Mercurial > treepkg > treepkg
annotate treepkg/git.py @ 562:e188e780977b
Use local-master as default local branch name if no branch is set in the config
If a branch is set use branch name also as local branch name
author | Bjoern Ricks <bricks@intevation.de> |
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date | Fri, 02 Sep 2011 09:47:42 +0000 |
parents | 1f7746e2288e |
children | bf8114a76224 |
rev | line source |
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501
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1 # Copyright (C) 2010 by Intevation GmbH |
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2 # Authors: |
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3 # Andre Heinecke <aheinecke@intevation.de> |
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4 # |
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5 # This program is free software under the GPL (>=v2) |
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6 # Read the file COPYING coming with the software for details. |
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7 |
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8 """Collection of Git utility code""" |
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9 |
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10 import os |
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11 import shutil |
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12 import re |
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13 import StringIO |
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14 |
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15 import run |
560 | 16 |
17 from run import capture_output | |
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18 from cmdexpand import cmdexpand |
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19 from util import extract_value_for_key |
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20 |
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21 |
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22 class GitError(Exception): |
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23 |
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24 """Base class for Git specific errors raised by TreePKG""" |
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25 |
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26 class GitRepository(object): |
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27 |
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28 """Describes a git repository""" |
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29 |
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30 def __init__(self, url, branch=None): |
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31 """Initialize the git repository description |
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32 Parameters: |
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33 url -- The url of the repository |
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34 |
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35 branch -- The name of the remote Branch to track |
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36 defaults to master |
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37 """ |
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38 self.url = url |
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39 if not branch: |
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40 # as default track master as local-master |
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41 self.local_branch = "local-master" |
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42 self.branch = "master" |
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43 else: |
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44 self.local_branch = branch |
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45 self.branch = branch |
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46 if ":" in self.branch: |
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47 branches = self.branch.split(":") |
557 | 48 self.local_branch = branches[0] |
49 self.branch = branches[1] | |
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50 |
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51 def checkout(self, localdir): |
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52 """Clones the repository at url into the localdir""" |
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53 run.call(cmdexpand("git clone -q $url $localdir", **locals())) |
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54 if branch: |
557 | 55 self.checkout_branch(localdir) |
56 | |
57 def checkout_branch(self, localdir): | |
58 run.call(cmdexpand("git checkout -q --track -b $local $branch", | |
59 branch=self.branch, local=self.local_branch), cwd=localdir) | |
60 | |
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61 |
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62 def export(self, localdir, destdir): |
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63 """Exports the working copy in localdir to destdir""" |
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64 dest = destdir + os.sep |
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65 run.call(cmdexpand("git checkout-index -a -f --prefix=$dest", dest=dest), |
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66 cwd=localdir) |
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67 |
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68 def copy(self, localdir, destdir): |
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69 """Copies the working copy to destdir (including .git dir)""" |
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70 shutils.copytree(localdir, destdir) |
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71 |
557 | 72 def update(self, localdir): |
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73 """Runs git pull on the localdir.""" |
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74 run.call(cmdexpand("git pull -q"), cwd=localdir) |
557 | 75 output = capture_output(cmdexpand("git branch"), cwd=localdir) |
76 branches = output.splitlines() | |
77 cur_branch = None | |
78 all_branches = [] | |
79 for tbranch in branches: | |
80 tbranch = tbranch.strip() | |
81 if tbranch.startswith("*"): | |
82 cur_branch = tbranch[2:] | |
561 | 83 tbranch = cur_branch |
557 | 84 all_branches.append(tbranch) |
85 if not self.local_branch in all_branches: | |
86 self.checkout_branch(localdir) | |
87 # TODO: check if self.local_branch is curbranch | |
88 # doesn't hurt if a checkout is done on the current branch | |
89 if self.branch: | |
90 run.call(cmdexpand("git checkout -q $branch", branch=self.local_branch), | |
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91 cwd=localdir) |
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92 |
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93 |
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94 def last_changed_revision(self, localdir): |
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95 """Returns the SHA1 sum of the latest commit in the working copy in localdir""" |
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96 output = run.capture_output(cmdexpand("git rev-parse HEAD"), |
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97 cwd=localdir) |
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98 if output is None: |
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99 raise GitError("Cannot determine last changed revision for %r" |
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100 % git_working_copy) |
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101 return output.strip() |
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102 |
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103 def check_working_copy(self, localdir): |
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104 """FIXME STUB: Not implemented for git""" |
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105 return None |
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106 |
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107 class GitWorkingCopy(object): |
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108 |
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109 """Represents a checkout of a git repository""" |
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110 |
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111 def __init__(self, repository, localdir, logger=None): |
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112 """ |
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113 Initialize the working copy. |
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114 Parameters: |
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115 repository -- The GitRepository instance describing the |
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116 repository |
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117 localdir -- The directory for the working copy |
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118 logger -- logging object to use for some info/debug messages |
