/**
* Copyright (C) cedarsoft GmbH.
*
* Licensed under the GNU General Public License version 3 (the "License")
* with Classpath Exception; you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.cedarsoft.org/gpl3ce
* (GPL 3 with Classpath Exception)
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3 only, as
* published by the Free Software Foundation. cedarsoft GmbH designates this
* particular file as subject to the "Classpath" exception as provided
* by cedarsoft GmbH in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 3 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 3 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact cedarsoft GmbH, 72810 Gomaringen, Germany,
* or visit www.cedarsoft.com if you need additional information or
* have any questions.
*/
package com.cedarsoft.generator.maven;
import com.cedarsoft.exec.Executer;
import com.google.common.base.Splitter;
import com.google.common.collect.Lists;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.codehaus.plexus.util.FileUtils;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import java.io.File;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
/**
* Shows a diff between the generated sources and the regular classes.
*
* @goal diff
*/
public class ShowDiffMojo extends SourceFolderAwareMojo {
/**
* The diff command that shall be executed.
* The default value is "diff {0} {1}"
*
* @parameter expression="${diffCommand}"
*/
@NonNls
private String diffCommand = "diff {0} {1}";
@NonNls
protected String getDiffCommand() {
return diffCommand;
}
@Override
public void execute() throws MojoExecutionException, MojoFailureException {
getLog().info( "Showing diff" );
Collection<String> skippedFiles = new ArrayList<String>();
try {
{
try {
skippedFiles.addAll( showDiffs( getOutputDirectory(), getSourceRoot() ) );
skippedFiles.addAll( showDiffs( getResourcesOutputDirectory(), getResourcesRoot() ) );
} catch ( IOException e ) {
throw new MojoFailureException( "Diff failed due to " + e.getMessage(), e );
}
}
{
try {
skippedFiles.addAll( showDiffs( getTestOutputDirectory(), getTestSourceRoot() ) );
skippedFiles.addAll( showDiffs( getTestResourcesOutputDirectory(), getTestResourcesRoot() ) );
} catch ( IOException e ) {
throw new MojoFailureException( "Diff failed due to " + e.getMessage(), e );
}
}
if ( !skippedFiles.isEmpty() ) {
getLog().info( "" );
getLog().info( "-----------------------------------------------" );
getLog().info( "Those files do *not* exist in the source folder:" );
getLog().info( "" );
for ( String skipped : skippedFiles ) {
getLog().info( "\t- " + skipped );
}
getLog().info( "-----------------------------------------------" );
}
} catch ( InterruptedException e ) {
throw new MojoExecutionException( "Failure", e );
}
}
@NotNull
protected List<String> showDiffs( @NotNull File sourceDirectory, @NotNull File targetDir ) throws MojoExecutionException, IOException, InterruptedException {
if ( !sourceDirectory.exists() || sourceDirectory.list().length == 0 ) {
getLog().warn( "No generated files found in " + sourceDirectory.getPath() );
getLog().warn( "Call the <generate> goal first." );
return Collections.emptyList();
}
getLog().info( "Showing diff for generated files comparing to " + targetDir.getPath() );
List<String> skippedFiles = new ArrayList<String>();
List<? extends String> filesNames = FileUtils.getFileNames( sourceDirectory, "**", null, true );
for ( String serializerFileName : filesNames ) {
String relative = serializerFileName.substring( sourceDirectory.getPath().length() + 1 );
File generated = new File( targetDir, relative );
if ( generated.exists() ) {
getLog().info( "Showing diff for: " + relative );
File inSourceDir = new File( sourceDirectory, relative );
showDiff( inSourceDir, generated );
} else {
skippedFiles.add( relative );
getLog().info( "No corresponding file found for " + relative );
}
}
return skippedFiles;
}
private void showDiff( @NotNull File src, @NotNull File generated ) throws IOException, InterruptedException {
String commandLine = buildCommandLine( src.getAbsolutePath(), generated.getAbsolutePath() );
getLog().info( "Executing <" + commandLine + ">" );
Executer executer = new Executer( new ProcessBuilder( Lists.newArrayList( Splitter.on( " " ).split( commandLine ) ) ), true );
executer.execute();
}
@NotNull
@NonNls
public String buildCommandLine( @NotNull @NonNls String firstPath, @NotNull @NonNls String secondPath ) {
return MessageFormat.format( getDiffCommand(), firstPath, secondPath );
}
}