Mercurial > hg
annotate hgext/convert/git.py @ 20373:e8203629371b
convert: add mapname parameter to checkrevformat
Upcoming patches will add new map files so we change the calling sequence of
checkrevformat so that error messages will let the user know which file has the
wrong rev format.
author | Sean Farley <sean.michael.farley@gmail.com> |
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date | Tue, 21 Jan 2014 11:34:55 -0600 |
parents | 478a04605ce1 |
children | a204fd9b5ba9 3420346174b1 |
rev | line source |
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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 |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 import os |
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9 import subprocess |
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10 from mercurial import util, config |
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11 from mercurial.node import hex, nullid |
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12 from mercurial.i18n import _ |
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13 |
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14 from common import NoRepo, commit, converter_source, checktool |
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15 |
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16 class submodule(object): |
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17 def __init__(self, path, node, url): |
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18 self.path = path |
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19 self.node = node |
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20 self.url = url |
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21 |
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22 def hgsub(self): |
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23 return "%s = [git]%s" % (self.path, self.url) |
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24 |
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25 def hgsubstate(self): |
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26 return "%s %s" % (self.node, self.path) |
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27 |
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28 class convert_git(converter_source): |
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29 # Windows does not support GIT_DIR= construct while other systems |
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30 # cannot remove environment variable. Just assume none have |
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31 # both issues. |
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32 if util.safehasattr(os, 'unsetenv'): |
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33 def gitopen(self, s, err=None): |
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34 prevgitdir = os.environ.get('GIT_DIR') |
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35 os.environ['GIT_DIR'] = self.path |
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36 try: |
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37 if err == subprocess.PIPE: |
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38 (stdin, stdout, stderr) = util.popen3(s) |
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39 return stdout |
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40 elif err == subprocess.STDOUT: |
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41 return self.popen_with_stderr(s) |
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42 else: |
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43 return util.popen(s, 'rb') |
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44 finally: |
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45 if prevgitdir is None: |
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46 del os.environ['GIT_DIR'] |
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47 else: |
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48 os.environ['GIT_DIR'] = prevgitdir |
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49 else: |
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50 def gitopen(self, s, err=None): |
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51 if err == subprocess.PIPE: |
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52 (sin, so, se) = util.popen3('GIT_DIR=%s %s' % (self.path, s)) |
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53 return so |
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54 elif err == subprocess.STDOUT: |
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55 return self.popen_with_stderr(s) |
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56 else: |
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57 return util.popen('GIT_DIR=%s %s' % (self.path, s), 'rb') |
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58 |
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59 def popen_with_stderr(self, s): |
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60 p = subprocess.Popen(s, shell=True, bufsize=-1, |
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61 close_fds=util.closefds, |
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62 stdin=subprocess.PIPE, |
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63 stdout=subprocess.PIPE, |
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64 stderr=subprocess.STDOUT, |
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65 universal_newlines=False, |
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66 env=None) |
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67 return p.stdout |
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68 |
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69 def gitread(self, s): |
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70 fh = self.gitopen(s) |
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71 data = fh.read() |
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72 return data, fh.close() |
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73 |
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74 def __init__(self, ui, path, rev=None): |
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75 super(convert_git, self).__init__(ui, path, rev=rev) |
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76 |
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77 if os.path.isdir(path + "/.git"): |
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78 path += "/.git" |
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79 if not os.path.exists(path + "/objects"): |
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80 raise NoRepo(_("%s does not look like a Git repository") % path) |
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81 |
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82 checktool('git', 'git') |
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83 |
316 | 84 self.path = path |
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85 self.submodules = [] |
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87 def getheads(self): | |
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88 if not self.rev: |
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89 heads, ret = self.gitread('git rev-parse --branches --remotes') |
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90 heads = heads.splitlines() |
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91 else: |
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92 heads, ret = self.gitread("git rev-parse --verify %s" % self.rev) |
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93 heads = [heads[:-1]] |
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94 if ret: |
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95 raise util.Abort(_('cannot retrieve git heads')) |
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96 return heads |
316 | 97 |
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98 def catfile(self, rev, type): |
