Rename album cover to "folder.jpg"

folder.py

#!/usr/bin/python

"""
Small script to rename image in folder to 'folder.jpg' to comply with XBMC default filename for music album.
Usage :
	python folder.py /home/h3xstream/Music/
"""

import os
import sys


def processFolder(currentDir):

	#print currentDir
	try:
		files = os.listdir(currentDir)
	except:
		print "?? An error occurs while listing file in ", currentDir
		return
	
	jpegs=[]
	
	for file in files:
	
		
		isFile = True
		
		fullFile = os.path.join(currentDir, file)
		isFile = os.path.isfile(fullFile)
		
		if not(isFile): #recursive scan
			processFolder(fullFile)
			
		fileName, fileExtension = os.path.splitext(file)
		#print fileName, fileExtension
		if fileExtension in ['.jpg', '.jpeg'] :
			jpegs.append(file)
	
	#print jpegs
		
	if "folder.jpg" in jpegs :
		#print "OK"
		pass 
	elif len(jpegs) == 1 and not jpegs[0].endswith("folder.jpg"):
		#Renaming the filename
		
		for jpgFile in jpegs:
			srcFile = os.path.join(currentDir, jpgFile)
			destFile = os.path.join(currentDir,"folder.jpg")
			print "Renaming [", srcFile , "] to [", destFile, "]"
			try :
				os.rename(srcFile,destFile)
			except WindowsError:
				print "?? Unable to rename ", srcFile
	elif len(jpegs) > 1:
		#Ambiguous folder with multiple jpegs are skipped
		
		print "!! Many potential covers in ", currentDir
		pass
		

rootdir = sys.argv[1]
processFolder(rootdir)