Add script to fix problematic linebreak/whitespace combinations in strings.xml

tools/fix_all_strings.sh

@@ -0,0 +1,11 @@
+#!/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/fix_strings.py {} \;
+
+cd -

tools/fix_strings.py

@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+# Rewrite a strings file to get rid of line break/whitespace combinations that get stripped when building with Gradle.
+#
+# Example:
+#   <string name="account_size_changed">
+#   Account \"<xliff:g id="account">%s</xliff:g>\" shrunk from
+#   <xliff:g id="oldSize">%s</xliff:g>
+#   to
+#   <xliff:g id="newSize">%s</xliff:g>
+#   </string>
+#
+# will be rendered as
+#
+#   Account "account" shrunk from10MB to1MB
+#
+# when built with Gradle, but displays fine when built with Ant.
+#
+#
+# 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 lxml import etree
+
+
+def fix_text(element):
+    if element.text is not None:
+        element.text = re.sub(r'^\n\s*([^\s])', "\\1", element.text)
+        element.text = re.sub(r'\n\s*$', " ", element.text)
+
+
+def fix_tail(element, is_last):
+    if element.tail is not None:
+        if is_last:
+            replacement = ""
+        else:
+            replacement = " "
+        element.tail = re.sub(r'^\n\s*([^\s])', " \\1", element.tail)
+        element.tail = re.sub(r'\n\s*$', replacement, element.tail)
+
+
+def cleanup_string_elements(elements):
+    for element in elements:
+        if element.tag is None:
+            continue
+
+        tag = element.tag
+        children = element.getchildren()
+
+        if tag in ["string", "item"]:
+            if len(children) > 0:
+                fix_text(element)
+
+                for child in children:
+                    if isinstance(child.tag, basestring):
+                        fix_text(child)
+                        fix_tail(child, child == children[-1])
+
+        elif tag == "plurals":
+            cleanup_string_elements(children)
+
+
+if len(sys.argv) < 2:
+    print "Usage: fix_strings.py <strings file>"
+    print "Example: fix_strings.py res/values/strings.xml"
+    exit(1)
+
+strings_file = sys.argv[1]
+
+parser = etree.XMLParser(strip_cdata=False)
+strings = etree.parse(strings_file, parser=parser)
+
+cleanup_string_elements(strings.getroot().getchildren())
+
+strings.write(strings_file, xml_declaration=True, encoding="UTF-8", pretty_print=True)