annotate i18n/hggettext @ 36705:c6901665cd5b

py3: make sure __repr__ returns a str # skip-blame because just r'' prefix Differential Revision: https://phab.mercurial-scm.org/D2652
author Pulkit Goyal <7895pulkit@gmail.com>
date Sun, 04 Mar 2018 22:40:33 +0530
parents d5ef17608159
children 0585337ea787
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/env python
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2 #
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3 # hggettext - carefully extract docstrings for Mercurial
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4 #
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5 # Copyright 2009 Matt Mackall <mpm@selenic.com> and others
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6 #
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7 # This software may be used and distributed according to the terms of the
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8 # GNU General Public License version 2 or any later version.
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9
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10 # The normalize function is taken from pygettext which is distributed
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11 # with Python under the Python License, which is GPL compatible.
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12
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13 """Extract docstrings from Mercurial commands.
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14
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15 Compared to pygettext, this script knows about the cmdtable and table
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16 dictionaries used by Mercurial, and will only extract docstrings from
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17 functions mentioned therein.
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18
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19 Use xgettext like normal to extract strings marked as translatable and
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20 join the message cataloges to get the final catalog.
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21 """
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22
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23 from __future__ import absolute_import, print_function
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24
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25 import inspect
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26 import os
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27 import re
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28 import sys
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29
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30
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31 def escape(s):
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32 # The order is important, the backslash must be escaped first
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33 # since the other replacements introduce new backslashes
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34 # themselves.
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35 s = s.replace('\\', '\\\\')
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36 s = s.replace('\n', '\\n')
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37 s = s.replace('\r', '\\r')
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38 s = s.replace('\t', '\\t')
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39 s = s.replace('"', '\\"')
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40 return s
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41
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42
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43 def normalize(s):
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44 # This converts the various Python string types into a format that
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45 # is appropriate for .po files, namely much closer to C style.
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46 lines = s.split('\n')
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47 if len(lines) == 1:
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48 s = '"' + escape(s) + '"'
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49 else:
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50 if not lines[-1]:
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51 del lines[-1]
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52 lines[-1] = lines[-1] + '\n'
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53 lines = map(escape, lines)
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54 lineterm = '\\n"\n"'
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55 s = '""\n"' + lineterm.join(lines) + '"'
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56 return s
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57
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58
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59 def poentry(path, lineno, s):
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60 return ('#: %s:%d\n' % (path, lineno) +
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61 'msgid %s\n' % normalize(s) +
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62 'msgstr ""\n')
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63
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64 doctestre = re.compile(r'^ +>>> ', re.MULTILINE)
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65
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66 def offset(src, doc, name, default):
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67 """Compute offset or issue a warning on stdout."""
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68 # remove doctest part, in order to avoid backslash mismatching
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69 m = doctestre.search(doc)
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70 if m:
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71 doc = doc[:m.start()]
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72
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73 # Backslashes in doc appear doubled in src.
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74 end = src.find(doc.replace('\\', '\\\\'))
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75 if end == -1:
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76 # This can happen if the docstring contains unnecessary escape
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77 # sequences such as \" in a triple-quoted string. The problem
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78 # is that \" is turned into " and so doc wont appear in src.
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79 sys.stderr.write("warning: unknown offset in %s, assuming %d lines\n"
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80 % (name, default))
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81 return default
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82 else:
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83 return src.count('\n', 0, end)
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84
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85
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86 def importpath(path):
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87 """Import a path like foo/bar/baz.py and return the baz module."""
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88 if path.endswith('.py'):
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89 path = path[:-3]
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90 if path.endswith('/__init__'):
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91 path = path[:-9]
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92 path = path.replace('/', '.')
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93 mod = __import__(path)
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94 for comp in path.split('.')[1:]:
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95 mod = getattr(mod, comp)
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96 return mod
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97
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98
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99 def docstrings(path):
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100 """Extract docstrings from path.
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101
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102 This respects the Mercurial cmdtable/table convention and will
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103 only extract docstrings from functions mentioned in these tables.
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104 """
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105 mod = importpath(path)
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106 if not path.startswith('mercurial/') and mod.__doc__:
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107 src = open(path).read()
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108 lineno = 1 + offset(src, mod.__doc__, path, 7)
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109 print(poentry(path, lineno, mod.__doc__))
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110
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111 functions = list(getattr(mod, 'i18nfunctions', []))
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112 functions = [(f, True) for f in functions]
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113
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114 cmdtable = getattr(mod, 'cmdtable', {})
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115 if not cmdtable:
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116 # Maybe we are processing mercurial.commands?
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117 cmdtable = getattr(mod, 'table', {})
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118 functions.extend((c[0], False) for c in cmdtable.itervalues())
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119
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120 for func, rstrip in functions:
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121 if func.__doc__:
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122 docobj = func # this might be a proxy to provide formatted doc
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123 func = getattr(func, '_origfunc', func)
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124 funcmod = inspect.getmodule(func)
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125 extra = ''
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126 if funcmod.__package__ == funcmod.__name__:
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127 extra = '/__init__'
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128 actualpath = '%s%s.py' % (funcmod.__name__.replace('.', '/'), extra)
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129
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130 src = inspect.getsource(func)
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131 name = "%s.%s" % (actualpath, func.__name__)
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132 lineno = inspect.getsourcelines(func)[1]
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133 doc = docobj.__doc__
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134 origdoc = getattr(docobj, '_origdoc', '')
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135 if rstrip:
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136 doc = doc.rstrip()
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137 origdoc = origdoc.rstrip()
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
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138 if origdoc:
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139 lineno += offset(src, origdoc, name, 1)
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140 else:
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141 lineno += offset(src, doc, name, 1)
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16a175b3681e i18n: use actual filename, in which function is defined, for hg.pot
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
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142 print(poentry(actualpath, lineno, doc))
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Martin Geisler <mg@lazybytes.net>
parents:
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143
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parents:
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144
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145 def rawtext(path):
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146 src = open(path).read()
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Pulkit Goyal <7895pulkit@gmail.com>
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147 print(poentry(path, 1, src))
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parents: 8626
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148
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parents: 8626
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149
8542
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parents:
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150 if __name__ == "__main__":
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parents: 8542
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151 # It is very important that we import the Mercurial modules from
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152 # the source tree where hggettext is executed. Otherwise we might
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153 # accidentally import and extract strings from a Mercurial
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parents: 8542
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154 # installation mentioned in PYTHONPATH.
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155 sys.path.insert(0, os.getcwd())
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parents: 8542
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156 from mercurial import demandimport; demandimport.enable()
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Martin Geisler <mg@lazybytes.net>
parents:
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157 for path in sys.argv[1:]:
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parents: 8626
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158 if path.endswith('.txt'):
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parents: 8626
diff changeset
159 rawtext(path)
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Martin Geisler <mg@lazybytes.net>
parents: 8626
diff changeset
160 else:
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parents: 8626
diff changeset
161 docstrings(path)