678 lines
26 KiB
Python
678 lines
26 KiB
Python
import glob
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import os
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import re
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import sys
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from functools import total_ordering
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from itertools import dropwhile
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from pathlib import Path
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import django
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from django.conf import settings
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from django.core.exceptions import ImproperlyConfigured
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from django.core.files.temp import NamedTemporaryFile
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from django.core.management.base import BaseCommand, CommandError
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from django.core.management.utils import (
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find_command, handle_extensions, is_ignored_path, popen_wrapper,
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)
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from django.utils.encoding import DEFAULT_LOCALE_ENCODING
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from django.utils.functional import cached_property
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from django.utils.jslex import prepare_js_for_gettext
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from django.utils.regex_helper import _lazy_re_compile
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from django.utils.text import get_text_list
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from django.utils.translation import templatize
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plural_forms_re = _lazy_re_compile(r'^(?P<value>"Plural-Forms.+?\\n")\s*$', re.MULTILINE | re.DOTALL)
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STATUS_OK = 0
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NO_LOCALE_DIR = object()
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def check_programs(*programs):
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for program in programs:
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if find_command(program) is None:
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raise CommandError(
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"Can't find %s. Make sure you have GNU gettext tools 0.15 or "
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"newer installed." % program
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)
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@total_ordering
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class TranslatableFile:
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def __init__(self, dirpath, file_name, locale_dir):
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self.file = file_name
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self.dirpath = dirpath
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self.locale_dir = locale_dir
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def __repr__(self):
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return "<%s: %s>" % (
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self.__class__.__name__,
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os.sep.join([self.dirpath, self.file]),
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)
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def __eq__(self, other):
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return self.path == other.path
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def __lt__(self, other):
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return self.path < other.path
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@property
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def path(self):
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return os.path.join(self.dirpath, self.file)
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class BuildFile:
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"""
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Represent the state of a translatable file during the build process.
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"""
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def __init__(self, command, domain, translatable):
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self.command = command
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self.domain = domain
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self.translatable = translatable
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@cached_property
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def is_templatized(self):
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if self.domain == 'djangojs':
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return self.command.gettext_version < (0, 18, 3)
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elif self.domain == 'django':
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file_ext = os.path.splitext(self.translatable.file)[1]
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return file_ext != '.py'
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return False
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@cached_property
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def path(self):
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return self.translatable.path
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@cached_property
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def work_path(self):
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"""
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Path to a file which is being fed into GNU gettext pipeline. This may
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be either a translatable or its preprocessed version.
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"""
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if not self.is_templatized:
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return self.path
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extension = {
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'djangojs': 'c',
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'django': 'py',
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}.get(self.domain)
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filename = '%s.%s' % (self.translatable.file, extension)
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return os.path.join(self.translatable.dirpath, filename)
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def preprocess(self):
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"""
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Preprocess (if necessary) a translatable file before passing it to
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xgettext GNU gettext utility.
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"""
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if not self.is_templatized:
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return
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with open(self.path, encoding='utf-8') as fp:
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src_data = fp.read()
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if self.domain == 'djangojs':
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content = prepare_js_for_gettext(src_data)
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elif self.domain == 'django':
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content = templatize(src_data, origin=self.path[2:])
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with open(self.work_path, 'w', encoding='utf-8') as fp:
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fp.write(content)
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def postprocess_messages(self, msgs):
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"""
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Postprocess messages generated by xgettext GNU gettext utility.
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Transform paths as if these messages were generated from original
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translatable files rather than from preprocessed versions.
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"""
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if not self.is_templatized:
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return msgs
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# Remove '.py' suffix
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if os.name == 'nt':
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# Preserve '.\' prefix on Windows to respect gettext behavior
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old_path = self.work_path
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new_path = self.path
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else:
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old_path = self.work_path[2:]
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new_path = self.path[2:]
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return re.sub(
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r'^(#: .*)(' + re.escape(old_path) + r')',
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lambda match: match[0].replace(old_path, new_path),
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msgs,
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flags=re.MULTILINE
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)
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def cleanup(self):
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"""
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Remove a preprocessed copy of a translatable file (if any).
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"""
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if self.is_templatized:
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# This check is needed for the case of a symlinked file and its
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# source being processed inside a single group (locale dir);
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# removing either of those two removes both.
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if os.path.exists(self.work_path):
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os.unlink(self.work_path)
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def normalize_eols(raw_contents):
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"""
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Take a block of raw text that will be passed through str.splitlines() to
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get universal newlines treatment.
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Return the resulting block of text with normalized `\n` EOL sequences ready
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to be written to disk using current platform's native EOLs.
