |
28 REVLOGNG = 1 | |
2073 | 29 REVLOGNGINLINEDATA = (1 << 16) |
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30 REVLOGGENERALDELTA = (1 << 17) |
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31 REVLOG_DEFAULT_FLAGS = REVLOGNGINLINEDATA |
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32 REVLOG_DEFAULT_FORMAT = REVLOGNG |
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33 REVLOG_DEFAULT_VERSION = REVLOG_DEFAULT_FORMAT | REVLOG_DEFAULT_FLAGS |
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34 REVLOGNG_FLAGS = REVLOGNGINLINEDATA | REVLOGGENERALDELTA |
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35 |
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36 # revlog index flags |
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37 REVIDX_KNOWN_FLAGS = 0 |
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39 # max size of revlog with inline data |
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40 _maxinline = 131072 |
13253 | 41 _chunksize = 1048576 |
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42 |
7633 | 43 RevlogError = error.RevlogError |
44 LookupError = error.LookupError | |
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45 |
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46 def getoffset(q): |
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47 return int(q >> 16) |
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48 |
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49 def gettype(q): |
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50 return int(q & 0xFFFF) |
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51 |
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52 def offset_type(offset, type): |
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53 return long(long(offset) << 16 | type) |
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54 |
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55 nullhash = _sha(nullid) |
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56 |
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57 def hash(text, p1, p2): |
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58 """generate a hash from the given text and its parent hashes |
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59 |
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60 This hash combines both the current file contents and its history |
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61 in a manner that makes it easy to distinguish nodes with the same |
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62 content in the revision graph. |
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63 """ |
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64 # As of now, if one of the parent node is null, p2 is null |
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65 if p2 == nullid: |
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66 # deep copy of a hash is faster than creating one |
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67 s = nullhash.copy() |
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68 s.update(p1) |
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69 else: |
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70 # none of the parent nodes are nullid |
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71 l = [p1, p2] |
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72 l.sort() |
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73 s = _sha(l[0]) |
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74 s.update(l[1]) |
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75 s.update(text) |
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76 return s.digest() |
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77 |
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78 def decompress(bin): |
1083 | 79 """ decompress the given input """ |
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80 if not bin: |
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81 return bin |
112 | 82 t = bin[0] |
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83 if t == '\0': |
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84 return bin |
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85 if t == 'x': |
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86 try: |
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87 return _decompress(bin) |
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88 except zlib.error, e: |
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89 raise RevlogError(_("revlog decompress error: %s") % str(e)) |
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90 if t == 'u': |
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91 return bin[1:] |
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92 raise RevlogError(_("unknown compression type %r") % t) |
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93 |
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94 # index v0: |
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95 # 4 bytes: offset |
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96 # 4 bytes: compressed length |
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97 # 4 bytes: base rev |
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98 # 4 bytes: link rev |
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99 # 32 bytes: parent 1 nodeid |
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100 # 32 bytes: parent 2 nodeid |
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101 # 32 bytes: nodeid |
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102 indexformatv0 = ">4l20s20s20s" |
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103 v0shaoffset = 56 |
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104 |
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105 class revlogoldio(object): |
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106 def __init__(self): |
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107 self.size = struct.calcsize(indexformatv0) |
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108 |
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109 def parseindex(self, data, inline): |
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110 s = self.size |
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111 index = [] |
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112 nodemap = {nullid: nullrev} |
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113 n = off = 0 |
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114 l = len(data) |
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115 while off + s <= l: |
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116 cur = data[off:off + s] |
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117 off += s |
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118 e = _unpack(indexformatv0, cur) |
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119 # transform to revlogv1 format |
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120 e2 = (offset_type(e[0], 0), e[1], -1, e[2], e[3], |
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121 nodemap.get(e[4], nullrev), nodemap.get(e[5], nullrev), e[6]) |
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122 index.append(e2) |
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123 nodemap[e[6]] = n |
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124 n += 1 |
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125 |
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126 # add the magic null revision at -1 |
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127 index.append((0, 0, 0, -1, -1, -1, -1, nullid)) |
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128 |
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129 return index, nodemap, None |
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130 |
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131 def packentry(self, entry, node, version, rev): |
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132 if gettype(entry[0]): |
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133 raise RevlogError(_("index entry flags need RevlogNG")) |
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134 e2 = (getoffset(entry[0]), entry[1], entry[3], entry[4], |
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135 node(entry[5]), node(entry[6]), entry[7]) |
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136 return _pack(indexformatv0, *e2) |
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137 |
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138 # index ng: |
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139 # 6 bytes: offset |
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140 # 2 bytes: flags |
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141 # 4 bytes: compressed length |
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142 # 4 bytes: uncompressed length |
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143 # 4 bytes: base rev |
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144 # 4 bytes: link rev |
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145 # 4 bytes: parent 1 rev |
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146 # 4 bytes: parent 2 rev |
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147 # 32 bytes: nodeid |
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148 indexformatng = ">Qiiiiii20s12x" |
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149 ngshaoffset = 32 |
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150 versionformat = ">I" |
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151 |
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152 class revlogio(object): |
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153 def __init__(self): |
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154 self.size = struct.calcsize(indexformatng) |
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155 |
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156 def parseindex(self, data, inline): |
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157 # call the C implementation to parse the index data |
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158 index, cache = parsers.parse_index2(data, inline) |
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159 return index, getattr(index, 'nodemap', None), cache |
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160 |
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161 def packentry(self, entry, node, version, rev): |
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162 p = _pack(indexformatng, *entry) |
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163 if rev == 0: |
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164 p = _pack(versionformat, version) + p[4:] |
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165 return p |
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166 |
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167 class revlog(object): |
1083 | 168 """ |
169 the underlying revision storage object | |
170 | |
171 A revlog consists of two parts, an index and the revision data. | |
172 | |
173 The index is a file with a fixed record size containing | |
6912 | 174 information on each revision, including its nodeid (hash), the |
1083 | 175 nodeids of its parents, the position and offset of its data within |
176 the data file, and the revision it's based on. Finally, each entry | |
177 contains a linkrev entry that can serve as a pointer to external | |
178 data. | |
179 | |
180 The revision data itself is a linear collection of data chunks. | |
181 Each chunk represents a revision and is usually represented as a | |
182 delta against the previous chunk. To bound lookup time, runs of | |
183 deltas are limited to about 2 times the length of the original | |
184 version data. This makes retrieval of a version proportional to | |
185 its size, or O(1) relative to the number of revisions. | |
186 | |
187 Both pieces of the revlog are written to in an append-only | |
188 fashion, which means we never need to rewrite a file to insert or | |
189 remove data, and can use some simple techniques to avoid the need | |
190 for locking while reading. | |
191 """ | |
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192 def __init__(self, opener, indexfile): |
1083 | 193 """ |
194 create a revlog object | |
195 | |
196 opener is a function that abstracts the file opening operation | |
197 and can be used to implement COW semantics or the like. | |
198 """ | |
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199 self.indexfile = indexfile |
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200 self.datafile = indexfile[:-2] + ".d" |
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201 self.opener = opener |
4984 | 202 self._cache = None |
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203 self._basecache = None |
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204 self._chunkcache = (0, '') |
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205 self._chunkcachesize = 65536 |
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206 self.index = [] |
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207 self._pcache = {} |
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208 self._nodecache = {nullid: nullrev} |
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209 self._nodepos = None |
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210 |
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211 v = REVLOG_DEFAULT_VERSION |
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212 opts = getattr(opener, 'options', None) |
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213 if opts is not None: |
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214 if 'revlogv1' in opts: |
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215 if 'generaldelta' in opts: |
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216 v |= REVLOGGENERALDELTA |
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217 else: |
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218 v = 0 |
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219 if 'chunkcachesize' in opts: |
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220 self._chunkcachesize = opts['chunkcachesize'] |
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221 |
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222 if self._chunkcachesize <= 0: |
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223 raise RevlogError(_('revlog chunk cache size %r is not greater ' |
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224 'than 0') % self._chunkcachesize) |
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225 elif self._chunkcachesize & (self._chunkcachesize - 1): |
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226 raise RevlogError(_('revlog chunk cache size %r is not a power ' |
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227 'of 2') % self._chunkcachesize) |
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228 |
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229 i = '' |
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230 self._initempty = True |
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231 try: |
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232 f = self.opener(self.indexfile) |
13253 | 233 i = f.read() |
13400
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explicitly close files
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234 f.close() |
4918
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235 if len(i) > 0: |
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236 v = struct.unpack(versionformat, i[:4])[0] |
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237 self._initempty = False |
1322
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238 except IOError, inst: |
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239 if inst.errno != errno.ENOENT: |
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240 raise |
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241 |
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242 self.version = v |
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243 self._inline = v & REVLOGNGINLINEDATA |
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244 self._generaldelta = v & REVLOGGENERALDELTA |
