List of usage examples for org.eclipse.jgit.merge ResolveMerger setWorkingTreeIterator
public void setWorkingTreeIterator(WorkingTreeIterator workingTreeIterator)
From source file:org.eclipse.orion.server.git.jobs.StashApplyCommand.java
License:Eclipse Distribution License
/** * Apply the changes in a stashed commit to the working directory and index * * @return id of stashed commit that was applied TODO: Does anyone depend on this, or could we make it more like Merge/CherryPick/Revert? * @throws GitAPIException//w w w.ja va 2 s.c o m * @throws WrongRepositoryStateException * @throws NoHeadException * @throws StashApplyFailureException */ @Override public ObjectId call() throws GitAPIException, WrongRepositoryStateException, NoHeadException, StashApplyFailureException { checkCallable(); if (!ignoreRepositoryState && repo.getRepositoryState() != RepositoryState.SAFE) throw new WrongRepositoryStateException( MessageFormat.format(JGitText.get().stashApplyOnUnsafeRepository, repo.getRepositoryState())); ObjectReader reader = repo.newObjectReader(); try { RevWalk revWalk = new RevWalk(reader); ObjectId headCommit = repo.resolve(Constants.HEAD); if (headCommit == null) throw new NoHeadException(JGitText.get().stashApplyWithoutHead); final ObjectId stashId = getStashId(); RevCommit stashCommit = revWalk.parseCommit(stashId); if (stashCommit.getParentCount() < 2 || stashCommit.getParentCount() > 3) throw new JGitInternalException( MessageFormat.format(JGitText.get().stashCommitIncorrectNumberOfParents, stashId.name(), Integer.valueOf(stashCommit.getParentCount()))); ObjectId headTree = repo.resolve(Constants.HEAD + "^{tree}"); //$NON-NLS-1$ ObjectId stashIndexCommit = revWalk.parseCommit(stashCommit.getParent(1)); ObjectId stashHeadCommit = stashCommit.getParent(0); ObjectId untrackedCommit = null; if (applyUntracked && stashCommit.getParentCount() == 3) untrackedCommit = revWalk.parseCommit(stashCommit.getParent(2)); ResolveMerger merger = (ResolveMerger) strategy.newMerger(repo); merger.setCommitNames(new String[] { "stashed HEAD", "HEAD", "stash" }); merger.setBase(stashHeadCommit); merger.setWorkingTreeIterator(new FileTreeIterator(repo)); if (merger.merge(headCommit, stashCommit)) { DirCache dc = repo.lockDirCache(); DirCacheCheckout dco = new DirCacheCheckout(repo, headTree, dc, merger.getResultTreeId()); dco.setFailOnConflict(true); dco.checkout(); // Ignoring failed deletes.... if (applyIndex) { ResolveMerger ixMerger = (ResolveMerger) strategy.newMerger(repo, true); ixMerger.setCommitNames(new String[] { "stashed HEAD", "HEAD", "stashed index" }); ixMerger.setBase(stashHeadCommit); boolean ok = ixMerger.merge(headCommit, stashIndexCommit); if (ok) { resetIndex(revWalk.parseTree(ixMerger.getResultTreeId())); } else { throw new StashApplyFailureException(JGitText.get().stashApplyConflict); } } if (untrackedCommit != null) { ResolveMerger untrackedMerger = (ResolveMerger) strategy.newMerger(repo, true); untrackedMerger.setCommitNames(new String[] { "stashed HEAD", "HEAD", "untracked files" }); //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$ untrackedMerger.setBase(stashHeadCommit); boolean ok = untrackedMerger.merge(stashHeadCommit, untrackedCommit); if (ok) try { RevTree untrackedTree = revWalk.parseTree(untrackedMerger.getResultTreeId()); resetUntracked(untrackedTree); } catch (CheckoutConflictException e) { throw new StashApplyFailureException(JGitText.get().stashApplyConflict); } else throw new StashApplyFailureException(JGitText.get().stashApplyConflict); } } else { throw new StashApplyFailureException(JGitText.get().stashApplyConflict); } return stashId; } catch (JGitInternalException e) { throw e; } catch (IOException e) { throw new JGitInternalException(JGitText.get().stashApplyFailed, e); } finally { reader.release(); } }
