Add script to copy translations between files

So we can fill in missing translations from different dialects

Use it to fill in missing strings in pt from pt_BR

scripts/copy-i18n.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+
+import json
+import sys
+import os
+
+if len(sys.argv) < 3:
+    print "Usage: %s <source> <dest>" % (sys.argv[0],)
+    print "eg. %s pt_BR.json pt.json" % (sys.argv[0],)
+    print
+    print "Adds any translations to <dest> that exist in <source> but not <dest>"
+    sys.exit(1)
+
+srcpath = sys.argv[1]
+dstpath = sys.argv[2]
+tmppath = dstpath + ".tmp"
+
+with open(srcpath) as f:
+    src = json.load(f)
+
+with open(dstpath) as f:
+    dst = json.load(f)
+
+toAdd = {}
+for k,v in src.iteritems():
+    if k not in dst:
+        print "Adding %s" % (k,)
+        toAdd[k] = v
+
+# don't just json.dumps as we'll probably re-order all the keys (and they're
+# not in any given order so we can't just sort_keys). Append them to the end.
+with open(dstpath) as ifp:
+    with open(tmppath, 'w') as ofp:
+        for line in ifp:
+            strippedline = line.strip()
+            if strippedline in ('{', '}'):
+                ofp.write(line)
+            elif strippedline.endswith(','):
+                ofp.write(line)
+            else:
+                ofp.write('    '+strippedline)
+                ofp.write(",\n")
+                toAddStr = json.dumps(toAdd, indent=4, separators=(',', ': '), ensure_ascii=False, encoding="utf8")[1:-1]
+                ofp.write(toAddStr.encode('utf8'))
+
+os.rename(tmppath, dstpath)