Mercurial > hg > mercurial-crew-with-dirclash

annotate hgext/convert/git.py @ 5229:149742a628fd

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convert: fix issue702 about GIT_DIR= construct unsupported under Windows.
author Patrick Mezard <pmezard@gmail.com>
date Sun, 26 Aug 2007 14:51:27 +0200
parents 39e6deaa8b81
children 7d3dcdd92a1a 9d7052f17d77
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # git support for the convert extension
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2
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3 import os
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4
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5 from common import NoRepo, commit, converter_source
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6
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7 def recode(s):
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8 try:
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9 return s.decode("utf-8").encode("utf-8")
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10 except:
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11 try:
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12 return s.decode("latin-1").encode("utf-8")
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13 except:
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14 return s.decode("utf-8", "replace").encode("utf-8")
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15
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16 class convert_git(converter_source):
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17 # Windows does not support GIT_DIR= construct while other systems
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18 # cannot remove environment variable. Just assume none have
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19 # both issues.
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20 if hasattr(os, 'unsetenv'):
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21 def gitcmd(self, s):
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22 prevgitdir = os.environ.get('GIT_DIR')
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23 os.environ['GIT_DIR'] = self.path
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24 try:
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25 return os.popen(s)
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26 finally:
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27 if prevgitdir is None:
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28 del os.environ['GIT_DIR']
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29 else:
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30 os.environ['GIT_DIR'] = prevgitdir
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31 else:
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32 def gitcmd(self, s):
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33 return os.popen('GIT_DIR=%s %s' % (self.path, s))
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34
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35 def __init__(self, ui, path):
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36 if os.path.isdir(path + "/.git"):
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37 path += "/.git"
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38 self.path = path
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39 self.ui = ui
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40 if not os.path.exists(path + "/objects"):
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41 raise NoRepo("couldn't open GIT repo %s" % path)
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42
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43 def getheads(self):
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44 fh = self.gitcmd("git-rev-parse --verify HEAD")
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45 return [fh.read()[:-1]]
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46
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47 def catfile(self, rev, type):
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48 if rev == "0" * 40: raise IOError()
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49 fh = self.gitcmd("git-cat-file %s %s 2>/dev/null" % (type, rev))
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50 return fh.read()
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51
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52 def getfile(self, name, rev):
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53 return self.catfile(rev, "blob")
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54
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55 def getmode(self, name, rev):
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56 return self.modecache[(name, rev)]
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57
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58 def getchanges(self, version):
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59 self.modecache = {}
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60 fh = self.gitcmd("git-diff-tree --root -m -r %s" % version)
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61 changes = []
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62 for l in fh:
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63 if "\t" not in l: continue
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64 m, f = l[:-1].split("\t")
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65 m = m.split()
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66 h = m[3]
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67 p = (m[1] == "100755")
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68 s = (m[1] == "120000")
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69 self.modecache[(f, h)] = (p and "x") or (s and "l") or ""
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70 changes.append((f, h))
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71 return changes
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72
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73 def getcommit(self, version):
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74 c = self.catfile(version, "commit") # read the commit hash
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75 end = c.find("\n\n")
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76 message = c[end+2:]
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77 message = recode(message)
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78 l = c[:end].splitlines()
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79 manifest = l[0].split()[1]
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80 parents = []
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81 for e in l[1:]:
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82 n, v = e.split(" ", 1)
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83 if n == "author":
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84 p = v.split()
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85 tm, tz = p[-2:]
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86 author = " ".join(p[:-2])
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87 if author[0] == "<": author = author[1:-1]
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88 author = recode(author)
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89 if n == "committer":
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90 p = v.split()
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91 tm, tz = p[-2:]
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92 committer = " ".join(p[:-2])
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93 if committer[0] == "<": committer = committer[1:-1]
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94 committer = recode(committer)
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95 message += "\ncommitter: %s\n" % committer
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96 if n == "parent": parents.append(v)
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97
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98 tzs, tzh, tzm = tz[-5:-4] + "1", tz[-4:-2], tz[-2:]
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99 tz = -int(tzs) * (int(tzh) * 3600 + int(tzm))
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100 date = tm + " " + str(tz)
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101 author = author or "unknown"
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102
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103 c = commit(parents=parents, date=date, author=author, desc=message)
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104 return c
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105
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106 def gettags(self):
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107 tags = {}
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108 fh = self.gitcmd('git-ls-remote --tags "%s" 2>/dev/null' % self.path)
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109 prefix = 'refs/tags/'
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110 for line in fh:
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111 line = line.strip()
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112 if not line.endswith("^{}"):
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113 continue
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114 node, tag = line.split(None, 1)
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115 if not tag.startswith(prefix):
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116 continue
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117 tag = tag[len(prefix):-3]
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118 tags[tag] = node
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119
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120 return tags