001package org.apache.maven.scm.provider.cvslib.cvsexe.command.diff; 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 org.apache.maven.scm.ScmException; 023import org.apache.maven.scm.command.diff.DiffScmResult; 024import org.apache.maven.scm.provider.cvslib.command.diff.AbstractCvsDiffCommand; 025import org.apache.maven.scm.provider.cvslib.command.diff.CvsDiffConsumer; 026import org.codehaus.plexus.util.cli.CommandLineException; 027import org.codehaus.plexus.util.cli.CommandLineUtils; 028import org.codehaus.plexus.util.cli.Commandline; 029 030/** 031 * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a> 032 * 033 */ 034public class CvsExeDiffCommand 035 extends AbstractCvsDiffCommand 036{ 037 /** {@inheritDoc} */ 038 protected DiffScmResult executeCvsCommand( Commandline cl ) 039 throws ScmException 040 { 041 CvsDiffConsumer consumer = new CvsDiffConsumer( getLogger(), cl.getWorkingDirectory() ); 042 043 CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer(); 044 045 046 try 047 { 048 CommandLineUtils.executeCommandLine( cl, consumer, stderr ); 049 } 050 catch ( CommandLineException ex ) 051 { 052 throw new ScmException( "Error while executing command.", ex ); 053 } 054 055// TODO: a difference returns a code of "1", as does errors. How to tell the difference? 056// if ( exitCode != 0 ) 057// { 058// return new DiffScmResult( cl.toString(), "The cvs command failed.", stderr.getOutput(), false ); 059// } 060 061 return new DiffScmResult( cl.toString(), consumer.getChangedFiles(), consumer.getDifferences(), 062 consumer.getPatch() ); 063 064 } 065}