1130 lines
41 KiB
Python
1130 lines
41 KiB
Python
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"""
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babel.messages.frontend
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~~~~~~~~~~~~~~~~~~~~~~~
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Frontends for the message extraction functionality.
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:copyright: (c) 2013-2023 by the Babel Team.
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:license: BSD, see LICENSE for more details.
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"""
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from __future__ import annotations
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import datetime
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import fnmatch
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import logging
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import optparse
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import os
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import re
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import shutil
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import sys
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import tempfile
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from collections import OrderedDict
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from configparser import RawConfigParser
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from io import StringIO
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from typing import Iterable
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from babel import Locale, localedata
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from babel import __version__ as VERSION
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from babel.core import UnknownLocaleError
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from babel.messages.catalog import DEFAULT_HEADER, Catalog
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from babel.messages.extract import (
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DEFAULT_KEYWORDS,
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DEFAULT_MAPPING,
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check_and_call_extract_file,
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extract_from_dir,
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)
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from babel.messages.mofile import write_mo
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from babel.messages.pofile import read_po, write_po
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from babel.util import LOCALTZ
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log = logging.getLogger('babel')
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class BaseError(Exception):
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pass
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class OptionError(BaseError):
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pass
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class SetupError(BaseError):
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pass
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def listify_value(arg, split=None):
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"""
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Make a list out of an argument.
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Values from `distutils` argument parsing are always single strings;
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values from `optparse` parsing may be lists of strings that may need
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to be further split.
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No matter the input, this function returns a flat list of whitespace-trimmed
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strings, with `None` values filtered out.
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>>> listify_value("foo bar")
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['foo', 'bar']
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>>> listify_value(["foo bar"])
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['foo', 'bar']
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>>> listify_value([["foo"], "bar"])
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['foo', 'bar']
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>>> listify_value([["foo"], ["bar", None, "foo"]])
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['foo', 'bar', 'foo']
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>>> listify_value("foo, bar, quux", ",")
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['foo', 'bar', 'quux']
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:param arg: A string or a list of strings
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:param split: The argument to pass to `str.split()`.
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:return:
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"""
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out = []
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if not isinstance(arg, (list, tuple)):
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arg = [arg]
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for val in arg:
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if val is None:
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continue
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if isinstance(val, (list, tuple)):
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out.extend(listify_value(val, split=split))
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continue
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out.extend(s.strip() for s in str(val).split(split))
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assert all(isinstance(val, str) for val in out)
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return out
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class CommandMixin:
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# This class is a small shim between Distutils commands and
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# optparse option parsing in the frontend command line.
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#: Option name to be input as `args` on the script command line.
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as_args = None
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#: Options which allow multiple values.
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#: This is used by the `optparse` transmogrification code.
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multiple_value_options = ()
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#: Options which are booleans.
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#: This is used by the `optparse` transmogrification code.
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# (This is actually used by distutils code too, but is never
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# declared in the base class.)
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boolean_options = ()
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#: Option aliases, to retain standalone command compatibility.
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#: Distutils does not support option aliases, but optparse does.
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#: This maps the distutils argument name to an iterable of aliases
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#: that are usable with optparse.
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option_aliases = {}
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#: Choices for options that needed to be restricted to specific
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#: list of choices.
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option_choices = {}
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#: Log object. To allow replacement in the script command line runner.
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log = log
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def __init__(self, dist=None):
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# A less strict version of distutils' `__init__`.
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self.distribution = dist
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self.initialize_options()
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self._dry_run = None
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self.verbose = False
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self.force = None
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self.help = 0
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self.finalized = 0
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def initialize_options(self):
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pass
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def ensure_finalized(self):
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if not self.finalized:
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self.finalize_options()
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self.finalized = 1
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def finalize_options(self):
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raise RuntimeError(
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f"abstract method -- subclass {self.__class__} must override",
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)
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class CompileCatalog(CommandMixin):
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description = 'compile message catalogs to binary MO files'
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user_options = [
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('domain=', 'D',
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"domains of PO files (space separated list, default 'messages')"),
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('directory=', 'd',
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'path to base directory containing the catalogs'),
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('input-file=', 'i',
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'name of the input file'),
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('output-file=', 'o',
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"name of the output file (default "
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"'<output_dir>/<locale>/LC_MESSAGES/<domain>.mo')"),
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('locale=', 'l',
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'locale of the catalog to compile'),
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('use-fuzzy', 'f',
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'also include fuzzy translations'),
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('statistics', None,
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'print statistics about translations'),
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]
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boolean_options = ['use-fuzzy', 'statistics']
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def initialize_options(self):
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self.domain = 'messages'
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self.directory = None
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self.input_file = None
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self.output_file = None
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self.locale = None
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self.use_fuzzy = False
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self.statistics = False
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def finalize_options(self):
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self.domain = listify_value(self.domain)
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if not self.input_file and not self.directory:
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raise OptionError('you must specify either the input file or the base directory')
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if not self.output_file and not self.directory:
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raise OptionError('you must specify either the output file or the base directory')
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def run(self):
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n_errors = 0
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for domain in self.domain:
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for errors in self._run_domain(domain).values():
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n_errors += len(errors)
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if n_errors:
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self.log.error('%d errors encountered.', n_errors)
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return (1 if n_errors else 0)
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def _run_domain(self, domain):
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po_files = []
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mo_files = []
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if not self.input_file:
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if self.locale:
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po_files.append((self.locale,
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os.path.join(self.directory, self.locale,
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'LC_MESSAGES',
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f"{domain}.po")))
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mo_files.append(os.path.join(self.directory, self.locale,
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'LC_MESSAGES',
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f"{domain}.mo"))
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else:
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for locale in os.listdir(self.directory):
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po_file = os.path.join(self.directory, locale,
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'LC_MESSAGES', f"{domain}.po")
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if os.path.exists(po_file):
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po_files.append((locale, po_file))
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mo_files.append(os.path.join(self.directory, locale,
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'LC_MESSAGES',
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f"{domain}.mo"))
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else:
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po_files.append((self.locale, self.input_file))
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if self.output_file:
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mo_files.append(self.output_file)
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else:
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mo_files.append(os.path.join(self.directory, self.locale,
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'LC_MESSAGES',
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f"{domain}.mo"))
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if not po_files:
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raise OptionError('no message catalogs found')
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catalogs_and_errors = {}
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for idx, (locale, po_file) in enumerate(po_files):
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mo_file = mo_files[idx]
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with open(po_file, 'rb') as infile:
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catalog = read_po(infile, locale)
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if self.statistics:
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translated = 0
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for message in list(catalog)[1:]:
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if message.string:
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translated += 1
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percentage = 0
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if len(catalog):
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percentage = translated * 100 // len(catalog)
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self.log.info(
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'%d of %d messages (%d%%) translated in %s',
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translated, len(catalog), percentage, po_file,
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)
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if catalog.fuzzy and not self.use_fuzzy:
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self.log.info('catalog %s is marked as fuzzy, skipping', po_file)
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continue
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catalogs_and_errors[catalog] = catalog_errors = list(catalog.check())
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for message, errors in catalog_errors:
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for error in errors:
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self.log.error(
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'error: %s:%d: %s', po_file, message.lineno, error,
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)
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self.log.info('compiling catalog %s to %s', po_file, mo_file)
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with open(mo_file, 'wb') as outfile:
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write_mo(outfile, catalog, use_fuzzy=self.use_fuzzy)
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return catalogs_and_errors
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def _make_directory_filter(ignore_patterns):
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"""
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Build a directory_filter function based on a list of ignore patterns.
