#!/usr/bin/env python

import argparse
import sys

try:
    import brew
except ImportError as e:
    print str(e)
    print 'Please install the required dependencies first'
    print 'sudo pip install -r requirements.txt'
    sys.exit(1)

if __name__ == '__main__':
    parser = argparse.ArgumentParser('Build the docker standard library')
    parser.add_argument('--push', action='store_true', default=False,
        help='Push generated repositories')
    parser.add_argument('--debug', default=False, action='store_true',
        help='Enable debugging output')
    parser.add_argument('--noprefill', default=True, action='store_false',
        dest='prefill', help='Disable cache prefill')
    parser.add_argument('-n', metavar='NAMESPACE', default='library',
        help='Namespace used for generated repositories.'
        ' Default is library')
    parser.add_argument('-b', metavar='BRANCH', default=brew.DEFAULT_BRANCH,
        help='Branch in the repository where the library definition'
        ' files will be fetched. Default is ' + brew.DEFAULT_BRANCH)
    parser.add_argument('repository', default=brew.DEFAULT_REPOSITORY,
        nargs='?', help='git repository containing the library definition'
        ' files. Default is ' + brew.DEFAULT_REPOSITORY)
    parser.add_argument('--reg', default=None, help='Registry address to'
        ' push build results to. Also sets push to true.')
    args = parser.parse_args()
    brew.build_library(args.repository, args.b, args.n,
        args.push or args.reg is not None, args.debug, args.prefill, args.reg)