mercurial-scm/hg-stable: mercurial/revlog.py annotate

annotate mercurial/revlog.py @ 4978:93d48a8fa496

revlog: change accesses to index entry elements to use positive offsets

author	Matt Mackall <mpm@selenic.com>
date	Mon, 23 Jul 2007 20:44:08 -0500
parents	6cb30bc4ca32
children	06abdaf78788

rev	line source
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1 """
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	2 revlog.py - storage back-end for mercurial
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	3
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	4 This provides efficient delta storage with O(1) retrieve and append
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	5 and O(changes) merge between branches
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	6
4635 63b9d2deed48 Updated copyright notices and add "and others" to "hg version" Thomas Arendsen Hein <thomas@intevation.de> parents: 4497 diff changeset	7 Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	8
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	9 This software may be used and distributed according to the terms
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	10 of the GNU General Public License, incorporated herein by reference.
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	11 """
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	12
1089 142b5d5ec9cc Break apart hg.py mpm@selenic.com parents: 1083 diff changeset	13 from node import *
3891 6b4127c7d52a Simplify i18n imports Matt Mackall <mpm@selenic.com> parents: 3877 diff changeset	14 from i18n import _
3877 abaee83ce0a6 Replace demandload with new demandimport Matt Mackall <mpm@selenic.com> parents: 3755 diff changeset	15 import binascii, changegroup, errno, ancestor, mdiff, os
abaee83ce0a6 Replace demandload with new demandimport Matt Mackall <mpm@selenic.com> parents: 3755 diff changeset	16 import sha, struct, util, zlib
36 da28286bf6b7 Add smart node lookup by substring or by rev number mpm@selenic.com parents: 26 diff changeset	17
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	18 # revlog version strings
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	19 REVLOGV0 = 0
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	20 REVLOGNG = 1
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	21
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	22 # revlog flags
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	23 REVLOGNGINLINEDATA = (1 << 16)
2222 c9e264b115e6 Use revlogng and inlined data files by default mason@suse.com parents: 2177 diff changeset	24 REVLOG_DEFAULT_FLAGS = REVLOGNGINLINEDATA
c9e264b115e6 Use revlogng and inlined data files by default mason@suse.com parents: 2177 diff changeset	25
c9e264b115e6 Use revlogng and inlined data files by default mason@suse.com parents: 2177 diff changeset	26 REVLOG_DEFAULT_FORMAT = REVLOGNG
c9e264b115e6 Use revlogng and inlined data files by default mason@suse.com parents: 2177 diff changeset	27 REVLOG_DEFAULT_VERSION = REVLOG_DEFAULT_FORMAT \| REVLOG_DEFAULT_FLAGS
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	28
1091 d62130f99a73 Move hash function back to revlog from node mpm@selenic.com parents: 1089 diff changeset	29 def hash(text, p1, p2):
d62130f99a73 Move hash function back to revlog from node mpm@selenic.com parents: 1089 diff changeset	30 """generate a hash from the given text and its parent hashes
d62130f99a73 Move hash function back to revlog from node mpm@selenic.com parents: 1089 diff changeset	31
d62130f99a73 Move hash function back to revlog from node mpm@selenic.com parents: 1089 diff changeset	32 This hash combines both the current file contents and its history
d62130f99a73 Move hash function back to revlog from node mpm@selenic.com parents: 1089 diff changeset	33 in a manner that makes it easy to distinguish nodes with the same
d62130f99a73 Move hash function back to revlog from node mpm@selenic.com parents: 1089 diff changeset	34 content in the revision graph.
d62130f99a73 Move hash function back to revlog from node mpm@selenic.com parents: 1089 diff changeset	35 """
d62130f99a73 Move hash function back to revlog from node mpm@selenic.com parents: 1089 diff changeset	36 l = [p1, p2]
d62130f99a73 Move hash function back to revlog from node mpm@selenic.com parents: 1089 diff changeset	37 l.sort()
d62130f99a73 Move hash function back to revlog from node mpm@selenic.com parents: 1089 diff changeset	38 s = sha.new(l[0])
d62130f99a73 Move hash function back to revlog from node mpm@selenic.com parents: 1089 diff changeset	39 s.update(l[1])
d62130f99a73 Move hash function back to revlog from node mpm@selenic.com parents: 1089 diff changeset	40 s.update(text)
d62130f99a73 Move hash function back to revlog from node mpm@selenic.com parents: 1089 diff changeset	41 return s.digest()
d62130f99a73 Move hash function back to revlog from node mpm@selenic.com parents: 1089 diff changeset	42
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	43 def compress(text):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	44 """ generate a possibly-compressed representation of text """
1533 3d11f81c9145 Reduce string duplication in compression code mason@suse.com parents: 1509 diff changeset	45 if not text: return ("", text)
112 aea6562add6c Make compression more intelligent: mpm@selenic.com parents: 98 diff changeset	46 if len(text) < 44:
1533 3d11f81c9145 Reduce string duplication in compression code mason@suse.com parents: 1509 diff changeset	47 if text[0] == '\0': return ("", text)
3d11f81c9145 Reduce string duplication in compression code mason@suse.com parents: 1509 diff changeset	48 return ('u', text)
112 aea6562add6c Make compression more intelligent: mpm@selenic.com parents: 98 diff changeset	49 bin = zlib.compress(text)
aea6562add6c Make compression more intelligent: mpm@selenic.com parents: 98 diff changeset	50 if len(bin) > len(text):
1533 3d11f81c9145 Reduce string duplication in compression code mason@suse.com parents: 1509 diff changeset	51 if text[0] == '\0': return ("", text)
3d11f81c9145 Reduce string duplication in compression code mason@suse.com parents: 1509 diff changeset	52 return ('u', text)
3d11f81c9145 Reduce string duplication in compression code mason@suse.com parents: 1509 diff changeset	53 return ("", bin)
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	54
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	55 def decompress(bin):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	56 """ decompress the given input """
112 aea6562add6c Make compression more intelligent: mpm@selenic.com parents: 98 diff changeset	57 if not bin: return bin
aea6562add6c Make compression more intelligent: mpm@selenic.com parents: 98 diff changeset	58 t = bin[0]
aea6562add6c Make compression more intelligent: mpm@selenic.com parents: 98 diff changeset	59 if t == '\0': return bin
aea6562add6c Make compression more intelligent: mpm@selenic.com parents: 98 diff changeset	60 if t == 'x': return zlib.decompress(bin)
aea6562add6c Make compression more intelligent: mpm@selenic.com parents: 98 diff changeset	61 if t == 'u': return bin[1:]
1853 5ac811b720de Fix some problems when working on broken repositories: Thomas Arendsen Hein <thomas@intevation.de> parents: 1784 diff changeset	62 raise RevlogError(_("unknown compression type %r") % t)
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	63
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	64 indexformatv0 = ">4l20s20s20s"
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	65 v0shaoffset = 56
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	66 # index ng:
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	67 # 6 bytes offset
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	68 # 2 bytes flags
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	69 # 4 bytes compressed length
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	70 # 4 bytes uncompressed length
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	71 # 4 bytes: base rev
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	72 # 4 bytes link rev
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	73 # 4 bytes parent 1 rev
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	74 # 4 bytes parent 2 rev
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	75 # 32 bytes: nodeid
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	76 indexformatng = ">Qiiiiii20s12x"
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	77 ngshaoffset = 32
3755 05120e210c65 Use unsigned version format. Thomas Arendsen Hein <thomas@intevation.de> parents: 3754 diff changeset	78 versionformat = ">I"
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	79
1559 59b3639df0a9 Convert all classes to new-style classes by deriving them from object. Eric Hopper <hopper@omnifarious.org> parents: 1551 diff changeset	80 class lazyparser(object):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	81 """
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	82 this class avoids the need to parse the entirety of large indices
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	83 """
2250 45aef5ddcdbe windows: revlog.lazyparser not always safe to use. Vadim Gelfer <vadim.gelfer@gmail.com> parents: 2222 diff changeset	84
45aef5ddcdbe windows: revlog.lazyparser not always safe to use. Vadim Gelfer <vadim.gelfer@gmail.com> parents: 2222 diff changeset	85 # lazyparser is not safe to use on windows if win32 extensions not
45aef5ddcdbe windows: revlog.lazyparser not always safe to use. Vadim Gelfer <vadim.gelfer@gmail.com> parents: 2222 diff changeset	86 # available. it keeps file handle open, which make it not possible
45aef5ddcdbe windows: revlog.lazyparser not always safe to use. Vadim Gelfer <vadim.gelfer@gmail.com> parents: 2222 diff changeset	87 # to break hardlinks on local cloned repos.
45aef5ddcdbe windows: revlog.lazyparser not always safe to use. Vadim Gelfer <vadim.gelfer@gmail.com> parents: 2222 diff changeset	88 safe_to_use = os.name != 'nt' or (not util.is_win_9x() and
45aef5ddcdbe windows: revlog.lazyparser not always safe to use. Vadim Gelfer <vadim.gelfer@gmail.com> parents: 2222 diff changeset	89 hasattr(util, 'win32api'))
45aef5ddcdbe windows: revlog.lazyparser not always safe to use. Vadim Gelfer <vadim.gelfer@gmail.com> parents: 2222 diff changeset	90
4976 79c39cc9ff69 revlog: only allow lazy parsing with revlogng files Matt Mackall <mpm@selenic.com> parents: 4975 diff changeset	91 def __init__(self, dataf, size):
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	92 self.dataf = dataf
4976 79c39cc9ff69 revlog: only allow lazy parsing with revlogng files Matt Mackall <mpm@selenic.com> parents: 4975 diff changeset	93 self.s = struct.calcsize(indexformatng)
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	94 self.datasize = size
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	95 self.l = size/self.s
76 d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	96 self.index = [None] * self.l
3578 3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1. Thomas Arendsen Hein <thomas@intevation.de> parents: 3508 diff changeset	97 self.map = {nullid: nullrev}
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	98 self.allmap = 0
323 c6f0673ab7e9 lazyparser speed ups mpm@selenic.com parents: 306 diff changeset	99 self.all = 0
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	100 self.mapfind_count = 0
76 d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	101
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	102 def loadmap(self):
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	103 """
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	104 during a commit, we need to make sure the rev being added is
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	105 not a duplicate. This requires loading the entire index,
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	106 which is fairly slow. loadmap can load up just the node map,
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	107 which takes much less time.
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	108 """
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	109 if self.allmap: return
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	110 end = self.datasize
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	111 self.allmap = 1
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	112 cur = 0
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	113 count = 0
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	114 blocksize = self.s * 256
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	115 self.dataf.seek(0)
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	116 while cur < end:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	117 data = self.dataf.read(blocksize)
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	118 off = 0
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	119 for x in xrange(256):
4976 79c39cc9ff69 revlog: only allow lazy parsing with revlogng files Matt Mackall <mpm@selenic.com> parents: 4975 diff changeset	120 n = data[off + ngshaoffset:off + ngshaoffset + 20]
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	121 self.map[n] = count
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	122 count += 1
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	123 if count >= self.l:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	124 break
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	125 off += self.s
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	126 cur += blocksize
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	127
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	128 def loadblock(self, blockstart, blocksize, data=None):
323 c6f0673ab7e9 lazyparser speed ups mpm@selenic.com parents: 306 diff changeset	129 if self.all: return
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	130 if data is None:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	131 self.dataf.seek(blockstart)
3078 baa3873eb387 don't let lazyparser read more data than it can handle Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 2890 diff changeset	132 if blockstart + blocksize > self.datasize:
baa3873eb387 don't let lazyparser read more data than it can handle Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 2890 diff changeset	133 # the revlog may have grown since we've started running,
baa3873eb387 don't let lazyparser read more data than it can handle Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 2890 diff changeset	134 # but we don't have space in self.index for more entries.
baa3873eb387 don't let lazyparser read more data than it can handle Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 2890 diff changeset	135 # limit blocksize so that we don't get too much data.