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||
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"""
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def cli_directory_filter(dirname):
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basename = os.path.basename(dirname)
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return not any(
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fnmatch.fnmatch(basename, ignore_pattern)
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for ignore_pattern
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in ignore_patterns
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)
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return cli_directory_filter
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class ExtractMessages(CommandMixin):
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description = 'extract localizable strings from the project code'
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user_options = [
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('charset=', None,
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'charset to use in the output file (default "utf-8")'),
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||
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('keywords=', 'k',
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'space-separated list of keywords to look for in addition to the '
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'defaults (may be repeated multiple times)'),
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('no-default-keywords', None,
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'do not include the default keywords'),
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||
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('mapping-file=', 'F',
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'path to the mapping configuration file'),
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||
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('no-location', None,
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'do not include location comments with filename and line number'),
|
||
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('add-location=', None,
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||
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'location lines format. If it is not given or "full", it generates '
|
||
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'the lines with both file name and line number. If it is "file", '
|
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'the line number part is omitted. If it is "never", it completely '
|
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'suppresses the lines (same as --no-location).'),
|
||
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('omit-header', None,
|
||
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'do not include msgid "" entry in header'),
|
||
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('output-file=', 'o',
|
||
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'name of the output file'),
|
||
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('width=', 'w',
|
||
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'set output line width (default 76)'),
|
||
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('no-wrap', None,
|
||
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'do not break long message lines, longer than the output line width, '
|
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'into several lines'),
|
||
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('sort-output', None,
|
||
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'generate sorted output (default False)'),
|
||
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('sort-by-file', None,
|
||
|
|
'sort output by file location (default False)'),
|
||
|
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('msgid-bugs-address=', None,
|
||
|
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'set report address for msgid'),
|
||
|
|
('copyright-holder=', None,
|
||
|
|
'set copyright holder in output'),
|
||
|
|
('project=', None,
|
||
|
|
'set project name in output'),
|
||
|
|
('version=', None,
|
||
|
|
'set project version in output'),
|
||
|
|
('add-comments=', 'c',
|
||
|
|
'place comment block with TAG (or those preceding keyword lines) in '
|
||
|
|
'output file. Separate multiple TAGs with commas(,)'), # TODO: Support repetition of this argument
|
||
|
|
('strip-comments', 's',
|
||
|
|
'strip the comment TAGs from the comments.'),
|
||
|
|
('input-paths=', None,
|
||
|
|
'files or directories that should be scanned for messages. Separate multiple '
|
||
|
|
'files or directories with commas(,)'), # TODO: Support repetition of this argument
|
||
|
|
('input-dirs=', None, # TODO (3.x): Remove me.
|
||
|
|
'alias for input-paths (does allow files as well as directories).'),
|
||
|
|
('ignore-dirs=', None,
|
||
|
|
'Patterns for directories to ignore when scanning for messages. '
|
||
|
|
'Separate multiple patterns with spaces (default ".* ._")'),
|
||
|
|
('header-comment=', None,
|
||
|
|
'header comment for the catalog'),
|
||
|
|
('last-translator=', None,
|
||
|
|
'set the name and email of the last translator in output'),
|
||
|
|
]
|
||
|
|
boolean_options = [
|
||
|
|
'no-default-keywords', 'no-location', 'omit-header', 'no-wrap',
|
||
|
|
'sort-output', 'sort-by-file', 'strip-comments',
|
||
|
|
]
|
||
|
|
as_args = 'input-paths'
|
||
|
|
multiple_value_options = (
|
||
|
|
'add-comments',
|
||
|
|
'keywords',
|
||
|
|
'ignore-dirs',
|
||
|
|
)
|
||
|
|
option_aliases = {
|
||
|
|
'keywords': ('--keyword',),
|
||
|
|
'mapping-file': ('--mapping',),
|
||
|
|
'output-file': ('--output',),
|
||
|
|
'strip-comments': ('--strip-comment-tags',),
|
||
|
|
'last-translator': ('--last-translator',),
|
||
|
|
}
|
||
|
|
option_choices = {
|
||
|
|
'add-location': ('full', 'file', 'never'),
|
||
|
|
}
|
||
|
|
|
||
|
|
def initialize_options(self):
|
||
|
|
self.charset = 'utf-8'
|
||
|
|
self.keywords = None
|
||
|
|
self.no_default_keywords = False
|
||
|
|
self.mapping_file = None
|
||
|
|
self.no_location = False
|
||
|
|
self.add_location = None
|
||
|
|
self.omit_header = False
|
||
|
|
self.output_file = None
|
||
|
|
self.input_dirs = None
|
||
|
|
self.input_paths = None
|
||
|
|
self.width = None
|
||
|
|
self.no_wrap = False
|
||
|
|
self.sort_output = False
|
||
|
|
self.sort_by_file = False
|
||
|
|
self.msgid_bugs_address = None
|
||
|
|
self.copyright_holder = None
|
||
|
|
self.project = None
|
||
|
|
self.version = None
|
||
|
|
self.add_comments = None
|
||
|
|
self.strip_comments = False
|
||
|
|
self.include_lineno = True
|
||
|
|
self.ignore_dirs = None
|
||
|
|
self.header_comment = None
|
||
|
|
self.last_translator = None
|
||
|
|
|
||
|
|
def finalize_options(self):
|
||
|
|
if self.input_dirs:
|
||
|
|
if not self.input_paths:
|
||
|
|
self.input_paths = self.input_dirs
|
||
|
|
else:
|
||
|
|
raise OptionError(
|
||
|
|
'input-dirs and input-paths are mutually exclusive',
|
||
|
|
)
|
||
|
|
|
||
|
|
keywords = {} if self.no_default_keywords else DEFAULT_KEYWORDS.copy()
|
||
|
|
|
||
|
|
keywords.update(parse_keywords(listify_value(self.keywords)))
|
||
|
|
|
||
|
|
self.keywords = keywords
|
||
|
|
|
||
|
|
if not self.keywords:
|
||
|
|
raise OptionError(
|
||
|
|
'you must specify new keywords if you disable the default ones',
|
||
|
|
)
|
||
|
|
|
||
|
|
if not self.output_file:
|
||
|
|
raise OptionError('no output file specified')
|
||
|
|
if self.no_wrap and self.width:
|
||
|
|
raise OptionError(
|
||
|
|
"'--no-wrap' and '--width' are mutually exclusive",
|
||
|
|
)
|
||
|
|
if not self.no_wrap and not self.width:
|
||
|
|
self.width = 76
|
||
|
|
elif self.width is not None:
|
||
|
|
self.width = int(self.width)
|
||
|
|
|
||
|
|
if self.sort_output and self.sort_by_file:
|
||
|
|
raise OptionError(
|
||
|
|
"'--sort-output' and '--sort-by-file' are mutually exclusive",
|
||
|
|
)
|
||
|
|
|
||
|
|
if self.input_paths:
|
||
|
|
if isinstance(self.input_paths, str):
|
||
|
|
self.input_paths = re.split(r',\s*', self.input_paths)
|
||
|
|
elif self.distribution is not None:
|
||
|
|
self.input_paths = dict.fromkeys([
|
||
|
|
k.split('.', 1)[0]
|
||
|
|
for k in (self.distribution.packages or ())
|
||
|
|
]).keys()
|
||
|
|
else:
|
||
|
|
self.input_paths = []
|
||
|
|
|
||
|
|
if not self.input_paths:
|
||
|
|
raise OptionError("no input files or directories specified")
|
||
|
|
|
||
|
|
for path in self.input_paths:
|
||
|
|
if not os.path.exists(path):
|
||
|
|
raise OptionError(f"Input path: {path} does not exist")
|
||
|
|
|
||
|
|
self.add_comments = listify_value(self.add_comments or (), ",")
|
||
|
|
|
||
|
|
if self.distribution:
|
||
|
|
if not self.project:
|
||
|
|
self.project = self.distribution.get_name()
|
||
|
|
if not self.version:
|
||
|
|
self.version = self.distribution.get_version()
|
||
|
|
|
||
|
|
if self.add_location == 'never':
|
||
|
|
self.no_location = True
|
||
|
|
elif self.add_location == 'file':
|
||
|
|
self.include_lineno = False
|
||
|
|
|
||
|
|
ignore_dirs = listify_value(self.ignore_dirs)
|
||
|
|
if ignore_dirs:
|
||
|
|
self.directory_filter = _make_directory_filter(self.ignore_dirs)
|
||
|
|
else:
|
||
|
|
self.directory_filter = None
|
||
|
|
|
||
|
|
def _build_callback(self, path: str):
|
||
|
|
def callback(filename: str, method: str, options: dict):
|
||
|
|
if method == 'ignore':
