squasher.py

import sys
import os
import glob

def get_contents(file):
    with open(file, mode='rU') as f:
        for line in f:
            yield line

def write_contents(file, iterable):
    with open(file, mode='a') as f:
        f.writelines(iterable)

def squash(final, files):
    for file in files:
        write_contents(final, get_contents(file))

def run():
    try:
        if not len(sys.argv) > 2:
            print("Expecting: [destination_file] (glob pattern) as arguments.")
            return 1
        final = os.path.join(os.getcwd(), sys.argv[1])
        files = glob.iglob(os.path.join(os.getcwd(), sys.argv[2]))
        squash(final, files)
        return 0
    except Exception as e:
        print(e)
        return 1

if __name__ == '__main__':
    run()