3089 e7fc04dc6349 Avoid negative block sizes in lazyparser. Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 3078 diff changeset	136 blocksize = max(self.datasize - blockstart, 0)
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	137 data = self.dataf.read(blocksize)
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	138 lend = len(data) / self.s
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	139 i = blockstart / self.s
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	140 off = 0
4061 40030c1b6bc6 lazyindex: handle __delitem__ in loadblock Brendan Cully <brendan@kublai.com> parents: 3930 diff changeset	141 # lazyindex supports __delitem__
40030c1b6bc6 lazyindex: handle __delitem__ in loadblock Brendan Cully <brendan@kublai.com> parents: 3930 diff changeset	142 if lend > len(self.index) - i:
40030c1b6bc6 lazyindex: handle __delitem__ in loadblock Brendan Cully <brendan@kublai.com> parents: 3930 diff changeset	143 lend = len(self.index) - i
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	144 for x in xrange(lend):
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	145 if self.index[i + x] == None:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	146 b = data[off : off + self.s]
2080 1cbb14c048cb Reduce index memory usage by storing the bare string instead of tuples mason@suse.com parents: 2079 diff changeset	147 self.index[i + x] = b
4976 79c39cc9ff69 revlog: only allow lazy parsing with revlogng files Matt Mackall <mpm@selenic.com> parents: 4975 diff changeset	148 n = b[ngshaoffset:ngshaoffset + 20]
2080 1cbb14c048cb Reduce index memory usage by storing the bare string instead of tuples mason@suse.com parents: 2079 diff changeset	149 self.map[n] = i + x
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	150 off += self.s
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	151
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	152 def findnode(self, node):
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	153 """search backwards through the index file for a specific node"""
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	154 if self.allmap: return None
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	155
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	156 # hg log will cause many many searches for the manifest
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	157 # nodes. After we get called a few times, just load the whole
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	158 # thing.
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	159 if self.mapfind_count > 8:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	160 self.loadmap()
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	161 if node in self.map:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	162 return node
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	163 return None
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	164 self.mapfind_count += 1
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	165 last = self.l - 1
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	166 while self.index[last] != None:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	167 if last == 0:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	168 self.all = 1
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	169 self.allmap = 1
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	170 return None
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	171 last -= 1
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	172 end = (last + 1) * self.s
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	173 blocksize = self.s * 256
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	174 while end >= 0:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	175 start = max(end - blocksize, 0)
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	176 self.dataf.seek(start)
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	177 data = self.dataf.read(end - start)
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	178 findend = end - start
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	179 while True:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	180 # we're searching backwards, so weh have to make sure
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	181 # we don't find a changeset where this node is a parent
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	182 off = data.rfind(node, 0, findend)
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	183 findend = off
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	184 if off >= 0:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	185 i = off / self.s
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	186 off = i * self.s
4976 79c39cc9ff69 revlog: only allow lazy parsing with revlogng files Matt Mackall <mpm@selenic.com> parents: 4975 diff changeset	187 n = data[off + ngshaoffset:off + ngshaoffset + 20]
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	188 if n == node:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	189 self.map[n] = i + start / self.s
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	190 return node
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	191 else:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	192 break
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	193 end -= blocksize
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	194 return None
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	195
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	196 def loadindex(self, i=None, end=None):
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	197 if self.all: return
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	198 all = False
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	199 if i == None:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	200 blockstart = 0
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	201 blocksize = (512 / self.s) * self.s
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	202 end = self.datasize
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	203 all = True
323 c6f0673ab7e9 lazyparser speed ups mpm@selenic.com parents: 306 diff changeset	204 else:
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	205 if end:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	206 blockstart = i * self.s
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	207 end = end * self.s
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	208 blocksize = end - blockstart
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	209 else:
4314 43dedce9667e revlog.py: fix/tweak read ahead code in lazyparser Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 4215 diff changeset	210 blockstart = (i & ~63) * self.s
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	211 blocksize = self.s * 64
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	212 end = blockstart + blocksize
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	213 while blockstart < end:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	214 self.loadblock(blockstart, blocksize)
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	215 blockstart += blocksize
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	216 if all: self.all = True
515 03f27b1381f9 Whitespace cleanups mpm@selenic.com parents: 484 diff changeset	217
1559 59b3639df0a9 Convert all classes to new-style classes by deriving them from object. Eric Hopper <hopper@omnifarious.org> parents: 1551 diff changeset	218 class lazyindex(object):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	219 """a lazy version of the index array"""
76 d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	220 def __init__(self, parser):
d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	221 self.p = parser
d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	222 def __len__(self):
d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	223 return len(self.p.index)
115 39b438eeb25a Make lazyindex load slightly faster mpm@selenic.com parents: 112 diff changeset	224 def load(self, pos):
1403 bc3e66edb04c lazyindex fix, make load handle negative indexes properly. Eric Hopper <hopper@omnifarious.org> parents: 1402 diff changeset	225 if pos < 0:
bc3e66edb04c lazyindex fix, make load handle negative indexes properly. Eric Hopper <hopper@omnifarious.org> parents: 1402 diff changeset	226 pos += len(self.p.index)
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	227 self.p.loadindex(pos)
115 39b438eeb25a Make lazyindex load slightly faster mpm@selenic.com parents: 112 diff changeset	228 return self.p.index[pos]
76 d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	229 def __getitem__(self, pos):
2080 1cbb14c048cb Reduce index memory usage by storing the bare string instead of tuples mason@suse.com parents: 2079 diff changeset	230 ret = self.p.index[pos] or self.load(pos)
1cbb14c048cb Reduce index memory usage by storing the bare string instead of tuples mason@suse.com parents: 2079 diff changeset	231 if isinstance(ret, str):
4976 79c39cc9ff69 revlog: only allow lazy parsing with revlogng files Matt Mackall <mpm@selenic.com> parents: 4975 diff changeset	232 ret = struct.unpack(indexformatng, ret)
2080 1cbb14c048cb Reduce index memory usage by storing the bare string instead of tuples mason@suse.com parents: 2079 diff changeset	233 return ret
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	234 def __setitem__(self, pos, item):
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	235 self.p.index[pos] = item
1535 7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	236 def __delitem__(self, pos):
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	237 del self.p.index[pos]
76 d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	238 def append(self, e):
d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	239 self.p.index.append(e)
515 03f27b1381f9 Whitespace cleanups mpm@selenic.com parents: 484 diff changeset	240
1559 59b3639df0a9 Convert all classes to new-style classes by deriving them from object. Eric Hopper <hopper@omnifarious.org> parents: 1551 diff changeset	241 class lazymap(object):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	242 """a lazy version of the node map"""
76 d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	243 def __init__(self, parser):
d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	244 self.p = parser
d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	245 def load(self, key):
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	246 n = self.p.findnode(key)
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	247 if n == None:
1214 34706a835d4a Smarter handling of revlog key errors mpm@selenic.com parents: 1201 diff changeset	248 raise KeyError(key)
76 d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	249 def __contains__(self, key):
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	250 if key in self.p.map:
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	251 return True
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	252 self.p.loadmap()
323 c6f0673ab7e9 lazyparser speed ups mpm@selenic.com parents: 306 diff changeset	253 return key in self.p.map
97 7a2abee6b0c2 Add iterator to the lazymap code mpm@selenic.com parents: 94 diff changeset	254 def __iter__(self):
469 e205194ca7ef Various node id lookup tweaks mpm@selenic.com parents: 451 diff changeset	255 yield nullid
97 7a2abee6b0c2 Add iterator to the lazymap code mpm@selenic.com parents: 94 diff changeset	256 for i in xrange(self.p.l):
2080 1cbb14c048cb Reduce index memory usage by storing the bare string instead of tuples mason@suse.com parents: 2079 diff changeset	257 ret = self.p.index[i]
1cbb14c048cb Reduce index memory usage by storing the bare string instead of tuples mason@suse.com parents: 2079 diff changeset	258 if not ret:
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	259 self.p.loadindex(i)
2080 1cbb14c048cb Reduce index memory usage by storing the bare string instead of tuples mason@suse.com parents: 2079 diff changeset	260 ret = self.p.index[i]
1cbb14c048cb Reduce index memory usage by storing the bare string instead of tuples mason@suse.com parents: 2079 diff changeset	261 if isinstance(ret, str):
4976 79c39cc9ff69 revlog: only allow lazy parsing with revlogng files Matt Mackall <mpm@selenic.com> parents: 4975 diff changeset	262 ret = struct.unpack(indexformatng, ret)
4978 93d48a8fa496 revlog: change accesses to index entry elements to use positive offsets Matt Mackall <mpm@selenic.com> parents: 4977 diff changeset	263 yield ret[7]
76 d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	264 def __getitem__(self, key):
d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	265 try:
d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	266 return self.p.map[key]
d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	267 except KeyError:
86 1b945e8ba67b Friendlier exceptions for unknown node errors mpm@selenic.com parents: 84 diff changeset	268 try:
1b945e8ba67b Friendlier exceptions for unknown node errors mpm@selenic.com parents: 84 diff changeset	269 self.load(key)
1b945e8ba67b Friendlier exceptions for unknown node errors mpm@selenic.com parents: 84 diff changeset	270 return self.p.map[key]
1b945e8ba67b Friendlier exceptions for unknown node errors mpm@selenic.com parents: 84 diff changeset	271 except KeyError:
1b945e8ba67b Friendlier exceptions for unknown node errors mpm@selenic.com parents: 84 diff changeset	272 raise KeyError("node " + hex(key))
76 d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	273 def __setitem__(self, key, val):
d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	274 self.p.map[key] = val
1535 7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	275 def __delitem__(self, key):
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	276 del self.p.map[key]
76 d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	277
1073 7b35a980b982 [PATCH] raise exceptions with Exception subclasses Bart Trojanowski <bart@jukie.net> parents: 1062 diff changeset	278 class RevlogError(Exception): pass
3930 01d98d68d697 Add revlog.LookupError exception, and use it instead of RevlogError. Brendan Cully <brendan@kublai.com> parents: 3928 diff changeset	279 class LookupError(RevlogError): pass
1073 7b35a980b982 [PATCH] raise exceptions with Exception subclasses Bart Trojanowski <bart@jukie.net> parents: 1062 diff changeset	280
4918 e017d3a82e1d revlog: raise offset/type helpers to global scope Matt Mackall <mpm@selenic.com> parents: 4746 diff changeset	281 def getoffset(q):
e017d3a82e1d revlog: raise offset/type helpers to global scope Matt Mackall <mpm@selenic.com> parents: 4746 diff changeset	282 if q & 0xFFFF:
e017d3a82e1d revlog: raise offset/type helpers to global scope Matt Mackall <mpm@selenic.com> parents: 4746 diff changeset	283 raise RevlogError(_('incompatible revision flag %x') % q)
e017d3a82e1d revlog: raise offset/type helpers to global scope Matt Mackall <mpm@selenic.com> parents: 4746 diff changeset	284 return int(q >> 16)
e017d3a82e1d revlog: raise offset/type helpers to global scope Matt Mackall <mpm@selenic.com> parents: 4746 diff changeset	285
e017d3a82e1d revlog: raise offset/type helpers to global scope Matt Mackall <mpm@selenic.com> parents: 4746 diff changeset	286 def gettype(q):
e017d3a82e1d revlog: raise offset/type helpers to global scope Matt Mackall <mpm@selenic.com> parents: 4746 diff changeset	287 return int(q & 0xFFFF)
e017d3a82e1d revlog: raise offset/type helpers to global scope Matt Mackall <mpm@selenic.com> parents: 4746 diff changeset	288
e017d3a82e1d revlog: raise offset/type helpers to global scope Matt Mackall <mpm@selenic.com> parents: 4746 diff changeset	289 def offset_type(offset, type):
e017d3a82e1d revlog: raise offset/type helpers to global scope Matt Mackall <mpm@selenic.com> parents: 4746 diff changeset	290 return long(long(offset) << 16 \| type)
e017d3a82e1d revlog: raise offset/type helpers to global scope Matt Mackall <mpm@selenic.com> parents: 4746 diff changeset	291
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	292 class revlogoldio(object):
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	293 def __init__(self):
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	294 self.chunkcache = None
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	295 self.size = struct.calcsize(indexformatv0)
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	296
