func do()

in cmd/zoekt-archive-index/main.go [117:194]
66 lines of code
18 McCabe index (conditional complexity)

func do(opts Options, bopts build.Options) error {
	opts.SetDefaults()

	if opts.Name == "" && opts.RepoURL == "" {
		return errors.New("-name or -url required")
	}
	if opts.Branch == "" {
		return errors.New("-branch required")
	}

	if opts.Name != "" {
		bopts.RepositoryDescription.Name = opts.Name
	}
	if opts.RepoURL != "" {
		u, err := url.Parse(opts.RepoURL)
		if err != nil {
			return err
		}
		if err := gitindex.SetTemplatesFromOrigin(&bopts.RepositoryDescription, u); err != nil {
			return err
		}
	}
	bopts.SetDefaults()
	bopts.RepositoryDescription.Branches = []zoekt.RepositoryBranch{{Name: opts.Branch, Version: opts.Commit}}
	brs := []string{opts.Branch}

	if opts.Incremental && bopts.IncrementalSkipIndexing() {
		return nil
	}

	a, err := openArchive(opts.Archive)
	if err != nil {
		return err
	}
	defer a.Close()

	bopts.RepositoryDescription.Source = opts.Archive
	builder, err := build.NewBuilder(bopts)
	if err != nil {
		return err
	}

	add := func(f *File) error {
		defer f.Close()

		contents, err := ioutil.ReadAll(f)
		if err != nil {
			return err
		}

		name := stripComponents(f.Name, opts.Strip)
		if name == "" {
			return nil
		}

		return builder.Add(zoekt.Document{
			Name:     name,
			Content:  contents,
			Branches: brs,
		})
	}

	for {
		f, err := a.Next()
		if err == io.EOF {
			break
		}
		if err != nil {
			return err
		}

		if err := add(f); err != nil {
			return err
		}
	}

	return builder.Finish()
}