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| Author | SHA1 | Date | |
|---|---|---|---|
 Noah Masur
|
744afbb2d8 | ||
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Noah Masur
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6edfa03206 | ||
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Noah Masur
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25f7af63ad | ||
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Noah Masur
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fde3b0214a | ||
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Noah Masur
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612ffdaaaf | ||
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Noah Masur
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bc43f3dfaf | ||
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Noah Masur
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33c426bc8e | ||
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Noah Masur
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da7f8639ae |
No files matched your search
@@ -1,5 +1,44 @@
|
||||
# Changelog
|
||||
|
||||
## 2026-10-17: removed post-TUI lag tooling
|
||||
|
||||
- With the root cause fixed (starship notifications, below), removed the `lag-triage` module: `lag-triage`, `unlag`, `lag-sample`, `term-probe`, the PTY repro script, the flight recorder filter and the Ctrl-b `heal-autosuggest` binding. Also deleted its `power-user.nix` enable and `~/.local/state/lag-triage`.
|
||||
- The zellij `fish-no-query-term` wrapper now only exports `fish_features=no-query-term` before starting fish; the recorder is gone.
|
||||
|
||||
## 2026-10-17: post-TUI lag ROOT CAUSE — starship cmd_duration notifications
|
||||
|
||||
- The first timestamped episode (fish 4.9.3, fresh zellij session) showed fish handling keys in ~1ms, but every prompt took **~2s**, blocked on one child process. After Ctrl-b, prompts dropped to ~50ms.
|
||||
- Cause: `starship.nix` set `cmd_duration.show_notifications = true` on darwin only (`min_time_to_notify = 30000`). On macOS, sending that notification blocks `starship prompt` for ~2s (measured: 0.03s with `--cmd-duration=100` vs 2.02s with `--cmd-duration=600000`). fish keeps `$CMD_DURATION` until another command actually executes. So after any command over 30s (i.e. every TUI session), every prompt redraw re-sent the notification and froze the shell for 2s: Enter on an empty line, vi mode switches, repaints.
|
||||
- This explains every observation: macOS-only (Linux had notifications off), "post-TUI" (TUIs are the long commands), and why the toggle "cured" it. Executing *any* command resets `$CMD_DURATION`; autosuggestions were never involved. The 2026-08/09 entries blaming fish autosuggestions, query-term and thread pools were wrong.
|
||||
- Fix: `show_notifications = false` everywhere. Verified: the real config with a 10-minute duration renders in 0.05s and still shows the duration.
|
||||
|
||||
## 2026-10-17: disable atuin tests
|
||||
|
||||
- Added `overlays/atuin.nix` to disable atuin 18.23.0's `checkPhase`. Its
|
||||
PTY-driven e2e tests (`tests/e2e_capture.rs`, `tests/e2e_pty.rs`, notably the
|
||||
bash-preexec variants) time out in the darwin build sandbox ("timed out
|
||||
waiting for shell session ID", `captured: []`), which broke
|
||||
`nh home switch` for `lookingglass` after the flake update. atuin isn't in
|
||||
the binary cache for aarch64-darwin, so it gets built locally. Skipping
|
||||
individual tests wasn't viable: cargo stops at the first failing test binary,
|
||||
hiding later failures behind ~13-minute rebuilds. The 554 unit tests passed.
|
||||
|
||||
## 2026-10-17: fix flake check for AWS-only arrow
|
||||
|
||||
- `nix flake check` (run by the weekly Update Flake workflow) failed evaluating `packages.x86_64-linux.arrow-iso`: arrow now imports `amazon-image.nix` directly, which conflicts with the `iso` and `qcow-efi` generator formats (`boot.loader.timeout` 1 vs 10, and similar).
|
||||
- `flake.nix` now has an `awsOnlyHosts = [ "arrow" ]` list; those hosts only get the `-aws` image. `arrow-iso` and `arrow-qcow` are no longer exported.
|
||||
|
||||
## 2026-10-15: post-TUI lag — re-investigation, timestamped recorder
|
||||
|
||||
- **Status: root cause still unproven.** Not reproducible in fresh shells: a PTY harness (with and without a real zellij 0.45.1 session, fish 4.9.3, the real config and a copy of the real history) showed no echo-latency change after hx (with nixd/marksman/rumdl running), jjui, yazi, vim, less, lazygit or Claude Code, nor with huge history autosuggestions or concurrent history writers.
|
||||
- New facts:
|
||||
- Timeline: fish 4.8.0 first landed in the store on 2026-07-05 and the first lag fix attempt was 2026-08-08. 4.8.0 changed history timestamps/merging (fish #10300), which is the data autosuggestions search on every keystroke.
|
||||
- Today's (2026-10-15) lag was in a 36-day-old fish **4.8.1** pane. 57 of 85 running fish processes are still 4.8.1 (started before 4.9.3 was installed on 2026-09-24); there is no evidence yet either way that 4.9.3 shells lag. Long-lived shells are the main difference from every failed reproduction.
|
||||
- In the shell history, the command run right before a heal was `hx` in 4 of the 5 cases with usable context (Helix, not previously on the trigger list).
|
||||
- Corrections to earlier entries: the thread-pool starvation theory (2026-08-31) is not supported. In all September flight logs every enqueued work item was picked up by a worker (2090/2090). The September logs had no timestamps, so they cannot show whether fish was slow to handle keys or the delay was downstream (zellij/ghostty). In most pre-heal windows fish handled keys one at a time with a repaint after each (no input backlog), which weakly points away from fish's input loop.
|
||||
- Recorder upgrade (`zellij.nix` `fish-no-query-term`, `lag-triage/flight_filter.pl`): when `~/.local/state/lag-triage/RECORD` exists, new pane shells stream `FISH_DEBUG` through a FIFO into a Perl filter that adds millisecond timestamps and redacts typed/pasted content and command lines (the September logs contained pasted secrets in clear text). Added `reader-render`, `complete`, `autoload`, `history` and `uvar-notifier` categories. `config.fish` now drops `FISH_DEBUG`/`FISH_DEBUG_OUTPUT` so subshells and `fish -c` children no longer write into the recorder's path (they previously truncated the same log file).
