jesseduffield.lazygit/pkg/gui/controllers
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
..
helpers Add RefreshBlockingInput to buffer keypresses until a refresh has landed 2026-07-22 08:31:11 +02:00
attach.go Add OnQuit hook for controllers 2026-04-21 11:25:29 +02:00
base_controller.go Copy gocui files into lazygit repo under pkg/gocui 2026-04-30 14:29:08 +02:00
basic_commits_controller.go Move the new-worktree keybinding from worktrees to universal 2026-07-03 18:53:05 +02:00
bisect_controller.go Remove the RefreshMode field 2026-07-17 12:32:32 +02:00
branches_controller.go Remove the RefreshMode field 2026-07-17 12:32:32 +02:00
command_log_controller.go Remove return value of Focus-related functions 2024-09-06 08:45:48 +02:00
commit_description_controller.go Fold remaining alt bindings into their main fields 2026-05-25 15:32:47 +02:00
commit_message_controller.go Convert keybinding fields to Keybinding 2026-05-25 15:32:47 +02:00
commits_files_controller.go Block input during the worker commit-surgery ops 2026-07-17 12:32:32 +02:00
common.go lots of changes 2023-04-30 13:19:53 +10:00
confirmation_controller.go Rename Key to Keys in Binding, KeybindingsOpts, and MenuItem 2026-05-25 15:18:18 +02:00
context_lines_controller.go Rename Key to Keys in Binding, KeybindingsOpts, and MenuItem 2026-05-25 15:18:18 +02:00
custom_patch_options_menu_action.go Remove the RefreshMode field 2026-07-17 12:32:32 +02:00
diffing_menu_action.go Remove the RefreshMode field 2026-07-17 12:32:32 +02:00
edit_config_action.go Extract editConfig into a shared EditConfigAction 2026-06-24 22:03:57 +02:00
files_controller.go Don't auto-forward branches when the repo was switched during the fetch 2026-07-20 17:07:39 +02:00
filter_controller.go Rename Key to Keys in Binding, KeybindingsOpts, and MenuItem 2026-05-25 15:18:18 +02:00
filtering_menu_action.go Make RefreshOptions.Then a func() error, queue it via OnUIThread 2026-07-07 18:09:33 +02:00
git_flow_controller.go Rename Key to Keys in Binding, KeybindingsOpts, and MenuItem 2026-05-25 15:18:18 +02:00
global_controller.go Remove the RefreshMode field 2026-07-17 12:32:32 +02:00
jump_to_side_window_controller.go Stop requiring jumpToBlock to have exactly five entries 2026-06-23 14:15:18 +02:00
list_controller.go Fold remaining alt bindings into their main fields 2026-05-25 15:32:47 +02:00
list_controller_trait.go Enable nolintlint linter, and fix warnings 2025-06-30 18:30:11 +02:00
local_commits_controller.go Block input during the worker commit-surgery ops 2026-07-17 12:32:32 +02:00
local_commits_controller_test.go Move isFixupCommit to FixupHelper 2026-01-24 16:04:35 +01:00
main_view_controller.go Rename Key to Keys in Binding, KeybindingsOpts, and MenuItem 2026-05-25 15:18:18 +02:00
menu_controller.go Rename Key to Keys in Binding, KeybindingsOpts, and MenuItem 2026-05-25 15:18:18 +02:00
menu_key.go Use a slice of keys for each binding 2026-05-25 15:18:18 +02:00
merge_conflicts_controller.go Remove the RefreshMode field 2026-07-17 12:32:32 +02:00
options_menu_action.go If a menu entry has multiple keybindings, list them in a tooltip 2026-05-25 15:32:47 +02:00
patch_building_controller.go Run the sync commit-surgery ops on a worker with input blocked 2026-07-17 12:32:32 +02:00
patch_explorer_controller.go Fold remaining alt bindings into their main fields 2026-05-25 15:32:47 +02:00
