diff-npm-packages: fix crash with ENOBUFS

Author: IvanGoncharov

resources/diff-npm-package.js

@@ -5,6 +5,8 @@ const fs = require('fs');
 const path = require('path');
 const cp = require('child_process');
 
+const { exec } = require('./utils.js');
+
 const LOCAL = 'local';
 const localRepoDir = path.join(__dirname, '..');
 const tmpDir = path.join(os.tmpdir(), 'graphql-js-npm-diff');
@@ -93,12 +95,3 @@ function prepareNPMPackage(revision) {
   exec('npm --quiet run build:npm', { cwd: repoDir });
   return path.join(repoDir, 'npmDist');
 }
-
-function exec(command, options = {}) {
-  const result = cp.execSync(command, {
-    encoding: 'utf-8',
-    stdio: ['inherit', 'pipe', 'inherit'],
-    ...options,
-  });
-  return result?.trimEnd();
-}

resources/utils.js

@@ -9,10 +9,11 @@ const prettier = require('prettier');
 function exec(command, options) {
   const output = childProcess.execSync(command, {
     maxBuffer: 10 * 1024 * 1024, // 10MB
+    stdio: ['inherit', 'pipe', 'inherit'],
     encoding: 'utf-8',
     ...options,
   });
-  return output && output.trimEnd();
+  return output?.trimEnd();
 }
 
 function readdirRecursive(dirPath, opts = {}) {