private boolean processOne(Candidate n) throws IOException {
RevCommit parent = n.getParent(0);
if (parent == null) return split(n.getNextCandidate(0), n);
revPool.parseHeaders(parent);
if (find(parent, n.sourcePath)) {
if (idBuf.equals(n.sourceBlob)) return blameEntireRegionOnParent(n, parent);
return splitBlameWithParent(n, parent);
}
if (n.sourceCommit == null) return result(n);
DiffEntry r = findRename(parent, n.sourceCommit, n.sourcePath);
if (r == null) return result(n);
if (0 == r.getOldId().prefixCompare(n.sourceBlob)) {
// A 100% rename without any content change can also
// skip directly to the parent.
n.sourceCommit = parent;
n.sourcePath = PathFilter.create(r.getOldPath());
push(n);
return false;
}
Candidate next = n.create(parent, PathFilter.create(r.getOldPath()));
next.sourceBlob = r.getOldId().toObjectId();
next.renameScore = r.getScore();
next.loadText(reader);
return split(next, n);
}
protected boolean hasIgnoreFile(Repository repository, RevCommit revCommit, String relativePath)
throws Exception {
if (_ignoreFileName == null) {
return false;
}
try (TreeWalk treeWalk = new TreeWalk(repository)) {
treeWalk.addTree(revCommit.getTree());
if (revCommit.getParentCount() > 0) {
RevCommit parentRevCommit = revCommit.getParent(0);
treeWalk.addTree(parentRevCommit.getTree());
}
treeWalk.setRecursive(true);
treeWalk.setFilter(
AndTreeFilter.create(
PathFilter.create(relativePath + "/" + _ignoreFileName), TreeFilter.ANY_DIFF));
return treeWalk.next();
}
}
/**
* Create a blame generator for the repository and path (relative to repository)
*
* @param repository repository to access revision data from.
* @param path initial path of the file to start scanning (relative to the repository).
*/
public BlameGenerator(Repository repository, String path) {
this.repository = repository;
this.resultPath = PathFilter.create(path);
idBuf = new MutableObjectId();
setFollowFileRenames(true);
initRevPool(false);
remaining = -1;
}
@SuppressWarnings("nls")
@Override
public String toString() {
return "(FOLLOW("
+ path.toString()
+ ")" //
+ " AND " //
+ ANY_DIFF.toString()
+ ")";
}
private DiffEntry findRename(RevCommit parent, RevCommit commit, PathFilter path)
throws IOException {
if (renameDetector == null) return null;
treeWalk.setFilter(TreeFilter.ANY_DIFF);
treeWalk.reset(parent.getTree(), commit.getTree());
renameDetector.reset();
renameDetector.addAll(DiffEntry.scan(treeWalk));
for (DiffEntry ent : renameDetector.compute()) {
if (isRename(ent) && ent.getNewPath().equals(path.getPath())) return ent;
}
return null;
}
private boolean isModified(String path) throws CorruptObjectException, IOException {
NameConflictTreeWalk tw = new NameConflictTreeWalk(repo);
tw.addTree(new DirCacheIterator(dc));
tw.addTree(new FileTreeIterator(repo));
tw.setRecursive(true);
tw.setFilter(PathFilter.create(path));
DirCacheIterator dcIt;
WorkingTreeIterator wtIt;
while (tw.next()) {
dcIt = tw.getTree(0, DirCacheIterator.class);
wtIt = tw.getTree(1, WorkingTreeIterator.class);
if (dcIt == null || wtIt == null) return true;
if (wtIt.isModified(dcIt.getDirCacheEntry(), true)) {
return true;
}
}
return false;
}
/**
* Returns the list of files in the specified folder at the specified commit. If the repository
* does not exist or is empty, an empty list is returned.
*
* @param repository
* @param path if unspecified, root folder is assumed.
* @param commit if null, HEAD is assumed.
* @return list of files in specified path
*/
public static List<PathModel> getFilesInPath(
Repository repository, String path, RevCommit commit) {
List<PathModel> list = new ArrayList<PathModel>();
if (!hasCommits(repository)) {
return list;
}
if (commit == null) {
commit = getCommit(repository, null);
}
final TreeWalk tw = new TreeWalk(repository);
try {
tw.addTree(commit.getTree());
if (!(path == null)) {
PathFilter f = PathFilter.create(path);
tw.setFilter(f);
tw.setRecursive(false);
boolean foundFolder = false;
while (tw.next()) {
if (!foundFolder && tw.isSubtree()) {
tw.enterSubtree();
}
if (tw.getPathString().equals(path)) {
foundFolder = true;
continue;
}
if (foundFolder) {
list.add(getPathModel(tw, path, commit));
}
}
} else {
tw.setRecursive(false);
while (tw.next()) {
list.add(getPathModel(tw, null, commit));
}
}
} catch (IOException e) {
// error(e, repository, "{0} failed to get files for commit {1}", commit.getName());
Logger.error(e, e.getMessage());
} finally {
tw.release();
}
Collections.sort(list);
return list;
}
/**
* Determine the differences between two trees.
