/
AbstractGitSCMSource.java
1665 lines (1584 loc) · 75.5 KB
/
AbstractGitSCMSource.java
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/*
* The MIT License
*
* Copyright (c) 2013-2017, CloudBees, Inc., Stephen Connolly, Amadeus IT Group.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package jenkins.plugins.git;
import com.cloudbees.plugins.credentials.CredentialsMatchers;
import com.cloudbees.plugins.credentials.CredentialsNameProvider;
import com.cloudbees.plugins.credentials.CredentialsProvider;
import com.cloudbees.plugins.credentials.common.StandardCredentials;
import com.cloudbees.plugins.credentials.common.StandardUsernameCredentials;
import com.cloudbees.plugins.credentials.domains.URIRequirementBuilder;
import edu.umd.cs.findbugs.annotations.CheckForNull;
import edu.umd.cs.findbugs.annotations.NonNull;
import edu.umd.cs.findbugs.annotations.Nullable;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import hudson.EnvVars;
import hudson.RestrictedSince;
import hudson.Util;
import hudson.model.Action;
import hudson.model.Actionable;
import hudson.model.Item;
import hudson.model.TaskListener;
import hudson.plugins.git.Branch;
import hudson.plugins.git.GitException;
import hudson.plugins.git.GitSCM;
import hudson.plugins.git.GitTool;
import hudson.plugins.git.Revision;
import hudson.plugins.git.UserRemoteConfig;
import hudson.plugins.git.browser.GitRepositoryBrowser;
import hudson.plugins.git.extensions.GitSCMExtension;
import hudson.plugins.git.util.Build;
import hudson.plugins.git.util.BuildChooser;
import hudson.plugins.git.util.BuildChooserContext;
import hudson.plugins.git.util.BuildData;
import hudson.plugins.git.util.GitUtils;
import hudson.scm.SCM;
import hudson.security.ACL;
import java.io.File;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.TreeSet;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.regex.Pattern;
import jenkins.model.Jenkins;
import jenkins.plugins.git.traits.GitBrowserSCMSourceTrait;
import jenkins.plugins.git.traits.GitSCMExtensionTrait;
import jenkins.plugins.git.traits.GitToolSCMSourceTrait;
import jenkins.plugins.git.traits.RefSpecsSCMSourceTrait;
import jenkins.plugins.git.traits.RemoteNameSCMSourceTrait;
import jenkins.scm.api.SCMFile;
import jenkins.scm.api.SCMFileSystem;
import jenkins.scm.api.SCMHead;
import jenkins.scm.api.SCMHeadCategory;
import jenkins.scm.api.SCMHeadEvent;
import jenkins.scm.api.SCMHeadObserver;
import jenkins.scm.api.SCMProbe;
import jenkins.scm.api.SCMProbeStat;
import jenkins.scm.api.SCMRevision;
import jenkins.scm.api.SCMSource;
import jenkins.scm.api.SCMSourceCriteria;
import jenkins.scm.api.SCMSourceEvent;
import jenkins.scm.api.SCMSourceOwner;
import jenkins.scm.api.metadata.PrimaryInstanceMetadataAction;
import jenkins.scm.api.trait.SCMSourceRequest;
import jenkins.scm.api.trait.SCMSourceTrait;
import jenkins.scm.api.trait.SCMTrait;
import jenkins.scm.impl.trait.WildcardSCMHeadFilterTrait;
import jenkins.scm.impl.trait.WildcardSCMSourceFilterTrait;
import net.jcip.annotations.GuardedBy;
import org.apache.commons.lang.StringUtils;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevTree;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.transport.RefSpec;
import org.eclipse.jgit.transport.URIish;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.jenkinsci.plugins.gitclient.FetchCommand;
import org.jenkinsci.plugins.gitclient.Git;
import org.jenkinsci.plugins.gitclient.GitClient;
import org.kohsuke.accmod.Restricted;
import org.kohsuke.accmod.restrictions.DoNotUse;
import org.kohsuke.accmod.restrictions.NoExternalUse;
import org.kohsuke.stapler.export.Exported;
/**
* Base class for {@link SCMSource} implementations that produce {@link GitSCM} implementations.
*
* @since 2.0
*/
public abstract class AbstractGitSCMSource extends SCMSource {
/**
* The default remote name to use when configuring the ref specs to use with fetch operations.
*
* @since 3.4.0
*/
public static final String DEFAULT_REMOTE_NAME = "origin";
/**
* The placeholder to use in ref spec templates in order to correctly ensure that the ref spec remote name
* matches the remote name.
