org.apache.maven.plugins.artifact.buildinfo.CompareMojo Maven / Gradle / Ivy
package org.apache.maven.plugins.artifact.buildinfo;
/*
* 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.artifact.Artifact;
import org.apache.maven.artifact.factory.ArtifactFactory;
import org.apache.maven.artifact.repository.layout.ArtifactRepositoryLayout;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugins.annotations.Component;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;
import org.apache.maven.project.MavenProject;
import org.apache.maven.shared.utils.logging.MessageUtils;
import org.apache.maven.shared.utils.PropertyUtils;
import org.apache.maven.shared.utils.StringUtils;
import org.eclipse.aether.RepositorySystem;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.repository.RemoteRepository;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Properties;
/**
* Compare current build output with reference either previously installed or downloaded from a remote repository:
* results go to {@code .buildcompare} file.
*
* @since 3.2.0
*/
@Mojo( name = "compare" )
public class CompareMojo
extends AbstractBuildinfoMojo
{
/**
* Repository for reference build, containing either reference buildinfo file or reference artifacts.
* Format: id or url or id::url
*
* - id
* - The repository id
* - url
* - The url of the repository
*
* @see repository definition
*/
@Parameter( property = "reference.repo", defaultValue = "central" )
private String referenceRepo;
/**
* Compare aggregate only (ie wait for the last module) or do buildcompare on each module.
* @since 3.2.0
*/
@Parameter( property = "compare.aggregate.only", defaultValue = "false" )
private boolean aggregateOnly;
@Component
private ArtifactFactory artifactFactory;
/**
* The entry point to Maven Artifact Resolver, i.e. the component doing all the work.
*/
@Component
private RepositorySystem repoSystem;
/**
* The current repository/network configuration of Maven.
*/
@Parameter( defaultValue = "${repositorySystemSession}", readonly = true )
private RepositorySystemSession repoSession;
/**
* The project's remote repositories to use for the resolution.
*/
@Parameter( defaultValue = "${project.remoteProjectRepositories}", readonly = true )
private List remoteRepos;
@Component
private ArtifactRepositoryLayout artifactRepositoryLayout;
@Override
public void execute( Map artifacts )
throws MojoExecutionException
{
getLog().info( "Checking against reference build from " + referenceRepo + "..." );
checkAgainstReference( artifacts, reactorProjects.size() == 1 );
}
@Override
protected void skip( MavenProject last )
throws MojoExecutionException
{
if ( aggregateOnly )
{
return;
}
// try to download reference artifacts for current project and check if there are issues to give early feedback
checkAgainstReference( generateBuildinfo( true ), true );
}
/**
* Check current build result with reference.
*
* @artifacts a Map of artifacts added to the build info with their associated property key prefix
* (outputs.[#module.].#artifact)
* @throws MojoExecutionException
*/
private void checkAgainstReference( Map artifacts, boolean mono )
throws MojoExecutionException
{
MavenProject root = mono ? project : getExecutionRoot();
File referenceDir = new File( root.getBuild().getDirectory(), "reference" );
referenceDir.mkdirs();
// download or create reference buildinfo
File referenceBuildinfo = downloadOrCreateReferenceBuildinfo( mono, artifacts, referenceDir );
// compare outputs from reference buildinfo vs actual
compareWithReference( artifacts, referenceBuildinfo );
}
private File downloadOrCreateReferenceBuildinfo( boolean mono, Map artifacts, File referenceDir )
throws MojoExecutionException
{
RemoteRepository repo = createReferenceRepo();
ReferenceBuildinfoUtil rmb = new ReferenceBuildinfoUtil( getLog(), referenceDir, artifacts, artifactFactory,
repoSystem, repoSession, artifactHandlerManager );
return rmb.downloadOrCreateReferenceBuildinfo( repo, project, buildinfoFile, mono );
}
private void compareWithReference( Map artifacts, File referenceBuildinfo )
throws MojoExecutionException
{
Properties actual = BuildInfoWriter.loadOutputProperties( buildinfoFile );
Properties reference = BuildInfoWriter.loadOutputProperties( referenceBuildinfo );
int ok = 0;
List okFilenames = new ArrayList<>();
List koFilenames = new ArrayList<>();
List diffoscopes = new ArrayList<>();
File referenceDir = referenceBuildinfo.getParentFile();
for ( Map.Entry entry : artifacts.entrySet() )
{
Artifact artifact = entry.getKey();
String prefix = entry.getValue();
String[] checkResult = checkArtifact( artifact, prefix, reference, actual, referenceDir );
String filename = checkResult[0];
String diffoscope = checkResult[1];
if ( diffoscope == null )
{
ok++;
okFilenames.add( filename );
}
else
{
koFilenames.add( filename );
diffoscopes.add( diffoscope );
}
}
int ko = artifacts.size() - ok;
int missing = reference.size() / 3 /* 3 property keys par file: filename, length and checksums.sha512 */;
if ( ko + missing > 0 )
{
getLog().warn( "Reproducible Build output summary: " + MessageUtils.buffer().success( ok + " files ok" )