From source file:org.jboss.forge.addon.git.GitUtilsImpl.java
License:Open Source License
@Override public CherryPickResult cherryPickNoMerge(final Git git, Ref src) throws GitAPIException, CantMergeCommitException { // Does the same as the original git-cherryPick // except commiting after running merger Repository repo = git.getRepository(); RevCommit newHead = null;// w w w . j av a 2 s.c o m List<Ref> cherryPickedRefs = new LinkedList<Ref>(); try (RevWalk revWalk = new RevWalk(repo)) { // get the head commit Ref headRef = repo.findRef(Constants.HEAD); if (headRef == null) throw new NoHeadException(JGitText.get().commitOnRepoWithoutHEADCurrentlyNotSupported); RevCommit headCommit = revWalk.parseCommit(headRef.getObjectId()); newHead = headCommit; // get the commit to be cherry-picked // handle annotated tags ObjectId srcObjectId = src.getPeeledObjectId(); if (srcObjectId == null) srcObjectId = src.getObjectId(); RevCommit srcCommit = revWalk.parseCommit(srcObjectId); // get the parent of the commit to cherry-pick if (srcCommit.getParentCount() == 0) throw new CantMergeCommitException("Commit with zero parents cannot be merged"); if (srcCommit.getParentCount() > 1) throw new MultipleParentsNotAllowedException( MessageFormat.format(JGitText.get().canOnlyCherryPickCommitsWithOneParent, srcCommit.name(), Integer.valueOf(srcCommit.getParentCount()))); RevCommit srcParent = srcCommit.getParent(0); revWalk.parseHeaders(srcParent); ResolveMerger merger = (ResolveMerger) MergeStrategy.RESOLVE.newMerger(repo); merger.setWorkingTreeIterator(new FileTreeIterator(repo)); merger.setBase(srcParent.getTree()); if (merger.merge(headCommit, srcCommit)) { DirCacheCheckout dco = new DirCacheCheckout(repo, headCommit.getTree(), repo.lockDirCache(), merger.getResultTreeId()); dco.setFailOnConflict(true); dco.checkout(); cherryPickedRefs.add(src); } else { if (merger.failed()) return new CherryPickResult(merger.getFailingPaths()); // there are merge conflicts String message = new MergeMessageFormatter().formatWithConflicts(srcCommit.getFullMessage(), merger.getUnmergedPaths()); repo.writeCherryPickHead(srcCommit.getId()); repo.writeMergeCommitMsg(message); return CherryPickResult.CONFLICT; } } catch (IOException e) { throw new JGitInternalException( MessageFormat.format(JGitText.get().exceptionCaughtDuringExecutionOfCherryPickCommand, e), e); } return new CherryPickResult(newHead, cherryPickedRefs); }
From source file:org.jboss.forge.git.GitUtils.java
License:Open Source License
public static CherryPickResult cherryPickNoMerge(final Git git, Ref src) throws GitAPIException, CantMergeCommitWithZeroParentsException { // Does the same as the original git-cherryPick // except commiting after running merger Repository repo = git.getRepository(); RevCommit newHead = null;//from w w w . java 2 s . c om List<Ref> cherryPickedRefs = new LinkedList<Ref>(); RevWalk revWalk = new RevWalk(repo); try { // get the head commit Ref headRef = repo.getRef(Constants.HEAD); if (headRef == null) throw new NoHeadException(JGitText.get().commitOnRepoWithoutHEADCurrentlyNotSupported); RevCommit headCommit = revWalk.parseCommit(headRef.getObjectId()); newHead = headCommit; // get the commit to be cherry-picked // handle annotated tags ObjectId srcObjectId = src.getPeeledObjectId(); if (srcObjectId == null) srcObjectId = src.getObjectId(); RevCommit srcCommit = revWalk.parseCommit(srcObjectId); // get the parent of the commit to cherry-pick if (srcCommit.getParentCount() == 0) throw new CantMergeCommitWithZeroParentsException("Commit with zero parents cannot be