package org.apache.maven;

 /*

  * 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.apache.maven.artifact.manager.WagonManager;

 import org.apache.maven.artifact.repository.ArtifactRepository;

 import org.apache.maven.artifact.resolver.ArtifactResolutionException;

 import org.apache.maven.artifact.versioning.DefaultArtifactVersion;

 import org.apache.maven.execution.BuildFailure;

 import org.apache.maven.execution.DefaultMavenExecutionRequest;

 import org.apache.maven.execution.MavenExecutionRequest;

 import org.apache.maven.execution.MavenSession;

 import org.apache.maven.execution.ReactorManager;

 import org.apache.maven.execution.RuntimeInformation;

 import org.apache.maven.lifecycle.LifecycleExecutionException;

 import org.apache.maven.lifecycle.LifecycleExecutor;

 import org.apache.maven.model.Profile;

 import org.apache.maven.monitor.event.DefaultEventDispatcher;

 import org.apache.maven.monitor.event.EventDispatcher;

 import org.apache.maven.monitor.event.MavenEvents;

 import org.apache.maven.profiles.ProfileManager;

 import org.apache.maven.profiles.activation.ProfileActivationException;

 import org.apache.maven.project.DefaultProjectBuilderConfiguration;

 import org.apache.maven.project.DuplicateProjectException;

 import org.apache.maven.project.MavenProject;

 import org.apache.maven.project.MavenProjectBuilder;

 import org.apache.maven.project.ProjectBuilderConfiguration;

 import org.apache.maven.project.ProjectBuildingException;

 import org.apache.maven.reactor.MavenExecutionException;

 import org.apache.maven.settings.Mirror;

 import org.apache.maven.settings.Proxy;

 import org.apache.maven.settings.Server;

 import org.apache.maven.settings.Settings;

 import org.apache.maven.usability.SystemWarnings;

 import org.apache.maven.usability.diagnostics.ErrorDiagnostics;

 import org.apache.maven.wagon.repository.RepositoryPermissions;

 import org.codehaus.plexus.PlexusConstants;

 import org.codehaus.plexus.PlexusContainer;

 import org.codehaus.plexus.component.repository.exception.ComponentLifecycleException;

 import org.codehaus.plexus.component.repository.exception.ComponentLookupException;

 import org.codehaus.plexus.context.Context;

 import org.codehaus.plexus.context.ContextException;

 import org.codehaus.plexus.logging.AbstractLogEnabled;

 import org.codehaus.plexus.personality.plexus.lifecycle.phase.Contextualizable;

 import org.codehaus.plexus.util.FileUtils;

 import org.codehaus.plexus.util.Os;

 import org.codehaus.plexus.util.StringUtils;

 import org.codehaus.plexus.util.dag.CycleDetectedException;

 import org.codehaus.plexus.util.xml.Xpp3Dom;

 import java.io.File;

 import java.io.IOException;

 import java.text.DateFormat;

 import java.text.SimpleDateFormat;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.Date;

 import java.util.HashSet;

 import java.util.Iterator;

 import java.util.List;

 import java.util.Properties;

 import java.util.Set;

 import java.util.TimeZone;

 /**

  * @author <a href="mailto:jason@maven.org">Jason van Zyl </a>

  * @version $Id: DefaultMaven.java 753094 2009-03-13 02:43:57Z brett $

  */

 public class DefaultMaven

     extends AbstractLogEnabled

     implements Maven, Contextualizable

 {

     // ----------------------------------------------------------------------

     // Components

     // ----------------------------------------------------------------------

     protected MavenProjectBuilder projectBuilder;

     protected LifecycleExecutor lifecycleExecutor;

     protected PlexusContainer container;

     protected ErrorDiagnostics errorDiagnostics;

     protected RuntimeInformation runtimeInformation;

     private static final long MB = 1024 * 1024;

     private static final int MS_PER_SEC = 1000;

     private static final int SEC_PER_MIN = 60;

