Only get id3 data if mp3

Author: jhotmann

package.json

@@ -1,6 +1,6 @@
 {
   "name": "fileutils-cli",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "A collection of powerful command line file utilities",
   "main": "src/bin.js",
   "preferGlobal": true,

src/common/FileData.js

@@ -24,7 +24,7 @@ module.exports.FileData = class FileData {
   async get() {
     let exifData = getExifData(this.parsedPath.dir + '/' + this.parsedPath.base);
     let tags = {};
-    if (!this.stats.isDirectory()) {
+    if (!this.stats.isDirectory() && this.parsedPath.ext.toLowerCase() === '.mp3') {
       const buffer = await fs.readFile(this.parsedPath.dir + '/' + this.parsedPath.base);
       const mp3tag = new MP3Tag(buffer, false);
       await mp3tag.read();