updatecalcurse

#! /usr/bin/env python3
# -*- coding: utf-8 -*-
# vim:fenc=utf-8
#
# Copyright © 2016 Johnathan "Shaggytwodope" Jenkins <twodopeshaggy@gmail.com>
#
# Distributed under terms of the GPL2 license.
import argparse
import os
import urllib.request
import shutil
import configparser
import sys

localaptsfile = "/home/shaggy/.calcurse/myapts"
aptsfile = "/home/shaggy/.calcurse/apts"
aptsfilebackup = "/home/shaggy/.calcurse/apts_backup"
aptstempfile = "/home/shaggy/.calcurse/aptstemp"

parser = argparse.ArgumentParser()
parser.add_argument("-v", "--verbose",
                    help='verbose mode',
                    action='store_true')
args = parser.parse_args()


filepath = '/home/shaggy/.config/updatecalcurse.cfg'
config = configparser.ConfigParser()
config.read(filepath)


def main():
    for (name, url) in config.items('calendars'):
        if args.verbose:
            print("downloading %s" % name.split('.')[0])
        try:
            urllib.request.urlretrieve(url, name)
        except IOError:
            print("There was a problem downloading the data for "
                  + name.split('.')[0])
            sys.exit(1)

    if args.verbose:
        print("clearing old data...")
    try:
        os.remove(aptsfile)
    except:
        print("There was a problem removing old data")
        sys.exit(1)

    if args.verbose:
        print("importing calendar data...")
    for (name, url) in config.items('calendars'):
        try:
            os.system("calcurse -i " + str(name) + ">/dev/null 2>&1")
        except OSError:
            print("There was a problem importing the data for "
                  + name.split('.')[0])

    try:
        shutil.move(aptsfile, aptstempfile)
    except:
        print("There was a problem copying data to back up")
        sys.exit(1)
    filenames = [localaptsfile, aptstempfile]
    with open(aptsfile, "w") as outfile:
        for fname in filenames:
            with open(fname) as infile:
                outfile.write(infile.read())

    if args.verbose:
        print("backing up..")
    try:
        shutil.copy(aptsfile, aptsfilebackup)
    except:
        print("There was a problem backing up data")
        sys.exit(1)
    if args.verbose:
        print("cleaning up downloaded files...")
    try:
        os.remove(aptstempfile)
    except:
        print("There was a problem cleaning up temp data")
        sys.exit(1)
    for (name, url) in config.items('calendars'):
        try:
            os.remove(name)
        except OSError:
            print("There was a problem removing calendar data")
            sys.exit(1)

    if args.verbose:
        print("done")


if __name__ == '__main__':
    main()