|
||||
- `heal-autosuggest` (Ctrl-b) now first copies the last 20k lines of the pane's timestamped log to `~/.local/state/lag-triage/episodes/`, so pressing it during a lag preserves the evidence. Next step: analyze the first episode (time from each `Read byte` to the following `Writing terminal command` decides fish-side versus downstream).
|
||||
|
||||
## 2026-10-11
|
||||
|
||||
- **Configured `arrow` host for AWS EC2 deployment**:
|
||||
|
||||
Generated
+24
-24
@@ -234,11 +234,11 @@
|
||||
]
|
||||
},
|
||||
"locked": {
|
||||
"lastModified": 1791600313,
|
||||
"narHash": "sha256-/2gb2WTztITD/JU1XUCg63vDsIfJGLr0LDsjSCTTJc8=",
|
||||
"lastModified": 1792098797,
|
||||
"narHash": "sha256-u4DIIZgznEGzByxXrxWCXK19VcMtTBmi/M9gZ7Jk9bM=",
|
||||
"owner": "nix-community",
|
||||
"repo": "home-manager",
|
||||
"rev": "427c74a88a93cc9f856c8bb99bf6b4a5187a6b33",
|
||||
"rev": "640725978b99076e18e069f6e7d2959124584f8f",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
@@ -277,11 +277,11 @@
|
||||
"nixpkgs": "nixpkgs_5"
|
||||
},
|
||||
"locked": {
|
||||
"lastModified": 1784936738,
|
||||
"narHash": "sha256-X4w9BrFkisfzla3m1WwDJUicUbI7JRdhzq5aS7rrB0k=",
|
||||
"lastModified": 1792092848,
|
||||
"narHash": "sha256-L8uKQaS6wqZxXm7ULQynxnw8m5nZlqaJcbZ2+1ECXbE=",
|
||||
"owner": "MichailiK",
|
||||
"repo": "nix-caddy-withplugins",
|
||||
"rev": "70307cfc568e5434cf42067d797b27c38ea69944",
|
||||
"rev": "5181c7953264f637f7455cc95c84cf92346c8098",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
@@ -298,11 +298,11 @@
|
||||
]
|
||||
},
|
||||
"locked": {
|
||||
"lastModified": 1791105314,
|
||||
"narHash": "sha256-oTM7QFgRQ+vxBpMBMc7hEYpqBtpXAzXu2xuB/tru84U=",
|
||||
"lastModified": 1791711434,
|
||||
"narHash": "sha256-LpIhxnuO0tYeZ4k7BbNMxsPs2zJpB4hWXO1jdhUuE7Q=",
|
||||
"owner": "nix-community",
|
||||
"repo": "nix-index-database",
|
||||
"rev": "e740bc4e9d8918d7819a51486d5099930c65c72e",
|
||||
"rev": "9a2dd40780eeab8543aa97c59c26f11267025616",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
@@ -401,11 +401,11 @@
|
||||
},
|
||||
"nixpkgs-stable": {
|
||||
"locked": {
|
||||
"lastModified": 1791426274,
|
||||
"narHash": "sha256-MWhktfFtFE8Jl7bf9Pkp7TR5MSdYCjCswSo0Gkb4ywc=",
|
||||
"lastModified": 1792030654,
|
||||
"narHash": "sha256-OaQwAtPMTjQiY2sT/2/62UbSPhzP/0aDnWzMm/NCiUw=",
|
||||
"owner": "nixos",
|
||||
"repo": "nixpkgs",
|
||||
"rev": "7c8764b7c7b09b34f632464276218ef9090eaa11",
|
||||
"rev": "26f4107e47e3ad0ffd0db220469ba83b6f6d96e8",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
@@ -465,11 +465,11 @@
|
||||
},
|
||||
"nixpkgs_5": {
|
||||
"locked": {
|
||||
"lastModified": 1781074563,
|
||||
"narHash": "sha256-md8WlXOlfnIeHeOScMTTHFyf2d6iaTwPl2apR5EQ3P4=",
|
||||
"lastModified": 1791956154,
|
||||
"narHash": "sha256-jBYGPi4udQ9uo4KQp9m2J0546nJVQitG15gvZSaVVAs=",
|
||||
"owner": "NixOS",
|
||||
"repo": "nixpkgs",
|
||||
"rev": "9ae611a455b90cf061d8f332b977e387bda8e1ca",
|
||||
"rev": "55bfb4d7437bd4e09ab7cba58a43bd68eb310044",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
@@ -481,11 +481,11 @@
|
||||
},
|
||||
"nixpkgs_6": {
|
||||
"locked": {
|
||||
"lastModified": 1791456040,
|
||||
"narHash": "sha256-H83yz/do+hjOO0uujHyH8RgtIQP2v7Mw+cLwcZK/xKc=",
|
||||
"lastModified": 1791956154,
|
||||
"narHash": "sha256-jBYGPi4udQ9uo4KQp9m2J0546nJVQitG15gvZSaVVAs=",
|
||||
"owner": "nixos",
|
||||
"repo": "nixpkgs",
|
||||
"rev": "e7439b6b14ad3cc35d05608ebca9bce01a25f5f8",
|
||||
"rev": "55bfb4d7437bd4e09ab7cba58a43bd68eb310044",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
@@ -519,11 +519,11 @@
|
||||
]
|
||||
},
|
||||
"locked": {
|
||||
"lastModified": 1791626603,
|
||||
"narHash": "sha256-I16LCKG4Bh3WaMFHppz7gbF70smYOicr/DalSleXatU=",
|
||||
"lastModified": 1792249243,
|
||||
"narHash": "sha256-zDZMBwcbcj2ufGk9EGy+BnUnV3BT/NiYuNynGiQ0SqA=",
|
||||
"owner": "nix-community",
|
||||
"repo": "nur",
|
||||
"rev": "241ca011a9fcefa68b42e8d5bd55aac59f6d9fe4",
|
||||
"rev": "c21b30ed2ab024497fcd0c26abb0757a3fd1d100",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
@@ -557,11 +557,11 @@
|
||||
