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https://issues.apache.org/jira/browse/MNG-6869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17687065#comment-17687065
]
ASF GitHub Bot commented on MNG-6869:
-------------------------------------
rmannibucau commented on code in PR #995:
URL: https://github.com/apache/maven/pull/995#discussion_r1102733350
##########
maven-embedder/src/main/java/org/apache/maven/cli/MavenStatusCommand.java:
##########
@@ -0,0 +1,217 @@
+/*
+ * 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.
+ */
+package org.apache.maven.cli;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URI;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.apache.maven.api.ArtifactCoordinate;
+import org.apache.maven.api.Session;
+import org.apache.maven.api.services.ArtifactResolver;
+import org.apache.maven.api.services.ArtifactResolverException;
+import org.apache.maven.api.services.ArtifactResolverResult;
+import org.apache.maven.artifact.repository.ArtifactRepository;
+import org.apache.maven.bridge.MavenRepositorySystem;
+import org.apache.maven.execution.DefaultMavenExecutionResult;
+import org.apache.maven.execution.MavenExecutionRequest;
+import org.apache.maven.execution.MavenExecutionRequestPopulationException;
+import org.apache.maven.execution.MavenExecutionRequestPopulator;
+import org.apache.maven.execution.MavenSession;
+import org.apache.maven.internal.aether.DefaultRepositorySystemSessionFactory;
+import org.apache.maven.internal.impl.DefaultArtifactCoordinate;
+import org.apache.maven.internal.impl.DefaultSession;
+import org.apache.maven.internal.impl.DefaultSessionFactory;
+import org.apache.maven.session.scope.internal.SessionScope;
+import org.codehaus.plexus.PlexusContainer;
+import
org.codehaus.plexus.component.repository.exception.ComponentLookupException;
+import org.eclipse.aether.RepositorySystemSession;
+import org.eclipse.aether.artifact.Artifact;
+import org.eclipse.aether.artifact.DefaultArtifact;
+import org.eclipse.aether.resolution.ArtifactResolutionException;
+import org.eclipse.aether.resolution.ArtifactResult;
+import org.eclipse.aether.transfer.ArtifactNotFoundException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class MavenStatusCommand {
+ private static final Logger LOGGER =
LoggerFactory.getLogger(MavenStatusCommand.class);
+
+ /**
+ * In order to verify artifacts can be downloaded from the remote
repositories we want to resolve an actual
+ * artifact. The Apache Maven artifact was chosen as it eventually, be it
by proxy, mirror or directly, will be
+ * gathered from the central repository. The version is chosen arbitrarily
since any listed should work.
+ */
+ public static final Artifact APACHE_MAVEN_ARTIFACT =
+ new DefaultArtifact("org.apache.maven", "apache-maven", null,
"pom", "3.8.6");
+
+ private final MavenExecutionRequestPopulator
mavenExecutionRequestPopulator;
+ private final ArtifactResolver artifactResolver;
+ private final RemoteRepositoryConnectionVerifier
remoteRepositoryConnectionVerifier;
+ private final DefaultSessionFactory defaultSessionFactory;
+ private final DefaultRepositorySystemSessionFactory repoSession;
+ private final MavenRepositorySystem repositorySystem;
+ private final PlexusContainer container;
+ private final SessionScope sessionScope;
+ private Path tempLocalRepository;
+
+ public MavenStatusCommand(final PlexusContainer container) throws
ComponentLookupException {
+ this.container = container;
+ this.remoteRepositoryConnectionVerifier = new
RemoteRepositoryConnectionVerifier(container);
+ this.mavenExecutionRequestPopulator =
container.lookup(MavenExecutionRequestPopulator.class);
+ this.artifactResolver = container.lookup(ArtifactResolver.class);
+ this.defaultSessionFactory =
container.lookup(DefaultSessionFactory.class);
+ this.repoSession =
container.lookup(DefaultRepositorySystemSessionFactory.class);
+ this.sessionScope = container.lookup(SessionScope.class);
+ this.repositorySystem = container.lookup(MavenRepositorySystem.class);
+ }
+
+ public List<String> verify(final MavenExecutionRequest cliRequest) throws
MavenExecutionRequestPopulationException {
+ final MavenExecutionRequest mavenExecutionRequest =
mavenExecutionRequestPopulator.populateDefaults(cliRequest);
+
+ final ArtifactRepository localRepository =
cliRequest.getLocalRepository();
+
+ final List<String> localRepositoryIssues =
+
verifyLocalRepository(Paths.get(URI.create(localRepository.getUrl())));
+
+ // We overwrite the local repository with a temporary folder to avoid
using a cached version of the artifact.
