#!/usr/bin/python
'remote diff'
import sys, os, hashlib
DEBUGGING = False
def rdiff(source, dest):
 sourcefiles, destfiles = listfiles(source), listfiles(dest)
 #print sourcefiles, destfiles
 reference = dict(destfiles).keys()
 for item in sourcefiles:
  if not item in destfiles:
   if item[0] in reference:
    print 'differs: %s' % item[0]
   else:
    print 'not in %s: %s' % (dest, item[0])
 reference = dict(sourcefiles).keys()
 for item in destfiles:
  if item[0] not in reference:
   print 'not in %s: %s' % (source, item[0])
def listfiles(location):
 if ':' in location:
  host, directory = location.split(':')
  remote = os.popen('ssh %s bin/listfiles %s' % (host, directory))
  listing = remote.read()
  debug('listing: %s' % repr(listing))
  listing = eval(listing)
 else:
  os.chdir(location)
  listing = []
  os.path.walk('.', listdir, listing)
 return sorted(listing)
def listdir(listing, dirname, fnames):
 if '.bzr' in fnames:
  fnames.remove('.bzr')
 for fname in fnames:
  listing.append([os.path.join(dirname, fname)])
  listing[-1].append(sha1sum(listing[-1][0]))
  if False:  # skip stat for now
   listing[-1].append(os.lstat(listing[-1][0]))
def sha1sum(filename):
 if os.path.isfile(filename):
  with open(filename) as input:
   sha1sum = hashlib.sha1(input.read())
  return sha1sum.digest().encode('hex')
 else:
  return '0'
def debug(message):
 if DEBUGGING:
  print >>sys.stderr, message
if __name__ == '__main__':
 command = os.path.splitext(os.path.basename(sys.argv[0]))[0]
 if command in globals() and callable(eval(command)):
  print eval(command)(*sys.argv[1:]) or ''
 else:
  print >>sys.stderr, 'No such function %s' % command