utils: rewrite resize-cover script with python for performance

utils/release.sh

@@ -49,7 +49,7 @@ fi;
 #echo "emacs batch indentation done !"
 ./utils/rules.py 
 ./utils/typo.sh ./songs/*/*.sg 
-./utils/resize-cover.sh 
+./utils/resize-cover.py 
 
 #build all songbooks
 rm -f *.d 

utils/resize-cover.py

@@ -0,0 +1,21 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+#Author: Romain Goffe
+#Date: 28/12/2011
+#Description: Resize all covers to 128,128 thumbnails
+
+import Image
+import glob
+
+width  = 128
+height = 128
+
+# Process song files
+covers = glob.glob('songs/*/*.jpg')
+for filename in covers:
+    source = Image.open(filename)
+    if source.size > (128, 128):
+        print "resizing : " + filename
+        target = source.resize((width, height), Image.ANTIALIAS)
+        target.save(filename)

utils/resize-cover.sh

@@ -1,17 +0,0 @@
-#!/bin/sh
-# Resize image if needed
-
-for image in songs/*/*.jpg songs/*/*.png ; 
-do
-    SIZE=`identify $image | awk '{ print $3}' | sed 's/x/ /'`;
-    XSIZE=`echo $SIZE | awk '{ print $1}'`;
-    YSIZE=`echo $SIZE | awk '{ print $2}'`;
-
-    if [ $((XSIZE)) -gt 128 ]
-    then
-	convert $image -resize 128x128 $image;
-    elif [ $((YSIZE)) -gt 128 ]
-    then
-	convert $image -resize 128x128 $image;
-    fi
-done;