annotate doc/setup.txt @ 554:70f2c13f5f43

keywords only support space separated values, not comma separated thanks agronholm
author pjenvey
date Mon, 25 Apr 2011 04:41:23 +0000
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1 .. -*- mode: rst; encoding: utf-8 -*-
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2
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3 ================================
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4 Distutils/Setuptools Integration
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5 ================================
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6
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7 Babel provides commands for integration into ``setup.py`` scripts, based on
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8 either the ``distutils`` package that is part of the Python standard library,
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9 or the third-party ``setuptools`` package.
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10
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11 These commands are available by default when Babel has been properly installed,
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12 and ``setup.py`` is using ``setuptools``. For projects that use plain old
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13 ``distutils``, the commands need to be registered explicitly, for example:
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14
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15 .. code-block:: python
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16
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17 from distutils.core import setup
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18 from babel.messages import frontend as babel
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20 setup(
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21 ...
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22 cmdclass = {'compile_catalog': babel.compile_catalog,
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23 'extract_messages': babel.extract_messages,
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24 'init_catalog': babel.init_catalog,
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25 'update_catalog': babel.update_catalog}
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26 )
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27
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28
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29 .. contents:: Contents
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30 :depth: 2
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31 .. sectnum::
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33
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34 compile_catalog
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35 ===============
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36
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37 The ``compile_catalog`` command is similar to the GNU ``msgfmt`` tool, in that
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38 it takes a message catalog from a PO file and compiles it to a binary MO file.
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39
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40 If the command has been correctly installed or registered, a project's
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41 ``setup.py`` script should allow you to use the command::
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42
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43 $ ./setup.py compile_catalog --help
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44 Global options:
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45 --verbose (-v) run verbosely (default)
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46 --quiet (-q) run quietly (turns verbosity off)
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47 --dry-run (-n) don't actually do anything
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48 --help (-h) show detailed help message
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49
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50 Options for 'compile_catalog' command:
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51 ...
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52
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53 Running the command will produce a binary MO file::
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54
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55 $ ./setup.py compile_catalog --directory foobar/locale --locale pt_BR
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56 running compile_catalog
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57 compiling catalog to foobar/locale/pt_BR/LC_MESSAGES/messages.mo
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59
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60 Options
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61 -------
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62
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63 The ``compile_catalog`` command accepts the following options:
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64
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65 +-----------------------------+---------------------------------------------+
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66 | Option | Description |
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67 +=============================+=============================================+
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68 | ``--domain`` | domain of the PO file (defaults to |
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69 | | lower-cased project name) |
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70 +-----------------------------+---------------------------------------------+
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71 | ``--directory`` (``-d``) | name of the base directory |
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72 +-----------------------------+---------------------------------------------+
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73 | ``--input-file`` (``-i``) | name of the input file |
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74 +-----------------------------+---------------------------------------------+
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75 | ``--output-file`` (``-o``) | name of the output file |
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76 +-----------------------------+---------------------------------------------+
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77 | ``--locale`` (``-l``) | locale for the new localized string |
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78 +-----------------------------+---------------------------------------------+
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79 | ``--use-fuzzy`` (``-f``) | also include "fuzzy" translations |
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80 +-----------------------------+---------------------------------------------+
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81 | ``--statistics`` | print statistics about translations |
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82 +-----------------------------+---------------------------------------------+
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83
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84 If ``directory`` is specified, but ``output-file`` is not, the default filename
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85 of the output file will be::
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86
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87 <directory>/<locale>/LC_MESSAGES/<domain>.mo
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89 If neither the ``input_file`` nor the ``locale`` option is set, this command
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90 looks for all catalog files in the base directory that match the given domain,
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91 and compiles each of them to MO files in the same directory.
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92
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93 These options can either be specified on the command-line, or in the
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94 ``setup.cfg`` file.
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95
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96
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97 extract_messages
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98 ================
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99
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100 The ``extract_messages`` command is comparable to the GNU ``xgettext`` program:
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101 it can extract localizable messages from a variety of difference source files,
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102 and generate a PO (portable object) template file from the collected messages.
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103
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104 If the command has been correctly installed or registered, a project's
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105 ``setup.py`` script should allow you to use the command::
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106
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107 $ ./setup.py extract_messages --help
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108 Global options:
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109 --verbose (-v) run verbosely (default)
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110 --quiet (-q) run quietly (turns verbosity off)
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111 --dry-run (-n) don't actually do anything
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112 --help (-h) show detailed help message
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113
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114 Options for 'extract_messages' command:
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115 ...
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116
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117 Running the command will produce a PO template file::
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118
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119 $ ./setup.py extract_messages --output-file foobar/locale/messages.pot
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120 running extract_messages
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121 extracting messages from foobar/__init__.py
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122 extracting messages from foobar/core.py
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123 ...
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124 writing PO template file to foobar/locale/messages.pot
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125
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126
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127 Method Mapping
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128 --------------
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129
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130 The mapping of file patterns to extraction methods (and options) can be
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131 specified using a configuration file that is pointed to using the
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132 ``--mapping-file`` option shown above. Alternatively, you can configure the
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133 mapping directly in ``setup.py`` using a keyword argument to the ``setup()``
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134 function:
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135
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136 .. code-block:: python
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137
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138 setup(...
