/// <exception cref="System.IO.IOException"></exception>
private void ResetIndex(RevCommit commit)
{
DirCache dc = null;
try
{
dc = repo.LockDirCache();
dc.Clear();
DirCacheBuilder dcb = dc.Builder();
dcb.AddTree(new byte[0], 0, repo.NewObjectReader(), commit.Tree);
dcb.Commit();
}
catch (IOException e)
{
throw;
}
finally
{
if (dc != null)
{
dc.Unlock();
}
}
}
/// <exception cref="System.IO.IOException"></exception>
protected internal override bool MergeImpl()
{
tw.AddTree(MergeBase());
tw.AddTree(sourceTrees[0]);
tw.AddTree(sourceTrees[1]);
bool hasConflict = false;
builder = cache.Builder();
while (tw.Next())
{
int modeO = tw.GetRawMode(T_OURS);
int modeT = tw.GetRawMode(T_THEIRS);
if (modeO == modeT && tw.IdEqual(T_OURS, T_THEIRS))
{
Add(T_OURS, DirCacheEntry.STAGE_0);
continue;
}
int modeB = tw.GetRawMode(T_BASE);
if (modeB == modeO && tw.IdEqual(T_BASE, T_OURS))
{
Add(T_THEIRS, DirCacheEntry.STAGE_0);
}
else
{
if (modeB == modeT && tw.IdEqual(T_BASE, T_THEIRS))
{
Add(T_OURS, DirCacheEntry.STAGE_0);
}
else
{
if (NonTree(modeB))
{
Add(T_BASE, DirCacheEntry.STAGE_1);
hasConflict = true;
}
if (NonTree(modeO))
{
Add(T_OURS, DirCacheEntry.STAGE_2);
hasConflict = true;
}
if (NonTree(modeT))
{
Add(T_THEIRS, DirCacheEntry.STAGE_3);
hasConflict = true;
}
if (tw.IsSubtree)
{
tw.EnterSubtree();
}
}
}
}
builder.Finish();
builder = null;
if (hasConflict)
{
return(false);
}
try
{
ObjectInserter odi = GetObjectInserter();
resultTree = cache.WriteTree(odi);
odi.Flush();
return(true);
}
catch (UnmergedPathException)
{
resultTree = null;
return(false);
}
}
/// <exception cref="System.IO.IOException"></exception>
private DirCache CreateTemporaryIndex(ObjectId headId, DirCache index)
{
ObjectInserter inserter = null;
// get DirCacheEditor to modify the index if required
DirCacheEditor dcEditor = index.Editor();
// get DirCacheBuilder for newly created in-core index to build a
// temporary index for this commit
DirCache inCoreIndex = DirCache.NewInCore();
DirCacheBuilder dcBuilder = inCoreIndex.Builder();
onlyProcessed = new bool[only.Count];
bool emptyCommit = true;
TreeWalk treeWalk = new TreeWalk(repo);
int dcIdx = treeWalk.AddTree(new DirCacheIterator(index));
int fIdx = treeWalk.AddTree(new FileTreeIterator(repo));
int hIdx = -1;
if (headId != null)
{
hIdx = treeWalk.AddTree(new RevWalk(repo).ParseTree(headId));
}
treeWalk.Recursive = true;
while (treeWalk.Next())
{
string path = treeWalk.PathString;
// check if current entry's path matches a specified path
int pos = LookupOnly(path);
CanonicalTreeParser hTree = null;
if (hIdx != -1)
{
hTree = treeWalk.GetTree <CanonicalTreeParser>(hIdx);
}
if (pos >= 0)
{
// include entry in commit
DirCacheIterator dcTree = treeWalk.GetTree <DirCacheIterator>(dcIdx);
FileTreeIterator fTree = treeWalk.GetTree <FileTreeIterator>(fIdx);
// check if entry refers to a tracked file
bool tracked = dcTree != null || hTree != null;
if (!tracked)
{
break;
}
if (fTree != null)
{
// create a new DirCacheEntry with data retrieved from disk
DirCacheEntry dcEntry = new DirCacheEntry(path);
long entryLength = fTree.GetEntryLength();
dcEntry.SetLength(entryLength);
dcEntry.LastModified = fTree.GetEntryLastModified();
dcEntry.FileMode = fTree.GetIndexFileMode(dcTree);
bool objectExists = (dcTree != null && fTree.IdEqual(dcTree)) || (hTree != null &&
fTree.IdEqual(hTree));
