opendev/gerrit
Code Issues Proposed changes

Cache reused values in autoCloseChanges

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The tip commit and branch key are passed into the submodule update
helper. Hold them in varibles for reuse, to reduce redundant code.

It is not necessary to reset the RevWalk. The submodule updater is
only using the revision pool to parse commits. It doesn't perform a
traversal, so the reset is merely wasting CPU cycles here.

Change-Id: Id6545033291539b862291eb88d6e8e85a24cb34c
This commit is contained in:
Shawn Pearce
2014-10-15 17:51:12 -07:00
parent 511cb0d5c0
commit c2535f6aa8
1 changed files with 12 additions and 15 deletions
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27
gerrit-server/src/main/java/com/google/gerrit/server/git/ReceiveCommits.java
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@@ -2375,15 +2375,18 @@ public class ReceiveCommits {
private void autoCloseChanges(final ReceiveCommand cmd) throws NoSuchChangeException {
final RevWalk rw = rp.getRevWalk();
try {
RevCommit newTip = rw.parseCommit(cmd.getNewId());
Branch.NameKey branch =
new Branch.NameKey(project.getNameKey(), cmd.getRefName());
rw.reset();
rw.markStart(rw.parseCommit(cmd.getNewId()));
rw.markStart(newTip);
if (!ObjectId.zeroId().equals(cmd.getOldId())) {
rw.markUninteresting(rw.parseCommit(cmd.getOldId()));
}
final SetMultimap<ObjectId, Ref> byCommit = changeRefsById();
final Map<Change.Key, Change.Id> byKey = openChangesByKey(
new Branch.NameKey(project.getNameKey(), cmd.getRefName()));
final Map<Change.Key, Change.Id> byKey = openChangesByKey(branch);
final List<ReplaceRequest> toClose = new ArrayList<>();
for (RevCommit c; (c = rw.next()) != null;) {
rw.parseBody(c);
@@ -2421,18 +2424,12 @@ public class ReceiveCommits {
}
}
// It handles gitlinks if required.
rw.reset();
final RevCommit codeReviewCommit = rw.parseCommit(cmd.getNewId());
final SubmoduleOp subOp =
subOpFactory.create(
new Branch.NameKey(project.getNameKey(), cmd.getRefName()),
codeReviewCommit, rw, repo, project, new ArrayList<Change>(),
new HashMap<Change.Id, CodeReviewCommit>(),
currentUser.getAccount());
subOp.update();
// Update superproject gitlinks if required.
subOpFactory.create(
branch, newTip, rw, repo, project,
new ArrayList<Change>(),
new HashMap<Change.Id, CodeReviewCommit>(),
currentUser.getAccount()).update();
} catch (InsertException e) {
log.error("Can't insert patchset", e);
} catch (IOException e) {