*
* <p>No output is created, instead only the file paths that are different are returned. Callers
* may choose to format these paths themselves, or convert them into {@link FileHeader} instances
* with a complete edit list by calling {@link #toFileHeader(DiffEntry)}.
*
* @param a the old (or previous) side.
* @param b the new (or updated) side.
* @return the paths that are different.
* @throws IOException trees cannot be read or file contents cannot be read.
*/
public List<DiffEntry> scan(AbstractTreeIterator a, AbstractTreeIterator b) throws IOException {
assertHaveRepository();
TreeWalk walk = new TreeWalk(reader);
walk.addTree(a);
walk.addTree(b);
walk.setRecursive(true);
TreeFilter filter = getDiffTreeFilterFor(a, b);
if (pathFilter instanceof FollowFilter) {
walk.setFilter(
AndTreeFilter.create(PathFilter.create(((FollowFilter) pathFilter).getPath()), filter));
} else {
walk.setFilter(AndTreeFilter.create(pathFilter, filter));
}
source = new ContentSource.Pair(source(a), source(b));
List<DiffEntry> files = DiffEntry.scan(walk);
if (pathFilter instanceof FollowFilter && isAdd(files)) {
// The file we are following was added here, find where it
// came from so we can properly show the rename or copy,
// then continue digging backwards.
//
a.reset();
b.reset();
walk.reset();
walk.addTree(a);
walk.addTree(b);
walk.setFilter(filter);
if (renameDetector == null) setDetectRenames(true);
files = updateFollowFilter(detectRenames(DiffEntry.scan(walk)));
} else if (renameDetector != null) files = detectRenames(files);
return files;
}
/** @return the path this filter matches. */
public String getPath() {
return path.getPath();
}
/**
* Is the configured already a submodule in the index?
*
* @return true if submodule exists in index, false otherwise
* @throws IOException
*/
protected boolean submoduleExists() throws IOException {
TreeFilter filter = PathFilter.create(path);
return SubmoduleWalk.forIndex(repo).setFilter(filter).next();
}
@Override
public void execute() throws BuildException {
if (_property == null) {
throw new BuildException("Property attribute is required", getLocation());
}
if (_path == null) {
throw new BuildException("Path attribute is required", getLocation());
}
File gitDir = PathUtil.getGitDir(_gitDir, getProject(), getLocation());
String relativePath = PathUtil.toRelativePath(gitDir, _path);
if (_useCache) {
String hash = _hashes.get(relativePath);
if (hash != null) {
Project currentProject = getProject();
currentProject.setNewProperty(_property, hash);
return;
}
}
try (Repository repository = RepositoryCache.open(FileKey.exact(gitDir, FS.DETECTED))) {
RevWalk revWalk = new RevWalk(repository);
revWalk.setRetainBody(false);
revWalk.markStart(revWalk.parseCommit(repository.resolve(Constants.HEAD)));
if (_ignoreFileName == null) {
revWalk.setRevFilter(MaxCountRevFilter.create(1));
} else {
revWalk.setRevFilter(MaxCountRevFilter.create(2));
}
revWalk.setTreeFilter(
AndTreeFilter.create(PathFilter.create(relativePath), TreeFilter.ANY_DIFF));
RevCommit revCommit = revWalk.next();
if (revCommit == null) {
throw new IllegalStateException("Unable to find any commit under " + _path);
}
if (hasIgnoreFile(repository, revCommit, relativePath)) {
RevCommit secondRevCommit = revWalk.next();
if (secondRevCommit != null) {
revCommit = secondRevCommit;
}
}
Project currentProject = getProject();
String hash = revCommit.name();
currentProject.setNewProperty(_property, hash);
if (_useCache) {
_hashes.put(relativePath, hash);
}
revWalk.dispose();
} catch (Exception e) {
throw new BuildException("Unable to get head hash for path " + _path, e);
}
}
private boolean processMerge(Candidate n) throws IOException {
int pCnt = n.getParentCount();
// If any single parent exactly matches the merge, follow only
// that one parent through history.
ObjectId[] ids = null;
for (int pIdx = 0; pIdx < pCnt; pIdx++) {
RevCommit parent = n.getParent(pIdx);
revPool.parseHeaders(parent);
if (!find(parent, n.sourcePath)) continue;
if (!(n instanceof ReverseCandidate) && idBuf.equals(n.sourceBlob))
return blameEntireRegionOnParent(n, parent);
if (ids == null) ids = new ObjectId[pCnt];
ids[pIdx] = idBuf.toObjectId();
}
// If rename detection is enabled, search for any relevant names.
