feat: 改同步为异步

packages/root-html-file/public/generate-app.js

@@ -1,25 +1,45 @@
 const path = require('path')
-const fs = require('fs')
+const fs = require('fs');
 const root = process.cwd()
 console.log(`当前工作目录是: ${root}`);
-function readDir(root) {
+
+const callback = (resolve, reject) => (err, data) => err ? reject(err) : resolve(data)
+
+const createPromise = (func) => (...args) => {
+  return new Promise((resolve, reject) => {
+    func(...args, callback(resolve, reject))
+  })
+}
+
+
+
+main(root)
+
+/**
+ * 读取文件夹的路径
+ * @param {*} root 
+ */
+async function readDir(root) {
   const manifests = []
   const files = fs.readdirSync(root)
   console.log(files)
-  files.forEach(i => {
+  const statPromise = createPromise(fs.stat)
+  for (let i of files) {
     const filePath = path.resolve(root, '.', i)
-    const stat = fs.statSync(filePath);
+    const stat = await statPromise(filePath);
     const is_direc = stat.isDirectory();
-
     if (is_direc) {
       manifests.push(filePath)
     }
+  }
 
-  })
   return manifests
 }
 
-
+/**
+ * 读取json
+ * @param {*} files 
+ */
 function readManifests(files) {
   const jsons = {}
   files.forEach(i => {
@@ -36,11 +56,16 @@ function readManifests(files) {
 }
 
 
-
-function generateFile(jsons) {
+/**
+ * 生成文件
+ * @param {}} jsons 
+ */
+async function generateFile(jsons) {
   const { apps } = require('./app.config.json')
   const { imports } = require('./importmap.json')
 
+  const writeFilePromise = createPromise(fs.writeFile)
+
 
   Object.keys(jsons).forEach(key => {
     imports[key] = jsons[key]
@@ -55,29 +80,31 @@ function generateFile(jsons) {
   })
 
 
-
-  fs.writeFileSync('./importmap.json', JSON.stringify(
-    {
-      imports
-    }
-  ))
-
-  fs.writeFileSync('./app.config.json', JSON.stringify(
-    {
-      apps
-    }
-  ))
+  Promise.all([
+    writeFilePromise('./importmap.json', JSON.stringify(
+      {
+        imports
+      }
+    )),
+    writeFilePromise('./app.config.json', JSON.stringify(
+      {
+        apps
+      }
+    ))
+  ])
 
 }
 
 
+async function main(root) {
+  const dir = await readDir(root)
+  const jsons = readManifests(dir)
+  await generateFile(jsons)
+  console.log('生成配置文件成功')
+}
 
-const dir = readDir(root)
 
-const jsons = readManifests(dir)
 
-generateFile(jsons)
 
-console.log('生成配置文件成功')