[MNG-6093] use monkey patched slf4j-simple provider with Maven color

apache-maven/pom.xml

@@ -88,8 +88,8 @@
       <artifactId>aether-transport-wagon</artifactId>
     </dependency>
     <dependency>
-      <groupId>org.slf4j</groupId>
+      <groupId>org.apache.maven</groupId>
-      <artifactId>slf4j-simple</artifactId>
+      <artifactId>maven-slf4j-provider</artifactId>
     </dependency>
     <dependency>
       <groupId>org.fusesource.jansi</groupId>

maven-embedder/src/main/resources/META-INF/maven/slf4j-configuration.properties

@@ -18,5 +18,6 @@
 # key = Slf4j effective logger factory implementation
 # value = corresponding o.a.m.cli.logging.Slf4jConfiguration class
 org.slf4j.impl.SimpleLoggerFactory org.apache.maven.cli.logging.impl.Slf4jSimpleConfiguration
+org.slf4j.impl.MavenSimpleLoggerFactory org.apache.maven.cli.logging.impl.Slf4jSimpleConfiguration
 org.slf4j.helpers.Log4jLoggerFactory org.apache.maven.cli.logging.impl.Log4j2Configuration
 ch.qos.logback.classic.LoggerContext org.apache.maven.cli.logging.impl.LogbackConfiguration

maven-slf4j-provider/pom.xml

@@ -0,0 +1,116 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+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.
+-->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.apache.maven</groupId>
+    <artifactId>maven</artifactId>
+    <version>3.5.0-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>maven-slf4j-provider</artifactId>
+
+  <name>Maven SLF4J Simple Provider</name>
+  <description>
+    Maven SLF4J provider based on SLF4J's simple provider, monkey-patched to support Maven styled colors
+    for levels and stacktraces rendering.
+  </description>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-api</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.maven.shared</groupId>
+      <artifactId>maven-shared-utils</artifactId>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <configuration>
+          <artifactItems>
+            <artifactItem>
+              <groupId>org.slf4j</groupId>
+              <artifactId>slf4j-simple</artifactId>
+              <version>${slf4jVersion}</version>
+              <type>jar</type>
+              <classifier>sources</classifier>
+              <overWrite>false</overWrite>
+              <outputDirectory>${project.build.directory}/generated-sources/slf4j-simple</outputDirectory>
+              <includes>org/slf4j/impl/*.java</includes>
+            </artifactItem>
+          </artifactItems>
+        </configuration>
+        <executions>
+          <execution>
+            <id>unzip-slf4j-simple</id>
+            <goals>
+              <goal>unpack</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>build-helper-maven-plugin</artifactId>
+        <version>1.12</version>
+        <executions>
+          <execution>
+            <id>add-slf4j-simple</id>
+            <phase>generate-sources</phase>
+            <goals>
+              <goal>add-source</goal>
+            </goals>
+            <configuration>
+              <sources>
+                <source>${project.build.directory}/generated-sources/slf4j-simple</source>
+              </sources>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.codehaus.gmaven</groupId>
+        <artifactId>groovy-maven-plugin</artifactId>
+        <version>2.0</version>
+        <executions>
+          <execution>
+            <id>patch-slf4j-simple</id>
+            <phase>process-sources</phase>
+            <goals>
+              <goal>execute</goal>
+            </goals>
+            <configuration>
+              <source>${project.basedir}/src/main/script/patch-slf4j-simple.groovy</source>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>

maven-slf4j-provider/src/main/java/org/slf4j/impl/MavenSimpleLogger.java

@@ -0,0 +1,115 @@
+package org.slf4j.impl;
+
+/*
+ * 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.apache.maven.shared.utils.logging.MessageUtils.buffer;
+
+import java.io.PrintStream;
+
+/**
+ * Logger for Maven, that support colorization of levels and stacktraces.
+ * This class implements 2 methods introduced in slf4j-simple provider local copy.
+ * @since 3.5.0
+ */
+public class MavenSimpleLogger
+    extends SimpleLogger
+{
+    MavenSimpleLogger( String name )
+    {
+        super( name );
+    }
+
+    @Override
+    protected String renderLevel( int level )
+    {
+        switch ( level )
+        {
+            case LOG_LEVEL_TRACE:
+                return buffer().debug( "TRACE" ).toString();
+            case LOG_LEVEL_DEBUG:
+                return buffer().debug( "DEBUG" ).toString();
+            case LOG_LEVEL_INFO:
+                return buffer().info( "INFO" ).toString();
+            case LOG_LEVEL_WARN:
+                return buffer().warning( "WARNING" ).toString();
+            case LOG_LEVEL_ERROR:
+            default:
+                return buffer().error( "ERROR" ).toString();
+        }
+    }
+
+    @Override
+    protected void renderThrowable( Throwable t, PrintStream stream )
+    {
+        stream.print( buffer().failure( t.getClass().getName() ) );
+        if ( t.getMessage() != null )
+        {
+            stream.print( ": " );
+            stream.print( buffer().failure( t.getMessage() ) );
+        }
+        stream.println();
+
+        while ( t != null )
+        {
+            for ( StackTraceElement e : t.getStackTrace() )
+            {
+                stream.print( "    " );
+                stream.print( buffer().strong( "at" ) );
+                stream.print( " " + e.getClassName() + "." + e.getMethodName() );
+                stream.print( buffer().a( " (" ).strong( getLocation( e ) ).a( ")" ) );
+                stream.println();
+            }
+
+            t = t.getCause();
+            if ( t != null )
+            {
+                stream.print( buffer().strong( "Caused by" ).a( ": " ).a( t.getClass().getName() ) );
+                if ( t.getMessage() != null )
+                {
+                    stream.print( ": " );
+                    stream.print( buffer().failure( t.getMessage() ) );
+                }
+                stream.println();
+            }
+        }
+    }
+
+    protected String getLocation( final StackTraceElement e )
+    {
+        assert e != null;
+
+        if ( e.isNativeMethod() )
+        {
+            return "Native Method";
+        }
+        else if ( e.getFileName() == null )
+        {
+            return "Unknown Source";
+        }
+        else if ( e.getLineNumber() >= 0 )
+        {
+            return String.format( "%s:%s", e.getFileName(), e.getLineNumber() );
+        }
+        else
+        {
+            return e.getFileName();
+        }
+    }
+}

