106 lines
4.0 KiB
Python
106 lines
4.0 KiB
Python
from __future__ import unicode_literals
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import codecs
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import os
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from optparse import make_option
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from django.core.management.base import BaseCommand, CommandError
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from django.core.management.utils import find_command, popen_wrapper
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from django.utils._os import npath, upath
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def has_bom(fn):
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with open(fn, 'rb') as f:
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sample = f.read(4)
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return sample[:3] == b'\xef\xbb\xbf' or \
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sample.startswith(codecs.BOM_UTF16_LE) or \
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sample.startswith(codecs.BOM_UTF16_BE)
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def is_writable(path):
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# Known side effect: updating file access/modified time to current time if
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# it is writable.
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try:
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with open(path, 'a'):
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os.utime(path, None)
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except (IOError, OSError):
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return False
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return True
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class Command(BaseCommand):
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option_list = BaseCommand.option_list + (
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make_option('--locale', '-l', dest='locale', action='append',
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help='locale(s) to process (e.g. de_AT). Default is to process all. Can be used multiple times.'),
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)
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help = 'Compiles .po files to .mo files for use with builtin gettext support.'
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requires_system_checks = False
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leave_locale_alone = True
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program = 'msgfmt'
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program_options = ['--check-format']
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def handle(self, **options):
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locale = options.get('locale')
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self.verbosity = int(options.get('verbosity'))
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if find_command(self.program) is None:
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raise CommandError("Can't find %s. Make sure you have GNU gettext "
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"tools 0.15 or newer installed." % self.program)
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basedirs = [os.path.join('conf', 'locale'), 'locale']
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if os.environ.get('DJANGO_SETTINGS_MODULE'):
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from django.conf import settings
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basedirs.extend([upath(path) for path in settings.LOCALE_PATHS])
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# Gather existing directories.
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basedirs = set(map(os.path.abspath, filter(os.path.isdir, basedirs)))
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if not basedirs:
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raise CommandError("This script should be run from the Django Git "
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"checkout or your project or app tree, or with "
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"the settings module specified.")
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for basedir in basedirs:
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if locale:
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dirs = [os.path.join(basedir, l, 'LC_MESSAGES') for l in locale]
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else:
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dirs = [basedir]
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locations = []
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for ldir in dirs:
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for dirpath, dirnames, filenames in os.walk(ldir):
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locations.extend((dirpath, f) for f in filenames if f.endswith('.po'))
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if locations:
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self.compile_messages(locations)
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def compile_messages(self, locations):
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"""
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Locations is a list of tuples: [(directory, file), ...]
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"""
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for i, (dirpath, f) in enumerate(locations):
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if self.verbosity > 0:
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self.stdout.write('processing file %s in %s\n' % (f, dirpath))
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po_path = os.path.join(dirpath, f)
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if has_bom(po_path):
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raise CommandError("The %s file has a BOM (Byte Order Mark). "
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"Django only supports .po files encoded in "
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"UTF-8 and without any BOM." % po_path)
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base_path = os.path.splitext(po_path)[0]
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# Check writability on first location
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if i == 0 and not is_writable(npath(base_path + '.mo')):
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self.stderr.write("The po files under %s are in a seemingly not "
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"writable location. mo files will not be updated/created." % dirpath)
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return
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args = [self.program] + self.program_options + ['-o',
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npath(base_path + '.mo'), npath(base_path + '.po')]
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output, errors, status = popen_wrapper(args)
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if status:
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if errors:
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msg = "Execution of %s failed: %s" % (self.program, errors)
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else:
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msg = "Execution of %s failed" % self.program
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raise CommandError(msg)
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