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

395 lines
17 KiB
Python

import fnmatch
import glob
import os
import re
import sys
from itertools import dropwhile
from optparse import make_option
from subprocess import PIPE, Popen
import django
from django.core.management.base import CommandError, NoArgsCommand
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)
def handle_extensions(extensions=('html',), ignored=('py',)):
"""
Organizes multiple extensions that are separated with commas or passed by
using --extension/-e multiple times. Note that the .py extension is ignored
here because of the way non-*.py files are handled in make_messages() (they
are copied to file.ext.py files to trick xgettext to parse them as Python
files).
For example: running 'django-admin makemessages -e js,txt -e xhtml -a'
would result in an extension list: ['.js', '.txt', '.xhtml']
>>> handle_extensions(['.html', 'html,js,py,py,py,.py', 'py,.py'])
set(['.html', '.js'])
>>> handle_extensions(['.html, txt,.tpl'])
set(['.html', '.tpl', '.txt'])
"""
ext_list = []
for ext in extensions:
ext_list.extend(ext.replace(' ', '').split(','))
for i, ext in enumerate(ext_list):
if not ext.startswith('.'):
ext_list[i] = '.%s' % ext_list[i]
return set([x for x in ext_list if x.strip('.') not in ignored])
def _popen(cmd):
"""
Friendly wrapper around Popen for Windows
"""
p = Popen(cmd, shell=True, stdout=PIPE, stderr=PIPE, close_fds=os.name != 'nt', universal_newlines=True)
return p.communicate()
def walk(root, topdown=True, onerror=None, followlinks=False,
ignore_patterns=None, verbosity=0, stdout=sys.stdout):
"""
A version of os.walk that can follow symlinks for Python < 2.6
"""
if ignore_patterns is None:
ignore_patterns = []
dir_suffix = '%s*' % os.sep
norm_patterns = map(lambda p: p.endswith(dir_suffix)
and p[:-len(dir_suffix)] or p, ignore_patterns)
for dirpath, dirnames, filenames in os.walk(root, topdown, onerror):
remove_dirs = []
for dirname in dirnames:
if is_ignored(os.path.normpath(os.path.join(dirpath, dirname)), norm_patterns):
remove_dirs.append(dirname)
for dirname in remove_dirs:
dirnames.remove(dirname)
if verbosity > 1:
stdout.write('ignoring directory %s\n' % dirname)
yield (dirpath, dirnames, filenames)
if followlinks:
for d in dirnames:
p = os.path.join(dirpath, d)
if os.path.islink(p):
for link_dirpath, link_dirnames, link_filenames in walk(p):
yield (link_dirpath, link_dirnames, link_filenames)
def is_ignored(path, ignore_patterns):
"""
Helper function to check if the given path should be ignored or not.
"""
for pattern in ignore_patterns:
if fnmatch.fnmatchcase(path, pattern):
return True
return False
def find_files(root, ignore_patterns, verbosity, stdout=sys.stdout, symlinks=False):
"""
Helper function to get all files in the given root.
"""
all_files = []
for (dirpath, dirnames, filenames) in walk(root, followlinks=symlinks,
ignore_patterns=ignore_patterns, verbosity=verbosity, stdout=stdout):
for filename in filenames:
norm_filepath = os.path.normpath(os.path.join(dirpath, filename))
if is_ignored(norm_filepath, ignore_patterns):
if verbosity > 1:
stdout.write('ignoring file %s in %s\n' % (filename, dirpath))
else:
all_files.extend([(dirpath, filename)])
all_files.sort()
return all_files
def copy_plural_forms(msgs, locale, domain, verbosity, stdout=sys.stdout):
"""
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 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 open(django_po, 'rU') as fp:
m = plural_forms_re.search(fp.read())
if m:
if verbosity > 1:
stdout.write("copying plural forms: %s\n" % m.group('value'))
lines = []
seen = False
for line in msgs.split('\n'):
if not line and not seen:
line = '%s\n' % m.group('value')
seen = True
lines.append(line)
msgs = '\n'.join(lines)
break
return msgs
def write_pot_file(potfile, msgs, file, work_file, is_templatized):
"""
Write the :param potfile: POT file with the :param msgs: contents,
previously making sure its format is valid.