if (objectExists)
{
dcEntry.SetObjectId(fTree.EntryObjectId);
}
else
{
if (FileMode.GITLINK.Equals(dcEntry.FileMode))
{
dcEntry.SetObjectId(fTree.EntryObjectId);
}
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();
}
}
}
// update index
dcEditor.Add(new _PathEdit_375(dcEntry, path));
// add to temporary in-core index
dcBuilder.Add(dcEntry);
if (emptyCommit && (hTree == null || !hTree.IdEqual(fTree) || hTree.EntryRawMode
!= fTree.EntryRawMode))
{
// this is a change
emptyCommit = false;
}
}
else
{
// if no file exists on disk, remove entry from index and
// don't add it to temporary in-core index
dcEditor.Add(new DirCacheEditor.DeletePath(path));
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
DirCacheEntry dcEntry = new DirCacheEntry(path);
dcEntry.SetObjectId(hTree.EntryObjectId);
dcEntry.FileMode = hTree.EntryFileMode;
// add to temporary in-core index
dcBuilder.Add(dcEntry);
}
}
}
// 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[i]));
}
}
// there must be at least one change
if (emptyCommit)
{
throw new JGitInternalException(JGitText.Get().emptyCommit);
}
// update index
dcEditor.Commit();
// finish temporary in-core index used for this commit
dcBuilder.Finish();
return(inCoreIndex);
}
/// <exception cref="System.IO.IOException"></exception>
protected internal override bool MergeImpl()
{
bool implicitDirCache = false;
if (dircache == null)
{
dircache = GetRepository().LockDirCache();
implicitDirCache = true;
}
try
{
builder = dircache.Builder();
DirCacheBuildIterator buildIt = new DirCacheBuildIterator(builder);
tw = new NameConflictTreeWalk(db);
tw.AddTree(MergeBase());
tw.AddTree(sourceTrees[0]);
tw.AddTree(sourceTrees[1]);
tw.AddTree(buildIt);
if (workingTreeIterator != null)
{
tw.AddTree(workingTreeIterator);
}
while (tw.Next())
{
if (!ProcessEntry(tw.GetTree <CanonicalTreeParser>(T_BASE), tw.GetTree <CanonicalTreeParser
>(T_OURS), tw.GetTree <CanonicalTreeParser>(T_THEIRS), tw.GetTree <DirCacheBuildIterator
>(T_INDEX), (workingTreeIterator == null) ? null : tw.GetTree <WorkingTreeIterator
>(T_FILE)))
{
CleanUp();
return(false);
}
if (tw.IsSubtree && enterSubtree)
{
tw.EnterSubtree();
}
}
if (!inCore)
{
// All content-merges are successfully done. If we can now write the
// new index we are on quite safe ground. Even if the checkout of
// files coming from "theirs" fails the user can work around such
// failures by checking out the index again.
if (!builder.Commit())
{
CleanUp();
throw new IndexWriteException();
}
builder = null;
// No problem found. The only thing left to be done is to checkout
// all files from "theirs" which have been selected to go into the
// new index.
Checkout();
}
else
{
builder.Finish();
builder = null;
}
if (GetUnmergedPaths().IsEmpty())
{
resultTree = dircache.WriteTree(oi);
return(true);
}
else
{
resultTree = null;
return(false);
}
}
finally
{
if (implicitDirCache)
{
dircache.Unlock();
}
}
}
ObjectId WriteWorkingDirectoryTree(RevTree headTree, DirCache index)
{
DirCache dc = DirCache.NewInCore();
DirCacheBuilder cb = dc.Builder();
ObjectInserter oi = _repo.NewObjectInserter();
try
{
TreeWalk tw = new TreeWalk(_repo);
tw.Reset();
tw.AddTree(new FileTreeIterator(_repo));
tw.AddTree(headTree);
tw.AddTree(new DirCacheIterator(index));
while (tw.Next())
{
// Ignore untracked files
if (tw.IsSubtree)
{