* <p>
* The template uses {@code @{...}} as that is an illegal sequence in a remote name
*
* @see <a href="https://github.com/git/git/blob/027a3b943b444a3e3a76f9a89803fc10245b858f/refs.c#L61-L68">git
* source code rules on ref spec names</a>
* @since 3.4.0
*/
public static final String REF_SPEC_REMOTE_NAME_PLACEHOLDER_STR = "@{remote}";
/**
* The regex for {@link #REF_SPEC_REMOTE_NAME_PLACEHOLDER_STR}.
*
* @since 3.4.0
*/
public static final String REF_SPEC_REMOTE_NAME_PLACEHOLDER = "(?i)"+Pattern.quote(REF_SPEC_REMOTE_NAME_PLACEHOLDER_STR);
/**
* The default ref spec template.
*
* @since 3.4.0
*/
public static final String REF_SPEC_DEFAULT =
"+refs/heads/*:refs/remotes/" + REF_SPEC_REMOTE_NAME_PLACEHOLDER_STR + "/*";
/**
* Keep one lock per cache directory. Lazy populated, but never purge, except on restart.
*/
private static final ConcurrentMap<String, Lock> cacheLocks = new ConcurrentHashMap<>();
private static final Logger LOGGER = Logger.getLogger(AbstractGitSCMSource.class.getName());
public AbstractGitSCMSource() {
}
@Deprecated
public AbstractGitSCMSource(String id) {
setId(id);
}
@CheckForNull
public abstract String getCredentialsId();
/**
* @return Git remote URL
*/
public abstract String getRemote();
/**
* @deprecated use {@link WildcardSCMSourceFilterTrait}
* @return the includes.
*/
@Deprecated
@Restricted(NoExternalUse.class)
@RestrictedSince("3.4.0")
public String getIncludes() {
WildcardSCMHeadFilterTrait trait = SCMTrait.find(getTraits(), WildcardSCMHeadFilterTrait.class);
return trait != null ? trait.getIncludes() : "*";
}
/**
* @return the excludes.
* @deprecated use {@link WildcardSCMSourceFilterTrait}
*/
@Deprecated
@Restricted(NoExternalUse.class)
@RestrictedSince("3.4.0")
public String getExcludes() {
WildcardSCMHeadFilterTrait trait = SCMTrait.find(getTraits(), WildcardSCMHeadFilterTrait.class);
return trait != null ? trait.getExcludes() : "";
}
/**
* Gets {@link GitRepositoryBrowser} to be used with this SCMSource.
* @return Repository browser or {@code null} if the default tool should be used.
* @since 2.5.1
* @deprecated use {@link GitBrowserSCMSourceTrait}
*/
@CheckForNull
@Deprecated
@Restricted(NoExternalUse.class)
@RestrictedSince("3.4.0")
public GitRepositoryBrowser getBrowser() {
GitBrowserSCMSourceTrait trait = SCMTrait.find(getTraits(), GitBrowserSCMSourceTrait.class);
return trait != null ? trait.getBrowser() : null;
}
/**
* Gets Git tool to be used for this SCM Source.
* @return Git Tool or {@code null} if the default tool should be used.
* @since 2.5.1
* @deprecated use {@link GitToolSCMSourceTrait}
*/
@CheckForNull
@Deprecated
@Restricted(NoExternalUse.class)
@RestrictedSince("3.4.0")
public String getGitTool() {
GitToolSCMSourceTrait trait = SCMTrait.find(getTraits(), GitToolSCMSourceTrait.class);
return trait != null ? trait.getGitTool() : null;
}
/**
* Gets list of extensions, which should be used with this branch source.
* @return List of Extensions to be used. May be empty
* @since 2.5.1
* @deprecated use corresponding {@link GitSCMExtensionTrait} (and if there isn't one then likely the
* {@link GitSCMExtension} is not appropriate to use in the context of a {@link SCMSource})
*/
@NonNull
@Deprecated
@Restricted(NoExternalUse.class)
@RestrictedSince("3.4.0")
public List<GitSCMExtension> getExtensions() {
List<GitSCMExtension> extensions = new ArrayList<>();
for (SCMSourceTrait t : getTraits()) {
if (t instanceof GitSCMExtensionTrait) {
extensions.add(((GitSCMExtensionTrait) t).getExtension());
}
}
return Collections.unmodifiableList(extensions);
}
/**
* Returns the {@link SCMSourceTrait} instances for this {@link AbstractGitSCMSource}.
* @return the {@link SCMSourceTrait} instances
* @since 3.4.0
*/
@NonNull
public List<SCMSourceTrait> getTraits() {
// Always return empty list (we expect subclasses to override)
return Collections.emptyList();
}
/**
* @deprecated use {@link RemoteNameSCMSourceTrait}
* @return the remote name.