     // ----------------------------------------------------------------------

     // Project execution

     // ----------------------------------------------------------------------

     public void execute( MavenExecutionRequest request )

         throws MavenExecutionException

     {

 //        if ( request.getLocalRepository() == null )

 //        {

 //            request.setLocalRepository( mavenTools.createLocalRepository( request.getLocalRepositoryPath() ) );

 //        }

         EventDispatcher dispatcher = request.getEventDispatcher();

         String event = MavenEvents.REACTOR_EXECUTION;

         dispatcher.dispatchStart( event, request.getBaseDirectory() );

         ReactorManager rm;

         try

         {

             rm = doExecute( request, dispatcher );

         }

         catch ( LifecycleExecutionException e )

         {

             dispatcher.dispatchError( event, request.getBaseDirectory(), e );

             logError( e, request.isShowErrors() );

             stats( request.getStartTime() );

             line();

             throw new MavenExecutionException( e.getMessage(), e );

         }

         catch ( BuildFailureException e )

         {

             dispatcher.dispatchError( event, request.getBaseDirectory(), e );

             logFailure( e, request.isShowErrors() );

             stats( request.getStartTime() );

             line();

             throw new MavenExecutionException( e.getMessage(), e );

         }

         catch ( Throwable t )

         {

             dispatcher.dispatchError( event, request.getBaseDirectory(), t );

             logFatal( t );

             stats( request.getStartTime() );

             line();

             throw new MavenExecutionException( "Error executing project within the reactor", t );

         }

         // Either the build was successful, or it was a fail_at_end/fail_never reactor build

         // TODO: should all the logging be left to the CLI?

         logReactorSummary( rm );

         if ( rm.hasBuildFailures() )

         {

             logErrors( rm, request.isShowErrors() );

             if ( !ReactorManager.FAIL_NEVER.equals( rm.getFailureBehavior() ) )

             {

                 dispatcher.dispatchError( event, request.getBaseDirectory(), null );

                 getLogger().info( "BUILD ERRORS" );

                 line();

                 stats( request.getStartTime() );

                 line();

                 throw new MavenExecutionException( "Some builds failed" );

             }

             else

             {

                 getLogger().info( " + Ignoring failures" );

             }

         }

         logSuccess( rm );

         stats( request.getStartTime() );

         line();

         dispatcher.dispatchEnd( event, request.getBaseDirectory() );

     }

     private void logErrors( ReactorManager rm, boolean showErrors )

     {

         for ( Iterator it = rm.getSortedProjects().iterator(); it.hasNext(); )

         {

             MavenProject project = (MavenProject) it.next();

             if ( rm.hasBuildFailure( project ) )

             {

                 BuildFailure buildFailure = rm.getBuildFailure( project );

                 getLogger().info(

                     "Error for project: " + project.getName() + " (during " + buildFailure.getTask() + ")" );

                 line();

                 logDiagnostics( buildFailure.getCause() );

                 logTrace( buildFailure.getCause(), showErrors );

             }

         }

         if ( !showErrors )

         {

             getLogger().info( "For more information, run Maven with the -e switch" );

             line();

         }

     }

     private ReactorManager doExecute( MavenExecutionRequest request, EventDispatcher dispatcher )

         throws MavenExecutionException, BuildFailureException, LifecycleExecutionException

     {

         if ( request.getSettings().isOffline() )

         {

             getLogger().info( SystemWarnings.getOfflineWarning() );

             WagonManager wagonManager = null;

             try

             {

                 wagonManager = (WagonManager) container.lookup( WagonManager.ROLE );

                 wagonManager.setOnline( false );

             }

             catch ( ComponentLookupException e )

             {

                 throw new MavenExecutionException( "Cannot retrieve WagonManager in order to set offline mode.", e );

             }

             finally

             {

                 try

                 {

                     container.release( wagonManager );

                 }

                 catch ( ComponentLifecycleException e )

                 {

                     getLogger().warn( "Cannot release WagonManager.", e );

                 }

             }

         }

         try

         {

             resolveParameters( request.getSettings() );