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	297 def parseindex(self, fp, st, inline):
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	298 s = self.size
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	299 index = []
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	300 nodemap = {nullid: nullrev}
4973 a386a6e4fe46 revlog: simplify the v0 parser Matt Mackall <mpm@selenic.com> parents: 4972 diff changeset	301 n = off = 0
a386a6e4fe46 revlog: simplify the v0 parser Matt Mackall <mpm@selenic.com> parents: 4972 diff changeset	302 data = fp.read()
a386a6e4fe46 revlog: simplify the v0 parser Matt Mackall <mpm@selenic.com> parents: 4972 diff changeset	303 l = len(data)
a386a6e4fe46 revlog: simplify the v0 parser Matt Mackall <mpm@selenic.com> parents: 4972 diff changeset	304 while off + s <= l:
a386a6e4fe46 revlog: simplify the v0 parser Matt Mackall <mpm@selenic.com> parents: 4972 diff changeset	305 cur = data[off:off + s]
a386a6e4fe46 revlog: simplify the v0 parser Matt Mackall <mpm@selenic.com> parents: 4972 diff changeset	306 off += s
a386a6e4fe46 revlog: simplify the v0 parser Matt Mackall <mpm@selenic.com> parents: 4972 diff changeset	307 e = struct.unpack(indexformatv0, cur)
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	308 # transform to revlogv1 format
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	309 e2 = (offset_type(e[0], 0), e[1], -1, e[2], e[3],
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	310 nodemap[e[4]], nodemap[e[5]], e[6])
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	311 index.append(e2)
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	312 nodemap[e[6]] = n
4973 a386a6e4fe46 revlog: simplify the v0 parser Matt Mackall <mpm@selenic.com> parents: 4972 diff changeset	313 n += 1
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	314
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	315 return index, nodemap
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	316
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	317 class revlogio(object):
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	318 def __init__(self):
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	319 self.chunkcache = None
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	320 self.size = struct.calcsize(indexformatng)
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	321
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	322 def parseindex(self, fp, st, inline):
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	323 if (lazyparser.safe_to_use and not inline and
4974 a335345100ba revlog: set the threshold for lazy parsing higher Matt Mackall <mpm@selenic.com> parents: 4973 diff changeset	324 st and st.st_size > 1000000):
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	325 # big index, let's parse it on demand
4976 79c39cc9ff69 revlog: only allow lazy parsing with revlogng files Matt Mackall <mpm@selenic.com> parents: 4975 diff changeset	326 parser = lazyparser(fp, st.st_size)
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	327 index = lazyindex(parser)
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	328 nodemap = lazymap(parser)
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	329 e = list(index[0])
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	330 type = gettype(e[0])
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	331 e[0] = offset_type(0, type)
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	332 index[0] = e
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	333 return index, nodemap
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	334
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	335 s = self.size
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	336 index = []
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	337 nodemap = {nullid: nullrev}
4975 8b7e480a7603 revlog: simplify the v1 immediate parser Matt Mackall <mpm@selenic.com> parents: 4974 diff changeset	338 n = off = 0
8b7e480a7603 revlog: simplify the v1 immediate parser Matt Mackall <mpm@selenic.com> parents: 4974 diff changeset	339 # if we're not using lazymap, always read the whole index
8b7e480a7603 revlog: simplify the v1 immediate parser Matt Mackall <mpm@selenic.com> parents: 4974 diff changeset	340 data = fp.read()
8b7e480a7603 revlog: simplify the v1 immediate parser Matt Mackall <mpm@selenic.com> parents: 4974 diff changeset	341 l = len(data)
8b7e480a7603 revlog: simplify the v1 immediate parser Matt Mackall <mpm@selenic.com> parents: 4974 diff changeset	342 if inline:
8b7e480a7603 revlog: simplify the v1 immediate parser Matt Mackall <mpm@selenic.com> parents: 4974 diff changeset	343 self.chunkcache = (0, data)
8b7e480a7603 revlog: simplify the v1 immediate parser Matt Mackall <mpm@selenic.com> parents: 4974 diff changeset	344 while off + s <= l:
8b7e480a7603 revlog: simplify the v1 immediate parser Matt Mackall <mpm@selenic.com> parents: 4974 diff changeset	345 e = struct.unpack(indexformatng, data[off:off + s])
8b7e480a7603 revlog: simplify the v1 immediate parser Matt Mackall <mpm@selenic.com> parents: 4974 diff changeset	346 index.append(e)
4978 93d48a8fa496 revlog: change accesses to index entry elements to use positive offsets Matt Mackall <mpm@selenic.com> parents: 4977 diff changeset	347 nodemap[e[7]] = n
4975 8b7e480a7603 revlog: simplify the v1 immediate parser Matt Mackall <mpm@selenic.com> parents: 4974 diff changeset	348 n += 1
8b7e480a7603 revlog: simplify the v1 immediate parser Matt Mackall <mpm@selenic.com> parents: 4974 diff changeset	349 off += s
8b7e480a7603 revlog: simplify the v1 immediate parser Matt Mackall <mpm@selenic.com> parents: 4974 diff changeset	350 if inline:
8b7e480a7603 revlog: simplify the v1 immediate parser Matt Mackall <mpm@selenic.com> parents: 4974 diff changeset	351 if e[1] < 0:
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	352 break
4975 8b7e480a7603 revlog: simplify the v1 immediate parser Matt Mackall <mpm@selenic.com> parents: 4974 diff changeset	353 off += e[1]
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	354
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	355 e = list(index[0])
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	356 type = gettype(e[0])
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	357 e[0] = offset_type(0, type)
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	358 index[0] = e
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	359
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	360 return index, nodemap
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	361
1559 59b3639df0a9 Convert all classes to new-style classes by deriving them from object. Eric Hopper <hopper@omnifarious.org> parents: 1551 diff changeset	362 class revlog(object):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	363 """
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	364 the underlying revision storage object
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	365
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	366 A revlog consists of two parts, an index and the revision data.
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	367
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	368 The index is a file with a fixed record size containing
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	369 information on each revision, includings its nodeid (hash), the
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	370 nodeids of its parents, the position and offset of its data within
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	371 the data file, and the revision it's based on. Finally, each entry
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	372 contains a linkrev entry that can serve as a pointer to external
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	373 data.
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	374
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	375 The revision data itself is a linear collection of data chunks.
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	376 Each chunk represents a revision and is usually represented as a
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	377 delta against the previous chunk. To bound lookup time, runs of
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	378 deltas are limited to about 2 times the length of the original
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	379 version data. This makes retrieval of a version proportional to
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	380 its size, or O(1) relative to the number of revisions.
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	381
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	382 Both pieces of the revlog are written to in an append-only
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	383 fashion, which means we never need to rewrite a file to insert or
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	384 remove data, and can use some simple techniques to avoid the need
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	385 for locking while reading.
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	386 """
4258 b11a2fb59cf5 revlog: simplify revlog version handling Matt Mackall <mpm@selenic.com> parents: 4257 diff changeset	387 def __init__(self, opener, indexfile):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	388 """
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	389 create a revlog object
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	390
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	391 opener is a function that abstracts the file opening operation
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	392 and can be used to implement COW semantics or the like.
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	393 """
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	394 self.indexfile = indexfile
4257 1b5c38e9d7aa revlog: don't pass datafile as an argument Matt Mackall <mpm@selenic.com> parents: 4224 diff changeset	395 self.datafile = indexfile[:-2] + ".d"
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	396 self.opener = opener
1784 2e0a288ca93e revalidate revlog data after locking the repo (issue132) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1749 diff changeset	397
2e0a288ca93e revalidate revlog data after locking the repo (issue132) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1749 diff changeset	398 self.indexstat = None
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	399 self.cache = None
4277 0ce23256e454 Fixed spacing in assignment of REVLOG_DEFAULT_VERSION Thomas Arendsen Hein <thomas@intevation.de> parents: 4258 diff changeset	400 self.defversion = REVLOG_DEFAULT_VERSION
4258 b11a2fb59cf5 revlog: simplify revlog version handling Matt Mackall <mpm@selenic.com> parents: 4257 diff changeset	401 if hasattr(opener, "defversion"):
b11a2fb59cf5 revlog: simplify revlog version handling Matt Mackall <mpm@selenic.com> parents: 4257 diff changeset	402 self.defversion = opener.defversion
4302 d69bdc1091b8 Fixups for recent changes in revlog version handling Matt Mackall <mpm@selenic.com> parents: 4277 diff changeset	403 if self.defversion & REVLOGNG:
d69bdc1091b8 Fixups for recent changes in revlog version handling Matt Mackall <mpm@selenic.com> parents: 4277 diff changeset	404 self.defversion \|= REVLOGNGINLINEDATA
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	405 self._load()
116 e484cd5ec282 Only use lazy indexing for big indices and avoid the overhead of the mpm@selenic.com parents: 115 diff changeset	406
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	407 def _load(self):
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	408 v = self.defversion
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	409 try:
1784 2e0a288ca93e revalidate revlog data after locking the repo (issue132) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1749 diff changeset	410 f = self.opener(self.indexfile)
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	411 i = f.read(4)
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	412 f.seek(0)
4918 e017d3a82e1d revlog: raise offset/type helpers to global scope Matt Mackall <mpm@selenic.com> parents: 4746 diff changeset	413 if len(i) > 0:
e017d3a82e1d revlog: raise offset/type helpers to global scope Matt Mackall <mpm@selenic.com> parents: 4746 diff changeset	414 v = struct.unpack(versionformat, i)[0]
1322 b3d44e9b3092 Make revlog constructor more discerning in its treatment of errors. Bryan O'Sullivan <bos@serpentine.com> parents: 1232 diff changeset	415 except IOError, inst:
b3d44e9b3092 Make revlog constructor more discerning in its treatment of errors. Bryan O'Sullivan <bos@serpentine.com> parents: 1232 diff changeset	416 if inst.errno != errno.ENOENT:
b3d44e9b3092 Make revlog constructor more discerning in its treatment of errors. Bryan O'Sullivan <bos@serpentine.com> parents: 1232 diff changeset	417 raise
76 d993ebd69d28 Add lazy{parser,index,map} to speed up processing of index files mpm@selenic.com parents: 73 diff changeset	418 i = ""
1784 2e0a288ca93e revalidate revlog data after locking the repo (issue132) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1749 diff changeset	419 else:
2e0a288ca93e revalidate revlog data after locking the repo (issue132) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1749 diff changeset	420 try:
2176 9b42304d9896 fix file handling bugs on windows. Vadim Gelfer <vadim.gelfer@gmail.com> parents: 2089 diff changeset	421 st = util.fstat(f)
1784 2e0a288ca93e revalidate revlog data after locking the repo (issue132) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1749 diff changeset	422 except AttributeError, inst:
2e0a288ca93e revalidate revlog data after locking the repo (issue132) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1749 diff changeset	423 st = None
2e0a288ca93e revalidate revlog data after locking the repo (issue132) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1749 diff changeset	424 else:
2e0a288ca93e revalidate revlog data after locking the repo (issue132) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1749 diff changeset	425 oldst = self.indexstat
2e0a288ca93e revalidate revlog data after locking the repo (issue132) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1749 diff changeset	426 if (oldst and st.st_dev == oldst.st_dev
2e0a288ca93e revalidate revlog data after locking the repo (issue132) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1749 diff changeset	427 and st.st_ino == oldst.st_ino
2e0a288ca93e revalidate revlog data after locking the repo (issue132) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1749 diff changeset	428 and st.st_mtime == oldst.st_mtime
4483 769cc8ef5b72 Also check the index file size when deciding whether to reload a revlog. Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 4314 diff changeset	429 and st.st_ctime == oldst.st_ctime
769cc8ef5b72 Also check the index file size when deciding whether to reload a revlog. Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 4314 diff changeset	430 and st.st_size == oldst.st_size):
1784 2e0a288ca93e revalidate revlog data after locking the repo (issue132) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1749 diff changeset	431 return
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	432 self.indexstat = st
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	433 flags = v & ~0xFFFF
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	434 fmt = v & 0xFFFF
2142 8a1e2a9c7013 Replaced 0 with REVLOGV0 where this meaning is used. Thomas Arendsen Hein <thomas@intevation.de> parents: 2141 diff changeset	435 if fmt == REVLOGV0:
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	436 if flags:
3754 cd25a4a1a265 Improve error message for unknown revlog flags. Thomas Arendsen Hein <thomas@intevation.de> parents: 3743 diff changeset	437 raise RevlogError(_("index %s unknown flags %#04x for format v0")
cd25a4a1a265 Improve error message for unknown revlog flags. Thomas Arendsen Hein <thomas@intevation.de> parents: 3743 diff changeset	438 % (self.indexfile, flags >> 16))
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	439 elif fmt == REVLOGNG:
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	440 if flags & ~REVLOGNGINLINEDATA:
3754 cd25a4a1a265 Improve error message for unknown revlog flags. Thomas Arendsen Hein <thomas@intevation.de> parents: 3743 diff changeset	441 raise RevlogError(_("index %s unknown flags %#04x for revlogng")
