annotate python/hgrc.py @ 474:3326aea03a3b

python/hgrc.py
author Jeff Hammel <jhammel@mozilla.com>
date Sat, 10 Aug 2013 19:12:10 -0700
parents da087c5724d4
children efd50220556e
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1 #!/usr/bin/env python
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2
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3 """
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4 Script for modifying hgrc files.
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5
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6 If no arguments specified, the repository given by `hg root` is used.
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7 """
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8
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9 # imports
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10 import optparse
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11 import os
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12 import subprocess
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13 import sys
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14 from ConfigParser import RawConfigParser as ConfigParser
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15
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16 #@parser # decorator makes this x-form path -> ConfigParser automagically
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17 def set_default_push(parser, default_push):
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18 """
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19 set [paths]:default_push to `default_push`
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20 """
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21 pass
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22
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23 def set_default_push_to_ssh(parser):
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24 """
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25 set `[path]:default_push` to that given by `[path]:default` but
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26 turn the protocol to 'ssh'
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27 """
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28
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29 # get default path
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30 default = ''
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31
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32 def main(args=sys.argv[1:]):
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33
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34 # parse command line arguments
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35 usage = '%prog [options] repository <repository> <...>'
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36 parser = optparse.OptionParser(usage=usage, description=__doc__)
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37 parser.add_option('-l', '--list', dest='list_hgrc',
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38 action='store_true', default=False,
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39 help="list full path to hgrc files")
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40 parser.add_option('--ssh', dest='default_push_ssh',
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41 action='store_true', default=False,
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42 help="use `default` entries for `default-push`")
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43 parser.add_option('--push', '--default-push', dest='default_push',
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44 help="set [paths] default-push location")
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45 options, args = parser.parse_args(args)
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46
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47 # sanitization
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48 if options.default_push and options.default_push_ssh:
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49 parser.error("Cannot set --push and --ssh")
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50
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51 # if not specified, use repo from `hg root`
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52 if not args:
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53 args = [subprocess.check_output(['hg', 'root']).strip()]
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54
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55 # if not specified, set a default action
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56 default_action = 'default_push_ssh'
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57 available_actions = ('default_push',
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58 'default_push_ssh',
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59 'list_hgrc',
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60 )
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61 actions = dict([(name, getattr(options, name))
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62 for name in available_actions
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63 if getattr(options, name)])
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64 if not actions:
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65 actions = {'default_push_ssh': True}
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66
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67 # find all hgrc files
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68 hgrc = []
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69 missing = []
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70 not_hg = []
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71 not_a_directory = []
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72 errors = {'Missing path': missing,
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73 'Not a mercurial directory': not_hg,
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74 'Not a directory': not_a_directory,
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75 }
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76 for path in args:
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77 if not os.path.exists(path):
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78 missing.append(path)
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79 path = os.path.abspath(os.path.normpath(path))
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80 if os.path.isdir(path):
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81 basename = os.path.basename(path)
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82 subhgdir = os.path.join(path, '.hg') # hypothetical .hg subdirectory
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83 if basename == '.hg':
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84 hgrcpath = os.path.join(path, 'hgrc')
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85 elif os.path.exists(subhgdir):
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86 if not os.path.isdir(subhgdir):
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87 not_a_directory.append(subhgdir)
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88 continue
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89 hgrcpath = os.path.join(subhgdir, 'hgrc')
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90 else:
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91 not_hg.append(path)
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92 continue
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93 hgrc.append(hgrcpath)
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94 else:
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95 assert os.path.isfile(path), "%s is not a file, exiting" % path
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96 hgrc.append(path)
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97
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98 # raise errors if encountered
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99 if filter(None, errors.values()):
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100 for key, value in errors.items():
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101 if value:
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102 print '%s: %s' % (key, ', '.join(value))
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103 parser.exit(1)
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104
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105 # construct ConfigParser objects and
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106 # ensure that all the files are parseable
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107 config = {}
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108 for path in hgrc:
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109 config[path] = ConfigParser()
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110 if isinstance(path, basestring):
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111 if os.path.exists(path):
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112 config[path].read(path)
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113
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114 # print the chosen hgrc paths
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115 if actions.pop('list_hgrc', None):
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116 print '\n'.join(hgrc)
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117
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118 # map of actions -> functions;
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119 # XXX this is pretty improv; to be improved
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120 action_map = {'default_push_ssh': set_default_push_to_ssh,
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121 'default_push': set_default_push
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122 }
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123
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124 # alter .hgrc files
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125 action_names = actions.keys()
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126 while actions:
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127
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128 # XXX crappy
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129 action_name = action_names.pop()
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130 parameter = actions.pop(action_name)
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131 method = action_map[action_name]
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132
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133 # apply to all files
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134 for path, ini in config.items():
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135 if parameter is not None:
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136 method(ini, parameter)
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137 else:
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138 method(ini)
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139
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140
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141 if __name__ == '__main__':
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142 main()