|
||
|
|
return
|
||
|
|
|
||
|
|
# If we explicitly provide a full filepath, just use that.
|
||
|
|
# Otherwise, path will be the directory path and filename
|
||
|
|
# is the relative path from that dir to the file.
|
||
|
|
# So we can join those to get the full filepath.
|
||
|
|
if os.path.isfile(path):
|
||
|
|
filepath = path
|
||
|
|
else:
|
||
|
|
filepath = os.path.normpath(os.path.join(path, filename))
|
||
|
|
|
||
|
|
optstr = ''
|
||
|
|
if options:
|
||
|
|
opt_values = ", ".join(f'{k}="{v}"' for k, v in options.items())
|
||
|
|
optstr = f" ({opt_values})"
|
||
|
|
self.log.info('extracting messages from %s%s', filepath, optstr)
|
||
|
|
|
||
|
|
return callback
|
||
|
|
|
||
|
|
def run(self):
|
||
|
|
mappings = self._get_mappings()
|
||
|
|
with open(self.output_file, 'wb') as outfile:
|
||
|
|
catalog = Catalog(project=self.project,
|
||
|
|
version=self.version,
|
||
|
|
msgid_bugs_address=self.msgid_bugs_address,
|
||
|
|
copyright_holder=self.copyright_holder,
|
||
|
|
charset=self.charset,
|
||
|
|
header_comment=(self.header_comment or DEFAULT_HEADER),
|
||
|
|
last_translator=self.last_translator)
|
||
|
|
|
||
|
|
for path, method_map, options_map in mappings:
|
||
|
|
callback = self._build_callback(path)
|
||
|
|
if os.path.isfile(path):
|
||
|
|
current_dir = os.getcwd()
|
||
|
|
extracted = check_and_call_extract_file(
|
||
|
|
path, method_map, options_map,
|
||
|
|
callback, self.keywords, self.add_comments,
|
||
|
|
self.strip_comments, current_dir,
|
||
|
|
)
|
||
|
|
else:
|
||
|
|
extracted = extract_from_dir(
|
||
|
|
path, method_map, options_map,
|
||
|
|
keywords=self.keywords,
|
||
|
|
comment_tags=self.add_comments,
|
||
|
|
callback=callback,
|
||
|
|
strip_comment_tags=self.strip_comments,
|
||
|
|
directory_filter=self.directory_filter,
|
||
|
|
)
|
||
|
|
for filename, lineno, message, comments, context in extracted:
|
||
|
|
if os.path.isfile(path):
|
||
|
|
filepath = filename # already normalized
|
||
|
|
else:
|
||
|
|
filepath = os.path.normpath(os.path.join(path, filename))
|
||
|
|
|
||
|
|
catalog.add(message, None, [(filepath, lineno)],
|
||
|
|
auto_comments=comments, context=context)
|
||
|
|
|
||
|
|
self.log.info('writing PO template file to %s', self.output_file)
|
||
|
|
write_po(outfile, catalog, width=self.width,
|
||
|
|
no_location=self.no_location,
|
||
|
|
omit_header=self.omit_header,
|
||
|
|
sort_output=self.sort_output,
|
||
|
|
sort_by_file=self.sort_by_file,
|
||
|
|
include_lineno=self.include_lineno)
|
||
|
|
|
||
|
|
def _get_mappings(self):
|
||
|
|
mappings = []
|
||
|
|
|
||
|
|
if self.mapping_file:
|
||
|
|
with open(self.mapping_file) as fileobj:
|
||
|
|
method_map, options_map = parse_mapping(fileobj)
|
||
|
|
for path in self.input_paths:
|
||
|
|
mappings.append((path, method_map, options_map))
|
||
|
|
|
||
|
|
elif getattr(self.distribution, 'message_extractors', None):
|
||
|
|
message_extractors = self.distribution.message_extractors
|
||
|
|
for path, mapping in message_extractors.items():
|
||
|
|
if isinstance(mapping, str):
|
||
|
|
method_map, options_map = parse_mapping(StringIO(mapping))
|
||
|
|
else:
|
||
|
|
method_map, options_map = [], {}
|
||
|
|
for pattern, method, options in mapping:
|
||
|
|
method_map.append((pattern, method))
|
||
|
|
options_map[pattern] = options or {}
|
||
|
|
mappings.append((path, method_map, options_map))
|
||
|
|
|
||
|
|
else:
|
||
|
|
for path in self.input_paths:
|
||
|
|
mappings.append((path, DEFAULT_MAPPING, {}))
|
||
|
|
|
||
|
|
return mappings
|
||
|
|
|
||
|
|
|
||
|
|
class InitCatalog(CommandMixin):
|
||
|
|
description = 'create a new catalog based on a POT file'
|
||
|
|
user_options = [
|
||
|
|
('domain=', 'D',
|
||
|
|
"domain of PO file (default 'messages')"),
|
||
|
|
('input-file=', 'i',
|
||
|
|
'name of the input file'),
|
||
|
|
('output-dir=', 'd',
|
||
|
|
'path to output directory'),
|
||
|
|
('output-file=', 'o',
|
||
|
|
"name of the output file (default "
|
||
|
|
"'<output_dir>/<locale>/LC_MESSAGES/<domain>.po')"),
|
||
|
|
('locale=', 'l',
|
||
|
|
'locale for the new localized catalog'),
