annotate i18n/hggettext @ 51460:cebd96dee99a

branchcache: move the filename to a class attribute This prepare the introduction of more variant of cache.
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Sun, 25 Feb 2024 20:40:37 +0100
parents 6000f5b25c9b
children f4733654f144
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/env python3
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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 Olivia Mackall <olivia@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
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24 import inspect
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25 import os
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26 import re
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27 import sys
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28
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29
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30 def escape(s):
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31 # The order is important, the backslash must be escaped first
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32 # since the other replacements introduce new backslashes
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33 # themselves.
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34 s = s.replace('\\', '\\\\')
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35 s = s.replace('\n', '\\n')
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36 s = s.replace('\r', '\\r')
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37 s = s.replace('\t', '\\t')
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38 s = s.replace('"', '\\"')
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39 return s
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40
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41
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42 def normalize(s):
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43 # This converts the various Python string types into a format that
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44 # is appropriate for .po files, namely much closer to C style.
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45 lines = s.split('\n')
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46 if len(lines) == 1:
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47 s = '"' + escape(s) + '"'
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48 else:
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49 if not lines[-1]:
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50 del lines[-1]
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51 lines[-1] = lines[-1] + '\n'
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52 lines = map(escape, lines)
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53 lineterm = '\\n"\n"'
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54 s = '""\n"' + lineterm.join(lines) + '"'
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55 return s
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56
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57
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58 def poentry(path, lineno, s):
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59 return (
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60 '#: %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
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65
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66 doctestre = re.compile(r'^ +>>> ', re.MULTILINE)
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67
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68
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69 def offset(src, doc, name, lineno, default):
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70 """Compute offset or issue a warning on stdout."""
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71 # remove doctest part, in order to avoid backslash mismatching
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72 m = doctestre.search(doc)
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73 if m:
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74 doc = doc[: m.start()]
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75
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76 # Backslashes in doc appear doubled in src.
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77 end = src.find(doc.replace('\\', '\\\\'))
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78 if end == -1:
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79 # This can happen if the docstring contains unnecessary escape
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80 # sequences such as \" in a triple-quoted string. The problem
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81 # is that \" is turned into " and so doc wont appear in src.
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82 sys.stderr.write(
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83 "%s:%d:warning:"
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84 " unknown docstr offset, assuming %d lines\n"
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85 % (name, lineno, default)
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86 )
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87 return default
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88 else:
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89 return src.count('\n', 0, end)
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90
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91
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92 def importpath(path):
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93 """Import a path like foo/bar/baz.py and return the baz module."""
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94 if path.endswith('.py'):
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95 path = path[:-3]
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96 if path.endswith('/__init__'):
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97 path = path[:-9]
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98 path = path.replace('/', '.')
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99 mod = __import__(path)
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100 for comp in path.split('.')[1:]:
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101 mod = getattr(mod, comp)
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102 return mod
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103
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104
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105 def docstrings(path):
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106 """Extract docstrings from path.
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107
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108 This respects the Mercurial cmdtable/table convention and will
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109 only extract docstrings from functions mentioned in these tables.
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110 """
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111 mod = importpath(path)
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112 if not path.startswith('mercurial/') and mod.__doc__:
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113 with open(path) as fobj:
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114 src = fobj.read()
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115 lineno = 1 + offset(src, mod.__doc__, path, 1, 7)
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116 print(poentry(path, lineno, mod.__doc__))
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117
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118 functions = list(getattr(mod, 'i18nfunctions', []))
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119 functions = [(f, True) for f in functions]
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120
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121 cmdtable = getattr(mod, 'cmdtable', {})
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122 if not cmdtable:
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123 # Maybe we are processing mercurial.commands?