2073 | 245 flags = v & ~0xFFFF |
246 fmt = v & 0xFFFF | |
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247 if fmt == REVLOGV0 and flags: |
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248 raise RevlogError(_("index %s unknown flags %#04x for format v0") |
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249 % (self.indexfile, flags >> 16)) |
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250 elif fmt == REVLOGNG and flags & ~REVLOGNG_FLAGS: |
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251 raise RevlogError(_("index %s unknown flags %#04x for revlogng") |
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252 % (self.indexfile, flags >> 16)) |
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253 elif fmt > REVLOGNG: |
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254 raise RevlogError(_("index %s unknown format %d") |
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255 % (self.indexfile, fmt)) |
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256 |
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257 self._io = revlogio() |
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258 if self.version == REVLOGV0: |
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259 self._io = revlogoldio() |
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260 try: |
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261 d = self._io.parseindex(i, self._inline) |
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262 except (ValueError, IndexError): |
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263 raise RevlogError(_("index %s is corrupted") % (self.indexfile)) |
13268
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264 self.index, nodemap, self._chunkcache = d |
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265 if nodemap is not None: |
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266 self.nodemap = self._nodecache = nodemap |
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267 if not self._chunkcache: |
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268 self._chunkclear() |
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269 |
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270 def tip(self): |
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271 return self.node(len(self.index) - 2) |
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272 def __len__(self): |
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273 return len(self.index) - 1 |
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274 def __iter__(self): |
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275 return iter(xrange(len(self))) |
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276 def revs(self, start=0, stop=None): |
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277 """iterate over all rev in this revlog (from start to stop)""" |
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278 step = 1 |
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279 if stop is not None: |
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280 if start > stop: |
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281 step = -1 |
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282 stop += step |
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283 else: |
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284 stop = len(self) |
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285 return xrange(start, stop, step) |
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286 |
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287 @util.propertycache |
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288 def nodemap(self): |
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289 self.rev(self.node(0)) |
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290 return self._nodecache |
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291 |
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292 def hasnode(self, node): |
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293 try: |
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294 self.rev(node) |
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295 return True |
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296 except KeyError: |
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297 return False |
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298 |
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299 def clearcaches(self): |
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300 try: |
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301 self._nodecache.clearcaches() |
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302 except AttributeError: |
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303 self._nodecache = {nullid: nullrev} |
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304 self._nodepos = None |
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305 |
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306 def rev(self, node): |
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307 try: |
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308 return self._nodecache[node] |
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309 except RevlogError: |
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310 # parsers.c radix tree lookup failed |
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311 raise LookupError(node, self.indexfile, _('no node')) |
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312 except KeyError: |
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313 # pure python cache lookup failed |
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314 n = self._nodecache |
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315 i = self.index |
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316 p = self._nodepos |
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317 if p is None: |
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318 p = len(i) - 2 |
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319 for r in xrange(p, -1, -1): |
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320 v = i[r][7] |
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321 n[v] = r |
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322 if v == node: |
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323 self._nodepos = r - 1 |
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324 return r |
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325 raise LookupError(node, self.indexfile, _('no node')) |
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326 |
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327 def node(self, rev): |
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328 return self.index[rev][7] |
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329 def linkrev(self, rev): |
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330 return self.index[rev][4] |
2 | 331 def parents(self, node): |
7363 | 332 i = self.index |
333 d = i[self.rev(node)] | |
334 return i[d[5]][7], i[d[6]][7] # map revisions to nodes inline | |
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335 def parentrevs(self, rev): |
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336 return self.index[rev][5:7] |
2072 | 337 def start(self, rev): |
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338 return int(self.index[rev][0] >> 16) |
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339 def end(self, rev): |
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340 return self.start(rev) + self.length(rev) |
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341 def length(self, rev): |
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342 return self.index[rev][1] |
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343 def chainbase(self, rev): |
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344 index = self.index |
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345 base = index[rev][3] |
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346 while base != rev: |
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347 rev = base |
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348 base = index[rev][3] |
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349 return base |
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350 def flags(self, rev): |
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351 return self.index[rev][0] & 0xFFFF |
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352 def rawsize(self, rev): |
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353 """return the length of the uncompressed text for a given revision""" |
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354 l = self.index[rev][2] |
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355 if l >= 0: |
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356 return l |
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357 |
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358 t = self.revision(self.node(rev)) |
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359 return len(t) |
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360 size = rawsize |
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361 |
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362 def ancestors(self, revs, stoprev=0, inclusive=False): |
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363 """Generate the ancestors of 'revs' in reverse topological order. |
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364 Does not generate revs lower than stoprev. |
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365 |
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366 See the documentation for ancestor.lazyancestors for more details.""" |
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367 |
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368 return ancestor.lazyancestors(self, revs, stoprev=stoprev, |
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369 inclusive=inclusive) |
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370 |
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371 def descendants(self, revs): |
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372 """Generate the descendants of 'revs' in revision order. |
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373 |
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374 Yield a sequence of revision numbers starting with a child of |
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375 some rev in revs, i.e., each revision is *not* considered a |
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376 descendant of itself. Results are ordered by revision number (a |
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377 topological sort).""" |
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378 first = min(revs) |
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379 if first == nullrev: |
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380 for i in self: |
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381 yield i |
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382 return |
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383 |
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384 seen = set(revs) |
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385 for i in self.revs(start=first + 1): |
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386 for x in self.parentrevs(i): |
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387 if x != nullrev and x in seen: |
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388 seen.add(i) |
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389 yield i |
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390 break |
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391 |
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392 def findcommonmissing(self, common=None, heads=None): |
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393 """Return a tuple of the ancestors of common and the ancestors of heads |
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394 that are not ancestors of common. In revset terminology, we return the |
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395 tuple: |
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396 |
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397 ::common, (::heads) - (::common) |
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398 |
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399 The list is sorted by revision number, meaning it is |
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400 topologically sorted. |
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401 |
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402 'heads' and 'common' are both lists of node IDs. If heads is |
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403 not supplied, uses all of the revlog's heads. If common is not |
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404 supplied, uses nullid.""" |
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405 if common is None: |
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406 common = [nullid] |
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407 if heads is None: |
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408 heads = self.heads() |
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409 |
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410 common = [self.rev(n) for n in common] |
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411 heads = [self.rev(n) for n in heads] |
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412 |
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413 # we want the ancestors, but inclusive |
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414 class lazyset(object): |
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415 def __init__(self, lazyvalues): |
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416 self.addedvalues = set() |
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417 self.lazyvalues = lazyvalues |
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418 |
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419 def __contains__(self, value): |
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420 return value in self.addedvalues or value in self.lazyvalues |
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421 |
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422 def __iter__(self): |
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423 added = self.addedvalues |
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424 for r in added: |
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425 yield r |
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426 for r in self.lazyvalues: |
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427 if not r in added: |
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428 yield r |
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429 |
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430 def add(self, value): |
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431 self.addedvalues.add(value) |
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432 |
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433 def update(self, values): |
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434 self.addedvalues.update(values) |
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435 |
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436 has = lazyset(self.ancestors(common)) |
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437 has.add(nullrev) |
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438 has.update(common) |
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439 |
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440 # take all ancestors from heads that aren't in has |
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441 missing = set() |
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442 visit = util.deque(r for r in heads if r not in has) |
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443 while visit: |
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444 r = visit.popleft() |
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445 if r in missing: |
