private String summarize(RevWalk rw, List<CodeReviewCommit> merged) throws IOException {
if (merged.size() == 1) {
CodeReviewCommit c = merged.get(0);
rw.parseBody(c);
return String.format("Merge \"%s\"", c.getShortMessage());
}
LinkedHashSet<String> topics = new LinkedHashSet<>(4);
for (CodeReviewCommit c : merged) {
if (!Strings.isNullOrEmpty(c.change().getTopic())) {
topics.add(c.change().getTopic());
}
}
if (topics.size() == 1) {
return String.format("Merge changes from topic '%s'", Iterables.getFirst(topics, null));
} else if (topics.size() > 1) {
return String.format("Merge changes from topics '%s'", Joiner.on("', '").join(topics));
} else {
return String.format(
"Merge changes %s%s",
Joiner.on(',')
.join(
Iterables.transform(
Iterables.limit(merged, 5),
new Function<CodeReviewCommit, String>() {
@Override
public String apply(CodeReviewCommit in) {
return in.change().getKey().abbreviate();
}
})),
merged.size() > 5 ? ", ..." : "");
}
}
private void setMerged(Change c, ChangeMessage msg, ObjectId mergeResultRev)
throws OrmException, IOException {
logDebug("Setting change {} merged", c.getId());
ChangeUpdate update = null;
final PatchSetApproval submitter;
PatchSet merged;
try {
db.changes().beginTransaction(c.getId());
// We must pull the patchset out of commits, because the patchset ID is
// modified when using the cherry-pick merge strategy.
CodeReviewCommit commit = commits.get(c.getId());
PatchSet.Id mergedId = commit.change().currentPatchSetId();
merged = db.patchSets().get(mergedId);
c = setMergedPatchSet(c.getId(), mergedId);
submitter = approvalsUtil.getSubmitter(db, commit.notes(), mergedId);
ChangeControl control = commit.getControl();
update = updateFactory.create(control, c.getLastUpdatedOn());
// TODO(yyonas): we need to be able to change the author of the message
// is not the person for whom the change was made. addMergedMessage
// did this in the past.
if (msg != null) {
cmUtil.addChangeMessage(db, update, msg);
}
db.commit();
} finally {
db.rollback();
}
update.commit();
indexer.index(db, c);
try {
mergedSenderFactory
.create(c.getId(), submitter != null ? submitter.getAccountId() : null)
.sendAsync();
} catch (Exception e) {
log.error("Cannot email merged notification for " + c.getId(), e);
}
if (submitter != null && mergeResultRev != null) {
try {
hooks.doChangeMergedHook(
c,
accountCache.get(submitter.getAccountId()).getAccount(),
merged,
db,
mergeResultRev.name());
} catch (OrmException ex) {
logError("Cannot run hook for submitted patch set " + c.getId(), ex);
}
}
}
