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

tools/sync_all_translations.sh

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+#!/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 -

tools/sync_translation.py

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+#!/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)