"""
if is_templatized:
old = '#: ' + work_file[2:]
new = '#: ' + file[2:]
msgs = msgs.replace(old, new)
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, 'ab') as fp:
fp.write(msgs)
def process_file(file, dirpath, potfile, domain, verbosity,
extensions, wrap, location, stdout=sys.stdout):
"""
Extract translatable literals from :param file: for :param domain:
creating or updating the :param potfile: POT file.
Uses the xgettext GNU gettext utility.
"""
from django.utils.translation import templatize
if verbosity > 1:
stdout.write('processing file %s in %s\n' % (file, dirpath))
_, file_ext = os.path.splitext(file)
if domain == 'djangojs' and file_ext in extensions:
is_templatized = True
orig_file = os.path.join(dirpath, file)
with open(orig_file) as fp:
src_data = fp.read()
src_data = prepare_js_for_gettext(src_data)
thefile = '%s.c' % file
work_file = os.path.join(dirpath, thefile)
with open(work_file, "w") as fp:
fp.write(src_data)
cmd = (
'xgettext -d %s -L C %s %s --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 -o - "%s"' %
(domain, wrap, location, work_file))
elif domain == 'django' and (file_ext == '.py' or file_ext in extensions):
thefile = file
orig_file = os.path.join(dirpath, file)
is_templatized = file_ext in extensions
if is_templatized:
with open(orig_file, "rU") as fp:
src_data = fp.read()
thefile = '%s.py' % file
content = templatize(src_data, orig_file[2:])
with open(os.path.join(dirpath, thefile), "w") as fp:
fp.write(content)
work_file = os.path.join(dirpath, thefile)
cmd = (
'xgettext -d %s -L Python %s %s --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 -o - "%s"' %
(domain, wrap, location, work_file))
else:
return
msgs, errors = _popen(cmd)
if errors:
if is_templatized:
os.unlink(work_file)
if os.path.exists(potfile):
os.unlink(potfile)
raise CommandError(
"errors happened while running xgettext on %s\n%s" %
(file, errors))
if msgs:
write_pot_file(potfile, msgs, orig_file, work_file, is_templatized)
if is_templatized:
os.unlink(work_file)
def write_po_file(pofile, potfile, domain, locale, verbosity, stdout,
copy_pforms, wrap, location, no_obsolete):
"""
Creates of updates the :param pofile: PO file for :param domain: and :param
locale:. Uses contents of the existing :param potfile:.
Uses mguniq, msgmerge, and msgattrib GNU gettext utilities.
"""
msgs, errors = _popen('msguniq %s %s --to-code=utf-8 "%s"' %
(wrap, location, potfile))
if errors:
os.unlink(potfile)
raise CommandError("errors happened while running msguniq\n%s" % errors)
if os.path.exists(pofile):
with open(potfile, 'w') as fp:
fp.write(msgs)
msgs, errors = _popen('msgmerge %s %s -q "%s" "%s"' %
(wrap, location, pofile, potfile))
if errors:
os.unlink(potfile)
raise CommandError(
"errors happened while running msgmerge\n%s" % errors)
elif copy_pforms:
msgs = copy_plural_forms(msgs, locale, domain, verbosity, stdout)
msgs = msgs.replace(
"#. #-#-#-#-# %s.pot (PACKAGE VERSION) #-#-#-#-#\n" % domain, "")
with open(pofile, 'wb') as fp:
fp.write(msgs)
os.unlink(potfile)
if no_obsolete:
msgs, errors = _popen('msgattrib %s %s -o "%s" --no-obsolete "%s"' %
(wrap, location, pofile, pofile))
if errors:
raise CommandError(
"errors happened while running msgattrib\n%s" % errors)
def make_messages(locale=None, domain='django', verbosity=1, all=False,
extensions=None, symlinks=False, ignore_patterns=None, no_wrap=False,
no_location=False, no_obsolete=False, stdout=sys.stdout):
"""
Uses the ``locale/`` directory from the Django Git tree or an
application/project to process all files with translatable literals for
the :param domain: domain and :param locale: locale.