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446 continue |
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447 else: |
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448 missing.add(r) |
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449 for p in self.parentrevs(r): |
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450 if p not in has: |
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451 visit.append(p) |
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452 missing = list(missing) |
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453 missing.sort() |
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454 return has, [self.node(r) for r in missing] |
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455 |
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456 def findmissingrevs(self, common=None, heads=None): |
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457 """Return the revision numbers of the ancestors of heads that |
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458 are not ancestors of common. |
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459 |
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460 More specifically, return a list of revision numbers corresponding to |
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461 nodes N such that every N satisfies the following constraints: |
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462 |
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463 1. N is an ancestor of some node in 'heads' |
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464 2. N is not an ancestor of any node in 'common' |
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465 |
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466 The list is sorted by revision number, meaning it is |
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467 topologically sorted. |
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468 |
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469 'heads' and 'common' are both lists of revision numbers. If heads is |
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470 not supplied, uses all of the revlog's heads. If common is not |
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471 supplied, uses nullid.""" |
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472 if common is None: |
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473 common = [nullrev] |
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474 if heads is None: |
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475 heads = self.headrevs() |
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476 |
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477 return ancestor.missingancestors(heads, common, self.parentrevs) |
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478 |
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479 def findmissing(self, common=None, heads=None): |
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480 """Return the ancestors of heads that are not ancestors of common. |
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481 |
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482 More specifically, return a list of nodes N such that every N |
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483 satisfies the following constraints: |
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484 |
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485 1. N is an ancestor of some node in 'heads' |
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486 2. N is not an ancestor of any node in 'common' |
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487 |
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488 The list is sorted by revision number, meaning it is |
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489 topologically sorted. |
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490 |
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491 'heads' and 'common' are both lists of node IDs. If heads is |
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492 not supplied, uses all of the revlog's heads. If common is not |
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493 supplied, uses nullid.""" |
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494 if common is None: |
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495 common = [nullid] |
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496 if heads is None: |
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497 heads = self.heads() |
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498 |
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499 common = [self.rev(n) for n in common] |
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500 heads = [self.rev(n) for n in heads] |
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501 |
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502 return [self.node(r) for r in |
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revlog: switch findmissing to use ancestor.missingancestors
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503 ancestor.missingancestors(heads, common, self.parentrevs)] |
7233
9f0e52e1df77
fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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changeset
|
504 |
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505 def nodesbetween(self, roots=None, heads=None): |
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506 """Return a topological path from 'roots' to 'heads'. |
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507 |
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508 Return a tuple (nodes, outroots, outheads) where 'nodes' is a |
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509 topologically sorted list of all nodes N that satisfy both of |
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510 these constraints: |
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511 |
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512 1. N is a descendant of some node in 'roots' |
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513 2. N is an ancestor of some node in 'heads' |
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514 |
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515 Every node is considered to be both a descendant and an ancestor |
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516 of itself, so every reachable node in 'roots' and 'heads' will be |
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517 included in 'nodes'. |
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518 |
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519 'outroots' is the list of reachable nodes in 'roots', i.e., the |
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520 subset of 'roots' that is returned in 'nodes'. Likewise, |
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changeset
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521 'outheads' is the subset of 'heads' that is also in 'nodes'. |
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522 |
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523 'roots' and 'heads' are both lists of node IDs. If 'roots' is |
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524 unspecified, uses nullid as the only root. If 'heads' is |
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525 unspecified, uses list of all of the revlog's heads.""" |
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Fix to handle case of empty list for roots or heads in nodesbetween.
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526 nonodes = ([], [], []) |
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527 if roots is not None: |
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528 roots = list(roots) |
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529 if not roots: |
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530 return nonodes |
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531 lowestrev = min([self.rev(n) for n in roots]) |
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532 else: |
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check-code: catch misspellings of descendant
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533 roots = [nullid] # Everybody's a descendant of nullid |
3578
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534 lowestrev = nullrev |
3b4e00cba57a
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535 if (lowestrev == nullrev) and (heads is None): |
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536 # We want _all_ the nodes! |
6750
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add __len__ and __iter__ methods to repo and revlog
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parents:
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537 return ([self.node(r) for r in self], [nullid], list(self.heads())) |
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538 if heads is None: |
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539 # All nodes are ancestors, so the latest ancestor is the last |
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540 # node. |
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parents:
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541 highestrev = len(self) - 1 |
1457
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542 # Set ancestors to None to signal that every node is an ancestor. |
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543 ancestors = None |
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544 # Set heads to an empty dictionary for later discovery of heads |
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545 heads = {} |
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546 else: |
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547 heads = list(heads) |
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548 if not heads: |
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549 return nonodes |
8464
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revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8453
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550 ancestors = set() |
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551 # Turn heads into a dictionary so we can remove 'fake' heads. |
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552 # 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
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553 # find from roots. |
14219
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revlog: use real Booleans instead of 0/1 in nodesbetween
Martin Geisler <mg@aragost.com>
parents:
14208
diff
changeset
|
554 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
|
555 # 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
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556 nodestotag = set(heads) |
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557 # Remember where the top was so we can use it as a limit later. |
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558 highestrev = max([self.rev(n) for n in nodestotag]) |
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|
559 while nodestotag: |
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|
560 # grab a node to tag |
518da3c3b6ce
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561 n = nodestotag.pop() |
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|
562 # Never tag nullid |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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changeset
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563 if n == nullid: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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|
564 continue |
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This implements the nodesbetween method, and it removes the newer method
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changeset
|
565 # A node's revision number represents its place in a |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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changeset
|
566 # topologically sorted list of nodes. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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|
567 r = self.rev(n) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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changeset
|
568 if r >= lowestrev: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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|
569 if n not in ancestors: |
14549
48ec0763afbb
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Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
570 # If we are possibly a descendant of one of the roots |
1457
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|
571 # and we haven't already been marked as an ancestor |
8464
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changeset
|
572 ancestors.add(n) # Mark as ancestor |
1457
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|
573 # 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
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changeset
|
574 nodestotag.update([p for p in self.parents(n) if |
1457
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This implements the nodesbetween method, and it removes the newer method
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|
575 p != nullid]) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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changeset
|
576 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
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changeset
|
577 # So it is, real heads should not be the ancestors of |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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changeset
|
578 # any other heads. |
518da3c3b6ce
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|
579 heads.pop(n) |
1459
106fdec8e1fb
Fix small bug in nodesbetween if heads is [nullid].
Eric Hopper <hopper@omnifarious.org>
parents:
1458
diff
changeset
|
580 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
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changeset
|
581 return nonodes |
1457
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582 # 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
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changeset
|
583 # roots that are not ancestors. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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|
584 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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changeset
|
585 # 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
|
586 if lowestrev > nullrev: |
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587 # But, since we weren't, let's recompute the lowest rev to not |
518da3c3b6ce
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|
588 # include roots that aren't ancestors. |
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|
589 |
518da3c3b6ce
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|
590 # Filter out roots that aren't ancestors of heads |
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|
591 roots = [n for n in roots if n in ancestors] |
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|
592 # Recompute the lowest revision |
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|
593 if roots: |
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|
594 lowestrev = min([self.rev(n) for n in roots]) |
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|
595 else: |
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|
596 # No more roots? Return empty list |
1463
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597 return nonodes |
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598 else: |
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|
599 # We are descending from nullid, and don't need to care about |
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|
600 # any other roots. |
3578
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Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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changeset
|
601 lowestrev = nullrev |
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|
602 roots = [nullid] |