cd25a4a1a265 Improve error message for unknown revlog flags. Thomas Arendsen Hein <thomas@intevation.de> parents: 3743 diff changeset	442 % (self.indexfile, flags >> 16))
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	443 else:
3743 3a099154b110 Make revlog error slightly less scary Matt Mackall <mpm@selenic.com> parents: 3683 diff changeset	444 raise RevlogError(_("index %s unknown format %d")
3680 69cf255a55a1 Indentation cleanups for 2956948b81f3. Thomas Arendsen Hein <thomas@intevation.de> parents: 3679 diff changeset	445 % (self.indexfile, fmt))
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	446 self.version = v
4971 3e6dae278c99 revlog: regroup parsing code Matt Mackall <mpm@selenic.com> parents: 4920 diff changeset	447 self.nodemap = {nullid: nullrev}
3e6dae278c99 revlog: regroup parsing code Matt Mackall <mpm@selenic.com> parents: 4920 diff changeset	448 self.index = []
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	449 self._io = revlogio()
4971 3e6dae278c99 revlog: regroup parsing code Matt Mackall <mpm@selenic.com> parents: 4920 diff changeset	450 if self.version == REVLOGV0:
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	451 self._io = revlogoldio()
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	452 if i:
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	453 self.index, self.nodemap = self._io.parseindex(f, st, self._inline())
116 e484cd5ec282 Only use lazy indexing for big indices and avoid the overhead of the mpm@selenic.com parents: 115 diff changeset	454
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	455 def _loadindex(self, start, end):
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	456 """load a block of indexes all at once from the lazy parser"""
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	457 if isinstance(self.index, lazyindex):
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	458 self.index.p.loadindex(start, end)
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	459
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	460 def _loadindexmap(self):
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	461 """loads both the map and the index from the lazy parser"""
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	462 if isinstance(self.index, lazyindex):
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	463 p = self.index.p
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	464 p.loadindex()
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	465 self.nodemap = p.map
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	466
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	467 def _loadmap(self):
2079 ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	468 """loads the map from the lazy parser"""
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	469 if isinstance(self.nodemap, lazymap):
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	470 self.nodemap.p.loadmap()
ee96ca273f32 New lazy index code for revlogs. mason@suse.com parents: 2078 diff changeset	471 self.nodemap = self.nodemap.p.map
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	472
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	473 def _inline(self): return self.version & REVLOGNGINLINEDATA
ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	474
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	475 def tip(self): return self.node(len(self.index) - 1)
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	476 def count(self): return len(self.index)
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	477 def node(self, rev):
4978 93d48a8fa496 revlog: change accesses to index entry elements to use positive offsets Matt Mackall <mpm@selenic.com> parents: 4977 diff changeset	478 return rev == nullrev and nullid or self.index[rev][7]
1201 59bfbdbc38f6 revlog: raise informative exception if file is missing. Bryan O'Sullivan <bos@serpentine.com> parents: 1099 diff changeset	479 def rev(self, node):
59bfbdbc38f6 revlog: raise informative exception if file is missing. Bryan O'Sullivan <bos@serpentine.com> parents: 1099 diff changeset	480 try:
59bfbdbc38f6 revlog: raise informative exception if file is missing. Bryan O'Sullivan <bos@serpentine.com> parents: 1099 diff changeset	481 return self.nodemap[node]
59bfbdbc38f6 revlog: raise informative exception if file is missing. Bryan O'Sullivan <bos@serpentine.com> parents: 1099 diff changeset	482 except KeyError:
3930 01d98d68d697 Add revlog.LookupError exception, and use it instead of RevlogError. Brendan Cully <brendan@kublai.com> parents: 3928 diff changeset	483 raise LookupError(_('%s: no node %s') % (self.indexfile, hex(node)))
2642 6414ee2eb688 correct the handling of linkrev with nullid Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 2641 diff changeset	484 def linkrev(self, node):
4978 93d48a8fa496 revlog: change accesses to index entry elements to use positive offsets Matt Mackall <mpm@selenic.com> parents: 4977 diff changeset	485 return (node == nullid) and nullrev or self.index[self.rev(node)][4]
2 ecf3fd948051 Handle nullid better for ancestor mpm@selenic.com parents: 0 diff changeset	486 def parents(self, node):
ecf3fd948051 Handle nullid better for ancestor mpm@selenic.com parents: 0 diff changeset	487 if node == nullid: return (nullid, nullid)
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	488 r = self.rev(node)
4978 93d48a8fa496 revlog: change accesses to index entry elements to use positive offsets Matt Mackall <mpm@selenic.com> parents: 4977 diff changeset	489 d = self.index[r][5:7]
3508 0aef94f45ebf revlog.py: always return tuples from parents and parentrevs Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 3490 diff changeset	490 return (self.node(d[0]), self.node(d[1]))
2489 568e58eed096 Add revlog.parentrevs function. Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 2354 diff changeset	491 def parentrevs(self, rev):
3578 3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1. Thomas Arendsen Hein <thomas@intevation.de> parents: 3508 diff changeset	492 if rev == nullrev:
3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1. Thomas Arendsen Hein <thomas@intevation.de> parents: 3508 diff changeset	493 return (nullrev, nullrev)
4978 93d48a8fa496 revlog: change accesses to index entry elements to use positive offsets Matt Mackall <mpm@selenic.com> parents: 4977 diff changeset	494 d = self.index[rev][5:7]
2489 568e58eed096 Add revlog.parentrevs function. Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 2354 diff changeset	495 return d
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	496 def start(self, rev):
3585 cac2c17bec5a revlog: more nullrev fixes Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3584 diff changeset	497 if rev == nullrev:
3584 8dbbe4dadb48 revlog: return 0 as offset for nullid Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3582 diff changeset	498 return 0
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	499 return getoffset(self.index[rev][0])
2078 441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	500
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	501 def end(self, rev): return self.start(rev) + self.length(rev)
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	502
2078 441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	503 def size(self, rev):
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	504 """return the length of the uncompressed text for a given revision"""
3582 9fb7d3a05882 revlog.size() fix handling of rev == -1 Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3578 diff changeset	505 if rev == nullrev:
9fb7d3a05882 revlog.size() fix handling of rev == -1 Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3578 diff changeset	506 return 0
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	507 l = self.index[rev][2]
2078 441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	508 if l >= 0:
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	509 return l
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	510
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	511 t = self.revision(self.node(rev))
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	512 return len(t)
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	513
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	514 # alternate implementation, The advantage to this code is it
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	515 # will be faster for a single revision. But, the results are not
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	516 # cached, so finding the size of every revision will be slower.
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	517 """
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	518 if self.cache and self.cache[1] == rev:
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	519 return len(self.cache[2])
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	520
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	521 base = self.base(rev)
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	522 if self.cache and self.cache[1] >= base and self.cache[1] < rev:
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	523 base = self.cache[1]
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	524 text = self.cache[2]
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	525 else:
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	526 text = self.revision(self.node(base))
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	527
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	528 l = len(text)
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	529 for x in xrange(base + 1, rev + 1):
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	530 l = mdiff.patchedsize(l, self.chunk(x))
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	531 return l
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	532 """
441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	533
1941 7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1853 diff changeset	534 def length(self, rev):
3585 cac2c17bec5a revlog: more nullrev fixes Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3584 diff changeset	535 if rev == nullrev:
1941 7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1853 diff changeset	536 return 0
7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1853 diff changeset	537 else:
7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1853 diff changeset	538 return self.index[rev][1]
3585 cac2c17bec5a revlog: more nullrev fixes Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3584 diff changeset	539 def base(self, rev):
cac2c17bec5a revlog: more nullrev fixes Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3584 diff changeset	540 if (rev == nullrev):
cac2c17bec5a revlog: more nullrev fixes Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3584 diff changeset	541 return nullrev
cac2c17bec5a revlog: more nullrev fixes Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3584 diff changeset	542 else:
4978 93d48a8fa496 revlog: change accesses to index entry elements to use positive offsets Matt Mackall <mpm@selenic.com> parents: 4977 diff changeset	543 return self.index[rev][3]
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	544
3630 508036290b00 revlog: reachable actually takes a node Matt Mackall <mpm@selenic.com> parents: 3585 diff changeset	545 def reachable(self, node, stop=None):
3683 b0fd43effdb3 add docstring to reachable Matt Mackall <mpm@selenic.com> parents: 3680 diff changeset	546 """return a hash of all nodes ancestral to a given node, including
b0fd43effdb3 add docstring to reachable Matt Mackall <mpm@selenic.com> parents: 3680 diff changeset	547 the node itself, stopping when stop is matched"""
1074 55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	548 reachable = {}
3630 508036290b00 revlog: reachable actually takes a node Matt Mackall <mpm@selenic.com> parents: 3585 diff changeset	549 visit = [node]
508036290b00 revlog: reachable actually takes a node Matt Mackall <mpm@selenic.com> parents: 3585 diff changeset	550 reachable[node] = 1
1074 55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	551 if stop:
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	552 stopn = self.rev(stop)
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	553 else:
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	554 stopn = 0
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	555 while visit:
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	556 n = visit.pop(0)
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	557 if n == stop:
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	558 continue
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	559 if n == nullid:
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	560 continue
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	561 for p in self.parents(n):
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	562 if self.rev(p) < stopn:
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	563 continue
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	564 if p not in reachable:
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	565 reachable[p] = 1
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	566 visit.append(p)
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	567 return reachable
55bf5cfde69e Add revlog.reachable to find a graph of ancestors for a given rev mason@suse.com parents: 1073 diff changeset	568
1457 518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	569 def nodesbetween(self, roots=None, heads=None):
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	570 """Return a tuple containing three elements. Elements 1 and 2 contain
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	571 a final list bases and heads after all the unreachable ones have been
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	572 pruned. Element 0 contains a topologically sorted list of all
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	573
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	574 nodes that satisfy these constraints:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	575 1. All nodes must be descended from a node in roots (the nodes on
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	576 roots are considered descended from themselves).
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	577 2. All nodes must also be ancestors of a node in heads (the nodes in
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	578 heads are considered to be their own ancestors).
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	579
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	580 If roots is unspecified, nullid is assumed as the only root.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	581 If heads is unspecified, it is taken to be the output of the
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	582 heads method (i.e. a list of all nodes in the repository that
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	583 have no children)."""
1463 26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween. Eric Hopper <hopper@omnifarious.org> parents: 1459 diff changeset	584 nonodes = ([], [], [])
1457 518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	585 if roots is not None:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	586 roots = list(roots)
1463 26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween. Eric Hopper <hopper@omnifarious.org> parents: 1459 diff changeset	587 if not roots:
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween. Eric Hopper <hopper@omnifarious.org> parents: 1459 diff changeset	588 return nonodes
1457 518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	589 lowestrev = min([self.rev(n) for n in roots])
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	590 else:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	591 roots = [nullid] # Everybody's a descendent of nullid
3578 3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1. Thomas Arendsen Hein <thomas@intevation.de> parents: 3508 diff changeset	592 lowestrev = nullrev
3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1. Thomas Arendsen Hein <thomas@intevation.de> parents: 3508 diff changeset	593 if (lowestrev == nullrev) and (heads is None):
1457 518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	594 # We want _all_ the nodes!
