From b4eebbde2151a191aba2d7f4e6946352385eb2e2 Mon Sep 17 00:00:00 2001
From: Joao Moreno <jomo@microsoft.com>
Date: Wed, 28 Sep 2016 12:43:23 +0200
Subject: [PATCH] disable undo last commit action when dirty

fixes #11477
---
 src/vs/workbench/parts/git/browser/gitActions.ts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/vs/workbench/parts/git/browser/gitActions.ts b/src/vs/workbench/parts/git/browser/gitActions.ts
index 72a2022f1f9..11f4b998eea 100644
--- a/src/vs/workbench/parts/git/browser/gitActions.ts
+++ b/src/vs/workbench/parts/git/browser/gitActions.ts
@@ -1150,6 +1150,21 @@ export class UndoLastCommitAction extends GitAction {
 		super(UndoLastCommitAction.ID, UndoLastCommitAction.LABEL, 'git-action undo-last-commit', gitService);
 	}
 
+	protected isEnabled():boolean {
+		if (!this.gitService) {
+			return false;
+		}
+
+		if (!this.gitService.isIdle()) {
+			return false;
+		}
+
+		var status = this.gitService.getModel().getStatus();
+
+		return status.getIndexStatus().all().length === 0
+			&& status.getWorkingTreeStatus().all().length === 0;
+	}
+
 	public run():Promise {
 		return this.gitService.reset('HEAD~');
 	}