Mercurial > public > mercurial-scm > hg

comparison mercurial/pure/parsers.py @ 18567:194e63c1ccb9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
dirstate: move pure python dirstate packing to pure/parsers.py
author Siddharth Agarwal <sid0@fb.com>
date Thu, 17 Jan 2013 23:46:08 -0800
parents e95ec38f86b0
children 187bf2dde7c1
comparison
equal deleted inserted replaced
18566:341868ef0cf6 18567:194e63c1ccb9
5 # This software may be used and distributed according to the terms of the 5 # This software may be used and distributed according to the terms of the
6 # GNU General Public License version 2 or any later version. 6 # GNU General Public License version 2 or any later version.
7 7
8 from mercurial.node import bin, nullid 8 from mercurial.node import bin, nullid
9 from mercurial import util 9 from mercurial import util
10 import struct, zlib 10 import struct, zlib, cStringIO
11 11
12 _pack = struct.pack 12 _pack = struct.pack
13 _unpack = struct.unpack 13 _unpack = struct.unpack
14 _compress = zlib.compress 14 _compress = zlib.compress
15 _decompress = zlib.decompress 15 _decompress = zlib.decompress
85 if '\0' in f: 85 if '\0' in f:
86 f, c = f.split('\0') 86 f, c = f.split('\0')
87 copymap[f] = c 87 copymap[f] = c
88 dmap[f] = e[:4] 88 dmap[f] = e[:4]
89 return parents 89 return parents
90
91 def pack_dirstate(dmap, copymap, pl, now):
92 now = int(now)
93 cs = cStringIO.StringIO()
94 write = cs.write
95 write("".join(pl))
96 for f, e in dmap.iteritems():
97 if e[0] == 'n' and e[3] == now:
98 # The file was last modified "simultaneously" with the current
99 # write to dirstate (i.e. within the same second for file-
100 # systems with a granularity of 1 sec). This commonly happens
101 # for at least a couple of files on 'update'.
102 # The user could change the file without changing its size
103 # within the same second. Invalidate the file's stat data in
104 # dirstate, forcing future 'status' calls to compare the
105 # contents of the file. This prevents mistakenly treating such
106 # files as clean.
107 e = (e[0], 0, -1, -1) # mark entry as 'unset'
108 dmap[f] = e
109
110 if f in copymap:
111 f = "%s\0%s" % (f, copymap[f])
112 e = _pack(">cllll", e[0], e[1], e[2], e[3], len(f))
113 write(e)
114 write(f)
115 return cs.getvalue()