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"""
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lines_list = raw_contents.splitlines()
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# Ensure last line has its EOL
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if lines_list and lines_list[-1]:
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lines_list.append('')
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return '\n'.join(lines_list)
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def write_pot_file(potfile, msgs):
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"""
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Write the `potfile` with the `msgs` contents, making sure its format is
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valid.
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"""
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pot_lines = msgs.splitlines()
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if os.path.exists(potfile):
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# Strip the header
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lines = dropwhile(len, pot_lines)
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else:
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lines = []
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found, header_read = False, False
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for line in pot_lines:
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if not found and not header_read:
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if 'charset=CHARSET' in line:
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found = True
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line = line.replace('charset=CHARSET', 'charset=UTF-8')
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if not line and not found:
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header_read = True
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lines.append(line)
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msgs = '\n'.join(lines)
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# Force newlines of POT files to '\n' to work around
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# https://savannah.gnu.org/bugs/index.php?52395
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with open(potfile, 'a', encoding='utf-8', newline='\n') as fp:
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fp.write(msgs)
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class Command(BaseCommand):
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help = (
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"Runs over the entire source tree of the current directory and "
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"pulls out all strings marked for translation. It creates (or updates) a message "
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"file in the conf/locale (in the django tree) or locale (for projects and "
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"applications) directory.\n\nYou must run this command with one of either the "
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"--locale, --exclude, or --all options."
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)
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translatable_file_class = TranslatableFile
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build_file_class = BuildFile
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requires_system_checks = []
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msgmerge_options = ['-q', '--backup=none', '--previous', '--update']
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msguniq_options = ['--to-code=utf-8']
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msgattrib_options = ['--no-obsolete']
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xgettext_options = ['--from-code=UTF-8', '--add-comments=Translators']
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def add_arguments(self, parser):
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parser.add_argument(
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'--locale', '-l', default=[], action='append',
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help='Creates or updates the message files for the given locale(s) (e.g. pt_BR). '
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'Can be used multiple times.',
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)
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parser.add_argument(
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'--exclude', '-x', default=[], action='append',
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help='Locales to exclude. Default is none. Can be used multiple times.',
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)
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parser.add_argument(
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'--domain', '-d', default='django',
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help='The domain of the message files (default: "django").',
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)
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parser.add_argument(
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'--all', '-a', action='store_true',
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help='Updates the message files for all existing locales.',
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)
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parser.add_argument(
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'--extension', '-e', dest='extensions', action='append',
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help='The file extension(s) to examine (default: "html,txt,py", or "js" '
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'if the domain is "djangojs"). Separate multiple extensions with '
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'commas, or use -e multiple times.',
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)
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parser.add_argument(
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'--symlinks', '-s', action='store_true',
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help='Follows symlinks to directories when examining source code '
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'and templates for translation strings.',
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)
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parser.add_argument(
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'--ignore', '-i', action='append', dest='ignore_patterns',
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default=[], metavar='PATTERN',
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help='Ignore files or directories matching this glob-style pattern. '
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'Use multiple times to ignore more.',
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)
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parser.add_argument(
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'--no-default-ignore', action='store_false', dest='use_default_ignore_patterns',
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help="Don't ignore the common glob-style patterns 'CVS', '.*', '*~' and '*.pyc'.",
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)
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parser.add_argument(
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'--no-wrap', action='store_true',
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help="Don't break long message lines into several lines.",
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)
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parser.add_argument(
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'--no-location', action='store_true',
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help="Don't write '#: filename:line' lines.",
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)
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parser.add_argument(
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'--add-location',
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choices=('full', 'file', 'never'), const='full', nargs='?',
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help=(
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"Controls '#: filename:line' lines. If the option is 'full' "
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"(the default if not given), the lines include both file name "
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"and line number. If it's 'file', the line number is omitted. If "
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"it's 'never', the lines are suppressed (same as --no-location). "
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"--add-location requires gettext 0.19 or newer."
