Github user hboutemy commented on a diff in the pull request:
https://github.com/apache/maven/pull/81#discussion_r66704747
--- Diff:
maven-embedder/src/main/java/org/apache/maven/cli/logging/impl/gossip/ColorRenderer.java
---
@@ -0,0 +1,165 @@
+package org.apache.maven.cli.logging.impl.gossip;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import static org.fusesource.jansi.Ansi.Attribute.INTENSITY_BOLD;
+import static org.fusesource.jansi.Ansi.Color.CYAN;
+import static org.fusesource.jansi.Ansi.Color.GREEN;
+import static org.fusesource.jansi.Ansi.Color.RED;
+import static org.fusesource.jansi.Ansi.Color.YELLOW;
+import static org.fusesource.jansi.Ansi.ansi;
+
+import com.planet57.gossip.Event;
+import com.planet57.gossip.Level;
+
+/**
+ * Specialized {@link com.planet57.gossip.render.Renderer} which is aware
of basic Maven log messages to colorize.
+ *
+ * @author <a href="mailto:ja...@planet57.com";>Jason Dillon</a>
+ * @since 3.4.0
+ */
+public class ColorRenderer
+ extends PatternRenderer
+{
+ @Override
+ protected void renderLevel( final Event event, final StringBuilder
buff )
+ {
+ assert event != null;
+ assert buff != null;
+
+ Level level = event.getLevel();
+ switch ( level )
+ {
+ case TRACE:
+ case DEBUG:
+ buff.append( ansi().a( INTENSITY_BOLD ).fg( YELLOW ).a(
level.name() ).reset() );
+ break;
+
+ case INFO:
+ buff.append( ansi().a( INTENSITY_BOLD ).fg( GREEN ).a(
level.name() ).reset() );
+ break;
+
+ case WARN:
+ // Maven uses WARNING instead of WARN
+ buff.append( ansi().a( INTENSITY_BOLD ).fg( RED ).a(
WARNING ).reset() );
+ break;
+
+ case ERROR:
+ buff.append( ansi().a( INTENSITY_BOLD ).fg( RED ).a(
level.name() ).reset() );
+ break;
+
+ default:
+ throw new InternalError();
+ }
+ }
+
+ @Override
+ protected void renderName( final Event event, final StringBuilder
buff, final boolean shortName )
+ {
+ StringBuilder tmp = new StringBuilder();
+ super.renderName( event, tmp, shortName );
+ buff.append( ansi().fg( GREEN ).a( tmp ).reset() );
+ }
+
+ @Override
+ protected void renderMessage( final Event event, final StringBuilder
buff )
+ {
+ final String message = event.getMessage();
+
+ if ( message.startsWith(
"------------------------------------------------------------------------" ) )
+ {
+ buff.append( ansi().a( INTENSITY_BOLD ).a( message ).reset() );
+ }
+ else if ( message.startsWith( "---" ) && message.endsWith( " ---"
) )
+ {
+ String[] items = message.split( "\\s" );
+ buff.append( ansi().a( INTENSITY_BOLD ).a( "---" ).reset() );
+ buff.append( " " );
+ buff.append( ansi().fg( GREEN ).a( items[1] ).reset() );
+ buff.append( " " );
+ buff.append( ansi().a( INTENSITY_BOLD ).a( items[2] ).reset()
);
+ buff.append( " @ " );
+ buff.append( ansi().fg( CYAN ).a( items[4] ).reset() );
+ buff.append( ansi().a( INTENSITY_BOLD ).a( " ---" ).reset() );
+ }
+ else if ( message.contains( "ERROR" ) || message.contains(
"FAILURE" ) || message.contains( "FAILED" ) )
+ {
+ buff.append( ansi().a( INTENSITY_BOLD ).fg( RED ).a( message
).reset() );
+ }
+ else if ( message.contains( "BUILD SUCCESS" ) )
+ {
+ buff.append( ansi().a( INTENSITY_BOLD ).fg( GREEN ).a( message
).reset() );
+ }
+ else if ( message.contains( "SUCCESS" ) )
+ {
+ buff.append( ansi().fg( GREEN ).a( message ).reset() );
+ }
+ else
+ {
+ buff.append( message );
+ }
+ }
+
+ @Override
+ protected void renderCause( final Event event, final StringBuilder
buff )
+ {
+ assert event != null;
+ assert buff != null;
+
+ Throwable cause = event.getCause();
+ if ( cause == null )
+ {
+ return;
+ }
+
+ buff.append( ansi().a( INTENSITY_BOLD ).fg( RED ).a(
cause.getClass().getName() ).reset() );
+ if ( cause.getMessage() != null )
+ {
+ buff.append( ": " );
+ buff.append( ansi().a( INTENSITY_BOLD ).fg( RED ).a(
cause.getMessage() ).reset() );
+ }
+ renderNewLine( buff );
+
+ while ( cause != null )
+ {
+ for ( StackTraceElement e : cause.getStackTrace() )
+ {
+ buff.append( " " );
+ buff.append( ansi().a( INTENSITY_BOLD ).a( "at"
).reset().a( " " )
+ .a( e.getClassName() ).a( "." ).a(
e.getMethodName() ) );
+ buff.append( ansi().a( " (" ).a( INTENSITY_BOLD ).a(
getLocation( e ) ).reset().a( ")" ) );
+ renderNewLine( buff );
+ }
+
+ cause = cause.getCause();
+ if ( cause != null )
+ {
+ buff.append( ansi().a( INTENSITY_BOLD ).a( "Caused by"
).reset().a( " " )
--- End diff --
should be a( "Caused by" ).reset().a( ": " )
fixed while merging in Maven
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