async private Task onLaunchDiffToolAsync()
{
GitClient client = getGitClient(_workflow.State.HostName, _workflow.State.Project.Path_With_Namespace);
if (client != null)
{
enableControlsOnGitAsyncOperation(false);
try
{
// Using local checker because it does not make a GitLab request and it is quite enough here because
// user may select only those commits that already loaded and cached and have timestamps less
// than latest merge request version
await _gitClientUpdater.UpdateAsync(client,
_updateManager.GetLocalProjectChecker(_workflow.State.MergeRequest.Id), updateGitStatusText);
}
catch (Exception ex)
{
if (ex is CancelledByUserException)
{
// User declined to create a repository
MessageBox.Show("Cannot launch a diff tool without up-to-date git repository", "Warning",
MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else if (!(ex is RepeatOperationException))
{
Debug.Assert(ex is ArgumentException || ex is GitOperationException);
ExceptionHandlers.Handle(ex, "Cannot initialize/update git repository");
MessageBox.Show("Cannot initialize git repository",
"Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
return;
}
finally
{
enableControlsOnGitAsyncOperation(true);
}
}
else
{
MessageBox.Show("Cannot launch a diff tool without up-to-date git repository", "Warning",
MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (comboBoxLeftCommit.SelectedItem == null || comboBoxRightCommit.SelectedItem == null)
{
// State changed during async git client update
return;
}
string leftSHA = getGitTag(true /* left */);
string rightSHA = getGitTag(false /* right */);
labelWorkflowStatus.Text = "Launching diff tool...";
int pid;
try
{
pid = client.DiffTool(mrHelper.DiffTool.DiffToolIntegration.GitDiffToolName,
leftSHA, rightSHA);
}
catch (GitOperationException ex)
{
string message = "Could not launch diff tool";
ExceptionHandlers.Handle(ex, message);
MessageBox.Show(message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
labelWorkflowStatus.Text = message;
return;
}
labelWorkflowStatus.Text = "Diff tool launched";
Trace.TraceInformation(String.Format("[MainForm] Launched DiffTool for SHA {0} vs SHA {1} (at {2}). PID {3}",
leftSHA, rightSHA, client.Path, pid.ToString()));
saveInterprocessSnapshot(pid, leftSHA, rightSHA);
}