|
||
|
|
('width=', 'w',
|
||
|
|
'set output line width (default 76)'),
|
||
|
|
('no-wrap', None,
|
||
|
|
'do not break long message lines, longer than the output line width, '
|
||
|
|
'into several lines'),
|
||
|
|
]
|
||
|
|
boolean_options = ['no-wrap']
|
||
|
|
|
||
|
|
def initialize_options(self):
|
||
|
|
self.output_dir = None
|
||
|
|
self.output_file = None
|
||
|
|
self.input_file = None
|
||
|
|
self.locale = None
|
||
|
|
self.domain = 'messages'
|
||
|
|
self.no_wrap = False
|
||
|
|
self.width = None
|
||
|
|
|
||
|
|
def finalize_options(self):
|
||
|
|
if not self.input_file:
|
||
|
|
raise OptionError('you must specify the input file')
|
||
|
|
|
||
|
|
if not self.locale:
|
||
|
|
raise OptionError('you must provide a locale for the new catalog')
|
||
|
|
try:
|
||
|
|
self._locale = Locale.parse(self.locale)
|
||
|
|
except UnknownLocaleError as e:
|
||
|
|
raise OptionError(e) from e
|
||
|
|
|
||
|
|
if not self.output_file and not self.output_dir:
|
||
|
|
raise OptionError('you must specify the output directory')
|
||
|
|
if not self.output_file:
|
||
|
|
self.output_file = os.path.join(self.output_dir, self.locale,
|
||
|
|
'LC_MESSAGES', f"{self.domain}.po")
|
||
|
|
|
||
|
|
if not os.path.exists(os.path.dirname(self.output_file)):
|
||
|
|
os.makedirs(os.path.dirname(self.output_file))
|
||
|
|
if self.no_wrap and self.width:
|
||
|
|
raise OptionError("'--no-wrap' and '--width' are mutually exclusive")
|
||
|
|
if not self.no_wrap and not self.width:
|
||
|
|
self.width = 76
|
||
|
|
elif self.width is not None:
|
||
|
|
self.width = int(self.width)
|
||
|
|
|
||
|
|
def run(self):
|
||
|
|
self.log.info(
|
||
|
|
'creating catalog %s based on %s', self.output_file, self.input_file,
|
||
|
|
)
|
||
|
|
|
||
|
|
with open(self.input_file, 'rb') as infile:
|
||
|
|
# Although reading from the catalog template, read_po must be fed
|
||
|
|
# the locale in order to correctly calculate plurals
|
||
|
|
catalog = read_po(infile, locale=self.locale)
|
||
|
|
|
||
|
|
catalog.locale = self._locale
|
||
|
|
catalog.revision_date = datetime.datetime.now(LOCALTZ)
|
||
|
|
catalog.fuzzy = False
|
||
|
|
|
||
|
|
with open(self.output_file, 'wb') as outfile:
|
||
|
|
write_po(outfile, catalog, width=self.width)
|
||
|
|
|
||
|
|
|
||
|
|
class UpdateCatalog(CommandMixin):
|
||
|
|
description = 'update message catalogs from a POT file'
|
||
|
|
user_options = [
|
||
|
|
('domain=', 'D',
|
||
|
|
"domain of PO file (default 'messages')"),
|
||
|
|
('input-file=', 'i',
|
||
|
|
'name of the input file'),
|
||
|
|
('output-dir=', 'd',
|
||
|
|
'path to base directory containing the catalogs'),
|
||
|
|
('output-file=', 'o',
|
||
|
|
"name of the output file (default "
|
||
|
|
"'<output_dir>/<locale>/LC_MESSAGES/<domain>.po')"),
|
||
|
|
('omit-header', None,
|
||
|
|
"do not include msgid "" entry in header"),
|
||
|
|
('locale=', 'l',
|
||
|
|
'locale of the catalog to compile'),
|
||
|
|
('width=', 'w',
|
||
|
|
'set output line width (default 76)'),
|
||
|
|
('no-wrap', None,
|
||
|
|
'do not break long message lines, longer than the output line width, '
|
||
|
|
'into several lines'),
|
||
|
|
('ignore-obsolete=', None,
|
||
|
|
'whether to omit obsolete messages from the output'),
|
||
|
|
('init-missing=', None,
|
||
|
|
'if any output files are missing, initialize them first'),
|
||
|
|
('no-fuzzy-matching', 'N',
|
||
|
|
'do not use fuzzy matching'),
|
||
|
|
('update-header-comment', None,
|
||
|
|
'update target header comment'),
|
||
|
|
('previous', None,
|
||
|
|
'keep previous msgids of translated messages'),
|
||
|
|
('check=', None,
|
||
|
|
'don\'t update the catalog, just return the status. Return code 0 '
|
||
|
|
'means nothing would change. Return code 1 means that the catalog '
|
||
|
|
'would be updated'),
|
||
|
|
('ignore-pot-creation-date=', None,
|
||
|
|
'ignore changes to POT-Creation-Date when updating or checking'),
|
||
|
|
]
|
||
|
|
boolean_options = [
|
||
|
|
'omit-header', 'no-wrap', 'ignore-obsolete', 'init-missing',
|
||
|
|
'no-fuzzy-matching', 'previous', 'update-header-comment',