8152
08e1baf924ca
replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents:
8150
diff
changeset
|
603 # Transform our roots list into a set. |
14549
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Matt Mackall <mpm@selenic.com>
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changeset
|
604 descendants = set(roots) |
1457
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605 # Also, keep the original roots so we can filter out roots that aren't |
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|
606 # 'real' roots (i.e. are descended from other roots). |
14549
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changeset
|
607 roots = descendants.copy() |
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608 # Our topologically sorted list of output nodes. |
518da3c3b6ce
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|
609 orderedout = [] |
518da3c3b6ce
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changeset
|
610 # Don't start at nullid since we don't want nullid in our output list, |
17483 | 611 # 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
|
612 # 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
|
613 for r in self.revs(start=max(lowestrev, 0), stop=highestrev + 1): |
1457
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This implements the nodesbetween method, and it removes the newer method
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614 n = self.node(r) |
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615 isdescendant = False |
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616 if lowestrev == nullrev: # Everybody is a descendant of nullid |
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617 isdescendant = True |
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618 elif n in descendants: |
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619 # n is already a descendant |
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620 isdescendant = True |
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621 # This check only needs to be done here because all the roots |
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622 # will start being marked is descendants before the loop. |
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623 if n in roots: |
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624 # If n was a root, check if it's a 'real' root. |
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625 p = tuple(self.parents(n)) |
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626 # If any of its parents are descendants, it's not a root. |
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627 if (p[0] in descendants) or (p[1] in descendants): |
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628 roots.remove(n) |
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629 else: |
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630 p = tuple(self.parents(n)) |
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631 # A node is a descendant if either of its parents are |
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632 # descendants. (We seeded the dependents list with the roots |
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633 # up there, remember?) |
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634 if (p[0] in descendants) or (p[1] in descendants): |
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635 descendants.add(n) |
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636 isdescendant = True |
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637 if isdescendant and ((ancestors is None) or (n in ancestors)): |
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638 # Only include nodes that are both descendants and ancestors. |
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639 orderedout.append(n) |
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640 if (ancestors is not None) and (n in heads): |
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641 # We're trying to figure out which heads are reachable |
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642 # from roots. |
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643 # Mark this head as having been reached |
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644 heads[n] = True |
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645 elif ancestors is None: |
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646 # Otherwise, we're trying to discover the heads. |
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647 # Assume this is a head because if it isn't, the next step |
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648 # will eventually remove it. |
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649 heads[n] = True |
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650 # But, obviously its parents aren't. |
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651 for p in self.parents(n): |
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652 heads.pop(p, None) |
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653 heads = [n for n, flag in heads.iteritems() if flag] |
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654 roots = list(roots) |
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655 assert orderedout |
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656 assert roots |
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657 assert heads |
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658 return (orderedout, roots, heads) |
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659 |
14164
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660 def headrevs(self): |
16786
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661 try: |
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662 return self.index.headrevs() |
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663 except AttributeError: |
17674
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|
664 return self._headrevs() |
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|
665 |
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666 def _headrevs(self): |
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667 count = len(self) |
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668 if not count: |
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669 return [nullrev] |
17673
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670 # we won't iter over filtered rev so nobody is a head at start |
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671 ishead = [0] * (count + 1) |
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672 index = self.index |
17672
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673 for r in self: |
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674 ishead[r] = 1 # I may be an head |
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675 e = index[r] |
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676 ishead[e[5]] = ishead[e[6]] = 0 # my parent are not |
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677 return [r for r, val in enumerate(ishead) if val] |
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|
678 |
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679 def heads(self, start=None, stop=None): |
1550
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680 """return the list of all nodes that have no children |
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|
681 |
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682 if start is specified, only heads that are descendants of |
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683 start will be returned |
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684 if stop is specified, it will consider all the revs from stop |
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|
685 as if they had no children |
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686 """ |
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|
687 if start is None and stop is None: |
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688 if not len(self): |
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689 return [nullid] |
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690 return [self.node(r) for r in self.headrevs()] |
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|
691 |
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|
692 if start is None: |
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|
693 start = nullid |
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694 if stop is None: |
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|
695 stop = [] |
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696 stoprevs = set([self.rev(n) for n in stop]) |
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697 startrev = self.rev(start) |
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698 reachable = set((startrev,)) |
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|
699 heads = set((startrev,)) |
1083 | 700 |
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Change revlog.heads to walk the revision graph using revision numbers
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|
701 parentrevs = self.parentrevs |
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|
702 for r in self.revs(start=startrev + 1): |
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|
703 for p in parentrevs(r): |
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Change revlog.heads to walk the revision graph using revision numbers
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|
704 if p in reachable: |
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|
705 if r not in stoprevs: |
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|
706 reachable.add(r) |
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|
707 heads.add(r) |
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|
708 if p in heads and p not in stoprevs: |
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changeset
|
709 heads.remove(p) |
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|
710 |
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Change revlog.heads to walk the revision graph using revision numbers
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changeset
|
711 return [self.node(r) for r in heads] |
370 | 712 |
713 def children(self, node): | |
1083 | 714 """find the children of a given node""" |
370 | 715 c = [] |
716 p = self.rev(node) | |
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|
717 for r in self.revs(start=p + 1): |
4746
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Fix revlog.children so the real children of the null revision can be calculated.
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changeset
|
718 prevs = [pr for pr in self.parentrevs(r) if pr != nullrev] |
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diff
changeset
|
719 if prevs: |
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
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diff
changeset
|
720 for pr in prevs: |
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Fix revlog.children so the real children of the null revision can be calculated.
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changeset
|
721 if pr == p: |
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
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changeset
|
722 c.append(self.node(r)) |
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changeset
|
723 elif p == nullrev: |
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
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diff
changeset
|
724 c.append(self.node(r)) |
370 | 725 return c |
515 | 726 |
10897
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10404
diff
changeset
|
727 def descendant(self, start, end): |
12949
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changeset
|
728 if start == nullrev: |
6878eaa5a40d
revlog: if start is nullrev, end is always a descendant
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diff
changeset
|
729 return True |
16867
1093ad1e8903
revlog: descendants(*revs) becomes descendants(revs) (API)
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parents:
16866
diff
changeset
|
730 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
|
731 if i == end: |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
732 return True |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
733 elif i > end: |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
734 break |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
735 return False |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
736 |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
737 def ancestor(self, a, b): |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
738 """calculate the least common ancestor of nodes a and b""" |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
739 |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
740 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
|
741 try: |
5bae936764bb
parsers: a C implementation of the new ancestors algorithm
Bryan O'Sullivan <bryano@fb.com>
parents:
18987
diff
changeset
|
742 ancs = self.index.ancestors(a, b) |
5bae936764bb
parsers: a C implementation of the new ancestors algorithm
Bryan O'Sullivan <bryano@fb.com>
parents:
18987
diff
changeset
|
743 except (AttributeError, OverflowError): |
5bae936764bb
parsers: a C implementation of the new ancestors algorithm
Bryan O'Sullivan <bryano@fb.com>
parents:
18987
diff
changeset
|
744 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
|
745 if ancs: |
3605d4e7e618
revlog: choose a consistent ancestor when there's a tie
Bryan O'Sullivan <bryano@fb.com>
parents:
18986
diff
changeset
|
746 # choose a consistent winner when there's a tie |
3605d4e7e618
revlog: choose a consistent ancestor when there's a tie
Bryan O'Sullivan <bryano@fb.com>
parents:
18986
diff
changeset
|
747 return min(map(self.node, ancs)) |
3605d4e7e618
revlog: choose a consistent ancestor when there's a tie
Bryan O'Sullivan <bryano@fb.com>
parents:
18986
diff
changeset
|
748 return nullid |
10897
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
749 |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
750 def _match(self, id): |
16762
93f8b9565257
revlog: don't handle long for revision matching
Matt Mackall <mpm@selenic.com>
parents:
16686
diff
changeset
|
751 if isinstance(id, int): |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
752 # 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
|
753 return self.node(id) |
3438 | 754 if len(id) == 20: |
755 # possibly a binary node | |
756 # odds of a binary node being all hex in ASCII are 1 in 10**25 | |
757 try: | |
758 node = id | |
7874
d812029cda85
cleanup: drop variables for unused return values
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
7873
diff
changeset
|
759 self.rev(node) # quick search the index |
3438 | 760 return node |
3930
01d98d68d697
Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
parents:
3928
diff
changeset
|
761 except LookupError: |
3438 | 762 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
|
763 try: |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
764 # str(rev) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
765 rev = int(id) |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
766 if str(rev) != id: |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
767 raise ValueError |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
768 if rev < 0: |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
769 rev = len(self) + rev |
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
770 if rev < 0 or rev >= len(self): |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
771 raise ValueError |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
772 return self.node(rev) |
469 | 773 except (ValueError, OverflowError): |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
774 pass |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
775 if len(id) == 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
776 try: |
3438 | 777 # a full hex nodeid? |
778 node = bin(id) | |
7874
d812029cda85
cleanup: drop variables for unused return values
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
7873
diff
changeset
|
779 self.rev(node) |
3157
4fe41a9e4591
optimize revlog.lookup when passed hex(node)[:...]
