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Noah Masur
d4e56dd190
A/B in a live lagging shell: disabling fish_autosuggestion_enabled cures the lag instantly, and re-enabling does NOT bring it back — the toggle resets the wedged reader state. __autosuggestion_unwedge (fish_postexec) now applies that reset after every command, at the moment TUIs exit. Builtins only, invisible, respects a deliberate manual disable. Flight recorder stays armed until the hook is proven in real use. Also from this investigation: wedged-thread evidence (sampler attach cures), lag-sample tool, flight recorder in the zellij fish wrapper.
22 lines
1.1 KiB
Fish
22 lines
1.1 KiB
Fish
# Self-heal for the post-TUI typing lag (fish 4.8.1, see docs/CHANGELOG.md
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# 2026-08-29..31): exiting a TUI can wedge fish's autosuggestion pipeline,
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# after which every keystroke at the commandline lags until the process is
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# replaced. Empirically validated cure: turn autosuggestions off and back on
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# in the affected shell. This hook applies that reset after every command —
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# i.e. at the exact moment a TUI has just exited — using only builtins, so it
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# is effectively free and invisible.
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#
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# Caveats, recorded for honesty: the manual cure had keystrokes between the
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# off and the on; whether an immediate off/on inside an event handler resets
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# the same reader state is unproven (the flight recorder stays armed to catch
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# any recurrence). If lag ever appears despite this hook, cure manually with
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# set -g fish_autosuggestion_enabled 0 (type a few chars)
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# set -g fish_autosuggestion_enabled 1
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# and save ~/.local/state/lag-triage/flight/ logs for that shell's pid.
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# Respect a deliberate user choice to keep autosuggestions off.
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if test "$fish_autosuggestion_enabled" != 0
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set -g fish_autosuggestion_enabled 0
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set -g fish_autosuggestion_enabled 1
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end
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