/**
* Pop the next most recent object.
*
* @return next most recent object; null if traversal is over.
* @throws MissingObjectException one or or more of the next objects are not available from the
* object database, but were thought to be candidates for traversal. This usually indicates a
* broken link.
* @throws IncorrectObjectTypeException one or or more of the objects in a tree do not match the
* type indicated.
* @throws IOException a pack file or loose object could not be read.
*/
public RevObject nextObject()
throws MissingObjectException, IncorrectObjectTypeException, IOException {
if (last != null) treeWalk = last instanceof RevTree ? enter(last) : treeWalk.next();
while (!treeWalk.eof()) {
final FileMode mode = treeWalk.getEntryFileMode();
switch (mode.getObjectType()) {
case Constants.OBJ_BLOB:
{
treeWalk.getEntryObjectId(idBuffer);
final RevBlob o = lookupBlob(idBuffer);
if ((o.flags & SEEN) != 0) break;
o.flags |= SEEN;
if (shouldSkipObject(o)) break;
last = o;
return o;
}
case Constants.OBJ_TREE:
{
treeWalk.getEntryObjectId(idBuffer);
final RevTree o = lookupTree(idBuffer);
if ((o.flags & SEEN) != 0) break;
o.flags |= SEEN;
if (shouldSkipObject(o)) break;
last = o;
return o;
}
default:
if (FileMode.GITLINK.equals(mode)) break;
treeWalk.getEntryObjectId(idBuffer);
throw new CorruptObjectException(
MessageFormat.format(
JGitText.get().corruptObjectInvalidMode3,
mode,
idBuffer.name(),
treeWalk.getEntryPathString(),
currentTree.name()));
}
treeWalk = treeWalk.next();
}
last = null;
for (; ; ) {
final RevObject o = pendingObjects.next();
if (o == null) return null;
if ((o.flags & SEEN) != 0) continue;
o.flags |= SEEN;
if (shouldSkipObject(o)) continue;
if (o instanceof RevTree) {
currentTree = (RevTree) o;
treeWalk = treeWalk.resetRoot(db, currentTree, curs);
}
return o;
}
}
public void testEntryFileMode() {
for (FileMode m :
new FileMode[] {
FileMode.TREE,
FileMode.REGULAR_FILE,
FileMode.EXECUTABLE_FILE,
FileMode.GITLINK,
FileMode.SYMLINK
}) {
final FakeTreeIterator i = new FakeTreeIterator("a", m);
assertEquals(m.getBits(), i.getEntryRawMode());
assertSame(m, i.getEntryFileMode());
}
}
/**
* Lookup an entry stored in a tree, failing if not present.
*
* @param tree the tree to search.
* @param path the path to find the entry of.
* @return the parsed object entry at this path, never null.
* @throws Exception
*/
public RevObject get(final RevTree tree, final String path) throws Exception {
final TreeWalk tw = new TreeWalk(pool.getObjectReader());
tw.setFilter(PathFilterGroup.createFromStrings(Collections.singleton(path)));
tw.reset(tree);
while (tw.next()) {
if (tw.isSubtree() && !path.equals(tw.getPathString())) {
tw.enterSubtree();
continue;
}
final ObjectId entid = tw.getObjectId(0);
final FileMode entmode = tw.getFileMode(0);
return pool.lookupAny(entid, entmode.getObjectType());
}
fail("Can't find " + path + " in tree " + tree.name());
return null; // never reached.