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3156
diff
changeset
|
780 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
|
781 except (TypeError, LookupError): |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
782 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
783 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
784 def _partialmatch(self, id): |
16665
e410be860393
revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents:
16533
diff
changeset
|
785 try: |
19471
fd1bb7c1be78
revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents:
19326
diff
changeset
|
786 n = self.index.partialmatch(id) |
fd1bb7c1be78
revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents:
19326
diff
changeset
|
787 if n and self.hasnode(n): |
fd1bb7c1be78
revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents:
19326
diff
changeset
|
788 return n |
fd1bb7c1be78
revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents:
19326
diff
changeset
|
789 return None |
16665
e410be860393
revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents:
16533
diff
changeset
|
790 except RevlogError: |
e410be860393
revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents:
16533
diff
changeset
|
791 # 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
|
792 # 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
|
793 pass |
16665
e410be860393
revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents:
16533
diff
changeset
|
794 except (AttributeError, ValueError): |
e410be860393
revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents:
16533
diff
changeset
|
795 # 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
|
796 pass |
e410be860393
revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents:
16533
diff
changeset
|
797 |
13258
c2661863f16f
revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents:
13254
diff
changeset
|
798 if id in self._pcache: |
c2661863f16f
revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents:
13254
diff
changeset
|
799 return self._pcache[id] |
c2661863f16f
revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents:
13254
diff
changeset
|
800 |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
801 if len(id) < 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
802 try: |
3438 | 803 # hex(node)[:...] |
9029
0001e49f1c11
compat: use // for integer division
Alejandro Santos <alejolp@alejolp.com>
parents:
8658
diff
changeset
|
804 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
|
805 prefix = bin(id[:l * 2]) |
3b616dfa4b17
revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents:
13258
diff
changeset
|
806 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
|
807 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
|
808 self.hasnode(n)] |
7365
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
809 if len(nl) > 0: |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
810 if len(nl) == 1: |
13258
c2661863f16f
revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents:
13254
diff
changeset
|
811 self._pcache[id] = nl[0] |
7365
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
812 return nl[0] |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
813 raise LookupError(id, self.indexfile, |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
814 _('ambiguous identifier')) |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
815 return None |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
816 except TypeError: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
817 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
818 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
819 def lookup(self, id): |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
820 """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
|
821 - 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
|
822 - 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
|
823 """ |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
824 n = self._match(id) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
825 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
|
826 return n |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
827 n = self._partialmatch(id) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
828 if n: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
829 return n |
515 | 830 |
6228
c0c4c7b1e8d3
revlog: report node and file when lookup fails
Matt Mackall <mpm@selenic.com>
parents:
6212
diff
changeset
|
831 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
|
832 |
2890
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
833 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
|
834 """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
|
835 |
a463e3c50212
cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
11323
diff
changeset
|
836 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
|
837 """ |
2890
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
838 p1, p2 = self.parents(node) |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
839 return hash(text, p1, p2) != node |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
840 |
8316
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
841 def _addchunk(self, offset, data): |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
842 o, d = self._chunkcache |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
843 # try to add to existing cache |
13253 | 844 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
|
845 self._chunkcache = o, d + data |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
846 else: |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
847 self._chunkcache = offset, data |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
848 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
849 def _loadchunk(self, offset, length): |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
850 if self._inline: |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
851 df = self.opener(self.indexfile) |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
852 else: |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
853 df = self.opener(self.datafile) |
8316
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
854 |
20179
5bb3826bdac4
revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents:
20074
diff
changeset
|
855 # 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
|
856 # 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
|
857 # 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
|
858 cachesize = self._chunkcachesize |
969148b49fc6
revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents:
20179
diff
changeset
|
859 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
|
860 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
|
861 - realoffset) |
20179
5bb3826bdac4
revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents:
20074
diff
changeset
|
862 df.seek(realoffset) |
5bb3826bdac4
revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents:
20074
diff
changeset
|
863 d = df.read(reallength) |
15407
ee112eb69d2a
misc: adding missing file close() calls
Matt Mackall <mpm@selenic.com>
parents:
15057
diff
changeset
|
864 df.close() |
20179
5bb3826bdac4
revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents:
20074
diff
changeset
|
865 self._addchunk(realoffset, d) |
5bb3826bdac4
revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents:
20074
diff
changeset
|
866 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
|
867 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
|
868 return d |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
869 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
870 def _getchunk(self, offset, length): |
8316
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
871 o, d = self._chunkcache |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
872 l = len(d) |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
873 |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
874 # is it in the cache? |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
875 cachestart = offset - o |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
876 cacheend = cachestart + length |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
877 if cachestart >= 0 and cacheend <= l: |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
878 if cachestart == 0 and cacheend == l: |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
879 return d # avoid a copy |
16423
a150923b49ba
revlog: avoid an expensive string copy
Bryan O'Sullivan <bryano@fb.com>
parents:
16418
diff
changeset
|
880 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
|
881 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
882 return self._loadchunk(offset, length) |
8316
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
883 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
884 def _chunkraw(self, startrev, endrev): |
8318
6b8513f8274a
revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents:
8317
diff
changeset
|
885 start = self.start(startrev) |
19714
0e07c0b5fb1c
revlog.revision: fix cache preload for inline revlogs
Siddharth Agarwal <sid0@fb.com>
parents:
19713
diff
changeset
|
886 end = self.end(endrev) |
8318
6b8513f8274a
revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents:
8317
diff
changeset
|
887 if self._inline: |
6b8513f8274a
revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents:
8317
diff
changeset
|
888 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
|
889 end += (endrev + 1) * self._io.size |
0e07c0b5fb1c
revlog.revision: fix cache preload for inline revlogs
Siddharth Agarwal <sid0@fb.com>
parents:
19713
diff
changeset
|
890 length = end - start |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
891 return self._getchunk(start, length) |
8318
6b8513f8274a
revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents:
8317
diff
changeset
|
892 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
893 def _chunk(self, rev): |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
894 return decompress(self._chunkraw(rev, rev)) |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
895 |
19713
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
896 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
|
897 '''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
|
898 |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
899 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
|
900 if not revs: |
e17976978ee4
revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19715
diff
changeset
|
901 return [] |
19713
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
902 start = self.start |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
903 length = self.length |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
904 inline = self._inline |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
905 iosize = self._io.size |
19715
1aab406be57c
revlog._chunks: inline getchunk
Siddharth Agarwal <sid0@fb.com>
parents:
19714
diff
changeset
|
906 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
|
907 |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
908 l = [] |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
909 ladd = l.append |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
910 |
19716
e17976978ee4
revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19715
diff
changeset
|
911 # preload the cache |
e17976978ee4
revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19715
