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package org.codehaus.mojo.rpm;
/*
* Licensed 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 java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.ArtifactUtils;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.model.Dependency;
import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.project.MavenProject;
import org.codehaus.mojo.tools.context.BuildAdvisor;
import org.codehaus.mojo.tools.rpm.RpmFormattingException;
import org.codehaus.mojo.tools.rpm.RpmInfoFormatter;
import org.codehaus.mojo.tools.rpm.RpmSpecFormatter;
/**
* Build a RPM spec file and save it to disk for subsequent harvesting.
*
* @goal generate-spec
* @phase package
*/
public class GenerateSpecFileMojo
extends AbstractMojo
{
/**
* Whether to skip RPM spec file generation.
*
* @parameter expression="${skipSpecGeneration}" default-value="false" alias="rpm.genspec.skip"
*/
private boolean skip;
/**
*Override for platform postfix on RPM release number
*
* @parameter expression="${platformPostfix}" alias="rpm.genspec.platformPostfix"
*/
private String platformPostfix;
/**
* Whether to skip postfix on RPM release number
* rhoover - we can't use null on platformPostfix as an indication to skip the postfix
* until this bug is fixed (http://jira.codehaus.org/browse/MNG-1959;jsessionid=a9HqXpP8ZvX7DDXqNR?page=all)
* because currently specifying an empty string for a parameter in the POM yields null instead
* of an empty string.
*
* @parameter expression="${skipPlatformPostfix}" default-value="false" alias="rpm.genspec.skipPlatformPostfix"
*/
private boolean skipPlatformPostfix;
/**
* The Artifact instance for the current project. This will be added to the list of
* functionality provided by this RPM.
*
* @parameter expression="${project.artifact}"
* @required
* @readonly
*/
private Artifact projectArtifact;
/**
* The dependencies of this project, for use in defining the depends and provides sets for
* the RPM.
*
* @parameter expression="${project.dependencies}"
* @required
* @readonly
*/
private List dependencies;
/**
* List of dependencies in the form 'groupId:artifactId' which should be excluded from
* the list of provided functionality.
*
* @parameter
*/
private List providesExclusions;
/**
* List of dependencies in the form 'groupId:artifactId' which should be excluded from
* the list of dependency functionality.
*
* @parameter
*/
private List dependsExclusions;
/**
* The current project being built. This instance is used to furnish the information required to
* construct the RPM spec file
*
* @parameter expression="${project}"
* @required
* @readonly
*/
private MavenProject project;
/**
* Override parameter for the name of the RPM to be created.
*
* @parameter
*/
private String rpmName;
/**
* The top directory of the RPM harvesting structure.
*
* @parameter default-value="${project.build.directory}/rpm-topdir"
* @required
*/
private File topDir;
/**
* The Make DEST_DIR, to let the RPM harvester know how to reorient the generated RPM.
*
* @parameter default-value="${project.build.directory}"
* @required
*/
private File destDir;
/**
* The configure prefix, to let the RPM harvester know how to build the dir structure.
*
* @parameter
* @required
*/
private String prefix;
/**
* The build number of the RPM, so you get versions like 1.2-4 which
* would be the fourth build of the 1.2 tarball.
*
* @parameter expression="${release}" default-value="1"
* @required
*/
private String release;
/**
* Turn off RPM compression and symbol stripping - this really hoses
* the Sybase RPM.
*
* @parameter expression="${rpmNoStrip}"
*/
private boolean rpmNoStrip;
/**
* Create a simple RPM pre install mechanism
* If defined, the RPM will insert the named file into the spec file
* that the pluggin is building (this is weak in the sense that template
* expansion is not occuring)
*
* @parameter expression="${preInstallFile}"
*/
private File preInstallFile;
/**
* Create a simple RPM post un install mechanism
* If defined, the RPM will insert the named file into the spec file
* that the pluggin is building (this is weak in the sense that template
* expansion is not occuring)
*
* @parameter expression="${postUninstallFile}"
*/
private File postUninstallFile;
/**
* Create a simple RPM pre un install mechanism
* If defined, the RPM will insert the named file into the spec file
* that the pluggin is building (this is weak in the sense that template
* expansion is not occuring)
*
* @parameter expression="${preUninstallFile}"
*/
private File preUninstallFile;
/**
* Create a simple RPM post install mechanism
* If defined, the RPM will insert the named file into the spec file
* that the pluggin is building (some claim this is weak, but
* make the script a .sh.in file and let autoconf do some expanding)
*
* @parameter expression="${postInstallFile}"
*/
private File postInstallFile;
/**
* @parameter expression="${session}"
* @required
* @readonly
*/
private MavenSession session;
/**
* @component
*/
private RpmSpecFormatter rpmSpecFormatter;
/**
* @component
*/
private RpmInfoFormatter rpmInfoFormatter;
/**
* Generate a RPM spec file, and write it to disk.
