e.py partial rewrite

e.py

#!/usr/bin/env python
"""e.

Usage:
  e.py [--wait] [PATHS ...]
  e.py (-h | --help)


Options:
  -h --help     Show this screen.
  -w --wait     Wait.

"""
import subprocess
import os

from docopt import docopt

def trampify(path):
    path = os.path.abspath(os.path.expandvars(os.path.expanduser(path)))
    if path.startswith("/ssh:"):
        return path
    try:
        with open(path, 'w+'):
            pass                # this creates the file if it doesn't exist
    except:
        path = "/sudo::" + path
    return path

def desktop():
    return os.environ.get('DISPLAY')

def wmctrl(args):
    cmd = 'wmctrl ' + args
    return subprocess.check_output(cmd.split())

def get_emacs_args(options):
    eargs = ['-a']
    if desktop() and not options['--wait']:
        eargs.append('-n')
    if options['PATHS']:
        eargs.extend(trampify(x) for x in options['PATHS'])
    return eargs

# ... 

if __name__ == '__main__':
    arguments = docopt(__doc__)
    print(arguments)
    print(get_emacs_args(arguments))