simplify "Compiling" info message: display relative path

Author: hboutemy

plexus-compilers/plexus-compiler-aspectj/src/main/java/org/codehaus/plexus/compiler/ajc/AspectJCompiler.java

@@ -320,9 +320,11 @@ public CompilerResult performCompile( CompilerConfiguration config )
             return new CompilerResult();
         }
 
+    	String to = ( config.getWorkingDirectory() == null ) ? config.getOutputLocation() :
+    		config.getWorkingDirectory().toPath().relativize( destinationDir.toPath() ).toString();
         System.out.println(
             "Compiling " + sourceFiles.length + " " + "source file" + ( sourceFiles.length == 1 ? "" : "s" ) + " to "
-                + destinationDir.getAbsolutePath() );
+                + to );
 
         //        String[] args = buildCompilerArguments( config, sourceFiles );
         AjBuildConfig buildConfig = buildCompilerConfig( config );

plexus-compilers/plexus-compiler-javac/src/main/java/org/codehaus/plexus/compiler/javac/JavacCompiler.java

@@ -143,9 +143,11 @@ public CompilerResult performCompile( CompilerConfiguration config )
 
         if ( ( getLogger() != null ) && getLogger().isInfoEnabled() )
         {
+        	String to = ( config.getWorkingDirectory() == null ) ? config.getOutputLocation() :
+        		config.getWorkingDirectory().toPath().relativize( destinationDir.toPath() ).toString();
             getLogger().info( "Compiling " + sourceFiles.length + " " +
                                   "source file" + ( sourceFiles.length == 1 ? "" : "s" ) +
-                                  " to " + destinationDir.getAbsolutePath() );
+                                  " to " + to );
         }
 
         String[] args = buildCompilerArguments( config, sourceFiles );