+ setTemporaryLocalRepositoryPathOnRequest(cliRequest);
+
+ final List<String> remoteRepositoryIssues =
+
verifyRemoteRepositoryConnections(cliRequest.getRemoteRepositories(),
mavenExecutionRequest);
+ final List<String> artifactResolutionIssues =
verifyArtifactResolution(mavenExecutionRequest);
+
+ cleanupTempFiles();
+
+ // Collect all issues into a single list
+ return Stream.of(localRepositoryIssues, remoteRepositoryIssues,
artifactResolutionIssues)
+ .flatMap(Collection::stream)
+ .collect(Collectors.toList());
+ }
+
+ private void cleanupTempFiles() {
+ if (tempLocalRepository != null) {
+ try (Stream<Path> files = Files.walk(tempLocalRepository)) {
+ files.sorted(Comparator.reverseOrder()) // Sort in reverse
order so that directories are deleted last
+ .map(Path::toFile)
+ .forEach(File::delete);
+ } catch (IOException ioe) {
+ LOGGER.debug("Failed to delete temporary local repository",
ioe);
+ }
+ }
+ }
+
+ private void setTemporaryLocalRepositoryPathOnRequest(final
MavenExecutionRequest request) {
+ try {
+ tempLocalRepository =
Files.createTempDirectory("mvn-status").toAbsolutePath();
+ request.setLocalRepositoryPath(tempLocalRepository.toString());
+
request.setLocalRepository(repositorySystem.createLocalRepository(request,
tempLocalRepository.toFile()));
+ } catch (Exception ex) {
+ LOGGER.debug("Could not create temporary local repository", ex);
+ LOGGER.warn("Artifact resolution test is less accurate as it may
use earlier resolution results.");
+ }
+ }
+
+ private List<String> verifyRemoteRepositoryConnections(
+ final List<ArtifactRepository> remoteRepositories, final
MavenExecutionRequest mavenExecutionRequest) {
+ final List<String> issues = new ArrayList<>();
+
+ for (ArtifactRepository remoteRepository : remoteRepositories) {
+ final RepositorySystemSession repositorySession =
repoSession.newRepositorySession(mavenExecutionRequest);
+ remoteRepositoryConnectionVerifier
+ .verifyConnectionToRemoteRepository(repositorySession,
remoteRepository)
+ .ifPresent(issues::add);
+ }
+
+ return issues;
+ }
+
+ private List<String> verifyArtifactResolution(final MavenExecutionRequest
mavenExecutionRequest) {
Review Comment:
From my experience this is not testing a random artifact which works but
more enabling the aether logs which help, ultimately logging the request to be
able to replay it with curl to do the check. Rest is random tests which can
easily be proven false positive/negative due to proxies (correct) configuration.
> New flag to verify the status
> -----------------------------
>
> Key: MNG-6869
> URL: https://issues.apache.org/jira/browse/MNG-6869
> Project: Maven
> Issue Type: New Feature
> Reporter: Robert Scholte
> Assignee: Maarten Mulders
> Priority: Major
>
> While working on INFRA-19861 we had issues with invalid changes in the
> settings.xml.
> This was detected too late. After installation {{mvn --version}} is called,
> but it will only show the version of Maven.
> It would be better to have a flag that verifies it a bit more:
> - can Maven read/write to the local repository
> - can Maven access all predefined repositories? (does the proxy work?)
> This gives a much better feedback if Maven can do its job.
> Current workaround: call something like {{mvn help:evaluate
> -Dexpression=settings.localRepository -q -DforceStdout}}
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