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from __future__ import unicode_literals
import fnmatch
import glob
import io
import locale
import os
import re
import sys
from itertools import dropwhile
import django
from django.conf import settings
from django.core.management.base import BaseCommand, CommandError
from django.core.management.utils import (
find_command, handle_extensions, popen_wrapper,
)
from django.utils import six
from django.utils._os import upath
from django.utils.encoding import force_str
from django.utils.functional import cached_property, total_ordering
from django.utils.jslex import prepare_js_for_gettext
from django.utils.text import get_text_list
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)
def gettext_popen_wrapper(args, os_err_exc_type=CommandError):
"""
Makes sure text obtained from stdout of gettext utilities is Unicode.
"""
stdout, stderr, status_code = popen_wrapper(args, os_err_exc_type=os_err_exc_type)
if os.name == 'nt' and six.PY3:
# This looks weird because it's undoing what subprocess.Popen(universal_newlines=True).communicate()
# does when capturing PO files contents from stdout of gettext command line programs. See ticket #23271
# for details. No need to do anything on Python 2 because it's already a UTF-8-encoded byte-string there
stdout = stdout.encode(locale.getpreferredencoding(False)).decode('utf-8')
if six.PY2:
stdout = stdout.decode('utf-8')
return stdout, stderr, status_code
@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)[1]
if domain == 'djangojs':
orig_file = os.path.join(self.dirpath, self.file)
work_file = orig_file
is_templatized = command.gettext_version < (0, 18, 3)
if is_templatized:
with io.open(orig_file, 'r', encoding=settings.FILE_CHARSET) as fp:
src_data = fp.read()
src_data = prepare_js_for_gettext(src_data)
work_file = os.path.join(self.dirpath, '%s.c' % self.file)
with io.open(work_file, "w", encoding='utf-8') as fp:
fp.write(src_data)
args = [
'xgettext',
'-d', domain,
'--language=%s' % ('C' if is_templatized else 'JavaScript',),
'--keyword=gettext_noop',
'--keyword=gettext_lazy',
'--keyword=ngettext_lazy:1,2',
'--keyword=pgettext:1c,2',
'--keyword=npgettext:1c,2,3',
'--output=-'
] + command.xgettext_options
args.append(work_file)
elif domain == 'django':
orig_file = os.path.join(self.dirpath, self.file)
work_file = orig_file
is_templatized = file_ext != '.py'
if is_templatized:
with io.open(orig_file, encoding=settings.FILE_CHARSET) as fp:
src_data = fp.read()
content = templatize(src_data, orig_file[2:])
work_file = os.path.join(self.dirpath, '%s.py' % self.file)
with io.open(work_file, "w", encoding='utf-8') as fp:
fp.write(content)
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',
'--output=-'
] + command.xgettext_options
args.append(work_file)
else:
return
msgs, errors, status = gettext_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 io.open(potfile, 'a', encoding='utf-8') as fp:
fp.write(msgs)
class Command(BaseCommand):
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, --exclude or --all options.")
requires_system_checks = False
leave_locale_alone = True
msgmerge_options = ['-q', '--previous']
msguniq_options = ['--to-code=utf-8']
msgattrib_options = ['--no-obsolete']
xgettext_options = ['--from-code=UTF-8', '--add-comments=Translators']
def add_arguments(self, parser):
parser.add_argument('--locale', '-l', default=[], 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.')
parser.add_argument('--exclude', '-x', default=[], dest='exclude', action='append',
help='Locales to exclude. Default is none. Can be used multiple times.')
parser.add_argument('--domain', '-d', default='django', dest='domain',
help='The domain of the message files (default: "django").')
parser.add_argument('--all', '-a', action='store_true', dest='all',
default=False, help='Updates the message files for all existing locales.')
parser.add_argument('--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')
parser.add_argument('--symlinks', '-s', action='store_true', dest='symlinks',
default=False, help='Follows symlinks to directories when examining '
'source code and templates for translation strings.')
parser.add_argument('--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.')
parser.add_argument('--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'.")
