001package org.apache.maven.scm.provider.git.gitexe.command.status;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 *
012 * http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022import java.net.URI;
023
024import org.apache.maven.scm.ScmException;
025import org.apache.maven.scm.ScmFileSet;
026import org.apache.maven.scm.command.AbstractCommand;
027import org.apache.maven.scm.command.status.AbstractStatusCommand;
028import org.apache.maven.scm.command.status.StatusScmResult;
029import org.apache.maven.scm.provider.ScmProviderRepository;
030import org.apache.maven.scm.provider.git.command.GitCommand;
031import org.apache.maven.scm.provider.git.gitexe.command.GitCommandLineUtils;
032import org.apache.maven.scm.provider.git.repository.GitScmProviderRepository;
033import org.codehaus.plexus.util.cli.CommandLineUtils;
034import org.codehaus.plexus.util.cli.Commandline;
035
036/**
037 * @author <a href="mailto:brett@apache.org">Brett Porter</a>
038 *
039 */
040public class GitStatusCommand
041    extends AbstractStatusCommand
042    implements GitCommand
043{
044    /** {@inheritDoc} */
045    protected StatusScmResult executeStatusCommand( ScmProviderRepository repo, ScmFileSet fileSet )
046        throws ScmException
047    {
048        int exitCode;
049        CommandLineUtils.StringStreamConsumer stderr;
050
051        URI relativeRepositoryPath = getRelativeCWD( this, fileSet );
052
053        Commandline cl = createCommandLine( (GitScmProviderRepository) repo, fileSet );
054
055        GitStatusConsumer consumer = new GitStatusConsumer( getLogger(), fileSet.getBasedir(), relativeRepositoryPath );
056
057        stderr = new CommandLineUtils.StringStreamConsumer();
058
059        exitCode = GitCommandLineUtils.execute( cl, consumer, stderr, getLogger() );
060        if ( exitCode != 0 )
061        {
062            // git-status returns non-zero if nothing to do
063            if ( getLogger().isInfoEnabled() )
064            {
065                getLogger().info( "nothing added to commit but untracked files present (use \"git add\" to track)" );
066            }
067        }
068
069        return new StatusScmResult( cl.toString(), consumer.getChangedFiles() );
070    }
071
072    // ----------------------------------------------------------------------
073    //
074    // ----------------------------------------------------------------------
075
076    /**
077     * Get the dir relative to the repository root.
078     * 
079     * @param caller the caller command.
080     * @param fileSet in which subdir to execute.
081     * @return the relative URI.
082     * @throws ScmException if execute() fails.
083     */
084    public static URI getRelativeCWD( AbstractCommand caller, ScmFileSet fileSet )
085        throws ScmException
086    {
087        Commandline clRevparse = createRevparseShowPrefix( fileSet );
088
089        CommandLineUtils.StringStreamConsumer stdout = new CommandLineUtils.StringStreamConsumer();
090        CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();
091
092        URI relativeRepositoryPath = null;
093
094        int exitCode = GitCommandLineUtils.execute( clRevparse, stdout, stderr, caller.getLogger() );
095        if ( exitCode != 0 )
096        {
097            // git-status returns non-zero if nothing to do
098            if ( caller.getLogger().isInfoEnabled() )
099            {
100                caller.getLogger().info( "Could not resolve prefix" );
101            }
102        }
103        else
104        {
105            relativeRepositoryPath = GitStatusConsumer.uriFromPath( stdout.getOutput().trim() );
106        }
107        return relativeRepositoryPath;
108    }
109
110    public static Commandline createCommandLine( GitScmProviderRepository repository, ScmFileSet fileSet )
111    {
112        Commandline cl = GitCommandLineUtils.getBaseGitCommandLine( fileSet.getBasedir(), "status" );
113        cl.addArguments( new String[] { "--porcelain", "." } );
114        return cl;
115    }
116    
117    public static Commandline createRevparseShowPrefix( ScmFileSet fileSet )
118    {
119        Commandline cl = GitCommandLineUtils.getBaseGitCommandLine( fileSet.getBasedir(), "rev-parse" );
120        cl.addArguments( new String[] { "--show-prefix" } );
121        return cl;
122    }
123}