private void fireRefUpdated(Branch.NameKey destBranch, RefUpdate branchUpdate) {
logDebug("Firing ref updated hooks for {}", branchUpdate.getName());
gitRefUpdated.fire(destBranch.getParentKey(), branchUpdate);
hooks.doRefUpdatedHook(
destBranch, branchUpdate, getAccount(mergeTips.get(destBranch).getCurrentTip()));
}
/**
* 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();
}
}
}
private void fireRefUpdated(OpenBranch ob) {
logDebug("Firing ref updated hooks for {}", ob.name);
gitRefUpdated.fire(ob.name.getParentKey(), ob.update);
hooks.doRefUpdatedHook(ob.name, ob.update, getAccount(ob.mergeTip.getCurrentTip()));
}