"""
# 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 ignore_patterns is None:
ignore_patterns = []
invoked_for_django = False
if os.path.isdir(os.path.join('conf', 'locale')):
localedir = os.path.abspath(os.path.join('conf', 'locale'))
invoked_for_django = True
# Ignoring all contrib apps
ignore_patterns += ['contrib/*']
elif os.path.isdir('locale'):
localedir = os.path.abspath('locale')
else:
raise CommandError("This script should be run from the Django Git "
"tree or your project or app tree. If you did indeed run it "
"from the Git checkout or your project or application, "
"maybe you are just missing the conf/locale (in the django "
"tree) or locale (for project and application) directory? It "
"is not created automatically, you have to create it by hand "
"if you want to enable i18n for your project or application.")
if domain not in ('django', 'djangojs'):
raise CommandError("currently makemessages only supports domains 'django' and 'djangojs'")
if (locale is None and not all) or domain is None:
message = "Type '%s help %s' for usage information." % (os.path.basename(sys.argv[0]), sys.argv[1])
raise CommandError(message)
# We require gettext version 0.15 or newer.
output = _popen('xgettext --version')[0]
match = re.search(r'(?P<major>\d+)\.(?P<minor>\d+)', output)
if match:
xversion = (int(match.group('major')), int(match.group('minor')))
if xversion < (0, 15):
raise CommandError("Django internationalization requires GNU "
"gettext 0.15 or newer. You are using version %s, please "
"upgrade your gettext toolset." % match.group())
locales = []
if locale is not None:
locales.append(locale)
elif all:
locale_dirs = filter(os.path.isdir, glob.glob('%s/*' % localedir))
locales = [os.path.basename(l) for l in locale_dirs]
wrap = '--no-wrap' if no_wrap else ''
location = '--no-location' if no_location else ''
for locale in locales:
if verbosity > 0:
stdout.write("processing language %s\n" % locale)
basedir = os.path.join(localedir, locale, 'LC_MESSAGES')
if not os.path.isdir(basedir):
os.makedirs(basedir)
pofile = os.path.join(basedir, '%s.po' % domain)
potfile = os.path.join(basedir, '%s.pot' % domain)
if os.path.exists(potfile):
os.unlink(potfile)
for dirpath, file in find_files(".", ignore_patterns, verbosity,
stdout, symlinks=symlinks):
process_file(file, dirpath, potfile, domain, verbosity, extensions,
wrap, location, stdout)
if os.path.exists(potfile):
write_po_file(pofile, potfile, domain, locale, verbosity, stdout,
not invoked_for_django, wrap, location, no_obsolete)
class Command(NoArgsCommand):
option_list = NoArgsCommand.option_list + (
make_option('--locale', '-l', default=None, dest='locale',
help='Creates or updates the message files for the given locale (e.g. pt_BR).'),
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 '*~'."),
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"),
)
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_model_validation = False
can_import_settings = False
def handle_noargs(self, *args, **options):
locale = options.get('locale')
domain = options.get('domain')
verbosity = int(options.get('verbosity'))
process_all = options.get('all')
extensions = options.get('extensions')
symlinks = options.get('symlinks')
ignore_patterns = options.get('ignore_patterns')
if options.get('use_default_ignore_patterns'):
ignore_patterns += ['CVS', '.*', '*~']
ignore_patterns = list(set(ignore_patterns))
no_wrap = options.get('no_wrap')
no_location = options.get('no_location')
no_obsolete = options.get('no_obsolete')
if domain == 'djangojs':
exts = extensions if extensions else ['js']
else:
exts = extensions if extensions else ['html', 'txt']
extensions = handle_extensions(exts)
if verbosity > 1:
self.stdout.write('examining files with the extensions: %s\n'
% get_text_list(list(extensions), 'and'))
make_messages(locale, domain, verbosity, process_all, extensions,
symlinks, ignore_patterns, no_wrap, no_location, no_obsolete, self.stdout)