         }

         catch ( ComponentLookupException e )

         {

             throw new MavenExecutionException( "Unable to configure Maven for execution", e );

         }

         catch ( ComponentLifecycleException e )

         {

             throw new MavenExecutionException( "Unable to configure Maven for execution", e );

         }

         catch ( SettingsConfigurationException e )

         {

             throw new MavenExecutionException( "Unable to configure Maven for execution", e );

         }

         ProfileManager globalProfileManager = request.getGlobalProfileManager();

         globalProfileManager.loadSettingsProfiles( request.getSettings() );

         getLogger().info( "Scanning for projects..." );

         boolean foundProjects = true;

         List projects = getProjects( request );

         if ( projects.isEmpty() )

         {

             projects.add( getSuperProject( request ) );

             foundProjects = false;

         }

         ReactorManager rm;

         try

         {

             rm = new ReactorManager( projects );

             String requestFailureBehavior = request.getFailureBehavior();

             if ( requestFailureBehavior != null )

             {

                 rm.setFailureBehavior( requestFailureBehavior );

             }

         }

         catch ( CycleDetectedException e )

         {

             throw new BuildFailureException(

                 "The projects in the reactor contain a cyclic reference: " + e.getMessage(), e );

         }

         catch ( DuplicateProjectException e )

         {

             throw new BuildFailureException( e.getMessage(), e );

         }

         // --------------------------------------------------------------------------------

         // MNG-3641: print a warning if one of the profiles to be activated explicitly

         // was not activated

         validateActivatedProfiles( globalProfileManager, projects );

         if ( rm.hasMultipleProjects() )

         {

             getLogger().info( "Reactor build order: " );

             for ( Iterator i = rm.getSortedProjects().iterator(); i.hasNext(); )

             {

                 MavenProject project = (MavenProject) i.next();

                 getLogger().info( "  " + project.getName() );

             }

         }

         MavenSession session = createSession( request, rm );

         session.setUsingPOMsFromFilesystem( foundProjects );

         lifecycleExecutor.execute( session, rm, dispatcher );

         return rm;

     }

     private void validateActivatedProfiles( ProfileManager globalProfileManager, List projects )

     {

         if ( globalProfileManager != null )

         {

             // get all activated profile ids

             Set activeProfileIds = new HashSet();

             for ( Iterator i = projects.iterator(); i.hasNext(); )

             {

                 MavenProject project = (MavenProject) i.next();

                 do

                 {

                     for ( Iterator j = project.getActiveProfiles().iterator(); j.hasNext(); )

                     {

                         activeProfileIds.add( ( (Profile) j.next() ).getId() );

                     }

                     project = project.getParent();

                 }

                 while ( project != null );

             }

             for ( Iterator i = globalProfileManager.getExplicitlyActivatedIds().iterator(); i.hasNext(); )

             {

                 String explicitProfileId = (String) i.next();

                 if ( !activeProfileIds.contains( explicitProfileId ) )

                 {

                     getLogger().warn( "\n\tProfile with id: \'" + explicitProfileId + "\' has not been activated.\n" );

                 }

             }

         }

     }

     private MavenProject getSuperProject( MavenExecutionRequest request )

         throws MavenExecutionException

     {

         MavenProject superProject;

         try

         {

             superProject = projectBuilder.buildStandaloneSuperProject( request.getLocalRepository(), request.getGlobalProfileManager() );

         }

         catch ( ProjectBuildingException e )

         {

             throw new MavenExecutionException( e.getMessage(), e );

         }

         return superProject;

     }

     private List getProjects( MavenExecutionRequest request )

         throws MavenExecutionException, BuildFailureException

     {

         List projects;

         try

         {

             List files = getProjectFiles( request );

             projects = collectProjects( files, request, !request.isReactorActive() );

         }

         catch ( IOException e )

         {

             throw new MavenExecutionException( "Error processing projects for the reactor: " + e.getMessage(), e );

         }

         catch ( ArtifactResolutionException e )

