update sub generator

generators/donation/saofile.js

@@ -1,48 +1,57 @@
+// @ts-check
 
-const fs = require('fs')
-const path = require('path')
-
+/** @type {import('sao').GeneratorConfig} */
 module.exports = {
   description: 'Add a "postinstall" script to show donation URL',
-  prepare() {
-    if (!fs.existsSync(path.join(this.outPath, 'package.json'))) {
-      throw this.createError(`Cannot find package.json in ${this.outPath}`)
+  async prepare() {
+    if (!(await this.hasOutputFile('package.json'))) {
+      throw this.createError(`Cannot find package.json in ${this.outFolder}`)
     }
   },
   prompts() {
     return [
       {
+        type: 'input',
         name: 'name',
         default: this.pkg.name || this.outFolder,
         message: 'Your project name',
-        required: true
+        required: true,
       },
       {
+        type: 'input',
         name: 'url',
         message: 'The URL where users can donate to your project',
         store: true,
         required: true,
-        validate: v => /^https?:\/\//.test(v)
-      }
+        validate: (v) =>
+          /^https?:\/\//.test(v)
+            ? false
+            : `Invalid URL, must start with http(s)://`,
+      },
     ]
   },
   actions() {
     return [
       this.answers.url !== 'none' && {
         type: 'modify',
         files: 'package.json',
-        handler: data => {
+        handler: (data) => {
           data.scripts = Object.assign({}, data.scripts, {
-            postinstall: `node -e \"console.log('\\u001b[35m\\u001b[1mLove ${this.answers.name}? You can now donate to support the author:\\u001b[22m\\u001b[39m\\n> \\u001b[36m${this.answers.url}\\u001b[39m')\"`
+            postinstall: `node -e \"console.log('\\u001b[35m\\u001b[1mLove ${this.answers.name}? You can now donate to support the author:\\u001b[22m\\u001b[39m\\n> \\u001b[36m${this.answers.url}\\u001b[39m')\"`,
           })
           return data
-        }
-      }
+        },
+      },
     ].filter(Boolean)
   },
   async completed() {
     this.logger.success('Added "postinstall" script in package.json!')
-    const commands = [process.cwd() !== this.outPath &&`cd ${this.outPath}`, `${this.npmClient} run postinstall`].filter(Boolean)
-    this.logger.tip(`Run ${this.chalk.cyan(commands.join(' && '))} to see the effect.`)
-  }
-}
+    const commands = [
+      process.cwd() !== this.outDir && `cd ${this.outDir}`,
+      `${this.npmClient} run postinstall`,
+    ].filter(Boolean)
+    this.logger.tip(
+      `Run ${this.colors.cyan(commands.join(' && '))} to see the effect.`
+    )
+  },
+}

package.json

@@ -7,7 +7,8 @@
     "type": "git"
   },
   "scripts": {
-    "test": "jest"
+    "test": "jest",
+    "postinstall": "node -e \"console.log('\\u001b[35m\\u001b[1mLove undefined? You can now donate to support the author:\\u001b[22m\\u001b[39m\\n> \\u001b[36mundefined\\u001b[39m')\""
   },
   "jest": {
     "modulePathIgnorePatterns": [
@@ -41,4 +42,4 @@
     "prettier": "^2.0.5",
     "sao": "1.7.2-canary.145.30b2bdb.0"
   }
-}
+}