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99 if rev == hex(nullid): |
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100 raise IOError |
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101 data, ret = self.gitread("git cat-file %s %s" % (type, rev)) |
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102 if ret: |
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103 raise util.Abort(_('cannot read %r object at %s') % (type, rev)) |
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104 return data |
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105 |
316 | 106 def getfile(self, name, rev): |
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107 if name == '.hgsub': |
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108 data = '\n'.join([m.hgsub() for m in self.submoditer()]) |
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109 mode = '' |
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110 elif name == '.hgsubstate': |
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111 data = '\n'.join([m.hgsubstate() for m in self.submoditer()]) |
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112 mode = '' |
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113 else: |
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114 data = self.catfile(rev, "blob") |
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115 mode = self.modecache[(name, rev)] |
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116 return data, mode |
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117 |
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118 def submoditer(self): |
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119 null = hex(nullid) |
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120 for m in sorted(self.submodules, key=lambda p: p.path): |
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121 if m.node != null: |
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122 yield m |
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123 |
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124 def parsegitmodules(self, content): |
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125 """Parse the formatted .gitmodules file, example file format: |
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126 [submodule "sub"]\n |
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127 \tpath = sub\n |
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128 \turl = git://giturl\n |
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129 """ |
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130 self.submodules = [] |
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131 c = config.config() |
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132 # Each item in .gitmodules starts with \t that cant be parsed |
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133 c.parse('.gitmodules', content.replace('\t','')) |
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134 for sec in c.sections(): |
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135 s = c[sec] |
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136 if 'url' in s and 'path' in s: |
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137 self.submodules.append(submodule(s['path'], '', s['url'])) |
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138 |
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139 def retrievegitmodules(self, version): |
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140 modules, ret = self.gitread("git show %s:%s" % (version, '.gitmodules')) |
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141 if ret: |
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142 raise util.Abort(_('cannot read submodules config file in %s') % |
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143 version) |
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144 self.parsegitmodules(modules) |
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145 for m in self.submodules: |
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146 node, ret = self.gitread("git rev-parse %s:%s" % (version, m.path)) |
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147 if ret: |
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148 continue |
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149 m.node = node.strip() |
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150 |
316 | 151 def getchanges(self, version): |
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152 self.modecache = {} |
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153 fh = self.gitopen("git diff-tree -z --root -m -r %s" % version) |
316 | 154 changes = [] |
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155 seen = set() |
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156 entry = None |
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157 subexists = False |
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158 for l in fh.read().split('\x00'): |
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159 if not entry: |
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160 if not l.startswith(':'): |
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161 continue |
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162 entry = l |
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163 continue |
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164 f = l |
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165 if f not in seen: |
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166 seen.add(f) |
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167 entry = entry.split() |
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168 h = entry[3] |
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169 p = (entry[1] == "100755") |
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170 s = (entry[1] == "120000") |
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171 |
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172 if f == '.gitmodules': |
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173 subexists = True |
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174 changes.append(('.hgsub', '')) |
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175 elif entry[1] == '160000' or entry[0] == ':160000': |
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176 subexists = True |
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177 else: |
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178 self.modecache[(f, h)] = (p and "x") or (s and "l") or "" |
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179 changes.append((f, h)) |
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180 entry = None |
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181 if fh.close(): |
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182 raise util.Abort(_('cannot read changes in %s') % version) |
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183 |
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184 if subexists: |
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185 self.retrievegitmodules(version) |
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186 changes.append(('.hgsubstate', '')) |
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187 return (changes, {}) |
316 | 188 |
189 def getcommit(self, version): | |
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190 c = self.catfile(version, "commit") # read the commit hash |
316 | 191 end = c.find("\n\n") |
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192 message = c[end + 2:] |
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193 message = self.recode(message) |
316 | 194 l = c[:end].splitlines() |
195 parents = [] | |
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196 author = committer = None |
316 | 197 for e in l[1:]: |
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198 n, v = e.split(" ", 1) |
316 | 199 if n == "author": |
200 p = v.split() | |
