private static String describeLabels(ChangeData cd, List<SubmitRecord.Label> labels)
throws OrmException {
List<String> labelResults = new ArrayList<>();
for (SubmitRecord.Label lbl : labels) {
switch (lbl.status) {
case OK:
case MAY:
break;
case REJECT:
labelResults.add("blocked by " + lbl.label);
break;
case NEED:
labelResults.add("needs " + lbl.label);
break;
case IMPOSSIBLE:
labelResults.add("needs " + lbl.label + " (check project access)");
break;
default:
throw new IllegalStateException(
String.format(
"Unsupported SubmitRecord.Label %s for %s in %s",
lbl, cd.change().currentPatchSetId(), cd.change().getProject()));
}
}
return Joiner.on("; ").join(labelResults);
}
private void checkSubmitRulesAndState(ChangeSet cs)
throws ResourceConflictException, OrmException {
StringBuilder msgbuf = new StringBuilder();
List<Change.Id> problemChanges = new ArrayList<>();
for (Change.Id id : cs.ids()) {
try {
ChangeData cd = changeDataFactory.create(db, id);
if (cd.change().getStatus() != Change.Status.NEW) {
throw new ResourceConflictException(
"Change " + cd.change().getChangeId() + " is in state " + cd.change().getStatus());
} else {
records.put(cd.change().getId(), checkSubmitRule(cd));
}
} catch (ResourceConflictException e) {
msgbuf.append(e.getMessage() + "\n");
problemChanges.add(id);
}
}
String reason = msgbuf.toString();
if (!reason.isEmpty()) {
throw new ResourceConflictException(
"The change could not be "
+ "submitted because it depends on change(s) "
+ problemChanges.toString()
+ ", which could not be submitted "
+ "because:\n"
+ reason);
}
}
private void abandonAllOpenChanges(Project.NameKey destProject) throws NoSuchChangeException {
try {
for (ChangeData cd : internalChangeQuery.byProjectOpen(destProject)) {
abandonOneChange(cd.change());
}
} catch (IOException | OrmException e) {
logWarn("Cannot abandon changes for deleted project ", e);
}
}
private void updateChangeStatus(OpenBranch ob, List<ChangeData> submitted, IdentifiedUser caller)
throws ResourceConflictException {
List<Change.Id> problemChanges = new ArrayList<>(submitted.size());
logDebug("Updating change status for {} changes", submitted.size());
for (ChangeData cd : submitted) {
Change.Id id = cd.getId();
try {
Change c = cd.change();
CodeReviewCommit commit = commits.get(id);
CommitMergeStatus s = commit != null ? commit.getStatusCode() : null;
logDebug("Status of change {} ({}) on {}: {}", id, commit.name(), c.getDest(), s);
checkState(s != null, "status not set for change %s; expected to previously fail fast", id);
setApproval(cd, caller);
ObjectId mergeResultRev =
ob.mergeTip != null ? ob.mergeTip.getMergeResults().get(commit) : null;
String txt = s.getMessage();
// The change notes must be forcefully reloaded so that the SUBMIT
// approval that we added earlier is visible
commit.notes().reload();
if (s == CommitMergeStatus.CLEAN_MERGE) {
setMerged(c, message(c, txt + getByAccountName(commit)), mergeResultRev);
} else if (s == CommitMergeStatus.CLEAN_REBASE || s == CommitMergeStatus.CLEAN_PICK) {
setMerged(
c,
message(c, txt + " as " + commit.name() + getByAccountName(commit)),
mergeResultRev);
} else if (s == CommitMergeStatus.ALREADY_MERGED) {
setMerged(c, null, mergeResultRev);
} else {
throw new IllegalStateException(
"unexpected status "
+ s
+ " for change "
+ c.getId()
+ "; expected to previously fail fast");
}
} catch (OrmException | IOException err) {
logWarn("Error updating change status for " + id, err);
problemChanges.add(id);
}
}
if (problemChanges.isEmpty()) {
return;
}
StringBuilder msg = new StringBuilder("Error updating status of change");
if (problemChanges.size() == 1) {
msg.append(' ').append(problemChanges.iterator().next());
} else {
