Enable auto-flushing of output to fix testfeed details mode

Author: marcphilipp

gradle/plugins/common/src/main/kotlin/junitbuild/exec/RunConsoleLauncher.kt

@@ -6,7 +6,13 @@ import org.gradle.api.file.ConfigurableFileCollection
 import org.gradle.api.plugins.JavaPluginExtension
 import org.gradle.api.provider.ListProperty
 import org.gradle.api.provider.Property
-import org.gradle.api.tasks.*
+import org.gradle.api.tasks.CacheableTask
+import org.gradle.api.tasks.Classpath
+import org.gradle.api.tasks.Input
+import org.gradle.api.tasks.Internal
+import org.gradle.api.tasks.Nested
+import org.gradle.api.tasks.SourceSetContainer
+import org.gradle.api.tasks.TaskAction
 import org.gradle.api.tasks.options.Option
 import org.gradle.jvm.toolchain.JavaLauncher
 import org.gradle.jvm.toolchain.JavaToolchainService
@@ -16,7 +22,6 @@ import org.gradle.process.CommandLineArgumentProvider
 import org.gradle.process.ExecOperations
 import trackOperationSystemAsInput
 import java.io.ByteArrayOutputStream
-import java.util.*
 import javax.inject.Inject
 
 @CacheableTask
@@ -97,4 +102,13 @@ abstract class RunConsoleLauncher @Inject constructor(private val execOperations
         debugging.set(enabled)
     }
 
+    @Suppress("unused")
+    @Option(
+        option = "show-output",
+        description = "Show output"
+    )
+    fun setShowOutput(showOutput: Boolean) {
+        hideOutput.set(!showOutput)
+    }
+
 }

junit-platform-console/src/main/java/org/junit/platform/console/ConsoleLauncher.java

@@ -30,9 +30,7 @@
 public class ConsoleLauncher {
 
 	public static void main(String... args) {
-		PrintWriter out = new PrintWriter(System.out);
-		PrintWriter err = new PrintWriter(System.err);
-		CommandResult<?> result = run(out, err, args);
+		CommandResult<?> result = run(null, null, args);
 		System.exit(result.getExitCode());
 	}
 
@@ -57,8 +55,12 @@ CommandResult<?> run(String... args) {
 			return new CommandFacade(consoleTestExecutorFactory).run(out, err, args);
 		}
 		finally {
-			out.flush();
-			err.flush();
+			if (out != null) {
+				out.flush();
+			}
+			if (err != null) {
+				err.flush();
+			}
 		}
 	}
 

junit-platform-console/src/main/java/org/junit/platform/console/options/MainCommand.java

@@ -144,10 +144,14 @@ private static CommandResult<?> runCommand(PrintWriter out, PrintWriter err, Str
 
 	private static CommandResult<Object> runCommand(PrintWriter out, PrintWriter err, String[] args,
 			CommandLine commandLine) {
-		int exitCode = BaseCommand.initialize(commandLine) //
-				.setOut(out) //
-				.setErr(err) //
-				.execute(args);
+		commandLine = BaseCommand.initialize(commandLine);
+		if (out != null) {
+			commandLine = commandLine.setOut(out);
+		}
+		if (err != null) {
+			commandLine = commandLine.setErr(err);
+		}
+		int exitCode = commandLine.execute(args);
 		return CommandResult.create(exitCode, getLikelyExecutedCommand(commandLine).getExecutionResult());
 	}