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	595 return ([self.node(r) for r in xrange(0, self.count())],
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	596 [nullid], list(self.heads()))
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	597 if heads is None:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	598 # All nodes are ancestors, so the latest ancestor is the last
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	599 # node.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	600 highestrev = self.count() - 1
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	601 # Set ancestors to None to signal that every node is an ancestor.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	602 ancestors = None
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	603 # Set heads to an empty dictionary for later discovery of heads
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	604 heads = {}
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	605 else:
1463 26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween. Eric Hopper <hopper@omnifarious.org> parents: 1459 diff changeset	606 heads = list(heads)
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween. Eric Hopper <hopper@omnifarious.org> parents: 1459 diff changeset	607 if not heads:
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween. Eric Hopper <hopper@omnifarious.org> parents: 1459 diff changeset	608 return nonodes
1457 518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	609 ancestors = {}
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	610 # Turn heads into a dictionary so we can remove 'fake' heads.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	611 # Also, later we will be using it to filter out the heads we can't
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	612 # find from roots.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	613 heads = dict.fromkeys(heads, 0)
3360 ef8307585b41 nodesbetween: fix a bug with duplicate heads Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3335 diff changeset	614 # Start at the top and keep marking parents until we're done.
ef8307585b41 nodesbetween: fix a bug with duplicate heads Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3335 diff changeset	615 nodestotag = heads.keys()
1457 518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	616 # Remember where the top was so we can use it as a limit later.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	617 highestrev = max([self.rev(n) for n in nodestotag])
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	618 while nodestotag:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	619 # grab a node to tag
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	620 n = nodestotag.pop()
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	621 # Never tag nullid
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	622 if n == nullid:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	623 continue
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	624 # A node's revision number represents its place in a
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	625 # topologically sorted list of nodes.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	626 r = self.rev(n)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	627 if r >= lowestrev:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	628 if n not in ancestors:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	629 # If we are possibly a descendent of one of the roots
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	630 # and we haven't already been marked as an ancestor
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	631 ancestors[n] = 1 # Mark as ancestor
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	632 # Add non-nullid parents to list of nodes to tag.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	633 nodestotag.extend([p for p in self.parents(n) if
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	634 p != nullid])
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	635 elif n in heads: # We've seen it before, is it a fake head?
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	636 # So it is, real heads should not be the ancestors of
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	637 # any other heads.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	638 heads.pop(n)
1459 106fdec8e1fb Fix small bug in nodesbetween if heads is [nullid]. Eric Hopper <hopper@omnifarious.org> parents: 1458 diff changeset	639 if not ancestors:
1463 26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween. Eric Hopper <hopper@omnifarious.org> parents: 1459 diff changeset	640 return nonodes
1457 518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	641 # Now that we have our set of ancestors, we want to remove any
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	642 # roots that are not ancestors.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	643
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	644 # 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	645 if lowestrev > nullrev:
1457 518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	646 # But, since we weren't, let's recompute the lowest rev to not
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	647 # include roots that aren't ancestors.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	648
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	649 # Filter out roots that aren't ancestors of heads
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	650 roots = [n for n in roots if n in ancestors]
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	651 # Recompute the lowest revision
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	652 if roots:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	653 lowestrev = min([self.rev(n) for n in roots])
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	654 else:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	655 # No more roots? Return empty list
1463 26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween. Eric Hopper <hopper@omnifarious.org> parents: 1459 diff changeset	656 return nonodes
1457 518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	657 else:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	658 # We are descending from nullid, and don't need to care about
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	659 # any other roots.
3578 3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1. Thomas Arendsen Hein <thomas@intevation.de> parents: 3508 diff changeset	660 lowestrev = nullrev
1457 518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	661 roots = [nullid]
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	662 # Transform our roots list into a 'set' (i.e. a dictionary where the
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	663 # values don't matter.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	664 descendents = dict.fromkeys(roots, 1)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	665 # Also, keep the original roots so we can filter out roots that aren't
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	666 # 'real' roots (i.e. are descended from other roots).
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	667 roots = descendents.copy()
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	668 # Our topologically sorted list of output nodes.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	669 orderedout = []
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	670 # Don't start at nullid since we don't want nullid in our output list,
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	671 # and if nullid shows up in descedents, empty parents will look like
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	672 # they're descendents.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	673 for r in xrange(max(lowestrev, 0), highestrev + 1):
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	674 n = self.node(r)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	675 isdescendent = False
3578 3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1. Thomas Arendsen Hein <thomas@intevation.de> parents: 3508 diff changeset	676 if lowestrev == nullrev: # Everybody is a descendent of nullid
1457 518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	677 isdescendent = True
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	678 elif n in descendents:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	679 # n is already a descendent
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	680 isdescendent = True
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	681 # This check only needs to be done here because all the roots
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	682 # will start being marked is descendents before the loop.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	683 if n in roots:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	684 # If n was a root, check if it's a 'real' root.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	685 p = tuple(self.parents(n))
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	686 # If any of its parents are descendents, it's not a root.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	687 if (p[0] in descendents) or (p[1] in descendents):
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	688 roots.pop(n)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	689 else:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	690 p = tuple(self.parents(n))
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	691 # A node is a descendent if either of its parents are
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	692 # descendents. (We seeded the dependents list with the roots
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	693 # up there, remember?)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	694 if (p[0] in descendents) or (p[1] in descendents):
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	695 descendents[n] = 1
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	696 isdescendent = True
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	697 if isdescendent and ((ancestors is None) or (n in ancestors)):
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	698 # Only include nodes that are both descendents and ancestors.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	699 orderedout.append(n)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	700 if (ancestors is not None) and (n in heads):
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	701 # We're trying to figure out which heads are reachable
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	702 # from roots.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	703 # Mark this head as having been reached
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	704 heads[n] = 1
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	705 elif ancestors is None:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	706 # Otherwise, we're trying to discover the heads.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	707 # Assume this is a head because if it isn't, the next step
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	708 # will eventually remove it.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	709 heads[n] = 1
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	710 # But, obviously its parents aren't.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	711 for p in self.parents(n):
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	712 heads.pop(p, None)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	713 heads = [n for n in heads.iterkeys() if heads[n] != 0]
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	714 roots = roots.keys()
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	715 assert orderedout
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	716 assert roots
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	717 assert heads
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	718 return (orderedout, roots, heads)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method Eric Hopper <hopper@omnifarious.org> parents: 1351 diff changeset	719
3923 27230c29bfec fix calculation of new heads added during push with -r Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3755 diff changeset	720 def heads(self, start=None, stop=None):
1550 ccb9b62de892 add a -r/--rev option to heads to show only heads descendant from rev Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1535 diff changeset	721 """return the list of all nodes that have no children
1551 e793cbc8be00 Fixes to "hg heads -r FOO": Thomas Arendsen Hein <thomas@intevation.de> parents: 1550 diff changeset	722
e793cbc8be00 Fixes to "hg heads -r FOO": Thomas Arendsen Hein <thomas@intevation.de> parents: 1550 diff changeset	723 if start is specified, only heads that are descendants of
e793cbc8be00 Fixes to "hg heads -r FOO": Thomas Arendsen Hein <thomas@intevation.de> parents: 1550 diff changeset	724 start will be returned
3923 27230c29bfec fix calculation of new heads added during push with -r Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3755 diff changeset	725 if stop is specified, it will consider all the revs from stop
27230c29bfec fix calculation of new heads added during push with -r Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3755 diff changeset	726 as if they had no children
1551 e793cbc8be00 Fixes to "hg heads -r FOO": Thomas Arendsen Hein <thomas@intevation.de> parents: 1550 diff changeset	727 """
e793cbc8be00 Fixes to "hg heads -r FOO": Thomas Arendsen Hein <thomas@intevation.de> parents: 1550 diff changeset	728 if start is None:
e793cbc8be00 Fixes to "hg heads -r FOO": Thomas Arendsen Hein <thomas@intevation.de> parents: 1550 diff changeset	729 start = nullid
3923 27230c29bfec fix calculation of new heads added during push with -r Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3755 diff changeset	730 if stop is None:
27230c29bfec fix calculation of new heads added during push with -r Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3755 diff changeset	731 stop = []
27230c29bfec fix calculation of new heads added during push with -r Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3755 diff changeset	732 stoprevs = dict.fromkeys([self.rev(n) for n in stop])
1550 ccb9b62de892 add a -r/--rev option to heads to show only heads descendant from rev Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1535 diff changeset	733 startrev = self.rev(start)
2490 6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 2489 diff changeset	734 reachable = {startrev: 1}
6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 2489 diff changeset	735 heads = {startrev: 1}
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	736
2490 6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 2489 diff changeset	737 parentrevs = self.parentrevs
1550 ccb9b62de892 add a -r/--rev option to heads to show only heads descendant from rev Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1535 diff changeset	738 for r in xrange(startrev + 1, self.count()):
2490 6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 2489 diff changeset	739 for p in parentrevs(r):
6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 2489 diff changeset	740 if p in reachable:
3923 27230c29bfec fix calculation of new heads added during push with -r Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3755 diff changeset	741 if r not in stoprevs:
27230c29bfec fix calculation of new heads added during push with -r Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3755 diff changeset	742 reachable[r] = 1
2490 6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 2489 diff changeset	743 heads[r] = 1
3923 27230c29bfec fix calculation of new heads added during push with -r Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3755 diff changeset	744 if p in heads and p not in stoprevs:
2490 6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 2489 diff changeset	745 del heads[p]
3923 27230c29bfec fix calculation of new heads added during push with -r Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3755 diff changeset	746
2490 6ff82ec1f4b8 Change revlog.heads to walk the revision graph using revision numbers Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 2489 diff changeset	747 return [self.node(r) for r in heads]
370 c90385d82aec revlog: add a children function mpm@selenic.com parents: 330 diff changeset	748
c90385d82aec revlog: add a children function mpm@selenic.com parents: 330 diff changeset	749 def children(self, node):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	750 """find the children of a given node"""
370 c90385d82aec revlog: add a children function mpm@selenic.com parents: 330 diff changeset	751 c = []
c90385d82aec revlog: add a children function mpm@selenic.com parents: 330 diff changeset	752 p = self.rev(node)
c90385d82aec revlog: add a children function mpm@selenic.com parents: 330 diff changeset	753 for r in range(p + 1, self.count()):
4746 62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated. Thomas Arendsen Hein <thomas@intevation.de> parents: 4635 diff changeset	754 prevs = [pr for pr in self.parentrevs(r) if pr != nullrev]
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated. Thomas Arendsen Hein <thomas@intevation.de> parents: 4635 diff changeset	755 if prevs:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated. Thomas Arendsen Hein <thomas@intevation.de> parents: 4635 diff changeset	756 for pr in prevs:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated. Thomas Arendsen Hein <thomas@intevation.de> parents: 4635 diff changeset	757 if pr == p:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated. Thomas Arendsen Hein <thomas@intevation.de> parents: 4635 diff changeset	758 c.append(self.node(r))
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated. Thomas Arendsen Hein <thomas@intevation.de> parents: 4635 diff changeset	759 elif p == nullrev:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated. Thomas Arendsen Hein <thomas@intevation.de> parents: 4635 diff changeset	760 c.append(self.node(r))
370 c90385d82aec revlog: add a children function mpm@selenic.com parents: 330 diff changeset	761 return c
515 03f27b1381f9 Whitespace cleanups mpm@selenic.com parents: 484 diff changeset	762
3453 dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	763 def _match(self, id):
3210 7240f9e47144 correctly find the type of 'id' in revlog.lookup Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3157 diff changeset	764 if isinstance(id, (long, int)):
3156 d01e4cb2f5f2 cleanups in revlog.lookup Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3139 diff changeset	765 # 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	766 return self.node(id)
3438 b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	767 if len(id) == 20:
b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	768 # possibly a binary node
b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	769 # odds of a binary node being all hex in ASCII are 1 in 10**25
b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	770 try:
b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	771 node = id
b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	772 r = self.rev(node) # quick search the index
b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	773 return node
3930 01d98d68d697 Add revlog.LookupError exception, and use it instead of RevlogError. Brendan Cully <brendan@kublai.com> parents: 3928 diff changeset	774 except LookupError:
3438 b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	775 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	776 try:
3156 d01e4cb2f5f2 cleanups in revlog.lookup Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3139 diff changeset	777 # str(rev)
36 da28286bf6b7 Add smart node lookup by substring or by rev number mpm@selenic.com parents: 26 diff changeset	778 rev = int(id)
469 e205194ca7ef Various node id lookup tweaks mpm@selenic.com parents: 451 diff changeset	779 if str(rev) != id: raise ValueError
e205194ca7ef Various node id lookup tweaks mpm@selenic.com parents: 451 diff changeset	780 if rev < 0: rev = self.count() + rev
476 0a338d506268 Really _call_ method revlog.count in revlog.lookup() Thomas Arendsen Hein <thomas@intevation.de> parents: 469 diff changeset	781 if rev < 0 or rev >= self.count(): raise ValueError
36 da28286bf6b7 Add smart node lookup by substring or by rev number mpm@selenic.com parents: 26 diff changeset	782 return self.node(rev)
469 e205194ca7ef Various node id lookup tweaks mpm@selenic.com parents: 451 diff changeset	783 except (ValueError, OverflowError):
3156 d01e4cb2f5f2 cleanups in revlog.lookup Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3139 diff changeset	784 pass
3453 dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	785 if len(id) == 40:
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	786 try:
3438 b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	787 # a full hex nodeid?