         {

             throw new MavenExecutionException( e.getMessage(), e );

         }

         catch ( ProjectBuildingException e )

         {

             throw new MavenExecutionException( e.getMessage(), e );

         }

         catch ( ProfileActivationException e )

         {

             throw new MavenExecutionException( e.getMessage(), e );

         }

         return projects;

     }

     private void logReactorSummaryLine( String name, String status )

     {

         logReactorSummaryLine( name, status, -1 );

     }

     private void logReactorSummaryLine( String name, String status, long time )

     {

         StringBuffer messageBuffer = new StringBuffer();

         messageBuffer.append( name );

         int dotCount = 54;

         dotCount -= name.length();

         messageBuffer.append( " " );

         for ( int i = 0; i < dotCount; i++ )

         {

             messageBuffer.append( '.' );

         }

         messageBuffer.append( " " );

         messageBuffer.append( status );

         if ( time >= 0 )

         {

             messageBuffer.append( " [" );

             messageBuffer.append( getFormattedTime( time ) );

             messageBuffer.append( "]" );

         }

         getLogger().info( messageBuffer.toString() );

     }

     private static String getFormattedTime( long time )

     {

         String pattern = "s.SSS's'";

         if ( time / 60000L > 0 )

         {

             pattern = "m:s" + pattern;

             if ( time / 3600000L > 0 )

             {

                 pattern = "H:m" + pattern;

             }

         }

         DateFormat fmt = new SimpleDateFormat( pattern );

         fmt.setTimeZone( TimeZone.getTimeZone( "UTC" ) );

         return fmt.format( new Date( time ) );

     }

     private List collectProjects( List files, MavenExecutionRequest request, boolean isRoot )

         throws ArtifactResolutionException, ProjectBuildingException, ProfileActivationException,

         MavenExecutionException, BuildFailureException

     {

 //        .getLocalRepository(), request.isRecursive(),

 //        request.getSettings(), request.getUserProperties(), requ, !request.isReactorActive()

         List projects = new ArrayList( files.size() );

         for ( Iterator iterator = files.iterator(); iterator.hasNext(); )

         {

             File file = (File) iterator.next();

             boolean usingReleasePom = false;

             if ( RELEASE_POMv4.equals( file.getName() ) )

             {

                 getLogger().info( "NOTE: Using release-pom: " + file + " in reactor build." );

                 usingReleasePom = true;

             }

             MavenProject project = getProject( file, request );

             if ( isRoot )

             {

                 project.setExecutionRoot( true );

             }

             if ( ( project.getPrerequisites() != null ) && ( project.getPrerequisites().getMaven() != null ) )

             {

                 DefaultArtifactVersion version = new DefaultArtifactVersion( project.getPrerequisites().getMaven() );

                 if ( runtimeInformation.getApplicationVersion().compareTo( version ) < 0 )

                 {

                     throw new BuildFailureException( "Unable to build project '" + project.getFile() +

                         "; it requires Maven version " + version.toString() );

                 }

             }

             if ( ( project.getModules() != null ) && !project.getModules().isEmpty() && request.isRecursive() )

             {

                 // TODO: Really should fail if it was not? What if it is aggregating - eg "ear"?

                 project.setPackaging( "pom" );

                 File basedir = file.getParentFile();

                 // Initial ordering is as declared in the modules section

                 List moduleFiles = new ArrayList( project.getModules().size() );

                 for ( Iterator i = project.getModules().iterator(); i.hasNext(); )

                 {

                     String name = (String) i.next();

                     if ( StringUtils.isEmpty( StringUtils.trim( name ) ) )

                     {

                         getLogger().warn(

                             "Empty module detected. Please check you don't have any empty module definitions in your POM." );

                         continue;

                     }

                     File moduleFile = new File( basedir, name );

                     if ( moduleFile.exists() && moduleFile.isDirectory() )

                     {

                         if ( usingReleasePom )

                         {

                             moduleFile = new File( basedir, name + "/" + Maven.RELEASE_POMv4 );

