// TODO not implemented yet
// TODO not implemented yet
/// <summary>
/// Executes the
/// <code>Reset</code>
/// command. Each instance of this class should
/// only be used for one invocation of the command. Don't call this method
/// twice on an instance.
/// </summary>
/// <returns>the Ref after reset</returns>
/// <exception cref="System.IO.IOException"></exception>
public override Ref Call()
{
CheckCallable();
Ref r;
RevCommit commit;
try
{
RepositoryState state = repo.GetRepositoryState();
bool merging = state.Equals(RepositoryState.MERGING) || state.Equals(RepositoryState
.MERGING_RESOLVED);
bool cherryPicking = state.Equals(RepositoryState.CHERRY_PICKING) || state.Equals
(RepositoryState.CHERRY_PICKING_RESOLVED);
// resolve the ref to a commit
ObjectId commitId;
try
{
commitId = repo.Resolve(@ref);
}
catch (IOException e)
{
throw new JGitInternalException(MessageFormat.Format(JGitText.Get().cannotRead, @ref
), e);
}
RevWalk rw = new RevWalk(repo);
try
{
commit = rw.ParseCommit(commitId);
}
catch (IOException e)
{
throw new JGitInternalException(MessageFormat.Format(JGitText.Get().cannotReadCommit
, commitId.ToString()), e);
}
finally
{
rw.Release();
}
if (!filepaths.IsEmpty())
{
// reset [commit] -- paths
ResetIndexForPaths(commit);
SetCallable(false);
return(repo.GetRef(Constants.HEAD));
}
// write the ref
RefUpdate ru = repo.UpdateRef(Constants.HEAD);
ru.SetNewObjectId(commitId);
string refName = Repository.ShortenRefName(@ref);
string message = refName + ": updating " + Constants.HEAD;
//$NON-NLS-1$
ru.SetRefLogMessage(message, false);
if (ru.ForceUpdate() == RefUpdate.Result.LOCK_FAILURE)
{
throw new JGitInternalException(MessageFormat.Format(JGitText.Get().cannotLock, ru
.GetName()));
}
switch (mode)
{
case ResetCommand.ResetType.HARD:
{
CheckoutIndex(commit);
break;
}
case ResetCommand.ResetType.MIXED:
{
ResetIndex(commit);
break;
}
case ResetCommand.ResetType.SOFT:
{
// do nothing, only the ref was changed
break;
}
case ResetCommand.ResetType.KEEP:
case ResetCommand.ResetType.MERGE:
{
// TODO
// TODO
throw new NotSupportedException();
}
}
if (mode != ResetCommand.ResetType.SOFT)
{
if (merging)
{
ResetMerge();
}
else
{
if (cherryPicking)
{
ResetCherryPick();
}
}
}
SetCallable(false);
r = ru.GetRef();
}
catch (IOException e)
{
throw new JGitInternalException(JGitText.Get().exceptionCaughtDuringExecutionOfResetCommand
, e);
}
return(r);
}