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

460 lines
19 KiB
Python

import fnmatch
import glob
import io
import os
import re
import sys
from itertools import dropwhile
from optparse import make_option
import django
from django.core.management.base import CommandError, NoArgsCommand
from django.core.management.utils import (handle_extensions, find_command,
popen_wrapper)
from django.utils.encoding import force_str
from django.utils.functional import total_ordering
from django.utils import six
from django.utils.text import get_text_list
from django.utils.jslex import prepare_js_for_gettext
plural_forms_re = re.compile(r'^(?P<value>"Plural-Forms.+?\\n")\s*$', re.MULTILINE | re.DOTALL)
STATUS_OK = 0
def check_programs(*programs):
for program in programs:
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)
@total_ordering
class TranslatableFile(object):
def __init__(self, dirpath, file_name, locale_dir):
self.file = file_name
self.dirpath = dirpath
self.locale_dir = locale_dir
def __repr__(self):
return "<TranslatableFile: %s>" % os.sep.join([self.dirpath, self.file])
def __eq__(self, other):
return self.path == other.path
def __lt__(self, other):
return self.path < other.path
@property
def path(self):
return os.path.join(self.dirpath, self.file)
def process(self, command, domain):
"""
Extract translatable literals from self.file for :param domain:,
creating or updating the POT file.
Uses the xgettext GNU gettext utility.
"""
from django.utils.translation import templatize
if command.verbosity > 1:
command.stdout.write('processing file %s in %s\n' % (self.file, self.dirpath))
_, file_ext = os.path.splitext(self.file)
if domain == 'djangojs' and file_ext in command.extensions:
is_templatized = True
orig_file = os.path.join(self.dirpath, self.file)
with open(orig_file) as fp:
src_data = fp.read()
src_data = prepare_js_for_gettext(src_data)
thefile = '%s.c' % self.file
work_file = os.path.join(self.dirpath, thefile)
with open(work_file, "w") as fp:
fp.write(src_data)
args = [
'xgettext',
'-d', domain,
'--language=C',
'--keyword=gettext_noop',
'--keyword=gettext_lazy',
'--keyword=ngettext_lazy:1,2',
'--keyword=pgettext:1c,2',
'--keyword=npgettext:1c,2,3',
'--from-code=UTF-8',
'--add-comments=Translators',
'--output=-'
]
if command.wrap:
args.append(command.wrap)
if command.location:
args.append(command.location)
args.append(work_file)
elif domain == 'django' and (file_ext == '.py' or file_ext in command.extensions):
thefile = self.file
orig_file = os.path.join(self.dirpath, self.file)
is_templatized = file_ext in command.extensions
if is_templatized:
with open(orig_file, 'r' if six.PY3 else 'rU') as fp:
src_data = fp.read()
thefile = '%s.py' % self.file
content = templatize(src_data, orig_file[2:])
with open(os.path.join(self.dirpath, thefile), "w") as fp:
fp.write(content)
work_file = os.path.join(self.dirpath, thefile)
args = [
'xgettext',
'-d', domain,
'--language=Python',
'--keyword=gettext_noop',
'--keyword=gettext_lazy',
'--keyword=ngettext_lazy:1,2',
'--keyword=ugettext_noop',
'--keyword=ugettext_lazy',
'--keyword=ungettext_lazy:1,2',
'--keyword=pgettext:1c,2',
'--keyword=npgettext:1c,2,3',
'--keyword=pgettext_lazy:1c,2',
'--keyword=npgettext_lazy:1c,2,3',
'--from-code=UTF-8',
'--add-comments=Translators',
'--output=-'
]
if command.wrap:
args.append(command.wrap)
if command.location:
args.append(command.location)
args.append(work_file)
else:
return
msgs, errors, status = popen_wrapper(args)
if errors:
if status != STATUS_OK:
if is_templatized:
os.unlink(work_file)
raise CommandError(
"errors happened while running xgettext on %s\n%s" %
(self.file, errors))
elif command.verbosity > 0:
# Print warnings
command.stdout.write(errors)
if msgs:
# Write/append messages to pot file
potfile = os.path.join(self.locale_dir, '%s.pot' % str(domain))
if is_templatized:
# Remove '.py' suffix
if os.name == 'nt':
# Preserve '.\' prefix on Windows to respect gettext behavior
old = '#: ' + work_file
new = '#: ' + orig_file
else:
old = '#: ' + work_file[2:]
new = '#: ' + orig_file[2:]
msgs = msgs.replace(old, new)
write_pot_file(potfile, msgs)
if is_templatized:
os.unlink(work_file)
def write_pot_file(potfile, msgs):
"""
Write the :param potfile: POT file with the :param msgs: contents,
previously making sure its format is valid.
