Mercurial > hg
annotate mercurial/fancyopts.py @ 30186:f7ed5af31242
mergecopies: rename 'ca' to 'base'
This variable was named after the common ancestor. It is actually the merge
base that might differ from the common ancestor in the graft case. We rename the
variable before a larger refactoring to clarify the situation. Similar rename
was also applied to 'checkcopies' in a prior changeset.
author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
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date | Thu, 13 Oct 2016 01:30:14 +0200 |
parents | e1f0ec0b7d2d |
children | c6ce11f2ee50 |
rev | line source |
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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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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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156 # return unparsed args |
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157 return args |