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),
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)
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parser.add_argument(
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'--no-obsolete', action='store_true',
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help="Remove obsolete message strings.",
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)
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parser.add_argument(
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'--keep-pot', action='store_true',
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help="Keep .pot file after making messages. Useful when debugging.",
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)
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def handle(self, *args, **options):
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locale = options['locale']
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exclude = options['exclude']
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self.domain = options['domain']
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self.verbosity = options['verbosity']
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process_all = options['all']
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extensions = options['extensions']
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self.symlinks = options['symlinks']
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ignore_patterns = options['ignore_patterns']
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if options['use_default_ignore_patterns']:
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ignore_patterns += ['CVS', '.*', '*~', '*.pyc']
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self.ignore_patterns = list(set(ignore_patterns))
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# Avoid messing with mutable class variables
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if options['no_wrap']:
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self.msgmerge_options = self.msgmerge_options[:] + ['--no-wrap']
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self.msguniq_options = self.msguniq_options[:] + ['--no-wrap']
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self.msgattrib_options = self.msgattrib_options[:] + ['--no-wrap']
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self.xgettext_options = self.xgettext_options[:] + ['--no-wrap']
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if options['no_location']:
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self.msgmerge_options = self.msgmerge_options[:] + ['--no-location']
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self.msguniq_options = self.msguniq_options[:] + ['--no-location']
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self.msgattrib_options = self.msgattrib_options[:] + ['--no-location']
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self.xgettext_options = self.xgettext_options[:] + ['--no-location']
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if options['add_location']:
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if self.gettext_version < (0, 19):
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raise CommandError(
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"The --add-location option requires gettext 0.19 or later. "
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"You have %s." % '.'.join(str(x) for x in self.gettext_version)
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)
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arg_add_location = "--add-location=%s" % options['add_location']
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self.msgmerge_options = self.msgmerge_options[:] + [arg_add_location]
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self.msguniq_options = self.msguniq_options[:] + [arg_add_location]
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self.msgattrib_options = self.msgattrib_options[:] + [arg_add_location]
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self.xgettext_options = self.xgettext_options[:] + [arg_add_location]
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self.no_obsolete = options['no_obsolete']
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self.keep_pot = options['keep_pot']
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if self.domain not in ('django', 'djangojs'):
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raise CommandError("currently makemessages only supports domains "
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"'django' and 'djangojs'")
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if self.domain == 'djangojs':
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exts = extensions or ['js']
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else:
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exts = extensions or ['html', 'txt', 'py']
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self.extensions = handle_extensions(exts)
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if (not locale and not exclude and not process_all) or self.domain is None:
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raise CommandError(
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"Type '%s help %s' for usage information."
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% (os.path.basename(sys.argv[0]), sys.argv[1])
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)
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if self.verbosity > 1:
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self.stdout.write(
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'examining files with the extensions: %s'
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% get_text_list(list(self.extensions), 'and')
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)
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self.invoked_for_django = False
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self.locale_paths = []
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self.default_locale_path = None
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if os.path.isdir(os.path.join('conf', 'locale')):
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self.locale_paths = [os.path.abspath(os.path.join('conf', 'locale'))]
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self.default_locale_path = self.locale_paths[0]
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self.invoked_for_django = True
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else:
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if self.settings_available:
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self.locale_paths.extend(settings.LOCALE_PATHS)
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# Allow to run makemessages inside an app dir
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if os.path.isdir('locale'):
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self.locale_paths.append(os.path.abspath('locale'))
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if self.locale_paths:
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self.default_locale_path = self.locale_paths[0]
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os.makedirs(self.default_locale_path, exist_ok=True)
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# Build locale list
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looks_like_locale = re.compile(r'[a-z]{2}')
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locale_dirs = filter(os.path.isdir, glob.glob('%s/*' % self.default_locale_path))
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all_locales = [
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lang_code for lang_code in map(os.path.basename, locale_dirs)
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if looks_like_locale.match(lang_code)
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]
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# Account for excluded locales
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if process_all:
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locales = all_locales
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else:
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locales = locale or all_locales
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locales = set(locales).difference(exclude)
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if locales:
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check_programs('msguniq', 'msgmerge', 'msgattrib')
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check_programs('xgettext')
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try:
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potfiles = self.build_potfiles()
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# Build po files for each selected locale
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for locale in locales:
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if '-' in locale:
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self.stdout.write(
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'invalid locale %s, did you mean %s?' % (
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locale,
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locale.replace('-', '_'),
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),
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)
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continue
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if self.verbosity > 0:
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self.stdout.write('processing locale %s' % locale)
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for potfile in potfiles:
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self.write_po_file(potfile, locale)
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finally:
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if not self.keep_pot:
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self.remove_potfiles()
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@cached_property
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def gettext_version(self):
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# Gettext tools will output system-encoded bytestrings instead of UTF-8,
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# when looking up the version. It's especially a problem on Windows.
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out, err, status = popen_wrapper(
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['xgettext', '--version'],
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stdout_encoding=DEFAULT_LOCALE_ENCODING,
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)
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m = re.search(r'(\d+)\.(\d+)\.?(\d+)?', out)
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if m:
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return tuple(int(d) for d in m.groups() if d is not None)
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else:
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raise CommandError("Unable to get gettext version. Is it installed?")
