# Copyright 2018 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

"""Find a project path from this chromiumos checkouts manifest file.

Uses both a project name and a branch name to search the manifest file for a
matching path entry, printing the path to stdout if found and raising an
exception if no match can be found.
"""

from chromite.lib import commandline
from chromite.lib import repo_util
from chromite.utils import repo_manifest


def get_parser():
    """Creates the argparse parser.

    Returns:
        commandline.ArgumentParser: The argument parser.
    """
    parser = commandline.ArgumentParser(description=__doc__)
    parser.add_argument(
        "--manifest-file",
        type="path",
        help="File path to a manifest to search.",
    )
    parser.add_argument(
        "--project", required=True, help="The project to search for."
    )
    parser.add_argument(
        "--branch", default="master", help="The branch to search for."
    )
    return parser


def main(argv):
    parser = get_parser()
    options = parser.parse_args(argv)
    options.Freeze()
    if options.manifest_file:
        manifest = repo_manifest.Manifest.FromFile(options.manifest_file)
    else:
        manifest = repo_util.Repository.MustFind(__file__).Manifest()
    print(manifest.GetUniqueProject(options.project, options.branch).Path())