Method registerHooks

plugins/jsvm/jsvm.go:237–350

registerHooks registers the JS app hooks loader.

()

// registerHooks registers the JS app hooks loader.
func (p *plugin) registerHooks() error {
	// fetch all js hooks sorted by their filename
	files, err := filesContent(p.config.HooksDir, p.config.HooksFilesPattern)
	if err != nil {
		return err
	}

	// prepend the types reference directive
	//
	// note: it is loaded during startup to handle conveniently also
	// the case when the HooksWatch option is enabled and the application
	// restart on newly created file
	for name, content := range files {
		if len(content) != 0 {
			// skip non-empty files for now to prevent accidental overwrite
			continue
		}
		path := filepath.Join(p.config.HooksDir, name)
		directive := `/// <reference path="` + p.relativeTypesPath(p.config.HooksDir) + `" />`
		if err := prependToEmptyFile(path, directive+"\n\n"); err != nil {
			color.Yellow("Unable to prepend the types reference: %v", err)
		}
	}

	// initialize the hooks dir watcher
	if p.config.HooksWatch {
		if err := p.watchHooks(); err != nil {
			color.Yellow("Unable to init hooks watcher: %v", err)
		}
	}

	if len(files) == 0 {
		// no need to register the vms since there are no entrypoint files anyway
		return nil
	}

	absHooksDir, err := filepath.Abs(p.config.HooksDir)
	if err != nil {
		return err
	}

	p.app.OnServe().BindFunc(func(e *core.ServeEvent) error {
		e.Router.BindFunc(p.normalizeServeExceptions)

		return e.Next()
	})

	// safe to be shared across multiple vms
	requireRegistry := new(require.Registry)
	templateRegistry := template.NewRegistry()

	sharedBinds := func(vm *goja.Runtime) {
		requireRegistry.Enable(vm)
		console.Enable(vm)
		process.Enable(vm)
		buffer.Enable(vm)

		BindCore(vm)