set another output for stderr as it will almost always contain 'some' data

README.md

@@ -241,6 +241,8 @@ More advanced workflows may need to parse the resulting output of Wrangler comma
 
 Now when you run your workflow, you will see the full output of the Wrangler command in your workflow logs. You can also use this output in subsequent workflow steps to parse the output for specific values.
 
+> Note: the `command-stderr` output variable is also available if you need to parse the standard error output of the Wrangler command.
+
 ## Troubleshooting
 
 ### "I just started using Workers/Wrangler and I don't know what this is!"

action.yml

@@ -46,4 +46,6 @@ inputs:
     required: false
 outputs:
   command-output:
-    description: "The output of the Wrangler command"
+    description: "The output of the Wrangler command (comes from stdout)"
+  command-stderr:
+    description: "The error output of the Wrangler command (comes from stderr)"

src/index.ts

@@ -264,14 +264,9 @@ async function wranglerCommands() {
 			// Execute the wrangler command
 			await exec(`${packageManager.exec} wrangler ${command}`, args, options);
 
-			// If stdOut contains data but stdErr does not, then save the stdOut value
-			if (stdOut && (!stdErr || stdErr === "" || stdErr === undefined)) {
-				info('saving stdout to "command-output" output')
-				setOutput("command-output", stdOut);
-			} else if (stdErr) {
-				info('saving stderr to "command-output" output')
-				setOutput("command-output", stdErr);
-			}
+			// Set the outputs for the command
+			setOutput("command-output", stdOut);
+			setOutput("command-stderr", stdErr);
 		}
 	} finally {
 		endGroup();