annotate mercurial/fancyopts.py @ 32658:55ff67ffcead

scmutil: introduce binnode(ctx) as paired function with intrev(ctx) It seemed silly to convert ctx.hex() back to binary to use node.hex/short(), or to use [:12] instead of node.short() because ctx.node() could be None. Eventually I want to change wctx.rev() and wctx.node() to return wdirrev and wdirid respectively, but that's quite big API breakage and can't be achieved without some compatibility wrappers.
author Yuya Nishihara <yuya@tcha.org>
date Sat, 03 Jun 2017 19:12:01 +0900
parents bd872f64a8ba
children db8531c45953
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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 from .i18n import _
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11 from . import (
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12 error,
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13 pycompat,
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14 )
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15
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16 # Set of flags to not apply boolean negation logic on
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17 nevernegate = {
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18 # avoid --no-noninteractive
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19 'noninteractive',
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20 # These two flags are special because they cause hg to do one
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21 # thing and then exit, and so aren't suitable for use in things
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22 # like aliases anyway.
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23 'help',
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24 'version',
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25 }
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26
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27 def gnugetopt(args, options, longoptions):
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28 """Parse options mostly like getopt.gnu_getopt.
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29
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30 This is different from getopt.gnu_getopt in that an argument of - will
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31 become an argument of - instead of vanishing completely.
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32 """
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33 extraargs = []
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34 if '--' in args:
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35 stopindex = args.index('--')
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36 extraargs = args[stopindex + 1:]
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37 args = args[:stopindex]
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38 opts, parseargs = pycompat.getoptb(args, options, longoptions)
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39 args = []
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40 while parseargs:
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41 arg = parseargs.pop(0)
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42 if arg and arg[0] == '-' and len(arg) > 1:
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43 parseargs.insert(0, arg)
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44 topts, newparseargs = pycompat.getoptb(parseargs,\
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45 options, longoptions)
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46 opts = opts + topts
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47 parseargs = newparseargs
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48 else:
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49 args.append(arg)
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50 args.extend(extraargs)
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51 return opts, args
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52
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53
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54 def fancyopts(args, options, state, gnu=False):
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55 """
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56 read args, parse options, and store options in state
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57
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58 each option is a tuple of:
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59
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60 short option or ''
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61 long option
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62 default value
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63 description
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64 option value label(optional)
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65
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66 option types include:
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67
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68 boolean or none - option sets variable in state to true
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69 string - parameter string is stored in state
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70 list - parameter string is added to a list
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71 integer - parameter strings is stored as int
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72 function - call function with parameter
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73
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74 non-option args are returned
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75 """
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76 namelist = []
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77 shortlist = ''
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78 argmap = {}
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79 defmap = {}
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80 negations = {}
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81 alllong = set(o[1] for o in options)
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82
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83 for option in options:
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84 if len(option) == 5:
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85 short, name, default, comment, dummy = option
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86 else:
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87 short, name, default, comment = option
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88 # convert opts to getopt format
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89 oname = name
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90 name = name.replace('-', '_')
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91
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92 argmap['-' + short] = argmap['--' + oname] = name
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93 defmap[name] = default
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94
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95 # copy defaults to state
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96 if isinstance(default, list):
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97 state[name] = default[:]
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98 elif callable(default):
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99 state[name] = None
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100 else:
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101 state[name] = default
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102
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103 # does it take a parameter?
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104 if not (default is None or default is True or default is False):
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105 if short:
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106 short += ':'
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107 if oname:
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108 oname += '='
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109 elif oname not in nevernegate:
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110 if oname.startswith('no-'):
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111 insert = oname[3:]
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112 else:
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113 insert = 'no-' + oname
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114 # backout (as a practical example) has both --commit and
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115 # --no-commit options, so we don't want to allow the
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116 # negations of those flags.
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117 if insert not in alllong:
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118 assert ('--' + oname) not in negations
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119 negations['--' + insert] = '--' + oname
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120 namelist.append(insert)
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121 if short:
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122 shortlist += short
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123 if name:
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124 namelist.append(oname)
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125
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126 # parse arguments
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127 if gnu:
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128 parse = gnugetopt
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129 else:
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130 parse = pycompat.getoptb
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131 opts, args = parse(args, shortlist, namelist)
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132
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133 # transfer result to state
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134 for opt, val in opts:
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135 boolval = True
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136 negation = negations.get(opt, False)
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137 if negation:
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138 opt = negation
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139 boolval = False
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140 name = argmap[opt]
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141 obj = defmap[name]
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142 t = type(obj)
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143 if callable(obj):
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144 state[name] = defmap[name](val)
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145 elif t is type(1):
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146 try:
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147 state[name] = int(val)
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148 except ValueError:
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Pierre-Yves David <pierre-yves.david@fb.com>
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149 raise error.Abort(_('invalid value %r for option %s, '
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150 'expected int') % (val, opt))
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151 elif t is type(''):
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152 state[name] = val
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153 elif t is type([]):
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154 state[name].append(val)
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155 elif t is type(None) or t is type(False):
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Augie Fackler <augie@google.com>
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156 state[name] = boolval
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mpm@selenic.com
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157
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158 # return unparsed args
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159 return args