"nixpkgs": "nixpkgs_7"
|
||||
},
|
||||
"locked": {
|
||||
"lastModified": 1791620365,
|
||||
"narHash": "sha256-CVZXIDNw7HEwyD8X6q9Ln370Sc0ZqRlTzDRwOZ1hJMY=",
|
||||
"lastModified": 1792219666,
|
||||
"narHash": "sha256-RMO08tKD+hFIL5ryWi85VY4aHE5oIpdV1h4kVFctOkw=",
|
||||
"owner": "oxalica",
|
||||
"repo": "rust-overlay",
|
||||
"rev": "e90fafa71b440fabcd52dd7fb017ab2da81c781a",
|
||||
"rev": "a110337465cfb76e3806b81b9db3094c3e6e770a",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
|
||||
@@ -183,27 +183,35 @@
|
||||
root = import ./hosts/x86_64-linux/swan/root.nix;
|
||||
};
|
||||
|
||||
awsOnlyHosts = [ "arrow" ];
|
||||
|
||||
generators = builtins.mapAttrs (
|
||||
# x86_64-linux = { arrow = ...; swan = ...; }
|
||||
system: hosts:
|
||||
(lib.concatMapAttrs (name: module: {
|
||||
"${name}-aws" = lib.generateImage {
|
||||
inherit system module;
|
||||
format = "amazon";
|
||||
specialArgs = { inherit hostnames; };
|
||||
};
|
||||
"${name}-iso" = lib.generateImage {
|
||||
inherit system module;
|
||||
format = "iso";
|
||||
specialArgs = { inherit hostnames; };
|
||||
};
|
||||
"${name}-qcow" = lib.generateImage {
|
||||
inherit system module;
|
||||
format = "qcow-efi";
|
||||
specialArgs = { inherit hostnames; };
|
||||
# extraModules = [ "${nixpkgs}/nixos/modules/virtualisation/oci-image.nix" ];
|
||||
};
|
||||
}) hosts)
|
||||
(lib.concatMapAttrs (
|
||||
name: module:
|
||||
{
|
||||
"${name}-aws" = lib.generateImage {
|
||||
inherit system module;
|
||||
format = "amazon";
|
||||
specialArgs = { inherit hostnames; };
|
||||
};
|
||||
}
|
||||
# Hosts that import amazon-image.nix directly conflict with other formats
|
||||
// lib.optionalAttrs (!builtins.elem name awsOnlyHosts) {
|
||||
"${name}-iso" = lib.generateImage {
|
||||
inherit system module;
|
||||
format = "iso";
|
||||
specialArgs = { inherit hostnames; };
|
||||
};
|
||||
"${name}-qcow" = lib.generateImage {
|
||||
inherit system module;
|
||||
format = "qcow-efi";
|
||||
specialArgs = { inherit hostnames; };
|
||||
# extraModules = [ "${nixpkgs}/nixos/modules/virtualisation/oci-image.nix" ];
|
||||
};
|
||||
}
|
||||
) hosts)
|
||||
) lib.linuxHosts # x86_64-linux = { arrow = ...; swan = ...; }
|
||||
;
|
||||
|
||||
|
||||
@@ -0,0 +1,10 @@
|
||||
_inputs: _final: prev: {
|
||||
|
||||
# atuin 18.23.0's PTY-driven e2e tests (e2e_capture, e2e_pty) time out in the
|
||||
# darwin build sandbox: shell hooks never report a session ID or history
|
||||
# entry. Unit tests pass, but cargo aborts on the first failing e2e binary.
|
||||
atuin = prev.atuin.overrideAttrs (_old: {
|
||||
doCheck = false;
|
||||
});
|
||||
|
||||
}
|
||||
@@ -33,7 +33,7 @@ in
|
||||
# size = 11.0;
|
||||
};
|
||||
services.polybar.config."bar/main".font-0 = "Hack Nerd Font:size=10;2";
|
||||
programs.rofi.font = "Hack Nerd Font 14";
|
||||
programs.rofi.settings.font = "Hack Nerd Font 14";
|
||||
programs.alacritty.settings.font.normal.family = "Maple Mono NF";
|
||||
programs.kitty.font.name = "Maple Mono NF";
|
||||
nmasur.presets.programs.wezterm.font = "Maple Mono NF";
|
||||
|
||||
@@ -28,6 +28,7 @@ in
|
||||
cask "topnotch" # Darkens the menu bar to complete black
|
||||
cask "ghostty" # Terminal application (not buildable on Nix on macOS)
|
||||
cask "discord" # nixpkgs bundle breaks its notarization seal on macOS 26+
|
||||
cask "vorssaint" # Customizations and automations for macOS
|
||||
|
||||
# Mac App Store apps (requires 'mas' CLI, optional)
|
||||
# mas "Tailscale", id: 1475387142
|
||||
|
||||
@@ -1,72 +0,0 @@
|
||||
{
|
||||
config,
|
||||
pkgs,
|
||||
lib,
|
||||
...
|
||||
}:
|
||||
|
||||
let
|
||||
cfg = config.nmasur.presets.programs.lag-triage;
|
||||
|
||||
term-probe = pkgs.writeScriptBin "term-probe" ''
|
||||
#!${lib.getExe pkgs.python3}
|
||||
${builtins.readFile ./term_probe.py}
|
||||
'';
|
||||
in
|
||||
|
||||
{
|
||||
|
||||
options.nmasur.presets.programs.lag-triage.enable =
|
||||
lib.mkEnableOption "Terminal input-lag triage tools";
|
||||
|
||||
config = lib.mkIf cfg.enable {
|
||||
|
||||
home.packages = [ term-probe ];
