path: root/src/engine/SCons/Tool/msginit.xml

<?xml version="1.0"?>
<!--
Copyright (c) 2001 - 2019 The SCons Foundation

This file is processed by the bin/SConsDoc.py module.
See its __doc__ string for a discussion of the format.
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<!DOCTYPE sconsdoc [
<!ENTITY % scons SYSTEM '../../../../doc/scons.mod'>
%scons;
<!ENTITY % builders-mod SYSTEM '../../../../doc/generated/builders.mod'>
%builders-mod;
<!ENTITY % functions-mod SYSTEM '../../../../doc/generated/functions.mod'>
%functions-mod;
<!ENTITY % tools-mod SYSTEM '../../../../doc/generated/tools.mod'>
%tools-mod;
<!ENTITY % variables-mod SYSTEM '../../../../doc/generated/variables.mod'>
%variables-mod;
]>

<sconsdoc xmlns="http://www.scons.org/dbxsd/v1.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://www.scons.org/dbxsd/v1.0 http://www.scons.org/dbxsd/v1.0/scons.xsd">

<tool name="msginit">
<summary>
<para>
This scons tool is a part of scons &t-link-gettext; toolset. It provides
scons interface to <command>msginit(1)</command> program, which creates new
<literal>PO</literal> file, initializing the meta information with values from
user's environment (or options).
</para>
</summary>
<sets>
<item>MSGINIT</item>
<item>MSGINITCOM</item>
<item>MSGINITCOMSTR</item>
<item>MSGINITFLAGS</item>
<item>POAUTOINIT</item>
<item>POCREATE_ALIAS</item>
<item>POSUFFIX</item>
<item>POTSUFFIX</item>
<item>_MSGINITLOCALE</item>
</sets>
<uses>
<item>POTDOMAIN</item>
<item>LINGUAS_FILE</item>
<item>POAUTOINIT</item>
</uses>
</tool>

<builder name="POInit">
<summary>
<para>
This builder belongs to &t-link-msginit; tool. The builder initializes missing
<literal>PO</literal> file(s) if &cv-link-POAUTOINIT; is set.  If
&cv-link-POAUTOINIT; is not set (default), &b-POInit; prints instruction for
user (that is supposed to be a translator), telling how the
<literal>PO</literal> file should be initialized. In normal projects
<emphasis>you should not use &b-POInit; and use &b-link-POUpdate;
instead</emphasis>. &b-link-POUpdate; chooses intelligently between
<command>msgmerge(1)</command> and <command>msginit(1)</command>. &b-POInit;
always uses <command>msginit(1)</command> and should be regarded as builder for
special purposes or for temporary use (e.g. for quick, one time initialization
of a bunch of <literal>PO</literal> files) or for tests.
</para>

<para>
Target nodes defined through &b-POInit; are not built by default (they're
<literal>Ignore</literal>d from <literal>'.'</literal> node) but are added to
special <literal>Alias</literal> (<literal>'po-create'</literal> by default).
The alias name may be changed through the &cv-link-POCREATE_ALIAS;
construction variable. All <literal>PO</literal> files defined through
&b-POInit; may be easily initialized by <command>scons po-create</command>.
</para>

<para>
<emphasis>Example 1</emphasis>.
Initialize <filename>en.po</filename> and <filename>pl.po</filename> from
<filename>messages.pot</filename>:
</para>
<example_commands>
  # ...
  env.POInit(['en', 'pl']) # messages.pot --&gt; [en.po, pl.po] 
</example_commands>

<para>
<emphasis>Example 2</emphasis>.
Initialize <filename>en.po</filename> and <filename>pl.po</filename> from
<filename>foo.pot</filename>:
</para>
<example_commands>
  # ...
  env.POInit(['en', 'pl'], ['foo']) # foo.pot --&gt; [en.po, pl.po] 
</example_commands>

<para>
<emphasis>Example 3</emphasis>.
Initialize <filename>en.po</filename> and <filename>pl.po</filename> from
<filename>foo.pot</filename> but using &cv-link-POTDOMAIN; construction
variable:
</para>
<example_commands>
  # ...
  env.POInit(['en', 'pl'], POTDOMAIN='foo') # foo.pot --&gt; [en.po, pl.po] 
</example_commands>

<para>
<emphasis>Example 4</emphasis>.
Initialize <literal>PO</literal> files for languages defined in
<filename>LINGUAS</filename> file. The files will be initialized from template
<filename>messages.pot</filename>:
</para>
<example_commands>
  # ...
  env.POInit(LINGUAS_FILE = 1) # needs 'LINGUAS' file
</example_commands>

<para>
<emphasis>Example 5</emphasis>.
Initialize <filename>en.po</filename> and <filename>pl.pl</filename>
<literal>PO</literal> files plus files for languages defined in
<filename>LINGUAS</filename> file. The files will be initialized from template
<filename>messages.pot</filename>:
</para>
<example_commands>
  # ...
  env.POInit(['en', 'pl'], LINGUAS_FILE = 1)
</example_commands>

<para>
<emphasis>Example 6</emphasis>.
You may preconfigure your environment first, and then initialize
<literal>PO</literal> files:
</para>
<example_commands>
  # ...
  env['POAUTOINIT'] = 1
  env['LINGUAS_FILE'] = 1
  env['POTDOMAIN'] = 'foo'
  env.POInit()
</example_commands>
<para>
which has same efect as:
</para>
<example_commands>
  # ...
  env.POInit(POAUTOINIT = 1, LINGUAS_FILE = 1, POTDOMAIN = 'foo')
</example_commands>
</summary>
</builder>

<!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
<cvar name="POCREATE_ALIAS">
<summary>
<para>
Common alias for all <literal>PO</literal> files created with &b-POInit;
builder (default: <literal>'po-create'</literal>).
See &t-link-msginit; tool and &b-link-POInit; builder.
</para>
</summary>
</cvar>
<!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
<cvar name="POSUFFIX">
<summary>
<para>
Suffix used for <literal>PO</literal> files (default: <literal>'.po'</literal>)
See &t-link-msginit; tool and &b-link-POInit; builder.
</para>
</summary>
</cvar>
<!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
<cvar name="MSGINIT">
<summary>
<para>
Path to <command>msginit(1)</command> program (found via
<literal>Detect()</literal>).
See &t-link-msginit; tool and &b-link-POInit; builder.
</para>
</summary>
</cvar>
<!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
<cvar name="MSGINITCOM">
<summary>
<para>
Complete command line to run <command>msginit(1)</command> program.
See &t-link-msginit; tool and &b-link-POInit; builder.
</para>
</summary>
</cvar>
<!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
<cvar name="MSGINITCOMSTR">
<summary>
<para>
String to display when <command>msginit(1)</command> is invoked 
(default: <literal>''</literal>, which means ``print &cv-link-MSGINITCOM;'').
See &t-link-msginit; tool and &b-link-POInit; builder.
</para>
</summary>
</cvar>
<!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
<cvar name="MSGINITFLAGS">
<summary>
<para>
List of additional flags to <command>msginit(1)</command> (default:
<literal>[]</literal>).
See &t-link-msginit; tool and &b-link-POInit; builder.
</para>
</summary>
</cvar>
<!-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -->
<cvar name="_MSGINITLOCALE">
<summary>
<para>
Internal ``macro''. Computes locale (language) name based on target filename
(default: <literal>'${TARGET.filebase}' </literal>).
</para>
<para>
See &t-link-msginit; tool and &b-link-POInit; builder.
</para>
</summary>
</cvar>

</sconsdoc>