diff
changeset
|
912 self._chunkraw(revs[0], revs[-1]) |
19715
1aab406be57c
revlog._chunks: inline getchunk
Siddharth Agarwal <sid0@fb.com>
parents:
19714
diff
changeset
|
913 offset, data = self._chunkcache |
1aab406be57c
revlog._chunks: inline getchunk
Siddharth Agarwal <sid0@fb.com>
parents:
19714
diff
changeset
|
914 |
19713
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
915 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
|
916 chunkstart = start(rev) |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
917 if inline: |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
918 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
|
919 chunklength = length(rev) |
19715
1aab406be57c
revlog._chunks: inline getchunk
Siddharth Agarwal <sid0@fb.com>
parents:
19714
diff
changeset
|
920 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
|
921 |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
922 return l |
14075
bc101902a68d
revlog: introduce _chunkbase to allow filelog to override
Sune Foldager <cryo@cyanite.org>
parents:
14064
diff
changeset
|
923 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
924 def _chunkclear(self): |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
925 self._chunkcache = (0, '') |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
926 |
11929
1839a7518b0d
revlog: deltachain() returns chain of revs need to construct a revision
Pradeepkumar Gayam <in3xes@gmail.com>
parents:
11928
diff
changeset
|
927 def deltaparent(self, rev): |
14195
0013d3eeb826
revlog: remove support for parentdelta
Sune Foldager <cryo@cyanite.org>
parents:
14164
diff
changeset
|
928 """return deltaparent of the given revision""" |
14253
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
929 base = self.index[rev][3] |
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
930 if base == rev: |
14208
d62d597b8974
revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents:
14196
diff
changeset
|
931 return nullrev |
14253
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
932 elif self._generaldelta: |
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
933 return base |
14208
d62d597b8974
revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents:
14196
diff
changeset
|
934 else: |
d62d597b8974
revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents:
14196
diff
changeset
|
935 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
|
936 |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
937 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
|
938 """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
|
939 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
|
940 return str(self._chunk(rev2)) |
5005
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
5004
diff
changeset
|
941 |
16424
ff63d71ac8ab
revlog: drop some unneeded rev.node calls in revdiff
Matt Mackall <mpm@selenic.com>
parents:
16423
diff
changeset
|
942 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
|
943 self.revision(rev2)) |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
944 |
16375
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
945 def revision(self, nodeorrev): |
16435
df347129305d
revlog: fix partial revision() docstring (from d7d64b89a65c)
Patrick Mezard <patrick@mezard.eu>
parents:
16424
diff
changeset
|
946 """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
|
947 number. |
df347129305d
revlog: fix partial revision() docstring (from d7d64b89a65c)
Patrick Mezard <patrick@mezard.eu>
parents:
16424
diff
changeset
|
948 """ |
16375
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
949 if isinstance(nodeorrev, int): |
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
950 rev = nodeorrev |
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
951 node = self.node(rev) |
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
952 else: |
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
953 node = nodeorrev |
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
954 rev = None |
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
955 |
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
|
956 cachedrev = None |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
957 if node == nullid: |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
958 return "" |
11930
12547cedc264
revlog: teach revlog to construct a revision from parentdeltas
Pradeepkumar Gayam <in3xes@gmail.com>
parents:
11929
diff
changeset
|
959 if self._cache: |
12547cedc264
revlog: teach revlog to construct a revision from parentdeltas
Pradeepkumar Gayam <in3xes@gmail.com>
parents:
11929
diff
changeset
|
960 if self._cache[0] == node: |
12547cedc264
revlog: teach revlog to construct a revision from parentdeltas
Pradeepkumar Gayam <in3xes@gmail.com>
parents:
11929
diff
changeset
|
961 return self._cache[2] |
11995
ff84cd2bdfaf
revlog.revision(): minor cleanup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11963
diff
changeset
|
962 cachedrev = self._cache[1] |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
963 |
1083 | 964 # look up what we need to read |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
965 text = None |
16375
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
966 if rev is None: |
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
967 rev = self.rev(node) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
968 |
5004
825516d16b25
revlog: move flag checking out of the offset fastpath
Matt Mackall <mpm@selenic.com>
parents:
4996
diff
changeset
|
969 # check rev flags |
11745
138c055ec57d
revlog: add punched revision flag
Vishakh H <vsh426@gmail.com>
parents:
11693
diff
changeset
|
970 if self.flags(rev) & ~REVIDX_KNOWN_FLAGS: |
5312
fb070713ff36
revlog: more robust for damaged indexes
Matt Mackall <mpm@selenic.com>
parents:
5007
diff
changeset
|
971 raise RevlogError(_('incompatible revision flag %x') % |
11745
138c055ec57d
revlog: add punched revision flag
Vishakh H <vsh426@gmail.com>
parents:
11693
diff
changeset
|
972 (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
|
973 |
11995
ff84cd2bdfaf
revlog.revision(): minor cleanup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11963
diff
changeset
|
974 # build delta chain |
11998
e789a811c21d
revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11997
diff
changeset
|
975 chain = [] |
14252
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
976 index = self.index # for performance |
14253
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
977 generaldelta = self._generaldelta |
11998
e789a811c21d
revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11997
diff
changeset
|
978 iterrev = rev |
14252
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
979 e = index[iterrev] |
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
980 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
|
981 chain.append(iterrev) |
14253
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
982 if generaldelta: |
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
983 iterrev = e[3] |
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
984 else: |
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
985 iterrev -= 1 |
14252
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
986 e = index[iterrev] |
11995
ff84cd2bdfaf
revlog.revision(): minor cleanup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11963
diff
changeset
|
987 |
11998
e789a811c21d
revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11997
diff
changeset
|
988 if iterrev == cachedrev: |
e789a811c21d
revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11997
diff
changeset
|
989 # cache hit |
9420
d0db168136dc
manifest/revlog: do not let the revlog cache mutable objects
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
9029
diff
changeset
|
990 text = self._cache[2] |
19716
e17976978ee4
revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19715
diff
changeset
|
991 else: |
e17976978ee4
revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19715
diff
changeset
|
992 chain.append(iterrev) |
e17976978ee4
revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19715
diff
changeset
|
993 chain.reverse() |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
994 |
11754
6ccd130eab0e
revlog: drop cache after use to save memory footprint
Matt Mackall <mpm@selenic.com>
parents:
11539
diff
changeset
|
995 # drop cache to save memory |
6ccd130eab0e
revlog: drop cache after use to save memory footprint
Matt Mackall <mpm@selenic.com>
parents:
11539
diff
changeset
|
996 self._cache = None |
6ccd130eab0e
revlog: drop cache after use to save memory footprint
Matt Mackall <mpm@selenic.com>
parents:
11539
diff
changeset
|
997 |
19716
e17976978ee4
revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19715
diff
changeset
|
998 bins = self._chunks(chain) |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
999 if text is None: |
19716
e17976978ee4
revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19715
diff
changeset
|
1000 text = str(bins[0]) |
e17976978ee4
revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19715
diff
changeset
|
1001 bins = bins[1:] |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
1002 |
4989
1aaed3d69772
revlog: eliminate diff and patches functions
Matt Mackall <mpm@selenic.com>
parents:
4988
diff
changeset
|
1003 text = mdiff.patches(text, bins) |
13239
12ed25f39d0b
revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents:
13031
diff
changeset
|
1004 |
13276
ba6a63339f7c
revlog: pass rev to _checkhash
Matt Mackall <mpm@selenic.com>
parents:
13275
diff
changeset
|
1005 text = self._checkhash(text, node, rev) |
13239
12ed25f39d0b
revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents:
13031
diff
changeset
|
1006 |
12ed25f39d0b
revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents:
13031
diff
changeset
|
1007 self._cache = (node, rev, text) |
12ed25f39d0b
revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents:
13031
diff
changeset
|
1008 return text |
12ed25f39d0b
revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents:
13031
diff
changeset
|
1009 |
13276
ba6a63339f7c
revlog: pass rev to _checkhash
Matt Mackall <mpm@selenic.com>
parents:
13275
diff
changeset
|
1010 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
|
1011 p1, p2 = self.parents(node) |
19624
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1012 self.checkhash(text, p1, p2, node, rev) |
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1013 return text |
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1014 |
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1015 def checkhash(self, text, p1, p2, node, rev=None): |
14196
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
1016 if node != hash(text, p1, p2): |
19624
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1017 revornode = rev |
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1018 if revornode is None: |
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1019 revornode = templatefilters.short(hex(node)) |
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1020 raise RevlogError(_("integrity check failed on %s:%s") |
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1021 % (self.indexfile, revornode)) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1022 |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
1023 def checkinlinesize(self, tr, fp=None): |
10913
f2ecc5733c89
revlog: factor out _maxinline global.
