func prepareRenderContext()

in pkg/tasks/template/render.go [130:200]
52 lines of code
10 McCabe index (conditional complexity)

func prepareRenderContext(cfg *renderContextConfig) (engine.Context, error) {
	// Load values
	valueOpts := tplcmdutil.ValueOptions{
		ValueFiles:   cfg.ValueFiles,
		Values:       cfg.Values,
		StringValues: cfg.StringValues,
		FileValues:   cfg.FileValues,
	}
	values, err := valueOpts.MergeValues()
	if err != nil {
		return nil, fmt.Errorf("unable to process input values: %w", err)
	}

	// Load files
	var files engine.Files
	if !types.IsNil(cfg.FileRootPath) {
		var errFs error
		files, errFs = tplcmdutil.Files(cfg.FileRootPath, ".")
		if errFs != nil {
			return nil, fmt.Errorf("unable to process files: %w", errFs)
		}
	}

	// If alternative delimiters is used
	if cfg.AltDelims {
		cfg.LeftDelims = "[["
		cfg.RightDelims = "]]"
	}

	// Process secret readers
	secretReaders := []engine.SecretReaderFunc{}
	for _, sr := range cfg.SecretLoaders {
		if sr == "vault" {
			// Initialize Vault connection
			vaultClient, errVault := api.NewClient(api.DefaultConfig())
			if errVault != nil {
				return nil, fmt.Errorf("unable to initialize vault secret loader: %w", errVault)
			}

			secretReaders = append(secretReaders, kv.SecretGetter(vaultClient))
			continue
		}

		// Read container
		containerReader, errLoader := cmdutil.Reader(sr)
		if errLoader != nil {
			return nil, fmt.Errorf("unable to read secret container: %w", errLoader)
		}

		// Load container
		b, errBundle := bundle.FromContainerReader(containerReader)
		if errBundle != nil {
			return nil, fmt.Errorf("unable to decode secret container: %w", err)
		}

		// Append secret loader
		secretReaders = append(secretReaders, bundle.SecretReader(b))
	}

	// Create rendering context
	renderCtx := engine.NewContext(
		engine.WithName("template"),
		engine.WithDelims(cfg.LeftDelims, cfg.RightDelims),
		engine.WithValues(values),
		engine.WithFiles(files),
		engine.WithSecretReaders(secretReaders...),
	)

	// No error
	return renderCtx, nil
}