merged"); if (srcCommit.getParentCount() > 1) throw new MultipleParentsNotAllowedException( MessageFormat.format(JGitText.get().canOnlyCherryPickCommitsWithOneParent, srcCommit.name(), Integer.valueOf(srcCommit.getParentCount()))); RevCommit srcParent = srcCommit.getParent(0); revWalk.parseHeaders(srcParent); ResolveMerger merger = (ResolveMerger) MergeStrategy.RESOLVE.newMerger(repo); merger.setWorkingTreeIterator(new FileTreeIterator(repo)); merger.setBase(srcParent.getTree()); if (merger.merge(headCommit, srcCommit)) { DirCacheCheckout dco = new DirCacheCheckout(repo, headCommit.getTree(), repo.lockDirCache(), merger.getResultTreeId()); dco.setFailOnConflict(true); dco.checkout(); cherryPickedRefs.add(src); } else { if (merger.failed()) return new CherryPickResult(merger.getFailingPaths()); // there are merge conflicts String message = new MergeMessageFormatter().formatWithConflicts(srcCommit.getFullMessage(), merger.getUnmergedPaths()); repo.writeCherryPickHead(srcCommit.getId()); repo.writeMergeCommitMsg(message); return CherryPickResult.CONFLICT; } } catch (IOException e) { throw new JGitInternalException( MessageFormat.format(JGitText.get().exceptionCaughtDuringExecutionOfCherryPickCommand, e), e); } finally { revWalk.release(); } return new CherryPickResult(newHead, cherryPickedRefs); }
From source file:org.kie.commons.java.nio.fs.jgit.util.JGitUtil.java
License:Apache License
public static MergeResult mergeBranches(final Git git, final String source, final String target) throws Exception { final Repository repo = git.getRepository(); final MergeStrategy mergeStrategy = MergeStrategy.RESOLVE; final List<Ref> commits = new LinkedList<Ref>(); final boolean squash = false; RevWalk revWalk = null;/*from ww w .j av a 2 s . c om*/ DirCacheCheckout dco = null; try { Ref head = repo.getRef(Constants.HEAD); if (head == null) { throw new NoHeadException(JGitText.get().commitOnRepoWithoutHEADCurrentlyNotSupported); } final StringBuilder refLogMessage = new StringBuilder("merge "); // Check for FAST_FORWARD, ALREADY_UP_TO_DATE revWalk = new RevWalk(repo); // we know for now there is only one commit Ref ref = commits.get(0); refLogMessage.append(ref.getName()); // handle annotated tags ObjectId objectId = ref.getPeeledObjectId(); if (objectId == null) { objectId = ref.getObjectId(); } final RevCommit srcCommit = revWalk.lookupCommit(objectId); ObjectId headId = head.getObjectId(); if (headId == null) { revWalk.parseHeaders(srcCommit); dco = new DirCacheCheckout(repo, repo.lockDirCache(), srcCommit.getTree()); dco.setFailOnConflict(true); dco.checkout(); RefUpdate refUpdate = repo.updateRef(head.getTarget().getName()); refUpdate.setNewObjectId(objectId); refUpdate.setExpectedOldObjectId(null); refUpdate.setRefLogMessage("initial pull", false); if (refUpdate.update() != RefUpdate.Result.NEW) { throw new NoHeadException(JGitText.get().commitOnRepoWithoutHEADCurrentlyNotSupported); } return new MergeResult(srcCommit, srcCommit, new ObjectId[] { null, srcCommit }, MergeStatus.FAST_FORWARD, mergeStrategy, null, null); } final RevCommit headCommit = revWalk.lookupCommit(headId); if (revWalk.isMergedInto(srcCommit, headCommit)) { return new MergeResult(headCommit, srcCommit, new ObjectId[] { headCommit, srcCommit }, ALREADY_UP_TO_DATE, mergeStrategy, null, null); } else if (revWalk.isMergedInto(headCommit, srcCommit)) { // FAST_FORWARD detected: skip doing a real merge but only // update HEAD refLogMessage.append(": " + FAST_FORWARD); dco = new DirCacheCheckout(repo, headCommit.getTree(), repo.lockDirCache(), srcCommit.getTree()); dco.setFailOnConflict(true); dco.checkout(); String msg = null; ObjectId newHead, base = null; final MergeStatus