Greg Ward <greg-hg@gerg.ca>
parents:
10404
diff
changeset
|
1024 if not self._inline or (self.start(-2) + self.length(-2)) < _maxinline: |
2073 | 1025 return |
8315
c8493310ad9b
revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents:
8314
diff
changeset
|
1026 |
2084 | 1027 trinfo = tr.find(self.indexfile) |
8527
f9a80054dd3c
use 'x is None' instead of 'x == None'
Martin Geisler <mg@lazybytes.net>
parents:
8464
diff
changeset
|
1028 if trinfo is None: |
3680
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
1029 raise RevlogError(_("%s not found in the transaction") |
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
1030 % self.indexfile) |
2084 | 1031 |
1032 trindex = trinfo[2] | |
1033 dataoff = self.start(trindex) | |
1034 | |
1035 tr.add(self.datafile, dataoff) | |
8315
c8493310ad9b
revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents:
8314
diff
changeset
|
1036 |
8317
5cdf4067857a
revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents:
8316
diff
changeset
|
1037 if fp: |
5cdf4067857a
revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents:
8316
diff
changeset
|
1038 fp.flush() |
5cdf4067857a
revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents:
8316
diff
changeset
|
1039 fp.close() |
8315
c8493310ad9b
revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents:
8314
diff
changeset
|
1040 |
2073 | 1041 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
|
1042 try: |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1043 for r in self: |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
1044 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
|
1045 finally: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1046 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
|
1047 |
2076
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
1048 fp = self.opener(self.indexfile, 'w', atomictemp=True) |
2073 | 1049 self.version &= ~(REVLOGNGINLINEDATA) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1050 self._inline = False |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1051 for i in self: |
5338
f87685355c9c
revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5325
diff
changeset
|
1052 e = self._io.packentry(self.index[i], self.node, self.version, i) |
2073 | 1053 fp.write(e) |
1054 | |
15057
774da7121fc9
atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents:
14960
diff
changeset
|
1055 # 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
|
1056 # real index |
15057
774da7121fc9
atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents:
14960
diff
changeset
|
1057 fp.close() |
2084 | 1058 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
1059 tr.replace(self.indexfile, trindex * self._io.size) |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
1060 self._chunkclear() |
2073 | 1061 |
19625
6a411a06cb1f
revlog: pass node as an argument of addrevision
Wojciech Lopata <lopek@fb.com>
parents:
19624
diff
changeset
|
1062 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
|
1063 node=None): |
1083 | 1064 """add a revision to the log |
1065 | |
1066 text - the revision data to add | |
1067 transaction - the transaction object used for rollback | |
1068 link - the linkrev data to add | |
1069 p1, p2 - the parent nodeids of the revision | |
12012
bade7a9c5c07
revlog: fix docstring
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12011
diff
changeset
|
1070 cachedelta - an optional precomputed delta |
19625
6a411a06cb1f
revlog: pass node as an argument of addrevision
Wojciech Lopata <lopek@fb.com>
parents:
19624
diff
changeset
|
1071 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
|
1072 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
|
1073 use different hashing method (and override checkhash() in such case) |
1083 | 1074 """ |
19326
7014526d67a8
revlog: add exception when linkrev == nullrev
Durham Goode <durham@fb.com>
parents:
19200
diff
changeset
|
1075 if link == nullrev: |
7014526d67a8
revlog: add exception when linkrev == nullrev
Durham Goode <durham@fb.com>
parents:
19200
diff
changeset
|
1076 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
|
1077 % self.indexfile) |
19625
6a411a06cb1f
revlog: pass node as an argument of addrevision
Wojciech Lopata <lopek@fb.com>
parents:
19624
diff
changeset
|
1078 node = node or hash(text, p1, p2) |
14196
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
1079 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
|
1080 return node |
44c22dc193a4
revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12012
diff
changeset
|
1081 |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1082 dfh = None |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1083 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
|
1084 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
|
1085 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
|
1086 try: |
12023
44c22dc193a4
revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12012
diff
changeset
|
1087 return self._addrevision(node, text, transaction, link, p1, p2, |
11962
5f7ee3db3dd8
revlog._addrevision(): make the parent of the cached delta explicit
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11935
diff
changeset
|
1088 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
|
1089 finally: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1090 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
|
1091 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
|
1092 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
|
1093 |
17128
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1094 def compress(self, text): |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1095 """ generate a possibly-compressed representation of text """ |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1096 if not text: |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1097 return ("", text) |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1098 l = len(text) |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1099 bin = None |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1100 if l < 44: |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1101 pass |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1102 elif l > 1000000: |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1103 # 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
|
1104 # large files, so lets do this in pieces |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1105 z = zlib.compressobj() |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1106 p = [] |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1107 pos = 0 |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1108 while pos < l: |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1109 pos2 = pos + 2**20 |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1110 p.append(z.compress(text[pos:pos2])) |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1111 pos = pos2 |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1112 p.append(z.flush()) |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1113 if sum(map(len, p)) < l: |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1114 bin = "".join(p) |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1115 else: |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1116 bin = _compress(text) |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1117 if bin is None or len(bin) > l: |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1118 if text[0] == '\0': |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1119 return ("", text) |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1120 return ('u', text) |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1121 return ("", bin) |
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1122 |
12023
44c22dc193a4
revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12012
diff
changeset
|
1123 def _addrevision(self, node, text, transaction, link, p1, p2, |
11962
5f7ee3db3dd8
revlog._addrevision(): make the parent of the cached delta explicit
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11935
diff
changeset
|
1124 cachedelta, ifh, dfh): |
14292
c97d8485b5fa
revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents:
14270
diff
changeset
|
1125 """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
|
1126 |
14292
c97d8485b5fa
revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents:
14270
diff
changeset
|
1127 see addrevision for argument descriptions. |
c97d8485b5fa
revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents:
14270
diff
changeset
|
1128 invariants: |
c97d8485b5fa
revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents:
14270
diff
changeset
|
1129 - 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
|
1130 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
|
1131 """ |
12886
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
1132 btext = [text] |
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
1133 def buildtext(): |
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
1134 if btext[0] is not None: |
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
1135 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
|
1136 # 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
|
1137 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
|
1138 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
|
1139 ifh.flush() |
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
1140 basetext = self.revision(self.node(cachedelta[0])) |
12886
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
1141 btext[0] = mdiff.patch(basetext, cachedelta[1]) |
19624
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1142 self.checkhash(btext[0], p1, p2, node) |
12886
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
1143 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
|
1144 |
12888
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1145 def builddelta(rev): |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1146 # can we use the cached delta? |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1147 if cachedelta and cachedelta[0] == rev: |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1148 delta = cachedelta[1] |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1149 else: |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1150 t = buildtext() |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1151 ptext = self.revision(self.node(rev)) |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1152 delta = mdiff.textdiff(ptext, t) |
17128
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1153 data = self.compress(delta) |
12888
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1154 l = len(data[1]) + len(data[0]) |
14296
62e25c63fb3a
revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents:
14292
diff
changeset
|
1155 if basecache[0] == rev: |
14270
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1156 chainbase = basecache[1] |
14252
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
1157 else: |
14270
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1158 chainbase = self.chainbase(rev) |
17150 | 1159 dist = l + offset - self.start(chainbase) |
14270
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1160 if self._generaldelta: |
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1161 base = rev |
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1162 else: |
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1163 base = chainbase |
14296
62e25c63fb3a
revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents:
14292
diff
changeset
|
1164 return dist, l, data, base, chainbase |
12888
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1165 |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1166 curr = len(self) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1167 prev = curr - 1 |
14296
62e25c63fb3a
revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents:
14292
diff
changeset
|
1168 base = chainbase = curr |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1169 offset = self.end(prev) |
11931
6051db1327f8
revlog: append delta against p1
Pradeepkumar Gayam <in3xes@gmail.com>
parents:
11930
diff
changeset
|
1170 flags = 0 |
11962
5f7ee3db3dd8
revlog._addrevision(): make the parent of the cached delta explicit
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11935
diff
changeset
|
1171 d = None |
19764
e92650e39f1c
generaldelta: initialize basecache properly
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1172 if self._basecache is None: |
e92650e39f1c
generaldelta: initialize basecache properly
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1173 self._basecache = (prev, self.chainbase(prev)) |
14296
62e25c63fb3a
revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents:
14292
diff
changeset
|
1174 basecache = self._basecache |
12889
5482c6b826f4
revlog: precalculate p1 and p2 revisions
Matt Mackall <mpm@selenic.com>
parents:
12888
diff
changeset
|
1175 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
|
1176 |
11963
7c3aa579d98a
parendelta: fix computation of base rev (fixes issue2337)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11962
diff
changeset
|
1177 # 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
|
1178 if prev != nullrev: |
14270
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1179 if self._generaldelta: |
14301
f94993769c87
revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents:
14296
diff
changeset
|
1180 if p1r >= basecache[1]: |
f94993769c87
revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents:
14296
diff
changeset
|
1181 d = builddelta(p1r) |
f94993769c87
revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents:
14296
diff
changeset
|
1182 elif p2r >= basecache[1]: |
f94993769c87
revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents:
14296
diff
changeset
|
1183 d = builddelta(p2r) |
f94993769c87
revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents:
14296
diff
changeset
|
1184 else: |
f94993769c87
revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents:
14296
diff
changeset
|
1185 d = builddelta(prev) |
14270
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1186 else: |
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1187 d = builddelta(prev) |
14296
62e25c63fb3a
revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents:
14292
diff
changeset
|
1188 dist, l, data, base, chainbase = d |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1189 |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1190 # full versions are inserted when the needed deltas |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1191 # 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
|
1192 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
|
1193 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
|
1194 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
|
1195 else: |
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
1196 textlen = len(text) |
14196
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
1197 if d is None or dist > textlen * 2: |
12886
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
1198 text = buildtext() |
17128
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1199 data = self.compress(text) |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1200 l = len(data[1]) + len(data[0]) |
14296
62e25c63fb3a
revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents:
14292
diff
changeset
|
1201 base = chainbase = curr |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1202 |
12623
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
1203 e = (offset_type(offset, flags), l, textlen, |
12889
5482c6b826f4
revlog: precalculate p1 and p2 revisions
Matt Mackall <mpm@selenic.com>
parents:
12888
diff
changeset
|
1204 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
|
1205 self.index.insert(-1, e) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1206 self.nodemap[node] = curr |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1207 |
5338
f87685355c9c
revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5325
diff
changeset
|
