private Tree GetOrCreateWorkspaceTree()
{
// Creating a Tree object for a Workspace is relatively expensive. It requires reading all the files
// on disk. Given that we are the primary updaters of the tree we can safely cache the tree value to
// avoid the operation.
if (_cachedWorkspaceTree == null)
{
_cachedWorkspaceTree = GitUtils.CreateTreeFromWorkspace(_workspace, _workspacePath, _repository.ObjectDatabase);
}
return(_cachedWorkspaceTree);
}
/// <summary>
/// Apply the specific commit to the Workspace. This method assumes the Workspace is in a good
/// state at the time the application of the commit occurs.
/// <return>True if the operation was completed successfully (or there was simply no work to do)</return>
/// </summary>
private bool ApplyCommitToWorkspaceCore(CommitRange commitRange)
{
Debug.Assert(!HasPendingChangesBesidesLock());
var newCommit = commitRange.NewCommit;
_host.Status("Applying {0}", newCommit);
// Note: This is a suboptimal way of building the tree. The file system can be changed by
// local builds and such. Much better to build directly from the Workspace object.
var workspaceTree = GitUtils.CreateTreeFromWorkspace(_workspace, _workspacePath, _repository.ObjectDatabase);
var treeChanges = _repository.Diff.Compare <TreeChanges>(workspaceTree, newCommit.Tree, compareOptions: new LibGit2Sharp.CompareOptions()
{
Similarity = SimilarityOptions.Renames
});
if (!treeChanges.Any())
{
_host.Status("No changes to apply");
return(true);
}
if (!ApplyGitChangeToWorkspace(treeChanges))
{
return(false);
}
var ownerInfo = GetCommitOwnerInfo(commitRange.NewCommit);
var checkinMessage = CreateCheckinMessage(commitRange, ownerInfo.UserDisplayName);
if (_confirmBeforeCheckin && !ConfirmCheckin(newCommit, checkinMessage))
{
return(false);
}
try
{
_workspace.CheckIn(
_workspace.GetPendingChanges(),
author: ownerInfo.MappedTfsAuthorName,
comment: checkinMessage,
checkinNote: null,
workItemChanges: null,
policyOverride: null);
_cachedWorkspaceTree = newCommit.Tree;
}
catch (Exception ex)
{
_host.Error("Unable to complete checkin: {0}", ex.Message);
_cachedWorkspaceTree = null;
return(false);
}
_host.Status("Checkin complete for {0}", commitRange.NewCommit.Sha);
// The check in will undo the lock so re-lock now
if (_lockWorkspacePath)
{
LockWorkspacePath();
}
return(true);
}