Mercurial > treepkg > treepkg
annotate treepkg/git.py @ 569:aaeca9cf0143
Fix variable name
author | Bjoern Ricks <bricks@intevation.de> |
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date | Fri, 02 Sep 2011 11:20:20 +0000 |
parents | bf8114a76224 |
children | 44c0f8404983 |
rev | line source |
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501
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Fix typo in a comment
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1 # Copyright (C) 2010 by Intevation GmbH |
321
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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 |
568 | 30 def __init__(self, url, branch=None, logger=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 |
569 | 39 self.logger = logger |
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40 if not branch: |
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41 # as default track master as local-master |
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42 self.local_branch = "local-master" |
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43 self.branch = "master" |
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44 else: |
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45 self.local_branch = branch |
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46 self.branch = branch |
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47 if ":" in self.branch: |
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48 branches = self.branch.split(":") |
557 | 49 self.local_branch = branches[0] |
50 self.branch = branches[1] | |
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51 |
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52 def checkout(self, localdir): |
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53 """Clones the repository at url into the localdir""" |
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54 run.call(cmdexpand("git clone -q $url $localdir", **locals())) |
568 | 55 if self.branch: |
557 | 56 self.checkout_branch(localdir) |
57 | |
58 def checkout_branch(self, localdir): | |
568 | 59 self.log_info("Switching to local branch '%s' for branch '%s'" %\ |
60 (self.local_branch, self.branch)) | |
557 | 61 run.call(cmdexpand("git checkout -q --track -b $local $branch", |
62 branch=self.branch, local=self.local_branch), cwd=localdir) | |
63 | |
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64 |
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65 def export(self, localdir, destdir): |
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66 """Exports the working copy in localdir to destdir""" |
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67 dest = destdir + os.sep |
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68 run.call(cmdexpand("git checkout-index -a -f --prefix=$dest", dest=dest), |
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69 cwd=localdir) |
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70 |
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71 def copy(self, localdir, destdir): |
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72 """Copies the working copy to destdir (including .git dir)""" |
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73 shutils.copytree(localdir, destdir) |
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74 |
557 | 75 def update(self, localdir): |
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76 """Runs git pull on the localdir.""" |
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77 run.call(cmdexpand("git pull -q"), cwd=localdir) |
557 | 78 output = capture_output(cmdexpand("git branch"), cwd=localdir) |
79 branches = output.splitlines() | |
80 cur_branch = None | |
81 all_branches = [] | |
82 for tbranch in branches: | |
83 tbranch = tbranch.strip() | |
84 if tbranch.startswith("*"): | |
85 cur_branch = tbranch[2:] | |
561 | 86 tbranch = cur_branch |
557 | 87 all_branches.append(tbranch) |
88 if not self.local_branch in all_branches: | |
89 self.checkout_branch(localdir) | |
568 | 90 self.log_info("Current branch is '%s'" % cur_branch) |
557 | 91 # TODO: check if self.local_branch is curbranch |
92 # doesn't hurt if a checkout is done on the current branch | |
93 if self.branch: | |
568 | 94 self.log_info("Switching to local branch '%s'" % self.local_branch) |
557 | 95 run.call(cmdexpand("git checkout -q $branch", branch=self.local_branch), |
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96 cwd=localdir) |
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97 |
568 | 98 def log_info(self, *args): |
99 if self.logger is not None: | |
100 self.logger.info(*args) | |
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101 |
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102 def last_changed_revision(self, localdir): |
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103 """Returns the SHA1 sum of the latest commit in the working copy in localdir""" |
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104 output = run.capture_output(cmdexpand("git rev-parse HEAD"), |
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105 cwd=localdir) |
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106 if output is None: |
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107 raise GitError("Cannot determine last changed revision for %r" |
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108 % git_working_copy) |
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109 return output.strip() |
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110 |
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111 def check_working_copy(self, localdir): |
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112 """FIXME STUB: Not implemented for git""" |
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113 return None |
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114 |
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115 class GitWorkingCopy(object): |
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116 |
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117 """Represents a checkout of a git repository""" |
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118 |
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119 def __init__(self, repository, localdir, logger=None): |
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120 """ |
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121 Initialize the working copy. |
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122 Parameters: |
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123 repository -- The GitRepository instance describing the |
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124 repository |
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125 localdir -- The directory for the working copy |
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126 logger -- logging object to use for some info/debug messages |
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127 """ |
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128 self.repository = repository |
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129 self.localdir = localdir |
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130 self.logger = logger |
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131 |
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132 def log_info(self, *args): |
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133 if self.logger is not None: |
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134 self.logger.info(*args) |
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135 |
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136 def update_or_checkout(self, revision=0): |
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137 """Updates the working copy or creates by checking out the repository. |
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138 Revision number included for compatibility |
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139 """ |
