Little Python script to mimic GitHub's GUI 'Sync' button - The code doesn't work, but it does demonstrate some nice concepts

git_sync.py

import subprocess
#TES
# -- Global Variables Declarations -- #
USER = 'Oz Tamir'
EMAIL = 'TheOzTamir@gmail.com'
#REPO = 'https://' + USER + '@github.com/OzTamir/git-fix.git'
# Changed files
modified = []
# Deleted files to remove from remote
deleted = []
# Added files (Untracked at first, but added while pasring output)
added = []
# ----------------------------------- #

def git_discard():
	'''Unstage changes'''
	subprocess.call(['git', 'reset', 'HEAD', '.'], shell=True)

def git_push():
	'''Push local changes to remote'''
	subprocess.call(['git', 'push', 'origin', 'master'], shell=True)

def git_commit(message = "Being lazy, No commit message!"):
	'''Commit staged changes'''
	subprocess.call(['git', 'commit', '-m', message], shell=True)

def git_pull():
	'''Pull updates from remote (and rebase)'''
	subprocess.call(['git', 'pull', '--rebase'], shell=True)

def git_sync():
	'''Mimic GitHub GUI's 'Sync' Button'''
	set_gitconfig()
	git_pull()
	commit_msg = raw_input('Enter commit message:')
	if len(commit_msg) < 1:
		git_commit()
	else:
		git_commit(commit_msg)
	git_push()
	print 'Changed sent!'

def stage_file(filename):
	''' aka git add <filename> '''
	subprocess.call(['git', 'add', filename], shell=True)

def print_status():
	''' Print the git status with style'''
	global modified, deleted, added
	print 'Git Status:'
	if len(modified) != 0:
		print '	Modified:'
		for changed_file in modified:
			print '		- ' + changed_file
		print ''
	if len(added) != 0:
		print '	Added:'
		for added_file in added:
			print '		- ' + added_file
		print ''
	if len(deleted) != 0:
		print '	Deleted:'
		for deleted_file in deleted:
			print '		- ' + deleted_file
		print ''

def git_status():
	'''Get the status of the local git repo'''
	global modified, deleted, added
	# A Dictionary with status-list pairs
	delta = {'M' : modified, 'D' : deleted, '?' : added, 'A' : added}
	# Get the output of the 'git status -s' CMD command as a string
	status_out = subprocess.check_output(['git', 'status', '-s'])
	# Split recived output to lines
	files = status_out.split('\n')
	# Sort the filenames to their appropriate list
	for filename in files:
		# Avoid errors (last line of output might be '')
		if len(filename) < 1:
			continue
		# Remove all spaces in filename
		filename = filename.replace(' ', '')
		# Get the status and remove it from file name
		file_status = filename[0]
		filename = filename[1:]
		# Untracked files are prefixed by '??' so we need to remove one '?'
		if file_status == '?':
			filename = filename[1:]
		# If status unfamilier, ignore the file
		# TODO: add 'other' list
		# TODO: Dispose of unwanted extansions here
		if file_status not in delta.keys():
			continue
		delta[file_status].append(filename)
		stage_file(filename)

if __name__ == '__main__':
	git_status()
	print_status()
	while True:
		continue_prompt = raw_input('Would you wish to upload changes (Y/N)?')
		if len(continue_prompt) == 1:
			if continue_prompt == 'Y':
				git_sync()
				break
			elif continue_prompt == 'N':
				git_discard()
				git_pull()
				break