msg.append('s').append(Joiner.on(", ").join(problemChanges));
}
throw new ResourceConflictException(msg.toString());
}
private void checkSubmitRulesAndState(ChangeSet cs) {
for (ChangeData cd : cs.changes()) {
try {
if (cd.change().getStatus() != Change.Status.NEW) {
problems.put(
cd.getId(),
"Change " + cd.getId() + " is " + cd.change().getStatus().toString().toLowerCase());
} else {
checkSubmitRule(cd);
}
} catch (ResourceConflictException e) {
problems.put(cd.getId(), e.getMessage());
} catch (OrmException e) {
String msg = "Error checking submit rules for change";
log.warn(msg + " " + cd.getId(), e);
problems.put(cd.getId(), msg);
}
}
}
private MergeTip preMerge(
SubmitStrategy strategy, List<ChangeData> submitted, CodeReviewCommit branchTip)
throws IntegrationException, OrmException {
logDebug(
"Running submit strategy {} for {} commits {}",
strategy.getClass().getSimpleName(),
submitted.size(),
submitted);
List<CodeReviewCommit> toMerge = new ArrayList<>(submitted.size());
for (ChangeData cd : submitted) {
CodeReviewCommit commit = commits.get(cd.change().getId());
checkState(
commit != null, "commit for %s not found by validateChangeList", cd.change().getId());
toMerge.add(commit);
}
MergeTip mergeTip = strategy.run(branchTip, toMerge);
logDebug("Produced {} new commits", strategy.getNewCommits().size());
commits.putAll(strategy.getNewCommits());
return mergeTip;
}
public static void checkSubmitRule(ChangeData cd) throws ResourceConflictException, OrmException {
PatchSet patchSet = cd.currentPatchSet();
if (patchSet == null) {
throw new ResourceConflictException("missing current patch set for change " + cd.getId());
}
List<SubmitRecord> results = cd.getSubmitRecords();
if (results == null) {
results = new SubmitRuleEvaluator(cd).evaluate();
cd.setSubmitRecords(results);
}
if (findOkRecord(results).isPresent()) {
// Rules supplied a valid solution.
return;
} else if (results.isEmpty()) {
throw new IllegalStateException(
String.format(
"SubmitRuleEvaluator.evaluate for change %s " + "returned empty list for %s in %s",
cd.getId(), patchSet.getId(), cd.change().getProject().get()));
}
for (SubmitRecord record : results) {
switch (record.status) {
case CLOSED:
throw new ResourceConflictException("change is closed");
case RULE_ERROR:
throw new ResourceConflictException("submit rule error: " + record.errorMessage);
case NOT_READY:
throw new ResourceConflictException(describeLabels(cd, record.labels));
default:
throw new IllegalStateException(
String.format(
"Unsupported SubmitRecord %s for %s in %s",
record, patchSet.getId().getId(), cd.change().getProject().get()));
}
}
throw new IllegalStateException();
}
private void setApproval(ChangeData cd, IdentifiedUser user) throws OrmException, IOException {
Timestamp timestamp = TimeUtil.nowTs();
ChangeControl control = cd.changeControl();
PatchSet.Id psId = cd.currentPatchSet().getId();
PatchSet.Id psIdNewRev = commits.get(cd.change().getId()).change().currentPatchSetId();
logDebug("Add approval for " + cd + " from user " + user);
ChangeUpdate update = updateFactory.create(control, timestamp);
update.putReviewer(user.getAccountId(), REVIEWER);
List<SubmitRecord> record = records.get(cd.change().getId());
if (record != null) {
update.merge(record);
}
db.changes().beginTransaction(cd.change().getId());
try {
BatchMetaDataUpdate batch = approve(control, psId, user, update, timestamp);
batch.write(update, new CommitBuilder());
// If the submit strategy created a new revision (rebase, cherry-pick)
// approve that as well
if (!psIdNewRev.equals(psId)) {
update.setPatchSetId(psId);
update.commit();
// Create a new ChangeUpdate instance because we need to store meta data
// on another patch set (psIdNewRev).