|
||
|
|
'check', 'ignore-pot-creation-date',
|
||
|
|
]
|
||
|
|
|
||
|
|
def initialize_options(self):
|
||
|
|
self.domain = 'messages'
|
||
|
|
self.input_file = None
|
||
|
|
self.output_dir = None
|
||
|
|
self.output_file = None
|
||
|
|
self.omit_header = False
|
||
|
|
self.locale = None
|
||
|
|
self.width = None
|
||
|
|
self.no_wrap = False
|
||
|
|
self.ignore_obsolete = False
|
||
|
|
self.init_missing = False
|
||
|
|
self.no_fuzzy_matching = False
|
||
|
|
self.update_header_comment = False
|
||
|
|
self.previous = False
|
||
|
|
self.check = False
|
||
|
|
self.ignore_pot_creation_date = False
|
||
|
|
|
||
|
|
def finalize_options(self):
|
||
|
|
if not self.input_file:
|
||
|
|
raise OptionError('you must specify the input file')
|
||
|
|
if not self.output_file and not self.output_dir:
|
||
|
|
raise OptionError('you must specify the output file or directory')
|
||
|
|
if self.output_file and not self.locale:
|
||
|
|
raise OptionError('you must specify the locale')
|
||
|
|
|
||
|
|
if self.init_missing:
|
||
|
|
if not self.locale:
|
||
|
|
raise OptionError(
|
||
|
|
'you must specify the locale for '
|
||
|
|
'the init-missing option to work',
|
||
|
|
)
|
||
|
|
|
||
|
|
try:
|
||
|
|
self._locale = Locale.parse(self.locale)
|
||
|
|
except UnknownLocaleError as e:
|
||
|
|
raise OptionError(e) from e
|
||
|
|
else:
|
||
|
|
self._locale = None
|
||
|
|
|
||
|
|
if self.no_wrap and self.width:
|
||
|
|
raise OptionError("'--no-wrap' and '--width' are mutually exclusive")
|
||
|
|
if not self.no_wrap and not self.width:
|
||
|
|
self.width = 76
|
||
|
|
elif self.width is not None:
|
||
|
|
self.width = int(self.width)
|
||
|
|
if self.no_fuzzy_matching and self.previous:
|
||
|
|
self.previous = False
|
||
|
|
|
||
|
|
def run(self):
|
||
|
|
check_status = {}
|
||
|
|
po_files = []
|
||
|
|
if not self.output_file:
|
||
|
|
if self.locale:
|
||
|
|
po_files.append((self.locale,
|
||
|
|
os.path.join(self.output_dir, self.locale,
|
||
|
|
'LC_MESSAGES',
|
||
|
|
f"{self.domain}.po")))
|
||
|
|
else:
|
||
|
|
for locale in os.listdir(self.output_dir):
|
||
|
|
po_file = os.path.join(self.output_dir, locale,
|
||
|
|
'LC_MESSAGES',
|
||
|
|
f"{self.domain}.po")
|
||
|
|
if os.path.exists(po_file):
|
||
|
|
po_files.append((locale, po_file))
|
||
|
|
else:
|
||
|
|
po_files.append((self.locale, self.output_file))
|
||
|
|
|
||
|
|
if not po_files:
|
||
|
|
raise OptionError('no message catalogs found')
|
||
|
|
|
||
|
|
domain = self.domain
|
||
|
|
if not domain:
|
||
|
|
domain = os.path.splitext(os.path.basename(self.input_file))[0]
|
||
|
|
|
||
|
|
with open(self.input_file, 'rb') as infile:
|
||
|
|
template = read_po(infile)
|
||
|
|
|
||
|
|
for locale, filename in po_files:
|
||
|
|
if self.init_missing and not os.path.exists(filename):
|
||
|
|
if self.check:
|
||
|
|
check_status[filename] = False
|
||
|
|
continue
|
||
|
|
self.log.info(
|
||
|
|
'creating catalog %s based on %s', filename, self.input_file,
|
||
|
|
)
|
||
|
|
|
||
|
|
with open(self.input_file, 'rb') as infile:
|
||
|
|
# Although reading from the catalog template, read_po must
|
||
|
|
# be fed the locale in order to correctly calculate plurals
|
||
|
|
catalog = read_po(infile, locale=self.locale)
|
||
|
|
|
||
|
|
catalog.locale = self._locale
|
||
|
|
catalog.revision_date = datetime.datetime.now(LOCALTZ)
|
||
|
|
catalog.fuzzy = False
|
||
|
|
|
||
|
|
with open(filename, 'wb') as outfile:
|
||
|
|
write_po(outfile, catalog)
|
||
|
|
|
||
|
|
self.log.info('updating catalog %s based on %s', filename, self.input_file)
|
||
|
|
with open(filename, 'rb') as infile:
|
||
|
|
catalog = read_po(infile, locale=locale, domain=domain)
|
||
|
|
|
||
|
|
catalog.update(
|
||
|
|
template, self.no_fuzzy_matching,
|
||
|
|
update_header_comment=self.update_header_comment,
|
||
|
|
update_creation_date=not self.ignore_pot_creation_date,
|
||
|
|
)
|
||
|
|
|
||
|
|
tmpname = os.path.join(os.path.dirname(filename),
|
||
|
|
tempfile.gettempprefix() +
|
||
|
|
os.path.basename(filename))
|
||
|
|
try:
|
||
|
|
with open(tmpname, 'wb') as tmpfile:
|
||
|
|
write_po(tmpfile, catalog,
|
||
|
|
omit_header=self.omit_header,
|
||
|
|
ignore_obsolete=self.ignore_obsolete,
|
||
|
|
include_previous=self.previous, width=self.width)
|
||
|
|
except Exception:
|
||
|
|
os.remove(tmpname)
|
||
|
|
raise
|
||
|
|
|
||
|
|
if self.check:
|
||
|
|
with open(filename, "rb") as origfile:
|
||
|
|
original_catalog = read_po(origfile)
|
||
|
|
with open(tmpname, "rb") as newfile:
|
||
|
|
updated_catalog = read_po(newfile)
|
||
|
|
updated_catalog.revision_date = original_catalog.revision_date
|
||
|
|
check_status[filename] = updated_catalog.is_identical(original_catalog)
|
||
|
|
os.remove(tmpname)
|
||
|
|
continue
|
||
|
|
|
||
|
|
try:
|
||
|
|
os.rename(tmpname, filename)
|
||
|
|
except OSError:
|
||
|
|
# We're probably on Windows, which doesn't support atomic
|
||
|
|
# renames, at least not through Python
|
||
|
|
# If the error is in fact due to a permissions problem, that
|
||
|
|
# same error is going to be raised from one of the following
|
||
|
|
# operations
|
||
|
|
os.remove(filename)
|
||
|
|
shutil.copy(tmpname, filename)
|
||
|
|
os.remove(tmpname)
|
||
|
|
|
||
|
|
if self.check:
|
||
|
|
for filename, up_to_date in check_status.items():
|
||
|
|
if up_to_date:
|
||
|
|
self.log.info('Catalog %s is up to date.', filename)
|
||
|
|
else:
|
||
|
|
self.log.warning('Catalog %s is out of date.', filename)
|
||
|
|
if not all(check_status.values()):
|
||
|
|
raise BaseError("Some catalogs are out of date.")
|
||
|
|
else:
|
||
|
|
self.log.info("All the catalogs are up-to-date.")
|
||
|
|
return
|
||
|
|
|
||
|
|
|
||
|
|
class CommandLineInterface:
|
||
|
|
"""Command-line interface.
|
||
|
|
|
||
|
|
This class provides a simple command-line interface to the message
|
||
|
|
extraction and PO file generation functionality.
|
||
|
|
"""
|
||
|
|
|
||
|
|
usage = '%%prog %s [options] %s'
|
||
|
|
version = f'%prog {VERSION}'
|
||
|
|
commands = {
|
||
|
|
'compile': 'compile message catalogs to MO files',
|
||
|
|
'extract': 'extract messages from source files and generate a POT file',
|
||
|
|
'init': 'create new message catalogs from a POT file',
|
||
|
|
'update': 'update existing message catalogs from a POT file',
|
||
|
|
}
|
||
|
|
|
||
|
|
command_classes = {
|
||
|
|
'compile': CompileCatalog,
|
||
|
|
'extract': ExtractMessages,
|
||
|
|
'init': InitCatalog,
|
||
|
|
'update': UpdateCatalog,
|
||
|
|
}
|
||
|
|
|
||
|
|
log = None # Replaced on instance level
|
||
|
|
|
||
|
|
def run(self, argv=None):
|
||
|
|
"""Main entry point of the command-line interface.
|
||
|
|
|
||
|
|
:param argv: list of arguments passed on the command-line
|
||
|
|
"""
|
||
|
|
|
||
|
|
if argv is None:
|
||
|
|
argv = sys.argv
|
||
|
|
|
||
|
|
self.parser = optparse.OptionParser(usage=self.usage % ('command', '[args]'),
|
||
|
|
version=self.version)
|
||
|
|
self.parser.disable_interspersed_args()
|
||
|
|
self.parser.print_help = self._help
|
||
|
|
self.parser.add_option('--list-locales', dest='list_locales',
|
||
|
|
action='store_true',
|
||
|
|
help="print all known locales and exit")
|
||
|
|
self.parser.add_option('-v', '--verbose', action='store_const',
|
||
|
|
dest='loglevel', const=logging.DEBUG,
|
||
|
|
help='print as much as possible')
|
||
|
|
self.parser.add_option('-q', '--quiet', action='store_const',
|
||
|
|
dest='loglevel', const=logging.ERROR,
|
||
|
|
help='print as little as possible')
|
||
|
|
self.parser.set_defaults(list_locales=False, loglevel=logging.INFO)
|
||
|
|
|
||
|
|
options, args = self.parser.parse_args(argv[1:])
|
||
|
|
|
||
|
|
self._configure_logging(options.loglevel)
|
||
|
|
if options.list_locales:
|
||
|
|
identifiers = localedata.locale_identifiers()
|
||
|
|
id_width = max(len(identifier) for identifier in identifiers) + 1
|
||
|
|
for identifier in sorted(identifiers):
|
||
|
|
locale = Locale.parse(identifier)
|
||
|
|
print(f"{identifier:<{id_width}} {locale.english_name}")
|
||
|
|
return 0
|
||
|
|
|
||
|
|
if not args:
|
||
|
|
self.parser.error('no valid command or option passed. '
|
||
|
|
'Try the -h/--help option for more information.')