"""
if os.path.exists(potfile):
# Strip the header
msgs = '\n'.join(dropwhile(len, msgs.split('\n')))
else:
msgs = msgs.replace('charset=CHARSET', 'charset=UTF-8')
with open(potfile, 'a') as fp:
fp.write(msgs)
class Command(NoArgsCommand):
option_list = NoArgsCommand.option_list + (
make_option('--locale', '-l', default=None, dest='locale', action='append',
help='Creates or updates the message files for the given locale(s) (e.g. pt_BR). '
'Can be used multiple times.'),
make_option('--domain', '-d', default='django', dest='domain',
help='The domain of the message files (default: "django").'),
make_option('--all', '-a', action='store_true', dest='all',
default=False, help='Updates the message files for all existing locales.'),
make_option('--extension', '-e', dest='extensions',
help='The file extension(s) to examine (default: "html,txt", or "js" if the domain is "djangojs"). Separate multiple extensions with commas, or use -e multiple times.',
action='append'),
make_option('--symlinks', '-s', action='store_true', dest='symlinks',
default=False, help='Follows symlinks to directories when examining source code and templates for translation strings.'),
make_option('--ignore', '-i', action='append', dest='ignore_patterns',
default=[], metavar='PATTERN', help='Ignore files or directories matching this glob-style pattern. Use multiple times to ignore more.'),
make_option('--no-default-ignore', action='store_false', dest='use_default_ignore_patterns',
default=True, help="Don't ignore the common glob-style patterns 'CVS', '.*', '*~' and '*.pyc'."),
make_option('--no-wrap', action='store_true', dest='no_wrap',
default=False, help="Don't break long message lines into several lines."),
make_option('--no-location', action='store_true', dest='no_location',
default=False, help="Don't write '#: filename:line' lines."),
make_option('--no-obsolete', action='store_true', dest='no_obsolete',
default=False, help="Remove obsolete message strings."),
make_option('--keep-pot', action='store_true', dest='keep_pot',
default=False, help="Keep .pot file after making messages. Useful when debugging."),
)
help = ("Runs over the entire source tree of the current directory and "
"pulls out all strings marked for translation. It creates (or updates) a message "
"file in the conf/locale (in the django tree) or locale (for projects and "
"applications) directory.\n\nYou must run this command with one of either the "
"--locale or --all options.")