DiffEntry[] renames = null;
if (renameDetector != null) {
renames = new DiffEntry[pCnt];
for (int pIdx = 0; pIdx < pCnt; pIdx++) {
RevCommit parent = n.getParent(pIdx);
if (ids != null && ids[pIdx] != null) continue;
DiffEntry r = findRename(parent, n.sourceCommit, n.sourcePath);
if (r == null) continue;
if (n instanceof ReverseCandidate) {
if (ids == null) ids = new ObjectId[pCnt];
ids[pCnt] = r.getOldId().toObjectId();
} else if (0 == r.getOldId().prefixCompare(n.sourceBlob)) {
// A 100% rename without any content change can also
// skip directly to the parent. Note this bypasses an
// earlier parent that had the path (above) but did not
// have an exact content match. For performance reasons
// we choose to follow the one parent over trying to do
// possibly both parents.
n.sourcePath = PathFilter.create(r.getOldPath());
return blameEntireRegionOnParent(n, parent);
}
renames[pIdx] = r;
}
}
// Construct the candidate for each parent.
Candidate[] parents = new Candidate[pCnt];
for (int pIdx = 0; pIdx < pCnt; pIdx++) {
RevCommit parent = n.getParent(pIdx);
Candidate p;
if (renames != null && renames[pIdx] != null) {
p = n.create(parent, PathFilter.create(renames[pIdx].getOldPath()));
p.renameScore = renames[pIdx].getScore();
p.sourceBlob = renames[pIdx].getOldId().toObjectId();
} else if (ids != null && ids[pIdx] != null) {
p = n.create(parent, n.sourcePath);
p.sourceBlob = ids[pIdx];
} else {
continue;
}
EditList editList;
if (n instanceof ReverseCandidate && p.sourceBlob.equals(n.sourceBlob)) {
// This special case happens on ReverseCandidate forks.
p.sourceText = n.sourceText;
editList = new EditList(0);
} else {
p.loadText(reader);
editList = diffAlgorithm.diff(textComparator, p.sourceText, n.sourceText);
}
if (editList.isEmpty()) {
// Ignoring whitespace (or some other special comparator) can
// cause non-identical blobs to have an empty edit list. In
// a case like this push the parent alone.
if (n instanceof ReverseCandidate) {
parents[pIdx] = p;
continue;
}
p.regionList = n.regionList;
n.regionList = null;
parents[pIdx] = p;
break;
}
p.takeBlame(editList, n);
// Only remember this parent candidate if there is at least
// one region that was blamed on the parent.
if (p.regionList != null) {
// Reverse blame requires inverting the regions. This puts
// the regions the parent deleted from us into the parent,
// and retains the common regions to look at other parents
// for deletions.
if (n instanceof ReverseCandidate) {
Region r = p.regionList;
p.regionList = n.regionList;
n.regionList = r;
}
parents[pIdx] = p;
}
}
if (n instanceof ReverseCandidate) {
// On a reverse blame report all deletions found in the children,
// and pass on to them a copy of our region list.
Candidate resultHead = null;
Candidate resultTail = null;
for (int pIdx = 0; pIdx < pCnt; pIdx++) {
Candidate p = parents[pIdx];
if (p == null) continue;
if (p.regionList != null) {
Candidate r = p.copy(p.sourceCommit);
if (resultTail != null) {
resultTail.queueNext = r;
resultTail = r;
} else {
resultHead = r;
resultTail = r;
}
}
if (n.regionList != null) {
p.regionList = n.regionList.deepCopy();
push(p);
}
}
if (resultHead != null) return result(resultHead);
return false;
}
// Push any parents that are still candidates.