maven-slf4j-provider/src/main/java/org/slf4j/impl/MavenSimpleLoggerFactory.java

@@ -0,0 +1,44 @@
+package org.slf4j.impl;
+
+/*
+ * 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 org.slf4j.Logger;
+
+public class MavenSimpleLoggerFactory
+    extends SimpleLoggerFactory
+{
+    /**
+     * Return an appropriate {@link MavenSimpleLogger} instance by name.
+     */
+    public Logger getLogger( String name )
+    {
+        Logger simpleLogger = loggerMap.get( name );
+        if ( simpleLogger != null )
+        {
+            return simpleLogger;
+        }
+        else
+        {
+            Logger newInstance = new MavenSimpleLogger( name );
+            Logger oldInstance = loggerMap.putIfAbsent( name, newInstance );
+            return oldInstance == null ? newInstance : oldInstance;
+        }
+    }
+}

maven-slf4j-provider/src/main/script/patch-slf4j-simple.groovy

@@ -0,0 +1,53 @@
+
+/*
+ * 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.
+ */
+
+dir = new File( basedir, 'target/generated-sources/slf4j-simple/org/slf4j/impl' );
+
+file = new File( dir, 'StaticLoggerBinder.java' );
+content = file.text;
+
+// check if already patched
+if ( content.contains( 'MavenSimpleLoggerFactory' ) )
+{
+  println '    slf4j-simple already patched';
+  return;
+}
+
+
+println '    patching StaticLoggerBinder.java';
+content = content.replaceAll( 'SimpleLoggerFactory', 'MavenSimpleLoggerFactory' );
+file.write( content );
+
+
+println '    patching SimpleLogger.java';
+file = new File( dir, 'SimpleLogger.java' );
+content = file.text;
+content = content.replaceAll( 'private static final int LOG_LEVEL_', 'protected static final int LOG_LEVEL_' );
+content = content.replaceAll( 't.printStackTrace(TARGET_STREAM)', 'renderThrowable(t, TARGET_STREAM);' );
+
+index = content.indexOf( 'switch (level) {' );
+end = content.indexOf( '}', index ) + 1;
+content = content.substring( 0, index ) + 'buf.append(renderLevel(level));' + content.substring( end );
+
+content = content.substring( 0, content.lastIndexOf( '}' ) );
+content += '  protected void renderThrowable(Throwable t, PrintStream stream) {}\n';
+content += '  protected String renderLevel(int level) { return ""; }\n}\n';
+
+file.write( content );

maven-slf4j-provider/src/site/site.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+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.
+-->
+
+<project xmlns="http://maven.apache.org/DECORATION/1.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/DECORATION/1.0.0 http://maven.apache.org/xsd/decoration-1.0.0.xsd">
+  <body>
+    <menu name="Overview">
+      <item name="Introduction" href="index.html"/>
+      <item name="JavaDocs" href="apidocs/index.html"/>
+      <item name="Source Xref" href="xref/index.html"/>
+      <!--item name="FAQ" href="faq.html"/-->
+    </menu>
+
+    <menu ref="parent"/>
+    <menu ref="reports"/>
+  </body>
+</project>

pom.xml

@@ -84,6 +84,7 @@
     <module>maven-artifact</module>
     <module>maven-aether-provider</module>
     <module>maven-repository-metadata</module>
+    <module>maven-slf4j-provider</module>
     <module>maven-embedder</module>
     <module>maven-compat</module>
     <module>apache-maven</module>
@@ -217,6 +218,11 @@
         <artifactId>maven-builder-support</artifactId>
         <version>${project.version}</version>
       </dependency>
+      <dependency>
+        <groupId>org.apache.maven</groupId>
+        <artifactId>maven-slf4j-provider</artifactId>
+        <version>${project.version}</version>
+      </dependency>
       <!--bootstrap-end-comment-->
       <!--  Plexus -->
       <dependency>

src/site/xdoc/index.xml

@@ -55,6 +55,8 @@
           <area shape="rect" coords="446,234,537,269" alt="maven-settings" href="maven-settings/" />
           <area shape="rect" coords="388,284,521,319" alt="maven-model-builder" href="maven-model-builder/" />
           <area shape="rect" coords="409,342,500,378" alt="maven-model" href="maven-model/" />
+          <area shape="rect" coords="TODO"            alt="maven-slf4j-provider" href="maven-slf4j-provider/" />
+          <area shape="rect" coords="88,59,192,94"    alt="slf4j-api" href="http://www.slf4j.org/manual.html" />
           <area shape="rect" coords="551,58,707,94"   alt="commons-cli" href="http://commons.apache.org/cli/" />
           <area shape="rect" coords="551,116,739,152" alt="wagon-provider-api" href="http://maven.apache.org/wagon/wagon-provider-api/" />
           <area shape="rect" coords="550,175,690,211" alt="plexus-sec-dispatcher" href="https://github.com/codehaus-plexus/plexus-sec-dispatcher" />