                         }

                         else

                         {

                             moduleFile = new File( basedir, name + "/" + Maven.POMv4 );

                         }

                     }

                     if ( Os.isFamily( "windows" ) )

                     {

                         // we don't canonicalize on unix to avoid interfering with symlinks

                         try

                         {

                             moduleFile = moduleFile.getCanonicalFile();

                         }

                         catch ( IOException e )

                         {

                             throw new MavenExecutionException( "Unable to canonicalize file name " + moduleFile, e );

                         }

                     }

                     else

                     {

                         moduleFile = new File( moduleFile.toURI().normalize() );

                     }

                     moduleFiles.add( moduleFile );

                 }

                 List collectedProjects =

                     collectProjects( moduleFiles, request, false );

                 projects.addAll( collectedProjects );

                 project.setCollectedProjects( collectedProjects );

             }

             projects.add( project );

         }

         return projects;

     }

     /**

      * @deprecated Use {@link DefaultMaven#getProject(File, MavenExecutionRequest)} instead.

      */

     public MavenProject getProject( File pom, ArtifactRepository localRepository, Settings settings,

                                     Properties userProperties, ProfileManager globalProfileManager )

         throws ProjectBuildingException, ArtifactResolutionException, ProfileActivationException

     {

         MavenExecutionRequest request = new DefaultMavenExecutionRequest(

                                                                       localRepository,

                                                                       settings,

                                                                       new DefaultEventDispatcher(),

                                                                       Collections.EMPTY_LIST,

                                                                       pom.getParentFile()

                                                                          .getAbsolutePath(),

                                                                       globalProfileManager,

                                                                       globalProfileManager.getRequestProperties(),

                                                                       new Properties(), false );

         return getProject( pom, request );

     }

     public MavenProject getProject( File pom, MavenExecutionRequest request )

         throws ProjectBuildingException, ArtifactResolutionException, ProfileActivationException

     {

         if ( pom.exists() )

         {

             if ( pom.length() == 0 )

             {

                 throw new ProjectBuildingException( "unknown", "The file " + pom.getAbsolutePath() +

                     " you specified has zero length." );

             }

         }

         ProjectBuilderConfiguration config = new DefaultProjectBuilderConfiguration();

         config.setLocalRepository( request.getLocalRepository() )

               .setGlobalProfileManager( request.getGlobalProfileManager() )

               .setUserProperties( request.getUserProperties() );

         return projectBuilder.build( pom, config );

     }

     // ----------------------------------------------------------------------

     // Methods used by all execution request handlers

     // ----------------------------------------------------------------------

     //!! We should probably have the execution request handler create the

     // session as

     // the session type would be specific to the request i.e. having a project

     // or not.

     protected MavenSession createSession( MavenExecutionRequest request,

                                           ReactorManager rpm )

     {

         return new MavenSession( container, request.getSettings(), request.getLocalRepository(),

                                  request.getEventDispatcher(), rpm, request.getGoals(), request.getBaseDirectory(),

                                  request.getExecutionProperties(), request.getStartTime() );

     }

     /**

      * @todo [BP] this might not be required if there is a better way to pass

      * them in. It doesn't feel quite right.

      * @todo [JC] we should at least provide a mapping of protocol-to-proxy for

      * the wagons, shouldn't we?

      */

     private void resolveParameters( Settings settings )

         throws ComponentLookupException, ComponentLifecycleException, SettingsConfigurationException

     {

         WagonManager wagonManager = (WagonManager) container.lookup( WagonManager.ROLE );

         try

         {

             Proxy proxy = settings.getActiveProxy();

             if ( proxy != null )

             {

                 if ( proxy.getHost() == null )

                 {

                     throw new SettingsConfigurationException( "Proxy in settings.xml has no host" );

                 }

                 wagonManager.addProxy( proxy.getProtocol(), proxy.getHost(), proxy.getPort(), proxy.getUsername(),

                                        proxy.getPassword(), proxy.getNonProxyHosts() );

