i18n.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Wed, 16 Jun 2010 09:21:49 +0200
changeset 5754 51179e0bb250
parent 5424 8ecbcbff9777
child 6356 e89f71a41e20
permissions -rw-r--r--
[test] support for test on postgres database using the same mecanism as sqlite: one template database generated when necessary + actual test database created from the template * * * [test] reset postgres database between test of the same fixture
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# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
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#
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# This file is part of CubicWeb.
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#
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# CubicWeb is free software: you can redistribute it and/or modify it under the
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# terms of the GNU Lesser General Public License as published by the Free
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# Software Foundation, either version 2.1 of the License, or (at your option)
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# any later version.
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#
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Lesser General Public License along
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# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
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"""Some i18n/gettext utilities.
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"""
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__docformat__ = "restructuredtext en"
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import re
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import os
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from os.path import join, basename, splitext, exists
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from glob import glob
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from cubicweb.toolsutils import create_dir
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def extract_from_tal(files, output_file):
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    """extract i18n strings from tal and write them into the given output file
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    using standard python gettext marker (_)
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    """
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    output = open(output_file, 'w')
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    for filepath in files:
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        for match in re.finditer('i18n:(content|replace)="([^"]+)"', open(filepath).read()):
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            print >> output, '_("%s")' % match.group(2)
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    output.close()
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def add_msg(w, msgid, msgctx=None):
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    """write an empty pot msgid definition"""
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    if isinstance(msgid, unicode):
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        msgid = msgid.encode('utf-8')
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    if msgctx:
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        if isinstance(msgctx, unicode):
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            msgctx = msgctx.encode('utf-8')
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        w('msgctxt "%s"\n' % msgctx)
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    msgid = msgid.replace('"', r'\"').splitlines()
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    if len(msgid) > 1:
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        w('msgid ""\n')
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        for line in msgid:
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            w('"%s"' % line.replace('"', r'\"'))
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    else:
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        w('msgid "%s"\n' % msgid[0])
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    w('msgstr ""\n\n')
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def execute(cmd):
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    """display the command, execute it and raise an Exception if returned
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    status != 0
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    """
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    from subprocess import call
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    print cmd.replace(os.getcwd() + os.sep, '')
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    status = call(cmd, shell=True)
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    if status != 0:
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        raise Exception('status = %s' % status)
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def available_catalogs(i18ndir=None):
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    if i18ndir is None:
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        wildcard = '*.po'
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    else:
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        wildcard = join(i18ndir, '*.po')
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    for popath in glob(wildcard):
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        lang = splitext(basename(popath))[0]
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        yield lang, popath
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def compile_i18n_catalogs(sourcedirs, destdir, langs):
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    """generate .mo files for a set of languages into the `destdir` i18n directory
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    """
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    from logilab.common.fileutils import ensure_fs_mode
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    print '-> compiling %s catalogs...' % destdir
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    errors = []
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    for lang in langs:
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        langdir = join(destdir, lang, 'LC_MESSAGES')
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        if not exists(langdir):
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            create_dir(langdir)
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        pofiles = [join(path, '%s.po' % lang) for path in sourcedirs]
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        pofiles = [pof for pof in pofiles if exists(pof)]
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        mergedpo = join(destdir, '%s_merged.po' % lang)
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        try:
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            # merge instance/cubes messages catalogs with the stdlib's one
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            execute('msgcat --use-first --sort-output --strict -o "%s" %s'
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                    % (mergedpo, ' '.join('"%s"' % f for f in pofiles)))
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            # make sure the .mo file is writeable and compiles with *msgfmt*
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            applmo = join(destdir, lang, 'LC_MESSAGES', 'cubicweb.mo')
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            try:
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                ensure_fs_mode(applmo)
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            except OSError:
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                pass # suppose not exists
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            execute('msgfmt "%s" -o "%s"' % (mergedpo, applmo))
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        except Exception, ex:
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            errors.append('while handling language %s: %s' % (lang, ex))
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        try:
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            # clean everything
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            os.unlink(mergedpo)
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        except Exception:
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            continue
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    return errors