# Copyright 2020 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Recipe to auto roll changes by running a script in the same repo."""

from urlparse import urlparse
from recipe_engine.recipe_api import Property

DEPS = [
    "fuchsia/auto_roller",
    "fuchsia/gerrit",
    "fuchsia/git",
    "fuchsia/status_check",
    "recipe_engine/context",
    "recipe_engine/path",
    "recipe_engine/properties",
    "recipe_engine/step",
]

PROPERTIES = {
    "remote": Property(kind=str, help="Repository URL"),
    "script": Property(kind=str, help="Script to run to update the repo"),
    "commit_untracked_files": Property(
        kind=bool, default=True, help="Whether to commit untracked files"
    ),
    "dry_run": Property(
        kind=bool,
        default=False,
        help="Whether to dry-run the auto-roller (CQ+1 and abandon the change)",
    ),
}


def RunSteps(api, remote, commit_untracked_files, script, dry_run):
    # Get the name of the project (e.g. "infra/prebuilt", "samples", etc.) from
    # the remote repository URL (e.g. "https://fuchsia.googlesource.com/infra/prebuilt")
    project = urlparse(remote).path.lstrip("/")
    # Check out the repo.
    repo_dir = api.path["start_dir"].join(project)
    with api.step.nest("checkout %s" % project):
        api.git.checkout(remote, path=repo_dir)

    # Run update script
    with api.context(cwd=repo_dir):
        api.step("run %s" % script, [script])

    # Land the changes made by the script
    change = api.auto_roller.attempt_roll(
        api.gerrit.host_from_remote_url(remote),
        gerrit_project=project,
        repo_dir=repo_dir,
        commit_message='Updating with "%s"' % script,
        commit_untracked=commit_untracked_files,
        dry_run=dry_run,
    )

    return api.auto_roller.raw_result(change)


def GenTests(api):
    yield (
        api.status_check.test("basic")
        + api.properties(
            remote="https://fuchsia.googlesource.com/foo/bar",
            script="example/script.sh",
        )
        + api.auto_roller.success()
    )