Mercurial > treepkg > treepkg
annotate treepkg/git.py @ 546:149d18aca4f7
fix variable name
author | Bjoern Ricks <bricks@intevation.de> |
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date | Wed, 02 Feb 2011 10:00:48 +0000 |
parents | 991bc01ae668 |
children | 70fa7debabed |
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 |
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16 from cmdexpand import cmdexpand |
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17 from util import extract_value_for_key |
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18 |
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19 |
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20 class GitError(Exception): |
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21 |
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22 """Base class for Git specific errors raised by TreePKG""" |
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23 |
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24 def checkout(url, localdir, branch=None): |
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25 """Clones the repository at url into the localdir""" |
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26 run.call(cmdexpand("git clone -q $url $localdir", **locals())) |
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27 if branch: |
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28 run.call(cmdexpand("git checkout -q --track -b local $branch", |
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29 **locals()), cwd=localdir) |
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30 |
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31 def update(localdir, revision=None): |
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32 """Runs git pull on the localdir.""" |
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33 run.call(cmdexpand("git pull -q"), cwd=localdir) |
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34 |
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35 def export(src, dest): |
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36 """Exports the local branch from src to dest""" |
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37 dest = dest + os.sep |
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38 run.call(cmdexpand("git checkout-index -a -f --prefix=$dest", **locals()), |
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39 cwd=src) |
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40 |
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41 def last_changed_revision(git_working_copy): |
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42 """Return the SHA1 sum of the latest commit""" |
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43 output = run.capture_output(cmdexpand("git rev-parse HEAD"), |
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44 cwd=git_working_copy) |
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45 if output is None: |
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46 raise GitError("Cannot determine last changed revision for %r" |
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47 % git_working_copy) |
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48 return output.strip() |
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49 |
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50 class GitRepository(object): |
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51 |
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52 """Describes a git repository""" |
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53 |
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54 def __init__(self, url, branch=None): |
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55 """Initialize the git repository description |
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56 Parameters: |
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57 url -- The url of the repository |
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58 |
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59 branch -- The name of the remote Branch to track |
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60 defaults to master |
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61 """ |
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62 self.url = url |
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63 self.branch = branch |
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64 |
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65 def checkout(self, localdir): |
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66 """Checks out the repository into localdir.""" |
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67 checkout(self.url , localdir, self.branch) |
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68 |
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69 def export(self, localdir, destdir): |
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70 """Exports the working copy in localdir to destdir""" |
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71 export(localdir, destdir) |
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72 |
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73 def last_changed_revision(self, localdir): |
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74 """Returns the last changed revision of the working copy in localdir""" |
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75 return last_changed_revision(localdir) |
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76 |
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77 def check_working_copy(self, localdir): |
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78 """FIXME STUB: Not implemented for git""" |
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79 return None |
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80 |
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81 class GitWorkingCopy(object): |
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82 |
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83 """Represents a checkout of a git repository""" |
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84 |
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85 def __init__(self, repository, localdir, logger=None): |
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86 """ |
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87 Initialize the working copy. |
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88 Parameters: |
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89 repository -- The GitRepository instance describing the |
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90 repository |
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91 localdir -- The directory for the working copy |
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92 logger -- logging object to use for some info/debug messages |
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93 """ |
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94 self.repository = repository |
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95 self.localdir = localdir |
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96 self.logger = logger |
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97 |
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98 def log_info(self, *args): |
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99 if self.logger is not None: |
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100 self.logger.info(*args) |
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101 |
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102 def update_or_checkout(self, revision=0): |
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103 """Updates the working copy or creates by checking out the repository. |
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104 Revision number included for compatibility |
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105 """ |
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106 gitdir = os.path.join(self.localdir, ".git") |
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107 branch = self.repository.branch |
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108 if not branch: |
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109 branch = "master" |
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110 if os.path.exists(gitdir): |
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111 self.log_info("Updating the working copy in %r for repo " \ |
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112 "%s and branch %s", self.localdir, |
546 | 113 self.repository.url, |
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114 branch) |
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115 update(self.localdir, self.repository.branch) |
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116 else: |
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117 # TODO: better check if localdir contains files |
520 | 118 if os.path.exists(self.localdir): |
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119 raise GitError("Working copy dir %s already exists. " \ |
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120 " files. Can't checkout from %s" % (self.localdir, |
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121 self.repository.url)) |
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122 self.log_info("The working copy in %r doesn't exist yet." |
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123 " Checking out branch %s from %r", |
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124 self.localdir, branch, self.repository.url) |
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125 self.repository.checkout(self.localdir) |
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126 |
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127 def export(self, destdir): |
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128 """Exports the working copy to destdir""" |
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129 self.repository.export(self.localdir, destdir) |
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130 |
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131 def export_tag(self, url, destdir, revision=None): |
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132 """Export tag to destir """ |
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133 self.export(destdir) |
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134 |
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135 def last_changed_revision(self): |
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136 """Returns the last changed rev of the working copy""" |
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137 return self.get_revision() |
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138 |
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139 def list_tags(self, pattern): |
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140 output = run.capture_output(cmdexpand("git tag -l $pattern", |
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141 pattern=pattern), cwd=self.localdir) |
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142 return output.splitlines() |
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143 |
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144 def get_revision(self, refname="HEAD"): |
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145 """Return the SHA1 sum of the latest commit""" |
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146 output = run.capture_output(cmdexpand("git rev-parse $refname", |
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147 refname=refname), cwd=self.localdir) |
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148 if output is None: |
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149 raise GitError("Cannot determine revision for %r" |
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150 % self.localdir) |
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151 return output.strip() |
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152 |
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153 def get_short_revision(self, refname="HEAD"): |
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154 """Return the short SHA1 sum of the latest commit""" |
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155 revision = self.get_revision(refname) |
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156 return revision[:7] |
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157 |
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158 class TagDetector: |
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159 |
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160 """Class to detect tags from a git repository |
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161 |
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162 The tags are found using the parameters: |
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163 url -- The url of the git repository to use |
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164 pattern -- A regular expression matching the tags |
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165 """ |
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166 |
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167 def __init__(self, url, pattern, localdir): |
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168 self.url = url |
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169 self.pattern = pattern |
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170 repo = GitRepository(url) |
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171 self.workingcopy = GitWorkingCopy(repo, localdir) |
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172 |
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173 def list_tags(self): |
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174 self.workingcopy.update_or_checkout() |
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175 tags = self.workingcopy.list_tags(self.pattern) |
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176 return sorted(tags) |
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177 |
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178 def newest_tag_revision(self): |
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179 candidates = self.list_tags() |
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180 urlrev = (None, None) |
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181 if candidates: |
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182 newest = candidates[-1] |
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183 try: |
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184 rev = self.workingcopy.get_revision(newest) |
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185 urlrev = (newest, rev) |
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186 except GitError: |
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187 pass |
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188 return urlrev |
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189 |
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190 def tag_pkg_parameters(self, tag_name): |
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191 # FIXME: Don't hardcore regex |
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192 #match = re.search(r"enterprise[^.]*\.[^.]*\." |
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193 match = re.search(r"enterprise[^.]*\.[^.]*" |
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194 r"(?P<date>[0-9]{8})", |
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195 tag_name) |
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196 if match: |
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197 date = match.group("date") |
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198 return (date, 1) |
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199 else: |
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200 raise GitError("Cannot determine tag parameters from %s" |
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201 % tag_name) |