b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	788 node = bin(id)
b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	789 r = self.rev(node)
3157 4fe41a9e4591 optimize revlog.lookup when passed hex(node)[:...] Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 3156 diff changeset	790 return node
3453 dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	791 except TypeError:
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	792 pass
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	793
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	794 def _partialmatch(self, id):
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	795 if len(id) < 40:
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	796 try:
3438 b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	797 # hex(node)[:...]
b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	798 bin_id = bin(id[:len(id) & ~1]) # grab an even number of digits
b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	799 node = None
b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	800 for n in self.nodemap:
b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	801 if n.startswith(bin_id) and hex(n).startswith(id):
b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	802 if node is not None:
3930 01d98d68d697 Add revlog.LookupError exception, and use it instead of RevlogError. Brendan Cully <brendan@kublai.com> parents: 3928 diff changeset	803 raise LookupError(_("Ambiguous identifier"))
3438 b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	804 node = n
b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	805 if node is not None:
b17f9d3eda74 revlog.lookup tweaks Matt Mackall <mpm@selenic.com> parents: 3390 diff changeset	806 return node
3453 dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	807 except TypeError:
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	808 pass
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	809
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	810 def lookup(self, id):
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	811 """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	812 - 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	813 - 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	814 """
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	815
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	816 n = self._match(id)
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	817 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	818 return n
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	819 n = self._partialmatch(id)
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	820 if n:
dba3cadef789 Only look up tags and branches as a last resort Matt Mackall <mpm@selenic.com> parents: 3438 diff changeset	821 return n
515 03f27b1381f9 Whitespace cleanups mpm@selenic.com parents: 484 diff changeset	822
3930 01d98d68d697 Add revlog.LookupError exception, and use it instead of RevlogError. Brendan Cully <brendan@kublai.com> parents: 3928 diff changeset	823 raise LookupError(_("No match found"))
36 da28286bf6b7 Add smart node lookup by substring or by rev number mpm@selenic.com parents: 26 diff changeset	824
2890 5df3e5cf16bc Move cmp bits from filelog to revlog Matt Mackall <mpm@selenic.com> parents: 2859 diff changeset	825 def cmp(self, node, text):
5df3e5cf16bc Move cmp bits from filelog to revlog Matt Mackall <mpm@selenic.com> parents: 2859 diff changeset	826 """compare text with a given file revision"""
5df3e5cf16bc Move cmp bits from filelog to revlog Matt Mackall <mpm@selenic.com> parents: 2859 diff changeset	827 p1, p2 = self.parents(node)
5df3e5cf16bc Move cmp bits from filelog to revlog Matt Mackall <mpm@selenic.com> parents: 2859 diff changeset	828 return hash(text, p1, p2) != node
5df3e5cf16bc Move cmp bits from filelog to revlog Matt Mackall <mpm@selenic.com> parents: 2859 diff changeset	829
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	830 def diff(self, a, b):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	831 """return a delta between two revisions"""
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	832 return mdiff.textdiff(a, b)
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	833
73 ee1cbe841e01 Change revlog to use new patch code mpm@selenic.com parents: 71 diff changeset	834 def patches(self, t, pl):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	835 """apply a list of patches to a string"""
73 ee1cbe841e01 Change revlog to use new patch code mpm@selenic.com parents: 71 diff changeset	836 return mdiff.patches(t, pl)
ee1cbe841e01 Change revlog to use new patch code mpm@selenic.com parents: 71 diff changeset	837
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	838 def chunk(self, rev, df=None, cachelen=4096):
1598 14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	839 start, length = self.start(rev), self.length(rev)
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	840 inline = self._inline()
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	841 if inline:
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	842 start += (rev + 1) * self._io.size
1598 14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	843 end = start + length
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	844 def loadcache(df):
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	845 cache_length = max(cachelen, length) # 4k
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	846 if not df:
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	847 if inline:
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	848 df = self.opener(self.indexfile)
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	849 else:
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	850 df = self.opener(self.datafile)
1598 14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	851 df.seek(start)
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	852 self._io.chunkcache = (start, df.read(cache_length))
1598 14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	853
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	854 if not self._io.chunkcache:
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	855 loadcache(df)
1598 14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	856
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	857 cache_start = self._io.chunkcache[0]
8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	858 cache_end = cache_start + len(self._io.chunkcache[1])
1598 14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	859 if start >= cache_start and end <= cache_end:
14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	860 # it is cached
14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	861 offset = start - cache_start
14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	862 else:
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	863 loadcache(df)
1598 14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	864 offset = 0
14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	865
14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	866 #def checkchunk():
14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	867 # df = self.opener(self.datafile)
14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	868 # df.seek(start)
14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	869 # return df.read(length)
14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	870 #assert s == checkchunk()
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	871 return decompress(self._io.chunkcache[1][offset:offset + length])
1598 14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	872
119 c7a66f9752a4 Add code to retrieve or construct a revlog delta mpm@selenic.com parents: 117 diff changeset	873 def delta(self, node):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	874 """return or calculate a delta between a node and its predecessor"""
119 c7a66f9752a4 Add code to retrieve or construct a revlog delta mpm@selenic.com parents: 117 diff changeset	875 r = self.rev(node)
1941 7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1853 diff changeset	876 return self.revdiff(r - 1, r)
7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1853 diff changeset	877
7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1853 diff changeset	878 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	879 """return or calculate a delta between two revisions"""
7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1853 diff changeset	880 b1 = self.base(rev1)
7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1853 diff changeset	881 b2 = self.base(rev2)
7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1853 diff changeset	882 if b1 == b2 and rev1 + 1 == rev2:
7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1853 diff changeset	883 return self.chunk(rev2)
119 c7a66f9752a4 Add code to retrieve or construct a revlog delta mpm@selenic.com parents: 117 diff changeset	884 else:
1941 7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1853 diff changeset	885 return self.diff(self.revision(self.node(rev1)),
7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1853 diff changeset	886 self.revision(self.node(rev2)))
119 c7a66f9752a4 Add code to retrieve or construct a revlog delta mpm@selenic.com parents: 117 diff changeset	887
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	888 def revision(self, node):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	889 """return an uncompressed revision of a given"""
36 da28286bf6b7 Add smart node lookup by substring or by rev number mpm@selenic.com parents: 26 diff changeset	890 if node == nullid: return ""
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	891 if self.cache and self.cache[0] == node: return self.cache[2]
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	892
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	893 # look up what we need to read
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	894 text = None
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	895 rev = self.rev(node)
1598 14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	896 base = self.base(rev)
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	897
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	898 if self._inline():
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	899 # we probably have the whole chunk cached
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	900 df = None
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	901 else:
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	902 df = self.opener(self.datafile)
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	903
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	904 # do we have useful data cached?
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	905 if self.cache and self.cache[1] >= base and self.cache[1] < rev:
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	906 base = self.cache[1]
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	907 text = self.cache[2]
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	908 self._loadindex(base, rev + 1)
1598 14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	909 else:
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	910 self._loadindex(base, rev + 1)
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	911 text = self.chunk(base, df=df)
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	912
71 47c9a869adee Add mdiff.patches to speed up applying thousands of patches to the manifest mpm@selenic.com parents: 67 diff changeset	913 bins = []
64 b3e2ddff0159 Diff in subdirectories from Jake Edge mpm@selenic.com parents: 46 diff changeset	914 for r in xrange(base + 1, rev + 1):
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	915 bins.append(self.chunk(r, df=df))
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	916
1941 7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1853 diff changeset	917 text = self.patches(text, bins)
71 47c9a869adee Add mdiff.patches to speed up applying thousands of patches to the manifest mpm@selenic.com parents: 67 diff changeset	918
1598 14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	919 p1, p2 = self.parents(node)
26 9cf83bf9ad38 Simplify integrity checking mpm@selenic.com parents: 14 diff changeset	920 if node != hash(text, p1, p2):
1402 9d2c2e6b32b5 i18n part2: use '_' for all strings who are part of the user interface Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1400 diff changeset	921 raise RevlogError(_("integrity check failed on %s:%d")
3680 69cf255a55a1 Indentation cleanups for 2956948b81f3. Thomas Arendsen Hein <thomas@intevation.de> parents: 3679 diff changeset	922 % (self.datafile, rev))
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	923
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	924 self.cache = (node, rev, text)
515 03f27b1381f9 Whitespace cleanups mpm@selenic.com parents: 484 diff changeset	925 return text
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	926
2075 343aeefb553b Make the appendfile class inline-data index friendly mason@suse.com parents: 2073 diff changeset	927 def checkinlinesize(self, tr, fp=None):
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	928 if not self._inline():
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	929 return
2075 343aeefb553b Make the appendfile class inline-data index friendly mason@suse.com parents: 2073 diff changeset	930 if not fp:
343aeefb553b Make the appendfile class inline-data index friendly mason@suse.com parents: 2073 diff changeset	931 fp = self.opener(self.indexfile, 'r')
2082 856f0ba200bc Additional appendfile fixes for interleaved data/index files mason@suse.com parents: 2081 diff changeset	932 fp.seek(0, 2)
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	933 size = fp.tell()
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	934 if size < 131072:
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	935 return
2084 d66278012853 Chris Mason <mason@suse.com> parents: 2082 diff changeset	936 trinfo = tr.find(self.indexfile)
d66278012853 Chris Mason <mason@suse.com> parents: 2082 diff changeset	937 if trinfo == None:
3680 69cf255a55a1 Indentation cleanups for 2956948b81f3. Thomas Arendsen Hein <thomas@intevation.de> parents: 3679 diff changeset	938 raise RevlogError(_("%s not found in the transaction")
69cf255a55a1 Indentation cleanups for 2956948b81f3. Thomas Arendsen Hein <thomas@intevation.de> parents: 3679 diff changeset	939 % self.indexfile)
2084 d66278012853 Chris Mason <mason@suse.com> parents: 2082 diff changeset	940
d66278012853 Chris Mason <mason@suse.com> parents: 2082 diff changeset	941 trindex = trinfo[2]
d66278012853 Chris Mason <mason@suse.com> parents: 2082 diff changeset	942 dataoff = self.start(trindex)
d66278012853 Chris Mason <mason@suse.com> parents: 2082 diff changeset	943
d66278012853 Chris Mason <mason@suse.com> parents: 2082 diff changeset	944 tr.add(self.datafile, dataoff)
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	945 df = self.opener(self.datafile, 'w')
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	946 calc = self._io.size
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	947 for r in xrange(self.count()):
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	948 start = self.start(r) + (r + 1) * calc
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	949 length = self.length(r)
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	950 fp.seek(start)
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	951 d = fp.read(length)
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	952 df.write(d)
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	953 fp.close()
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	954 df.close()
2076 d007df6daf8e Create an atomic opener that does not automatically rename on close mason@suse.com parents: 2075 diff changeset	955 fp = self.opener(self.indexfile, 'w', atomictemp=True)
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	956 self.version &= ~(REVLOGNGINLINEDATA)
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	957 if self.count():
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	958 x = self.index[0]
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	959 e = struct.pack(indexformatng, *x)[4:]
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	960 l = struct.pack(versionformat, self.version)
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	961 fp.write(l)
