Add script to sync localized strings.xml files with the master file

#!/bin/bash

SCRIPT=$(readlink -f $0)

SCRIPTPATH=`dirname $SCRIPT`

PROJECTROOT=`dirname $SCRIPTPATH`

cd $PROJECTROOT

find res/values-* -name "strings.xml" -type f ! -wholename "res/values-fr-rCA/strings.xml" -exec ./tools/sync_translation.py res/values/strings.xml {} \;

cd -

#!/usr/bin/env python

# Rewrite localized strings files to match the formatting of the master strings file in an Android project

#

# Written for use with K-9 Mail (https://github.com/k9mail/k-9)

# Licensed under the WTFPL (http://www.wtfpl.net/about/)

import sys

import re

from copy import deepcopy

from lxml import etree

INDENTATION = " " * 4

def new_tail(element):

    newline_count = element.tail.count("\n")

    if newline_count == 0:

        return element.tail

    else:

        return "%s%s" % ("\n" * newline_count, INDENTATION)

def remove_namespace_attribute(text):

    return re.sub(' xmlns:xliff="[^"]+"', "", text)

def fix_children_tail(element):

    for item in element.getchildren():

        if item.tail is not None and item.tail.count("\n") > 0:

            item.tail = "\n%s" % (INDENTATION * 2)

    element.getchildren()[-1].tail = "\n%s" % INDENTATION

if len(sys.argv) < 3:

    print "Usage: sync_translation.py <master> <translation>"

    print "Example: sync_translation.py res/values/strings.xml res/values-zh-rTW/strings.xml"

    exit(1)

master_file = sys.argv[1]

translation_file = sys.argv[2]

# Parse source files

parser = etree.XMLParser(strip_cdata=False)

master = etree.parse(master_file, parser=parser)

translation = etree.parse(translation_file, parser=parser)

# Create new XML object for the output

output = etree.Element("resources", nsmap={'xliff': "urn:oasis:names:tc:xliff:document:1.2"})

output.text = "\n%s" % INDENTATION

# Copy top level comments from translation

previous = output

elem = translation.getroot()

while elem.getprevious() is not None:

    elem = elem.getprevious()

    new_elem = deepcopy(elem)

    previous.addprevious(new_elem)

    previous = new_elem

for element in master.getroot().getchildren():

    if not isinstance(element.tag, basestring):

        # This is a comment; copy it to 'output'

        new_element = deepcopy(element)

        new_element.tail = new_tail(element)

        output.append(new_element)

    else:

        tag = element.tag

        name = element.get("name")

        if tag == "string":

            # Find string element in translation

            translated = translation.find('.//string[@name="%s"]' % name)

            if translated is None:

                # No translation found; copy original string and make it a comment

                temp_element = deepcopy(element)

                temp_element.tail = ""

                text = " NEW: %s" % etree.tostring(temp_element, encoding="UNICODE")

                text = remove_namespace_attribute(text)

                new_element = etree.Comment(text)

            else:

                # Translation found; use it

                new_element = deepcopy(translated)

            new_element.tail = new_tail(element)

            output.append(new_element)

        elif tag == "plurals":

            # Find plurals element in translation

            translated = translation.find('.//plurals[@name="%s"]' % name)

            if translated is None:

                # No translation found; copy original element and wrap it in a comment

                temp_element = deepcopy(element)

                temp_element.tail = ""

                fix_children_tail(temp_element)

                text = " NEW:\n%s%s\n%s" % (INDENTATION, etree.tostring(temp_element, encoding="UNICODE"), INDENTATION)

                text = remove_namespace_attribute(text)

                new_element = etree.Comment(text)

            else:

                # Translation found; use it

                new_element = deepcopy(translated)

                fix_children_tail(new_element)

            new_element.tail = new_tail(element)

            output.append(new_element)

        else:

            sys.stderr.write("Unknown element: %s\n" % tag)

output.getchildren()[-1].tail = "\n"

tree = etree.ElementTree(output)

tree.write(sys.argv[2], xml_declaration=True, encoding="UTF-8", pretty_print=True)