// ComponentsForSourceRepositories creates components for repositories that have not been previously associated by a
// builder. These components have already gone through source code detection and have a SourceRepositoryInfo attached
// to them.
func AddMissingComponentsToRefBuilder(
	b *app.ReferenceBuilder, repositories app.SourceRepositories, dockerfileResolver, sourceResolver, pipelineResolver app.Resolver,
	g *GenerationInputs,
) (app.ComponentReferences, error) {
	errs := []error{}
	result := app.ComponentReferences{}
	for _, repo := range repositories {
		info := repo.Info()
		switch {
		case info == nil:
			errs = append(errs, fmt.Errorf("source not detected for repository %q", repo))
			continue

		case info.Jenkinsfile && (g.Strategy == generate.StrategyUnspecified || g.Strategy == generate.StrategyPipeline):
			refs := b.AddComponents([]string{"pipeline"}, func(input *app.ComponentInput) app.ComponentReference {
				input.Resolver = pipelineResolver
				input.Use(repo)
				input.ExpectToBuild = true
				repo.UsedBy(input)
				repo.SetStrategy(generate.StrategyPipeline)
				return input
			})
			result = append(result, refs...)

		case info.Dockerfile != nil && (g.Strategy == generate.StrategyUnspecified || g.Strategy == generate.StrategyDocker):
			node := info.Dockerfile.AST()
			baseImage := dockerfileutil.LastBaseImage(node)
			if baseImage == "" {
				errs = append(errs, fmt.Errorf("the Dockerfile in the repository %q has no FROM instruction", info.Path))
				continue
			}
			refs := b.AddComponents([]string{baseImage}, func(input *app.ComponentInput) app.ComponentReference {
				input.Resolver = dockerfileResolver
				input.Use(repo)
				input.ExpectToBuild = true
				repo.UsedBy(input)
				repo.SetStrategy(generate.StrategyDocker)
				return input
			})
			result = append(result, refs...)

		default:
			// TODO: Add support for searching for more than one language if len(info.Types) > 1
			if len(info.Types) == 0 {
				errs = append(errs, fmt.Errorf("no language was detected for repository at %q; please specify a builder image to use with your repository: [builder-image]~%s", repo, repo))

				continue
			}
			refs := b.AddComponents([]string{info.Types[0].Term()}, func(input *app.ComponentInput) app.ComponentReference {
				input.Resolver = sourceResolver
				input.ExpectToBuild = true
				input.Use(repo)
				repo.UsedBy(input)
				return input
			})
			result = append(result, refs...)
		}
	}
	return result, kutilerrors.NewAggregate(errs)
}

// componentsForRepos creates components for repositories that have not been previously associated by a builder
// these components have already gone through source code detection and have a SourceRepositoryInfo attached to them
func (c *AppConfig) componentsForRepos(repositories app.SourceRepositories) (app.ComponentReferences, error) {
	b := c.refBuilder
	errs := []error{}
	result := app.ComponentReferences{}
	for _, repo := range repositories {
		info := repo.Info()
		switch {
		case info == nil:
			errs = append(errs, fmt.Errorf("source not detected for repository %q", repo))
			continue
		case info.Dockerfile != nil && (len(c.Strategy) == 0 || c.Strategy == "docker"):
			node := info.Dockerfile.AST()
			baseImage := dockerfileutil.LastBaseImage(node)
			if baseImage == "" {
				errs = append(errs, fmt.Errorf("the Dockerfile in the repository %q has no FROM instruction", info.Path))
				continue
			}
			refs := b.AddComponents([]string{baseImage}, func(input *app.ComponentInput) app.ComponentReference {
				resolver := app.PerfectMatchWeightedResolver{}
				if c.imageStreamSearcher != nil {
					resolver = append(resolver, app.WeightedResolver{Searcher: c.imageStreamSearcher, Weight: 0.0})
				}
				if c.dockerSearcher != nil {
					resolver = append(resolver, app.WeightedResolver{Searcher: c.dockerSearcher, Weight: 1.0})
				}
				resolver = append(resolver, app.WeightedResolver{Searcher: &app.PassThroughDockerSearcher{}, Weight: 2.0})
				input.Resolver = resolver
				input.Use(repo)
				input.ExpectToBuild = true
				repo.UsedBy(input)
				repo.BuildWithDocker()
				return input
			})
			result = append(result, refs...)
		default:
			// TODO: Add support for searching for more than one language if len(info.Types) > 1
			if len(info.Types) == 0 {
				errs = append(errs, fmt.Errorf("no language was detected for repository at %q; please specify a builder image to use with your repository: [builder-image]~%s", repo, repo))

				continue
			}
			refs := b.AddComponents([]string{info.Types[0].Term()}, func(input *app.ComponentInput) app.ComponentReference {
				resolver := app.PerfectMatchWeightedResolver{}
				if c.imageStreamByAnnotationSearcher != nil {
					resolver = append(resolver, app.WeightedResolver{Searcher: c.imageStreamByAnnotationSearcher, Weight: 0.0})
				}
				if c.imageStreamSearcher != nil {
					resolver = append(resolver, app.WeightedResolver{Searcher: c.imageStreamSearcher, Weight: 1.0})
				}
				if c.dockerSearcher != nil {
					resolver = append(resolver, app.WeightedResolver{Searcher: c.dockerSearcher, Weight: 2.0})
				}
				input.Resolver = resolver
				input.ExpectToBuild = true
				input.Use(repo)
				repo.UsedBy(input)
				return input
			})
			result = append(result, refs...)
		}
	}
	return result, errors.NewAggregate(errs)
}

//.........这里部分代码省略.........
			}
			relative = path
			break
		}
		if len(base) == 0 {
			return nil, fmt.Errorf("build path outside of the compose file: %s", v.Build)
		}

		// if this is a Git repository, make the path relative
		if root, err := git.NewRepository().GetRootDir(base); err == nil {
			if relative, err = filepath.Rel(root, filepath.Join(base, relative)); err != nil {
				return nil, fmt.Errorf("unable to find relative path for Git repository: %v", err)
			}
			base = root
		}
		buildPath := filepath.Join(base, relative)

		// TODO: what if there is no origin for this repo?

		glog.V(4).Infof("compose service: %#v", v)
		repo, err := app.NewSourceRepositoryWithDockerfile(buildPath, "")
		if err != nil {
			errs = append(errs, err)
			continue
		}
		repo.BuildWithDocker()

		info := repo.Info()
		if info == nil || info.Dockerfile == nil {
			errs = append(errs, fmt.Errorf("unable to locate a Dockerfile in %s", v.Build))
			continue
		}
		node := info.Dockerfile.AST()
		baseImage := dockerfileutil.LastBaseImage(node)
		if len(baseImage) == 0 {
			errs = append(errs, fmt.Errorf("the Dockerfile in the repository %q has no FROM instruction", info.Path))
			continue
		}

		var ports []string
		for _, s := range v.Ports {
			container, _ := extractFirstPorts(s)
			ports = append(ports, container)
		}

		image, err := g.FromNameAndPorts(baseImage, ports)
		if err != nil {
			errs = append(errs, err)
			continue
		}
		image.AsImageStream = true
		image.TagDirectly = true
		image.ObjectName = k
		image.Tag = "from"

		pipeline, err := app.NewPipelineBuilder(k, nil, false).To(k).NewBuildPipeline(k, image, repo)
		if err != nil {
			errs = append(errs, err)
			continue
		}
		if len(relative) > 0 {
			pipeline.Build.Source.ContextDir = relative
		}
		// TODO: this should not be necessary
		pipeline.Build.Source.Name = k
		pipeline.Name = k