package org.apache.maven.scm.provider.perforce.command;
/*
* 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.log.ScmLogger;
import org.apache.maven.scm.provider.perforce.PerforceScmProvider;
import org.apache.maven.scm.provider.perforce.repository.PerforceScmProviderRepository;
import org.codehaus.plexus.util.cli.CommandLineException;
import org.codehaus.plexus.util.cli.Commandline;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
/**
* Encapsulates the 'p4 where' command which can be very useful in determining
* a file's location within the depot. Use <code>getDepotLocation(String path)</code> to query
* the depot location for a particular file. The data from p4 where looks like this:
* <p/>
* <pre>
* p4 where pom.xml
* //depot/modules/fabric/trunk/pom.xml //mikeperham-dt/depot/modules/fabric/trunk/pom.xml
* d:\perforce\depot\modules\fabric\trunk\pom.xml
* </pre>
*
* @author mperham
* @version $Id: $
*/
public class PerforceWhereCommand
{
private ScmLogger logger = null;
private PerforceScmProviderRepository repo = null;
public PerforceWhereCommand( ScmLogger log, PerforceScmProviderRepository repos )
{
logger = log;
repo = repos;
}
public String getDepotLocation( File file )
{
return getDepotLocation( file.getAbsolutePath() );
}
/**
* @param filepath an absolute file path
* @return the absolute location of the given file within the Perforce repository or null if the file
* does not exist in a mapping within the current clientspec.
*/
public String getDepotLocation( String filepath )
{
if ( !PerforceScmProvider.isLive() )
{
return null;
}
try
{
Commandline command = PerforceScmProvider.createP4Command( repo, null );
command.createArg().setValue( "where" );
command.createArg().setValue( filepath );
if ( logger.isDebugEnabled() )
{
logger.debug( PerforceScmProvider.clean( "Executing: " + command.toString() ) );
}
Process proc = command.execute();
BufferedReader br = new BufferedReader( new InputStreamReader( proc.getInputStream() ) );
BufferedReader brErr = new BufferedReader( new InputStreamReader( proc.getErrorStream() ) );
String line;
String path = null;
while ( ( line = br.readLine() ) != null )
{
if ( line.indexOf( "not in client view" ) != -1 )
{
// uh oh, something bad is happening
if ( logger.isErrorEnabled() )
{
logger.error( line );
}
return null;
}
if ( line.indexOf( "is not under" ) != -1 )
{
// uh oh, something bad is happening
if ( logger.isErrorEnabled() )
{
logger.error( line );
}
return null;
}
if ( logger.isDebugEnabled() )
{
logger.debug( line );
}
// verify that "//" appears twice in the line
path = line.substring( 0, line.lastIndexOf( "//" ) - 1 );
}
// Check for errors
while ( ( line = brErr.readLine() ) != null )
{
if ( line.indexOf( "not in client view" ) != -1 )
{
// uh oh, something bad is happening
if ( logger.isErrorEnabled() )
{
logger.error( line );
}
return null;
}
if ( line.indexOf( "is not under" ) != -1 )
{
// uh oh, something bad is happening
if ( logger.isErrorEnabled() )
{
logger.error( line );
}
return null;
}
if ( logger.isDebugEnabled() )
{
logger.debug( line );
}
}
return path;
}
catch ( CommandLineException e )
{
if ( logger.isErrorEnabled() )
{
logger.error( e );
}
throw new RuntimeException( e.getLocalizedMessage() );
}
catch ( IOException e )
{
if ( logger.isErrorEnabled() )
{
logger.error( e );
}
throw new RuntimeException( e.getLocalizedMessage() );
}
}
}