annotate mercurial/fancyopts.py @ 30068:a76d5ba7ac43

pull: grab wlock during pull because pull might move bookmarks and bookmark are protected by wlock, we have to grab wlock for pull :-( This required a small upgrade of the 'lockdelay' extension used by 'test-clone.t' because the delay must apply to a single lock only.
author Pierre-Yves David <pierre-yves.david@ens-lyon.org>
date Tue, 23 Aug 2016 23:47:59 +0200
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children c6ce11f2ee50
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1 # fancyopts.py - better command line parsing
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2 #
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3 # Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 from __future__ import absolute_import
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9
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10 import getopt
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11
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12 from .i18n import _
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13 from . import error
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14
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15 # Set of flags to not apply boolean negation logic on
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16 nevernegate = set([
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17 # avoid --no-noninteractive
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18 'noninteractive',
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19 # These two flags are special because they cause hg to do one
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20 # thing and then exit, and so aren't suitable for use in things
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21 # like aliases anyway.
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22 'help',
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23 'version',
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24 ])
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25
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26 def gnugetopt(args, options, longoptions):
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27 """Parse options mostly like getopt.gnu_getopt.
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28
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29 This is different from getopt.gnu_getopt in that an argument of - will
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30 become an argument of - instead of vanishing completely.
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31 """
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32 extraargs = []
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33 if '--' in args:
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34 stopindex = args.index('--')
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35 extraargs = args[stopindex + 1:]
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36 args = args[:stopindex]
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37 opts, parseargs = getopt.getopt(args, options, longoptions)
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38 args = []
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39 while parseargs:
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40 arg = parseargs.pop(0)
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41 if arg and arg[0] == '-' and len(arg) > 1:
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42 parseargs.insert(0, arg)
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43 topts, newparseargs = getopt.getopt(parseargs, options, longoptions)
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44 opts = opts + topts
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45 parseargs = newparseargs
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46 else:
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47 args.append(arg)
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48 args.extend(extraargs)
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49 return opts, args
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50
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51
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52 def fancyopts(args, options, state, gnu=False):
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53 """
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54 read args, parse options, and store options in state
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55
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56 each option is a tuple of:
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57
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58 short option or ''
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59 long option
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60 default value
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61 description
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62 option value label(optional)
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63
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64 option types include:
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65
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66 boolean or none - option sets variable in state to true
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67 string - parameter string is stored in state
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68 list - parameter string is added to a list
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69 integer - parameter strings is stored as int
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70 function - call function with parameter
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71
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72 non-option args are returned
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73 """
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74 namelist = []
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75 shortlist = ''
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76 argmap = {}
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77 defmap = {}
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78 negations = {}
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79 alllong = set(o[1] for o in options)
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80
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81 for option in options:
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82 if len(option) == 5:
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83 short, name, default, comment, dummy = option
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84 else:
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85 short, name, default, comment = option
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86 # convert opts to getopt format
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87 oname = name
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88 name = name.replace('-', '_')
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89
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90 argmap['-' + short] = argmap['--' + oname] = name
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91 defmap[name] = default
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92
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93 # copy defaults to state
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94 if isinstance(default, list):
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95 state[name] = default[:]
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96 elif callable(default):
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97 state[name] = None
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98 else:
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99 state[name] = default
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100
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101 # does it take a parameter?
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102 if not (default is None or default is True or default is False):
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103 if short:
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104 short += ':'
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105 if oname:
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106 oname += '='
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107 elif oname not in nevernegate:
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108 if oname.startswith('no-'):
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109 insert = oname[3:]
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110 else:
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111 insert = 'no-' + oname
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112 # backout (as a practical example) has both --commit and
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113 # --no-commit options, so we don't want to allow the
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114 # negations of those flags.
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115 if insert not in alllong:
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116 assert ('--' + oname) not in negations
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117 negations['--' + insert] = '--' + oname
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118 namelist.append(insert)
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119 if short:
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120 shortlist += short
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121 if name:
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122 namelist.append(oname)
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123
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124 # parse arguments
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125 if gnu:
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126 parse = gnugetopt
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127 else:
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128 parse = getopt.getopt
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129 opts, args = parse(args, shortlist, namelist)
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130
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131 # transfer result to state
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132 for opt, val in opts:
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133 boolval = True
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134 negation = negations.get(opt, False)
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135 if negation:
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136 opt = negation
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137 boolval = False
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138 name = argmap[opt]
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139 obj = defmap[name]
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140 t = type(obj)
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141 if callable(obj):
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142 state[name] = defmap[name](val)
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143 elif t is type(1):
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144 try:
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145 state[name] = int(val)
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146 except ValueError:
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147 raise error.Abort(_('invalid value %r for option %s, '
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148 'expected int') % (val, opt))
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149 elif t is type(''):
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150 state[name] = val
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151 elif t is type([]):
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152 state[name].append(val)
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153 elif t is type(None) or t is type(False):
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154 state[name] = boolval
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155
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156 # return unparsed args
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157 return args