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mumble-voip_mumble/scripts/generate-mumble_qt-qrc.py

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Auto-generate qrc file for embedded Qt translations when running qmake. This change removes our qmake-based Qt translation embedding. That system uses mumble_qt.qrc resource file with hardcoded filenames for Qt translations, and some logic implemented in qmake that copies Qt translations into the Mumble source tree such that the paths in the mumble_qt.qrc file match. The new system introduces a simple Python script that takes an output filename for the .qrc file the tool will write, along with a set of directories containing Qt translations. The tool will generate a Qt resource file containing references to all the translation files found in the specified directories. However, the tool takes care to only include language files once. In typical use, the first directory parameter passed to the tool is the QT_INSTALL_TRANSLATIONS directory, which is where Qt stores its own translation files. The second directory is Mumble's fallback directory. The tool then goes through all files in the first directory, and notes down which languages have been processed. Multiple files for a single langauge can be included from the a directory (qt_help_da.qm, and qtbase_da.qm), but once a language has been added from one directory, it will not be added if found in the next one in line. We use this to include a set of 'fallback' translations for versions of Qt that do not include them. This also allows this new style of Qt translation embedding to be forward compatible with newer versions of Qt that add new translations. Once Qt includes a translation that we have in our fallback directory, the Qt translation is used instead.
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#!/usr/bin/env python
#
# Copyright 2005-2020 The Mumble Developers. All rights reserved.
2016-05-08 17:57:21 +00:00
# Use of this source code is governed by a BSD-style license
# that can be found in the LICENSE file at the root of the
# Mumble source tree or at <https://www.mumble.info/LICENSE>.
Auto-generate qrc file for embedded Qt translations when running qmake. This change removes our qmake-based Qt translation embedding. That system uses mumble_qt.qrc resource file with hardcoded filenames for Qt translations, and some logic implemented in qmake that copies Qt translations into the Mumble source tree such that the paths in the mumble_qt.qrc file match. The new system introduces a simple Python script that takes an output filename for the .qrc file the tool will write, along with a set of directories containing Qt translations. The tool will generate a Qt resource file containing references to all the translation files found in the specified directories. However, the tool takes care to only include language files once. In typical use, the first directory parameter passed to the tool is the QT_INSTALL_TRANSLATIONS directory, which is where Qt stores its own translation files. The second directory is Mumble's fallback directory. The tool then goes through all files in the first directory, and notes down which languages have been processed. Multiple files for a single langauge can be included from the a directory (qt_help_da.qm, and qtbase_da.qm), but once a language has been added from one directory, it will not be added if found in the next one in line. We use this to include a set of 'fallback' translations for versions of Qt that do not include them. This also allows this new style of Qt translation embedding to be forward compatible with newer versions of Qt that add new translations. Once Qt includes a translation that we have in our fallback directory, the Qt translation is used instead.
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from __future__ import (unicode_literals, print_function, division)
import os
import platform
import sys
allowed_prefixes = ('qt', 'qtbase')
def dirToQrc(of, dirName, alreadyProcessedLangs):
processedLangs = []
absDirName = os.path.abspath(dirName)
fns = os.listdir(dirName)
for fn in fns:
fnRoot, fnExt = os.path.splitext(fn)
if fnExt.lower() != '.qm':
continue
lastUnderscoreIdx = fnRoot.rfind('_')
if lastUnderscoreIdx == -1:
continue
prefix = fnRoot[:lastUnderscoreIdx]
lang = fnRoot[lastUnderscoreIdx+1:]
# Handle en_US-style locale names
if lang.upper() == lang:
nextToLastUnderscoreIdx = prefix.rfind('_')
prefix = fnRoot[:nextToLastUnderscoreIdx]
lang = fnRoot[nextToLastUnderscoreIdx+1:]
if lang in alreadyProcessedLangs:
continue
if not prefix in allowed_prefixes:
continue
absFn = os.path.join(absDirName, fn)
if platform.system() == 'Windows':
absFn = absFn.replace('\\', '/')
of.write(' <file alias="{0}">{1}</file>\n'.format(fn, absFn))
processedLangs.append(lang)
return processedLangs
def main():
# python generate-mumble_qt-qrc.py <output-fn> [inputs...]
output = sys.argv[1]
inputs = sys.argv[2:]
of = open(output, 'w')
of.write('<!DOCTYPE RCC><RCC version="1.0">\n')
of.write('<qresource>\n')
processedLangs = []
for dirName in inputs:
newlyProcssedLangs = dirToQrc(of, dirName, processedLangs)
processedLangs.extend(newlyProcssedLangs)
of.write('</qresource>\n')
of.write('</RCC>\n')
of.close()
if __name__ == '__main__':
main()