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
206
207
208
209
210
211
212
213
214
215
216
217
|
# 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')
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]
if entry[1] == '160000':
raise util.Abort('git submodules are not supported!')
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 = {}
alltags = {}
fh = self.gitopen('git ls-remote --tags "%s"' % self.path)
prefix = 'refs/tags/'
# Build complete list of tags, both annotated and bare ones
for line in fh:
line = line.strip()
node, tag = line.split(None, 1)
if not tag.startswith(prefix):
continue
alltags[tag[len(prefix):]] = node
if fh.close():
raise util.Abort(_('cannot read tags from %s') % self.path)
# Filter out tag objects for annotated tag refs
for tag in alltags:
if tag.endswith('^{}'):
tags[tag[:-3]] = alltags[tag]
else:
if tag + '^{}' in alltags:
continue
else:
tags[tag] = alltags[tag]
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 Exception:
pass
return bookmarks
|
