quickapp: copy dir: sign to .quickapp

packages/uni-quickapp-light/lib/uni.config.js

 const fs = require('fs')
 const path = require('path')
 
+const SIGN_DIR_NAME = 'sign'
+// TODO quickapp ide 有bug，不识别项目根目录 sign，暂时拷贝到 .quickapp 目录
+const SIGN_OUT_DIR_NAME = '.quickapp/sign'
+
+function getSignCopyOption () {
+  const signDir = path.resolve(process.env.UNI_INPUT_DIR, SIGN_DIR_NAME)
+  if (fs.existsSync(signDir)) {
+    return {
+      from: signDir,
+      to: SIGN_OUT_DIR_NAME
+    }
+  }
+}
+
 module.exports = {
   options: {
     cssVars: {
@@ -24,11 +38,19 @@ module.exports = {
     }
   },
   copyWebpackOptions (platformOptions, vueOptions) {
-    const jsConfigPath = path.resolve(process.env.UNI_INPUT_DIR, 'jsconfig.json')
-    if (fs.existsSync(jsConfigPath)) {
-      return [jsConfigPath]
-    }
-    return [path.resolve(__dirname, 'assets/jsconfig.json')]
+    const copyOptions = []
+    let jsConfigPath = path.resolve(process.env.UNI_INPUT_DIR, 'jsconfig.json')
+    if (!fs.existsSync(jsConfigPath)) {
+        jsConfigPath = path.resolve(__dirname, 'assets/jsconfig.json')
+    }
+    copyOptions.push(jsConfigPath)
+
+    const signCopyOption = getSignCopyOption()
+    if (signCopyOption) {
+      copyOptions.push(signCopyOption)
+    }
+
+    return copyOptions
   },
   configureWebpack () {
     return {