@Override
public void actionPerformed(final AnActionEvent event) {
final Project project = event.getProject();
assert project != null;
final VirtualFile file = getAffectedFile(event);
GitRepositoryManager manager = GitUtil.getRepositoryManager(project);
GitRepository repository = manager.getRepositoryForFile(file);
assert repository != null;
GitBranch currentBranch = repository.getCurrentBranch();
final String head;
if (currentBranch == null) {
String currentRevision = repository.getCurrentRevision();
LOG.assertTrue(
currentRevision != null,
"Current revision is null for "
+ repository
+ ". Compare with branch shouldn't be available for fresh repository");
head = DvcsUtil.getShortHash(currentRevision);
} else {
head = currentBranch.getName();
}
final List<String> branchNames = getBranchNamesExceptCurrent(repository);
// prepare and invoke popup
final JBList list = new JBList(branchNames);
JBPopupFactory.getInstance()
.createListPopupBuilder(list)
.setTitle("Select branch to compare")
.setItemChoosenCallback(new OnBranchChooseRunnable(project, file, head, list))
.setAutoselectOnMouseMove(true)
.createPopup()
.showInBestPositionFor(event.getDataContext());
}
/**
* @return the short revision number. The revision number likely unambiguously identify local
* revision, however in rare cases there could be conflicts.
*/
@NotNull
public String getShortRev() {
return DvcsUtil.getShortHash(myRevisionHash);
}