for (int pIdx = 0; pIdx < pCnt; pIdx++) {
if (parents[pIdx] != null) push(parents[pIdx]);
}
if (n.regionList != null) return result(n);
return false;
}
private IDiffContainer buildDiffContainer(
RevCommit baseCommit, RevCommit compareCommit, IProgressMonitor monitor)
throws IOException, InterruptedException {
boolean useIndex = compareVersion.equals(CompareTreeView.INDEX_VERSION);
boolean checkIgnored = false;
IDiffContainer result = new DiffNode(Differencer.CONFLICTING);
try (TreeWalk tw = new TreeWalk(repository)) {
// filter by selected resources
if (filterPathStrings.size() > 1) {
List<TreeFilter> suffixFilters = new ArrayList<TreeFilter>();
for (String filterPath : filterPathStrings)
suffixFilters.add(PathFilter.create(filterPath));
TreeFilter otf = OrTreeFilter.create(suffixFilters);
tw.setFilter(otf);
} else if (filterPathStrings.size() > 0) {
String path = filterPathStrings.get(0);
if (path.length() != 0) tw.setFilter(PathFilter.create(path));
}
tw.setRecursive(true);
int baseTreeIndex;
if (baseCommit == null) {
// compare workspace with something
checkIgnored = true;
baseTreeIndex = tw.addTree(new FileTreeIterator(repository));
} else
baseTreeIndex =
tw.addTree(
new CanonicalTreeParser(null, repository.newObjectReader(), baseCommit.getTree()));
int compareTreeIndex;
if (!useIndex)
compareTreeIndex =
tw.addTree(
new CanonicalTreeParser(
null, repository.newObjectReader(), compareCommit.getTree()));
else
// compare something with the index
compareTreeIndex = tw.addTree(new DirCacheIterator(repository.readDirCache()));
while (tw.next()) {
if (monitor.isCanceled()) throw new InterruptedException();
AbstractTreeIterator compareVersionIterator =
tw.getTree(compareTreeIndex, AbstractTreeIterator.class);
AbstractTreeIterator baseVersionIterator =
tw.getTree(baseTreeIndex, AbstractTreeIterator.class);
if (checkIgnored
&& baseVersionIterator != null
&& ((WorkingTreeIterator) baseVersionIterator).isEntryIgnored()) continue;
if (compareVersionIterator != null && baseVersionIterator != null) {
boolean equalContent =
compareVersionIterator
.getEntryObjectId()
.equals(baseVersionIterator.getEntryObjectId());
if (equalContent) continue;
}
String encoding = null;
GitFileRevision compareRev = null;
if (compareVersionIterator != null) {
String entryPath = compareVersionIterator.getEntryPathString();
encoding = CompareCoreUtils.getResourceEncoding(repository, entryPath);
if (!useIndex)
compareRev =
GitFileRevision.inCommit(
repository, compareCommit, entryPath, tw.getObjectId(compareTreeIndex));
else compareRev = GitFileRevision.inIndex(repository, entryPath);
}
GitFileRevision baseRev = null;
if (baseVersionIterator != null) {
String entryPath = baseVersionIterator.getEntryPathString();
if (encoding == null) {
encoding = CompareCoreUtils.getResourceEncoding(repository, entryPath);
}
baseRev =
GitFileRevision.inCommit(
repository, baseCommit, entryPath, tw.getObjectId(baseTreeIndex));
}
if (compareVersionIterator != null && baseVersionIterator != null) {
monitor.setTaskName(baseVersionIterator.getEntryPathString());
// content exists on both sides
add(
result,
baseVersionIterator.getEntryPathString(),
new DiffNode(
new FileRevisionTypedElement(compareRev, encoding),
new FileRevisionTypedElement(baseRev, encoding)));
} else if (baseVersionIterator != null && compareVersionIterator == null) {
monitor.setTaskName(baseVersionIterator.getEntryPathString());
// only on base side
add(
result,
baseVersionIterator.getEntryPathString(),
new DiffNode(
Differencer.DELETION | Differencer.RIGHT,
null,
null,
new FileRevisionTypedElement(baseRev, encoding)));
} else if (compareVersionIterator != null && baseVersionIterator == null) {
monitor.setTaskName(compareVersionIterator.getEntryPathString());
// only on compare side
add(
result,
compareVersionIterator.getEntryPathString(),
new DiffNode(
Differencer.ADDITION | Differencer.RIGHT,
null,
new FileRevisionTypedElement(compareRev, encoding),
null));
}
if (monitor.isCanceled()) throw new InterruptedException();
}
return result;
}
}
/** @return path file path being processed. */
public String getResultPath() {
return resultPath.getPath();
}
private void buildMaps(
Repository repository,
RevCommit baseCommit,
RevCommit compareCommit,
IProgressMonitor monitor)
throws InterruptedException, IOException {
monitor.beginTask(UIText.CompareTreeView_AnalyzingRepositoryTaskText, IProgressMonitor.UNKNOWN);
boolean useIndex = compareVersion.equals(INDEX_VERSION);
deletedPaths.clear();
equalContentPaths.clear();
baseVersionMap.clear();