requires_system_checks = False
leave_locale_alone = True
def handle_noargs(self, *args, **options):
locale = options.get('locale')
self.domain = options.get('domain')
self.verbosity = int(options.get('verbosity'))
process_all = options.get('all')
extensions = options.get('extensions')
self.symlinks = options.get('symlinks')
ignore_patterns = options.get('ignore_patterns')
if options.get('use_default_ignore_patterns'):
ignore_patterns += ['CVS', '.*', '*~', '*.pyc']
self.ignore_patterns = list(set(ignore_patterns))
self.wrap = '--no-wrap' if options.get('no_wrap') else ''
self.location = '--no-location' if options.get('no_location') else ''
self.no_obsolete = options.get('no_obsolete')
self.keep_pot = options.get('keep_pot')
if self.domain not in ('django', 'djangojs'):
raise CommandError("currently makemessages only supports domains "
"'django' and 'djangojs'")
if self.domain == 'djangojs':
exts = extensions if extensions else ['js']
else:
exts = extensions if extensions else ['html', 'txt']
self.extensions = handle_extensions(exts)
if (locale is None and not process_all) or self.domain is None:
raise CommandError("Type '%s help %s' for usage information." % (
os.path.basename(sys.argv[0]), sys.argv[1]))
# Need to ensure that the i18n framework is enabled
from django.conf import settings
if settings.configured:
settings.USE_I18N = True
else:
settings.configure(USE_I18N=True)
if self.verbosity > 1:
self.stdout.write('examining files with the extensions: %s\n'
% get_text_list(list(self.extensions), 'and'))
self.invoked_for_django = False
self.locale_paths = []
self.default_locale_path = None
if os.path.isdir(os.path.join('conf', 'locale')):
self.locale_paths = [os.path.abspath(os.path.join('conf', 'locale'))]
self.default_locale_path = self.locale_paths[0]
self.invoked_for_django = True
# Ignoring all contrib apps
self.ignore_patterns += ['contrib/*']
else:
self.locale_paths.extend(list(settings.LOCALE_PATHS))
# Allow to run makemessages inside an app dir
if os.path.isdir('locale'):
self.locale_paths.append(os.path.abspath('locale'))
if self.locale_paths:
self.default_locale_path = self.locale_paths[0]
if not os.path.exists(self.default_locale_path):
os.makedirs(self.default_locale_path)
# Build locale list
locales = []
if locale is not None:
locales = locale
elif process_all:
locale_dirs = filter(os.path.isdir, glob.glob('%s/*' % self.default_locale_path))
locales = [os.path.basename(l) for l in locale_dirs]
if locales:
check_programs('msguniq', 'msgmerge', 'msgattrib')
check_programs('xgettext')
try:
potfiles = self.build_potfiles()
# Build po files for each selected locale
for locale in locales:
if self.verbosity > 0:
self.stdout.write("processing locale %s\n" % locale)
for potfile in potfiles:
self.write_po_file(potfile, locale)
finally:
if not self.keep_pot:
self.remove_potfiles()
def build_potfiles(self):
"""
Build pot files and apply msguniq to them.
"""
file_list = self.find_files(".")
self.remove_potfiles()
for f in file_list:
try:
f.process(self, self.domain)
except UnicodeDecodeError:
self.stdout.write("UnicodeDecodeError: skipped file %s in %s" % (f.file, f.dirpath))
potfiles = []
for path in self.locale_paths:
potfile = os.path.join(path, '%s.pot' % str(self.domain))
if not os.path.exists(potfile):
continue
args = ['msguniq', '--to-code=utf-8']
if self.wrap:
args.append(self.wrap)
if self.location:
args.append(self.location)
args.append(potfile)
msgs, errors, status = popen_wrapper(args)
if errors:
if status != STATUS_OK:
raise CommandError(
"errors happened while running msguniq\n%s" % errors)
elif self.verbosity > 0:
self.stdout.write(errors)
with open(potfile, 'w') as fp:
fp.write(msgs)
potfiles.append(potfile)
return potfiles
def remove_potfiles(self):
for path in self.locale_paths:
pot_path = os.path.join(path, '%s.pot' % str(self.domain))
if os.path.exists(pot_path):
os.unlink(pot_path)
def find_files(self, root):
"""
Helper method to get all files in the given root. Also check that there
is a matching locale dir for each file.
"""
def is_ignored(path, ignore_patterns):
"""
Check if the given path should be ignored or not.
