maven-scm-providers/maven-scm-provider-bazaar/src/main/java/org/apache/maven/scm/provider/bazaar/command/diff/BazaarDiffCommand.java

package org.apache.maven.scm.provider.bazaar.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.ScmResult;
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.bazaar.BazaarUtils;
import org.apache.maven.scm.provider.bazaar.command.BazaarCommand;
import org.codehaus.plexus.util.StringUtils;

/**
 * @author <a href="mailto:torbjorn@smorgrav.org">Torbjørn Eikli Smørgrav</a>
 */
public class BazaarDiffCommand
    extends AbstractDiffCommand
    implements BazaarCommand
{

    protected DiffScmResult executeDiffCommand( ScmProviderRepository repo, ScmFileSet fileSet, String startRevision,
                                                String endRevision )
        throws ScmException
    {

        String[] diffCmd;
        if ( !StringUtils.isEmpty( startRevision ) )
        {
            String revArg = startRevision;
            if ( !StringUtils.isEmpty( endRevision ) )
            {
                revArg += ".." + endRevision;
            }
            diffCmd = new String[]{DIFF_CMD, REVISION_OPTION, revArg};
        }
        else
        {
            diffCmd = new String[]{DIFF_CMD};
        }

        diffCmd = BazaarUtils.expandCommandLine( diffCmd, fileSet );
        BazaarDiffConsumer consumer = new BazaarDiffConsumer( getLogger(), fileSet.getBasedir() );

        ScmResult result = BazaarUtils.execute( consumer, getLogger(), fileSet.getBasedir(), diffCmd );

        return new DiffScmResult( consumer.getChangedFiles(), consumer.getDifferences(), consumer.getPatch(), result );
    }
}