compareVersionMap.clear();
compareVersionPathsWithChildren.clear();
addedPaths.clear();
baseVersionPathsWithChildren.clear();
boolean checkIgnored = false;
TreeWalk tw = new TreeWalk(repository);
try {
int baseTreeIndex;
if (baseCommit == null) {
checkIgnored = true;
baseTreeIndex =
tw.addTree(
new AdaptableFileTreeIterator(
repository, ResourcesPlugin.getWorkspace().getRoot()));
} else
baseTreeIndex =
tw.addTree(
new CanonicalTreeParser(null, repository.newObjectReader(), baseCommit.getTree()));
int compareTreeIndex;
if (!useIndex)
compareTreeIndex =
tw.addTree(
new CanonicalTreeParser(
null, repository.newObjectReader(), compareCommit.getTree()));
else compareTreeIndex = tw.addTree(new DirCacheIterator(repository.readDirCache()));
if (input instanceof IResource[]) {
IResource[] resources = (IResource[]) input;
List<TreeFilter> orFilters = new ArrayList<TreeFilter>(resources.length);
for (IResource resource : resources) {
String relPath = repositoryMapping.getRepoRelativePath(resource);
if (relPath.length() > 0) orFilters.add(PathFilter.create(relPath));
}
if (orFilters.size() > 1) tw.setFilter(OrTreeFilter.create(orFilters));
else if (orFilters.size() == 1) tw.setFilter(orFilters.get(0));
}
tw.setRecursive(true);
if (monitor.isCanceled()) throw new InterruptedException();
while (tw.next()) {
if (monitor.isCanceled()) throw new InterruptedException();
AbstractTreeIterator compareVersionIterator =
tw.getTree(compareTreeIndex, AbstractTreeIterator.class);
AbstractTreeIterator baseVersionIterator =
tw.getTree(baseTreeIndex, AbstractTreeIterator.class);
if (checkIgnored
&& baseVersionIterator != null
&& ((WorkingTreeIterator) baseVersionIterator).isEntryIgnored()) continue;
if (compareVersionIterator != null && baseVersionIterator != null) {
monitor.setTaskName(baseVersionIterator.getEntryPathString());
IPath currentPath = new Path(baseVersionIterator.getEntryPathString());
if (!useIndex)
compareVersionMap.put(
currentPath,
GitFileRevision.inCommit(
repository,
compareCommit,
baseVersionIterator.getEntryPathString(),
tw.getObjectId(compareTreeIndex)));
else
compareVersionMap.put(
currentPath,
GitFileRevision.inIndex(repository, baseVersionIterator.getEntryPathString()));
if (baseCommit != null)
baseVersionMap.put(
currentPath,
GitFileRevision.inCommit(
repository,
baseCommit,
baseVersionIterator.getEntryPathString(),
tw.getObjectId(baseTreeIndex)));
boolean equalContent =
compareVersionIterator
.getEntryObjectId()
.equals(baseVersionIterator.getEntryObjectId());
if (equalContent) equalContentPaths.add(currentPath);
if (equalContent && !showEquals) continue;
while (currentPath.segmentCount() > 0) {
currentPath = currentPath.removeLastSegments(1);
if (!baseVersionPathsWithChildren.add(currentPath)) break;
}
} else if (baseVersionIterator != null && compareVersionIterator == null) {
monitor.setTaskName(baseVersionIterator.getEntryPathString());
// only on base side
IPath currentPath = new Path(baseVersionIterator.getEntryPathString());
addedPaths.add(currentPath);
if (baseCommit != null)
baseVersionMap.put(
currentPath,
GitFileRevision.inCommit(
repository,
baseCommit,
baseVersionIterator.getEntryPathString(),
tw.getObjectId(baseTreeIndex)));
while (currentPath.segmentCount() > 0) {
currentPath = currentPath.removeLastSegments(1);
if (!baseVersionPathsWithChildren.add(currentPath)) break;
}
} else if (compareVersionIterator != null && baseVersionIterator == null) {
monitor.setTaskName(compareVersionIterator.getEntryPathString());
// only on compare side
IPath currentPath = new Path(compareVersionIterator.getEntryPathString());
deletedPaths.add(currentPath);
List<PathNodeAdapter> children =
compareVersionPathsWithChildren.get(currentPath.removeLastSegments(1));
if (children == null) {
children = new ArrayList<PathNodeAdapter>(1);
compareVersionPathsWithChildren.put(currentPath.removeLastSegments(1), children);
}
children.add(new PathNodeAdapter(new PathNode(currentPath, Type.FILE_DELETED)));
if (!useIndex)
compareVersionMap.put(
currentPath,
GitFileRevision.inCommit(
repository,
compareCommit,
compareVersionIterator.getEntryPathString(),
tw.getObjectId(compareTreeIndex)));
else
compareVersionMap.put(
currentPath,
GitFileRevision.inIndex(repository, compareVersionIterator.getEntryPathString()));
}
}
} finally {
tw.release();
monitor.done();
}
}
@Override
public boolean shouldBeRecursive() {
return path.shouldBeRecursive() || ANY_DIFF.shouldBeRecursive();
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
handleAuth(req);
resp.setCharacterEncoding("UTF-8");