"""
filename = os.path.basename(path)
ignore = lambda pattern: fnmatch.fnmatchcase(filename, pattern)
return any(ignore(pattern) for pattern in ignore_patterns)
dir_suffix = '%s*' % os.sep
norm_patterns = [p[:-len(dir_suffix)] if p.endswith(dir_suffix) else p for p in self.ignore_patterns]
all_files = []
for dirpath, dirnames, filenames in os.walk(root, topdown=True, followlinks=self.symlinks):
for dirname in dirnames[:]:
if is_ignored(os.path.normpath(os.path.join(dirpath, dirname)), norm_patterns):
dirnames.remove(dirname)
if self.verbosity > 1:
self.stdout.write('ignoring directory %s\n' % dirname)
elif dirname == 'locale':
dirnames.remove(dirname)
self.locale_paths.insert(0, os.path.join(os.path.abspath(dirpath), dirname))
for filename in filenames:
file_path = os.path.normpath(os.path.join(dirpath, filename))
if is_ignored(file_path, self.ignore_patterns):
if self.verbosity > 1:
self.stdout.write('ignoring file %s in %s\n' % (filename, dirpath))
else:
locale_dir = None
for path in self.locale_paths:
if os.path.abspath(dirpath).startswith(os.path.dirname(path)):
locale_dir = path
break
if not locale_dir:
locale_dir = self.default_locale_path
if not locale_dir:
raise CommandError(
"Unable to find a locale path to store translations for file %s" % file_path)
all_files.append(TranslatableFile(dirpath, filename, locale_dir))
return sorted(all_files)
def write_po_file(self, potfile, locale):
"""
Creates or updates the PO file for self.domain and :param locale:.
Uses contents of the existing :param potfile:.
Uses msgmerge, and msgattrib GNU gettext utilities.
"""
basedir = os.path.join(os.path.dirname(potfile), locale, 'LC_MESSAGES')
if not os.path.isdir(basedir):
os.makedirs(basedir)
pofile = os.path.join(basedir, '%s.po' % str(self.domain))
if os.path.exists(pofile):
args = ['msgmerge', '-q']
if self.wrap:
args.append(self.wrap)
if self.location:
args.append(self.location)
args.extend([pofile, potfile])
msgs, errors, status = popen_wrapper(args)
if errors:
if status != STATUS_OK:
raise CommandError(
"errors happened while running msgmerge\n%s" % errors)
elif self.verbosity > 0:
self.stdout.write(errors)
else:
with open(potfile, 'r') as fp:
msgs = fp.read()
if not self.invoked_for_django:
msgs = self.copy_plural_forms(msgs, locale)
msgs = msgs.replace(
"#. #-#-#-#-# %s.pot (PACKAGE VERSION) #-#-#-#-#\n" % self.domain, "")
with open(pofile, 'w') as fp:
fp.write(msgs)
if self.no_obsolete:
args = ['msgattrib', '-o', pofile, '--no-obsolete']
if self.wrap:
args.append(self.wrap)
if self.location:
args.append(self.location)
args.append(pofile)
msgs, errors, status = popen_wrapper(args)
if errors:
if status != STATUS_OK:
raise CommandError(
"errors happened while running msgattrib\n%s" % errors)
elif self.verbosity > 0:
self.stdout.write(errors)
def copy_plural_forms(self, msgs, locale):
"""
Copies plural forms header contents from a Django catalog of locale to
the msgs string, inserting it at the right place. msgs should be the
contents of a newly created .po file.
"""
django_dir = os.path.normpath(os.path.join(os.path.dirname(django.__file__)))
if self.domain == 'djangojs':
domains = ('djangojs', 'django')
else:
domains = ('django',)
for domain in domains:
django_po = os.path.join(django_dir, 'conf', 'locale', locale, 'LC_MESSAGES', '%s.po' % domain)
if os.path.exists(django_po):
with io.open(django_po, 'r' if six.PY3 else 'rU', encoding='utf-8') as fp:
m = plural_forms_re.search(fp.read())
if m:
plural_form_line = force_str(m.group('value'))
if self.verbosity > 1:
self.stdout.write("copying plural forms: %s\n" % plural_form_line)
lines = []
found = False
for line in msgs.split('\n'):
if not found and (not line or plural_forms_re.search(line)):
line = '%s\n' % plural_form_line
found = True
lines.append(line)
msgs = '\n'.join(lines)
break
return msgs