uncompress.py

#! /usr/bin/env python

"""
uncompress packages from ~/software/ directory
"""

import os, sys

p = os.path
cwd = os.getcwd()

if p.dirname(p.abspath(sys.argv[0])) != cwd:
    print "Usage: ./uncompress.py"
    sys.exit(1)

cwd += '/' # add slash
dir = p.expanduser('~') + "/software/"

if not p.exists(dir):
    print "* [" + dir + "] not exists."
    sys.exit(2)

packages = os.popen("ls " + dir + " | grep -i '[(gz|bz2)]$'").read().split('\n')

if not len(packages):
    print "* nothing to uncompress."
    sys.exit(3)

to_uncompress = filter(lambda x: not os.path.exists(cwd + x.split('tar')[0][:-1]), packages)

if len(to_uncompress):
    for i in to_uncompress:
        file = dir + i;
        if p.isfile(file):
            cmd = 'tar -x'
            if i[-1:] == '2':
                # bz2 package
                cmd += 'jf '
            else:
                # gzip package
                cmd += 'zf '
            print "* uncompressing " + file
            os.system(cmd + file)
        else:
            print "* [" + file + "] not exists."
else:
    print "* nothing to uncompress."