             }

             for ( Iterator i = settings.getServers().iterator(); i.hasNext(); )

             {

                 Server server = (Server) i.next();

                 wagonManager.addAuthenticationInfo( server.getId(), server.getUsername(), server.getPassword(),

                                                     server.getPrivateKey(), server.getPassphrase() );

                 wagonManager.addPermissionInfo( server.getId(), server.getFilePermissions(),

                                                 server.getDirectoryPermissions() );

                 if ( server.getConfiguration() != null )

                 {

                     wagonManager.addConfiguration( server.getId(), (Xpp3Dom) server.getConfiguration() );

                 }

             }

             RepositoryPermissions defaultPermissions = new RepositoryPermissions();

             defaultPermissions.setDirectoryMode( "775" );

             defaultPermissions.setFileMode( "664" );

             wagonManager.setDefaultRepositoryPermissions( defaultPermissions );

             for ( Iterator i = settings.getMirrors().iterator(); i.hasNext(); )

             {

                 Mirror mirror = (Mirror) i.next();

                 wagonManager.addMirror( mirror.getId(), mirror.getMirrorOf(), mirror.getUrl() );

             }

         }

         finally

         {

             container.release( wagonManager );

         }

     }

     // ----------------------------------------------------------------------

     // Lifecylce Management

     // ----------------------------------------------------------------------

     public void contextualize( Context context )

         throws ContextException

     {

         container = (PlexusContainer) context.get( PlexusConstants.PLEXUS_KEY );

     }

     // ----------------------------------------------------------------------

     // Reporting / Logging

     // ----------------------------------------------------------------------

     protected void logFatal( Throwable error )

     {

         line();

         getLogger().error( "FATAL ERROR" );

         line();

         logDiagnostics( error );

         logTrace( error, true );

     }

     protected void logError( Exception e, boolean showErrors )

     {

         line();

         getLogger().error( "BUILD ERROR" );

         line();

         logDiagnostics( e );

         logTrace( e, showErrors );

         if ( !showErrors )

         {

             getLogger().info( "For more information, run Maven with the -e switch" );

             line();

         }

     }

     protected void logFailure( BuildFailureException e, boolean showErrors )

     {

         line();

         getLogger().error( "BUILD FAILURE" );

         line();

         logDiagnostics( e );

         logTrace( e, showErrors );

         if ( !showErrors )

         {

             getLogger().info( "For more information, run Maven with the -e switch" );

             line();

         }

     }

     private void logTrace( Throwable t, boolean showErrors )

     {

         if ( getLogger().isDebugEnabled() )

         {

             getLogger().debug( "Trace", t );

             line();

         }

         else if ( showErrors )

         {

             getLogger().info( "Trace", t );

             line();

         }

     }

     private void logDiagnostics( Throwable t )

     {

         String message = null;

         if ( errorDiagnostics != null )

         {

             message = errorDiagnostics.diagnose( t );

         }

         if ( message == null )

         {

             message = t.getMessage();

         }

         getLogger().info( message );

         line();

     }

     protected void logSuccess( ReactorManager rm )

     {

         line();

         getLogger().info( "BUILD SUCCESSFUL" );

         line();

     }

     private void logReactorSummary( ReactorManager rm )

     {

         if ( rm.hasMultipleProjects() && rm.executedMultipleProjects() )

         {

             getLogger().info( "" );

             getLogger().info( "" );

             // -------------------------

             // Reactor Summary:

             // -------------------------

             // o project-name...........FAILED

             // o project2-name..........SKIPPED (dependency build failed or was skipped)

             // o project-3-name.........SUCCESS

             line();

             getLogger().info( "Reactor Summary:" );

             line();

             for ( Iterator it = rm.getSortedProjects().iterator(); it.hasNext(); )

             {

                 MavenProject project = (MavenProject) it.next();

                 if ( rm.hasBuildFailure( project ) )

                 {

                     logReactorSummaryLine( project.getName(), "FAILED", rm.getBuildFailure( project ).getTime() );

