/**
* This method calculates the commits and diff information against the tip of current branch and
* the common ancestor of source branch (current branch) and target branch (selected remote
* branch).
*
* <p>If there is no common parent (two branches are parallel), return an empty
* GitCommitCompareInfo
*
* <p>This is potentially an expensive calculation, probably should do it on a background thread.
* We will also attempt to cache the result
*
* <p>default access for testing so we bypass UI code, TODO: reevaluate the testing to properly
* shutoff the access level
*
* @return gitChangesContainer on what has changed on source branch
*/
GitChangesContainer getMyChangesCompareInfo() throws VcsException {
final GitBranch currBranch = this.getSourceBranch();
final GitRemoteBranch selectedRemoteBranch = this.getTargetBranch();
// if source branch or currentBranch isn't set, just return empty diff
if (selectedRemoteBranch == null || currBranch == null) {
return GitChangesContainer.createChangesContainer(
null,
null,
null,
null,
getDiffCompareInfoProvider().getEmptyDiff(this.gitRepository),
this.gitRepository);
}
final String remoteBranchHash = selectedRemoteBranch.getHash().asString();
final String currBranchHash = currBranch.getHash().asString();
try {
GitCommitCompareInfo changes =
this.diffCache.get(new Pair<String, String>(currBranchHash, remoteBranchHash));
return GitChangesContainer.createChangesContainer(
currBranch.getName(),
selectedRemoteBranch.getName(),
currBranchHash,
remoteBranchHash,
changes,
this.gitRepository);
} catch (ExecutionException e) {
throw new VcsException(e.getCause());
}
}
@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
@Override
public Collection<VcsRef> readAllRefs(@NotNull VirtualFile root) throws VcsException {
if (!isRepositoryReady(root)) {
return Collections.emptyList();
}
GitRepository repository = getRepository(root);
repository.update();
Collection<GitLocalBranch> localBranches = repository.getBranches().getLocalBranches();
Collection<GitRemoteBranch> remoteBranches = repository.getBranches().getRemoteBranches();
Collection<VcsRef> refs = new ArrayList<VcsRef>(localBranches.size() + remoteBranches.size());
for (GitLocalBranch localBranch : localBranches) {
refs.add(
myVcsObjectsFactory.createRef(
HashImpl.build(localBranch.getHash()),
localBranch.getName(),
GitRefManager.LOCAL_BRANCH,
root));
}
for (GitRemoteBranch remoteBranch : remoteBranches) {
refs.add(
myVcsObjectsFactory.createRef(
HashImpl.build(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));
}
refs.addAll(readTags(root));
return refs;
}