/// <exception cref="System.Exception"></exception>
private DirCacheEntry MakeEntry(string path, FileMode mode)
{
DirCacheEntry ent = new DirCacheEntry(path);
ent.FileMode = mode;
ent.SetObjectId(new ObjectInserter.Formatter().IdFor(Constants.OBJ_BLOB, Constants
.Encode(path)));
return(ent);
}
/// <summary>
/// adds a entry to the index builder which is a copy of the specified
/// DirCacheEntry
/// </summary>
/// <param name="e">the entry which should be copied</param>
/// <returns>the entry which was added to the index</returns>
private DirCacheEntry Keep(DirCacheEntry e)
{
DirCacheEntry newEntry = new DirCacheEntry(e.PathString, e.Stage);
newEntry.FileMode = e.FileMode;
newEntry.SetObjectId(e.GetObjectId());
newEntry.LastModified = e.LastModified;
newEntry.SetLength(e.Length);
builder.Add(newEntry);
return(newEntry);
}
public override void Apply(DirCacheEntry ent)
{
ent.SetObjectId(blobId);
ent.FileMode = mode;
try
{
DirCacheCheckout.CheckoutEntry(this._enclosing.repo, new FilePath(workTree, ent.PathString
), ent, r);
}
catch (IOException e)
{
throw new JGitInternalException(MessageFormat.Format(JGitText.Get().checkoutConflictWithFile
, ent.PathString), e);
}
}
/// <exception cref="System.IO.IOException"></exception>
private void ApplyChanges(TreeWalk treeWalk, DirCache cache, DirCacheEditor editor
)
{
FilePath workingTree = repo.WorkTree;
while (treeWalk.Next())
{
string path = treeWalk.PathString;
FilePath file = new FilePath(workingTree, path);
// State of the stashed HEAD, index, and working directory
AbstractTreeIterator stashHeadIter = treeWalk.GetTree <AbstractTreeIterator>(0);
AbstractTreeIterator stashIndexIter = treeWalk.GetTree <AbstractTreeIterator>(1);
AbstractTreeIterator stashWorkingIter = treeWalk.GetTree <AbstractTreeIterator>(2);
if (stashWorkingIter != null && stashIndexIter != null)
{
// Checkout index change
DirCacheEntry entry = cache.GetEntry(path);
if (entry == null)
{
entry = new DirCacheEntry(treeWalk.RawPath);
}
entry.FileMode = stashIndexIter.EntryFileMode;
entry.SetObjectId(stashIndexIter.EntryObjectId);
DirCacheCheckout.CheckoutEntry(repo, file, entry, treeWalk.ObjectReader);
DirCacheEntry updatedEntry = entry;
editor.Add(new _PathEdit_270(updatedEntry, path));
// Checkout working directory change
if (!stashWorkingIter.IdEqual(stashIndexIter))
{
entry = new DirCacheEntry(treeWalk.RawPath);
entry.SetObjectId(stashWorkingIter.EntryObjectId);
DirCacheCheckout.CheckoutEntry(repo, file, entry, treeWalk.ObjectReader);
}
}
else
{
if (stashIndexIter == null || (stashHeadIter != null && !stashIndexIter.IdEqual(stashHeadIter
)))
{
editor.Add(new DirCacheEditor.DeletePath(path));
}
FileUtils.Delete(file, FileUtils.RETRY | FileUtils.SKIP_MISSING);
}
}
}
private void ResetIndexForPaths(RevCommit commit)
{
DirCache dc = null;
try
{
dc = repo.LockDirCache();
DirCacheBuilder builder = dc.Builder();
TreeWalk tw = new TreeWalk(repo);
tw.AddTree(new DirCacheBuildIterator(builder));
tw.AddTree(commit.Tree);
tw.Filter = PathFilterGroup.CreateFromStrings(filepaths);
tw.Recursive = true;
while (tw.Next())
{
CanonicalTreeParser tree = tw.GetTree <CanonicalTreeParser>(1);
// only keep file in index if it's in the commit
if (tree != null)
{
// revert index to commit
DirCacheEntry entry = new DirCacheEntry(tw.RawPath);
entry.FileMode = tree.EntryFileMode;
entry.SetObjectId(tree.EntryObjectId);
builder.Add(entry);
}
}
builder.Commit();
}
catch (IOException e)
{
throw new RuntimeException(e);
}
finally
{
if (dc != null)
{
dc.Unlock();
}
}
}
public override void Apply(DirCacheEntry ent)
{
if (checkoutIndex && ent.Stage > DirCacheEntry.STAGE_0)
{
UnmergedPathException e = new UnmergedPathException(ent);
throw new JGitInternalException(e.Message, e);
}
ent.SetObjectId(blobId);
ent.FileMode = mode;
FilePath file = new FilePath(workTree, ent.PathString);
FilePath parentDir = file.GetParentFile();
try
{
FileUtils.Mkdirs(parentDir, true);
DirCacheCheckout.CheckoutEntry(this._enclosing.repo, file, ent, r);
}
catch (IOException e)
{
throw new JGitInternalException(MessageFormat.Format(JGitText.Get().checkoutConflictWithFile
, ent.PathString), e);
}
}
/// <summary>Processes one path and tries to merge.</summary>
/// <remarks>
/// Processes one path and tries to merge. This method will do all do all
/// trivial (not content) merges and will also detect if a merge will fail.
