private OpenRepo openRepo(Project.NameKey project) throws NoSuchProjectException, IOException {
OpenRepo repo = openRepos.get(project);
if (repo == null) {
ProjectState projectState = projectCache.get(project);
if (projectState == null) {
throw new NoSuchProjectException(project);
}
try {
repo = new OpenRepo(repoManager.openRepository(project), projectState);
} catch (RepositoryNotFoundException e) {
throw new NoSuchProjectException(project);
}
openRepos.put(project, repo);
}
return repo;
}
private void openRepository(Project.NameKey name)
throws IntegrationException, NoSuchProjectException {
try {
repo = repoManager.openRepository(name);
} catch (RepositoryNotFoundException notFound) {
throw new NoSuchProjectException(name, notFound);
} catch (IOException err) {
String m = "Error opening repository \"" + name.get() + '"';
throw new IntegrationException(m, err);
}
rw = CodeReviewCommit.newRevWalk(repo);
rw.sort(RevSort.TOPO);
rw.sort(RevSort.COMMIT_TIME_DESC, true);
rw.setRetainBody(false);
canMergeFlag = rw.newFlag("CAN_MERGE");
inserter = repo.newObjectInserter();
}
/**
* Update the submodules in one branch of one repository.
*
* @param subscriber the branch of the repository which should be changed.
* @param updates submodule updates which should be updated to.
* @throws SubmoduleException
*/
private void updateGitlinks(
ReviewDb db, Branch.NameKey subscriber, Collection<SubmoduleSubscription> updates)
throws SubmoduleException {
PersonIdent author = null;
Repository pdb = null;
RevWalk recRw = null;
StringBuilder msgbuf = new StringBuilder("Updated git submodules\n\n");
try {
boolean sameAuthorForAll = true;
pdb = repoManager.openRepository(subscriber.getParentKey());
if (pdb.getRef(subscriber.get()) == null) {
throw new SubmoduleException(
"The branch was probably deleted from the subscriber repository");
}
DirCache dc = readTree(pdb, pdb.getRef(subscriber.get()));
DirCacheEditor ed = dc.editor();
for (SubmoduleSubscription s : updates) {
try (Repository subrepo = repoManager.openRepository(s.getSubmodule().getParentKey());
RevWalk rw = CodeReviewCommit.newRevWalk(subrepo)) {
Ref ref = subrepo.getRefDatabase().exactRef(s.getSubmodule().get());
if (ref == null) {
ed.add(new DeletePath(s.getPath()));
continue;
}
final ObjectId updateTo = ref.getObjectId();
RevCommit newCommit = rw.parseCommit(updateTo);
if (author == null) {
author = newCommit.getAuthorIdent();
} else if (!author.equals(newCommit.getAuthorIdent())) {
sameAuthorForAll = false;
}
DirCacheEntry dce = dc.getEntry(s.getPath());
ObjectId oldId = null;
if (dce != null) {
if (!dce.getFileMode().equals(FileMode.GITLINK)) {
log.error(
"Requested to update gitlink "
+ s.getPath()
+ " in "
+ s.getSubmodule().getParentKey().get()
+ " but entry "
+ "doesn't have gitlink file mode.");
continue;
}
oldId = dce.getObjectId();
} else {
// This submodule did not exist before. We do not want to add
// the full submodule history to the commit message, so omit it.
oldId = updateTo;
}
ed.add(
new PathEdit(s.getPath()) {
@Override
public void apply(DirCacheEntry ent) {
ent.setFileMode(FileMode.GITLINK);
ent.setObjectId(updateTo);
}
});
if (verboseSuperProject) {
msgbuf.append("Project: " + s.getSubmodule().getParentKey().get());
msgbuf.append(" " + s.getSubmodule().getShortName());
msgbuf.append(" " + updateTo.getName());
msgbuf.append("\n\n");
try {
rw.markStart(newCommit);
if (oldId != null) {
rw.markUninteresting(rw.parseCommit(oldId));
}
for (RevCommit c : rw) {
msgbuf.append(c.getFullMessage() + "\n\n");
}
} catch (IOException e) {
logAndThrowSubmoduleException(
"Could not perform a revwalk to " + "create superproject commit message", e);
}
}
}
}
ed.finish();
if (!sameAuthorForAll || author == null) {
author = myIdent;
}
ObjectInserter oi = pdb.newObjectInserter();
ObjectId tree = dc.writeTree(oi);
ObjectId currentCommitId = pdb.getRef(subscriber.get()).getObjectId();
CommitBuilder commit = new CommitBuilder();
commit.setTreeId(tree);
commit.setParentIds(new ObjectId[] {currentCommitId});
commit.setAuthor(author);
commit.setCommitter(myIdent);
commit.setMessage(msgbuf.toString());
oi.insert(commit);
oi.flush();
ObjectId commitId = oi.idFor(Constants.OBJ_COMMIT, commit.build());
final RefUpdate rfu = pdb.updateRef(subscriber.get());
rfu.setForceUpdate(false);
rfu.setNewObjectId(commitId);
rfu.setExpectedOldObjectId(currentCommitId);
rfu.setRefLogMessage("Submit to " + subscriber.getParentKey().get(), true);
switch (rfu.update()) {
case NEW:
case FAST_FORWARD:
gitRefUpdated.fire(subscriber.getParentKey(), rfu);
changeHooks.doRefUpdatedHook(subscriber, rfu, account);
// TODO since this is performed "in the background" no mail will be
// sent to inform users about the updated branch
break;
default:
throw new IOException(rfu.getResult().name());
}
recRw = new RevWalk(pdb);