|
||||
|
||||
# Ctrl-b: EXECUTE the proven manual cure as a real commandline. The cure
|
||||
# is not the variable's end value (it starts and ends at 1) — it is the
|
||||
# reader fully exiting readline and re-entering, which only command
|
||||
# EXECUTION does. Setting the variable inline (a plain binding body, or the
|
||||
# old fish_postexec/fish_cancel hook) never makes the reader exit/re-enter,
|
||||
# so it never cured and, with extra repaints on a wedged reader, made it
|
||||
# worse. `commandline -f execute` reproduces exactly what typing the cure
|
||||
# and pressing Enter does — indistinguishable to fish from the manual cure.
|
||||
# Note: this submits the current commandline, so it runs the cure in place
|
||||
# of whatever is typed (fine for a rescue key hit at an empty prompt).
|
||||
# Ctrl-b chosen because it is otherwise unbound (Ctrl-g is taken).
|
||||
nmasur.presets.programs.fish.fish_user_key_bindings = # fish
|
||||
''
|
||||
for mode in insert default visual
|
||||
bind -M $mode \cb heal-autosuggest
|
||||
end
|
||||
'';
|
||||
|
||||
programs.fish.functions = {
|
||||
lag-triage = {
|
||||
description = "Diagnose post-TUI typing lag in the current shell";
|
||||
body = builtins.readFile ./lag-triage.fish;
|
||||
};
|
||||
unlag = {
|
||||
description = "Reset terminal state left behind by a TUI";
|
||||
body = builtins.readFile ./unlag.fish;
|
||||
};
|
||||
lag-sample = {
|
||||
description = "Stack-sample fish and zellij while typing lag is happening";
|
||||
body = builtins.readFile ./lag-sample.fish;
|
||||
};
|
||||
heal-autosuggest = {
|
||||
description = "Heal post-TUI typing lag by executing the autosuggestion-toggle cure (bind to a key)";
|
||||
# Replace the commandline with the exact cure the user runs by hand and
|
||||
# execute it. Executing (not inline-setting) is what cures: it forces
|
||||
# the reader to leave and re-enter readline. Runs in place of whatever
|
||||
# is currently typed.
|
||||
body = # fish
|
||||
''
|
||||
commandline -r 'set -g fish_autosuggestion_enabled 0; and set -g fish_autosuggestion_enabled 1'
|
||||
commandline -f execute
|
||||
'';
|
||||
};
|
||||
};
|
||||
|
||||
};
|
||||
}
|
||||
@@ -1,53 +0,0 @@
|
||||
# Capture stack samples of this fish process, the zellij server, and the
|
||||
# zellij client WHILE the typing lag is happening. This names the guilty
|
||||
# component directly: if fish's main thread is busy/blocked per keystroke the
|
||||
# stacks show exactly where; if fish is idle while typing feels laggy, the
|
||||
# delay is in zellij's render path instead.
|
||||
#
|
||||
# CAUTION (learned 2026-08-30): attaching the sampler to a lagging fish CURES
|
||||
# the lag (thread suspend/resume unwedges it), so run this from a DIFFERENT
|
||||
# pane with the lagging shell's pid: `lag-sample <pid>` (get it in the lagging
|
||||
# shell with the builtin-only `echo $fish_pid`). Have someone type in the
|
||||
# lagging pane while sampling runs — the first samples may catch the wedge.
|
||||
# With no argument it samples the current shell.
|
||||
|
||||
set -l target $fish_pid
|
||||
if test (count $argv) -ge 1; and test -n "$argv[1]"
|
||||
set target $argv[1]
|
||||
end
|
||||
|
||||
set -l outdir ~/.local/state/lag-triage
|
||||
mkdir -p $outdir
|
||||
set -l ts (date +%Y%m%d-%H%M%S)
|
||||
set -l dur 8
|
||||
|
||||
set -l fishfile $outdir/sample-$ts-fish-$target.txt
|
||||
/usr/bin/sample $target $dur 1 -file $fishfile &>/dev/null &
|
||||
disown
|
||||
|
||||
# this session's zellij server (socket path ends in the session name)
|
||||
set -l serverpid (pgrep -f "zellij --server.*/$ZELLIJ_SESSION_NAME\$")
|
||||
test -z "$serverpid"; and set serverpid (pgrep -f "zellij --server" | head -3)
|
||||
for pid in $serverpid
|
||||
/usr/bin/sample $pid $dur 1 -file $outdir/sample-$ts-zellij-server-$pid.txt &>/dev/null &
|
||||
disown
|
||||
end
|
||||
|
||||
# zellij clients (attached to ghostty): named zellij but without --server args
|
||||
set -l allserver (pgrep -f "zellij --server")
|
||||
set -l clientpid
|
||||
for pid in (pgrep -x zellij)
|
||||
contains $pid $allserver; or set -a clientpid $pid
|
||||
end
|
||||
for pid in $clientpid[1..3]
|
||||
/usr/bin/sample $pid $dur 1 -file $outdir/sample-$ts-zellij-client-$pid.txt &>/dev/null &
|
||||
disown
|
||||
end
|
||||
|
||||
# notify when done, without occupying the commandline
|
||||
fish -c "sleep (math $dur + 2); echo; echo '== lag-sample done: '$outdir'/sample-$ts-*.txt =='" &
|
||||
disown
|
||||
|
||||
echo "Sampling fish (pid $target), zellij server(s) [$serverpid], client(s) [$clientpid] for $dur s."
|
||||
echo ">>> TYPE CONTINUOUSLY IN THE LAGGING PANE NOW (junk text is fine) <<<"
|
||||
echo "Files: $outdir/sample-$ts-*.txt"
|
||||
@@ -1,182 +0,0 @@
|
||||
# Guided diagnosis for the post-TUI typing-lag problem (Ghostty + Zellij + fish).
|
||||
# Run this IN THE LAGGING SHELL the moment you notice the lag, BEFORE starting
|
||||
# a new shell. It captures evidence, then applies targeted resets one at a time
|
||||
# so the stage that cures the lag identifies the layer holding stuck state.
|
||||
# Everything is logged for filing an upstream issue.
|
||||
|
||||
set -l logdir ~/.local/state/lag-triage
|
||||
mkdir -p $logdir
|
||||
set -l logfile $logdir/(date +%Y%m%d-%H%M%S).log
|
||||
|
||||
function _lt --inherit-variable logfile
|
||||
echo $argv | tee -a $logfile
|
||||
end
|
||||
|
||||
function _lt_ask --inherit-variable logfile
|
||||
# usage: _lt_ask VARNAME prompt... -> sets global $VARNAME (default: skip)
|
||||
set -l __name $argv[1]
|
||||
read -g -P "$argv[2..] " $__name
|
||||
or set -g $__name skip
|
||||
test -z "$$__name"; and set -g $__name skip
|
||||
echo "ANSWER $__name: $$__name" >>$logfile
|
||||
end
|
||||
|
||||
_lt "== lag-triage "(date)" =="
|
||||
_lt "Log: $logfile"
|
||||
_lt "Answer y / n, or press Enter to skip a question."