*/
@Deprecated
@Restricted(NoExternalUse.class)
@RestrictedSince("3.4.0")
public String getRemoteName() {
RemoteNameSCMSourceTrait trait = SCMTrait.find(getTraits(), RemoteNameSCMSourceTrait.class);
return trait != null ? trait.getRemoteName() : DEFAULT_REMOTE_NAME;
}
/**
* Resolves the {@link GitTool}.
* @return the {@link GitTool}.
* @deprecated use {@link #resolveGitTool(String)}.
*/
@CheckForNull
@Deprecated
@Restricted(DoNotUse.class)
@RestrictedSince("3.4.0")
protected GitTool resolveGitTool() {
return resolveGitTool(getGitTool());
}
/**
* Resolves the {@link GitTool}.
* @param gitTool the {@link GitTool#getName()} to resolve.
* @return the {@link GitTool}
* @since 3.4.0
* @deprecated Use {@link #resolveGitTool(String, TaskListener)} instead
*/
@CheckForNull
@Deprecated
protected GitTool resolveGitTool(String gitTool) {
return resolveGitTool(gitTool, TaskListener.NULL);
}
protected GitTool resolveGitTool(String gitTool, TaskListener listener) {
final Jenkins jenkins = Jenkins.get();
return GitUtils.resolveGitTool(gitTool, jenkins, null, TaskListener.NULL);
}
private interface Retriever<T> {
default T run(GitClient client, String remoteName) throws IOException, InterruptedException {
throw new AbstractMethodError("Not implemented");
}
}
private interface Retriever2<T> extends Retriever<T> {
T run(GitClient client, String remoteName, FetchCommand fetch) throws IOException, InterruptedException;
}
@NonNull
private <T, C extends GitSCMSourceContext<C, R>, R extends GitSCMSourceRequest> T doRetrieve(Retriever<T> retriever,
@NonNull C context,
@NonNull TaskListener listener,
boolean prune)
throws IOException, InterruptedException {
return doRetrieve(retriever, context, listener, prune, false);
}
@NonNull
private <T, C extends GitSCMSourceContext<C, R>, R extends GitSCMSourceRequest> T doRetrieve(Retriever<T> retriever,
@NonNull C context,
@NonNull TaskListener listener,
boolean prune, boolean delayFetch)
throws IOException, InterruptedException {
String cacheEntry = getCacheEntry();
Lock cacheLock = getCacheLock(cacheEntry);
cacheLock.lock();
try {
File cacheDir = getCacheDir(cacheEntry);
Git git = Git.with(listener, new EnvVars(EnvVars.masterEnvVars)).in(cacheDir);
GitTool tool = resolveGitTool(context.gitTool(), listener);
if (tool != null) {
git.using(tool.getGitExe());
}
GitClient client = git.getClient();
client.addDefaultCredentials(getCredentials());
if (!client.hasGitRepo()) {
listener.getLogger().println("Creating git repository in " + cacheDir);
client.init();
}
String remoteName = context.remoteName();
listener.getLogger().println("Setting " + remoteName + " to " + getRemote());
client.setRemoteUrl(remoteName, getRemote());
listener.getLogger().println((prune ? "Fetching & pruning " : "Fetching ") + remoteName + "...");
FetchCommand fetch = client.fetch_();
fetch = fetch.prune(prune);
URIish remoteURI = null;
try {
remoteURI = new URIish(remoteName);
} catch (URISyntaxException ex) {
listener.getLogger().println("URI syntax exception for '" + remoteName + "' " + ex);
}
final FetchCommand fetchCommand = fetch.from(remoteURI, context.asRefSpecs());
if (!delayFetch) {
fetchCommand.execute();
} else if (retriever instanceof Retriever2) {
return ((Retriever2<T>)retriever).run(client, remoteName, fetchCommand);
}
return retriever.run(client, remoteName);
} finally {
cacheLock.unlock();
}
}
/**
* {@inheritDoc}
*/
@CheckForNull
@Override
protected SCMRevision retrieve(@NonNull final SCMHead head, @NonNull final TaskListener listener)
throws IOException, InterruptedException {
GitSCMSourceContext context = new GitSCMSourceContext<>(null, SCMHeadObserver.none()).withTraits(getTraits());
GitSCMTelescope telescope = GitSCMTelescope.of(this);
if (telescope != null) {
String remote = getRemote();
StandardUsernameCredentials credentials = getCredentials();
telescope.validate(remote, credentials);
return telescope.getRevision(remote, credentials, head);
}
//TODO write test using GitRefSCMHead
return doRetrieve(new Retriever<SCMRevision>() {
@Override
public SCMRevision run(GitClient client, String remoteName) throws IOException, InterruptedException {
