src/testing/host-target-testing/artifacts/builder.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 artifacts

import (
	"context"
	"fmt"
	"strings"

	"golang.org/x/crypto/ssh"

	"go.fuchsia.dev/fuchsia/src/testing/host-target-testing/util"
)

// Builder allows fetching build information from a specific builder.
type Builder struct {
	archive *Archive
	name    string
}

// LookupBuildID looks up the latest build id for a given builder.
func (b *Builder) GetLatestBuildID(ctx context.Context) (string, error) {
	stdout, stderr, err := util.RunCommand(ctx, b.archive.lkgPath, "build", "-builder", b.name)
	if err != nil {
		return "", fmt.Errorf("lkg failed: %w: %s", err, string(stderr))
	}
	return strings.TrimRight(string(stdout), "\n"), nil
}

// GetLatestBuild looks up the latest build for a given builder.
func (b *Builder) GetLatestBuild(ctx context.Context, dir string, publicKey ssh.PublicKey) (*ArtifactsBuild, error) {
	id, err := b.GetLatestBuildID(ctx)
	if err != nil {
		return nil, err
	}

	return b.archive.GetBuildByID(ctx, id, dir, publicKey)
}

func (b *Builder) String() string {
	return b.name
}