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	962 fp.write(e)
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	963
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	964 for i in xrange(1, self.count()):
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	965 x = self.index[i]
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	966 e = struct.pack(indexformatng, *x)
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	967 fp.write(e)
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	968
2076 d007df6daf8e Create an atomic opener that does not automatically rename on close mason@suse.com parents: 2075 diff changeset	969 # if we don't call rename, the temp file will never replace the
d007df6daf8e Create an atomic opener that does not automatically rename on close mason@suse.com parents: 2075 diff changeset	970 # real index
d007df6daf8e Create an atomic opener that does not automatically rename on close mason@suse.com parents: 2075 diff changeset	971 fp.rename()
2084 d66278012853 Chris Mason <mason@suse.com> parents: 2082 diff changeset	972
d66278012853 Chris Mason <mason@suse.com> parents: 2082 diff changeset	973 tr.replace(self.indexfile, trindex * calc)
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	974 self._io.chunkcache = None
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	975
644 6ebe118280bd Performance enhancements for manifest.add() mason@suse.com parents: 547 diff changeset	976 def addrevision(self, text, transaction, link, p1=None, p2=None, d=None):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	977 """add a revision to the log
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	978
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	979 text - the revision data to add
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	980 transaction - the transaction object used for rollback
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	981 link - the linkrev data to add
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	982 p1, p2 - the parent nodeids of the revision
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	983 d - an optional precomputed delta
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	984 """
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	985 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	986 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	987 else:
a74addddd092 make revlog.addgroup pass its file handles to addrevision Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 3360 diff changeset	988 dfh = None
a74addddd092 make revlog.addgroup pass its file handles to addrevision Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 3360 diff changeset	989 ifh = self.opener(self.indexfile, "a+")
a74addddd092 make revlog.addgroup pass its file handles to addrevision Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 3360 diff changeset	990 return self._addrevision(text, transaction, link, p1, p2, d, ifh, dfh)
a74addddd092 make revlog.addgroup pass its file handles to addrevision Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 3360 diff changeset	991
a74addddd092 make revlog.addgroup pass its file handles to addrevision Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 3360 diff changeset	992 def _addrevision(self, text, transaction, link, p1, p2, d, ifh, dfh):
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	993 if text is None: text = ""
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	994 if p1 is None: p1 = self.tip()
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	995 if p2 is None: p2 = nullid
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	996
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	997 node = hash(text, p1, p2)
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	998
301 5add718d92db revlog: allow duplicates mpm@selenic.com parents: 243 diff changeset	999 if node in self.nodemap:
5add718d92db revlog: allow duplicates mpm@selenic.com parents: 243 diff changeset	1000 return node
5add718d92db revlog: allow duplicates mpm@selenic.com parents: 243 diff changeset	1001
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1002 n = self.count()
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1003 t = n - 1
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1004
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1005 if n:
64 b3e2ddff0159 Diff in subdirectories from Jake Edge mpm@selenic.com parents: 46 diff changeset	1006 base = self.base(t)
b3e2ddff0159 Diff in subdirectories from Jake Edge mpm@selenic.com parents: 46 diff changeset	1007 start = self.start(base)
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1008 end = self.end(t)
644 6ebe118280bd Performance enhancements for manifest.add() mason@suse.com parents: 547 diff changeset	1009 if not d:
6ebe118280bd Performance enhancements for manifest.add() mason@suse.com parents: 547 diff changeset	1010 prev = self.revision(self.tip())
3335 9061613c1593 Teach bdiff to support buffer objects Brendan Cully <brendan@kublai.com> parents: 3210 diff changeset	1011 d = self.diff(prev, text)
98 3dde7c87e36d Add paranoia to diff code mpm@selenic.com parents: 97 diff changeset	1012 data = compress(d)
1533 3d11f81c9145 Reduce string duplication in compression code mason@suse.com parents: 1509 diff changeset	1013 l = len(data[1]) + len(data[0])
3d11f81c9145 Reduce string duplication in compression code mason@suse.com parents: 1509 diff changeset	1014 dist = end - start + l
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1015
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1016 # full versions are inserted when the needed deltas
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1017 # become comparable to the uncompressed text
64 b3e2ddff0159 Diff in subdirectories from Jake Edge mpm@selenic.com parents: 46 diff changeset	1018 if not n or dist > len(text) * 2:
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1019 data = compress(text)
1533 3d11f81c9145 Reduce string duplication in compression code mason@suse.com parents: 1509 diff changeset	1020 l = len(data[1]) + len(data[0])
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1021 base = n
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1022 else:
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1023 base = self.base(t)
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1024
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1025 offset = 0
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1026 if t >= 0:
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1027 offset = self.end(t)
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1028
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1029 e = (offset_type(offset, 0), l, len(text),
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1030 base, link, self.rev(p1), self.rev(p2), node)
515 03f27b1381f9 Whitespace cleanups mpm@selenic.com parents: 484 diff changeset	1031
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1032 self.index.append(e)
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1033 self.nodemap[node] = n
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1034
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1035 if self.version == REVLOGV0:
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1036 e = (offset, l, base, link, p1, p2, node)
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1037 entry = struct.pack(indexformatv0, *e)
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1038 else:
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1039 entry = struct.pack(indexformatng, *e)
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1040
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	1041 if not self._inline():
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1042 transaction.add(self.datafile, offset)
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1043 transaction.add(self.indexfile, n * len(entry))
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1044 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	1045 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	1046 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	1047 dfh.flush()
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1048 else:
3390 a74addddd092 make revlog.addgroup pass its file handles to addrevision Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 3360 diff changeset	1049 ifh.seek(0, 2)
a74addddd092 make revlog.addgroup pass its file handles to addrevision Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 3360 diff changeset	1050 transaction.add(self.indexfile, ifh.tell(), self.count() - 1)
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	1051
2142 8a1e2a9c7013 Replaced 0 with REVLOGV0 where this meaning is used. Thomas Arendsen Hein <thomas@intevation.de> parents: 2141 diff changeset	1052 if len(self.index) == 1 and self.version != REVLOGV0:
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	1053 l = struct.pack(versionformat, self.version)
3390 a74addddd092 make revlog.addgroup pass its file handles to addrevision Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 3360 diff changeset	1054 ifh.write(l)
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	1055 entry = entry[4:]
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	1056
3390 a74addddd092 make revlog.addgroup pass its file handles to addrevision Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 3360 diff changeset	1057 ifh.write(entry)
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1058
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	1059 if 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	1060 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	1061 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	1062 self.checkinlinesize(transaction, ifh)
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1063
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1064 self.cache = (node, n, text)
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1065 return node
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1066
9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1067 def ancestor(self, a, b):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1068 """calculate the least common ancestor of nodes a and b"""
2081 416d8b2a75b8 Speedup revlog.ancestors for the linear case Chris Mason <mason@suse.com> parents: 2080 diff changeset	1069
3139 1fd1cdcc4200 Switch revlog.ancestor to use revisions rather than nodeids Matt Mackall <mpm@selenic.com> parents: 3135 diff changeset	1070 def parents(rev):
3578 3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1. Thomas Arendsen Hein <thomas@intevation.de> parents: 3508 diff changeset	1071 return [p for p in self.parentrevs(rev) if p != nullrev]
515 03f27b1381f9 Whitespace cleanups mpm@selenic.com parents: 484 diff changeset	1072
3139 1fd1cdcc4200 Switch revlog.ancestor to use revisions rather than nodeids Matt Mackall <mpm@selenic.com> parents: 3135 diff changeset	1073 c = ancestor.ancestor(self.rev(a), self.rev(b), parents)
1fd1cdcc4200 Switch revlog.ancestor to use revisions rather than nodeids Matt Mackall <mpm@selenic.com> parents: 3135 diff changeset	1074 if c is None:
1fd1cdcc4200 Switch revlog.ancestor to use revisions rather than nodeids Matt Mackall <mpm@selenic.com> parents: 3135 diff changeset	1075 return nullid
1fd1cdcc4200 Switch revlog.ancestor to use revisions rather than nodeids Matt Mackall <mpm@selenic.com> parents: 3135 diff changeset	1076
1fd1cdcc4200 Switch revlog.ancestor to use revisions rather than nodeids Matt Mackall <mpm@selenic.com> parents: 3135 diff changeset	1077 return self.node(c)
0 9117c6561b0b Add back links from file revisions to changeset revisions mpm@selenic.com parents: diff changeset	1078
1598 14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	1079 def group(self, nodelist, lookup, infocollect=None):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1080 """calculate a delta group
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1081
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1082 Given a list of changeset revs, return a set of deltas and
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1083 metadata corresponding to nodes. the first delta is
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1084 parent(nodes[0]) -> nodes[0] the receiver is guaranteed to
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1085 have this parent as it has all history before these
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1086 changesets. parent is parent[0]
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1087 """
1458 1033892bbb87 This changes the revlog.group and re-implements the localrepo.changeroup Eric Hopper <hopper@omnifarious.org> parents: 1457 diff changeset	1088 revs = [self.rev(n) for n in nodelist]
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1089
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1090 # if we don't have any revisions touched by these changesets, bail
192 5d8553352d2e Changes to network protocol mpm@selenic.com parents: 155 diff changeset	1091 if not revs:
1981 736b6c96bbbc make incoming work via ssh (issue139); move chunk code into separate module. Thomas Arendsen Hein <thomas@intevation.de> parents: 1941 diff changeset	1092 yield changegroup.closechunk()
192 5d8553352d2e Changes to network protocol mpm@selenic.com parents: 155 diff changeset	1093 return
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1094
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1095 # add the parent of the first rev
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1096 p = self.parents(self.node(revs[0]))[0]
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1097 revs.insert(0, self.rev(p))
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1098
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1099 # build deltas
71 47c9a869adee Add mdiff.patches to speed up applying thousands of patches to the manifest mpm@selenic.com parents: 67 diff changeset	1100 for d in xrange(0, len(revs) - 1):
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1101 a, b = revs[d], revs[d + 1]
1598 14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	1102 nb = self.node(b)
192 5d8553352d2e Changes to network protocol mpm@selenic.com parents: 155 diff changeset	1103
1458 1033892bbb87 This changes the revlog.group and re-implements the localrepo.changeroup Eric Hopper <hopper@omnifarious.org> parents: 1457 diff changeset	1104 if infocollect is not None:
1598 14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	1105 infocollect(nb)
1458 1033892bbb87 This changes the revlog.group and re-implements the localrepo.changeroup Eric Hopper <hopper@omnifarious.org> parents: 1457 diff changeset	1106
1941 7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1853 diff changeset	1107 d = self.revdiff(a, b)
1598 14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	1108 p = self.parents(nb)
14d1f1868bf6 cleanup of revlog.group when repository is local Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1559 diff changeset	1109 meta = nb + p[0] + p[1] + lookup(nb)
1981 736b6c96bbbc make incoming work via ssh (issue139); move chunk code into separate module. Thomas Arendsen Hein <thomas@intevation.de> parents: 1941 diff changeset	1110 yield changegroup.genchunk("%s%s" % (meta, d))
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1111
1981 736b6c96bbbc make incoming work via ssh (issue139); move chunk code into separate module. Thomas Arendsen Hein <thomas@intevation.de> parents: 1941 diff changeset	1112 yield changegroup.closechunk()
192 5d8553352d2e Changes to network protocol mpm@selenic.com parents: 155 diff changeset	1113
1062 6d5a62a549fa pep-0008 cleanup benoit.boissinot@ens-lyon.fr parents: 902 diff changeset	1114 def addgroup(self, revs, linkmapper, transaction, unique=0):
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1115 """
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1116 add a delta group
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1117
1083 30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1118 given a set of deltas, add them to the revision log. the
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1119 first delta is against its parent, which should be in our
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1120 log, the rest are against the previous delta.
