Embed certs in OpenVPN config

gistfile1.py

#!/usr/bin/python

import argparse
import sys

def should_embed(line):
    return True in (line.startswith(k) for k in ['ca', 'key', 'cert', 'dh'])

def embed(filename, out):
    for line in (l.strip() for l in open(filename, 'r').readlines()):
        if should_embed(line):
            option, certfile = line.split(' ')
            out.write('<%(option)s>\n%(content)s</%(option)s>\n' % \
                    dict(option=option, content=open(certfile, 'r').read()))
        else:
            out.write(line + '\n')

def main():
    parser = argparse.ArgumentParser(
            description='Embed certs to openvpn config.')
    parser.add_argument('filename', type=str,
                        help='openvpn config file')
    parser.add_argument('-o', dest='output', type=str, default='-',
                        help='embeded openvpn config file')
    args = parser.parse_args()
    
    out = sys.stdout if args.output == '-' else open(args.output, 'w')
    embed(args.filename, out)
    out.close()

if __name__ == '__main__':
    main()