|
||
|
|
|
||
|
|
cmdname = args[0]
|
||
|
|
if cmdname not in self.commands:
|
||
|
|
self.parser.error(f'unknown command "{cmdname}"')
|
||
|
|
|
||
|
|
cmdinst = self._configure_command(cmdname, args[1:])
|
||
|
|
return cmdinst.run()
|
||
|
|
|
||
|
|
def _configure_logging(self, loglevel):
|
||
|
|
self.log = log
|
||
|
|
self.log.setLevel(loglevel)
|
||
|
|
# Don't add a new handler for every instance initialization (#227), this
|
||
|
|
# would cause duplicated output when the CommandLineInterface as an
|
||
|
|
# normal Python class.
|
||
|
|
if self.log.handlers:
|
||
|
|
handler = self.log.handlers[0]
|
||
|
|
else:
|
||
|
|
handler = logging.StreamHandler()
|
||
|
|
self.log.addHandler(handler)
|
||
|
|
handler.setLevel(loglevel)
|
||
|
|
formatter = logging.Formatter('%(message)s')
|
||
|
|
handler.setFormatter(formatter)
|
||
|
|
|
||
|
|
def _help(self):
|
||
|
|
print(self.parser.format_help())
|
||
|
|
print("commands:")
|
||
|
|
cmd_width = max(8, max(len(command) for command in self.commands) + 1)
|
||
|
|
for name, description in sorted(self.commands.items()):
|
||
|
|
print(f" {name:<{cmd_width}} {description}")
|
||
|
|
|
||
|
|
def _configure_command(self, cmdname, argv):
|
||
|
|
"""
|
||
|
|
:type cmdname: str
|
||
|
|
:type argv: list[str]
|
||
|
|
"""
|
||
|
|
cmdclass = self.command_classes[cmdname]
|
||
|
|
cmdinst = cmdclass()
|
||
|
|
if self.log:
|
||
|
|
cmdinst.log = self.log # Use our logger, not distutils'.
|
||
|
|
assert isinstance(cmdinst, CommandMixin)
|
||
|
|
cmdinst.initialize_options()
|
||
|
|
|
||
|
|
parser = optparse.OptionParser(
|
||
|
|
usage=self.usage % (cmdname, ''),
|
||
|
|
description=self.commands[cmdname],
|
||
|
|
)
|
||
|
|
as_args = getattr(cmdclass, "as_args", ())
|
||
|
|
for long, short, help in cmdclass.user_options:
|
||
|
|
name = long.strip("=")
|
||
|
|
default = getattr(cmdinst, name.replace("-", "_"))
|
||
|
|
strs = [f"--{name}"]
|
||
|
|
if short:
|
||
|
|
strs.append(f"-{short}")
|
||
|
|
strs.extend(cmdclass.option_aliases.get(name, ()))
|
||
|
|
choices = cmdclass.option_choices.get(name, None)
|
||
|
|
if name == as_args:
|
||
|
|
parser.usage += f"<{name}>"
|
||
|
|
elif name in cmdclass.boolean_options:
|
||
|
|
parser.add_option(*strs, action="store_true", help=help)
|
||
|
|
elif name in cmdclass.multiple_value_options:
|
||
|
|
parser.add_option(*strs, action="append", help=help, choices=choices)
|
||
|
|
else:
|
||
|
|
parser.add_option(*strs, help=help, default=default, choices=choices)
|
||
|
|
options, args = parser.parse_args(argv)
|
||
|
|
|
||
|
|
if as_args:
|
||
|
|
setattr(options, as_args.replace('-', '_'), args)
|
||
|
|
|
||
|
|
for key, value in vars(options).items():
|
||
|
|
setattr(cmdinst, key, value)
|
||
|
|
|
||
|
|
try:
|
||
|
|
cmdinst.ensure_finalized()
|
||
|
|
except OptionError as err:
|
||
|
|
parser.error(str(err))
|
||
|
|
|
||
|
|
return cmdinst
|
||
|
|
|
||
|
|
|
||
|
|
def main():
|
||
|
|
return CommandLineInterface().run(sys.argv)
|
||
|
|
|
||
|
|
|
||
|
|
def parse_mapping(fileobj, filename=None):
|
||
|
|
"""Parse an extraction method mapping from a file-like object.
|
||
|
|
|
||
|
|
>>> buf = StringIO('''
|
||
|
|
... [extractors]
|
||
|
|
... custom = mypackage.module:myfunc
|
||
|
|
...
|
||
|
|
... # Python source files
|
||
|
|
... [python: **.py]
|
||
|
|
...
|
||
|
|
... # Genshi templates
|
||
|
|
... [genshi: **/templates/**.html]
|
||
|
|
... include_attrs =
|
||
|
|
... [genshi: **/templates/**.txt]
|
||
|
|
... template_class = genshi.template:TextTemplate
|
||
|
|
... encoding = latin-1
|
||
|
|
...
