auth_google.py changes to remove local webserver requirement

[bgtron]

A suggestion for improvement:
In setting up the Google authentication on a GUI-less machine, the auth_google.py script throws an option for "--noauth_local_webserver", but the way auth_google.py is coded, it doesn't actually work. So, here's a suggestion for improvement that uses the oauth2 parser and adds a few arguments.

!/usr/bin/env python
import sys, argparse

from oauth2client.file import Storage
from oauth2client.client import OAuth2WebServerFlow
from oauth2client.tools import run_flow, argparser

def main():
  parser = argparse.ArgumentParser(parents=[argparser])
  parser.add_argument('client_id')
  parser.add_argument('client_secret')

  # Scopes of authorization
  activity = "https://www.googleapis.com/auth/fitness.activity.write"
  body = "https://www.googleapis.com/auth/fitness.body.write"
  location = "https://www.googleapis.com/auth/fitness.location.write"
  scopes = activity + " " + body + " " + location

  flags = parser.parse_args()
  flow = OAuth2WebServerFlow(flags.client_id, flags.client_secret, scopes)
  storage = Storage('google.json')
  run_flow(flow, storage, flags)

if __name__ == '__main__':
  main()

This slight modification in the code now properly parses the "--noauth_local_webserver" out of the args no matter the order when entered in the command line.

[pkpio]

@bgtron, Thanks for the clear suggestions. Headless setup is definitely one of the top requests. Hopefully next week I will have some time to fix this and a bunch of others. Would you be willing to make some contribution for the Google Authenticator headless setup? - I guess just send the above suggestion as a PR?

Would love to have more users involved as contributors.

[pkpio]

@bgtron Resolved along with #16