Mercurial > hg
annotate i18n/hggettext @ 39679:ebbba3ba3f66
transaction: make validator a private attribute
This is similar to releasefn. It holds state that doesn't need to be
exposed as part of the public interface.
Differential Revision: https://phab.mercurial-scm.org/D4627
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Mon, 17 Sep 2018 16:01:22 -0700 |
parents | 617ae7e33a65 |
children | 47ef023d0165 |
rev | line source |
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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 |
10263 | 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, lineno, 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("%s:%d:warning:" |
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80 " unknown docstr offset, assuming %d lines\n" |
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81 % (name, lineno, default)) |
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82 return default |
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83 else: |
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84 return src.count('\n', 0, end) |
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85 |
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86 |
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87 def importpath(path): |
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88 """Import a path like foo/bar/baz.py and return the baz module.""" |
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89 if path.endswith('.py'): |
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90 path = path[:-3] |
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91 if path.endswith('/__init__'): |
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92 path = path[:-9] |
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93 path = path.replace('/', '.') |
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94 mod = __import__(path) |
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95 for comp in path.split('.')[1:]: |
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96 mod = getattr(mod, comp) |
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97 return mod |
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98 |
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99 |
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100 def docstrings(path): |
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101 """Extract docstrings from path. |
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102 |
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103 This respects the Mercurial cmdtable/table convention and will |
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104 only extract docstrings from functions mentioned in these tables. |
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105 """ |
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106 mod = importpath(path) |
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107 if not path.startswith('mercurial/') and mod.__doc__: |
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108 with open(path) as fobj: |
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109 src = fobj.read() |
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110 lineno = 1 + offset(src, mod.__doc__, path, 1, 7) |
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111 print(poentry(path, lineno, mod.__doc__)) |
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112 |
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113 functions = list(getattr(mod, 'i18nfunctions', [])) |
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114 functions = [(f, True) for f in functions] |
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115 |
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116 cmdtable = getattr(mod, 'cmdtable', {}) |
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117 if not cmdtable: |
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118 # Maybe we are processing mercurial.commands? |
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119 cmdtable = getattr(mod, 'table', {}) |
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120 functions.extend((c[0], False) for c in cmdtable.itervalues()) |
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121 |
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122 for func, rstrip in functions: |
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123 if func.__doc__: |
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124 docobj = func # this might be a proxy to provide formatted doc |
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125 func = getattr(func, '_origfunc', func) |
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126 funcmod = inspect.getmodule(func) |
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127 extra = '' |
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128 if funcmod.__package__ == funcmod.__name__: |
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129 extra = '/__init__' |
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130 actualpath = '%s%s.py' % (funcmod.__name__.replace('.', '/'), extra) |
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131 |
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132 src = inspect.getsource(func) |
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133 lineno = inspect.getsourcelines(func)[1] |
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134 doc = docobj.__doc__ |
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135 origdoc = getattr(docobj, '_origdoc', '') |
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136 if rstrip: |
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137 doc = doc.rstrip() |
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138 origdoc = origdoc.rstrip() |
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139 if origdoc: |
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140 lineno += offset(src, origdoc, actualpath, lineno, 1) |
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141 else: |
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142 lineno += offset(src, doc, actualpath, lineno, 1) |
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143 print(poentry(actualpath, lineno, doc)) |
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144 |
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145 |
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146 def rawtext(path): |
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147 with open(path) as f: |
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148 src = f.read() |
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149 print(poentry(path, 1, src)) |
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150 |
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151 |
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152 if __name__ == "__main__": |
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153 # It is very important that we import the Mercurial modules from |
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154 # the source tree where hggettext is executed. Otherwise we might |
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155 # accidentally import and extract strings from a Mercurial |
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156 # installation mentioned in PYTHONPATH. |
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157 sys.path.insert(0, os.getcwd()) |
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158 from mercurial import demandimport; demandimport.enable() |
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159 for path in sys.argv[1:]: |
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160 if path.endswith('.txt'): |
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161 rawtext(path) |
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162 else: |
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163 docstrings(path) |