1 #!/usr/bin/python2.5 |
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2 # |
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3 # Copyright 2008 the Melange authors. |
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4 # |
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5 # Licensed under the Apache License, Version 2.0 (the "License"); |
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6 # you may not use this file except in compliance with the License. |
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7 # You may obtain a copy of the License at |
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8 # |
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9 # http://www.apache.org/licenses/LICENSE-2.0 |
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10 # |
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11 # Unless required by applicable law or agreed to in writing, software |
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12 # distributed under the License is distributed on an "AS IS" BASIS, |
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13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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14 # See the License for the specific language governing permissions and |
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15 # limitations under the License. |
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16 |
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17 """Script to make a Google App Engine "image" branch of a Melange application. |
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18 |
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19 For details: |
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20 trunk/scripts/new_branch.py --help |
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21 |
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22 Default values for flags can be specified in valid Python syntax in the |
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23 ~/.soc_scripts_settings file. See settings.py for details. |
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24 """ |
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25 |
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26 __authors__ = [ |
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27 # alphabetical order by last name, please |
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28 '"Todd Larsen" <tlarsen@google.com>', |
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29 ] |
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30 |
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31 |
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32 import sys |
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33 |
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34 import pysvn |
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35 |
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36 from trunk.scripts import app_image |
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37 from trunk.scripts import settings |
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38 from trunk.scripts import svn_helper |
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39 |
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40 |
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41 def buildOptionList(defaults={}): |
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42 """Returns a list of command-line settings.Options for this script. |
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43 |
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44 Args: |
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45 defaults: dict of possible pre-loaded default values; default is empty |
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46 dict (which is safe because it is not altered) |
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47 """ |
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48 help_user = defaults.get('user', '<user>') |
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49 user_help_msg = ( |
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50 'user name, used for default /users/%s/ branch' % help_user) |
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51 dest_help_msg = ( |
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52 'if supplied, new name of branched app, users/%s/<dest>' % help_user) |
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53 branch_help_msg = ( |
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54 'destination branch, defaults to <wc>/users/%s/<src|dest>' % help_user) |
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55 |
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56 def_repo = defaults.get('repo') |
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57 |
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58 if def_repo: |
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59 repo_help_msg = 'SVN repository; default is %s' % def_repo |
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60 else: |
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61 repo_help_msg = 'SVN repository; REQUIRED if a default is missing' |
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62 |
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63 def_wc = defaults.get('wc') |
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64 |
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65 if def_wc: |
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66 wc_help_msg = 'working copy directory; default is %s' % def_wc |
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67 else: |
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68 wc_help_msg = 'working copy directory; REQUIRED if a default is missing' |
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69 |
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70 return [ |
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71 settings.Option( |
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72 '-R', '--repo', action='store', dest='repo', |
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73 default=def_repo, help=repo_help_msg), |
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74 settings.Option( |
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75 '-w', '--wc', action='store', dest='wc', |
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76 default=def_wc, help=wc_help_msg), |
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77 settings.Option( |
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78 '-s', '--src', action='store', dest='src', required=True, |
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79 help='(REQUIRED) name of source app in /trunk/apps/ to branch'), |
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80 settings.Option( |
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81 '-d', '--dest', action='store', dest='dest', help=dest_help_msg), |
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82 settings.Option( |
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83 '-u', '--user', action='store', dest='user', |
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84 default=defaults.get('user'), help=user_help_msg), |
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85 settings.Option( |
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86 '-b', '--branch', action='store', dest='branch', |
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87 help=branch_help_msg), |
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88 settings.Option( |
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89 '-r', '--rev', type='int', action='store', dest='rev', |
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90 default=None, help='optional revision number on which to branch'), |
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91 ] |
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92 |
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93 |
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94 def main(args): |
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95 # create parser just for usage info before settings file is read successfully |
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96 usage_parser = settings.OptionParser(option_list=buildOptionList()) |
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97 |
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98 # attempt to read the common trunk/scripts settings file |
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99 defaults = settings.readPythonSettingsOrDie(parser=usage_parser) |
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100 |
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101 # create the command-line options parser |
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102 parser = settings.makeOptionParserOrDie( |
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103 option_list=buildOptionList(defaults)) |
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104 |
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105 # parse the command-line options |
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106 options, args = settings.parseOptionsOrDie(parser, args) |
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107 |
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108 # ensure that various paths end with the / separator |
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109 src, dest, user, repo, wc = svn_helper.formatDirPaths( |
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110 options.src, options.dest, options.user, options.repo, options.wc) |
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111 |
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112 settings.checkCommonSvnOptionsOrDie(options, parser) |
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113 |
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114 branch = app_image.formDefaultAppBranchPath(options.branch, user, src, dest) |
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115 branch_path = svn_helper.getExpandedWorkingCopyPath(branch, wc_root=wc) |
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116 |
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117 # setup a callback used by pysvn if it needs a log message (it actually |
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118 # should not be needed, since nothing is being committed, but exceptions |
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119 # were being raised by pysvn without it) |
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120 def callbackGetLogMessage(): |
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121 return True, 'trunk/apps/%s application branched to %s' % (src, branch) |
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122 |
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123 client = svn_helper.getPySvnClient() |
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124 client.callback_get_log_message = callbackGetLogMessage |
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125 |
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126 # validate choice of "image" branch location |
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127 if not options.branch: |
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128 users = svn_helper.lsDirs(repo + 'users/') |
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129 |
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130 if user not in users: |
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131 return settings.printErrorsAndUsage( |
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132 ['%susers/%s not found; existing users are:' % (repo, user), |
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133 ' '.join(users)], parser) |
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134 |
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135 if svn_helper.exists(branch_path): |
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136 return settings.printErrorsAndUsage( |
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137 ['%s already exists;' % branch_path, |
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138 'use merge_branch.py to update instead'], |
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139 parser) |
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140 |
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141 # branch trunk/apps/<src> first, so parent destination directory will exist |
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142 app_image.branchFromSrcApp(src, repo, branch_path, rev=options.rev) |
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143 app_image.branchFromThirdParty(repo, branch_path, rev=options.rev) |
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144 app_image.branchFromFramework(repo, branch_path, rev=options.rev) |
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145 |
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146 return 0 |
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147 |
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148 |
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149 if __name__ == '__main__': |
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150 sys.exit(main(sys.argv)) |
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