final PrintWriter out = resp.getWriter();
try {
String pathInfo = req.getPathInfo();
Pattern pattern = Pattern.compile("/([^/]*)(?:/([^/]*)(?:/(.*))?)?");
Matcher matcher = pattern.matcher(pathInfo);
matcher.matches();
String projectName = null;
String refName = null;
String filePath = null;
if (matcher.groupCount() > 0) {
projectName = matcher.group(1);
refName = matcher.group(2);
filePath = matcher.group(3);
if (projectName == null || projectName.equals("")) {
projectName = null;
} else {
projectName = java.net.URLDecoder.decode(projectName, "UTF-8");
}
if (refName == null || refName.equals("")) {
refName = null;
} else {
refName = java.net.URLDecoder.decode(refName, "UTF-8");
}
if (filePath == null || filePath.equals("")) {
filePath = null;
} else {
filePath = java.net.URLDecoder.decode(filePath, "UTF-8");
}
}
if (projectName != null) {
if (filePath == null) filePath = "";
NameKey projName = NameKey.parse(projectName);
ProjectControl control;
try {
control = projControlFactory.controlFor(projName);
if (!control.isVisible()) {
log.debug("Project not visible!");
resp.sendError(
HttpServletResponse.SC_UNAUTHORIZED,
"You need to be logged in to see private projects");
return;
}
} catch (NoSuchProjectException e1) {
}
Repository repo = repoManager.openRepository(projName);
if (refName == null) {
JSONArray contents = new JSONArray();
List<Ref> call;
try {
call = new Git(repo).branchList().call();
Git git = new Git(repo);
for (Ref ref : call) {
JSONObject jsonObject = new JSONObject();
try {
jsonObject.put("name", ref.getName());
jsonObject.put("type", "ref");
jsonObject.put("size", "0");
jsonObject.put("path", "");
jsonObject.put("project", projectName);
jsonObject.put("ref", ref.getName());
lastCommit(git, null, ref.getObjectId(), jsonObject);
} catch (JSONException e) {
}
contents.put(jsonObject);
}
String response = contents.toString();
resp.setContentType("application/json");
resp.setHeader("Cache-Control", "no-cache");
resp.setHeader("ETag", "W/\"" + response.length() + "-" + response.hashCode() + "\"");
log.debug(response);
out.write(response);
} catch (GitAPIException e) {
}
} else {
Ref head = repo.getRef(refName);
if (head == null) {
JSONArray contents = new JSONArray();
String response = contents.toString();
resp.setContentType("application/json");
resp.setHeader("Cache-Control", "no-cache");
resp.setHeader("ETag", "W/\"" + response.length() + "-" + response.hashCode() + "\"");
log.debug(response);
out.write(response);
return;
}
RevWalk walk = new RevWalk(repo);
// add try catch to catch failures
Git git = new Git(repo);
RevCommit commit = walk.parseCommit(head.getObjectId());
RevTree tree = commit.getTree();
TreeWalk treeWalk = new TreeWalk(repo);
treeWalk.addTree(tree);
treeWalk.setRecursive(false);
if (!filePath.equals("")) {
PathFilter pathFilter = PathFilter.create(filePath);
treeWalk.setFilter(pathFilter);
}
if (!treeWalk.next()) {
CanonicalTreeParser canonicalTreeParser =
treeWalk.getTree(0, CanonicalTreeParser.class);
JSONArray contents = new JSONArray();
if (canonicalTreeParser != null) {
while (!canonicalTreeParser.eof()) {
String path = canonicalTreeParser.getEntryPathString();
FileMode mode = canonicalTreeParser.getEntryFileMode();
listEntry(
path,
mode.equals(FileMode.TREE) ? "dir" : "file",
"0",
path,
projectName,
head.getName(),
git,
contents);
canonicalTreeParser.next();
}
}
String response = contents.toString();
resp.setContentType("application/json");
resp.setHeader("Cache-Control", "no-cache");
resp.setHeader("ETag", "\"" + tree.getId().getName() + "\"");
log.debug(response);
out.write(response);
} else {
// if (treeWalk.isSubtree()) {
// treeWalk.enterSubtree();
// }
JSONArray contents = getListEntries(treeWalk, repo, git, head, filePath, projectName);
String response = contents.toString();
resp.setContentType("application/json");
resp.setHeader("Cache-Control", "no-cache");
resp.setHeader("ETag", "\"" + tree.getId().getName() + "\"");
log.debug(response);
out.write(response);
}
walk.release();
treeWalk.release();
}
}
} catch (RepositoryNotFoundException e) {
handleException(resp, e, 400);
} catch (MissingObjectException e) {
// example "Missing unknown 7035305927ca125757ecd8407e608f6dcf0bd8a5"
// usually indicative of being unable to locate a commit from a submodule
log.error(e.getMessage(), e);
String msg =
e.getMessage()
+ ". This exception could have been caused by the use of a git submodule, "
+ "which is currently not supported by the repository browser.";
handleException(resp, new Exception(msg), 501);
