Update ShellDirective to use ts-node interpreter by default

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@extollo/lib",
-  "version": "0.13.3",
+  "version": "0.13.4",
   "description": "The framework library that lifts up your code.",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

src/cli/directive/ShellDirective.ts

@@ -1,16 +1,26 @@
-import {Directive} from '../Directive'
+import {Directive, OptionDefinition} from '../Directive'
 import * as colors from 'colors/safe'
 import * as repl from 'repl'
-import {DependencyKey} from '../../di'
+import * as tsNode from 'ts-node'
+import {globalRegistry} from '../../util'
 
 /**
  * Launch an interactive REPL shell from within the application.
  * This is very useful for debugging and testing things during development.
+ *
+ * By default, the shell launches a TypeScript interpreter, but you can use
+ * the `--js` flag to get a JavaScript interpreter.
+ *
+ * @example
+ * ```sh
+ * pnpm cli -- shell
+ * pnpm cli -- shell --js
+ * ```
  */
 export class ShellDirective extends Directive {
     protected options: any = {
-        welcome: `powered by Extollo, © ${(new Date()).getFullYear()} Garrett Mills\nAccess your application using the "app" global.`,
-        prompt: `${colors.blue('(')}extollo${colors.blue(') ➤ ')}`,
+        welcome: `powered by Extollo, © ${(new Date()).getFullYear()} Garrett Mills\nAccess your application using the "app" global and @extollo/lib using the "lib" global.`,
+        prompt: `${colors.blue('(')}extollo${colors.blue(') ➤  ')}`,
     }
 
     /**
@@ -31,17 +41,57 @@ export class ShellDirective extends Directive {
         return ''
     }
 
+    getOptions(): OptionDefinition[] {
+        return [
+            '--js | launch in JavaScript mode instead of TypeScript',
+        ]
+    }
+
     async handle(): Promise<void> {
         const state: any = {
+            globalRegistry,
             app: this.app(),
             lib: await import('../../index'),
-            make: (target: DependencyKey, ...parameters: any[]) => this.make(target, ...parameters),
+            exports: {},
         }
 
         await new Promise<void>(res => {
+            // Currently, there's no way to programmatically access the async context
+            // of the REPL from this directive w/o requiring the user to perform manual
+            // actions. So, instead, override the context on the GlobalRegistry to make
+            // the current one the global default.
+            globalRegistry.forceContextOverride()
+
+            // Create the ts-node compiler service.
+            const replService = tsNode.createRepl()
+            const service = tsNode.create({...replService.evalAwarePartialHost})
+            replService.setService(service)
+
+            // We global these values into the REPL's state directly (using the `state` object
+            // above), but since we're using a separate ts-node interpreter, we need to make it
+            // aware of the globals using declaration syntax.
+            replService.evalCode(`
+                declare const lib: typeof import('@extollo/lib');
+                declare const app: typeof lib['Application'];
+                declare const globalRegistry: typeof lib['globalRegistry'];
+            `)
+
+            // Print the welome message and start the interpreter
             this.nativeOutput(this.options.welcome)
-            this.repl = repl.start(this.options.prompt)
+            this.repl = repl.start({
+                // Causes the REPL to use the ts-node interpreter service:
+                eval: !this.option('js', false) ? (...args) => replService.nodeEval(...args) : undefined,
+                prompt: this.options.prompt,
+                useGlobal: true,
+                useColors: true,
+                terminal: true,
+                preview: true,
+            })
+
+            // Add our globals into the REPL's context
             Object.assign(this.repl.context, state)
+
+            // Wait for the REPL to exit
             this.repl.on('exit', () => res())
         })
     }