atom_update.py

#! /usr/bin/env python
import sys
import urllib
import subprocess

def reporthook(count, block_size, total_size):
    sys.stdout.write("\r%6.2f %% [%i/%i]"%((count * block_size * 100.0 /
        total_size), count * block_size, total_size))
    sys.stdout.flush()

file_name = "atom-amd64.deb"
base_url = "https://github.com/atom/atom/releases"
url_info = urllib.urlopen("%s/latest"%base_url)
resolved = url_info.geturl()
tag = resolved.split('/')[-1]
version = lambda s: list(map(int, s.split('.')))
latest = version(tag[1:]) # remove 'v' in v0.1.2
current = version(subprocess.check_output(['atom', '--version']).strip())
if latest > current:
    print("downloading %s current is %s"%(tag, current))
    file_path, _ = urllib.urlretrieve("%s/download/%s/%s"%
        (base_url, tag, file_name), file_name, reporthook)
    print("install %s"%file_path)
    subprocess.check_output(['xdg-open', file_path])