/**
* 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;
}
}
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();
}
}
