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from __future__ import unicode_literals
import fnmatch
import glob
import io
import os
import re
import sys
from functools import total_ordering
from itertools import dropwhile
import django
from django.conf import settings
from import BaseCommand, CommandError
from import (
find_command, handle_extensions, popen_wrapper,
from django.utils import six
from django.utils._os import upath
from django.utils.encoding import DEFAULT_LOCALE_ENCODING, force_str
from django.utils.functional import cached_property
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)
NO_LOCALE_DIR = object()
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, stdout_encoding="utf-8"):
Makes sure text obtained from stdout of gettext utilities is Unicode.
# This both decodes utf-8 and cleans line endings. Simply using
# popen_wrapper(universal_newlines=True) doesn't properly handle the
# encoding. This goes back to popen's flaky support for encoding:
# This is a solution for #23271, #21928.
# No need to do anything on Python 2 because it's already a byte-string there.
manual_io_wrapper = six.PY3 and stdout_encoding != DEFAULT_LOCALE_ENCODING
stdout, stderr, status_code = popen_wrapper(args, os_err_exc_type=os_err_exc_type,
universal_newlines=not manual_io_wrapper)
if manual_io_wrapper:
stdout = io.TextIOWrapper(io.BytesIO(stdout), encoding=stdout_encoding).read()
if six.PY2:
stdout = stdout.decode(stdout_encoding)
return stdout, stderr, status_code
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
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, 'r', encoding=settings.FILE_CHARSET) as fp:
src_data =
src_data = prepare_js_for_gettext(src_data)
work_file = os.path.join(self.dirpath, '%s.c' % self.file)
with, "w", encoding='utf-8') as fp:
args = [
'-d', domain,
'--language=%s' % ('C' if is_templatized else 'JavaScript',),
] + command.xgettext_options
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, encoding=settings.FILE_CHARSET) as fp:
src_data =
content = templatize(src_data, orig_file[2:])
work_file = os.path.join(self.dirpath, '' % self.file)
with, "w", encoding='utf-8') as fp:
args = [
'-d', domain,
] + command.xgettext_options
msgs, errors, status = gettext_popen_wrapper(args)
if errors:
if status != STATUS_OK:
if is_templatized:
raise CommandError(
"errors happened while running xgettext on %s\n%s" %
(self.file, errors))
elif command.verbosity > 0:
# Print warnings
if msgs:
# Write/append messages to pot file
if self.locale_dir is NO_LOCALE_DIR:
file_path = os.path.normpath(os.path.join(self.dirpath, self.file))
raise CommandError(
"Unable to find a locale path to store translations for file %s" % file_path)
potfile = os.path.join(self.locale_dir, '%s.pot' % str(domain))
if is_templatized:
# Remove '.py' suffix
if == 'nt':
# Preserve '.\' prefix on Windows to respect gettext behavior
old = '#: ' + work_file
new = '#: ' + orig_file
old = '#: ' + work_file[2:]
new = '#: ' + orig_file[2:]
msgs = msgs.replace(old, new)
write_pot_file(potfile, msgs)
if is_templatized:
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')))
msgs = msgs.replace('charset=CHARSET', 'charset=UTF-8')
with, 'a', encoding='utf-8') as fp:
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,py", or "js" '
'if the domain is "djangojs"). Separate multiple extensions with '
'commas, or use -e multiple times.',
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
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']
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
# Allow to run makemessages inside an app dir
if os.path.isdir('locale'):
if self.locale_paths:
self.default_locale_path = self.locale_paths[0]
if not os.path.exists(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
locales = locale or all_locales
locales = set(locales) - set(exclude)
if locales:
check_programs('msguniq', 'msgmerge', 'msgattrib')
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)
if not self.keep_pot:
def gettext_version(self):
# Gettext tools will output system-encoded bytestrings instead of UTF-8,
# when looking up the version. It's especially a problem on Windows.
out, err, status = gettext_popen_wrapper(
['xgettext', '--version'],
m ='(\d+)\.(\d+)\.?(\d+)?', out)
if m:
return tuple(int(d) for d in m.groups() if d is not None)
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(".")
for f in file_list:
f.process(self, self.domain)
except UnicodeDecodeError as e:
"UnicodeDecodeError: skipped file %s in %s (reason: %s)" % (
potfiles = []
for path in self.locale_paths:
potfile = os.path.join(path, '%s.pot' % str(self.domain))
if not os.path.exists(potfile):
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:
with, 'w', encoding='utf-8') as fp:
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):
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):
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):
if self.verbosity > 1:
self.stdout.write('ignoring directory %s\n' % dirname)
elif dirname == 'locale':
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))
locale_dir = None
for path in self.locale_paths:
if os.path.abspath(dirpath).startswith(os.path.dirname(path)):
locale_dir = path
if not locale_dir:
locale_dir = self.default_locale_path
if not locale_dir:
locale_dir = NO_LOCALE_DIR
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):
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:
with, 'r', encoding='utf-8') as fp:
msgs =
if not self.invoked_for_django:
msgs = self.copy_plural_forms(msgs, locale)
msgs = msgs.replace(
"#. #-#-#-#-# %s.pot (PACKAGE VERSION) #-#-#-#-#\n" % self.domain, "")
with, 'w', encoding='utf-8') as fp:
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:
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')
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, 'r', encoding='utf-8') as fp:
m =
if m:
plural_form_line = force_str('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
line = '%s\n' % plural_form_line
found = True
msgs = '\n'.join(lines)
return msgs
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