Automatically scp over files in a directory to the target machine whenever they are changed on the host machine.

scpsync.py

#!/usr/bin/python
import os, time, sys, datetime

if len(sys.argv) < 3 or ':' not in sys.argv[2]: 
	print("Usage: scpsync [sourcepath] [dest:destpath] [src?]")
	exit(1)

srcheaders = ['.h', '.c', '.py', '.r', '.hpp', '.cpp', '.mal', '.sql', '.malC','.php', '.html']

source = sys.argv[1]
dest = sys.argv[2]
srconly = False
if len(sys.argv) >= 4 and sys.argv[3] == 'src':
	srconly = True

source = source.replace('~', os.environ['HOME'])
if source[0] != '/':
	source = os.path.join(os.getcwd(), source)

destmachine = dest.split(':')[0]
destfolder = dest.split(':')[1]

def get_modified_files(dir):
	global modified_times, srconly, srcheaders
	files = os.listdir(dir)
	for f in files:
		fpath = os.path.join(dir, f)
		if os.path.isfile(fpath):
			include = True
			if srconly:
				include = False
				for header in srcheaders:
					if fpath.endswith(header):
						include = True
			if include:
				modified = datetime.datetime.fromtimestamp(os.path.getmtime(fpath))
				modified_times[fpath] = [modified]
		elif os.path.isdir(dir):
			get_modified_files(fpath)

if os.path.isfile(source):
	print("Beginning sync of file '%s'" % source)
	now = datetime.datetime.fromtimestamp(os.path.getmtime(source))
	while True:
		modified = datetime.datetime.fromtimestamp(os.path.getmtime(source))
		if modified > now:
			print("Syncing file %s (%s)" % (source, str(modified)))
			os.system('scp %s %s:%s' % (source, destmachine, destfolder))
		now = modified
		time.sleep(1)
	exit(1)
elif os.path.isdir(source):
	if source[-1] != '/':
		source = source + '/'
	modified_times = {}
	get_modified_files(source)
	print("Beginning sync of folder '%s' (%d items)" % (source, len(modified_times)))
	while True:
		for fpath,prevmodified in modified_times.iteritems():
			modified = datetime.datetime.fromtimestamp(os.path.getmtime(fpath))
			if modified > prevmodified[0]:
				print("Syncing file %s (%s)" % (fpath, str(modified)))
				os.system('scp %s %s:%s' % (fpath, destmachine, os.path.join(destfolder, fpath.replace(source, ''))))
			prevmodified[0] = modified
		time.sleep(1)
	exit(1)
else:
	print("Could not find file or folder '%s'" % source)
	exit(1)