update = updateFactory.create(control, timestamp);
batch = approve(control, psIdNewRev, user, update, timestamp);
// Write update commit after all normalized label commits.
batch.write(update, new CommitBuilder());
}
db.commit();
} finally {
db.rollback();
}
update.commit();
indexer.index(db, cd.change());
}
private Multimap<ObjectId, PatchSet.Id> getRevisions(OpenRepo or, Collection<ChangeData> cds)
throws IntegrationException {
try {
List<String> refNames = new ArrayList<>(cds.size());
for (ChangeData cd : cds) {
Change c = cd.change();
if (c != null) {
refNames.add(c.currentPatchSetId().toRefName());
}
}
Multimap<ObjectId, PatchSet.Id> revisions = HashMultimap.create(cds.size(), 1);
for (Map.Entry<String, Ref> e :
or.repo
.getRefDatabase()
.exactRef(refNames.toArray(new String[refNames.size()]))
.entrySet()) {
revisions.put(e.getValue().getObjectId(), PatchSet.Id.fromRef(e.getKey()));
}
return revisions;
} catch (IOException | OrmException e) {
throw new IntegrationException("Failed to validate changes", e);
}
}
private void updateChangeStatus(
List<ChangeData> submitted, Branch.NameKey destBranch, boolean dryRun, IdentifiedUser caller)
throws NoSuchChangeException, IntegrationException, ResourceConflictException, OrmException {
if (!dryRun) {
logDebug("Updating change status for {} changes", submitted.size());
} else {
logDebug("Checking change state for {} changes in a dry run", submitted.size());
}
MergeTip mergeTip = mergeTips.get(destBranch);
for (ChangeData cd : submitted) {
Change c = cd.change();
CodeReviewCommit commit = commits.get(c.getId());
CommitMergeStatus s = commit != null ? commit.getStatusCode() : null;
if (s == null) {
// Shouldn't ever happen, but leave the change alone. We'll pick
// it up on the next pass.
//
logDebug(
"Submitted change {} did not appear in set of new commits"
+ " produced by merge strategy",
c.getId());
continue;
}
if (!dryRun) {
try {
setApproval(cd, caller);
} catch (IOException e) {
throw new OrmException(e);
}
}
String txt = s.getMessage();
logDebug("Status of change {} ({}) on {}: {}", c.getId(), commit.name(), c.getDest(), s);
// If mergeTip is null merge failed and mergeResultRev will not be read.
ObjectId mergeResultRev = mergeTip != null ? mergeTip.getMergeResults().get(commit) : null;
// The change notes must be forcefully reloaded so that the SUBMIT
// approval that we added earlier is visible
commit.notes().reload();
try {
ChangeMessage msg;
switch (s) {
case CLEAN_MERGE:
if (!dryRun) {
setMerged(c, message(c, txt + getByAccountName(commit)), mergeResultRev);
}
break;
case CLEAN_REBASE:
case CLEAN_PICK:
if (!dryRun) {
setMerged(
c,
message(c, txt + " as " + commit.name() + getByAccountName(commit)),
mergeResultRev);
}
break;
case ALREADY_MERGED:
if (!dryRun) {
setMerged(c, null, mergeResultRev);
}
break;
case PATH_CONFLICT:
case REBASE_MERGE_CONFLICT:
case MANUAL_RECURSIVE_MERGE:
case CANNOT_CHERRY_PICK_ROOT:
case NOT_FAST_FORWARD:
case INVALID_PROJECT_CONFIGURATION:
case INVALID_PROJECT_CONFIGURATION_PLUGIN_VALUE_NOT_PERMITTED:
case INVALID_PROJECT_CONFIGURATION_PLUGIN_VALUE_NOT_EDITABLE:
case INVALID_PROJECT_CONFIGURATION_PARENT_PROJECT_NOT_FOUND:
case INVALID_PROJECT_CONFIGURATION_ROOT_PROJECT_CANNOT_HAVE_PARENT:
case SETTING_PARENT_PROJECT_ONLY_ALLOWED_BY_ADMIN:
setNew(commit.notes(), message(c, txt));
throw new ResourceConflictException(
"Cannot merge " + commit.name() + "\n" + s.getMessage());
case MISSING_DEPENDENCY:
logDebug("Change {} is missing dependency", c.getId());
throw new IntegrationException("Cannot merge " + commit.name() + "\n" + s.getMessage());
case REVISION_GONE:
logDebug("Commit not found for change {}", c.getId());
msg =
new ChangeMessage(
new ChangeMessage.Key(c.getId(), ChangeUtil.messageUUID(db)),
null,
TimeUtil.nowTs(),
c.currentPatchSetId());
msg.setMessage("Failed to read commit for this patch set");
setNew(commit.notes(), msg);
throw new IntegrationException(msg.getMessage());
default:
msg = message(c, "Unspecified merge failure: " + s.name());
setNew(commit.notes(), msg);
throw new IntegrationException(msg.getMessage());
}
} catch (OrmException | IOException err) {
logWarn("Error updating change status for " + c.getId(), err);
}
}
}
public static List<SubmitRecord> checkSubmitRule(ChangeData cd)
throws ResourceConflictException, OrmException {
PatchSet patchSet = cd.currentPatchSet();
if (patchSet == null) {
throw new ResourceConflictException("missing current patch set for change " + cd.getId());
}
List<SubmitRecord> results = new SubmitRuleEvaluator(cd).setPatchSet(patchSet).evaluate();
Optional<SubmitRecord> ok = findOkRecord(results);
if (ok.isPresent()) {
// Rules supplied a valid solution.
return ImmutableList.of(ok.get());
} else if (results.isEmpty()) {
throw new IllegalStateException(
String.format(
"SubmitRuleEvaluator.evaluate for change %s " + "returned empty list for %s in %s",
cd.getId(), patchSet.getId(), cd.change().getProject().get()));
}
for (SubmitRecord record : results) {
switch (record.status) {
case CLOSED:
throw new ResourceConflictException(String.format("change %s is closed", cd.getId()));
case RULE_ERROR:
throw new ResourceConflictException(
String.format("rule error for change %s: %s", cd.getId(), record.errorMessage));
case NOT_READY:
StringBuilder msg = new StringBuilder();
msg.append(cd.getId() + ":");
for (SubmitRecord.Label lbl : record.labels) {
switch (lbl.status) {
case OK:
case MAY:
continue;
case REJECT:
msg.append(" blocked by ").append(lbl.label);
msg.append(";");
continue;
case NEED:
msg.append(" needs ").append(lbl.label);
msg.append(";");
continue;
case IMPOSSIBLE:
msg.append(" needs ").append(lbl.label).append(" (check project access)");
msg.append(";");
continue;
default:
throw new IllegalStateException(
String.format(
"Unsupported SubmitRecord.Label %s for %s in %s in %s",
lbl.toString(),
patchSet.getId(),
cd.getId(),
cd.change().getProject().get()));
}
}
throw new ResourceConflictException(msg.toString());
default:
throw new IllegalStateException(
String.format(
"Unsupported SubmitRecord %s for %s in %s",
record, patchSet.getId().getId(), cd.change().getProject().get()));
}
}
throw new IllegalStateException();
}
private Set<Change.Id> parseChangeId(String idstr) throws UnloggedFailure, OrmException {
Set<Change.Id> matched = new HashSet<>(4);
boolean isCommit = idstr.matches("^([0-9a-fA-F]{4," + RevId.LEN + "})$");
// By newer style changeKey?
//
boolean changeKeyParses = idstr.matches("^I[0-9a-f]*$");
if (changeKeyParses) {
for (ChangeData cd : queryProvider.get().byKeyPrefix(idstr)) {
matchChange(matched, cd.change());
}
}
// By commit?