                 }

                 else if ( rm.isBlackListed( project ) )

                 {

                     logReactorSummaryLine( project.getName(), "SKIPPED (dependency build failed or was skipped)" );

                 }

                 else if ( rm.hasBuildSuccess( project ) )

                 {

                     logReactorSummaryLine( project.getName(), "SUCCESS", rm.getBuildSuccess( project ).getTime() );

                 }

                 else

                 {

                     logReactorSummaryLine( project.getName(), "NOT BUILT" );

                 }

             }

             line();

         }

     }

     protected void stats( Date start )

     {

         Date finish = new Date();

         long time = finish.getTime() - start.getTime();

         getLogger().info( "Total time: " + formatTime( time ) );

         getLogger().info( "Finished at: " + finish );

         //noinspection CallToSystemGC

         System.gc();

         Runtime r = Runtime.getRuntime();

         getLogger().info(

             "Final Memory: " + ( r.totalMemory() - r.freeMemory() ) / MB + "M/" + r.totalMemory() / MB + "M" );

     }

     protected void line()

     {

         getLogger().info( "------------------------------------------------------------------------" );

     }

     protected static String formatTime( long ms )

     {

         long secs = ms / MS_PER_SEC;

         long min = secs / SEC_PER_MIN;

         secs = secs % SEC_PER_MIN;

         String msg = "";

         if ( min > 1 )

         {

             msg = min + " minutes ";

         }

         else if ( min == 1 )

         {

             msg = "1 minute ";

         }

         if ( secs > 1 )

         {

             msg += secs + " seconds";

         }

         else if ( secs == 1 )

         {

             msg += "1 second";

         }

         else if ( min == 0 )

         {

             msg += "< 1 second";

         }

         return msg;

     }

     private List getProjectFiles( MavenExecutionRequest request )

         throws IOException

     {

         List files = Collections.EMPTY_LIST;

         File userDir = new File( System.getProperty( "user.dir" ) );

         if ( request.isReactorActive() )

         {

             // TODO: should we now include the pom.xml in the current directory?

 //            String includes = System.getProperty( "maven.reactor.includes", "**/" + POMv4 );

 //            String excludes = System.getProperty( "maven.reactor.excludes", POMv4 );

             String includes = System.getProperty( "maven.reactor.includes", "**/" + POMv4 + ",**/" + RELEASE_POMv4 );

             String excludes = System.getProperty( "maven.reactor.excludes", POMv4 + "," + RELEASE_POMv4 );

             files = FileUtils.getFiles( userDir, includes, excludes );

             filterOneProjectFilePerDirectory( files );

             // make sure there is consistent ordering on all platforms, rather than using the filesystem ordering

             Collections.sort( files );

         }

         else if ( request.getPomFile() != null )

         {

             File projectFile = new File( request.getPomFile() ).getAbsoluteFile();

             if ( projectFile.exists() )

             {

                 files = Collections.singletonList( projectFile );

             }

         }

         else

         {

             File projectFile = new File( userDir, RELEASE_POMv4 );

             if ( !projectFile.exists() )

             {

                 projectFile = new File( userDir, POMv4 );

             }

             if ( projectFile.exists() )

             {

                 files = Collections.singletonList( projectFile );

             }

         }

         return files;

     }

     private void filterOneProjectFilePerDirectory( List files )

     {

         List releaseDirs = new ArrayList();

         for ( Iterator it = files.iterator(); it.hasNext(); )

         {

             File projectFile = (File) it.next();

             if ( RELEASE_POMv4.equals( projectFile.getName() ) )

             {

                 releaseDirs.add( projectFile.getParentFile() );

             }

         }

         for ( Iterator it = files.iterator(); it.hasNext(); )

         {

             File projectFile = (File) it.next();

             // remove pom.xml files where there is a sibling release-pom.xml file...

             if ( !RELEASE_POMv4.equals( projectFile.getName() ) && releaseDirs.contains( projectFile.getParentFile() ) )

             {

                 it.remove();

             }

         }

     }

 }