if (head instanceof GitTagSCMHead) {
try {
ObjectId objectId = client.revParse(Constants.R_TAGS + head.getName());
return new GitTagSCMRevision((GitTagSCMHead) head, objectId.name());
} catch (GitException e) {
// tag does not exist
return null;
}
} else if (head instanceof GitBranchSCMHead) {
for (Branch b : client.getRemoteBranches()) {
String branchName = StringUtils.removeStart(b.getName(), remoteName + "/");
if (branchName.equals(head.getName())) {
return new GitBranchSCMRevision((GitBranchSCMHead)head, b.getSHA1String());
}
}
} else if (head instanceof GitRefSCMHead) {
try {
ObjectId objectId = client.revParse(((GitRefSCMHead) head).getRef());
return new GitRefSCMRevision((GitRefSCMHead)head, objectId.name());
} catch (GitException e) {
// ref could not be found
return null;
}
} else {
//Entering default/legacy git retrieve code path
for (Branch b : client.getRemoteBranches()) {
String branchName = StringUtils.removeStart(b.getName(), remoteName + "/");
if (branchName.equals(head.getName())) {
return new SCMRevisionImpl(head, b.getSHA1String());
}
}
}
return null;
}
},
context,
listener, /* we don't prune remotes here, as we just want one head's revision */false);
}
/**
* {@inheritDoc}
*/
@Override
@SuppressFBWarnings(value="SE_BAD_FIELD", justification="Known non-serializable this")
protected void retrieve(@CheckForNull SCMSourceCriteria criteria,
@NonNull SCMHeadObserver observer,
@CheckForNull SCMHeadEvent<?> event,
@NonNull final TaskListener listener)
throws IOException, InterruptedException {
final GitSCMSourceContext context =
new GitSCMSourceContext<>(criteria, observer).withTraits(getTraits());
final GitSCMTelescope telescope = GitSCMTelescope.of(this);
if (telescope != null) {
final String remote = getRemote();
final StandardUsernameCredentials credentials = getCredentials();
telescope.validate(remote, credentials);
Set<GitSCMTelescope.ReferenceType> referenceTypes = new HashSet<>();
if (context.wantBranches()) {
referenceTypes.add(GitSCMTelescope.ReferenceType.HEAD);
}
if (context.wantTags()) {
referenceTypes.add(GitSCMTelescope.ReferenceType.TAG);
}
//TODO JENKINS-51134 DiscoverOtherRefsTrait
if (!referenceTypes.isEmpty()) {
try (GitSCMSourceRequest request = context.newRequest(AbstractGitSCMSource.this, listener)) {
listener.getLogger().println("Listing remote references...");
Iterable<SCMRevision> revisions = telescope.getRevisions(remote, credentials, referenceTypes);
if (context.wantBranches()) {
listener.getLogger().println("Checking branches...");
int count = 0;
for (final SCMRevision revision : revisions) {
if (!(revision instanceof SCMRevisionImpl) || (revision instanceof GitTagSCMRevision)) {
continue;
}
count++;
if (request.process(revision.getHead(),
new SCMSourceRequest.RevisionLambda<SCMHead, SCMRevisionImpl>() {
@NonNull
@Override
public SCMRevisionImpl create(@NonNull SCMHead head)
throws IOException, InterruptedException {
listener.getLogger()
.println(" Checking branch " + revision.getHead().getName());
return (SCMRevisionImpl) revision;
}
},
new SCMSourceRequest.ProbeLambda<SCMHead, SCMRevisionImpl>() {
@NonNull
@Override
public SCMSourceCriteria.Probe create(@NonNull SCMHead head,
@NonNull SCMRevisionImpl revision)
throws IOException, InterruptedException {
return new TelescopingSCMProbe(telescope, remote, credentials, revision);
}
}, new SCMSourceRequest.Witness() {
@Override
public void record(@NonNull SCMHead head, SCMRevision revision,
boolean isMatch) {
if (isMatch) {
listener.getLogger().println(" Met criteria");
} else {
listener.getLogger().println(" Does not meet criteria");
}
}
}
)) {
listener.getLogger().format("Processed %d branches (query complete)%n", count);
return;
}
}
listener.getLogger().format("Processed %d branches%n", count);
}
if (context.wantTags()) {
listener.getLogger().println("Checking tags...");
int count = 0;
for (final SCMRevision revision : revisions) {
if (!(revision instanceof GitTagSCMRevision)) {
continue;
}
count++;
if (request.process((GitTagSCMHead) revision.getHead(),
new SCMSourceRequest.RevisionLambda<GitTagSCMHead, GitTagSCMRevision>() {
@NonNull
@Override
