django1/django/core/management/commands/compilemessages.py

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2012-08-09 05:40:20 +08:00
from __future__ import unicode_literals
import codecs
import os
from optparse import make_option
from django.core.management.base import BaseCommand, CommandError
from django.core.management.utils import find_command, popen_wrapper
from django.utils._os import npath
def has_bom(fn):
with open(fn, 'rb') as f:
sample = f.read(4)
2012-08-09 05:40:20 +08:00
return sample[:3] == b'\xef\xbb\xbf' or \
sample.startswith(codecs.BOM_UTF16_LE) or \
sample.startswith(codecs.BOM_UTF16_BE)
def compile_messages(stdout, locale=None):
program = 'msgfmt'
if find_command(program) is None:
raise CommandError("Can't find %s. Make sure you have GNU gettext tools 0.15 or newer installed." % program)
basedirs = [os.path.join('conf', 'locale'), 'locale']
if os.environ.get('DJANGO_SETTINGS_MODULE'):
from django.conf import settings
basedirs.extend(settings.LOCALE_PATHS)
# Gather existing directories.
basedirs = set(map(os.path.abspath, filter(os.path.isdir, basedirs)))
if not basedirs:
raise CommandError("This script should be run from the Django Git checkout or your project or app tree, or with the settings module specified.")
for basedir in basedirs:
if locale:
dirs = [os.path.join(basedir, l, 'LC_MESSAGES') for l in (locale if isinstance(locale, list) else [locale])]
else:
dirs = [basedir]
for ldir in dirs:
for dirpath, dirnames, filenames in os.walk(ldir):
for f in filenames:
if not f.endswith('.po'):
continue
stdout.write('processing file %s in %s\n' % (f, dirpath))
fn = os.path.join(dirpath, f)
if has_bom(fn):
raise CommandError("The %s file has a BOM (Byte Order Mark). Django only supports .po files encoded in UTF-8 and without any BOM." % fn)
pf = os.path.splitext(fn)[0]
args = [program, '--check-format', '-o', npath(pf + '.mo'), npath(pf + '.po')]
output, errors, status = popen_wrapper(args)
if status:
if errors:
msg = "Execution of %s failed: %s" % (program, errors)
else:
msg = "Execution of %s failed" % program
raise CommandError(msg)
class Command(BaseCommand):
option_list = BaseCommand.option_list + (
make_option('--locale', '-l', dest='locale', action='append',
help='locale(s) to process (e.g. de_AT). Default is to process all. Can be used multiple times, accepts a comma-separated list of locale names.'),
)
help = 'Compiles .po files to .mo files for use with builtin gettext support.'
requires_model_validation = False
leave_locale_alone = True
def handle(self, **options):
locale = options.get('locale')
compile_messages(self.stdout, locale=locale)