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@cached_property
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def settings_available(self):
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try:
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settings.LOCALE_PATHS
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except ImproperlyConfigured:
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if self.verbosity > 1:
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self.stderr.write("Running without configured settings.")
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return False
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return True
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def build_potfiles(self):
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"""
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Build pot files and apply msguniq to them.
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"""
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file_list = self.find_files(".")
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self.remove_potfiles()
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self.process_files(file_list)
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potfiles = []
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for path in self.locale_paths:
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potfile = os.path.join(path, '%s.pot' % self.domain)
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if not os.path.exists(potfile):
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continue
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args = ['msguniq'] + self.msguniq_options + [potfile]
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msgs, errors, status = popen_wrapper(args)
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if errors:
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if status != STATUS_OK:
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raise CommandError(
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"errors happened while running msguniq\n%s" % errors)
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elif self.verbosity > 0:
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self.stdout.write(errors)
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msgs = normalize_eols(msgs)
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with open(potfile, 'w', encoding='utf-8') as fp:
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fp.write(msgs)
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potfiles.append(potfile)
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return potfiles
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def remove_potfiles(self):
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for path in self.locale_paths:
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pot_path = os.path.join(path, '%s.pot' % self.domain)
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if os.path.exists(pot_path):
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os.unlink(pot_path)
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def find_files(self, root):
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"""
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Get all files in the given root. Also check that there is a matching
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locale dir for each file.
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"""
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all_files = []
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ignored_roots = []
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if self.settings_available:
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ignored_roots = [os.path.normpath(p) for p in (settings.MEDIA_ROOT, settings.STATIC_ROOT) if p]
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for dirpath, dirnames, filenames in os.walk(root, topdown=True, followlinks=self.symlinks):
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for dirname in dirnames[:]:
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if (is_ignored_path(os.path.normpath(os.path.join(dirpath, dirname)), self.ignore_patterns) or
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os.path.join(os.path.abspath(dirpath), dirname) in ignored_roots):
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dirnames.remove(dirname)
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if self.verbosity > 1:
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self.stdout.write('ignoring directory %s' % dirname)
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elif dirname == 'locale':
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dirnames.remove(dirname)
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self.locale_paths.insert(0, os.path.join(os.path.abspath(dirpath), dirname))
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for filename in filenames:
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file_path = os.path.normpath(os.path.join(dirpath, filename))
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file_ext = os.path.splitext(filename)[1]
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if file_ext not in self.extensions or is_ignored_path(file_path, self.ignore_patterns):
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if self.verbosity > 1:
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self.stdout.write('ignoring file %s in %s' % (filename, dirpath))
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else:
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locale_dir = None
|
|
for path in self.locale_paths:
|
|
if os.path.abspath(dirpath).startswith(os.path.dirname(path)):
|
|
locale_dir = path
|
|
break
|
|
locale_dir = locale_dir or self.default_locale_path or NO_LOCALE_DIR
|
|
all_files.append(self.translatable_file_class(dirpath, filename, locale_dir))
|
|
return sorted(all_files)
|
|
|
|
def process_files(self, file_list):
|
|
"""
|
|
Group translatable files by locale directory and run pot file build
|
|
process for each group.
|
|
"""
|
|
file_groups = {}
|
|
for translatable in file_list:
|
|
file_group = file_groups.setdefault(translatable.locale_dir, [])
|
|
file_group.append(translatable)
|
|
for locale_dir, files in file_groups.items():
|
|
self.process_locale_dir(locale_dir, files)
|
|
|
|
def process_locale_dir(self, locale_dir, files):
|
|
"""
|
|
Extract translatable literals from the specified files, creating or
|
|
updating the POT file for a given locale directory.
|
|
|
|
Use the xgettext GNU gettext utility.