public GitTagSCMRevision create(@NonNull GitTagSCMHead head)
throws IOException, InterruptedException {
listener.getLogger()
.println(" Checking tag " + revision.getHead().getName());
return (GitTagSCMRevision) revision;
}
},
new SCMSourceRequest.ProbeLambda<GitTagSCMHead, GitTagSCMRevision>() {
@NonNull
@Override
public SCMSourceCriteria.Probe create(@NonNull final GitTagSCMHead head,
@NonNull GitTagSCMRevision revision)
throws IOException, InterruptedException {
return new TelescopingSCMProbe(telescope, remote, credentials, revision);
}
}, new SCMSourceRequest.Witness() {
@Override
public void record(@NonNull SCMHead head, SCMRevision revision,
boolean isMatch) {
if (isMatch) {
listener.getLogger().println(" Met criteria");
} else {
listener.getLogger().println(" Does not meet criteria");
}
}
}
)) {
listener.getLogger().format("Processed %d tags (query complete)%n", count);
return;
}
}
listener.getLogger().format("Processed %d tags%n", count);
}
}
return;
}
}
doRetrieve(new Retriever2<Void>() {
@Override
public Void run(GitClient client, String remoteName, FetchCommand fetch) throws IOException, InterruptedException {
final Map<String, ObjectId> remoteReferences;
if (context.wantBranches() || context.wantTags() || context.wantOtherRefs()) {
listener.getLogger().println("Listing remote references...");
boolean headsOnly = !context.wantOtherRefs() && context.wantBranches();
boolean tagsOnly = !context.wantOtherRefs() && context.wantTags();
remoteReferences = client.getRemoteReferences(
client.getRemoteUrl(remoteName), null, headsOnly, tagsOnly
);
} else {
remoteReferences = Collections.emptyMap();
}
fetch.execute();
try (Repository repository = client.getRepository();
RevWalk walk = new RevWalk(repository);
GitSCMSourceRequest request = context.newRequest(AbstractGitSCMSource.this, listener)) {
if (context.wantBranches()) {
discoverBranches(repository, walk, request, remoteReferences);
}
if (context.wantTags()) {
discoverTags(repository, walk, request, remoteReferences);
}
if (context.wantOtherRefs()) {
discoverOtherRefs(repository, walk, request, remoteReferences,
(Collection<GitSCMSourceContext.RefNameMapping>)context.getRefNameMappings());
}
}
return null;
}
private void discoverOtherRefs(final Repository repository,
final RevWalk walk, GitSCMSourceRequest request,
Map<String, ObjectId> remoteReferences,
Collection<GitSCMSourceContext.RefNameMapping> wantedRefs)
throws IOException, InterruptedException {
listener.getLogger().println("Checking other refs...");
walk.setRetainBody(false);
int count = 0;
for (final Map.Entry<String, ObjectId> ref : remoteReferences.entrySet()) {
if (ref.getKey().startsWith(Constants.R_HEADS) || ref.getKey().startsWith(Constants.R_TAGS)) {
continue;
}
for (GitSCMSourceContext.RefNameMapping otherRef : wantedRefs) {
if (!otherRef.matches(ref.getKey())) {
continue;
}
final String refName = otherRef.getName(ref.getKey());
if (refName == null) {
listener.getLogger().println(" Possible badly configured name mapping (" + otherRef.getName() + ") (for " + ref.getKey() + ") ignoring.");
continue;
}
count++;
if (request.process(new GitRefSCMHead(refName, ref.getKey()),
new SCMSourceRequest.IntermediateLambda<ObjectId>() {
@Nullable
@Override
public ObjectId create() throws IOException, InterruptedException {
listener.getLogger().println(" Checking ref " + refName + " (" + ref.getKey() + ")");
return ref.getValue();
}
},
new SCMSourceRequest.ProbeLambda<GitRefSCMHead, ObjectId>() {
@NonNull
@Override
public SCMSourceCriteria.Probe create(@NonNull GitRefSCMHead head,
@Nullable ObjectId revisionInfo)
throws IOException, InterruptedException {
RevCommit commit = walk.parseCommit(revisionInfo);
final long lastModified = TimeUnit.SECONDS.toMillis(commit.getCommitTime());
final RevTree tree = commit.getTree();
return new TreeWalkingSCMProbe(refName, lastModified, repository, tree);
}
}, new SCMSourceRequest.LazyRevisionLambda<GitRefSCMHead, SCMRevision, ObjectId>() {
@NonNull
@Override
public SCMRevision create(@NonNull GitRefSCMHead head, @Nullable ObjectId intermediate)
throws IOException, InterruptedException {