mergeStatus; if (!squash) { updateHead(git, refLogMessage, srcCommit, headId); newHead = base = srcCommit; mergeStatus = FAST_FORWARD; } else { msg = JGitText.get().squashCommitNotUpdatingHEAD; newHead = base = headId; mergeStatus = FAST_FORWARD_SQUASHED; final List<RevCommit> squashedCommits = RevWalkUtils.find(revWalk, srcCommit, headCommit); final String squashMessage = new SquashMessageFormatter().format(squashedCommits, head); repo.writeSquashCommitMsg(squashMessage); } return new MergeResult(newHead, base, new ObjectId[] { headCommit, srcCommit }, mergeStatus, mergeStrategy, null, msg); } else { String mergeMessage = ""; if (!squash) { mergeMessage = new MergeMessageFormatter().format(commits, head); repo.writeMergeCommitMsg(mergeMessage); repo.writeMergeHeads(Arrays.asList(ref.getObjectId())); } else { final List<RevCommit> squashedCommits = RevWalkUtils.find(revWalk, srcCommit, headCommit); final String squashMessage = new SquashMessageFormatter().format(squashedCommits, head); repo.writeSquashCommitMsg(squashMessage); } boolean noProblems; final Merger merger = mergeStrategy.newMerger(repo); final Map<String, org.eclipse.jgit.merge.MergeResult<?>> lowLevelResults; final Map<String, ResolveMerger.MergeFailureReason> failingPaths; final List<String> unmergedPaths; if (merger instanceof ResolveMerger) { ResolveMerger resolveMerger = (ResolveMerger) merger; resolveMerger.setCommitNames(new String[] { "BASE", "HEAD", ref.getName() }); resolveMerger.setWorkingTreeIterator(new FileTreeIterator(repo)); noProblems = merger.merge(headCommit, srcCommit); lowLevelResults = resolveMerger.getMergeResults(); failingPaths = resolveMerger.getFailingPaths(); unmergedPaths = resolveMerger.getUnmergedPaths(); } else { noProblems = merger.merge(headCommit, srcCommit); lowLevelResults = emptyMap(); failingPaths = emptyMap(); unmergedPaths = emptyList(); } refLogMessage.append(": Merge made by "); refLogMessage.append(mergeStrategy.getName()); refLogMessage.append('.'); if (noProblems) { dco = new DirCacheCheckout(repo, headCommit.getTree(), repo.lockDirCache(), merger.getResultTreeId()); dco.setFailOnConflict(true); dco.checkout(); String msg = null; RevCommit newHead = null; MergeStatus mergeStatus = null; if (!squash) { newHead = new Git(repo).commit().setReflogComment(refLogMessage.toString()).call(); mergeStatus = MERGED; } else { msg = JGitText.get().squashCommitNotUpdatingHEAD; newHead = headCommit; mergeStatus = MERGED_SQUASHED; } return new MergeResult(newHead.getId(), null, new ObjectId[] { headCommit.getId(), srcCommit.getId() }, mergeStatus, mergeStrategy, null, msg); } else { if (failingPaths != null && !failingPaths.isEmpty()) { repo.writeMergeCommitMsg(null); repo.writeMergeHeads(null); return new MergeResult(null, merger.getBaseCommit(0, 1), new ObjectId[] { headCommit.getId(), srcCommit.getId() }, FAILED, mergeStrategy, lowLevelResults, failingPaths, null); } else { final String mergeMessageWithConflicts = new MergeMessageFormatter() .formatWithConflicts(mergeMessage, unmergedPaths); repo.writeMergeCommitMsg(mergeMessageWithConflicts); return new MergeResult(null, merger.getBaseCommit(0, 1), new ObjectId[] { headCommit.getId(), srcCommit.getId() }, CONFLICTING, mergeStrategy, lowLevelResults, null); } } } } catch (org.eclipse.jgit.errors.CheckoutConflictException e) { final List<String> conflicts = (dco == null) ? Collections.<String>emptyList() : dco.getConflicts(); throw new CheckoutConflictException(conflicts, e); } catch (java.io.IOException e) { throw new JGitInternalException( MessageFormat.format(JGitText.get().exceptionCaughtDuringExecutionOfMergeCommand, e), e); } finally { if (revWalk != null) { revWalk.release(); } } }