@NotNull
private Set<VcsRef> readBranches(@NotNull GitRepository repository) {
StopWatch sw = StopWatch.start("readBranches in " + repository.getRoot().getName());
VirtualFile root = repository.getRoot();
repository.update();
Collection<GitLocalBranch> localBranches = repository.getBranches().getLocalBranches();
Collection<GitRemoteBranch> remoteBranches = repository.getBranches().getRemoteBranches();
Set<VcsRef> refs = new THashSet<VcsRef>(localBranches.size() + remoteBranches.size());
for (GitLocalBranch localBranch : localBranches) {
refs.add(
myVcsObjectsFactory.createRef(
localBranch.getHash(), localBranch.getName(), GitRefManager.LOCAL_BRANCH, root));
}
for (GitRemoteBranch remoteBranch : remoteBranches) {
refs.add(
myVcsObjectsFactory.createRef(
remoteBranch.getHash(),
remoteBranch.getNameForLocalOperations(),
GitRefManager.REMOTE_BRANCH,
root));
}
String currentRevision = repository.getCurrentRevision();
if (currentRevision != null) { // null => fresh repository
refs.add(
myVcsObjectsFactory.createRef(
HashImpl.build(currentRevision), "HEAD", GitRefManager.HEAD, root));
}
sw.report();
return refs;
}
@NotNull
private Set<String> readCurrentTagNames(@NotNull VirtualFile root) throws VcsException {
StopWatch sw = StopWatch.start("reading tags in " + root.getName());
Set<String> tags = newHashSet();
GitTag.listAsStrings(myProject, root, tags, null);
sw.report();
return tags;
}
@NotNull
private DetailedLogData loadSomeCommitsOnTaggedBranches(
@NotNull VirtualFile root, int commitCount, @NotNull Collection<String> unmatchedTags)
throws VcsException {
StopWatch sw = StopWatch.start("loading commits on tagged branch in " + root.getName());
List<String> params = new ArrayList<String>();
params.add("--max-count=" + commitCount);
params.addAll(unmatchedTags);
sw.report();
return GitHistoryUtils.loadMetadata(myProject, root, true, ArrayUtil.toStringArray(params));
}
private static void validateDataAndReportError(
@NotNull final VirtualFile root,
@NotNull final Set<VcsRef> allRefs,
@NotNull final List<VcsCommitMetadata> sortedCommits,
@NotNull final DetailedLogData firstBlockSyncData,
@NotNull final Set<VcsRef> manuallyReadBranches,
@Nullable final Set<String> currentTagNames,
@Nullable final DetailedLogData commitsFromTags) {
StopWatch sw = StopWatch.start("validating data in " + root.getName());
final Set<Hash> refs =
ContainerUtil.map2Set(
allRefs,
new Function<VcsRef, Hash>() {
@Override
public Hash fun(VcsRef ref) {
return ref.getCommitHash();
}
});
PermanentGraphImpl.newInstance(
sortedCommits,
new GraphColorManager<Hash>() {
@Override
public int getColorOfBranch(@NotNull Hash headCommit) {
return 0;
}
@Override
public int getColorOfFragment(@NotNull Hash headCommit, int magicIndex) {
return 0;
}
@Override
public int compareHeads(@NotNull Hash head1, @NotNull Hash head2) {
if (!refs.contains(head1) || !refs.contains(head2)) {
LOG.error(
"GitLogProvider returned inconsistent data",
new Attachment(
"error-details.txt",
printErrorDetails(
root,
allRefs,
sortedCommits,
firstBlockSyncData,
manuallyReadBranches,
currentTagNames,
commitsFromTags)));
}
return 0;
}
},
refs);
sw.report();
}
private void readCurrentUser() {
StopWatch sw = StopWatch.start("readCurrentUser");
for (Map.Entry<VirtualFile, VcsLogProvider> entry : myLogProviders.entrySet()) {
VirtualFile root = entry.getKey();
try {
VcsUser me = entry.getValue().getCurrentUser(root);
if (me != null) {
myCurrentUser.put(root, me);
} else {
LOG.info("Username not configured for root " + root);
}
} catch (VcsException e) {
LOG.warn("Couldn't read the username from root " + root, e);
}
}
sw.report();
}
@NotNull
@Override
public DetailedLogData readFirstBlock(
@NotNull VirtualFile root, @NotNull Requirements requirements) throws VcsException {
if (!isRepositoryReady(root)) {
return LogDataImpl.empty();
}
GitRepository repository =
ObjectUtils.assertNotNull(myRepositoryManager.getRepositoryForRoot(root));
// need to query more to sort them manually; this doesn't affect performance: it is equal for
// -1000 and -2000
int commitCount = requirements.getCommitCount() * 2;
String[] params =
new String[] {"HEAD", "--branches", "--remotes", "--max-count=" + commitCount};
// NB: not specifying --tags, because it introduces great slowdown if there are many tags,
// but makes sense only if there are heads without branch or HEAD labels (rare case). Such cases
// are partially handled below.
boolean refresh =
requirements instanceof VcsLogProviderRequirementsEx
&& ((VcsLogProviderRequirementsEx) requirements).isRefresh();
DetailedLogData data = GitHistoryUtils.loadMetadata(myProject, root, true, params);
Set<VcsRef> safeRefs = data.getRefs();
Set<VcsRef> allRefs = new OpenTHashSet<VcsRef>(safeRefs, DONT_CONSIDER_SHA);
Set<VcsRef> branches = readBranches(repository);
addNewElements(allRefs, branches);
Collection<VcsCommitMetadata> allDetails;
Set<String> currentTagNames = null;
DetailedLogData commitsFromTags = null;
if (!refresh) {
allDetails = data.getCommits();
} else {
// on refresh: get new tags, which point to commits not from the first block; then get
// history, walking down just from these tags
// on init: just ignore such tagged-only branches. The price for speed-up.
VcsLogProviderRequirementsEx rex = (VcsLogProviderRequirementsEx) requirements;
currentTagNames = readCurrentTagNames(root);
addOldStillExistingTags(allRefs, currentTagNames, rex.getPreviousRefs());
allDetails = newHashSet(data.getCommits());
Set<String> previousTags =
newHashSet(ContainerUtil.mapNotNull(rex.getPreviousRefs(), GET_TAG_NAME));
Set<String> safeTags = newHashSet(ContainerUtil.mapNotNull(safeRefs, GET_TAG_NAME));
Set<String> newUnmatchedTags = remove(currentTagNames, previousTags, safeTags);
if (!newUnmatchedTags.isEmpty()) {
commitsFromTags = loadSomeCommitsOnTaggedBranches(root, commitCount, newUnmatchedTags);
addNewElements(allDetails, commitsFromTags.getCommits());
addNewElements(allRefs, commitsFromTags.getRefs());
}
}
StopWatch sw = StopWatch.start("sorting commits in " + root.getName());
List<VcsCommitMetadata> sortedCommits = VcsLogSorter.sortByDateTopoOrder(allDetails);
sortedCommits =
sortedCommits.subList(0, Math.min(sortedCommits.size(), requirements.getCommitCount()));
sw.report();
if (LOG.isDebugEnabled()) {
validateDataAndReportError(
root, allRefs, sortedCommits, data, branches, currentTagNames, commitsFromTags);
}
return new LogDataImpl(allRefs, sortedCommits);
}