return new GitRefSCMRevision(head, ref.getValue().name());
}
}, new SCMSourceRequest.Witness() {
@Override
public void record(@NonNull SCMHead head, SCMRevision revision, boolean isMatch) {
if (isMatch) {
listener.getLogger().println(" Met criteria");
} else {
listener.getLogger().println(" Does not meet criteria");
}
}
}
)) {
listener.getLogger().format("Processed %d refs (query complete)%n", count);
return;
}
break;
}
}
listener.getLogger().format("Processed %d refs%n", count);
}
private void discoverBranches(final Repository repository,
final RevWalk walk, GitSCMSourceRequest request,
Map<String, ObjectId> remoteReferences)
throws IOException, InterruptedException {
listener.getLogger().println("Checking branches...");
walk.setRetainBody(false);
int count = 0;
for (final Map.Entry<String, ObjectId> ref : remoteReferences.entrySet()) {
if (!ref.getKey().startsWith(Constants.R_HEADS)) {
continue;
}
count++;
final String branchName = StringUtils.removeStart(ref.getKey(), Constants.R_HEADS);
if (request.process(new GitBranchSCMHead(branchName),
new SCMSourceRequest.IntermediateLambda<ObjectId>() {
@Nullable
@Override
public ObjectId create() throws IOException, InterruptedException {
listener.getLogger().println(" Checking branch " + branchName);
return ref.getValue();
}
},
new SCMSourceRequest.ProbeLambda<GitBranchSCMHead, ObjectId>() {
@NonNull
@Override
public SCMSourceCriteria.Probe create(@NonNull GitBranchSCMHead head,
@Nullable ObjectId revisionInfo)
throws IOException, InterruptedException {
RevCommit commit = walk.parseCommit(revisionInfo);
final long lastModified = TimeUnit.SECONDS.toMillis(commit.getCommitTime());
final RevTree tree = commit.getTree();
return new TreeWalkingSCMProbe(branchName, lastModified, repository, tree);
}
}, new SCMSourceRequest.LazyRevisionLambda<GitBranchSCMHead, SCMRevision, ObjectId>() {
@NonNull
@Override
public SCMRevision create(@NonNull GitBranchSCMHead head, @Nullable ObjectId intermediate)
throws IOException, InterruptedException {
return new GitBranchSCMRevision(head, ref.getValue().name());
}
}, new SCMSourceRequest.Witness() {
@Override
public void record(@NonNull SCMHead head, SCMRevision revision, boolean isMatch) {
if (isMatch) {
listener.getLogger().println(" Met criteria");
} else {
listener.getLogger().println(" Does not meet criteria");
}
}
}
)) {
listener.getLogger().format("Processed %d branches (query complete)%n", count);
return;
}
}
listener.getLogger().format("Processed %d branches%n", count);
}
private void discoverTags(final Repository repository,
final RevWalk walk, GitSCMSourceRequest request,
Map<String, ObjectId> remoteReferences)
throws IOException, InterruptedException {
listener.getLogger().println("Checking tags...");
walk.setRetainBody(false);
int count = 0;
for (final Map.Entry<String, ObjectId> ref : remoteReferences.entrySet()) {
if (!ref.getKey().startsWith(Constants.R_TAGS)) {
continue;
}
count++;
final String tagName = StringUtils.removeStart(ref.getKey(), Constants.R_TAGS);
RevCommit commit = walk.parseCommit(ref.getValue());
final long lastModified = TimeUnit.SECONDS.toMillis(commit.getCommitTime());
if (request.process(new GitTagSCMHead(tagName, lastModified),
new SCMSourceRequest.IntermediateLambda<ObjectId>() {
@Nullable
@Override
public ObjectId create() throws IOException, InterruptedException {
listener.getLogger().println(" Checking tag " + tagName);
return ref.getValue();
}
},
new SCMSourceRequest.ProbeLambda<GitTagSCMHead, ObjectId>() {
@NonNull
@Override
public SCMSourceCriteria.Probe create(@NonNull GitTagSCMHead head,
@Nullable ObjectId revisionInfo)
throws IOException, InterruptedException {
RevCommit commit = walk.parseCommit(revisionInfo);
final long lastModified = TimeUnit.SECONDS.toMillis(commit.getCommitTime());
final RevTree tree = commit.getTree();
return new TreeWalkingSCMProbe(tagName, lastModified, repository, tree);
}
}, new SCMSourceRequest.LazyRevisionLambda<GitTagSCMHead, GitTagSCMRevision, ObjectId>() {
@NonNull
@Override
public GitTagSCMRevision create(@NonNull GitTagSCMHead head, @Nullable ObjectId intermediate)
throws IOException, InterruptedException {
