cross-platform package info

pk.py

"""
packaging for humans (tm)..

humans are easily overloaded with information, so
this should be the intuitive way to express and
solve what humans want.

001 get what package does

    pk show <name>
    pk info <name>

002 check what was updated

    pk news <name>

"""

__author__ = 'anatoly techtonik <techtonik@gmail.com>'
__license__ = 'public domain'

import os
import sys
import subprocess

def run(command):
  print('running: ' + command)
  subprocess.Popen(command.split()).communicate()

if len(sys.argv) < 3:
  sys.exit(__doc__.strip() + "\n")


command  = sys.argv[1]
name = sys.argv[2]


if command not in ['info', 'show', 'news']:
  sys.exit('error: unsupported command "%s"' % command)
if command == 'info':
  command = 'show'

# Debian, Ubuntu, ...
if os.path.exists('/etc/debian_version'):
  if command == 'show':
    cmd = 'apt-cache show ' + name
  elif command == 'news':
    cmd = 'apt-get changelog ' + name
  run(cmd)
else:
  sys.exit('error: can\'t detect OS for running "%s"' % command)