Add script to generate icons to needed resolutions

Tools/generate_icons.sh

@@ -0,0 +1,57 @@
+#!/bin/sh -x
+
+# tag_missing_resources.sh
+#
+# Copyright (C) 2012  Belledonne Comunications, Grenoble, France
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software
+#  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+# Created by Gautier Pelloux-Prayer on 2014/10/22.
+# Given a new icon, this script will generate all needed icons for the application
+# and replace them in Ressources/.
+
+if [ $# != 1 ]; then
+	echo "Usage: $0 logo.png"
+	exit 0
+elif [ ! -f $1 ]; then
+	echo "Icon $1 does not exist"
+	exit 1
+fi
+
+icon_prefix="linphone_icon"
+
+# quit on first error
+set -e
+
+logo=$1
+logo_size=$(identify $logo | cut -d' ' -f3)
+logo_sizex=$(echo $logo_size | cut -d x -f1)
+logo_sizey=$(echo $logo_size | cut -d x -f2)
+
+if [ "$logo_sizex" != "$logo_sizey" ] || [ $logo_sizex -lt 512 ]; then
+	echo "Provide a high SQUARED resolution image (512x512 or higher). Current is $logo_size"
+	exit 1
+fi
+
+resources=$(dirname $0)/../Resources/
+
+for file in $(find $resources -name "$icon_prefix*.png"); do
+	dimension=$(identify $file | cut -d' ' -f3 | cut -d x -f1)
+	convert $logo -resize ${dimension}x${dimension} $resources/$(basename $file)
+done
+
+echo "**********************
+Done.
+**********************"