#!/usr/bin/env python

import optparse
import os
import shutil
import sys

from invirt import builder, common
from invirt.config import structs as config

REPO_BASE = '/srv/git/invirt'
HOOK_BASE = '/usr/share/invirt-dev/git-hooks'

def main():
    parser = optparse.OptionParser('%prog repo <category> <name>')
    opts, args = parser.parse_args()
    
    if len(args) != 3:
        parser.print_help()
        return 1

    category = args[1]
    name = args[2]
    principal = os.environ['REMOTE_USER']
    repo_path = os.path.join(REPO_BASE, category, '%s.git' % name)

    if os.path.exists(repo_path):
        print >>sys.stderr, '%s already exists!' % repo_path
        return 1

    print 'Creating new repo at %s' % repo_path
    os.makedirs(repo_path)
    common.captureOutput(['git', 'init', '--bare', '--shared=group'], cwd=repo_path)
    common.captureOutput(['git', 'config', 'receive.denyNonFastForwards', 'false'], cwd=repo_path)
    common.captureOutput(['chgrp', 'repo', '-R', '.'], cwd=repo_path)
    print 'Replacing hooks directory with a symlink'
    hooks_dir = os.path.join(repo_path, 'hooks')
    shutil.rmtree(hooks_dir)
    common.captureOutput(['chown', '-R', 'git:', repo_path])
    if category == 'packages':
        os.symlink(os.path.join(HOOK_BASE, 'sub'), hooks_dir)
    else:
        os.symlink(os.path.join(HOOK_BASE, 'other'), hooks_dir)
    
    builder.runHook('post-add-repo', [category, name, principal])

if __name__ == '__main__':
    sys.exit(main())