|
|
"""
|
|
build_files = []
|
|
for translatable in files:
|
|
if self.verbosity > 1:
|
|
self.stdout.write('processing file %s in %s' % (
|
|
translatable.file, translatable.dirpath
|
|
))
|
|
if self.domain not in ('djangojs', 'django'):
|
|
continue
|
|
build_file = self.build_file_class(self, self.domain, translatable)
|
|
try:
|
|
build_file.preprocess()
|
|
except UnicodeDecodeError as e:
|
|
self.stdout.write(
|
|
'UnicodeDecodeError: skipped file %s in %s (reason: %s)' % (
|
|
translatable.file, translatable.dirpath, e,
|
|
)
|
|
)
|
|
continue
|
|
except BaseException:
|
|
# Cleanup before exit.
|
|
for build_file in build_files:
|
|
build_file.cleanup()
|
|
raise
|
|
build_files.append(build_file)
|
|
|
|
if self.domain == 'djangojs':
|
|
is_templatized = build_file.is_templatized
|
|
args = [
|
|
'xgettext',
|
|
'-d', self.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=-',
|
|
]
|
|
elif self.domain == 'django':
|
|
args = [
|
|
'xgettext',
|
|
'-d', self.domain,
|
|
'--language=Python',
|
|
'--keyword=gettext_noop',
|
|
'--keyword=gettext_lazy',
|
|
'--keyword=ngettext_lazy:1,2',
|
|
'--keyword=pgettext:1c,2',
|
|
'--keyword=npgettext:1c,2,3',
|
|
'--keyword=pgettext_lazy:1c,2',
|
|
'--keyword=npgettext_lazy:1c,2,3',
|
|
'--output=-',
|
|
]
|
|
else:
|
|
return
|
|
|
|
input_files = [bf.work_path for bf in build_files]
|
|
with NamedTemporaryFile(mode='w+') as input_files_list:
|
|
input_files_list.write('\n'.join(input_files))
|
|
input_files_list.flush()
|
|
args.extend(['--files-from', input_files_list.name])
|
|
args.extend(self.xgettext_options)
|
|
msgs, errors, status = popen_wrapper(args)
|
|
|
|
if errors:
|
|
if status != STATUS_OK:
|
|
for build_file in build_files:
|
|
build_file.cleanup()
|
|
raise CommandError(
|
|
'errors happened while running xgettext on %s\n%s' %
|
|
('\n'.join(input_files), errors)
|
|
)
|
|
elif self.verbosity > 0:
|
|
# Print warnings
|
|
self.stdout.write(errors)
|
|
|
|
if msgs:
|
|
if locale_dir is NO_LOCALE_DIR:
|
|
for build_file in build_files:
|
|
build_file.cleanup()
|
|
file_path = os.path.normpath(build_files[0].path)
|
|
raise CommandError(
|
|
"Unable to find a locale path to store translations for "
|
|
"file %s. Make sure the 'locale' directory exists in an "
|
|
"app or LOCALE_PATHS setting is set." % file_path
|
|
)
|
|
for build_file in build_files:
|
|
msgs = build_file.postprocess_messages(msgs)
|
|
potfile = os.path.join(locale_dir, '%s.pot' % self.domain)
|
|
write_pot_file(potfile, msgs)
|
|
|
|
for build_file in build_files:
|
|
build_file.cleanup()
|
|
|
|
def write_po_file(self, potfile, locale):
|
|
"""
|
|
Create or update the PO file for self.domain and `locale`.
|
|
Use contents of the existing `potfile`.
|
|
|
|
Use msgmerge and msgattrib GNU gettext utilities.
|
|
"""
|
|
basedir = os.path.join(os.path.dirname(potfile), locale, 'LC_MESSAGES')
|
|
os.makedirs(basedir, exist_ok=True)
|
|
pofile = os.path.join(basedir, '%s.po' % self.domain)
|
|
|
|
if os.path.exists(pofile):
|
|
args = ['msgmerge'] + self.msgmerge_options + [pofile, potfile]
|
|
_, 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)
|
|
msgs = Path(pofile).read_text(encoding='utf-8')
|
|
else:
|
|
with open(potfile, encoding='utf-8') as fp:
|
|
msgs = fp.read()
|
|
if not self.invoked_for_django:
|
|
msgs = self.copy_plural_forms(msgs, locale)
|
|
msgs = normalize_eols(msgs)
|
|
msgs = msgs.replace(
|
|
"#. #-#-#-#-# %s.pot (PACKAGE VERSION) #-#-#-#-#\n" % self.domain, "")
|
|
with 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 = 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):
|
|
"""
|
|
Copy 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 open(django_po, encoding='utf-8') as fp:
|
|
m = plural_forms_re.search(fp.read())
|
|
if m:
|
|
plural_form_line = m['value']
|
|
if self.verbosity > 1:
|
|
self.stdout.write('copying plural forms: %s' % plural_form_line)
|
|
lines = []
|
|
found = False
|
|
for line in msgs.splitlines():
|
|
if not found and (not line or plural_forms_re.search(line)):
|
|
line = plural_form_line
|
|
found = True
|
|
lines.append(line)
|
|
msgs = '\n'.join(lines)
|
|
break
|
|
return msgs
|