修复mac和linux兼容性

back/config/util.ts

@@ -2,6 +2,7 @@ import * as fs from 'fs';
 import * as path from 'path';
 import got from 'got';
 import iconv from 'iconv-lite';
+import { exec } from 'child_process';
 
 export function getFileContentByName(fileName: string) {
   if (fs.existsSync(fileName)) {
@@ -332,3 +333,15 @@ export function readDir(
     });
   return result;
 }
+
+export function promiseExec(command: string): Promise<string> {
+  return new Promise((resolve, reject) => {
+    exec(
+      command,
+      { maxBuffer: 200 * 1024 * 1024, encoding: 'utf8' },
+      (err, stdout, stderr) => {
+        resolve(stdout || stderr || JSON.stringify(err));
+      },
+    );
+  });
+}