// Recursive call: update subscribers of the subscriber
updateSuperProjects(db, Sets.newHashSet(subscriber));
} catch (IOException e) {
throw new SubmoduleException("Cannot update gitlinks for " + subscriber.get(), e);
} finally {
if (recRw != null) {
recRw.close();
}
if (pdb != null) {
pdb.close();
}
}
}
void updateSubmoduleSubscriptions(ReviewDb db, Branch.NameKey destBranch)
throws SubmoduleException {
if (urlProvider.get() == null) {
logAndThrowSubmoduleException(
"Cannot establish canonical web url used "
+ "to access gerrit. It should be provided in gerrit.config file.");
}
try (Repository repo = repoManager.openRepository(destBranch.getParentKey());
RevWalk rw = new RevWalk(repo)) {
ObjectId id = repo.resolve(destBranch.get());
RevCommit commit = rw.parseCommit(id);
Set<SubmoduleSubscription> oldSubscriptions =
Sets.newHashSet(db.submoduleSubscriptions().bySuperProject(destBranch));
Set<SubmoduleSubscription> newSubscriptions;
TreeWalk tw = TreeWalk.forPath(repo, GIT_MODULES, commit.getTree());
if (tw != null
&& (FileMode.REGULAR_FILE.equals(tw.getRawMode(0))
|| FileMode.EXECUTABLE_FILE.equals(tw.getRawMode(0)))) {
BlobBasedConfig bbc = new BlobBasedConfig(null, repo, commit, GIT_MODULES);
String thisServer = new URI(urlProvider.get()).getHost();
newSubscriptions =
subSecParserFactory.create(bbc, thisServer, destBranch).parseAllSections();
} else {
newSubscriptions = Collections.emptySet();
}
Set<SubmoduleSubscription> alreadySubscribeds = new HashSet<>();
for (SubmoduleSubscription s : newSubscriptions) {
if (oldSubscriptions.contains(s)) {
alreadySubscribeds.add(s);
}
}
oldSubscriptions.removeAll(newSubscriptions);
newSubscriptions.removeAll(alreadySubscribeds);
if (!oldSubscriptions.isEmpty()) {
db.submoduleSubscriptions().delete(oldSubscriptions);
}
if (!newSubscriptions.isEmpty()) {
db.submoduleSubscriptions().insert(newSubscriptions);
}
} catch (OrmException e) {
logAndThrowSubmoduleException(
"Database problem at update of subscriptions table from " + GIT_MODULES + " file.", e);
} catch (ConfigInvalidException e) {
logAndThrowSubmoduleException(
"Problem at update of subscriptions table: " + GIT_MODULES + " config file is invalid.",
e);
} catch (IOException e) {
logAndThrowSubmoduleException(
"Problem at update of subscriptions table from " + GIT_MODULES + ".", e);
} catch (URISyntaxException e) {
logAndThrowSubmoduleException(
"Incorrect gerrit canonical web url provided in gerrit.config file.", e);
}
}
private RefUpdate updateBranch(Branch.NameKey destBranch, IdentifiedUser caller)
throws IntegrationException {
RefUpdate branchUpdate = getPendingRefUpdate(destBranch);
CodeReviewCommit branchTip = getBranchTip(destBranch);
MergeTip mergeTip = mergeTips.get(destBranch);
CodeReviewCommit currentTip = mergeTip != null ? mergeTip.getCurrentTip() : null;
if (Objects.equals(branchTip, currentTip)) {
if (currentTip != null) {
logDebug("Branch already at merge tip {}, no update to perform", currentTip.name());
} else {
logDebug("Both branch and merge tip are nonexistent, no update");
}
return null;
} else if (currentTip == null) {
logDebug("No merge tip, no update to perform");
return null;
}
if (RefNames.REFS_CONFIG.equals(branchUpdate.getName())) {
logDebug("Loading new configuration from {}", RefNames.REFS_CONFIG);
try {
ProjectConfig cfg = new ProjectConfig(destProject.getProject().getNameKey());
cfg.load(repo, currentTip);
} catch (Exception e) {
throw new IntegrationException(
"Submit would store invalid"
+ " project configuration "
+ currentTip.name()
+ " for "
+ destProject.getProject().getName(),
e);
}
}
branchUpdate.setRefLogIdent(
identifiedUserFactory.create(caller.getAccountId()).newRefLogIdent());
branchUpdate.setForceUpdate(false);
branchUpdate.setNewObjectId(currentTip);
branchUpdate.setRefLogMessage("merged", true);
try {
RefUpdate.Result result = branchUpdate.update(rw);
logDebug(
"Update of {}: {}..{} returned status {}",
branchUpdate.getName(),
branchUpdate.getOldObjectId(),
branchUpdate.getNewObjectId(),
result);
switch (result) {
case NEW:
case FAST_FORWARD:
if (branchUpdate.getResult() == RefUpdate.Result.FAST_FORWARD) {
tagCache.updateFastForward(
destBranch.getParentKey(),
branchUpdate.getName(),
branchUpdate.getOldObjectId(),
currentTip);
}
if (RefNames.REFS_CONFIG.equals(branchUpdate.getName())) {
Project p = destProject.getProject();
projectCache.evict(p);
destProject = projectCache.get(p.getNameKey());
repoManager.setProjectDescription(p.getNameKey(), p.getDescription());
}
return branchUpdate;
case LOCK_FAILURE:
throw new IntegrationException("Failed to lock " + branchUpdate.getName());
default:
throw new IOException(branchUpdate.getResult().name() + '\n' + branchUpdate);
}
} catch (IOException e) {
throw new IntegrationException("Cannot update " + branchUpdate.getName(), e);
}
}