|
||
|
|
... # Some custom extractor
|
||
|
|
... [custom: **/custom/*.*]
|
||
|
|
... ''')
|
||
|
|
|
||
|
|
>>> method_map, options_map = parse_mapping(buf)
|
||
|
|
>>> len(method_map)
|
||
|
|
4
|
||
|
|
|
||
|
|
>>> method_map[0]
|
||
|
|
('**.py', 'python')
|
||
|
|
>>> options_map['**.py']
|
||
|
|
{}
|
||
|
|
>>> method_map[1]
|
||
|
|
('**/templates/**.html', 'genshi')
|
||
|
|
>>> options_map['**/templates/**.html']['include_attrs']
|
||
|
|
''
|
||
|
|
>>> method_map[2]
|
||
|
|
('**/templates/**.txt', 'genshi')
|
||
|
|
>>> options_map['**/templates/**.txt']['template_class']
|
||
|
|
'genshi.template:TextTemplate'
|
||
|
|
>>> options_map['**/templates/**.txt']['encoding']
|
||
|
|
'latin-1'
|
||
|
|
|
||
|
|
>>> method_map[3]
|
||
|
|
('**/custom/*.*', 'mypackage.module:myfunc')
|
||
|
|
>>> options_map['**/custom/*.*']
|
||
|
|
{}
|
||
|
|
|
||
|
|
:param fileobj: a readable file-like object containing the configuration
|
||
|
|
text to parse
|
||
|
|
:see: `extract_from_directory`
|
||
|
|
"""
|
||
|
|
extractors = {}
|
||
|
|
method_map = []
|
||
|
|
options_map = {}
|
||
|
|
|
||
|
|
parser = RawConfigParser()
|
||
|
|
parser._sections = OrderedDict(parser._sections) # We need ordered sections
|
||
|
|
parser.read_file(fileobj, filename)
|
||
|
|
|
||
|
|
for section in parser.sections():
|
||
|
|
if section == 'extractors':
|
||
|
|
extractors = dict(parser.items(section))
|
||
|
|
else:
|
||
|
|
method, pattern = (part.strip() for part in section.split(':', 1))
|
||
|
|
method_map.append((pattern, method))
|
||
|
|
options_map[pattern] = dict(parser.items(section))
|
||
|
|
|
||
|
|
if extractors:
|
||
|
|
for idx, (pattern, method) in enumerate(method_map):
|
||
|
|
if method in extractors:
|
||
|
|
method = extractors[method]
|
||
|
|
method_map[idx] = (pattern, method)
|
||
|
|
|
||
|
|
return method_map, options_map
|
||
|
|
|
||
|
|
|
||
|
|
def _parse_spec(s: str) -> tuple[int | None, tuple[int | tuple[int, str], ...]]:
|
||
|
|
inds = []
|
||
|
|
number = None
|
||
|
|
for x in s.split(','):
|
||
|
|
if x[-1] == 't':
|
||
|
|
number = int(x[:-1])
|
||
|
|
elif x[-1] == 'c':
|
||
|
|
inds.append((int(x[:-1]), 'c'))
|
||
|
|
else:
|
||
|
|
inds.append(int(x))
|
||
|
|
return number, tuple(inds)
|
||
|
|
|
||
|
|
|
||
|
|
def parse_keywords(strings: Iterable[str] = ()):
|
||
|
|
"""Parse keywords specifications from the given list of strings.
|
||
|
|
|
||
|
|
>>> import pprint
|
||
|
|
>>> keywords = ['_', 'dgettext:2', 'dngettext:2,3', 'pgettext:1c,2',
|
||
|
|
... 'polymorphic:1', 'polymorphic:2,2t', 'polymorphic:3c,3t']
|
||
|
|
>>> pprint.pprint(parse_keywords(keywords))
|
||
|
|
{'_': None,
|
||
|
|
'dgettext': (2,),
|
||
|
|
'dngettext': (2, 3),
|
||
|
|
'pgettext': ((1, 'c'), 2),
|
||
|
|
'polymorphic': {None: (1,), 2: (2,), 3: ((3, 'c'),)}}
|
||
|
|
|
||
|
|
The input keywords are in GNU Gettext style; see :doc:`cmdline` for details.
|
||
|
|
|
||
|
|
The output is a dictionary mapping keyword names to a dictionary of specifications.
|
||
|
|
Keys in this dictionary are numbers of arguments, where ``None`` means that all numbers
|
||
|
|
of arguments are matched, and a number means only calls with that number of arguments
|
||
|
|
are matched (which happens when using the "t" specifier). However, as a special
|
||
|
|
case for backwards compatibility, if the dictionary of specifications would
|
||
|
|
be ``{None: x}``, i.e., there is only one specification and it matches all argument
|
||
|
|
counts, then it is collapsed into just ``x``.
|
||
|
|
|
||
|
|
A specification is either a tuple or None. If a tuple, each element can be either a number
|
||
|
|
``n``, meaning that the nth argument should be extracted as a message, or the tuple
|
||
|
|
``(n, 'c')``, meaning that the nth argument should be extracted as context for the
|
||
|
|
messages. A ``None`` specification is equivalent to ``(1,)``, extracting the first
|
||
|
|
argument.
|
||
|
|
"""
|
||
|
|
keywords = {}
|
||
|
|
for string in strings:
|
||
|
|
if ':' in string:
|
||
|
|
funcname, spec_str = string.split(':')
|
||
|
|
number, spec = _parse_spec(spec_str)
|
||
|
|
else:
|
||
|
|
funcname = string
|
||
|
|
number = None
|
||
|
|
spec = None
|
||
|
|
keywords.setdefault(funcname, {})[number] = spec
|
||
|
|
|
||
|
|
# For best backwards compatibility, collapse {None: x} into x.
|
||
|
|
for k, v in keywords.items():
|
||
|
|
if set(v) == {None}:
|
||
|
|
keywords[k] = v[None]
|
||
|
|
|
||
|
|
return keywords
|
||
|
|
|
||
|
|
|
||
|
|
def __getattr__(name: str):
|
||
|
|
# Re-exports for backwards compatibility;
|
||
|
|
# `setuptools_frontend` is the canonical import location.
|
||
|
|
if name in {'check_message_extractors', 'compile_catalog', 'extract_messages', 'init_catalog', 'update_catalog'}:
|
||
|
|
from babel.messages import setuptools_frontend
|
||
|
|
|
||
|
|
return getattr(setuptools_frontend, name)
|
||
|
|
|
||
|
|
raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
main()
|