}
FileMode parseFileMode(int ptr, final int end) {
int tmp = 0;
while (ptr < end - 1) {
tmp <<= 3;
tmp += buf[ptr++] - '0';
}
return FileMode.fromBits(tmp);
}
private void markTreeUninteresting(final RevTree tree)
throws MissingObjectException, IncorrectObjectTypeException, IOException {
if ((tree.flags & UNINTERESTING) != 0) return;
tree.flags |= UNINTERESTING;
treeWalk = treeWalk.resetRoot(db, tree, curs);
while (!treeWalk.eof()) {
final FileMode mode = treeWalk.getEntryFileMode();
final int sType = mode.getObjectType();
switch (sType) {
case Constants.OBJ_BLOB:
{
treeWalk.getEntryObjectId(idBuffer);
lookupBlob(idBuffer).flags |= UNINTERESTING;
break;
}
case Constants.OBJ_TREE:
{
treeWalk.getEntryObjectId(idBuffer);
final RevTree t = lookupTree(idBuffer);
if ((t.flags & UNINTERESTING) == 0) {
t.flags |= UNINTERESTING;
treeWalk = treeWalk.createSubtreeIterator0(db, t, curs);
continue;
}
break;
}
default:
if (FileMode.GITLINK.equals(mode)) break;
treeWalk.getEntryObjectId(idBuffer);
throw new CorruptObjectException(
MessageFormat.format(
JGitText.get().corruptObjectInvalidMode3,
mode,
idBuffer.name(),
treeWalk.getEntryPathString(),
tree));
}
treeWalk = treeWalk.next();
}
}
public FakeTreeIterator(String pathName, FileMode fileMode) {
super(prefix(pathName), new WorkingTreeOptions(AutoCRLF.FALSE));
mode = fileMode.getBits();
final int s = pathName.lastIndexOf('/');
final byte[] name = Constants.encode(pathName.substring(s + 1));
ensurePathCapacity(pathOffset + name.length, pathOffset);
System.arraycopy(name, 0, path, pathOffset, name.length);
pathLen = pathOffset + name.length;
}
private void assertEntry(FileMode type, boolean entryIgnored, String pathName)
throws IOException {
assertTrue("walk has entry", walk.next());
assertEquals(pathName, walk.getPathString());
assertEquals(type, walk.getFileMode(0));
WorkingTreeIterator itr = walk.getTree(0, WorkingTreeIterator.class);
assertNotNull("has tree", itr);
assertEquals("is ignored", entryIgnored, itr.isEntryIgnored());
if (D.equals(type)) walk.enterSubtree();
}
private void assertIteration(FileMode type, String pathName, List<Attribute> nodeAttrs)
throws IOException {
assertTrue("walk has entry", walk.next());
assertEquals(pathName, walk.getPathString());
assertEquals(type, walk.getFileMode(0));
DirCacheIterator itr = walk.getTree(0, DirCacheIterator.class);
assertNotNull("has tree", itr);
AttributesNode attributesNode = itr.getEntryAttributesNode(db.newObjectReader());
assertAttributesNode(pathName, attributesNode, nodeAttrs);
if (D.equals(type)) walk.enterSubtree();
}
/**
* Updates the index after a content merge has happened. If no conflict has occurred this includes
* persisting the merged content to the object database. In case of conflicts this method takes
* care to write the correct stages to the index.
*
* @param base
* @param ours
* @param theirs
* @param result
* @throws FileNotFoundException
* @throws IOException
*/
private void updateIndex(
CanonicalTreeParser base,
CanonicalTreeParser ours,
CanonicalTreeParser theirs,
MergeResult<RawText> result)
throws FileNotFoundException, IOException {
File mergedFile = !inCore ? writeMergedFile(result) : null;
if (result.containsConflicts()) {
// A conflict occurred, the file will contain conflict markers
// the index will be populated with the three stages and the
// workdir (if used) contains the halfway merged content.
add(tw.getRawPath(), base, DirCacheEntry.STAGE_1, 0, 0);
add(tw.getRawPath(), ours, DirCacheEntry.STAGE_2, 0, 0);
add(tw.getRawPath(), theirs, DirCacheEntry.STAGE_3, 0, 0);
mergeResults.put(tw.getPathString(), result);
return;
}
// No conflict occurred, the file will contain fully merged content.
// The index will be populated with the new merged version.