patch_explorer_controller_test.go Strip the '+' and '-' characters when copying parts of a diff to the clipboard 2025-04-29 11:33:47 +02:00
prompt_controller.go Rename Key to Keys in Binding, KeybindingsOpts, and MenuItem 2026-05-25 15:18:18 +02:00
quit_actions.go Refuse a repo switch while a foreground operation is in flight 2026-07-07 18:09:33 +02:00
reflog_commits_controller.go Fix showing diffs for renamed file when filtering by path 2025-07-27 12:05:41 +02:00
remote_branches_controller.go Remove the RefreshMode field 2026-07-17 12:32:32 +02:00
remotes_controller.go Update comments that still describe the removed blocking refresh mode 2026-07-21 22:23:58 +02:00
remotes_controller_test.go feat: add fork remote command 2025-11-16 17:26:00 +01:00
rename_similarity_threshold_controller.go Show renamed files in the custom patch builder 2026-07-04 13:05:09 +02:00
screen_mode_actions.go Copy gocui files into lazygit repo under pkg/gocui 2026-04-30 14:29:08 +02:00
scroll_off_margin.go Replace min/max helpers with built-in min/max 2024-04-07 23:24:10 +08:00
scroll_off_margin_test.go Add tests for scroll-off margin of zero 2023-08-21 08:10:28 +02:00
search_controller.go Rename Key to Keys in Binding, KeybindingsOpts, and MenuItem 2026-05-25 15:18:18 +02:00
search_prompt_controller.go Rename Key to Keys in Binding, KeybindingsOpts, and MenuItem 2026-05-25 15:18:18 +02:00
shell_command_action.go Strip leading/trailing whitespace from prompt input 2025-11-15 15:38:24 +01:00
side_window_controller.go Fold remaining alt bindings into their main fields 2026-05-25 15:32:47 +02:00
snake_controller.go Rename Key to Keys in Binding, KeybindingsOpts, and MenuItem 2026-05-25 15:18:18 +02:00
staging_controller.go Add RefreshBlockingInput to buffer keypresses until a refresh has landed 2026-07-22 08:31:11 +02:00
stash_controller.go Refresh once when dropping multiple stash entries 2026-07-17 12:35:54 +02:00
status_controller.go Extract editConfig into a shared EditConfigAction 2026-06-24 22:03:57 +02:00
sub_commits_controller.go Remove the RefreshMode field 2026-07-17 12:32:32 +02:00
submodules_controller.go Capture the files, reflog, branches and stash refresh inputs 2026-07-07 18:10:45 +02:00
suggestions_controller.go Rename Key to Keys in Binding, KeybindingsOpts, and MenuItem 2026-05-25 15:18:18 +02:00
switch_to_diff_files_controller.go Move post-COMMIT_FILES-refresh work into Then 2026-07-07 18:09:33 +02:00
switch_to_focused_main_view_controller.go Rename Key to Keys in Binding, KeybindingsOpts, and MenuItem 2026-05-25 15:18:18 +02:00
switch_to_sub_commits_controller.go Rename Key to Keys in Binding, KeybindingsOpts, and MenuItem 2026-05-25 15:18:18 +02:00
sync_controller.go Remove the RefreshMode field 2026-07-17 12:32:32 +02:00
tags_controller.go Remove the RefreshMode field 2026-07-17 12:32:32 +02:00
toggle_whitespace_action.go Move IgnoreWhitespaceInDiffView to user config 2025-07-09 13:15:03 +02:00
undo_controller.go Capture the commits refresh's inputs on the UI thread 2026-07-07 18:10:45 +02:00
vertical_scroll_controller.go Read lines based on scroll position instead of a fixed per-notch delta 2026-07-09 09:32:35 +02:00
view_selection_controller.go Read lines based on scroll position instead of a fixed per-notch delta 2026-07-09 09:32:35 +02:00
workspace_reset_controller.go Remove the RefreshMode field 2026-07-17 12:32:32 +02:00
worktrees_controller.go Offer to delete the branch when removing a worktree 2026-07-03 19:04:44 +02:00