mirror of
https://github.com/bitcoin/bitcoin.git
synced 2024-11-20 02:25:40 +01:00
216 lines
8.2 KiB
Python
Executable File
216 lines
8.2 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2014 Wladimir J. van der Laan
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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'''
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Run this script from the root of the repository to update all translations from
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transifex.
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It will do the following automatically:
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- fetch all translations using the tx tool
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- post-process them into valid and committable format
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- remove invalid control characters
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- remove location tags (makes diffs less noisy)
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TODO:
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- auto-add new translations to the build system according to the translation process
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'''
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import subprocess
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import re
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import sys
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import os
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import io
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import xml.etree.ElementTree as ET
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# Name of transifex tool
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TX = 'tx'
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# Name of source language file
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SOURCE_LANG = 'bitcoin_en.ts'
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# Directory with locale files
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LOCALE_DIR = 'src/qt/locale'
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# Minimum number of messages for translation to be considered at all
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MIN_NUM_MESSAGES = 10
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# Regexp to check for Bitcoin addresses
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ADDRESS_REGEXP = re.compile('([13]|bc1)[a-zA-Z0-9]{30,}')
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def check_at_repository_root():
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if not os.path.exists('.git'):
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print('No .git directory found')
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print('Execute this script at the root of the repository', file=sys.stderr)
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sys.exit(1)
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def fetch_all_translations():
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if subprocess.call([TX, 'pull', '-f', '-a']):
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print('Error while fetching translations', file=sys.stderr)
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sys.exit(1)
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def find_format_specifiers(s):
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'''Find all format specifiers in a string.'''
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pos = 0
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specifiers = []
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while True:
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percent = s.find('%', pos)
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if percent < 0:
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break
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specifiers.append(s[percent+1])
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pos = percent+2
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return specifiers
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def split_format_specifiers(specifiers):
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'''Split format specifiers between numeric (Qt) and others (strprintf)'''
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numeric = []
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other = []
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for s in specifiers:
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if s in {'1','2','3','4','5','6','7','8','9'}:
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numeric.append(s)
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else:
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other.append(s)
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# If both numeric format specifiers and "others" are used, assume we're dealing
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# with a Qt-formatted message. In the case of Qt formatting (see https://doc.qt.io/qt-5/qstring.html#arg)
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# only numeric formats are replaced at all. This means "(percentage: %1%)" is valid, without needing
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# any kind of escaping that would be necessary for strprintf. Without this, this function
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# would wrongly detect '%)' as a printf format specifier.
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if numeric:
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other = []
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# numeric (Qt) can be present in any order, others (strprintf) must be in specified order
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return set(numeric),other
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def sanitize_string(s):
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'''Sanitize string for printing'''
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return s.replace('\n',' ')
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def check_format_specifiers(source, translation, errors, numerus):
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source_f = split_format_specifiers(find_format_specifiers(source))
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# assert that no source messages contain both Qt and strprintf format specifiers
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# if this fails, go change the source as this is hacky and confusing!
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assert(not(source_f[0] and source_f[1]))
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try:
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translation_f = split_format_specifiers(find_format_specifiers(translation))
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except IndexError:
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errors.append("Parse error in translation for '%s': '%s'" % (sanitize_string(source), sanitize_string(translation)))
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return False
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else:
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if source_f != translation_f:
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if numerus and source_f == (set(), ['n']) and translation_f == (set(), []) and translation.find('%') == -1:
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# Allow numerus translations to omit %n specifier (usually when it only has one possible value)
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return True
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errors.append("Mismatch between '%s' and '%s'" % (sanitize_string(source), sanitize_string(translation)))
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return False
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return True
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def all_ts_files(suffix=''):
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for filename in os.listdir(LOCALE_DIR):
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# process only language files, and do not process source language
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if not filename.endswith('.ts'+suffix) or filename == SOURCE_LANG+suffix:
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continue
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if suffix: # remove provided suffix
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filename = filename[0:-len(suffix)]
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filepath = os.path.join(LOCALE_DIR, filename)
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yield(filename, filepath)
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FIX_RE = re.compile(b'[\x00-\x09\x0b\x0c\x0e-\x1f]')
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def remove_invalid_characters(s):
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'''Remove invalid characters from translation string'''
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return FIX_RE.sub(b'', s)
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# Override cdata escape function to make our output match Qt's (optional, just for cleaner diffs for
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# comparison, disable by default)
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_orig_escape_cdata = None
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def escape_cdata(text):
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text = _orig_escape_cdata(text)
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text = text.replace("'", ''')
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text = text.replace('"', '"')
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return text
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def contains_bitcoin_addr(text, errors):
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if text is not None and ADDRESS_REGEXP.search(text) is not None:
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errors.append('Translation "%s" contains a bitcoin address. This will be removed.' % (text))
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return True
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return False
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def postprocess_translations(reduce_diff_hacks=False):
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print('Checking and postprocessing...')
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if reduce_diff_hacks:
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global _orig_escape_cdata
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_orig_escape_cdata = ET._escape_cdata
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ET._escape_cdata = escape_cdata
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for (filename,filepath) in all_ts_files():
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os.rename(filepath, filepath+'.orig')
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have_errors = False
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for (filename,filepath) in all_ts_files('.orig'):
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# pre-fixups to cope with transifex output
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parser = ET.XMLParser(encoding='utf-8') # need to override encoding because 'utf8' is not understood only 'utf-8'
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with open(filepath + '.orig', 'rb') as f:
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data = f.read()
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# remove control characters; this must be done over the entire file otherwise the XML parser will fail
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data = remove_invalid_characters(data)
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tree = ET.parse(io.BytesIO(data), parser=parser)
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# iterate over all messages in file
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root = tree.getroot()
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for context in root.findall('context'):
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for message in context.findall('message'):
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numerus = message.get('numerus') == 'yes'
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source = message.find('source').text
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translation_node = message.find('translation')
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# pick all numerusforms
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if numerus:
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translations = [i.text for i in translation_node.findall('numerusform')]
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else:
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translations = [translation_node.text]
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for translation in translations:
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if translation is None:
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continue
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errors = []
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valid = check_format_specifiers(source, translation, errors, numerus) and not contains_bitcoin_addr(translation, errors)
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for error in errors:
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print('%s: %s' % (filename, error))
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if not valid: # set type to unfinished and clear string if invalid
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translation_node.clear()
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translation_node.set('type', 'unfinished')
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have_errors = True
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# Remove location tags
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for location in message.findall('location'):
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message.remove(location)
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# Remove entire message if it is an unfinished translation
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if translation_node.get('type') == 'unfinished':
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context.remove(message)
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# check if document is (virtually) empty, and remove it if so
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num_messages = 0
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for context in root.findall('context'):
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for message in context.findall('message'):
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num_messages += 1
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if num_messages < MIN_NUM_MESSAGES:
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print('Removing %s, as it contains only %i messages' % (filepath, num_messages))
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continue
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# write fixed-up tree
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# if diff reduction requested, replace some XML to 'sanitize' to qt formatting
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if reduce_diff_hacks:
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out = io.BytesIO()
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tree.write(out, encoding='utf-8')
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out = out.getvalue()
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out = out.replace(b' />', b'/>')
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with open(filepath, 'wb') as f:
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f.write(out)
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else:
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tree.write(filepath, encoding='utf-8')
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return have_errors
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if __name__ == '__main__':
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check_at_repository_root()
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fetch_all_translations()
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postprocess_translations()
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