|
||||
_lt ""
|
||||
|
||||
# ---- 1. Context -------------------------------------------------------------
|
||||
_lt_ask ans_tui "Which TUI did you just exit (nvim/jjui/yazi/other)?"
|
||||
_lt_ask ans_launch "Launched via (f)loating-pane keybind or (c)ommand typed in this shell?"
|
||||
|
||||
# ---- 2. Snapshot ------------------------------------------------------------
|
||||
begin
|
||||
echo "-- snapshot --"
|
||||
fish --version
|
||||
echo "fish pid: $fish_pid, started: "(ps -o lstart= -p $fish_pid 2>/dev/null)
|
||||
zellij --version 2>/dev/null
|
||||
echo "escape delay: '$fish_escape_delay_ms' sequence delay: '$fish_sequence_key_delay_ms'"
|
||||
env | grep -iE '^(TERM|ZELLIJ|GHOSTTY|COLORTERM)' | sort
|
||||
echo "-- status features --"
|
||||
status features
|
||||
echo "-- stty -a --"
|
||||
stty -a
|
||||
end >>$logfile 2>&1
|
||||
_lt "Captured shell + environment snapshot."
|
||||
|
||||
# Proven root cause of the 2026-08 lag (see docs/CHANGELOG.md 2026-08-29):
|
||||
# fish latches feature flags from its startup env before config.fish runs, so
|
||||
# a shell with query-term ON sends terminal queries after every command; one
|
||||
# reply zellij fails to relay permanently degrades this process's reader.
|
||||
if status features | string match -qr '^query-term\s+on'
|
||||
_lt ""
|
||||
_lt "!! query-term is ON in this shell: fish did NOT get fish_features="
|
||||
_lt "!! no-query-term in its STARTUP environment (config.fish is too late)."
|
||||
_lt "!! This is the proven root cause of the post-TUI lag — a query reply"
|
||||
_lt "!! lost by zellij permanently degrades this fish process's reader."
|
||||
_lt "!! Fix: spawn fish with the variable exported (zellij default_shell"
|
||||
_lt "!! wrapper fish-no-query-term). Subshells are immune because they"
|
||||
_lt "!! inherit the exported variable — that's why a new shell 'fixes' it."
|
||||
else
|
||||
_lt "query-term is off in this shell (good — the known root cause is ruled out)."
|
||||
end
|
||||
|
||||
# ---- 3. Terminal state below the shell --------------------------------------
|
||||
_lt ""
|
||||
_lt "Querying terminal state (takes a few seconds)..."
|
||||
term-probe report 2>&1 | tee -a $logfile
|
||||
_lt ""
|
||||
_lt " ^ Things to look for: kitty flags with a reply > 0, modifyOtherKeys > 1,"
|
||||
_lt " any mouse/alternate-screen mode SET while at a shell prompt, or a slow"
|
||||
_lt " DA1 round-trip (> 100 ms means the input path itself is delayed)."
|
||||
|
||||
# ---- 4. Raw keystroke capture (bypasses fish entirely) ----------------------
|
||||
_lt ""
|
||||
_lt "Raw input capture: type ~10 characters at a steady pace, including one"
|
||||
_lt "ESC press and one arrow key. This shows the exact bytes this pane delivers"
|
||||
_lt "and their timing, with fish's input handling out of the picture."
|
||||
term-probe keylog 2>&1 | tee -a $logfile
|
||||
_lt_ask ans_keylog_instant "Did each keypress appear INSTANTLY in the capture? (y/n)"
|
||||
_lt_ask ans_keylog_plain "Were plain letters single plain bytes like b'a' (not escape sequences)? (y/n)"
|
||||
|
||||
# ---- 5. Scope ---------------------------------------------------------------
|
||||
_lt ""
|
||||
_lt_ask ans_scope_pane "Optional: open a NEW zellij pane/tab and type — laggy there too? (y/n)"
|
||||
_lt_ask ans_scope_window "Optional: type in a separate Ghostty window (outside this zellij session) — laggy? (y/n)"
|
||||
|
||||
# ---- 6. Staged resets -------------------------------------------------------
|
||||
# Each stage resets one category of state a TUI could have left behind.
|
||||
# The first stage that cures the lag names the culprit.
|
||||
set -l fixed none
|
||||
|
||||
_lt ""
|
||||
_lt "Now applying resets one at a time. After each, type into the test prompt"
|
||||
_lt "to judge whether the lag is gone."
|
||||
_lt "CAVEAT: fish's read prompt may NOT exhibit lag even when the main"
|
||||
_lt "commandline does. If typing at these test prompts never feels laggy at"
|
||||
_lt "all, answer 'u' (unsure) instead of 'y' — a 'y' here is only meaningful"
|
||||
_lt "if you could feel the lag at the test prompts before the reset."