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139
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140 message_extractors = {
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141 'foobar': [
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142 ('**.py', 'python', None),
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143 ('**/templates/**.html', 'genshi', None),
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144 ('**/templates/**.txt', 'genshi', {
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145 'template_class': 'genshi.template:TextTemplate'
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146 })
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147 ],
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148 },
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149
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150 ...
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151 )
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153
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154 Options
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155 -------
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156
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157 The ``extract_messages`` command accepts the following options:
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158
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159 +-----------------------------+----------------------------------------------+
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160 | Option | Description |
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161 +=============================+==============================================+
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162 | ``--charset`` | charset to use in the output file |
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163 +-----------------------------+----------------------------------------------+
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164 | ``--keywords`` (``-k``) | space-separated list of keywords to look for |
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165 | | in addition to the defaults |
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166 +-----------------------------+----------------------------------------------+
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167 | ``--no-default-keywords`` | do not include the default keywords |
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168 +-----------------------------+----------------------------------------------+
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169 | ``--mapping-file`` (``-F``) | path to the mapping configuration file |
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170 +-----------------------------+----------------------------------------------+
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171 | ``--no-location`` | do not include location comments with |
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172 | | filename and line number |
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173 +-----------------------------+----------------------------------------------+
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174 | ``--omit-header`` | do not include msgid "" entry in header |
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175 +-----------------------------+----------------------------------------------+
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176 | ``--output-file`` (``-o``) | name of the output file |
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177 +-----------------------------+----------------------------------------------+
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178 | ``--width`` (``-w``) | set output line width (default 76) |
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179 +-----------------------------+----------------------------------------------+
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180 | ``--no-wrap`` | do not break long message lines, longer than |
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181 | | the output line width, into several lines |
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182 +-----------------------------+----------------------------------------------+
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183 | ``--input-dirs`` | directories that should be scanned for |
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184 | | messages |
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185 +-----------------------------+----------------------------------------------+
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186 | ``--sort-output`` | generate sorted output (default False) |
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187 +-----------------------------+----------------------------------------------+
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188 | ``--sort-by-file`` | sort output by file location (default False) |
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189 +-----------------------------+----------------------------------------------+
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190 | ``--msgid-bugs-address`` | set email address for message bug reports |
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191 +-----------------------------+----------------------------------------------+
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192 | ``--copyright-holder`` | set copyright holder in output |
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193 +-----------------------------+----------------------------------------------+
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194 | ``--add-comments (-c)`` | place comment block with TAG (or those |
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195 | | preceding keyword lines) in output file. |
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196 | | Separate multiple TAGs with commas(,) |
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197 +-----------------------------+----------------------------------------------+
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198
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199 These options can either be specified on the command-line, or in the
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200 ``setup.cfg`` file. In the latter case, the options above become entries of the
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201 section ``[extract_messages]``, and the option names are changed to use
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202 underscore characters instead of dashes, for example:
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203
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204 .. code-block:: ini
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205
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206 [extract_messages]
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207 keywords = _ gettext ngettext
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208 mapping_file = babel.cfg
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209 width = 80
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210
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211 This would be equivalent to invoking the command from the command-line as
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212 follows::
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213
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214 $ setup.py extract_messages -k _ -k gettext -k ngettext -F mapping.cfg -w 80
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215
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216 Any path names are interpreted relative to the location of the ``setup.py``
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217 file. For boolean options, use "true" or "false" values.
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218
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219
181
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220 init_catalog
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221 ============
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222
181
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223 The ``init_catalog`` command is basically equivalent to the GNU ``msginit``
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224 program: it creates a new translation catalog based on a PO template file (POT).
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225
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226 If the command has been correctly installed or registered, a project's
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227 ``setup.py`` script should allow you to use the command::
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228
181
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229 $ ./setup.py init_catalog --help
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230 Global options:
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231 --verbose (-v) run verbosely (default)
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232 --quiet (-q) run quietly (turns verbosity off)
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233 --dry-run (-n) don't actually do anything
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234 --help (-h) show detailed help message
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235
181
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236 Options for 'init_catalog' command:
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237 ...
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238
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239 Running the command will produce a PO file::
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240
181
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241 $ ./setup.py init_catalog -l fr -i foobar/locales/messages.pot \
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242 -o foobar/locales/fr/messages.po
181
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243 running init_catalog
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244 creating catalog 'foobar/locales/fr/messages.po' based on 'foobar/locales/messages.pot'
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245
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246
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247 Options
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248 -------
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249
181
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250 The ``init_catalog`` command accepts the following options:
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251
319
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252 +-----------------------------+---------------------------------------------+
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253 | Option | Description |
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254 +=============================+=============================================+
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255 | ``--domain`` | domain of the PO file (defaults to |
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256 | | lower-cased project name) |
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257 +-----------------------------+---------------------------------------------+
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258 | ``--input-file`` (``-i``) | name of the input file |
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259 +-----------------------------+---------------------------------------------+
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260 | ``--output-dir`` (``-d``) | name of the output directory |
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261 +-----------------------------+---------------------------------------------+
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262 | ``--output-file`` (``-o``) | name of the output file |
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263 +-----------------------------+---------------------------------------------+
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264 | ``--locale`` | locale for the new localized string |
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265 +-----------------------------+---------------------------------------------+
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266
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267 If ``output-dir`` is specified, but ``output-file`` is not, the default filename
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268 of the output file will be::
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269
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270 <output_dir>/<locale>/LC_MESSAGES/<domain>.po
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271
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272 These options can either be specified on the command-line, or in the
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273 ``setup.cfg`` file.