+ ", " + MessageUtils.buffer().failure( ko + " different" )
+ ( ( missing == 0 ) ? "" : ( ", " + MessageUtils.buffer().warning( missing + " missing" ) ) ) );
getLog().warn( "see " + MessageUtils.buffer().project( "diff " + relative( referenceBuildinfo ) + " "
+ relative( buildinfoFile ) ).toString() );
getLog().warn( "see also https://maven.apache.org/guides/mini/guide-reproducible-builds.html" );
}
else
{
getLog().info( "Reproducible Build output summary: " + MessageUtils.buffer().success( ok + " files ok" ) );
}
// save .compare file
File buildcompare = new File( buildinfoFile.getParentFile(),
buildinfoFile.getName().replaceFirst( ".buildinfo$", ".buildcompare" ) );
try ( PrintWriter p =
new PrintWriter( new BufferedWriter( new OutputStreamWriter( new FileOutputStream( buildcompare ),
StandardCharsets.UTF_8 ) ) ) )
{
p.println( "version=" + project.getVersion() );
p.println( "ok=" + ok );
p.println( "ko=" + ko );
p.println( "okFiles=\"" + StringUtils.join( okFilenames.iterator(), " " ) + '"' );
p.println( "koFiles=\"" + StringUtils.join( koFilenames.iterator(), " " ) + '"' );
Properties ref = PropertyUtils.loadOptionalProperties( referenceBuildinfo );
String v = ref.getProperty( "java.version" );
if ( v != null )
{
p.println( "reference_java_version=\"" + v + '"' );
}
v = ref.getProperty( "os.name" );
if ( v != null )
{
p.println( "reference_os_name=\"" + v + '"' );
}
for ( String diffoscope : diffoscopes )
{
p.print( "# " );
p.println( diffoscope );
}
getLog().info( "Reproducible Build output comparison saved to " + buildcompare );
}
catch ( IOException e )
{
throw new MojoExecutionException( "Error creating file " + buildcompare, e );
}
copyAggregateToRoot( buildcompare );
}
// { filename, diffoscope }
private String[] checkArtifact( Artifact artifact, String prefix, Properties reference, Properties actual,
File referenceDir )
{
String actualFilename = (String) actual.remove( prefix + ".filename" );
String actualLength = (String) actual.remove( prefix + ".length" );
String actualSha512 = (String) actual.remove( prefix + ".checksums.sha512" );
String referencePrefix = findPrefix( reference, actualFilename );
String referenceLength = (String) reference.remove( referencePrefix + ".length" );
String referenceSha512 = (String) reference.remove( referencePrefix + ".checksums.sha512" );
String issue = null;
if ( !actualLength.equals( referenceLength ) )
{
issue = "size";
}
else if ( !actualSha512.equals( referenceSha512 ) )
{
issue = "sha512";
}
if ( issue != null )
{
String diffoscope = diffoscope( artifact, referenceDir );
getLog().warn( issue + " mismatch " + MessageUtils.buffer().strong( actualFilename ) + ": investigate with "
+ MessageUtils.buffer().project( diffoscope ) );
return new String[] { actualFilename, diffoscope };
}
return new String[] { actualFilename, null };
}
private String diffoscope( Artifact a, File referenceDir )
{
File actual = a.getFile();
// notice: actual file name may have been defined in pom
// reference file name is taken from repository format
File reference = new File( referenceDir, getRepositoryFilename( a ) );
if ( ( actual == null ) || ( reference == null ) )
{
return "missing file for " + a.getId() + " reference = "
+ ( reference == null ? "null" : relative( reference ) ) + " actual = "
+ ( actual == null ? "null" : relative( actual ) );
}
return "diffoscope " + relative( reference ) + " " + relative( actual );
}
private String getRepositoryFilename( Artifact a )
{
String path = artifactRepositoryLayout.pathOf( a );
return path.substring( path.lastIndexOf( '/' ) );
}
private String relative( File file )
{
File basedir = getExecutionRoot().getBasedir();
int length = basedir.getPath().length();
String path = file.getPath();
return path.substring( length + 1 );
}
private static String findPrefix( Properties reference, String actualFilename )
{
for ( String name : reference.stringPropertyNames() )
{
if ( name.endsWith( ".filename" ) && actualFilename.equals( reference.getProperty( name ) ) )
{
reference.remove( name );
return name.substring( 0, name.length() - ".filename".length() );
}
}
return null;
}
private RemoteRepository createReferenceRepo()
throws MojoExecutionException
{
if ( referenceRepo.contains( "::" ) )
{
// id::url
int index = referenceRepo.indexOf( "::" );
String id = referenceRepo.substring( 0, index );
String url = referenceRepo.substring( index + 2 );
return createDeploymentArtifactRepository( id, url );
}
else if ( referenceRepo.contains( ":" ) )
{
// url, will use default "reference" id
return createDeploymentArtifactRepository( "reference", referenceRepo );
}
// id
for ( RemoteRepository repo : remoteRepos )
{
if ( referenceRepo.equals( repo.getId() ) )
{
return repo;
}
}
throw new MojoExecutionException( "Could not find repository with id = " + referenceRepo );
}
private static RemoteRepository createDeploymentArtifactRepository( String id, String url )
{
return new RemoteRepository.Builder( id, "default", url ).build();
}
}
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