//
if (isCommit) {
RevId id = new RevId(idstr);
ResultSet<PatchSet> patches;
if (id.isComplete()) {
patches = db.patchSets().byRevision(id);
} else {
patches = db.patchSets().byRevisionRange(id, id.max());
}
for (PatchSet ps : patches) {
matchChange(matched, ps.getId().getParentKey());
}
}
// By older style changeId?
//
boolean changeIdParses = false;
if (idstr.matches("^[1-9][0-9]*$")) {
Change.Id id;
try {
id = Change.Id.parse(idstr);
changeIdParses = true;
} catch (IllegalArgumentException e) {
id = null;
changeIdParses = false;
}
if (changeIdParses) {
matchChange(matched, id);
}
}
if (!changeKeyParses && !isCommit && !changeIdParses) {
throw error("\"" + idstr + "\" is not a valid change");
}
switch (matched.size()) {
case 0:
throw error("\"" + idstr + "\" no such change");
case 1:
return matched;
default:
throw error("\"" + idstr + "\" matches multiple changes");
}
}
private BranchBatch validateChangeList(OpenRepo or, Collection<ChangeData> submitted)
throws IntegrationException {
logDebug("Validating {} changes", submitted.size());
List<ChangeData> toSubmit = new ArrayList<>(submitted.size());
Multimap<ObjectId, PatchSet.Id> revisions = getRevisions(or, submitted);
SubmitType submitType = null;
ChangeData choseSubmitTypeFrom = null;
for (ChangeData cd : submitted) {
Change.Id changeId = cd.getId();
ChangeControl ctl;
Change chg;
try {
ctl = cd.changeControl();
chg = cd.change();
} catch (OrmException e) {
logProblem(changeId, e);
continue;
}
if (chg.currentPatchSetId() == null) {
String msg = "Missing current patch set on change";
logError(msg + " " + changeId);
problems.put(changeId, msg);
continue;
}
PatchSet ps;
Branch.NameKey destBranch = chg.getDest();
try {
ps = cd.currentPatchSet();
} catch (OrmException e) {
logProblem(changeId, e);
continue;
}
if (ps == null || ps.getRevision() == null || ps.getRevision().get() == null) {
logProblem(changeId, "Missing patch set or revision on change");
continue;
}
String idstr = ps.getRevision().get();
ObjectId id;
try {
id = ObjectId.fromString(idstr);
} catch (IllegalArgumentException e) {
logProblem(changeId, e);
continue;
}
if (!revisions.containsEntry(id, ps.getId())) {
// TODO this is actually an error, the branch is gone but we
// want to merge the issue. We can't safely do that if the
// tip is not reachable.
//
logProblem(
changeId,
"Revision "
+ idstr
+ " of patch set "
+ ps.getPatchSetId()
+ " does not match "
+ ps.getId().toRefName()
+ " for change");
continue;
}
CodeReviewCommit commit;
try {
commit = or.rw.parseCommit(id);
} catch (IOException e) {
logProblem(changeId, e);
continue;
}
// TODO(dborowitz): Consider putting ChangeData in CodeReviewCommit.
commit.setControl(ctl);
commit.setPatchsetId(ps.getId());
commits.put(changeId, commit);
MergeValidators mergeValidators = mergeValidatorsFactory.create();
try {
mergeValidators.validatePreMerge(or.repo, commit, or.project, destBranch, ps.getId());
} catch (MergeValidationException mve) {
problems.put(changeId, mve.getMessage());
continue;
}
SubmitType st = getSubmitType(cd);
if (st == null) {
logProblem(changeId, "No submit type for change");
continue;
}
if (submitType == null) {
submitType = st;
choseSubmitTypeFrom = cd;
} else if (st != submitType) {
problems.put(
changeId,
String.format(
"Change has submit type %s, but previously chose submit type %s "
+ "from change %s in the same batch",
st, submitType, choseSubmitTypeFrom.getId()));
continue;
}
commit.add(or.canMergeFlag);
toSubmit.add(cd);
}
logDebug("Submitting on this run: {}", toSubmit);
return new AutoValue_MergeOp_BranchBatch(submitType, toSubmit);
}