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();
}
private DirCache createTemporaryIndex(ObjectId headId, DirCache index, RevWalk rw)
throws IOException {
ObjectInserter inserter = null;
// get DirCacheBuilder for existing index
DirCacheBuilder existingBuilder = index.builder();
// get DirCacheBuilder for newly created in-core index to build a
// temporary index for this commit
DirCache inCoreIndex = DirCache.newInCore();
DirCacheBuilder tempBuilder = inCoreIndex.builder();
onlyProcessed = new boolean[only.size()];
boolean emptyCommit = true;
try (TreeWalk treeWalk = new TreeWalk(repo)) {
treeWalk.setOperationType(OperationType.CHECKIN_OP);
int dcIdx = treeWalk.addTree(new DirCacheBuildIterator(existingBuilder));
FileTreeIterator fti = new FileTreeIterator(repo);
fti.setDirCacheIterator(treeWalk, 0);
int fIdx = treeWalk.addTree(fti);
int hIdx = -1;
if (headId != null) hIdx = treeWalk.addTree(rw.parseTree(headId));
treeWalk.setRecursive(true);
String lastAddedFile = null;
while (treeWalk.next()) {
String path = treeWalk.getPathString();
// check if current entry's path matches a specified path
int pos = lookupOnly(path);
CanonicalTreeParser hTree = null;
if (hIdx != -1) hTree = treeWalk.getTree(hIdx, CanonicalTreeParser.class);
DirCacheIterator dcTree = treeWalk.getTree(dcIdx, DirCacheIterator.class);
if (pos >= 0) {
// include entry in commit
FileTreeIterator fTree = treeWalk.getTree(fIdx, FileTreeIterator.class);
// check if entry refers to a tracked file
boolean tracked = dcTree != null || hTree != null;
if (!tracked) continue;
// for an unmerged path, DirCacheBuildIterator will yield 3
// entries, we only want to add one
if (path.equals(lastAddedFile)) continue;
lastAddedFile = path;
if (fTree != null) {
// create a new DirCacheEntry with data retrieved from
// disk
final DirCacheEntry dcEntry = new DirCacheEntry(path);
long entryLength = fTree.getEntryLength();
dcEntry.setLength(entryLength);
dcEntry.setLastModified(fTree.getEntryLastModified());
dcEntry.setFileMode(fTree.getIndexFileMode(dcTree));
boolean objectExists =
(dcTree != null && fTree.idEqual(dcTree))
|| (hTree != null && fTree.idEqual(hTree));
if (objectExists) {
dcEntry.setObjectId(fTree.getEntryObjectId());
} else {
if (FileMode.GITLINK.equals(dcEntry.getFileMode()))
dcEntry.setObjectId(fTree.getEntryObjectId());
else {
// insert object
if (inserter == null) inserter = repo.newObjectInserter();
long contentLength = fTree.getEntryContentLength();
InputStream inputStream = fTree.openEntryStream();
try {
dcEntry.setObjectId(
inserter.insert(Constants.OBJ_BLOB, contentLength, inputStream));
} finally {
inputStream.close();
}
}
}
// add to existing index
existingBuilder.add(dcEntry);
// add to temporary in-core index
tempBuilder.add(dcEntry);
if (emptyCommit
&& (hTree == null
|| !hTree.idEqual(fTree)
|| hTree.getEntryRawMode() != fTree.getEntryRawMode()))
// this is a change
emptyCommit = false;
} else {
// if no file exists on disk, neither add it to
// index nor to temporary in-core index
if (emptyCommit && hTree != null)
// this is a change
emptyCommit = false;
}
// keep track of processed path
onlyProcessed[pos] = true;
} else {
// add entries from HEAD for all other paths
if (hTree != null) {
// create a new DirCacheEntry with data retrieved from
// HEAD
final DirCacheEntry dcEntry = new DirCacheEntry(path);
dcEntry.setObjectId(hTree.getEntryObjectId());
dcEntry.setFileMode(hTree.getEntryFileMode());
// add to temporary in-core index
tempBuilder.add(dcEntry);
}
// preserve existing entry in index
if (dcTree != null) existingBuilder.add(dcTree.getDirCacheEntry());
}
}
}
// there must be no unprocessed paths left at this point; otherwise an
// untracked or unknown path has been specified
for (int i = 0; i < onlyProcessed.length; i++)
if (!onlyProcessed[i])
throw new JGitInternalException(
MessageFormat.format(JGitText.get().entryNotFoundByPath, only.get(i)));
// there must be at least one change
if (emptyCommit) throw new JGitInternalException(JGitText.get().emptyCommit);
// update index
existingBuilder.commit();
// finish temporary in-core index used for this commit
tempBuilder.finish();
return inCoreIndex;
}
