sys: print stack trace if NODE_DEBUG=sys

13 years ago · 5fea00581b
1 changed files with 4 additions and 1 deletions
--- a/lib/sys.js
+++ b/lib/sys.js
@ -25,7 +25,10 @@ var sysWarning;
 if (!sysWarning) {
  sysWarning = 'The "sys" module is now called "util". ' +
               'It should have a similar interface.';
-  util.error(sysWarning);
+  if (process.env.NODE_DEBUG && process.env.NODE_DEBUG.indexOf('sys') != -1)
+    console.trace(sysWarning);
+  else
+    console.error(sysWarning);
 }

 exports.print = util.print;