/// The merge will fail when one of the following is true
/// <ul>
/// <li>the index entry does not match the entry in ours. When merging one
/// branch into the current HEAD, ours will point to HEAD and theirs will
/// point to the other branch. It is assumed that the index matches the HEAD
/// because it will only not match HEAD if it was populated before the merge
/// operation. But the merge commit should not accidentally contain
/// modifications done before the merge. Check the <a href=
/// "http://www.kernel.org/pub/software/scm/git/docs/git-read-tree.html#_3_way_merge"
/// >git read-tree</a> documentation for further explanations.</li>
/// <li>A conflict was detected and the working-tree file is dirty. When a
/// conflict is detected the content-merge algorithm will try to write a
/// merged version into the working-tree. If the file is dirty we would
/// override unsaved data.</li>
/// </remarks>
/// <param name="base">the common base for ours and theirs</param>
/// <param name="ours">
/// the ours side of the merge. When merging a branch into the
/// HEAD ours will point to HEAD
/// </param>
/// <param name="theirs">
/// the theirs side of the merge. When merging a branch into the
/// current HEAD theirs will point to the branch which is merged
/// into HEAD.
/// </param>
/// <param name="index">the index entry</param>
/// <param name="work">the file in the working tree</param>
/// <returns>
/// <code>false</code> if the merge will fail because the index entry
/// didn't match ours or the working-dir file was dirty and a
/// conflict occurred
/// </returns>
/// <exception cref="NGit.Errors.MissingObjectException">NGit.Errors.MissingObjectException
/// </exception>
/// <exception cref="NGit.Errors.IncorrectObjectTypeException">NGit.Errors.IncorrectObjectTypeException
/// </exception>
/// <exception cref="NGit.Errors.CorruptObjectException">NGit.Errors.CorruptObjectException
/// </exception>
/// <exception cref="System.IO.IOException">System.IO.IOException</exception>
private bool ProcessEntry(CanonicalTreeParser @base, CanonicalTreeParser ours, CanonicalTreeParser
theirs, DirCacheBuildIterator index, WorkingTreeIterator work)
{
enterSubtree = true;
int modeO = tw.GetRawMode(T_OURS);
int modeT = tw.GetRawMode(T_THEIRS);
int modeB = tw.GetRawMode(T_BASE);
if (modeO == 0 && modeT == 0 && modeB == 0)
{
// File is either untracked or new, staged but uncommitted
return(true);
}
if (IsIndexDirty())
{
return(false);
}
DirCacheEntry ourDce = null;
if (index == null || index.GetDirCacheEntry() == null)
{
// create a fake DCE, but only if ours is valid. ours is kept only
// in case it is valid, so a null ourDce is ok in all other cases.
if (NonTree(modeO))
{
ourDce = new DirCacheEntry(tw.RawPath);
ourDce.SetObjectId(tw.GetObjectId(T_OURS));
ourDce.FileMode = tw.GetFileMode(T_OURS);
}
}
else
{
ourDce = index.GetDirCacheEntry();
}
if (NonTree(modeO) && NonTree(modeT) && tw.IdEqual(T_OURS, T_THEIRS))
{
// OURS and THEIRS have equal content. Check the file mode
if (modeO == modeT)
{
// content and mode of OURS and THEIRS are equal: it doesn't
// matter which one we choose. OURS is chosen. Since the index
// is clean (the index matches already OURS) we can keep the existing one
Keep(ourDce);
// no checkout needed!
return(true);
}
else
{
// same content but different mode on OURS and THEIRS.
// Try to merge the mode and report an error if this is
// not possible.
int newMode = MergeFileModes(modeB, modeO, modeT);
if (newMode != FileMode.MISSING.GetBits())
{
if (newMode == modeO)
{
// ours version is preferred
Keep(ourDce);
}
else
{
// the preferred version THEIRS has a different mode
// than ours. Check it out!
if (IsWorktreeDirty(work))
{
return(false);
}
// we know about length and lastMod only after we have written the new content.
// This will happen later. Set these values to 0 for know.
DirCacheEntry e = Add(tw.RawPath, theirs, DirCacheEntry.STAGE_0, 0, 0);
toBeCheckedOut.Put(tw.PathString, e);
}
return(true);
}
else
{
// FileModes are not mergeable. We found a conflict on modes.
// For conflicting entries we don't know lastModified and length.
Add(tw.RawPath, @base, DirCacheEntry.STAGE_1, 0, 0);
Add(tw.RawPath, ours, DirCacheEntry.STAGE_2, 0, 0);
Add(tw.RawPath, theirs, DirCacheEntry.STAGE_3, 0, 0);
unmergedPaths.AddItem(tw.PathString);
mergeResults.Put(tw.PathString, new MergeResult <RawText>(Sharpen.Collections.EmptyList
<RawText>()).Upcast());
}
return(true);
}
}
if (NonTree(modeO) && modeB == modeT && tw.IdEqual(T_BASE, T_THEIRS))
{
// THEIRS was not changed compared to BASE. All changes must be in
// OURS. OURS is chosen. We can keep the existing entry.