tw.EnterSubtree();
}
else if (tw.GetFileMode(0) != NGit.FileMode.MISSING && (tw.GetFileMode(1) != NGit.FileMode.MISSING || tw.GetFileMode(2) != NGit.FileMode.MISSING))
{
WorkingTreeIterator f = tw.GetTree <WorkingTreeIterator>(0);
DirCacheIterator dcIter = tw.GetTree <DirCacheIterator>(2);
DirCacheEntry currentEntry = dcIter.GetDirCacheEntry();
DirCacheEntry ce = new DirCacheEntry(tw.PathString);
if (!f.IsModified(currentEntry, true))
{
ce.SetLength(currentEntry.Length);
ce.LastModified = currentEntry.LastModified;
ce.FileMode = currentEntry.FileMode;
ce.SetObjectId(currentEntry.GetObjectId());
}
else
{
long sz = f.GetEntryLength();
ce.SetLength(sz);
ce.LastModified = f.GetEntryLastModified();
ce.FileMode = f.EntryFileMode;
var data = f.OpenEntryStream();
try
{
ce.SetObjectId(oi.Insert(Constants.OBJ_BLOB, sz, data));
}
finally
{
data.Close();
}
}
cb.Add(ce);
}
}
cb.Finish();
return(dc.WriteTree(oi));
}
finally
{
oi.Release();
}
}
public virtual void TestFindObjects()
{
DirCache tree0 = DirCache.NewInCore();
DirCacheBuilder b0 = tree0.Builder();
ObjectReader or = db.NewObjectReader();
ObjectInserter oi = db.NewObjectInserter();
DirCacheEntry aDotB = MakeEntry("a.b", EXECUTABLE_FILE);
b0.Add(aDotB);
DirCacheEntry aSlashB = MakeEntry("a/b", REGULAR_FILE);
b0.Add(aSlashB);
DirCacheEntry aSlashCSlashD = MakeEntry("a/c/d", REGULAR_FILE);
b0.Add(aSlashCSlashD);
DirCacheEntry aZeroB = MakeEntry("a0b", SYMLINK);
b0.Add(aZeroB);
b0.Finish();
NUnit.Framework.Assert.AreEqual(4, tree0.GetEntryCount());
ObjectId tree = tree0.WriteTree(oi);
// Find the directories that were implicitly created above.
TreeWalk tw = new TreeWalk(or);
tw.AddTree(tree);
ObjectId a = null;
ObjectId aSlashC = null;
while (tw.Next())
{
if (tw.PathString.Equals("a"))
{
a = tw.GetObjectId(0);
tw.EnterSubtree();
while (tw.Next())
{
if (tw.PathString.Equals("a/c"))
{
aSlashC = tw.GetObjectId(0);
break;
}
}
break;
}
}
NUnit.Framework.Assert.AreEqual(a, TreeWalk.ForPath(or, "a", tree).GetObjectId(0)
);
NUnit.Framework.Assert.AreEqual(a, TreeWalk.ForPath(or, "a/", tree).GetObjectId(0
));
NUnit.Framework.Assert.AreEqual(null, TreeWalk.ForPath(or, "/a", tree));
NUnit.Framework.Assert.AreEqual(null, TreeWalk.ForPath(or, "/a/", tree));
NUnit.Framework.Assert.AreEqual(aDotB.GetObjectId(), TreeWalk.ForPath(or, "a.b",
tree).GetObjectId(0));
NUnit.Framework.Assert.AreEqual(null, TreeWalk.ForPath(or, "/a.b", tree));
NUnit.Framework.Assert.AreEqual(null, TreeWalk.ForPath(or, "/a.b/", tree));
NUnit.Framework.Assert.AreEqual(aDotB.GetObjectId(), TreeWalk.ForPath(or, "a.b/",
tree).GetObjectId(0));
NUnit.Framework.Assert.AreEqual(aZeroB.GetObjectId(), TreeWalk.ForPath(or, "a0b",
tree).GetObjectId(0));
NUnit.Framework.Assert.AreEqual(aSlashB.GetObjectId(), TreeWalk.ForPath(or, "a/b"
, tree).GetObjectId(0));
NUnit.Framework.Assert.AreEqual(aSlashB.GetObjectId(), TreeWalk.ForPath(or, "b",
a).GetObjectId(0));
NUnit.Framework.Assert.AreEqual(aSlashC, TreeWalk.ForPath(or, "a/c", tree).GetObjectId
(0));
NUnit.Framework.Assert.AreEqual(aSlashC, TreeWalk.ForPath(or, "c", a).GetObjectId
(0));
NUnit.Framework.Assert.AreEqual(aSlashCSlashD.GetObjectId(), TreeWalk.ForPath(or,
"a/c/d", tree).GetObjectId(0));
NUnit.Framework.Assert.AreEqual(aSlashCSlashD.GetObjectId(), TreeWalk.ForPath(or,
"c/d", a).GetObjectId(0));
or.Release();
oi.Release();
}