Add verify locale keys usage script

scripts/verify-locale-keys-usage.py

@@ -0,0 +1,54 @@
+import json
+import os
+
+ROOT_PATH = os.path.dirname(os.path.dirname(__file__))
+DEFAULT_LOCALE_PATH = os.path.join(ROOT_PATH, "app/locales/taiga/locale-en.json")
+
+
+def keywords(key, value):
+    if key is not None and not isinstance(value, dict):
+        return [".".join(key)]
+
+    if key is not None and isinstance(value, dict):
+        kws = []
+        for item_key in value.keys():
+            kws += keywords(key+[item_key], value[item_key])
+        return kws
+
+    if key is None and isinstance(value, dict):
+        kws = []
+        for item_key in value.keys():
+            kws += keywords([item_key], value[item_key])
+        return kws
+
+
+def read_file(path):
+    with open(path) as fd:
+        return fd.read()
+
+
+def check_keyword(keyword, files_text):
+    for text in files_text:
+        if text.find(keyword) != -1:
+            return True
+    return False
+
+
+def verify_keywords_usage():
+    locales = json.load(open(DEFAULT_LOCALE_PATH))
+
+    all_files = []
+    for root, dirs, files in os.walk(os.path.join(ROOT_PATH, 'app')):
+        json_and_jade_files = list(filter(lambda x: x.endswith('.coffee') or x.endswith('.jade'), files))
+        json_and_jade_files = map(lambda x: os.path.join(root, x), json_and_jade_files)
+        all_files += json_and_jade_files
+
+    all_files_text = list(map(read_file, all_files))
+
+    for keyword in keywords(None, locales):
+        if not check_keyword(keyword, all_files_text):
+            print("Keyword unused: {}".format(keyword))
+
+
+if __name__ == "__main__":
+    verify_keywords_usage()