|
||||
|
||||
if test $fixed = none
|
||||
_lt ""
|
||||
_lt "Stage A - kitty keyboard protocol: pop stack + clear all flags"
|
||||
printf '\e[<9u\e[=0;1u'
|
||||
_lt_ask ans_stage_a " Test typing here, then Enter — lag gone? (y/n)"
|
||||
test "$ans_stage_a" = y; and set fixed "A (kitty keyboard state)"
|
||||
end
|
||||
|
||||
if test $fixed = none
|
||||
_lt "Stage B - modifyOtherKeys off"
|
||||
printf '\e[>4;0m'
|
||||
_lt_ask ans_stage_b " Test typing here, then Enter — lag gone? (y/n)"
|
||||
test "$ans_stage_b" = y; and set fixed "B (modifyOtherKeys)"
|
||||
end
|
||||
|
||||
if test $fixed = none
|
||||
_lt "Stage C - normal keypad + normal cursor keys"
|
||||
printf '\e>\e[?1l'
|
||||
_lt_ask ans_stage_c " Test typing here, then Enter — lag gone? (y/n)"
|
||||
test "$ans_stage_c" = y; and set fixed "C (application keypad/cursor mode)"
|
||||
end
|
||||
|
||||
if test $fixed = none
|
||||
_lt "Stage D - disable mouse, focus reporting, synchronized output"
|
||||
printf '\e[?1000l\e[?1001l\e[?1002l\e[?1003l\e[?1005l\e[?1006l\e[?1015l\e[?1016l\e[?1004l\e[?2026l'
|
||||
_lt_ask ans_stage_d " Test typing here, then Enter — lag gone? (y/n)"
|
||||
test "$ans_stage_d" = y; and set fixed "D (mouse/focus/sync modes)"
|
||||
end
|
||||
|
||||
if test $fixed = none
|
||||
_lt "Stage E - leave alternate screen"
|
||||
printf '\e[?1049l'
|
||||
_lt_ask ans_stage_e " Test typing here, then Enter — lag gone? (y/n)"
|
||||
test "$ans_stage_e" = y; and set fixed "E (alternate screen)"
|
||||
end
|
||||
|
||||
if test $fixed = none
|
||||
_lt "Stage F - stty sane (line-discipline reset)"
|
||||
stty sane
|
||||
_lt_ask ans_stage_f " Test typing here, then Enter — lag gone? (y/n)"
|
||||
test "$ans_stage_f" = y; and set fixed "F (termios/line discipline)"
|
||||
end
|
||||
|
||||
if test $fixed = none
|
||||
_lt "Stage G - DECSTR soft terminal reset"
|
||||
printf '\e[!p'
|
||||
_lt_ask ans_stage_g " Test typing here, then Enter — lag gone? (y/n)"
|
||||
test "$ans_stage_g" = y; and set fixed "G (DECSTR-resettable mode)"
|
||||
end
|
||||
|
||||
# ---- 7. Verdict --------------------------------------------------------------
|
||||
_lt ""
|
||||
_lt "== Verdict =="
|
||||
if test $fixed != none
|
||||
_lt "Lag cleared by stage $fixed."
|
||||
_lt "That state was stuck BELOW fish — in the Zellij pane or relayed to"
|
||||
_lt "Ghostty — and the TUI you exited ($ans_tui) failed to restore it, or"
|
||||
_lt "Zellij failed to restore it when the pane closed."
|
||||
_lt "Re-probing terminal state after the fix for comparison:"
|
||||
term-probe report 2>&1 | tee -a $logfile
|
||||
_lt ""
|
||||
_lt "-> File this log against zellij (or ghostty, if a separate window also"
|
||||
_lt " lagged). The before/after probe diff pinpoints the exact stuck mode."
|
||||
else if test "$ans_keylog_instant" = y; and test "$ans_keylog_plain" = y
|
||||
_lt "Raw input reaches this pane instantly as plain bytes, and no terminal"
|
||||
_lt "state reset helps: the lag lives INSIDE this fish process (reader state)."
|
||||
_lt "Confirm now: run 'exec fish' — if that cures it, it is fish-internal."
|
||||
_lt ""
|
||||
_lt "-> To catch it in the act, run your next long-lived shell as:"
|
||||
_lt " FISH_DEBUG='reader,term-support' FISH_DEBUG_OUTPUT=$logdir/fish-debug.log fish"
|
||||
_lt " then re-run lag-triage when it recurs and file both logs to fish-shell."
|
||||
else
|
||||
_lt "Keystrokes were delayed or arrived as escape sequences BEFORE fish saw"
|
||||
_lt "them: the problem is in Zellij (client stdin parser / server) or Ghostty."
|
||||
_lt " new pane also laggy: $ans_scope_pane (y -> session-wide, not this pane)"
|
||||
_lt " separate window laggy: $ans_scope_window (y -> Ghostty itself)"
|
||||
_lt "-> File this log against zellij; include the keylog byte capture."
|
||||
end
|
||||
_lt ""
|
||||
_lt "Full log: $logfile"
|
||||
|
||||
functions -e _lt _lt_ask
|
||||
@@ -1,165 +0,0 @@
|
||||
"""Probe the terminal state of the current pane, below the shell.
|
||||
|
||||
Modes:
|
||||
report - query kitty-keyboard flags, modifyOtherKeys, and DEC private
|
||||
modes directly on /dev/tty, reporting each reply (or lack of
|
||||
one) and its round-trip latency. Answers may come from Zellij
|
||||
(pane state) or be relayed from Ghostty (window state).
|
||||
keylog - raw-mode keystroke capture: prints the exact bytes and
|
||||
inter-key latency for every keypress, bypassing the shell's
|
||||
input machinery entirely. Press q to finish.
|
||||
|
||||
Used by the `lag-triage` fish function to pin down which layer
|
||||
(fish / zellij / ghostty) is holding stuck state when typing lags
|
||||
after a TUI exits.
