jesseduffield.lazygit/pkg/gui/types
Stefan Haller b96b8a9753 Add RefreshBlockingInput to buffer keypresses until a refresh has landed
A refresh from the UI thread returns immediately and applies its model
and view updates as queued UI-thread callbacks. A key pressed before
those have run is handled against the stale, pre-refresh state. For most
keys that's harmless, but some handlers turn that state into git
commands: pressing space twice in quick succession in the staging panel
builds the second patch from the already-applied diff and fails with
'patch does not apply', because the refresh after the first press is
what moves the selection to the next stageable hunk.

Notably, this is not just a regression of the recent change that made
UI-thread refreshes non-blocking; the window was merely much narrower
before. A blocking refresh parked the UI thread while the scopes'
bounces were queued, and the event loop drains pending keyboard input
with priority over queued user events, so a key pressed during the
blocked window still beat the queued state updates. The guarantee that
the next keypress sees post-refresh state had already ended when the
scopes' state updates moved from worker-side mutex-guarded writes to
UI-thread bounces.

Fix it with the input-blocking mechanism we already use for commit
surgery, exposed as a new RefreshBlockingInput entry point: it begins
blocking events synchronously in the calling handler, and ends the
block from a callback that the finishing step queues behind the
refresh's own updates. Keys pressed while the refresh is in flight are
buffered and replayed, in order, against the fully refreshed state;
since a replayed key's handler re-enters this same path, a burst of
keypresses applies sequentially, each one seeing the previous one's
refresh. Unlike the old blocking refreshes, this doesn't freeze the UI
thread: rendering, spinners, resizing, and mouse scrolling keep working
while input is withheld.

Blocking input is opt-in per call site rather than the default for all
UI-thread refreshes, because most refreshes (the focus-in and startup
refreshes, say) don't produce state that the next keypress depends on,
and blocking on them would delay typing for no reason. It should also be
limited to quick, narrow-scoped refreshes: a full refresh, or any scope
that pulls in COMMITS, can take very long in large repos and should
usually not hold up input.

The staging panel's stage/discard/edit-hunk refreshes use it now.
2026-07-22 08:31:11 +02:00
..
common.go Add RefreshBlockingInput to buffer keypresses until a refresh has landed 2026-07-22 08:31:11 +02:00
common_commands.go Don't refresh pull requests when checking out a local branch 2026-04-01 09:13:55 +02:00
context.go Convert keybinding fields to Keybinding 2026-05-25 15:32:47 +02:00
keybindings.go Rename Key to Keys in Binding, KeybindingsOpts, and MenuItem 2026-05-25 15:18:18 +02:00
modes.go Add a "Mark commit as base commit for rebase" command 2023-07-31 08:41:41 +02:00
ref_range.go Move the Ref interface from gui/types to models 2025-07-31 15:21:34 +02:00
refresh.go Don't refuse a repo switch during a pure refresh 2026-07-20 17:07:39 +02:00
rendering.go Cleanup: add NewRunPtyTaskWithPrefix funxtion instead of setting Prefix manually 2025-07-02 16:15:19 +02:00
search_state.go Add search history 2023-09-20 08:35:41 +03:00
suggestion.go Set groundwork for better disabled reasons with range select 2024-01-23 13:03:37 +11:00
version_number.go Show popup message with breaking changes on startup 2024-03-12 13:27:14 +01:00
version_number_test.go Show popup message with breaking changes on startup 2024-03-12 13:27:14 +01:00
views.go Copy gocui files into lazygit repo under pkg/gocui 2026-04-30 14:29:08 +02:00