Keep(ourDce);
// no checkout needed!
return(true);
}
if (modeB == modeO && tw.IdEqual(T_BASE, T_OURS))
{
// OURS was not changed compared to BASE. All changes must be in
// THEIRS. THEIRS is chosen.
// Check worktree before checking out THEIRS
if (IsWorktreeDirty(work))
{
return(false);
}
if (NonTree(modeT))
{
// we know about length and lastMod only after we have written
// the new content.
// This will happen later. Set these values to 0 for know.
DirCacheEntry e = Add(tw.RawPath, theirs, DirCacheEntry.STAGE_0, 0, 0);
if (e != null)
{
toBeCheckedOut.Put(tw.PathString, e);
}
return(true);
}
else
{
if (modeT == 0 && modeB != 0)
{
// we want THEIRS ... but THEIRS contains the deletion of the
// file
toBeDeleted.AddItem(tw.PathString);
return(true);
}
}
}
if (tw.IsSubtree)
{
// file/folder conflicts: here I want to detect only file/folder
// conflict between ours and theirs. file/folder conflicts between
// base/index/workingTree and something else are not relevant or
// detected later
if (NonTree(modeO) && !NonTree(modeT))
{
if (NonTree(modeB))
{
Add(tw.RawPath, @base, DirCacheEntry.STAGE_1, 0, 0);
}
Add(tw.RawPath, ours, DirCacheEntry.STAGE_2, 0, 0);
unmergedPaths.AddItem(tw.PathString);
enterSubtree = false;
return(true);
}
if (NonTree(modeT) && !NonTree(modeO))
{
if (NonTree(modeB))
{
Add(tw.RawPath, @base, DirCacheEntry.STAGE_1, 0, 0);
}
Add(tw.RawPath, theirs, DirCacheEntry.STAGE_3, 0, 0);
unmergedPaths.AddItem(tw.PathString);
enterSubtree = false;
return(true);
}
// ours and theirs are both folders or both files (and treewalk
// tells us we are in a subtree because of index or working-dir).
// If they are both folders no content-merge is required - we can
// return here.
if (!NonTree(modeO))
{
return(true);
}
}
// ours and theirs are both files, just fall out of the if block
// and do the content merge
if (NonTree(modeO) && NonTree(modeT))
{
// Check worktree before modifying files
if (IsWorktreeDirty(work))
{
return(false);
}
// Don't attempt to resolve submodule link conflicts
if (IsGitLink(modeO) || IsGitLink(modeT))
{
Add(tw.RawPath, @base, DirCacheEntry.STAGE_1, 0, 0);
Add(tw.RawPath, ours, DirCacheEntry.STAGE_2, 0, 0);
Add(tw.RawPath, theirs, DirCacheEntry.STAGE_3, 0, 0);
unmergedPaths.AddItem(tw.PathString);
return(true);
}
MergeResult <RawText> result = ContentMerge(@base, ours, theirs);
FilePath of = WriteMergedFile(result);
UpdateIndex(@base, ours, theirs, result, of);
if (result.ContainsConflicts())
{
unmergedPaths.AddItem(tw.PathString);
}
modifiedFiles.AddItem(tw.PathString);
}
else
{
if (modeO != modeT)
{
// OURS or THEIRS has been deleted
if (((modeO != 0 && !tw.IdEqual(T_BASE, T_OURS)) || (modeT != 0 && !tw.IdEqual(T_BASE
, T_THEIRS))))
{
Add(tw.RawPath, @base, DirCacheEntry.STAGE_1, 0, 0);
Add(tw.RawPath, ours, DirCacheEntry.STAGE_2, 0, 0);
DirCacheEntry e = Add(tw.RawPath, theirs, DirCacheEntry.STAGE_3, 0, 0);
// OURS was deleted checkout THEIRS
if (modeO == 0)
{
// Check worktree before checking out THEIRS
if (IsWorktreeDirty(work))
{
return(false);
}
if (NonTree(modeT))
{
if (e != null)
{
toBeCheckedOut.Put(tw.PathString, e);
}
}
}
unmergedPaths.AddItem(tw.PathString);
// generate a MergeResult for the deleted file
mergeResults.Put(tw.PathString, ContentMerge(@base, ours, theirs).Upcast());
}
}
}
return(true);
}
public override void Apply(DirCacheEntry ent)
{
ent.FileMode = FileMode.REGULAR_FILE;
ent.SetLength(f.Length());
ent.SetObjectId(id);
}
public override void Apply(DirCacheEntry ent)
{
ent.FileMode = FileMode.REGULAR_FILE;
ent.SetObjectId(id);
ent.IsUpdateNeeded = false;
}
public override void Apply(DirCacheEntry ent)
{
ent.SetObjectId(blobId);
}
