List of usage examples for org.eclipse.jgit.lib CommitBuilder build
public byte[] build() throws UnsupportedEncodingException
From source file:com.google.gerrit.server.git.SubmoduleOp.java
License:Apache License
/** * Update the submodules in one branch of one repository. * * @param subscriber the branch of the repository which should be changed. * @param updates submodule updates which should be updated to. * @throws SubmoduleException/* w ww.j a va 2 s . c o m*/ */ private void updateGitlinks(ReviewDb db, Branch.NameKey subscriber, Collection<SubmoduleSubscription> updates) throws SubmoduleException { PersonIdent author = null; StringBuilder msgbuf = new StringBuilder("Updated git submodules\n\n"); boolean sameAuthorForAll = true; try (Repository pdb = repoManager.openRepository(subscriber.getParentKey())) { if (pdb.getRef(subscriber.get()) == null) { throw new SubmoduleException("The branch was probably deleted from the subscriber repository"); } DirCache dc = readTree(pdb, pdb.getRef(subscriber.get())); DirCacheEditor ed = dc.editor(); for (SubmoduleSubscription s : updates) { try (Repository subrepo = repoManager.openRepository(s.getSubmodule().getParentKey()); RevWalk rw = CodeReviewCommit.newRevWalk(subrepo)) { Ref ref = subrepo.getRefDatabase().exactRef(s.getSubmodule().get()); if (ref == null) { ed.add(new DeletePath(s.getPath())); continue; } final ObjectId updateTo = ref.getObjectId(); RevCommit newCommit = rw.parseCommit(updateTo); if (author == null) { author = newCommit.getAuthorIdent(); } else if (!author.equals(newCommit.getAuthorIdent())) { sameAuthorForAll = false; } DirCacheEntry dce = dc.getEntry(s.getPath()); ObjectId oldId; if (dce != null) { if (!dce.getFileMode().equals(FileMode.GITLINK)) { log.error("Requested to update gitlink " + s.getPath() + " in " + s.getSubmodule().getParentKey().get() + " but entry " + "doesn't have gitlink file mode."); continue; } oldId = dce.getObjectId(); } else { // This submodule did not exist before. We do not want to add // the full submodule history to the commit message, so omit it. oldId = updateTo; } ed.add(new PathEdit(s.getPath()) { @Override public void apply(DirCacheEntry ent) { ent.setFileMode(FileMode.GITLINK); ent.setObjectId(updateTo); } }); if (verboseSuperProject) { msgbuf.append("Project: " + s.getSubmodule().getParentKey().get()); msgbuf.append(" " + s.getSubmodule().getShortName()); msgbuf.append(" " + updateTo.getName()); msgbuf.append("\n\n"); try { rw.markStart(newCommit); rw.markUninteresting(rw.parseCommit(oldId)); for (RevCommit c : rw) { msgbuf.append(c.getFullMessage() + "\n\n"); } } catch (IOException e) { logAndThrowSubmoduleException( "Could not perform a revwalk to " + "create superproject commit message", e); } } } } ed.finish(); if (!sameAuthorForAll || author == null) { author = myIdent; } ObjectInserter oi = pdb.newObjectInserter(); ObjectId tree = dc.writeTree(oi); ObjectId currentCommitId = pdb.getRef(subscriber.get()).getObjectId(); CommitBuilder commit = new CommitBuilder(); commit.setTreeId(tree); commit.setParentIds(new ObjectId[] { currentCommitId }); commit.setAuthor(author); commit.setCommitter(myIdent); commit.setMessage(msgbuf.toString()); oi.insert(commit); oi.flush(); ObjectId commitId = oi.idFor(Constants.OBJ_COMMIT, commit.build()); final RefUpdate rfu = pdb.updateRef(subscriber.get()); rfu.setForceUpdate(false); rfu.setNewObjectId(commitId); rfu.setExpectedOldObjectId(currentCommitId); rfu.setRefLogMessage("Submit to " + subscriber.getParentKey().get(), true); switch (rfu.update()) { case NEW: case FAST_FORWARD: gitRefUpdated.fire(subscriber.getParentKey(), rfu); changeHooks.doRefUpdatedHook(subscriber, rfu, account); // TODO since this is performed "in the background" no mail will be // sent to inform users about the updated branch break; default: throw new IOException(rfu.getResult().name()); } // Recursive call: update subscribers of the subscriber updateSuperProjects(db, Sets.newHashSet(subscriber)); } catch (IOException e) { throw new SubmoduleException("Cannot update gitlinks for " + subscriber.get(), e); } }