Mercurial > hg
annotate hgext/convert/git.py @ 9102:bbc78cb1bf15
Merge with stable
author | Matt Mackall <mpm@selenic.com> |
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date | Thu, 09 Jul 2009 19:49:02 -0500 |
parents | e9e2a2c9b294 |
children | 25e572394f5c |
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1 # git.py - git support for the convert extension |
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2 # |
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3 # Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2, incorporated herein by reference. |
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7 |
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8 import os |
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9 from mercurial import util |
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10 |
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11 from common import NoRepo, commit, converter_source, checktool |
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12 |
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13 class convert_git(converter_source): |
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14 # Windows does not support GIT_DIR= construct while other systems |
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15 # cannot remove environment variable. Just assume none have |
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16 # both issues. |
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17 if hasattr(os, 'unsetenv'): |
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18 def gitcmd(self, s): |
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19 prevgitdir = os.environ.get('GIT_DIR') |
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20 os.environ['GIT_DIR'] = self.path |
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21 try: |
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22 return util.popen(s, 'rb') |
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23 finally: |
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24 if prevgitdir is None: |
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25 del os.environ['GIT_DIR'] |
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26 else: |
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27 os.environ['GIT_DIR'] = prevgitdir |
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28 else: |
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29 def gitcmd(self, s): |
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30 return util.popen('GIT_DIR=%s %s' % (self.path, s), 'rb') |
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31 |
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32 def __init__(self, ui, path, rev=None): |
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33 super(convert_git, self).__init__(ui, path, rev=rev) |
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34 |
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35 if os.path.isdir(path + "/.git"): |
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36 path += "/.git" |
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37 if not os.path.exists(path + "/objects"): |
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38 raise NoRepo("%s does not look like a Git repo" % path) |
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39 |
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40 checktool('git', 'git') |
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41 |
316 | 42 self.path = path |
43 | |
44 def getheads(self): | |
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45 if not self.rev: |
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46 return self.gitcmd('git rev-parse --branches --remotes').read().splitlines() |
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47 else: |
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48 fh = self.gitcmd("git rev-parse --verify %s" % self.rev) |
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49 return [fh.read()[:-1]] |
316 | 50 |
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51 def catfile(self, rev, type): |
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52 if rev == "0" * 40: raise IOError() |
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53 fh = self.gitcmd("git cat-file %s %s" % (type, rev)) |
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54 return fh.read() |
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55 |
316 | 56 def getfile(self, name, rev): |
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57 return self.catfile(rev, "blob") |
316 | 58 |
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59 def getmode(self, name, rev): |
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60 return self.modecache[(name, rev)] |
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61 |
316 | 62 def getchanges(self, version): |
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63 self.modecache = {} |
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64 fh = self.gitcmd("git diff-tree -z --root -m -r %s" % version) |
316 | 65 changes = [] |
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66 seen = set() |
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67 entry = None |
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68 for l in fh.read().split('\x00'): |
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69 if not entry: |
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70 if not l.startswith(':'): |
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71 continue |
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72 entry = l |
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73 continue |
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74 f = l |
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75 if f not in seen: |
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76 seen.add(f) |
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77 entry = entry.split() |
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78 h = entry[3] |
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79 p = (entry[1] == "100755") |
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80 s = (entry[1] == "120000") |
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81 self.modecache[(f, h)] = (p and "x") or (s and "l") or "" |
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82 changes.append((f, h)) |
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83 entry = None |
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84 return (changes, {}) |
316 | 85 |
86 def getcommit(self, version): | |
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87 c = self.catfile(version, "commit") # read the commit hash |
316 | 88 end = c.find("\n\n") |
89 message = c[end+2:] | |
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90 message = self.recode(message) |
316 | 91 l = c[:end].splitlines() |
92 parents = [] | |
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93 author = committer = None |
316 | 94 for e in l[1:]: |
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95 n, v = e.split(" ", 1) |
316 | 96 if n == "author": |
97 p = v.split() | |
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98 tm, tz = p[-2:] |
316 | 99 author = " ".join(p[:-2]) |
100 if author[0] == "<": author = author[1:-1] | |
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101 author = self.recode(author) |
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102 if n == "committer": |
431 | 103 p = v.split() |
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104 tm, tz = p[-2:] |
431 | 105 committer = " ".join(p[:-2]) |
106 if committer[0] == "<": committer = committer[1:-1] | |
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107 committer = self.recode(committer) |
316 | 108 if n == "parent": parents.append(v) |
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109 |
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110 if committer and committer != author: |
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111 message += "\ncommitter: %s\n" % committer |
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112 tzs, tzh, tzm = tz[-5:-4] + "1", tz[-4:-2], tz[-2:] |
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113 tz = -int(tzs) * (int(tzh) * 3600 + int(tzm)) |
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114 date = tm + " " + str(tz) |
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115 |
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116 c = commit(parents=parents, date=date, author=author, desc=message, |
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117 rev=version) |
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118 return c |
316 | 119 |
694 | 120 def gettags(self): |
121 tags = {} | |
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122 fh = self.gitcmd('git ls-remote --tags "%s"' % self.path) |
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123 prefix = 'refs/tags/' |
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124 for line in fh: |
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125 line = line.strip() |
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126 if not line.endswith("^{}"): |
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127 continue |
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128 node, tag = line.split(None, 1) |
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129 if not tag.startswith(prefix): |
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130 continue |
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131 tag = tag[len(prefix):-3] |
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132 tags[tag] = node |
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133 |
694 | 134 return tags |
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135 |
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136 def getchangedfiles(self, version, i): |
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137 changes = [] |
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138 if i is None: |
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convert: use git executable only, with subcommands
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139 fh = self.gitcmd("git diff-tree --root -m -r %s" % version) |
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140 for l in fh: |
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141 if "\t" not in l: |
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142 continue |
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143 m, f = l[:-1].split("\t") |
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144 changes.append(f) |
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145 fh.close() |
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146 else: |
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147 fh = self.gitcmd('git diff-tree --name-only --root -r %s "%s^%s" --' |
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148 % (version, version, i+1)) |
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149 changes = [f.rstrip('\n') for f in fh] |
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150 fh.close() |
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151 |
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152 return changes |