private Iterable<RevCommit> getCommitsFromTag(String treeName) {
try {
List<Ref> call = git.tagList().call();
Iterable<RevCommit> logs = null;
for (Ref ref : call) {
if (ref.getName().equals(treeName)) {
LogCommand log = git.log();
Ref peeledRef = repository.peel(ref);
if (peeledRef.getPeeledObjectId() != null) {
log.add(peeledRef.getPeeledObjectId());
} else {
log.add(ref.getObjectId());
}
logs = log.call();
return logs;
}
}
return null;
} catch (GitAPIException e) {
throw new VisMinerAPIException(e.getMessage(), e);
} catch (MissingObjectException e) {
throw new VisMinerAPIException(e.getMessage(), e);
} catch (IncorrectObjectTypeException e) {
throw new VisMinerAPIException(e.getMessage(), e);
}
}
private List<String> getTags() {
RevCommit commit = getCommit().getRevCommit();
Repository repository = getCommit().getRepository();
List<String> tags = new ArrayList<String>();
for (Ref tag : repository.getTags().values())
if (commit.equals(repository.peel(tag).getPeeledObjectId()))
tags.add(Repository.shortenRefName(tag.getName()));
Collections.sort(tags);
return tags;
}
public String getProjectVersion(File repoDir) throws IOException, GitAPIException {
Git git = Git.open(repoDir);
Repository repo = git.getRepository();
// Find base commit between current branch and "master":
String branch = repo.getBranch();
RevCommit base = CommitUtils.getBase(repo, "master", branch);
CommitCountFilter count = new CommitCountFilter();
CommitFinder finder = new CommitFinder(repo).setFilter(count);
finder.findBetween(branch, base);
long commitsSinceBase = count.getCount();
// Find tags in "master" before base commit:
RevWalk rw = new RevWalk(repo);
rw.markStart(base);
rw.setRetainBody(false);
Ref master = repo.getRef("master");
List<Ref> masterAsList = Arrays.asList(master);
List<Ref> tags = git.tagList().call();
Map<RevCommit, Ref> masterTags = new HashMap<RevCommit, Ref>();
for (Ref tag : tags) {
tag = repo.peel(tag);
ObjectId commitID = tag.getPeeledObjectId();
if (commitID == null) continue;
RevCommit commit = rw.parseCommit(commitID);
// Only remember tags reachable from "master":
if (!RevWalkUtils.findBranchesReachableFrom(commit, rw, masterAsList).isEmpty()) {
masterTags.put(commit, tag);
}
}
// Find the shortest distance in commits between base tag in "master":
long commitsBetweenBaseAndTag = Long.MAX_VALUE;
String tagName = "";
for (RevCommit tagCommit : masterTags.keySet()) {
count.reset();
finder.findBetween(base, tagCommit);
if (count.getCount() < commitsBetweenBaseAndTag) {
commitsBetweenBaseAndTag = count.getCount();
tagName = masterTags.get(tagCommit).getName();
}
}
if (commitsBetweenBaseAndTag == Long.MAX_VALUE) {
// If no tag, get total number of commits:
commitsBetweenBaseAndTag = repo.getRefDatabase().getRefs("").size();
}
long commitsSinceLastMasterTag = commitsSinceBase + commitsBetweenBaseAndTag;
// Construct version string:
String version = branch.equals("master") ? "" : (branch + "-");
if (tagName.startsWith("refs/tags/")) {
tagName = tagName.substring("refs/tags/".length());
}
// v1.1 -> 1.1
if (tagName.matches("v\\d+.*")) {
tagName = tagName.substring(1);
}
if (tagName.isEmpty()) {
version = "0";
}
version += tagName + ((!tagonly) ? "." + commitsSinceLastMasterTag : "");
return version;
}