/usr/share/pyshared/hgext/convert/git.py is in mercurial-common 2.0.2-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 | # git.py - git support for the convert extension
#
# Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
import os
from mercurial import util
from mercurial.node import hex, nullid
from mercurial.i18n import _
from common import NoRepo, commit, converter_source, checktool
class convert_git(converter_source):
# Windows does not support GIT_DIR= construct while other systems
# cannot remove environment variable. Just assume none have
# both issues.
if util.safehasattr(os, 'unsetenv'):
def gitopen(self, s, noerr=False):
prevgitdir = os.environ.get('GIT_DIR')
os.environ['GIT_DIR'] = self.path
try:
if noerr:
(stdin, stdout, stderr) = util.popen3(s)
return stdout
else:
return util.popen(s, 'rb')
finally:
if prevgitdir is None:
del os.environ['GIT_DIR']
else:
os.environ['GIT_DIR'] = prevgitdir
else:
def gitopen(self, s, noerr=False):
if noerr:
(sin, so, se) = util.popen3('GIT_DIR=%s %s' % (self.path, s))
return so
else:
return util.popen('GIT_DIR=%s %s' % (self.path, s), 'rb')
def gitread(self, s):
fh = self.gitopen(s)
data = fh.read()
return data, fh.close()
def __init__(self, ui, path, rev=None):
super(convert_git, self).__init__(ui, path, rev=rev)
if os.path.isdir(path + "/.git"):
path += "/.git"
if not os.path.exists(path + "/objects"):
raise NoRepo(_("%s does not look like a Git repository") % path)
checktool('git', 'git', debname='git-core')
self.path = path
def getheads(self):
if not self.rev:
heads, ret = self.gitread('git rev-parse --branches --remotes')
heads = heads.splitlines()
else:
heads, ret = self.gitread("git rev-parse --verify %s" % self.rev)
heads = [heads[:-1]]
if ret:
raise util.Abort(_('cannot retrieve git heads'))
return heads
def catfile(self, rev, type):
if rev == hex(nullid):
raise IOError()
data, ret = self.gitread("git cat-file %s %s" % (type, rev))
if ret:
raise util.Abort(_('cannot read %r object at %s') % (type, rev))
return data
def getfile(self, name, rev):
data = self.catfile(rev, "blob")
mode = self.modecache[(name, rev)]
return data, mode
def getchanges(self, version):
self.modecache = {}
fh = self.gitopen("git diff-tree -z --root -m -r %s" % version)
changes = []
seen = set()
entry = None
for l in fh.read().split('\x00'):
if not entry:
if not l.startswith(':'):
continue
entry = l
continue
f = l
if f not in seen:
seen.add(f)
entry = entry.split()
h = entry[3]
p = (entry[1] == "100755")
s = (entry[1] == "120000")
self.modecache[(f, h)] = (p and "x") or (s and "l") or ""
changes.append((f, h))
entry = None
if fh.close():
raise util.Abort(_('cannot read changes in %s') % version)
return (changes, {})
def getcommit(self, version):
c = self.catfile(version, "commit") # read the commit hash
end = c.find("\n\n")
message = c[end + 2:]
message = self.recode(message)
l = c[:end].splitlines()
parents = []
author = committer = None
for e in l[1:]:
n, v = e.split(" ", 1)
if n == "author":
p = v.split()
tm, tz = p[-2:]
author = " ".join(p[:-2])
if author[0] == "<": author = author[1:-1]
author = self.recode(author)
if n == "committer":
p = v.split()
tm, tz = p[-2:]
committer = " ".join(p[:-2])
if committer[0] == "<": committer = committer[1:-1]
committer = self.recode(committer)
if n == "parent":
parents.append(v)
if committer and committer != author:
message += "\ncommitter: %s\n" % committer
tzs, tzh, tzm = tz[-5:-4] + "1", tz[-4:-2], tz[-2:]
tz = -int(tzs) * (int(tzh) * 3600 + int(tzm))
date = tm + " " + str(tz)
c = commit(parents=parents, date=date, author=author, desc=message,
rev=version)
return c
def gettags(self):
tags = {}
fh = self.gitopen('git ls-remote --tags "%s"' % self.path)
prefix = 'refs/tags/'
for line in fh:
line = line.strip()
if not line.endswith("^{}"):
continue
node, tag = line.split(None, 1)
if not tag.startswith(prefix):
continue
tag = tag[len(prefix):-3]
tags[tag] = node
if fh.close():
raise util.Abort(_('cannot read tags from %s') % self.path)
return tags
def getchangedfiles(self, version, i):
changes = []
if i is None:
fh = self.gitopen("git diff-tree --root -m -r %s" % version)
for l in fh:
if "\t" not in l:
continue
m, f = l[:-1].split("\t")
changes.append(f)
else:
fh = self.gitopen('git diff-tree --name-only --root -r %s "%s^%s" --'
% (version, version, i + 1))
changes = [f.rstrip('\n') for f in fh]
if fh.close():
raise util.Abort(_('cannot read changes in %s') % version)
return changes
def getbookmarks(self):
bookmarks = {}
# Interesting references in git are prefixed
prefix = 'refs/heads/'
prefixlen = len(prefix)
# factor two commands
gitcmd = { 'remote/': 'git ls-remote --heads origin',
'': 'git show-ref'}
# Origin heads
for reftype in gitcmd:
try:
fh = self.gitopen(gitcmd[reftype], noerr=True)
for line in fh:
line = line.strip()
rev, name = line.split(None, 1)
if not name.startswith(prefix):
continue
name = '%s%s' % (reftype, name[prefixlen:])
bookmarks[name] = rev
except:
pass
return bookmarks
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