trim.py

#!/opt/local/bin/python2.6

# This script fixes multiple spaces (that Git has a problem with) quickly.
# I know this sucks. It is a quick solution. 
# Please fork this, fix it, and email me at sam@samsoff.es

import string
import glob
import sys
import os
import re
import subprocess
 
arg=sys.argv[1]
exts=[".h", ".m", ".php", ".css", ".html", ".js", ".java", ".xml", ".json", ".py", ".rrc", ".rrh", ".jad", ".jdp", ".rapc", ".cso", ".csl", ".alx", "LICENSE", "README"]
 
def go():
	if os.path.isfile(arg):
		fix(arg)
	elif os.path.isdir(arg):
		os.path.walk(arg, visit, None)
	else:
		exit('arg is not file or folder')
	
def visit(arg, dirname, names):
	for fname in names:
		fname = os.path.join(dirname, fname)
		if not os.path.isfile(fname):
			continue
			
		#inefficient
		for ext in exts:
			if fname.endswith(ext):
				fix(fname)
				break
	
def fix(fname):
	print fname
	f=open(fname, "r")
	contents=""
	for line in f.readlines():
		line=re.sub("\n\s?\n","\n\n",line)
		line=re.sub("\s+$", endspace,line)
		#line=re.sub("(\s+)\t+","$1", line) # doesn't work
		contents+=line+"\n"
	f.close()
	f=open(fname, "w")
	f.write(contents)	
	f.close()
	# Fix line endings since Python jacks them up
	subprocess.call('tr "\r" "\n" < %s > %s.tmp;tr "\r\n" "\n" < %s > %s.tmp;mv %s.tmp %s;echo %s' % (fname, fname, fname, fname, fname, fname, fname), shell=True)

def endspace(str):
	return ""

go()