A python script to install Ansible from source on a Debian based operating system.

install_ansible.py

#!/usr/bin/env python
import subprocess
import optparse
import platform

# -------------------------------------Globals------------------------------------------------------
install = []
uninstall = ["sudo pip uninstall ansible", "sudo apt-get purge libffi-dev libssl-dev"]
PLATFORM = platform.system()
ARCHITECTURE = platform.architecture()[0]

# -------------------------------------Running commands--------------------


def run_commands(cmds):
    """
    Function which run all commands one by one.
    """
    for cmd in cmds:
        try:
            subprocess.call(cmd, shell=True)
        except Exception as e:
            print e

# ----------------------------------------Option parsing-------------------


def controller():
    """
    Function to control option parsing.
    """
    global install, VERBOSE

    # Create instance of OptionParser Module, included in Standard Library
    p = optparse.OptionParser(description='For installing ansible',
                              prog='install_ansible',
                              version='install_ansible 0.1',
                              usage='%prog [option]')
    p.add_option('--install', '-i', action="store_true", help='install ansible from source.')
    p.add_option('--uninstall', '-u', action="store_true",
                 help='uninstall ansible along with development libraries installed during the installation process.')
    p.add_option('--verbose', '-v',
                 action='store_true',
                 help='prints verbosely',
                 default=False)

    # Option Handling passes correct parameter to runBash
    options, arguments = p.parse_args()
    if options.verbose:
        VERBOSE = True
    if options.install:
        if PLATFORM == "Linux":
            # ----------------------------------------setting commands----------------------------
            # Install gcc to compile the code
            install.append("sudo apt-get install gcc")
            # Installing python setuptools for installing pip
            install.append("sudo apt-get install python-setuptools")
            # Installing pip to get ansible source from pypi
            install.append("sudo easy_install pip")
            # Installing python-dev for python development libraries
            install.append("sudo apt-get install python-dev")
            # Installing development dependencies for ansible
            install.append("sudo apt-get install libffi-dev")
            install.append("sudo apt-get install libssl-dev")
            # Install ansible
            install.append("sudo pip install ansible")
        else:
            print "Wrong operating system detected."

        value = run_commands(install)
    elif options.uninstall:
        value = run_commands(uninstall)
    else:
        p.print_help()

# Runs all the functions


def main():
    controller()

# This idiom means the below code only runs when executed from command line
if __name__ == '__main__':
    main()