Make dropbox start properly

delay_dropbox.py

import os
import subprocess
import shutil
import time
import sys

# copied from dropbox source code
PARENT_DIR = os.path.expanduser("~")
DROPBOX_DIST_PATH = "%s/.dropbox-dist" % PARENT_DIR
DROPBOXD_PATH = os.path.join(DROPBOX_DIST_PATH, "dropboxd")

def is_dropbox_running():
    pidfile = os.path.expanduser("~/.dropbox/dropbox.pid")

    try:
        with open(pidfile, "r") as f:
            pid = int(f.read())
        with open("/proc/%d/cmdline" % pid, "r") as f:
            cmdline = f.read().lower()
    except Exception:
        cmdline = ""

    return "dropbox" in cmdline

def start_dropbox():
    if os.access(DROPBOXD_PATH, os.X_OK):
        f = open("/dev/null", "w")

        # Fix indicator icon and menu on Unity environments. (LP: #1559249)
        # Fix indicator icon and menu in Budgie environment. (LP: #1683051)
        new_env = os.environ.copy()        
        current_env = os.environ.get("XDG_CURRENT_DESKTOP", '').split(":")
        to_check = ['Unity', 'Budgie']
        if any(word in to_check for word in current_env):
            new_env['XDG_CURRENT_DESKTOP'] = 'Unity'

        # we don't reap the child because we're gonna die anyway, let init do it
        dropboxd_proc = subprocess.Popen([DROPBOXD_PATH], preexec_fn=os.setsid, cwd=os.path.expanduser("~"),
                             stderr=sys.stderr, stdout=f, close_fds=True, env=new_env)

        while dropboxd_proc.poll() is None:
            if is_dropbox_running():
                return True
            time.sleep(5)
        print(f'dropbox proprietary daemon exited with code {dropboxd_proc.returncode}')
        return False
    else:
        return False

def start():
    subprocess.Popen([shutil.which('dropbox'), 'start'])

def main():
    if is_dropbox_running() or start_dropbox():
        print('dropbox daemon is running')
        start()
    else:
        print('unable to start daemon')
        sys.exit(1)

if __name__ == '__main__':
    main()