return new GitTagSCMRevision(head, ref.getValue().name());
}
}, new SCMSourceRequest.Witness() {
@Override
public void record(@NonNull SCMHead head, SCMRevision revision, boolean isMatch) {
if (isMatch) {
listener.getLogger().println(" Met criteria");
} else {
listener.getLogger().println(" Does not meet criteria");
}
}
}
)) {
listener.getLogger().format("Processed %d tags (query complete)%n", count);
return;
}
}
listener.getLogger().format("Processed %d tags%n", count);
}
}, context, listener, true, true);
}
/**
* {@inheritDoc}
*/
@CheckForNull
@Override
protected SCMRevision retrieve(@NonNull final String revision, @NonNull final TaskListener listener, @CheckForNull Item retrieveContext) throws IOException, InterruptedException {
final GitSCMSourceContext context =
new GitSCMSourceContext<>(null, SCMHeadObserver.none()).withTraits(getTraits());
final GitSCMTelescope telescope = GitSCMTelescope.of(this);
if (telescope != null) {
final String remote = getRemote();
final StandardUsernameCredentials credentials = getCredentials(retrieveContext);
telescope.validate(remote, credentials);
SCMRevision result = telescope.getRevision(remote, credentials, revision);
if (result != null) {
return result;
}
result = telescope.getRevision(remote, credentials, Constants.R_HEADS + revision);
if (result != null) {
return result;
}
result = telescope.getRevision(remote, credentials, Constants.R_TAGS + revision);
if (result != null) {
return result;
}
return null;
}
// first we need to figure out what the revision is. There are six possibilities:
// 1. A branch name (if we have that we can return quickly)
// 2. A tag name (if we have that we will need to fetch the tag to resolve the tag date)
// 3. A short/full revision hash that is the head revision of a branch (if we have that we can return quickly)
// 4. A remote refspec for example pull-requests/1/from
// 5. A short/full revision hash of a non default ref (non branch or tag but somewhere else under refs/)
// 6. A short revision hash that is the head revision of a branch (if we have that we can return quickly)
// 7. A short/full revision hash for a tag (we'll need to fetch the tag to resolve the tag date)
// 8. A short/full revision hash that is not the head revision of a branch (we'll need to fetch everything to
// try and resolve the hash from the history of one of the heads)
Git git = Git.with(listener, new EnvVars(EnvVars.masterEnvVars));
GitTool tool = resolveGitTool(context.gitTool(), listener);
if (tool != null) {
git.using(tool.getGitExe());
}
final GitClient client = git.getClient();
client.addDefaultCredentials(getCredentials(retrieveContext));
listener.getLogger().printf("Attempting to resolve %s from remote references...%n", revision);
boolean headsOnly = !context.wantOtherRefs() && context.wantBranches();
boolean tagsOnly = !context.wantOtherRefs() && context.wantTags();
Map<String, ObjectId> remoteReferences = client.getRemoteReferences(
getRemote(), null, headsOnly, tagsOnly
);
String tagName = null;
Set<String> shortNameMatches = new TreeSet<>();
String shortHashMatch = null;
Set<String> fullTagMatches = new TreeSet<>();
Set<String> fullHashMatches = new TreeSet<>();
String fullHashMatch = null;
GitRefSCMRevision candidateOtherRef = null;
for (Map.Entry<String,ObjectId> entry: remoteReferences.entrySet()) {
String name = entry.getKey();
String rev = entry.getValue().name();
if ("HEAD".equals(name)) {
//Skip HEAD as it should only appear during testing, not for standard bare repos iirc
continue;
}
if (name.equals(Constants.R_HEADS + revision)) {
listener.getLogger().printf("Found match: %s revision %s%n", name, rev);
// WIN!
return new GitBranchSCMRevision(new GitBranchSCMHead(revision), rev);
}
if (name.equals(Constants.R_TAGS+revision)) {
listener.getLogger().printf("Found match: %s revision %s%n", name, rev);
// WIN but not the good kind
tagName = revision;
context.wantBranches(false);
context.wantTags(true);
context.withoutRefSpecs();
break;
}
if (name.startsWith(Constants.R_HEADS) && revision.equalsIgnoreCase(rev)) {
listener.getLogger().printf("Found match: %s revision %s%n", name, rev);
// WIN!
