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49 lines
1.4 KiB
49 lines
1.4 KiB
import {Directive} from '../Directive'
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import * as colors from 'colors/safe'
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import * as repl from 'repl'
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import {DependencyKey} from '../../di'
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/**
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* Launch an interactive REPL shell from within the application.
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* This is very useful for debugging and testing things during development.
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*/
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export class ShellDirective extends Directive {
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protected options: any = {
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welcome: `powered by Extollo, © ${(new Date()).getFullYear()} Garrett Mills\nAccess your application using the "app" global.`,
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prompt: `${colors.blue('(')}extollo${colors.blue(') ➤ ')}`,
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}
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/**
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* The created Node.js REPL server.
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* @protected
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*/
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protected repl?: repl.REPLServer
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getDescription(): string {
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return 'launch an interactive shell inside your application'
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}
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getKeywords(): string | string[] {
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return ['shell']
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}
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getHelpText(): string {
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return ''
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}
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async handle(): Promise<void> {
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const state: any = {
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app: this.app(),
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lib: await import('../../index'),
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make: (target: DependencyKey, ...parameters: any[]) => this.make(target, ...parameters),
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}
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await new Promise<void>(res => {
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this.nativeOutput(this.options.welcome)
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this.repl = repl.start(this.options.prompt)
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Object.assign(this.repl.context, state)
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this.repl.on('exit', () => res())
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})
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}
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}
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