package org.apache.maven.scm.provider.git.gitexe.command.diff;
/*
* 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.scm.ScmException;
import org.apache.maven.scm.ScmFileSet;
import org.apache.maven.scm.ScmVersion;
import org.apache.maven.scm.command.diff.AbstractDiffCommand;
import org.apache.maven.scm.command.diff.DiffScmResult;
import org.apache.maven.scm.provider.ScmProviderRepository;
import org.apache.maven.scm.provider.git.command.GitCommand;
import org.apache.maven.scm.provider.git.command.diff.GitDiffConsumer;
import org.apache.maven.scm.provider.git.gitexe.command.GitCommandLineUtils;
import org.codehaus.plexus.util.StringUtils;
import org.codehaus.plexus.util.cli.CommandLineUtils;
import org.codehaus.plexus.util.cli.Commandline;
import java.io.File;
/**
* @author <a href="mailto:struberg@yahoo.de">Mark Struberg</a>
*
*/
public class GitDiffCommand
extends AbstractDiffCommand
implements GitCommand
{
/** {@inheritDoc} */
protected DiffScmResult executeDiffCommand( ScmProviderRepository repo, ScmFileSet fileSet,
ScmVersion startVersion, ScmVersion endVersion )
throws ScmException
{
GitDiffConsumer consumer = new GitDiffConsumer( getLogger(), fileSet.getBasedir() );
CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();
int exitCode;
Commandline clDiff2Index = createCommandLine( fileSet.getBasedir(), startVersion, endVersion, false );
exitCode = GitCommandLineUtils.execute( clDiff2Index, consumer, stderr, getLogger() );
if ( exitCode != 0 )
{
return new DiffScmResult( clDiff2Index.toString(), "The git-diff command failed.", stderr.getOutput(),
false );
}
Commandline clDiff2Head = createCommandLine( fileSet.getBasedir(), startVersion, endVersion, true );
exitCode = GitCommandLineUtils.execute( clDiff2Head, consumer, stderr, getLogger() );
if ( exitCode != 0 )
{
return new DiffScmResult( clDiff2Head.toString(), "The git-diff command failed.", stderr.getOutput(),
false );
}
return new DiffScmResult( clDiff2Index.toString(), consumer.getChangedFiles(), consumer.getDifferences(),
consumer.getPatch() );
}
// ----------------------------------------------------------------------
//
// ----------------------------------------------------------------------
/**
* @param cached if <code>true</code> diff the index to the head, else diff the tree to the index
*/
public static Commandline createCommandLine( File workingDirectory, ScmVersion startVersion, ScmVersion endVersion,
boolean cached )
{
Commandline cl = GitCommandLineUtils.getBaseGitCommandLine( workingDirectory, "diff" );
if ( cached )
{
cl.createArg().setValue( "--cached" );
}
if ( startVersion != null && StringUtils.isNotEmpty( startVersion.getName() ) )
{
cl.createArg().setValue( startVersion.getName() );
}
if ( endVersion != null && StringUtils.isNotEmpty( endVersion.getName() ) )
{
cl.createArg().setValue( endVersion.getName() );
}
return cl;
}
/**
* Create a CommandLine for executing a git diff --raw command.
* This will output all affected files affected since the given commit and
* the current version.
*
* @param workingDirectory
*/
public static Commandline createDiffRawCommandLine( File workingDirectory, String sha1 )
{
Commandline cl = GitCommandLineUtils.getBaseGitCommandLine( workingDirectory, "diff" );
cl.createArg().setValue( "--raw" );
cl.createArg().setValue( sha1 );
return cl;
}
}