} catch (IOException e) {
handleException(resp, e, 500);
} finally {
out.close();
}
}
private boolean handleGetDiff(
HttpServletRequest request,
HttpServletResponse response,
Repository db,
String scope,
String pattern,
OutputStream out)
throws Exception {
Git git = new Git(db);
DiffCommand diff = git.diff();
diff.setOutputStream(new BufferedOutputStream(out));
AbstractTreeIterator oldTree;
AbstractTreeIterator newTree = new FileTreeIterator(db);
if (scope.contains("..")) { // $NON-NLS-1$
String[] commits = scope.split("\\.\\."); // $NON-NLS-1$
if (commits.length != 2) {
String msg = NLS.bind("Failed to generate diff for {0}", scope);
return statusHandler.handleRequest(
request,
response,
new ServerStatus(IStatus.ERROR, HttpServletResponse.SC_BAD_REQUEST, msg, null));
}
oldTree = getTreeIterator(db, commits[0]);
newTree = getTreeIterator(db, commits[1]);
} else if (scope.equals(GitConstants.KEY_DIFF_CACHED)) {
ObjectId head = db.resolve(Constants.HEAD + "^{tree}"); // $NON-NLS-1$
if (head == null) {
String msg = NLS.bind("Failed to generate diff for {0}, no HEAD", scope);
return statusHandler.handleRequest(
request,
response,
new ServerStatus(IStatus.ERROR, HttpServletResponse.SC_BAD_REQUEST, msg, null));
}
CanonicalTreeParser p = new CanonicalTreeParser();
ObjectReader reader = db.newObjectReader();
try {
p.reset(reader, head);
} finally {
reader.release();
}
oldTree = p;
newTree = new DirCacheIterator(db.readDirCache());
} else if (scope.equals(GitConstants.KEY_DIFF_DEFAULT)) {
oldTree = new DirCacheIterator(db.readDirCache());
} else {
oldTree = getTreeIterator(db, scope);
}
String[] paths = request.getParameterValues(ProtocolConstants.KEY_PATH);
TreeFilter filter = null;
TreeFilter pathFilter = null;
if (paths != null) {
if (paths.length > 1) {
Set<TreeFilter> pathFilters = new HashSet<TreeFilter>(paths.length);
for (String path : paths) {
pathFilters.add(PathFilter.create(path));
}
pathFilter = OrTreeFilter.create(pathFilters);
} else if (paths.length == 1) {
pathFilter = PathFilter.create(paths[0]);
}
}
if (pattern != null) {
PathFilter patternFilter = PathFilter.create(pattern);
if (pathFilter != null) filter = AndTreeFilter.create(patternFilter, pathFilter);
else filter = patternFilter;
} else {
filter = pathFilter;
}
if (filter != null) diff.setPathFilter(filter);
diff.setOldTree(oldTree);
diff.setNewTree(newTree);
diff.call();
return true;
}
/**
* Create a new tree filter for a user supplied path.
*
* <p>Path strings are relative to the root of the repository. If the user's input should be
* assumed relative to a subdirectory of the repository the caller must prepend the subdirectory's
* path prior to creating the filter.
*
* <p>Path strings use '/' to delimit directories on all platforms.
*
* @param path the path to filter on. Must not be the empty string. All trailing '/' characters
* will be trimmed before string's length is checked or is used as part of the constructed
* filter.
* @return a new filter for the requested path.
* @throws IllegalArgumentException the path supplied was the empty string.
*/
public static FollowFilter create(String path) {
return new FollowFilter(PathFilter.create(path));
}
@Override
public TreeFilter clone() {
return new FollowFilter(path.clone());
}
@Override
public boolean include(final TreeWalk walker)
throws MissingObjectException, IncorrectObjectTypeException, IOException {
return path.include(walker) && ANY_DIFF.include(walker);
}
protected void addInformationForPath(
Repository repository,
Git git,
DocumentWriter writer,
RevCommit commit,
String path,
CallSpecification spec,
Values values)
throws GitAPIException, IOException {
// Make sure the path is in the canonical form we need ...
if (path.startsWith("/")) {
if (path.length() == 1) path = "";
else path = path.substring(1);
}
// Now see if we're actually referring to the "jcr:content" node ...
boolean isContentNode = false;
if (path.endsWith(JCR_CONTENT_SUFFIX)) {
isContentNode = true;
path = path.substring(0, path.length() - JCR_CONTENT_SUFFIX.length());
}
// Create the TreeWalk that we'll use to navigate the files/directories ...
final TreeWalk tw = new TreeWalk(repository);
tw.addTree(commit.getTree());
if ("".equals(path)) {
// This is the top-level directory, so we don't need to pre-walk to find anything ...
tw.setRecursive(false);
while (tw.next()) {
String childName = tw.getNameString();
String childId = spec.childId(childName);
writer.addChild(childId, childName);
}
} else {
// We need to first find our path *before* we can walk the children ...