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124 cmdtable = getattr(mod, 'table', {})
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125 functions.extend((c[0], False) for c in cmdtable.values())
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126
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127 for func, rstrip in functions:
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128 if func.__doc__:
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129 docobj = func # this might be a proxy to provide formatted doc
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130 func = getattr(func, '_origfunc', func)
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131 funcmod = inspect.getmodule(func)
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132 extra = ''
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133 if funcmod.__package__ == funcmod.__name__:
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134 extra = '/__init__'
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135 actualpath = '%s%s.py' % (funcmod.__name__.replace('.', '/'), extra)
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136
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137 src = inspect.getsource(func)
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138 lineno = inspect.getsourcelines(func)[1]
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139 doc = docobj.__doc__
ed04d7254a91 i18n: use saved object to get actual function information if available
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 33817
diff changeset
140 origdoc = getattr(docobj, '_origdoc', '')
12823
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Patrick Mezard <pmezard@gmail.com>
parents: 10263
diff changeset
141 if rstrip:
80deae3bc5ea hggettext: handle i18nfunctions declaration for docstrings translations
Patrick Mezard <pmezard@gmail.com>
parents: 10263
diff changeset
142 doc = doc.rstrip()
33815
97ee669f1f6d i18n: make hggettext use original docstring to compute offset
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 33621
diff changeset
143 origdoc = origdoc.rstrip()
97ee669f1f6d i18n: make hggettext use original docstring to compute offset
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 33621
diff changeset
144 if origdoc:
38815
617ae7e33a65 i18n: format warning of hggettext in standard compiler error style
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 36948
diff changeset
145 lineno += offset(src, origdoc, actualpath, lineno, 1)
33815
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 33621
diff changeset
146 else:
38815
617ae7e33a65 i18n: format warning of hggettext in standard compiler error style
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 36948
diff changeset
147 lineno += offset(src, doc, actualpath, lineno, 1)
33621
16a175b3681e i18n: use actual filename, in which function is defined, for hg.pot
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29720
diff changeset
148 print(poentry(actualpath, lineno, doc))
8542
de150a942ec8 i18n: accurately generate hg.pot
Martin Geisler <mg@lazybytes.net>
parents:
diff changeset
149
de150a942ec8 i18n: accurately generate hg.pot
Martin Geisler <mg@lazybytes.net>
parents:
diff changeset
150
9539
c904e76e3834 help: move help topics from mercurial/help.py to help/*.txt
Martin Geisler <mg@lazybytes.net>
parents: 8626
diff changeset
151 def rawtext(path):
36948
0585337ea787 cleanup: fix some latent open(path).read() et al calls we previously missed
Augie Fackler <augie@google.com>
parents: 33819
diff changeset
152 with open(path) as f:
0585337ea787 cleanup: fix some latent open(path).read() et al calls we previously missed
Augie Fackler <augie@google.com>
parents: 33819
diff changeset
153 src = f.read()
29171
de28dedd1ff1 py3: make i18n/hggettext use print_function
Pulkit Goyal <7895pulkit@gmail.com>
parents: 29170
diff changeset
154 print(poentry(path, 1, src))
9539
c904e76e3834 help: move help topics from mercurial/help.py to help/*.txt
Martin Geisler <mg@lazybytes.net>
parents: 8626
diff changeset
155
c904e76e3834 help: move help topics from mercurial/help.py to help/*.txt
Martin Geisler <mg@lazybytes.net>
parents: 8626
diff changeset
156
8542
de150a942ec8 i18n: accurately generate hg.pot
Martin Geisler <mg@lazybytes.net>
parents:
diff changeset
157 if __name__ == "__main__":
8626
1fc1c77d4863 hggettext: ensure correct Mercurial is imported
Martin Geisler <mg@lazybytes.net>
parents: 8542
diff changeset
158 # It is very important that we import the Mercurial modules from
1fc1c77d4863 hggettext: ensure correct Mercurial is imported
Martin Geisler <mg@lazybytes.net>
parents: 8542
diff changeset
159 # the source tree where hggettext is executed. Otherwise we might
1fc1c77d4863 hggettext: ensure correct Mercurial is imported
Martin Geisler <mg@lazybytes.net>
parents: 8542
diff changeset
160 # accidentally import and extract strings from a Mercurial
1fc1c77d4863 hggettext: ensure correct Mercurial is imported
Martin Geisler <mg@lazybytes.net>
parents: 8542
diff changeset
161 # installation mentioned in PYTHONPATH.
1fc1c77d4863 hggettext: ensure correct Mercurial is imported
Martin Geisler <mg@lazybytes.net>
parents: 8542
diff changeset
162 sys.path.insert(0, os.getcwd())
43691
47ef023d0165 black: blacken scripts
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38815
diff changeset
163 from mercurial import demandimport
47ef023d0165 black: blacken scripts
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38815
diff changeset
164
47ef023d0165 black: blacken scripts
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38815
diff changeset
165 demandimport.enable()
8542
de150a942ec8 i18n: accurately generate hg.pot
Martin Geisler <mg@lazybytes.net>
parents:
diff changeset
166 for path in sys.argv[1:]:
9539
c904e76e3834 help: move help topics from mercurial/help.py to help/*.txt
Martin Geisler <mg@lazybytes.net>
parents: 8626
diff changeset
167 if path.endswith('.txt'):
c904e76e3834 help: move help topics from mercurial/help.py to help/*.txt
Martin Geisler <mg@lazybytes.net>
parents: 8626
diff changeset
168 rawtext(path)
c904e76e3834 help: move help topics from mercurial/help.py to help/*.txt
Martin Geisler <mg@lazybytes.net>
parents: 8626
diff changeset
169 else:
c904e76e3834 help: move help topics from mercurial/help.py to help/*.txt
Martin Geisler <mg@lazybytes.net>
parents: 8626
diff changeset
170 docstrings(path)