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140 gitdir = os.path.join(self.localdir, ".git") |
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141 branch = self.repository.branch |
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142 if os.path.exists(gitdir): |
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143 self.log_info("Updating the working copy in %r for repo " \ |
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144 "%s and branch %s", self.localdir, |
546 | 145 self.repository.url, |
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146 branch) |
557 | 147 self.repository.update(self.localdir) |
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148 else: |
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149 # TODO: better check if localdir contains files |
520 | 150 if os.path.exists(self.localdir): |
519
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151 raise GitError("Working copy dir %s already exists. " \ |
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152 " files. Can't checkout from %s" % (self.localdir, |
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153 self.repository.url)) |
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154 self.log_info("The working copy in %r doesn't exist yet." |
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155 " Checking out branch %s from %r", |
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156 self.localdir, branch, self.repository.url) |
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157 self.repository.checkout(self.localdir) |
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158 |
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159 def export(self, destdir): |
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160 """Exports the working copy to destdir""" |
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161 self.repository.export(self.localdir, destdir) |
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162 |
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163 def export_tag(self, url, destdir, revision=None): |
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164 """Export tag to destir """ |
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165 self.export(destdir) |
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166 |
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167 def last_changed_revision(self): |
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168 """Returns the last changed rev of the working copy""" |
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169 return self.get_revision() |
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170 |
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171 def list_tags(self, pattern): |
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172 output = run.capture_output(cmdexpand("git tag -l $pattern", |
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173 pattern=pattern), cwd=self.localdir) |
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174 return output.splitlines() |
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175 |
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176 def get_revision(self, refname="HEAD"): |
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177 """Return the SHA1 sum of the latest commit""" |
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178 output = run.capture_output(cmdexpand("git rev-parse $refname", |
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179 refname=refname), cwd=self.localdir) |
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180 if output is None: |
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181 raise GitError("Cannot determine revision for %r" |
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182 % self.localdir) |
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183 return output.strip() |
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184 |
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185 def get_short_revision(self, refname="HEAD"): |
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186 """Return the short SHA1 sum of the latest commit""" |
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187 revision = self.get_revision(refname) |
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188 return revision[:7] |
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189 |
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190 class TagDetector: |
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191 |
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192 """Class to detect tags from a git repository |
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193 |
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194 The tags are found using the parameters: |
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195 url -- The url of the git repository to use |
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196 pattern -- A regular expression matching the tags |
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197 """ |
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198 |
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199 def __init__(self, url, pattern, localdir): |
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200 self.url = url |
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201 self.pattern = pattern |
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202 repo = GitRepository(url) |
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203 self.workingcopy = GitWorkingCopy(repo, localdir) |
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204 |
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205 def list_tags(self): |
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206 self.workingcopy.update_or_checkout() |
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207 tags = self.workingcopy.list_tags(self.pattern) |
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208 return sorted(tags) |
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209 |
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210 def newest_tag_revision(self): |
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211 candidates = self.list_tags() |
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212 urlrev = (None, None) |
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213 if candidates: |
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214 newest = candidates[-1] |
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215 try: |
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216 rev = self.workingcopy.get_revision(newest) |
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217 urlrev = (newest, rev) |
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218 except GitError: |
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219 pass |
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220 return urlrev |
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221 |
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222 def tag_pkg_parameters(self, tag_name): |
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223 # FIXME: Don't hardcore regex |
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224 #match = re.search(r"enterprise[^.]*\.[^.]*\." |
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225 match = re.search(r"enterprise[^.]*\.[^.]*" |
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226 r"(?P<date>[0-9]{8})", |
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227 tag_name) |
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228 if match: |
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229 date = match.group("date") |
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230 return (date, 1) |
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231 else: |
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232 raise GitError("Cannot determine tag parameters from %s" |
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233 % tag_name) |