*/
public void execute()
throws MojoExecutionException
{
if ( skip )
{
getLog().info( "Skipping generation of RPM spec file (per configuration)." );
return;
}
if ( BuildAdvisor.isProjectBuildSkipped( project, session.getContainer().getContext() ) )
{
getLog().info( "Skipping execution per pre-existing advice." );
return;
}
Set depends = new HashSet();
Set provides = Collections.singleton( projectArtifact );
// TODO: [JDCASEY] Fix Depends/Provides once we figure out relocatability...
getLog()
.warn(
"Assuming all dependencies are real RPM dependencies. Provides statement is not currently being populated." );
for ( Iterator it = dependencies.iterator(); it.hasNext(); )
{
Dependency dependency = (Dependency) it.next();
depends.add( dependency );
}
// Marking this out for now...we have to engage in much more complex tactics to determine what is provided, and what
// is a real RPM dependency...we'll use the above code instead in the interim.
// for ( Iterator it = dependencies.iterator(); it.hasNext(); )
// {
// Dependency dependency = (Dependency) it.next();
//
// if ( Artifact.SCOPE_SYSTEM.equals( dependency.getScope() ) )
// {
// depends.add( dependency );
// }
// else
// {
// provides.add( dependency );
// }
// }
processExclusions( provides, depends );
String spec;
try
{
spec = rpmSpecFormatter.buildSpec( project, session.getLocalRepository(), depends, provides, destDir, prefix,
release, rpmNoStrip, preInstallFile, postInstallFile, postUninstallFile, preUninstallFile, platformPostfix, skipPlatformPostfix );
}
catch ( RpmFormattingException e )
{
throw new MojoExecutionException( "Failed to build RPM spec file. Reason: " + e.getMessage(), e );
}
writeSpecFile( spec );
}
/**
* Persist the generated spec file to disk. This file is written into the RPM top-dir under
* "/SPECS".
*/
private void writeSpecFile( String spec )
throws MojoExecutionException
{
String specFileName;
if ( rpmName != null && rpmName.trim().length() > 0 )
{
specFileName = rpmName + ".spec";
}
else
{
try
{
specFileName = rpmInfoFormatter.formatRpmName( project, release, platformPostfix, skipPlatformPostfix ) + ".spec";
}
catch ( RpmFormattingException e )
{
throw new MojoExecutionException( "Failed to format RPM name. Reason: " + e.getMessage(), e );
}
}
File specDir = new File( topDir, "SPECS" );
specDir.mkdirs();
File specFile = new File( specDir, specFileName );
Writer writer = null;
try
{
writer = new FileWriter( specFile );
writer.write( spec );
writer.flush();
}
catch ( IOException e )
{
throw new MojoExecutionException( "Failed to write spec file: " + specFile, e );
}
finally
{
if ( writer != null )
{
try
{
writer.close();
}
catch ( IOException e )
{
getLog().debug( "Failed to close spec-file writer.", e );
}
}
}
}
/**
* Knock out any explicit exclusions from provided and dependency sets.
*/
private void processExclusions( Set provides, Set depends )
{
Map dependencyMap = getDependencyMap();
if ( providesExclusions != null )
{
for ( Iterator it = providesExclusions.iterator(); it.hasNext(); )
{
String key = (String) it.next();
Dependency excluded = (Dependency) dependencyMap.get( key );
provides.remove( excluded );
}
}
if ( dependsExclusions != null )
{
for ( Iterator it = dependsExclusions.iterator(); it.hasNext(); )
{
String key = (String) it.next();
Dependency excluded = (Dependency) dependencyMap.get( key );
depends.remove( excluded );
}
}
}
/**
* Retrieve a map of groupId:artifactId -> Dependency to help with excluding dependencies.
*/
private Map getDependencyMap()
{
Map deps = new HashMap();
for ( Iterator it = dependencies.iterator(); it.hasNext(); )
{
Dependency dep = (Dependency) it.next();
String key = ArtifactUtils.versionlessKey( dep.getGroupId(), dep.getArtifactId() );
deps.put( key, dep );
}
return deps;
}
}
