Rewrite reomve-unused-trans in python

This makes it no longer depend on lint, and also adds support for arrays

F-Droid/tools/remove-unused-trans.py

@@ -0,0 +1,57 @@
+#!/bin/env python2
+
+# Remove extra translations
+
+import glob
+import os
+import re
+from xml.etree import ElementTree
+
+strings = set()
+arrays = set()
+
+for e in ElementTree.parse(os.path.join('res', 'values', 'strings.xml')).getroot().findall('.//string'):
+    name = e.attrib['name']
+    strings.add(name)
+
+for e in ElementTree.parse(os.path.join('res', 'values', 'array.xml')).getroot().findall('.//string-array'):
+    name = e.attrib['name']
+    arrays.add(name)
+
+for d in glob.glob(os.path.join('res', 'values-*')):
+
+    str_path = os.path.join(d, 'strings.xml')
+    if os.path.exists(str_path):
+        tree = ElementTree.parse(str_path)
+        root = tree.getroot()
+
+        elems = root.findall('.//string')
+        for e in elems:
+            name = e.attrib['name']
+            if name not in strings:
+                root.remove(e)
+
+        result = re.sub(r' />', r'/>', ElementTree.tostring(root, encoding='utf-8'))
+
+        with open(str_path, 'w+') as f:
+            f.write('<?xml version="1.0" encoding="utf-8"?>\n')
+            f.write(result)
+            f.write('\n')
+
+    arr_path = os.path.join(d, 'array.xml')
+    if os.path.exists(arr_path):
+        tree = ElementTree.parse(arr_path)
+        root = tree.getroot()
+
+        elems = root.findall('.//string-array')
+        for e in elems:
+            name = e.attrib['name']
+            if name not in arrays:
+                root.remove(e)
+
+        result = re.sub(r' />', r'/>', ElementTree.tostring(root, encoding='utf-8'))
+
+        with open(arr_path, 'w+') as f:
+            f.write('<?xml version="1.0" encoding="utf-8"?>\n')
+            f.write(result)
+            f.write('\n')

F-Droid/tools/remove-unused-trans.sh

@@ -1,12 +0,0 @@
-#!/bin/bash -x
-
-# Remove extra translations
-
-sed -n 's@.*res/values-[^/]\+/\([^\.]\+\)\.xml:.*Error: "\([^"]*\)" is translated here but not found in default locale.*@\1 \2@p' < build/outputs/lint-results.txt | \
-while read file name; do
-	if [[ $file == strings ]]; then
-		sed -i "/name=\"$name\"/d" res/values-*/strings.xml
-	elif [[ $file == array ]]; then
-		sed -i "/<string-array name=\"$name\"/,/<\/string-array/d" res/values-*/array.xml
-	fi
-done