|
||||
"""
|
||||
|
||||
import os
|
||||
import re
|
||||
import select
|
||||
import sys
|
||||
import termios
|
||||
import time
|
||||
import tty
|
||||
|
||||
# DECRQM reply values
|
||||
DECRQM_VALUES = {
|
||||
"0": "not recognized",
|
||||
"1": "SET",
|
||||
"2": "reset",
|
||||
"3": "permanently set",
|
||||
"4": "permanently reset",
|
||||
}
|
||||
|
||||
DEC_MODES = [
|
||||
(1, "application cursor keys (DECCKM)"),
|
||||
(25, "cursor visible"),
|
||||
(1000, "mouse click reporting"),
|
||||
(1002, "mouse drag reporting"),
|
||||
(1003, "mouse all-motion reporting"),
|
||||
(1004, "focus reporting"),
|
||||
(1006, "SGR mouse encoding"),
|
||||
(1049, "alternate screen"),
|
||||
(2004, "bracketed paste"),
|
||||
(2026, "synchronized output"),
|
||||
(2031, "color theme reporting"),
|
||||
]
|
||||
|
||||
QUERIES = [
|
||||
("kitty keyboard flags (\\e[?u)", b"\x1b[?u", rb"\x1b\[\?(\d+)u", None),
|
||||
("modifyOtherKeys (XTQMODKEYS)", b"\x1b[?4m", rb"\x1b\[>4;(\d+)m", None),
|
||||
("background color (OSC 11)", b"\x1b]11;?\x1b\\", rb"\x1b\]11;([^\x07\x1b]+)", None),
|
||||
] + [
|
||||
(
|
||||
f"DEC mode {num} — {desc}",
|
||||
b"\x1b[?%d$p" % num,
|
||||
rb"\x1b\[\?%d;(\d+)\$y" % num,
|
||||
DECRQM_VALUES,
|
||||
)
|
||||
for num, desc in DEC_MODES
|
||||
]
|
||||
|
||||
|
||||
def read_for(fd, seconds):
|
||||
buf = b""
|
||||
end = time.monotonic() + seconds
|
||||
while True:
|
||||
remaining = end - time.monotonic()
|
||||
if remaining <= 0:
|
||||
break
|
||||
r, _, _ = select.select([fd], [], [], remaining)
|
||||
if not r:
|
||||
break
|
||||
buf += os.read(fd, 4096)
|
||||
return buf
|
||||
|
||||
|
||||
def report(fd):
|
||||
lines = []
|
||||
raw_dump = b""
|
||||
for label, query, pattern, value_names in QUERIES:
|
||||
raw_dump += read_for(fd, 0.02) # drain stragglers
|
||||
start = time.monotonic()
|
||||
os.write(fd, query)
|
||||
buf = b""
|
||||
match = None
|
||||
deadline = time.monotonic() + 0.35
|
||||
while time.monotonic() < deadline:
|
||||
buf += read_for(fd, 0.05)
|
||||
match = re.search(pattern, buf)
|
||||
if match:
|
||||
break
|
||||
raw_dump += buf
|
||||
if match:
|
||||
latency = (time.monotonic() - start) * 1000
|
||||
value = match.group(1).decode("ascii", "replace")
|
||||
if value_names:
|
||||
value = f"{value} ({value_names.get(value, '?')})"
|
||||
lines.append(f" {label:45s} = {value:24s} [{latency:6.1f} ms]")
|
||||
else:
|
||||
lines.append(f" {label:45s} = (no reply)")
|
||||
|
||||
# DA1 as a fence: every terminal answers it, so its round-trip time
|
||||
# measures the whole input path (ghostty -> zellij -> pane -> here).
|
||||
start = time.monotonic()
|
||||
os.write(fd, b"\x1b[c")
|
||||
buf = b""
|
||||
match = None
|
||||
deadline = time.monotonic() + 2.0
|
||||
while time.monotonic() < deadline:
|
||||
buf += read_for(fd, 0.05)
|
||||
match = re.search(rb"\x1b\[\?([0-9;]*)c", buf)
|
||||
if match:
|
||||
break
|
||||
raw_dump += buf
|
||||
if match:
|
||||
latency = (time.monotonic() - start) * 1000
|
||||
lines.append(
|
||||
f" {'device attributes (DA1) round-trip':45s} = "
|
||||
f"{match.group(1).decode():24s} [{latency:6.1f} ms]"
|
||||
)
|
||||
else:
|
||||
lines.append(f" {'device attributes (DA1) round-trip':45s} = (NO REPLY in 2s!)")
|
||||
lines.append(f" raw bytes received: {raw_dump!r}")
|
||||
return lines
|
||||
|
||||
|
||||
def keylog(fd):
|
||||
sys.stdout.write("keylog: capturing raw bytes from the tty. Press q to finish.\r\n")
|
||||
sys.stdout.flush()
|
||||
last = time.monotonic()
|
||||
while True:
|
||||
select.select([fd], [], [], None)
|
||||
data = os.read(fd, 4096)
|
||||
now = time.monotonic()
|
||||
delta_ms = (now - last) * 1000
|
||||
last = now
|
||||
sys.stdout.write(f" +{delta_ms:8.1f} ms {data!r} hex={data.hex(' ')}\r\n")
|
||||
sys.stdout.flush()
|
||||
if data in (b"q", b"\x03", b"\x04"):
|
||||
break
|
||||
|
||||
|
||||
def main():
|
||||
mode = sys.argv[1] if len(sys.argv) > 1 else "report"
|
||||
fd = os.open("/dev/tty", os.O_RDWR)
|
||||
old = termios.tcgetattr(fd)
|
||||
lines = None
|
||||
try:
|
||||
tty.setraw(fd)
|
||||
if mode == "report":
|
||||
lines = report(fd)
|
||||
elif mode == "keylog":
|
||||
keylog(fd)
|
||||
else:
|
||||
raise SystemExit(f"unknown mode: {mode}")
|
||||
finally:
|
||||
termios.tcsetattr(fd, termios.TCSADRAIN, old)
|
||||
os.close(fd)
|
||||
if lines:
|
||||
print("terminal state as seen from this pane:")
|
||||
print("\n".join(lines))
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
@@ -1,15 +0,0 @@
|
||||
# One-shot reset of terminal state a TUI may have left behind (kitty keyboard
|
||||
# flags, modifyOtherKeys, application keypad/cursor, mouse/focus reporting,
|
||||
# alternate screen, termios). fish re-enables the modes it wants at the next
|
||||
# prompt, so this is safe to run any time.
|
||||
#
|
||||
# Diagnostic value: if this cures the lag, the stuck state was below fish
|
||||
# (run lag-triage next time to find which mode). If only `exec fish` cures
|
||||
# it, the lag is inside the fish process itself.
|
||||
printf '\e[<9u\e[=0;1u'
|
||||
printf '\e[>4;0m'
|
||||
printf '\e>\e[?1l'
|
||||
printf '\e[?1000l\e[?1001l\e[?1002l\e[?1003l\e[?1005l\e[?1006l\e[?1015l\e[?1016l\e[?1004l\e[?2026l'
|
||||
printf '\e[?1049l'
|
||||
stty sane
|
||||
echo "terminal state reset — if typing still lags, run lag-triage (before exec fish!)"
