[MPLUGIN-360] generated plugin-help.xml ignores descriptor mojo outputDirectory

Author: rfscholte

maven-plugin-plugin/src/main/java/org/apache/maven/plugin/plugin/DescriptorGeneratorMojo.java

@@ -50,7 +50,7 @@ public class DescriptorGeneratorMojo
     /**
      * The directory where the generated <code>plugin.xml</code> file will be put.
      */
-    @Parameter( defaultValue = "${project.build.outputDirectory}/META-INF/maven" )
+    @Parameter( defaultValue = "${project.build.outputDirectory}/META-INF/maven", readonly = true )
     protected File outputDirectory;
 
     /**

maven-plugin-tools-generators/src/main/java/org/apache/maven/tools/plugin/generator/PluginDescriptorGenerator.java

@@ -41,7 +41,6 @@
 import org.apache.maven.tools.plugin.ExtendedMojoDescriptor;
 import org.apache.maven.tools.plugin.PluginToolsRequest;
 import org.apache.maven.tools.plugin.util.PluginUtils;
-import org.codehaus.plexus.util.IOUtil;
 import org.codehaus.plexus.util.StringUtils;
 import org.codehaus.plexus.util.xml.PrettyPrintXMLWriter;
 import org.codehaus.plexus.util.xml.XMLWriter;
@@ -62,9 +61,7 @@ public PluginDescriptorGenerator( Log log )
         this.log = log;
     }
 
-    /**
-     * {@inheritDoc}
-     */
+    @Override
     public void execute( File destinationDirectory, PluginToolsRequest request )
         throws GeneratorException
     {
@@ -80,7 +77,7 @@ public void execute( File destinationDirectory, PluginToolsRequest request )
             // write plugin-help.xml help-descriptor
             MavenProject mavenProject = request.getProject();
 
-            f = new File( mavenProject.getBuild().getOutputDirectory(),
+            f = new File( destinationDirectory,
                           PluginHelpGenerator.getPluginHelpPath( mavenProject ) );
 
             writeDescriptor( f, request, true );
@@ -111,19 +108,13 @@ public void writeDescriptor( File destinationFile, PluginToolsRequest request, b
         {
             destinationFile.delete();
         }
-        else
+        else if ( !destinationFile.getParentFile().exists() )
         {
-            if ( !destinationFile.getParentFile().exists() )
-            {
-                destinationFile.getParentFile().mkdirs();
-            }
+            destinationFile.getParentFile().mkdirs();
         }
 
-        Writer writer = null;
-        try
+        try ( Writer writer = new OutputStreamWriter( new FileOutputStream( destinationFile ), UTF_8 ) )
         {
-            writer = new OutputStreamWriter( new FileOutputStream( destinationFile ), UTF_8 );
-
             XMLWriter w = new PrettyPrintXMLWriter( writer, UTF_8.name(), null );
 
             w.writeMarkup( "\n<!-- Generated by maven-plugin-tools " + getVersion() + " -->\n\n" );
@@ -154,7 +145,7 @@ public void writeDescriptor( File destinationFile, PluginToolsRequest request, b
 
             if ( pluginDescriptor.getMojos() != null )
             {
-                @SuppressWarnings( "unchecked" ) List<MojoDescriptor> descriptors = pluginDescriptor.getMojos();
+                List<MojoDescriptor> descriptors = pluginDescriptor.getMojos();
 
                 PluginUtils.sortMojos( descriptors );
 
@@ -176,10 +167,6 @@ public void writeDescriptor( File destinationFile, PluginToolsRequest request, b
             writer.flush();
 
         }
-        finally
-        {
-            IOUtil.close( writer );
-        }
     }
 
     protected void processMojoDescriptor( MojoDescriptor mojoDescriptor, XMLWriter w )

maven-plugin-tools-generators/src/main/java/org/apache/maven/tools/plugin/generator/PluginHelpGenerator.java

@@ -267,7 +267,7 @@ else if ( !tmpPropertiesFile.getParentFile().exists() )
 
     static String getPluginHelpPath( MavenProject mavenProject )
     {
-        return "META-INF/maven/" + mavenProject.getGroupId() + "/" + mavenProject.getArtifactId() + "/plugin-help.xml";
+        return mavenProject.getGroupId() + "/" + mavenProject.getArtifactId() + "/plugin-help.xml";
     }
 
     /**

maven-plugin-tools-generators/src/main/resources/help-class-source.vm

@@ -103,9 +103,9 @@ public class HelpMojo
 #end
     private int indentSize;
 
-    // groupId/artifactId/plugin-help.xml
+    // /META-INF/maven/<groupId>/<artifactId>/plugin-help.xml
     private static final String PLUGIN_HELP_PATH =
-                    "/${pluginHelpPath}";
+                    "/META-INF/maven/${pluginHelpPath}";
 
     private static final int DEFAULT_LINE_LENGTH = 80;