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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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42
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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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4
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16
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17 from distutils.core import setup
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18 from babel.catalog import frontend as babel
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19
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20 setup(
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21 ...
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22 cmd_class = {'extract_messages': babel.extract_messages}
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23 )
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24
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25
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26 .. contents:: Contents
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27 :depth: 2
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28 .. sectnum::
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29
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30
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31 extract_messages
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32 ================
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33
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34 The ``extract_messages`` command is comparabe to the GNU ``xgettext`` program:
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35 it can extract localizable messages from a variety of difference source files,
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36 and generate a PO (portable object) template file from the collected messages.
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37
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38 If the command has been correctly installed or registered, another project's
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39 ``setup.py`` script should allow you to use the command::
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40
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41 $ ./setup.py extract_messages --help
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42 Global options:
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43 --verbose (-v) run verbosely (default)
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44 --quiet (-q) run quietly (turns verbosity off)
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45 --dry-run (-n) don't actually do anything
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46 --help (-h) show detailed help message
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47
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48 Options for 'extract_messages' command:
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49 --charset charset to use in the output
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50 --keywords (-k) comma-separated list of keywords to look for in addition
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51 to the defaults
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52 --no-location do not write filename/lineno location comments
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53 --output-file filename of the output PO file
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54
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55 Running the command will produce a PO file::
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56
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57 $ ./setup.py extract_messages --output-file webapp/locales/messages.pot
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58 running extract_messages
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59 extracting messages from 'webapp'
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60 extracting messages from 'webparts'
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61 writing PO file to webapp/locales/messages.pot
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62
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63
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64 Options
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65 -------
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66
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67 As shown in the ``--help`` output above, the ``extract_messages`` command
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68 accepts the following options:
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69
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70 ``--charset``
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71 The character set / encoding to use in the generated PO file.
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72 ``--keywords``
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73 A comma-separated list of keywords (function names) to look for in addition
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74 to the default keywords
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75 ``--no-location``
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76 If this flag is set, location comments will not be included in the generated
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77 PO file.
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78 ``--output-file`` or ``-o``
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79 The path to the PO file that should be generated
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80
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