1208 entry = self._io.packentry(e, self.node, self.version, curr) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1209 if not self._inline: |
2073 | 1210 transaction.add(self.datafile, offset) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1211 transaction.add(self.indexfile, curr * len(entry)) |
2073 | 1212 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
|
1213 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
|
1214 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
|
1215 dfh.flush() |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1216 ifh.write(entry) |
2073 | 1217 else: |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1218 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
|
1219 transaction.add(self.indexfile, offset, curr) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1220 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
|
1221 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
|
1222 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
|
1223 self.checkinlinesize(transaction, ifh) |
2073 | 1224 |
9420
d0db168136dc
manifest/revlog: do not let the revlog cache mutable objects
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
9029
diff
changeset
|
1225 if type(text) == str: # only accept immutable objects |
d0db168136dc
manifest/revlog: do not let the revlog cache mutable objects
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
9029
diff
changeset
|
1226 self._cache = (node, curr, text) |
14296
62e25c63fb3a
revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents:
14292
diff
changeset
|
1227 self._basecache = (curr, chainbase) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1228 return node |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1229 |
12335
e21fe9c5fb25
bundle: get rid of chunkiter
Matt Mackall <mpm@selenic.com>
parents:
12025
diff
changeset
|
1230 def addgroup(self, bundle, linkmapper, transaction): |
1083 | 1231 """ |
1232 add a delta group | |
46 | 1233 |
1083 | 1234 given a set of deltas, add them to the revision log. the |
1235 first delta is against its parent, which should be in our | |
1236 log, the rest are against the previous delta. | |
1237 """ | |
1238 | |
12624
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1239 # 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
|
1240 content = [] |
2002
4aab906517c6
Calling revlog.addgroup with an empty changegroup now raises RevlogError.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1981
diff
changeset
|
1241 node = None |
515 | 1242 |
12624
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1243 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
|
1244 end = 0 |
46 | 1245 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
|
1246 end = self.end(r - 1) |
2072 | 1247 ifh = self.opener(self.indexfile, "a+") |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1248 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
|
1249 if self._inline: |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1250 transaction.add(self.indexfile, end + isize, r) |
2073 | 1251 dfh = None |
1252 else: | |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1253 transaction.add(self.indexfile, isize, r) |
2073 | 1254 transaction.add(self.datafile, end) |
1255 dfh = self.opener(self.datafile, "a") | |
46 | 1256 |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1257 try: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1258 # 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
|
1259 chain = None |
14494
1ffeeb91c55d
check-code: flag 0/1 used as constant Boolean expression
Martin Geisler <mg@lazybytes.net>
parents:
14393
diff
changeset
|
1260 while True: |
14144
3c3c53d8343a
unbundler: separate delta and header parsing
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14143
diff
changeset
|
1261 chunkdata = bundle.deltachunk(chain) |
12336
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1262 if not chunkdata: |
12335
e21fe9c5fb25
bundle: get rid of chunkiter
Matt Mackall <mpm@selenic.com>
parents:
12025
diff
changeset
|
1263 break |
12336
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1264 node = chunkdata['node'] |
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1265 p1 = chunkdata['p1'] |
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1266 p2 = chunkdata['p2'] |
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1267 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
|
1268 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
|
1269 delta = chunkdata['delta'] |
12336
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1270 |
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
|
1271 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
|
1272 |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1273 link = linkmapper(cs) |
14196
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
1274 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
|
1275 # 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
|
1276 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
|
1277 continue |
192 | 1278 |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1279 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
|
1280 if p not in self.nodemap: |
14196
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
1281 raise LookupError(p, self.indexfile, |
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
1282 _('unknown parent')) |
46 | 1283 |
14141
bd1cbfe5db5c
bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14075
diff
changeset
|
1284 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
|
1285 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
|
1286 _('unknown delta base')) |
46 | 1287 |
14141
bd1cbfe5db5c
bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14075
diff
changeset
|
1288 baserev = self.rev(deltabase) |
12624
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1289 chain = self._addrevision(node, None, transaction, link, |
14141
bd1cbfe5db5c
bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14075
diff
changeset
|
1290 p1, p2, (baserev, delta), 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
|
1291 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
|
1292 # 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
|
1293 # reopen the index |
13400
14f3795a5ed7
explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents:
13284
diff
changeset
|
1294 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
|
1295 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
|
1296 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
|
1297 finally: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1298 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
|
1299 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
|
1300 ifh.close() |
46 | 1301 |
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
|
1302 return content |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1303 |
20074
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1304 def getstrippoint(self, minlink): |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1305 """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
|
1306 |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1307 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
|
1308 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
|
1309 """ |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1310 brokenrevs = set() |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1311 strippoint = len(self) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1312 |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1313 heads = {} |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1314 futurelargelinkrevs = set() |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1315 for head in self.headrevs(): |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1316 headlinkrev = self.linkrev(head) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1317 heads[head] = headlinkrev |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1318 if headlinkrev >= minlink: |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1319 futurelargelinkrevs.add(headlinkrev) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1320 |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1321 # 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
|
1322 # 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
|
1323 # 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
|
1324 # 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
|
1325 # So we can stop walking. |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1326 while futurelargelinkrevs: |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1327 strippoint -= 1 |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1328 linkrev = heads.pop(strippoint) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1329 |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1330 if linkrev < minlink: |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1331 brokenrevs.add(strippoint) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1332 else: |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1333 futurelargelinkrevs.remove(linkrev) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1334 |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1335 for p in self.parentrevs(strippoint): |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1336 if p != nullrev: |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1337 plinkrev = self.linkrev(p) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1338 heads[p] = plinkrev |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1339 if plinkrev >= minlink: |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1340 futurelargelinkrevs.add(plinkrev) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1341 |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1342 return strippoint, brokenrevs |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1343 |
8073
e8a28556a0a8
strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents:
8017
diff
changeset
|
1344 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
|
1345 """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
|
1346 |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1347 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
|
1348 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
|
1349 |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1350 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
|
1351 the equivalent changelog revisions will be renumbered after the |
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1352 strip. |
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1353 |
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1354 So we truncate the revlog on the first of these revisions, and |
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1355 trust that the caller has saved the revisions that shouldn't be |
15827
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1356 removed and that it'll re-add them after this truncation. |
5910
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1357 """ |
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1358 if len(self) == 0: |
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1359 return |
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1360 |
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1361 rev, _ = self.getstrippoint(minlink) |
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1362 if rev == len(self): |
5909
f45f7390c1c5
strip: calculate list of extra nodes to save and pass it to changegroupsubset
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1363 return |
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1364 |
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1365 # first truncate the files on disk |
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1366 end = self.start(rev) |
4982
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1367 if not self._inline: |
8073
e8a28556a0a8
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1368 transaction.add(self.datafile, end) |
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1369 end = rev * self._io.size |
2073 | 1370 else: |
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1371 end += rev * self._io.size |
2072 | 1372 |
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1373 transaction.add(self.indexfile, end) |
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1374 |
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1375 # then reset internal state in memory to forget those revisions |
4984 | 1376 self._cache = None |
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1377 self._chunkclear() |
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1378 for x in xrange(rev, len(self)): |
2072 | 1379 del self.nodemap[self.node(x)] |
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1380 |
4979
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1381 del self.index[rev:-1] |
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1382 |
1493
1a216cb4ee64
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1383 def checksize(self): |
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1384 expected = 0 |
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1385 if len(self): |
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1386 expected = max(0, self.end(len(self) - 1)) |
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1387 |
1494
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1388 try: |
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1389 f = self.opener(self.datafile) |
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1390 f.seek(0, 2) |
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1391 actual = f.tell() |
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1392 f.close() |
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1393 dd = actual - expected |
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1394 except IOError, inst: |
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1395 if inst.errno != errno.ENOENT: |
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1396 raise |
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1397 dd = 0 |
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1398 |
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1399 try: |
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1400 f = self.opener(self.indexfile) |
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1401 f.seek(0, 2) |
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1402 actual = f.tell() |
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1403 f.close() |
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1404 s = self._io.size |
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1405 i = max(0, actual // s) |
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1406 di = actual - (i * s) |
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1407 if self._inline: |
2073 | 1408 databytes = 0 |
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1409 for r in self: |
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1410 databytes += max(0, self.length(r)) |
2073 | 1411 dd = 0 |
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1412 di = actual - len(self) * s - databytes |
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1413 except IOError, inst: |
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1414 if inst.errno != errno.ENOENT: |
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1415 raise |
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1416 di = 0 |
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1417 |
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1418 return (dd, di) |
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1419 |
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1420 def files(self): |
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1421 res = [self.indexfile] |
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1422 if not self._inline: |
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1423 res.append(self.datafile) |
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1424 return res |