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1121 """
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1122
30974cf73435 Add some docstrings to revlog.py mpm@selenic.com parents: 1074 diff changeset	1123 #track the base of the current delta log
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1124 r = self.count()
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1125 t = r - 1
2002 4aab906517c6 Calling revlog.addgroup with an empty changegroup now raises RevlogError. Thomas Arendsen Hein <thomas@intevation.de> parents: 1981 diff changeset	1126 node = None
515 03f27b1381f9 Whitespace cleanups mpm@selenic.com parents: 484 diff changeset	1127
3578 3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1. Thomas Arendsen Hein <thomas@intevation.de> parents: 3508 diff changeset	1128 base = prev = nullrev
2078 441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	1129 start = end = textlen = 0
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1130 if r:
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1131 end = self.end(t)
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1132
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	1133 ifh = self.opener(self.indexfile, "a+")
2077 4d0700ae0991 Fix inlined revlogs to seek to eof after opening "a+" mason@suse.com parents: 2076 diff changeset	1134 ifh.seek(0, 2)
2084 d66278012853 Chris Mason <mason@suse.com> parents: 2082 diff changeset	1135 transaction.add(self.indexfile, ifh.tell(), self.count())
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	1136 if self._inline():
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1137 dfh = None
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1138 else:
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1139 transaction.add(self.datafile, end)
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1140 dfh = self.opener(self.datafile, "a")
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1141
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1142 # loop through our set of deltas
192 5d8553352d2e Changes to network protocol mpm@selenic.com parents: 155 diff changeset	1143 chain = None
5d8553352d2e Changes to network protocol mpm@selenic.com parents: 155 diff changeset	1144 for chunk in revs:
5d8553352d2e Changes to network protocol mpm@selenic.com parents: 155 diff changeset	1145 node, p1, p2, cs = struct.unpack("20s20s20s20s", chunk[:80])
94 7daef883134f Refactor merge code mpm@selenic.com parents: 86 diff changeset	1146 link = linkmapper(cs)
77 bed15e766511 Fix bug in lazymap code mpm@selenic.com parents: 76 diff changeset	1147 if node in self.nodemap:
224 ccbcc4d76f81 fix bad assumption about uniqueness of file versions mpm@selenic.com parents: 221 diff changeset	1148 # this can happen if two branches make the same change
1218 cde6818e082a Add preliminary support for the bundle and unbundle commands mpm@selenic.com parents: 1214 diff changeset	1149 # if unique:
1402 9d2c2e6b32b5 i18n part2: use '_' for all strings who are part of the user interface Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1400 diff changeset	1150 # raise RevlogError(_("already have %s") % hex(node[:4]))
653 94cdd02792b5 Fix corruption resulting from skipping parts of a revision group Matt Mackall <mpm@selenic.com> parents: 651 diff changeset	1151 chain = node
224 ccbcc4d76f81 fix bad assumption about uniqueness of file versions mpm@selenic.com parents: 221 diff changeset	1152 continue
192 5d8553352d2e Changes to network protocol mpm@selenic.com parents: 155 diff changeset	1153 delta = chunk[80:]
5d8553352d2e Changes to network protocol mpm@selenic.com parents: 155 diff changeset	1154
1509 46a07392cf28 Add safety check for addgroup Matt Mackall <mpm@selenic.com> parents: 1494 diff changeset	1155 for p in (p1, p2):
46a07392cf28 Add safety check for addgroup Matt Mackall <mpm@selenic.com> parents: 1494 diff changeset	1156 if not p in self.nodemap:
3930 01d98d68d697 Add revlog.LookupError exception, and use it instead of RevlogError. Brendan Cully <brendan@kublai.com> parents: 3928 diff changeset	1157 raise LookupError(_("unknown parent %s") % short(p))
1509 46a07392cf28 Add safety check for addgroup Matt Mackall <mpm@selenic.com> parents: 1494 diff changeset	1158
192 5d8553352d2e Changes to network protocol mpm@selenic.com parents: 155 diff changeset	1159 if not chain:
5d8553352d2e Changes to network protocol mpm@selenic.com parents: 155 diff changeset	1160 # retrieve the parent revision of the delta chain
5d8553352d2e Changes to network protocol mpm@selenic.com parents: 155 diff changeset	1161 chain = p1
5d8553352d2e Changes to network protocol mpm@selenic.com parents: 155 diff changeset	1162 if not chain in self.nodemap:
3930 01d98d68d697 Add revlog.LookupError exception, and use it instead of RevlogError. Brendan Cully <brendan@kublai.com> parents: 3928 diff changeset	1163 raise LookupError(_("unknown base %s") % short(chain[:4]))
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1164
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1165 # full versions are inserted when the needed deltas become
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1166 # comparable to the uncompressed text or when the previous
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1167 # version is not the one we have a delta against. We use
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1168 # the size of the previous full rev as a proxy for the
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1169 # current size.
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1170
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1171 if chain == prev:
1533 3d11f81c9145 Reduce string duplication in compression code mason@suse.com parents: 1509 diff changeset	1172 tempd = compress(delta)
3d11f81c9145 Reduce string duplication in compression code mason@suse.com parents: 1509 diff changeset	1173 cdelta = tempd[0] + tempd[1]
2078 441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	1174 textlen = mdiff.patchedsize(textlen, delta)
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1175
2078 441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	1176 if chain != prev or (end - start + len(cdelta)) > textlen * 2:
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1177 # flush our writes here so we can read it in revision
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	1178 if dfh:
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	1179 dfh.flush()
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1180 ifh.flush()
65 d40cc5aacc31 Fix up a bunch of bugs in the new merge code mpm@selenic.com parents: 64 diff changeset	1181 text = self.revision(chain)
73 ee1cbe841e01 Change revlog to use new patch code mpm@selenic.com parents: 71 diff changeset	1182 text = self.patches(text, [delta])
3390 a74addddd092 make revlog.addgroup pass its file handles to addrevision Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 3360 diff changeset	1183 chk = self._addrevision(text, transaction, link, p1, p2, None,
a74addddd092 make revlog.addgroup pass its file handles to addrevision Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 3360 diff changeset	1184 ifh, dfh)
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	1185 if not dfh and 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	1186 # addrevision switched from inline to conventional
a74addddd092 make revlog.addgroup pass its file handles to addrevision Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 3360 diff changeset	1187 # reopen the index
a74addddd092 make revlog.addgroup pass its file handles to addrevision Alexis S. L. Carvalho <alexis@cecm.usp.br> parents: 3360 diff changeset	1188 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	1189 ifh = self.opener(self.indexfile, "a")
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1190 if chk != node:
1402 9d2c2e6b32b5 i18n part2: use '_' for all strings who are part of the user interface Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1400 diff changeset	1191 raise RevlogError(_("consistency error adding group"))
2078 441ea218414e Fill in the uncompressed size during revlog.addgroup mason@suse.com parents: 2077 diff changeset	1192 textlen = len(text)
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1193 else:
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1194 e = (offset_type(end, 0), len(cdelta), textlen, base,
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1195 link, self.rev(p1), self.rev(p2), node)
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1196 self.index.append(e)
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1197 self.nodemap[node] = r
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	1198 if self._inline():
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1199 ifh.write(struct.pack(indexformatng, *e))
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1200 ifh.write(cdelta)
2075 343aeefb553b Make the appendfile class inline-data index friendly mason@suse.com parents: 2073 diff changeset	1201 self.checkinlinesize(transaction, ifh)
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	1202 if not self._inline():
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1203 dfh = self.opener(self.datafile, "a")
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1204 ifh = self.opener(self.indexfile, "a")
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1205 else:
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1206 if self.version == REVLOGV0:
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1207 e = (end, len(cdelta), base, link, p1, p2, node)
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1208 entry = struct.pack(indexformatv0, *e)
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1209 else:
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1210 entry = struct.pack(indexformatng, *e)
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1211 dfh.write(cdelta)
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1212 ifh.write(entry)
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1213
65 d40cc5aacc31 Fix up a bunch of bugs in the new merge code mpm@selenic.com parents: 64 diff changeset	1214 t, r, chain, prev = r, r + 1, node, node
1749 d457fec76ab0 fix warnings from pychecker (unused variables and shadowing) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1711 diff changeset	1215 base = self.base(t)
d457fec76ab0 fix warnings from pychecker (unused variables and shadowing) Benoit Boissinot <benoit.boissinot@ens-lyon.org> parents: 1711 diff changeset	1216 start = self.start(base)
46 93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1217 end = self.end(t)
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1218
93e868fa0db8 Add changegroup support mpm@selenic.com parents: 45 diff changeset	1219 return node
1493 1a216cb4ee64 verify: add check for mismatch of index and data length Matt Mackall <mpm@selenic.com> parents: 1469 diff changeset	1220
1535 7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1221 def strip(self, rev, minlink):
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1222 if self.count() == 0 or rev >= self.count():
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1223 return
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1224
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	1225 if isinstance(self.index, lazyindex):
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	1226 self._loadindexmap()
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	1227
1535 7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1228 # When stripping away a revision, we need to make sure it
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1229 # does not actually belong to an older changeset.
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1230 # The minlink parameter defines the oldest revision
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1231 # we're allowed to strip away.
4978 93d48a8fa496 revlog: change accesses to index entry elements to use positive offsets Matt Mackall <mpm@selenic.com> parents: 4977 diff changeset	1232 while minlink > self.index[rev][4]:
1535 7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1233 rev += 1
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1234 if rev >= self.count():
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1235 return
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1236
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1237 # first truncate the files on disk
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1238 end = self.start(rev)
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	1239 if not self._inline():
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1240 df = self.opener(self.datafile, "a")
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1241 df.truncate(end)
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1242 end = rev * self._io.size
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1243 else:
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1244 end += rev * self._io.size
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	1245
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	1246 indexf = self.opener(self.indexfile, "a")
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	1247 indexf.truncate(end)
1535 7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1248
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1249 # then reset internal state in memory to forget those revisions
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1250 self.cache = None
4972 8d0cf46e0dc6 revlog: add revlogio interface Matt Mackall <mpm@selenic.com> parents: 4971 diff changeset	1251 self._io.chunkcache = None
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	1252 for x in xrange(rev, self.count()):
74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	1253 del self.nodemap[self.node(x)]
1535 7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1254
2072 74d3f5336b66 Implement revlogng. mason@suse.com parents: 2002 diff changeset	1255 del self.index[rev:]
1535 7ae0ce7a3dc4 Add revlog.strip to truncate away revisions. mason@suse.com parents: 1533 diff changeset	1256
1493 1a216cb4ee64 verify: add check for mismatch of index and data length Matt Mackall <mpm@selenic.com> parents: 1469 diff changeset	1257 def checksize(self):
1a216cb4ee64 verify: add check for mismatch of index and data length Matt Mackall <mpm@selenic.com> parents: 1469 diff changeset	1258 expected = 0
1a216cb4ee64 verify: add check for mismatch of index and data length Matt Mackall <mpm@selenic.com> parents: 1469 diff changeset	1259 if self.count():
1a216cb4ee64 verify: add check for mismatch of index and data length Matt Mackall <mpm@selenic.com> parents: 1469 diff changeset	1260 expected = self.end(self.count() - 1)
1667 daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1261
1494 249ca10d37f4 Handle empty logs in repo.checksize Matt Mackall <mpm@selenic.com> parents: 1493 diff changeset	1262 try:
249ca10d37f4 Handle empty logs in repo.checksize Matt Mackall <mpm@selenic.com> parents: 1493 diff changeset	1263 f = self.opener(self.datafile)
249ca10d37f4 Handle empty logs in repo.checksize Matt Mackall <mpm@selenic.com> parents: 1493 diff changeset	1264 f.seek(0, 2)
249ca10d37f4 Handle empty logs in repo.checksize Matt Mackall <mpm@selenic.com> parents: 1493 diff changeset	1265 actual = f.tell()
1667 daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1266 dd = actual - expected
1494 249ca10d37f4 Handle empty logs in repo.checksize Matt Mackall <mpm@selenic.com> parents: 1493 diff changeset	1267 except IOError, inst:
1667 daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1268 if inst.errno != errno.ENOENT:
daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1269 raise
daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1270 dd = 0
daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1271
daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1272 try:
daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1273 f = self.opener(self.indexfile)
daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1274 f.seek(0, 2)
daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1275 actual = f.tell()
4977 6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally Matt Mackall <mpm@selenic.com> parents: 4976 diff changeset	1276 s = self._io.size
1667 daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1277 i = actual / s
daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1278 di = actual - (i * s)
4920 ee983d0dbea8 revlog: privatize some methods Matt Mackall <mpm@selenic.com> parents: 4919 diff changeset	1279 if self._inline():
2073 1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1280 databytes = 0
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1281 for r in xrange(self.count()):
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1282 databytes += self.length(r)
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1283 dd = 0
1e6745f78989 Implement data inlined with the index file mason@suse.com parents: 2072 diff changeset	1284 di = actual - self.count() * s - databytes
1667 daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1285 except IOError, inst:
daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1286 if inst.errno != errno.ENOENT:
daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1287 raise
daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1288 di = 0
daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1289
daff3ef0de8d verify: notice extra data in indices Matt Mackall <mpm@selenic.com> parents: 1660 diff changeset	1290 return (dd, di)
1494 249ca10d37f4 Handle empty logs in repo.checksize Matt Mackall <mpm@selenic.com> parents: 1493 diff changeset	1291
249ca10d37f4 Handle empty logs in repo.checksize Matt Mackall <mpm@selenic.com> parents: 1493 diff changeset	1292

Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/revlog.py @ 4978:93d48a8fa496