/**
* find out which branch that specified commit come from.
*
* @param commit
* @return branch name.
* @throws GitException
*/
public String getBranchName(RevCommit commit) throws GitException {
Set<Entry<String, Ref>> refs = repository.getAllRefs().entrySet();
if (this.masterRef == null) {
this.masterRef = this.findMasterRef();
}
boolean commitBelongsToBranch;
boolean commitBelongsToMaster;
List<String> foundInBranches = new ArrayList<String>();
try {
RevWalk walker = new RevWalk(this.repository);
RevCommit targetCommit = walker.parseCommit(this.repository.resolve(commit.getName()));
for (Entry<String, Ref> ref : refs) {
if (ref.getKey().startsWith(Constants.R_HEADS) && !ref.getKey().equals(this.masterRef)) {
commitBelongsToBranch =
walker.isMergedInto(targetCommit, walker.parseCommit(ref.getValue().getObjectId()));
commitBelongsToMaster = false;
if (this.masterRef != null) {
commitBelongsToMaster =
walker.isMergedInto(targetCommit, walker.parseCommit(this.masterRef.getObjectId()));
}
if (commitBelongsToBranch && !commitBelongsToMaster) {
foundInBranches.add(ref.getValue().getName());
}
}
}
} catch (GitException | MissingObjectException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IncorrectObjectTypeException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (foundInBranches.size() == 0) {
return "master";
}
return StringUtils.join(foundInBranches, ", ");
}
/**
* Join a collection of Strings together using the specified separator.
*
* @param parts Strings to join
* @param separator used to join
* @return a String with all the joined parts
*/
public static String join(Collection<String> parts, String separator) {
return StringUtils.join(parts, separator, separator);
}