feat: add prompts

Author: HerringtonDarkholme

pnpm-lock.yaml

@@ -1 +1,43 @@
-console.log('Hello, world!')
+import prompts from 'prompts'
+
+function required(s: string): string | true {
+  if (s.length === 0) {
+    return 'This value is required'
+  }
+  return true
+}
+
+function askConfiguration() {
+  return prompts([
+    {
+      type: 'text',
+      name: 'name',
+      message: 'Language name',
+      validate: required,
+    },
+    {
+      type: 'text',
+      name: 'treeSitterPackage',
+      message: 'Tree-sitter package to use',
+      validate: required,
+    },
+    {
+      type: 'list',
+      name: 'extension',
+      message: 'File extensions used by the language, comma separated',
+      separator: ',',
+      validate: required,
+    },
+    {
+      type: 'text',
+      name: 'expandoChar',
+      message: 'Expando char used in pattern',
+      initial: '$',
+      validate: (value) => {
+        return value.length === 1 ? true : 'Expando char must be a single character'
+      }
+    }
+  ])
+}
+
+askConfiguration().then(console.log)

scripts/create-lang/index.ts

@@ -1,24 +1,29 @@
 {
   "name": "@ast-grep/create-lang",
-  "version": "0.0.1",
+  "version": "0.0.0-prerelease",
   "private": false,
   "description": "",
   "main": "index.js",
   "keywords": [],
   "author": "",
   "license": "ISC",
+  "bin": {
+    "create-lang": "index.js"
+  },
   "scripts": {
     "compile-ts": "tsc",
     "prepublishOnly": "tsc"
   },
   "dependencies": {
+    "prompts": "2.4.2"
   },
   "publishConfig": {
     "access": "public",
     "registry": "https://registry.npmjs.org/"
   },
   "devDependencies": {
-    "typescript": "^5.7.3",
-    "@types/node": "22.10.5"
+    "@types/node": "22.10.5",
+    "@types/prompts": "^2.4.9",
+    "typescript": "^5.7.3"
   }
 }