Add property 'mvnd.preserveProjectLog' to not decorate the stdout/stderr stream

client/src/main/java-mvnd/org/mvndaemon/mvnd/client/DefaultClient.java

@@ -148,7 +148,8 @@ public static void main(String[] argv) throws Exception {
 
         int exitCode = 0;
         boolean noBuffering = batchMode || parameters.noBuffering();
-        try (TerminalOutput output = new TerminalOutput(noBuffering, parameters.rollingWindowSize(), logFile)) {
+        try (TerminalOutput output = new TerminalOutput(
+                noBuffering, parameters.rollingWindowSize(), logFile, parameters.preserveProjectLog())) {
             try {
                 final ExecutionResult result = new DefaultClient(parameters).execute(output, args);
                 exitCode = result.getExitCode();

client/src/main/java/org/mvndaemon/mvnd/client/DaemonParameters.java

@@ -320,6 +320,16 @@ public boolean serial() {
         return value(Environment.SERIAL).orSystemProperty().orDefault().asBoolean();
     }
 
+    /**
+     * @return <code>true</code> if the stdout/stderr project log should be preserved.
+     */
+    public boolean preserveProjectLog() {
+        return value(Environment.MVND_PRESERVE_PROJECT_LOG)
+                .orSystemProperty()
+                .orDefault()
+                .asBoolean();
+    }
+
     /**
      * @param  newUserDir where to change the current directory to
      * @return            a new {@link DaemonParameters} with {@code userDir} set to the given {@code newUserDir}

common/src/main/java/org/mvndaemon/mvnd/common/Environment.java

@@ -122,6 +122,8 @@ public enum Environment {
     MAVEN_DEFINE(null, null, null, OptionType.STRING, Flags.INTERNAL, "mvn:-D", "mvn:--define"),
     /** Whether the output should be styled using ANSI color codes; possible values: auto, always, never */
     MAVEN_COLOR("style.color", null, "auto", OptionType.STRING, Flags.OPTIONAL, "mvnd:--color"),
+    /** Keep stdout/stderr log undecorated when not in --raw-streams mode. */
+    MVND_PRESERVE_PROJECT_LOG("mvnd.preserveProjectLog", null, Boolean.FALSE, OptionType.BOOLEAN, Flags.OPTIONAL),
 
     //
     // mvnd properties

common/src/main/java/org/mvndaemon/mvnd/common/logging/TerminalOutput.java

@@ -36,6 +36,7 @@
 import java.util.concurrent.locks.ReadWriteLock;
 import java.util.concurrent.locks.ReentrantReadWriteLock;
 import java.util.function.Consumer;
+import java.util.regex.Pattern;
 import java.util.stream.Collector;
 import java.util.stream.Collectors;
 
@@ -96,6 +97,8 @@ public class TerminalOutput implements ClientOutput {
     private static final AttributedStyle GREEN_FOREGROUND = new AttributedStyle().foreground(AttributedStyle.GREEN);
     private static final AttributedStyle CYAN_FOREGROUND = new AttributedStyle().foreground(AttributedStyle.CYAN);
 
+    private static final Pattern PROJECT_LOG_DECO_PATTERN = Pattern.compile("^\\[[^\\]]*\\] \\[(stdout|stderr)\\] ");
+
     private final Terminal terminal;
     private final Terminal.SignalHandler previousIntHandler;
     private final Display display;
@@ -140,6 +143,7 @@ public class TerminalOutput implements ClientOutput {
     private String buildStatus;
     private boolean displayDone = false;
     private boolean noBuffering;
+    private boolean preserveProjectLog;
 
     /**
      * {@link Project} is owned by the display loop thread and is accessed only from there. Therefore it does not need
@@ -155,7 +159,8 @@ public Project(String id) {
         }
     }
 
-    public TerminalOutput(boolean noBuffering, int rollingWindowSize, Path logFile) throws IOException {
+    public TerminalOutput(boolean noBuffering, int rollingWindowSize, Path logFile, boolean preserveProjectLog)
+            throws IOException {
         this.start = System.currentTimeMillis();
         TerminalBuilder builder = TerminalBuilder.builder();
         boolean outRedirected = CLibrary.isatty(1) == 0;
@@ -165,6 +170,7 @@ public TerminalOutput(boolean noBuffering, int rollingWindowSize, Path logFile)
         this.terminal = builder.build();
         this.dumb = terminal.getType().startsWith("dumb");
         this.noBuffering = noBuffering;
+        this.preserveProjectLog = preserveProjectLog;
         this.linesPerProject = rollingWindowSize;
         terminal.enterRawMode();
         Thread mainThread = Thread.currentThread();
@@ -380,18 +386,19 @@ private boolean doAccept(Message entry) {
             case Message.PROJECT_LOG_MESSAGE: {
                 final ProjectEvent bm = (ProjectEvent) entry;
                 final Project prj = projects.get(bm.getProjectId());
+                String msg = bm.getMessage();
+                if (preserveProjectLog) {
+                    msg = PROJECT_LOG_DECO_PATTERN.matcher(msg).replaceFirst("");
+                }
                 if (prj == null) {
-                    log.accept(bm.getMessage());
+                    log.accept(msg);
                 } else if (noBuffering || dumb) {
-                    String msg;
                     if (maxThreads > 1) {
-                        msg = String.format("[%s] %s", bm.getProjectId(), bm.getMessage());
-                    } else {
-                        msg = bm.getMessage();
+                        msg = String.format("[%s] %s", bm.getProjectId(), msg);
                     }
                     log.accept(msg);
                 } else {
-                    prj.log.add(bm.getMessage());
+                    prj.log.add(msg);
                 }
                 break;
             }