return new GitBranchSCMRevision(new GitBranchSCMHead(StringUtils.removeStart(name, Constants.R_HEADS)), rev);
}
if (name.startsWith(Constants.R_TAGS) && revision.equalsIgnoreCase(rev)) {
listener.getLogger().printf("Candidate match: %s revision %s%n", name, rev);
// WIN but let's see if a branch also matches as that would save a fetch
fullTagMatches.add(name);
continue;
}
if((Constants.R_REFS + revision.toLowerCase(Locale.ENGLISH)).equals(name.toLowerCase(Locale.ENGLISH))) {
fullHashMatches.add(name);
if (fullHashMatch == null) {
fullHashMatch = rev;
}
continue;
}
if (rev.toLowerCase(Locale.ENGLISH).equals(revision.toLowerCase(Locale.ENGLISH))) {
fullHashMatches.add(name);
if (fullHashMatch == null) {
fullHashMatch = rev;
}
//Since it was a full match then the shortMatch below will also match, so just skip it
continue;
}
for (GitSCMSourceContext.RefNameMapping o : (Collection<GitSCMSourceContext.RefNameMapping>)context.getRefNameMappings()) {
if (o.matches(revision, name, rev)) {
candidateOtherRef = new GitRefSCMRevision(new GitRefSCMHead(revision, name), rev);
break;
}
}
if (rev.toLowerCase(Locale.ENGLISH).startsWith(revision.toLowerCase(Locale.ENGLISH))) {
shortNameMatches.add(name);
if (shortHashMatch == null) {
listener.getLogger().printf("Candidate partial match: %s revision %s%n", name, rev);
shortHashMatch = rev;
} else {
listener.getLogger().printf("Candidate partial match: %s revision %s%n", name, rev);
listener.getLogger().printf("Cannot resolve ambiguous short revision %s%n", revision);
return null;
}
}
}
if (!fullTagMatches.isEmpty()) {
// we just want a tag so we can do a minimal fetch
String name = StringUtils.removeStart(fullTagMatches.iterator().next(), Constants.R_TAGS);
listener.getLogger().printf("Selected match: %s revision %s%n", name, shortHashMatch);
tagName = name;
context.wantBranches(false);
context.wantTags(true);
context.withoutRefSpecs();
}
if (fullHashMatch != null) {
//since this would have been skipped if this was a head or a tag we can just return whatever
return new GitRefSCMRevision(new GitRefSCMHead(fullHashMatch, fullHashMatches.iterator().next()), fullHashMatch);
}
if (shortHashMatch != null) {
// woot this seems unambiguous
for (String name: shortNameMatches) {
if (name.startsWith(Constants.R_HEADS)) {
listener.getLogger().printf("Selected match: %s revision %s%n", name, shortHashMatch);
// WIN it's also a branch
return new GitBranchSCMRevision(new GitBranchSCMHead(StringUtils.removeStart(name, Constants.R_HEADS)),
shortHashMatch);
} else if (name.startsWith(Constants.R_TAGS)) {
tagName = StringUtils.removeStart(name, Constants.R_TAGS);
context.wantBranches(false);
context.wantTags(true);
context.withoutRefSpecs();
}
}
if (tagName != null) {
listener.getLogger().printf("Selected match: %s revision %s%n", tagName, shortHashMatch);
} else {
return new GitRefSCMRevision(new GitRefSCMHead(shortHashMatch, shortNameMatches.iterator().next()), shortHashMatch);
}
}
if (candidateOtherRef != null) {
return candidateOtherRef;
}
//if PruneStaleBranches it should take affect on the following retrievals
boolean pruneRefs = context.pruneRefs();
if (tagName != null) {
listener.getLogger().println(
"Resolving tag commit... (remote references may be a lightweight tag or an annotated tag)");
final String tagRef = Constants.R_TAGS+tagName;
return doRetrieve(new Retriever<SCMRevision>() {
@Override
public SCMRevision run(GitClient client, String remoteName) throws IOException,
InterruptedException {
try (final Repository repository = client.getRepository();
RevWalk walk = new RevWalk(repository)) {
ObjectId ref = client.revParse(tagRef);
RevCommit commit = walk.parseCommit(ref);
long lastModified = TimeUnit.SECONDS.toMillis(commit.getCommitTime());
listener.getLogger().printf("Resolved tag %s revision %s%n", revision,
ref.getName());
return new GitTagSCMRevision(new GitTagSCMHead(revision, lastModified),
ref.name());
}
}
},
context,
listener, pruneRefs);
}
// Pokémon!... Got to catch them all
listener.getLogger().printf("Could not find %s in remote references. "
+ "Pulling heads to local for deep search...%n", revision);
context.wantTags(true);
context.wantBranches(true);
return doRetrieve(new Retriever<SCMRevision>() {
@Override
public SCMRevision run(GitClient client, String remoteName) throws IOException, InterruptedException {
ObjectId objectId;
String hash;
try {
objectId = client.revParse(revision);
if (objectId == null) {
//just to be safe
listener.error("Could not resolve %s", revision);
return null;
}
hash = objectId.name();
String candidatePrefix = Constants.R_REMOTES.substring(Constants.R_REFS.length())
+ context.remoteName() + "/";
String name = null;
for (Branch b: client.getBranchesContaining(hash, true)) {
if (b.getName().startsWith(candidatePrefix)) {
name = b.getName().substring(candidatePrefix.length());
break;
}
}
if (name == null) {
listener.getLogger().printf("Could not find a branch containing commit %s%n",
hash);