Add fix-compatibility npm command

.drone.yml

@@ -15,6 +15,7 @@ steps:
   - name: build
     image: node:lts
     commands:
+      - npm run fix-compatibility
       - npm run build
       - tar -czf legacy.tar.gz -C ./dist .
       - npm run build -- --modern

package.json

@@ -4,7 +4,8 @@
   "private": true,
   "scripts": {
     "serve": "vue-cli-service serve",
-    "build": "vue-cli-service build"
+    "build": "vue-cli-service build",
+    "fix-compatibility": "node ./src/fix-compatibility.js"
   },
   "dependencies": {
     "browser-id3-writer": "^4.4.0",

src/fix-compatibility.js

@@ -5,16 +5,21 @@
 // now manually edit the dependency files
 
 const fs = require('fs');
-const filePath = "../node_modules/file-type/core.js";
+const filePath = "./node_modules/file-type/core.js";
 const regReplace = /{\s*([a-zA-Z0-9:,\s]*),\s*\.\.\.([a-zA-Z0-9]*)\s*};/m;
 if (fs.existsSync(filePath)) {
+    console.log("File Found!");
     let data = fs.readFileSync(filePath).toString();
     const regResult = regReplace.exec(data);
     if (regResult != null) {
         data = data.replace(regResult[0],
             "Object.assign({ " + regResult[1] + " }, " + regResult[2] + ");"
         );
+        fs.writeFileSync(filePath, data);
+        console.log("Object rest spread in file-type fixed!");
+    } else {
+        console.log("No fix needed.");
     }
-    fs.writeFileSync(filePath, data);
-    console.log("Object rest spread in file-type fixed!")
+} else {
+    console.log("File Not Found!");
 }