PathFilter filter = PathFilter.create(path);
tw.setFilter(filter);
while (tw.next()) {
if (filter.isDone(tw)) {
break;
} else if (tw.isSubtree()) {
tw.enterSubtree();
}
}
// Now that the TreeWalk is the in right location given by the 'path', we can get the
if (tw.isSubtree()) {
// The object at the 'path' is a directory, so go into it ...
tw.enterSubtree();
// Find the commit in which this folder was last modified ...
// This may not be terribly efficient, but it seems to work faster on subsequent runs ...
RevCommit folderCommit = git.log().addPath(path).call().iterator().next();
// Add folder-related properties ...
String committer = folderCommit.getCommitterIdent().getName();
String author = folderCommit.getAuthorIdent().getName();
DateTime committed = values.dateFrom(folderCommit.getCommitTime());
writer.setPrimaryType(GitLexicon.FOLDER);
writer.addProperty(JcrLexicon.CREATED, committed);
writer.addProperty(JcrLexicon.CREATED_BY, committer);
writer.addProperty(GitLexicon.OBJECT_ID, folderCommit.getId().name());
writer.addProperty(GitLexicon.AUTHOR, author);
writer.addProperty(GitLexicon.COMMITTER, committer);
writer.addProperty(GitLexicon.COMMITTED, committed);
writer.addProperty(GitLexicon.TITLE, folderCommit.getShortMessage());
// And now walk the contents of the directory ...
while (tw.next()) {
String childName = tw.getNameString();
String childId = spec.childId(childName);
writer.addChild(childId, childName);
}
} else {
// The path specifies a file (or a content node) ...
// Find the commit in which this folder was last modified ...
// This may not be terribly efficient, but it seems to work faster on subsequent runs ...
RevCommit fileCommit = git.log().addPath(path).call().iterator().next();
// Add file-related properties ...
String committer = fileCommit.getCommitterIdent().getName();
String author = fileCommit.getAuthorIdent().getName();
DateTime committed = values.dateFrom(fileCommit.getCommitTime());
if (isContentNode) {
writer.setPrimaryType(GitLexicon.RESOURCE);
writer.addProperty(JcrLexicon.LAST_MODIFIED, committed);
writer.addProperty(JcrLexicon.LAST_MODIFIED_BY, committer);
writer.addProperty(GitLexicon.OBJECT_ID, fileCommit.getId().name());
writer.addProperty(GitLexicon.AUTHOR, author);
writer.addProperty(GitLexicon.COMMITTER, committer);
writer.addProperty(GitLexicon.COMMITTED, committed);
writer.addProperty(GitLexicon.TITLE, fileCommit.getShortMessage());
// Create the BinaryValue ...
ObjectId fileObjectId = tw.getObjectId(0);
ObjectLoader fileLoader = repository.open(fileObjectId);
BinaryKey key = new BinaryKey(fileObjectId.getName());
BinaryValue value = values.binaryFor(key, fileLoader.getSize());
if (value == null) {
// It wasn't found in the binary store ...
if (fileLoader.isLarge()) {
// Too large to hold in memory, so use the binary store (which reads the file
// immediately) ...
value = values.binaryFrom(fileLoader.openStream());
} else {
// This is small enough to fit into a byte[], but it still may be pretty big ...
value =
new GitBinaryValue(
fileObjectId,
fileLoader,
connector.getSourceName(),
name,
connector.getMimeTypeDetector());
}
}
writer.addProperty(JcrLexicon.DATA, value);
if (connector.includeMimeType()) {
try {
String filename =
spec.parameter(spec.parameterCount() - 1); // the last is 'jcr:content'
String mimeType = value.getMimeType(filename);
if (mimeType != null) writer.addProperty(JcrLexicon.MIMETYPE, mimeType);
} catch (RepositoryException e) {
// do nothing
} catch (IOException e) {
// do nothing
}
}
} else {
writer.setPrimaryType(GitLexicon.FILE);
writer.addProperty(JcrLexicon.CREATED, committed);
writer.addProperty(JcrLexicon.CREATED_BY, committer);
writer.addProperty(GitLexicon.OBJECT_ID, fileCommit.getId().name());
writer.addProperty(GitLexicon.AUTHOR, author);
writer.addProperty(GitLexicon.COMMITTER, committer);
writer.addProperty(GitLexicon.COMMITTED, committed);
writer.addProperty(GitLexicon.TITLE, fileCommit.getShortMessage());
// Add the "jcr:content" child node ...
String childId = spec.childId(JCR_CONTENT);
writer.addChild(childId, JCR_CONTENT);
}
}
}
}
