process: do not truncate long strings in --print

mohd-akram · aduh95 · commit b861451d5718 · 2026-01-28T19:35:54.000+01:00
Fixes: #61337 PR-URL: #61497 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
diff --git a/lib/internal/process/execution.js b/lib/internal/process/execution.js
@@ -455,8 +455,12 @@ function runScriptInContext(name, body, breakFirstLine, print, module, baseUrl,
   if (print) {
     const { log } = require('internal/console/global');
 
-    process.on('exit', () => {
-      log(result);
+    const printResult = () => log(result);
+
+    process.on('exit', printResult);
+    process.once('beforeExit', () => {
+      printResult();
+      process.off('exit', printResult);
     });
   }
   if (origModule !== undefined)
diff --git a/test/parallel/test-cli-eval.js b/test/parallel/test-cli-eval.js
@@ -115,6 +115,12 @@ child.exec(...common.escapePOSIXShell`"${process.execPath}" -p "\\-42"`, common.
   assert.strictEqual(stderr, '');
 }));
 
+// Long output should not be truncated.
+child.exec(...common.escapePOSIXShell`"${process.execPath}" -p "'1'.repeat(1e5)"`, common.mustSucceed((stdout, stderr) => {
+  assert.strictEqual(stdout, `${'1'.repeat(1e5)}\n`);
+  assert.strictEqual(stderr, '');
+}));
+
 child.exec(...common.escapePOSIXShell`"${process.execPath}" --use-strict -p process.execArgv`,
            common.mustSucceed((stdout, stderr) => {
              assert.strictEqual(
