Add script to update locale files

locale_build/update_locales.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+
+# Author: Sotiris Papadopoulos <ytubedlg@gmail.com>
+# Last-Updated: 2015-07-02
+# Script to update all locale files and rebuild the mo files.
+
+# Usage: ./update_locales.sh
+
+
+cd ../youtube_dl_gui/
+
+echo "[*]Creating new .PO file"
+pygettext.py -v -o new.po *.py
+
+#vim new.po
+
+version=$(grep version version.py | cut -d"'" -f2)
+dirs=$(find locale -mindepth 2 -maxdepth 2)
+
+echo "[*]Updating old .PO files"
+
+for dir in $dirs; do
+    msgmerge --update --no-wrap -v "$dir/youtube_dl_gui.po" new.po
+
+    # Strip empty headers
+    sed -i '/: \\n/d' "$dir/youtube_dl_gui.po"
+
+    # Upate version
+    sed -i "s/Project-Id-Version:.*\\\n/Project-Id-Version: youtube-dlg $version\\\n/g" "$dir/youtube_dl_gui.po"
+done
+
+echo ""
+read -p "Open files for revision?(y/n) " ch
+
+if [ $ch = 'y' ]; then
+    for dir in $dirs; do
+        vim "$dir/youtube_dl_gui.po"
+    done
+fi
+
+echo "[*]Building .MO files"
+
+for dir in $dirs; do
+    msgfmt --output-file "$dir/youtube_dl_gui.mo" "$dir/youtube_dl_gui.po"
+done
+
+echo "[*]Done"
+