DirCacheEntry dce = new DirCacheEntry(tw.getPathString());
// Set the mode for the new content. Fall back to REGULAR_FILE if
// we can't merge modes of OURS and THEIRS.
int newMode = mergeFileModes(tw.getRawMode(0), tw.getRawMode(1), tw.getRawMode(2));
dce.setFileMode(
newMode == FileMode.MISSING.getBits() ? FileMode.REGULAR_FILE : FileMode.fromBits(newMode));
if (mergedFile != null) {
long len = mergedFile.length();
dce.setLastModified(mergedFile.lastModified());
dce.setLength((int) len);
InputStream is = new FileInputStream(mergedFile);
try {
dce.setObjectId(getObjectInserter().insert(OBJ_BLOB, len, is));
} finally {
is.close();
}
} else dce.setObjectId(insertMergeResult(result));
builder.add(dce);
}
private void formatHeader(ByteArrayOutputStream o, DiffEntry ent) throws IOException {
final ChangeType type = ent.getChangeType();
final String oldp = ent.getOldPath();
final String newp = ent.getNewPath();
final FileMode oldMode = ent.getOldMode();
final FileMode newMode = ent.getNewMode();
formatGitDiffFirstHeaderLine(o, type, oldp, newp);
switch (type) {
case ADD:
o.write(encodeASCII("new file mode ")); // $NON-NLS-1$
newMode.copyTo(o);
o.write('\n');
break;
case DELETE:
o.write(encodeASCII("deleted file mode ")); // $NON-NLS-1$
oldMode.copyTo(o);
o.write('\n');
break;
case RENAME:
o.write(
encodeASCII("similarity index " + ent.getScore() + "%")); // $NON-NLS-1$ //$NON-NLS-2$
o.write('\n');
o.write(encode("rename from " + quotePath(oldp))); // $NON-NLS-1$
o.write('\n');
o.write(encode("rename to " + quotePath(newp))); // $NON-NLS-1$
o.write('\n');
break;
case COPY:
o.write(
encodeASCII("similarity index " + ent.getScore() + "%")); // $NON-NLS-1$ //$NON-NLS-2$
o.write('\n');
o.write(encode("copy from " + quotePath(oldp))); // $NON-NLS-1$
o.write('\n');
o.write(encode("copy to " + quotePath(newp))); // $NON-NLS-1$
o.write('\n');
if (!oldMode.equals(newMode)) {
o.write(encodeASCII("new file mode ")); // $NON-NLS-1$
newMode.copyTo(o);
o.write('\n');
}
break;
case MODIFY:
if (0 < ent.getScore()) {
o.write(
encodeASCII(
"dissimilarity index " //$NON-NLS-1$
+ (100 - ent.getScore())
+ "%")); //$NON-NLS-1$
o.write('\n');
}
break;
}
if ((type == MODIFY || type == RENAME) && !oldMode.equals(newMode)) {
o.write(encodeASCII("old mode ")); // $NON-NLS-1$
oldMode.copyTo(o);
o.write('\n');
o.write(encodeASCII("new mode ")); // $NON-NLS-1$
newMode.copyTo(o);
o.write('\n');
}
if (!ent.getOldId().equals(ent.getNewId())) {
formatIndexLine(o, ent);
}
}
/**
* Obtain the {@link FileMode} for the current entry.
*
* <p>Every added tree supplies a mode, even if the tree does not contain the current entry. In
* the latter case {@link FileMode#MISSING} is returned.
*
* @param nth tree to obtain the mode from.
* @return mode for the current entry of the nth tree.
*/
public FileMode getFileMode(final int nth) {
return FileMode.fromBits(getRawMode(nth));
}
/**
* Compares whether two pairs of ObjectId and FileMode are equal.
*
* @param id1
* @param mode1
* @param id2
* @param mode2
* @return <code>true</code> if FileModes and ObjectIds are equal. <code>false</code> otherwise
*/
private boolean equalIdAndMode(ObjectId id1, FileMode mode1, ObjectId id2, FileMode mode2) {
if (!mode1.equals(mode2)) return false;
return id1 != null ? id1.equals(id2) : id2 == null;
}
@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();
}
}