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201 tm, tz = p[-2:] |
316 | 202 author = " ".join(p[:-2]) |
203 if author[0] == "<": author = author[1:-1] | |
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204 author = self.recode(author) |
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205 if n == "committer": |
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207 tm, tz = p[-2:] |
431 | 208 committer = " ".join(p[:-2]) |
209 if committer[0] == "<": committer = committer[1:-1] | |
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210 committer = self.recode(committer) |
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211 if n == "parent": |
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212 parents.append(v) |
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213 |
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214 if committer and committer != author: |
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215 message += "\ncommitter: %s\n" % committer |
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216 tzs, tzh, tzm = tz[-5:-4] + "1", tz[-4:-2], tz[-2:] |
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217 tz = -int(tzs) * (int(tzh) * 3600 + int(tzm)) |
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218 date = tm + " " + str(tz) |
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219 |
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220 c = commit(parents=parents, date=date, author=author, desc=message, |
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221 rev=version) |
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222 return c |
316 | 223 |
694 | 224 def gettags(self): |
225 tags = {} | |
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226 alltags = {} |
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227 fh = self.gitopen('git ls-remote --tags "%s"' % self.path, |
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228 err=subprocess.STDOUT) |
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229 prefix = 'refs/tags/' |
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230 |
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231 # Build complete list of tags, both annotated and bare ones |
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232 for line in fh: |
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233 line = line.strip() |
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234 if line.startswith("error:") or line.startswith("fatal:"): |
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235 raise util.Abort(_('cannot read tags from %s') % self.path) |
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236 node, tag = line.split(None, 1) |
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237 if not tag.startswith(prefix): |
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238 continue |
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239 alltags[tag[len(prefix):]] = node |
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240 if fh.close(): |
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241 raise util.Abort(_('cannot read tags from %s') % self.path) |
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242 |
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243 # Filter out tag objects for annotated tag refs |
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244 for tag in alltags: |
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245 if tag.endswith('^{}'): |
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246 tags[tag[:-3]] = alltags[tag] |
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247 else: |
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248 if tag + '^{}' in alltags: |
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249 continue |
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250 else: |
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251 tags[tag] = alltags[tag] |
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252 |
694 | 253 return tags |
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254 |
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255 def getchangedfiles(self, version, i): |
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256 changes = [] |
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257 if i is None: |
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258 fh = self.gitopen("git diff-tree --root -m -r %s" % version) |
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259 for l in fh: |
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260 if "\t" not in l: |
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261 continue |
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262 m, f = l[:-1].split("\t") |
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263 changes.append(f) |
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264 else: |
16683 | 265 fh = self.gitopen('git diff-tree --name-only --root -r %s ' |
266 '"%s^%s" --' % (version, version, i + 1)) | |
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267 changes = [f.rstrip('\n') for f in fh] |
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268 if fh.close(): |
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269 raise util.Abort(_('cannot read changes in %s') % version) |
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270 |
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271 return changes |
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272 |
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273 def getbookmarks(self): |
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274 bookmarks = {} |
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275 |
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276 # Interesting references in git are prefixed |
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277 prefix = 'refs/heads/' |
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278 prefixlen = len(prefix) |
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279 |
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280 # factor two commands |
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281 gitcmd = { 'remote/': 'git ls-remote --heads origin', |
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282 '': 'git show-ref'} |
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283 |
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284 # Origin heads |
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285 for reftype in gitcmd: |
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286 try: |
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287 fh = self.gitopen(gitcmd[reftype], err=subprocess.PIPE) |
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288 for line in fh: |
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289 line = line.strip() |
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290 rev, name = line.split(None, 1) |
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291 if not name.startswith(prefix): |
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292 continue |
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293 name = '%s%s' % (reftype, name[prefixlen:]) |
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294 bookmarks[name] = rev |
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295 except Exception: |
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296 pass |
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297 |
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298 return bookmarks |
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299 |
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300 def checkrevformat(self, revstr, mapname='splicemap'): |
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301 """ git revision string is a 40 byte hex """ |
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302 self.checkhexformat(revstr, mapname) |
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303 |