Emacs.app Launch ScriptThis script will nestle in yo' `/usr/local/bin` spawnin yo' Emacs.app processes to edit yo' files.

emacs

#!/usr/bin/env python
import sys
import subprocess
import tempfile
import time

# Emacs is in the Cellar, installed by Homebrew
emacspath="/usr/local/Cellar/emacs/24.3/Emacs.app/Contents/MacOS/Emacs"

def run(cmd, args):
    args[:0] = [cmd]
    subprocess.call(args)
 
wait_for_exit = False
interactive = False
args = []

for arg in sys.argv[1:]:
    if arg == "-w" or arg == "--wait":
        wait_for_exit = True
    elif arg == "-h" or arg == "--help":
        run(emacspath, ["--help"])
        print """

Emacs wrapper options:

--wait, -w           wait for emacs to finish
-                    read standard input into a new buffer

"""
        sys.exit()
    elif arg == "-":
        with tempfile.NamedTemporaryFile(delete=False) as tmpfile:
            tmpfile.write(sys.stdin.read())
            args.append(tmpfile.name)
    elif arg == "-nw":
        interactive = True
    else:
        args.append(arg)

if interactive:
    args.append("-nw")
    ret = run(emacspath, args)
    sys.exit(ret)
 
# spawn off an emacs process
args[:0] = [emacspath]
emacs_process = subprocess.Popen(args, stdout=None, stderr=None)

# Wait for the emacs window to become active so we can mess with it
time.sleep(1)
 
# Execute some applescript to make emacs activate
run("osascript", ["-e",  "tell application \"Emacs\" to activate"])
 
if wait_for_exit:
    # Wait for it if we need to
    emacs_process.wait()

Makes sure that emacs doesn't mess up your terminal with it's stdout or stderr. Also brings the application to the foreground, which doesn't happen by default on Mac. Who knows why.