parser.add_argument('--no-wrap', action='store_true', dest='no_wrap',
default=False, help="Don't break long message lines into several lines.")
parser.add_argument('--no-location', action='store_true', dest='no_location',
default=False, help="Don't write '#: filename:line' lines.")
parser.add_argument('--no-obsolete', action='store_true', dest='no_obsolete',
default=False, help="Remove obsolete message strings.")
parser.add_argument('--keep-pot', action='store_true', dest='keep_pot',
default=False, help="Keep .pot file after making messages. Useful when debugging.")
def handle(self, *args, **options):
locale = options.get('locale')
exclude = options.get('exclude')
self.domain = options.get('domain')
self.verbosity = options.get('verbosity')
process_all = options.get('all')
extensions = options.get('extensions')
self.symlinks = options.get('symlinks')
# Need to ensure that the i18n framework is enabled
if settings.configured:
settings.USE_I18N = True
else:
settings.configure(USE_I18N=True)
ignore_patterns = options.get('ignore_patterns')
if options.get('use_default_ignore_patterns'):
ignore_patterns += ['CVS', '.*', '*~', '*.pyc']
self.ignore_patterns = list(set(ignore_patterns))
# Avoid messing with mutable class variables
if options.get('no_wrap'):
self.msgmerge_options = self.msgmerge_options[:] + ['--no-wrap']
self.msguniq_options = self.msguniq_options[:] + ['--no-wrap']
self.msgattrib_options = self.msgattrib_options[:] + ['--no-wrap']
self.xgettext_options = self.xgettext_options[:] + ['--no-wrap']
if options.get('no_location'):
self.msgmerge_options = self.msgmerge_options[:] + ['--no-location']
self.msguniq_options = self.msguniq_options[:] + ['--no-location']
self.msgattrib_options = self.msgattrib_options[:] + ['--no-location']
self.xgettext_options = self.xgettext_options[:] + ['--no-location']
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', 'py']
self.extensions = handle_extensions(exts)
if (locale is None and not exclude 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]))
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
else:
self.locale_paths.extend(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
locale_dirs = filter(os.path.isdir, glob.glob('%s/*' % self.default_locale_path))
all_locales = map(os.path.basename, locale_dirs)
# Account for excluded locales
if process_all:
locales = all_locales
else:
locales = locale or all_locales
locales = set(locales) - set(exclude)
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()
@cached_property
def gettext_version(self):
out, err, status = gettext_popen_wrapper(['xgettext', '--version'])
m = re.search(r'(\d+)\.(\d+)\.?(\d+)?', out)
if m:
return tuple(int(d) for d in m.groups() if d is not None)
else:
raise CommandError("Unable to get gettext version. Is it installed?")
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'] + self.msguniq_options + [potfile]
msgs, errors, status = gettext_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 io.open(potfile, 'w', encoding='utf-8') 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) or
fnmatch.fnmatchcase(path, pattern))
return any(ignore(pattern) for pattern in ignore_patterns)
ignore_patterns = [os.path.normcase(p) for p in self.ignore_patterns]
dir_suffixes = {'%s*' % path_sep for path_sep in {'/', os.sep}}
norm_patterns = []
for p in ignore_patterns:
for dir_suffix in dir_suffixes:
if p.endswith(dir_suffix):
norm_patterns.append(p[:-len(dir_suffix)])
break
else:
norm_patterns.append(p)
all_files = []
ignored_roots = [os.path.normpath(p) for p in (settings.MEDIA_ROOT, settings.STATIC_ROOT) if p]
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) or
os.path.join(os.path.abspath(dirpath), dirname) in ignored_roots):
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))
file_ext = os.path.splitext(filename)[1]
if file_ext not in self.extensions or 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'] + self.msgmerge_options + [pofile, potfile]
msgs, errors, status = gettext_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 io.open(potfile, 'r', encoding='utf-8') 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 io.open(pofile, 'w', encoding='utf-8') as fp:
fp.write(msgs)
if self.no_obsolete:
args = ['msgattrib'] + self.msgattrib_options + ['-o', pofile, pofile]
msgs, errors, status = gettext_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(upath(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', 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
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