Add undo checkpoint command (#2115)

* added undo checkpoint command

* changed add_undo_checkpoint to commit_undo_checkpoint

* mapped commit_undo_checkpoint to Alt-u

* Update default.rs

Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>

1 files changed, 6 insertions, 0 deletions

diff --git a/helix-term/src/commands.rs b/helix-term/src/commands.rs
index 54dcc98f..e2d10d21 100644
--- a/helix-term/src/commands.rs
+++ b/helix-term/src/commands.rs
@@ -318,6 +318,7 @@ impl MappableCommand {
         redo, "Redo change",
         earlier, "Move backward in history",
         later, "Move forward in history",
+        commit_undo_checkpoint, "Commit changes to a new checkpoint",
         yank, "Yank selection",
         yank_joined_to_clipboard, "Join and yank selections to clipboard",
         yank_main_selection_to_clipboard, "Yank main selection to clipboard",
@@ -3001,6 +3002,11 @@ fn later(cx: &mut Context) {
     }
 }
 
+fn commit_undo_checkpoint(cx: &mut Context) {
+    let (view, doc) = current!(cx.editor);
+    doc.append_changes_to_history(view.id);
+}
+
 // Yank / Paste
 
 fn yank(cx: &mut Context) {