cmd/build_init/checkout/checkout.go

// Copyright 2019 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.

package checkout

import (
	"net/url"
	"os"

	buildbucketpb "go.chromium.org/luci/buildbucket/proto"
	"go.fuchsia.dev/infra/cmd/build_init/execution"
)

// Checkout checks out the git repo at repoURL according to the given build input.
func Checkout(input buildbucketpb.Build_Input, repoURL url.URL, specRef string) error {
	strat, err := newStrategy(input, repoURL, specRef)
	if err != nil {
		return err
	}
	// Write everything to stderr. When this becomes the first subcommand to run under
	// LUCI, writing to stdout would interfere with build.proto output.
	executor := execution.NewExecutor(os.Stderr, os.Stderr)
	if err := strat.Checkout(executor); err != nil {
		return err
	}
	return nil
}