181
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274
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275
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276 update_catalog
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277 ==============
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278
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279 The ``update_catalog`` command is basically equivalent to the GNU ``msgmerge``
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280 program: it updates an existing translations catalog based on a PO template
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281 file (POT).
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282
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283 If the command has been correctly installed or registered, a project's
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284 ``setup.py`` script should allow you to use the command::
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285
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286 $ ./setup.py update_catalog --help
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287 Global options:
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288 --verbose (-v) run verbosely (default)
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289 --quiet (-q) run quietly (turns verbosity off)
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290 --dry-run (-n) don't actually do anything
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291 --help (-h) show detailed help message
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292
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293 Options for 'update_catalog' command:
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294 ...
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295
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296 Running the command will update a PO file::
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297
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298 $ ./setup.py update_catalog -l fr -i foobar/locales/messages.pot \
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299 -o foobar/locales/fr/messages.po
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300 running update_catalog
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301 updating catalog 'foobar/locales/fr/messages.po' based on 'foobar/locales/messages.pot'
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302
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303
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304 Options
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305 -------
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306
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307 The ``update_catalog`` command accepts the following options:
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308
319
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309 +-------------------------------------+-------------------------------------+
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310 | Option | Description |
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311 +=====================================+=====================================+
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312 | ``--domain`` | domain of the PO file (defaults to |
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313 | | lower-cased project name) |
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314 +-------------------------------------+-------------------------------------+
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315 | ``--input-file`` (``-i``) | name of the input file |
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316 +-------------------------------------+-------------------------------------+
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317 | ``--output-dir`` (``-d``) | name of the output directory |
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318 +-------------------------------------+-------------------------------------+
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319 | ``--output-file`` (``-o``) | name of the output file |
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320 +-------------------------------------+-------------------------------------+
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321 | ``--locale`` | locale for the new localized string |
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322 +-------------------------------------+-------------------------------------+
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323 | ``--ignore-obsolete`` | do not include obsolete messages in |
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324 | | the output |
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325 +-------------------------------------+-------------------------------------+
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326 | ``--no-fuzzy-matching`` (``-N``) | do not use fuzzy matching |
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327 +-------------------------------------+-------------------------------------+
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328 | ``--previous`` | keep previous msgids of translated |
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329 | | messages |
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330 +-------------------------------------+-------------------------------------+
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331
9a1acb41e7dd The frontends now provide ways to update existing translations catalogs from a template. Closes #22.
cmlenz
parents: 177
diff changeset
332 If ``output-dir`` is specified, but ``output-file`` is not, the default filename
9a1acb41e7dd The frontends now provide ways to update existing translations catalogs from a template. Closes #22.
cmlenz
parents: 177
diff changeset
333 of the output file will be::
9a1acb41e7dd The frontends now provide ways to update existing translations catalogs from a template. Closes #22.
cmlenz
parents: 177
diff changeset
334
9a1acb41e7dd The frontends now provide ways to update existing translations catalogs from a template. Closes #22.
cmlenz
parents: 177
diff changeset
335 <output_dir>/<locale>/LC_MESSAGES/<domain>.po
9a1acb41e7dd The frontends now provide ways to update existing translations catalogs from a template. Closes #22.
cmlenz
parents: 177
diff changeset
336
9a1acb41e7dd The frontends now provide ways to update existing translations catalogs from a template. Closes #22.
cmlenz
parents: 177
diff changeset
337 If neither the ``input_file`` nor the ``locale`` option is set, this command
9a1acb41e7dd The frontends now provide ways to update existing translations catalogs from a template. Closes #22.
cmlenz
parents: 177
diff changeset
338 looks for all catalog files in the base directory that match the given domain,
9a1acb41e7dd The frontends now provide ways to update existing translations catalogs from a template. Closes #22.
cmlenz
parents: 177
diff changeset
339 and updates each of them.
9a1acb41e7dd The frontends now provide ways to update existing translations catalogs from a template. Closes #22.
cmlenz
parents: 177
diff changeset
340
9a1acb41e7dd The frontends now provide ways to update existing translations catalogs from a template. Closes #22.
cmlenz
parents: 177
diff changeset
341 These options can either be specified on the command-line, or in the
9a1acb41e7dd The frontends now provide ways to update existing translations catalogs from a template. Closes #22.
cmlenz
parents: 177
diff changeset
342 ``setup.cfg`` file.
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