I haven't thought of a nice way to remove #, fuzzy from the files. I think process_babel_file might possibly become its own module, but on the other hand, having all methods in one script is quite nice for the mean time. I expect there to be bugs, although it works for the languages I've tried.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
setuptranslations.py
Generate and manipulate translation files for a flask app.
Assumes areas in jinja2 templates are marked with {% trans %}..{% endtrans %}
or gettext, _, or other gettext variants.
Related: flask, flask-babel, pybabel, jinja2, i18n, gobabslate
1. Run pybabel with extract option
pybabel extract -F babel.cfg -o messages.pot .
2. Run pybabel with init option for each language
pybabel init -i messages.pot -d translations -l fr
pybabel init -i messages.pot -d translations -l de
3. Pull translations from Google Translate API into babel files
4. Remove #fuzzy from message.po files.
5. Run pybabel with compile option
pybabel compile -d translations
"""
import sys
import codecs
from subprocess import Popen
from goslate import Goslate
pybabel_extract = ['pybabel', 'extract', '-F' 'babel.cfg',
'-o' 'messages.pot', '.']
pybabel_init_lang = ['pybabel', 'init', '-i', 'messages.pot',
'-d', 'translations', '-l']
pybabel_compile = ['pybabel', 'compile', '-d', 'translations']
def get_language_codes():
try:
from config import LANGUAGES, LANGUAGE_DEFAULT
return [lang for lang in LANGUAGES.keys() if lang != LANGUAGE_DEFAULT]
except:
return ['fr', 'de']
def return_code(args):
return Popen(args).communicate()[0]
def process_babel_file(lang, remove_fuzzy=False):
gs = Goslate()
filename = 'translations/' + lang + '/LC_MESSAGES/messages.po'
file_stream = codecs.open(filename, 'r', 'utf-8')
file_output = codecs.open(filename + '.tmp', 'w', 'utf-8')
finding_input, data = False, u''
for line in file_stream:
if finding_input is True and line == u'msgstr ""\n':
finding_input = False
new_text = gs.translate(data, lang).replace('"', '\\"')
file_output.write(u'msgstr "' + new_text + u'"\n')
continue
elif finding_input is True:
data += line.replace('\n', ' ').replace('\\n"', ' ').strip('"')\
.replace('\\"', '"')
elif line == u'msgid ""\n' or line[:7] == u'msgid "':
finding_input = True
data = u'' if line == u'msgid ""\n' else line[7:].strip()\
.strip('"').replace('\\"', '"')
elif line == '#, fuzzy\n' and remove_fuzzy:
continue
file_output.write(line)
file_stream.close()
file_output.close()
Popen(['cp', filename + '.tmp', filename]).communicate()
def main():
if return_code(pybabel_extract) is not None:
sys.exit('pybabel failed to extract translations')
for language_code in get_language_codes():
if return_code(pybabel_init_lang + [language_code]) is not None:
print('Failed to add language: %s', language_code)
continue
process_babel_file(language_code, remove_fuzzy=True)
if return_code(pybabel_compile) is not None:
sys.exit('pybabel was unable to compile translations')
if __name__ == '__main__':
main()