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119 """ |
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120 self.repository = repository |
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121 self.localdir = localdir |
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122 self.logger = logger |
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123 |
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124 def log_info(self, *args): |
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125 if self.logger is not None: |
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126 self.logger.info(*args) |
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127 |
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128 def update_or_checkout(self, revision=0): |
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129 """Updates the working copy or creates by checking out the repository. |
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130 Revision number included for compatibility |
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131 """ |
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132 gitdir = os.path.join(self.localdir, ".git") |
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133 branch = self.repository.branch |
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134 if os.path.exists(gitdir): |
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135 self.log_info("Updating the working copy in %r for repo " \ |
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136 "%s and branch %s", self.localdir, |
546 | 137 self.repository.url, |
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138 branch) |
557 | 139 self.repository.update(self.localdir) |
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140 else: |
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141 # TODO: better check if localdir contains files |
520 | 142 if os.path.exists(self.localdir): |
519
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143 raise GitError("Working copy dir %s already exists. " \ |
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144 " files. Can't checkout from %s" % (self.localdir, |
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145 self.repository.url)) |
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146 self.log_info("The working copy in %r doesn't exist yet." |
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147 " Checking out branch %s from %r", |
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148 self.localdir, branch, self.repository.url) |
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149 self.repository.checkout(self.localdir) |
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150 |
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151 def export(self, destdir): |
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152 """Exports the working copy to destdir""" |
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153 self.repository.export(self.localdir, destdir) |
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154 |
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155 def export_tag(self, url, destdir, revision=None): |
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156 """Export tag to destir """ |
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157 self.export(destdir) |
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158 |
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159 def last_changed_revision(self): |
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160 """Returns the last changed rev of the working copy""" |
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161 return self.get_revision() |
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162 |
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163 def list_tags(self, pattern): |
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164 output = run.capture_output(cmdexpand("git tag -l $pattern", |
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165 pattern=pattern), cwd=self.localdir) |
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166 return output.splitlines() |
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167 |
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168 def get_revision(self, refname="HEAD"): |
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169 """Return the SHA1 sum of the latest commit""" |
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170 output = run.capture_output(cmdexpand("git rev-parse $refname", |
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171 refname=refname), cwd=self.localdir) |
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172 if output is None: |
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173 raise GitError("Cannot determine revision for %r" |
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174 % self.localdir) |
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175 return output.strip() |
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176 |
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177 def get_short_revision(self, refname="HEAD"): |
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178 """Return the short SHA1 sum of the latest commit""" |
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179 revision = self.get_revision(refname) |
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180 return revision[:7] |
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181 |
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182 class TagDetector: |
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183 |
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184 """Class to detect tags from a git repository |
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185 |
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186 The tags are found using the parameters: |
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187 url -- The url of the git repository to use |
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188 pattern -- A regular expression matching the tags |
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189 """ |
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190 |
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191 def __init__(self, url, pattern, localdir): |
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192 self.url = url |
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193 self.pattern = pattern |
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194 repo = GitRepository(url) |
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195 self.workingcopy = GitWorkingCopy(repo, localdir) |
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196 |
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197 def list_tags(self): |
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198 self.workingcopy.update_or_checkout() |
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199 tags = self.workingcopy.list_tags(self.pattern) |
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200 return sorted(tags) |
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201 |
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202 def newest_tag_revision(self): |
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203 candidates = self.list_tags() |
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204 urlrev = (None, None) |
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205 if candidates: |
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206 newest = candidates[-1] |
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207 try: |
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208 rev = self.workingcopy.get_revision(newest) |
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209 urlrev = (newest, rev) |
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210 except GitError: |
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211 pass |
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212 return urlrev |
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213 |
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214 def tag_pkg_parameters(self, tag_name): |
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215 # FIXME: Don't hardcore regex |
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216 #match = re.search(r"enterprise[^.]*\.[^.]*\." |
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217 match = re.search(r"enterprise[^.]*\.[^.]*" |
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218 r"(?P<date>[0-9]{8})", |
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219 tag_name) |
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220 if match: |
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221 date = match.group("date") |
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222 return (date, 1) |
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223 else: |
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224 raise GitError("Cannot determine tag parameters from %s" |
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225 % tag_name) |