|
||||
@@ -1,151 +0,0 @@
|
||||
#!/usr/bin/env python3
|
||||
"""Deterministic repro of permanent fish reader degradation (fish 4.8.1).
|
||||
|
||||
This is evidence for an upstream fish-shell report, and the proof behind the
|
||||
fish-no-query-term wrapper in presets/programs/zellij.nix. Not installed by
|
||||
the nix module; run directly: python3 upstream_repro.py [queryterm|noqueryterm]
|
||||
|
||||
Finding: with the query-term feature enabled (latched from the startup env,
|
||||
which is fish's default), fish sends OSC 11 + CPR (\e[6n) + DA1 (\e[0c)
|
||||
after every external command and waits for the replies. If the terminal
|
||||
fails to reply during ONE such cycle -- even though it answered every query
|
||||
before and answers every query after -- that fish process's interactive
|
||||
reader is PERMANENTLY degraded: keystrokes are no longer echoed (>3s each,
|
||||
never recovers). In production this happens when zellij drops/mis-relays a
|
||||
reply during TUI teardown or heavy output (cf. zellij-org/zellij#5158), and
|
||||
it presents as permanent typing lag cured only by replacing the process.
|
||||
With fish_features=no-query-term in the startup environment, the same
|
||||
sequence has zero effect (~35ms echo throughout).
|
||||
|
||||
Phases:
|
||||
A. terminal answers all queries -> echo ~35ms (both variants)
|
||||
B. replies dropped for one command -> queryterm: echo dead, permanently
|
||||
C. replies restored, another command -> queryterm: still dead
|
||||
"""
|
||||
import os, pty, re, select, subprocess, sys, time, fcntl, termios
|
||||
|
||||
VARIANT = sys.argv[1] if len(sys.argv) > 1 else "queryterm"
|
||||
|
||||
env = dict(os.environ)
|
||||
env["TERM"] = "xterm-ghostty"
|
||||
env["ZELLIJ"] = "0"
|
||||
env["ZELLIJ_SESSION_NAME"] = "repro"
|
||||
env["FISH_DEBUG"] = "term-support"
|
||||
env["FISH_DEBUG_OUTPUT"] = f"/tmp/fish-lagrepro-{VARIANT}.log"
|
||||
env.pop("fish_features", None)
|
||||
if VARIANT == "noqueryterm":
|
||||
env["fish_features"] = "no-query-term"
|
||||
|
||||
master, slave = pty.openpty()
|
||||
# give it a size
|
||||
fcntl.ioctl(master, termios.TIOCSWINSZ, b"\x00\x28\x00\x78\x00\x00\x00\x00")
|
||||
proc = subprocess.Popen(
|
||||
["fish", "-i", "--no-config"],
|
||||
stdin=slave, stdout=slave, stderr=slave, env=env,
|
||||
preexec_fn=lambda: (os.setsid(), fcntl.ioctl(0, termios.TIOCSCTTY, 0)),
|
||||
close_fds=True,
|
||||
)
|
||||
os.close(slave)
|
||||
|
||||
RESPOND = True
|
||||
transcript = []
|
||||
|
||||
def respond(data):
|
||||
"""Answer terminal queries the way a well-behaved terminal would."""
|
||||
out = b""
|
||||
for m in re.finditer(rb"\x1b\[6n", data):
|
||||
out += b"\x1b[40;1R" # CPR
|
||||
for m in re.finditer(rb"\x1b\[0?c", data):
|
||||
out += b"\x1b[?62;22c" # DA1
|
||||
for m in re.finditer(rb"\x1b\[\?u", data):
|
||||
out += b"\x1b[?0u" # kitty flags
|
||||
for m in re.finditer(rb"\x1b\]11;\?", data):
|
||||
out += b"\x1b]11;rgb:2828/2828/2828\x1b\\" # OSC 11
|
||||
for m in re.finditer(rb"\x1b\[>0?q", data):
|
||||
out += b"\x1bP>|ghostty 1.3.1\x1b\\" # XTVERSION
|
||||
for m in re.finditer(rb"\x1bP\+q[0-9a-fA-F;]+\x1b\\", data):
|
||||
out += b"\x1bP0+r\x1b\\" # XTGETTCAP: not found
|
||||
for m in re.finditer(rb"\x1b\[\?(\d+)\$p", data):
|
||||
out += b"\x1b[?%s;2$y" % m.group(1) # DECRQM: reset
|
||||
return out
|
||||
|
||||
def pump(timeout):
|
||||
"""Read fish output for `timeout` seconds, answering queries if RESPOND."""
|
||||
buf = b""
|
||||
end = time.monotonic() + timeout
|
||||
while time.monotonic() < end:
|
||||
r, _, _ = select.select([master], [], [], 0.03)
|
||||
if r:
|
||||
try:
|
||||
data = os.read(master, 65536)
|
||||
except OSError:
|
||||
return buf
|
||||
buf += data
|
||||
transcript.append(data)
|
||||
if RESPOND:
|
||||
reply = respond(data)
|
||||
if reply:
|
||||
os.write(master, reply)
|
||||
return buf
|
||||
|
||||
def send(s):
|
||||
os.write(master, s if isinstance(s, bytes) else s.encode())
|
||||
|
||||
def measure_echo(chars, settle=0.1):
|
||||
"""Send chars one at a time; measure time until each is echoed."""
|
||||
results = []
|
||||
for ch in chars:
|
||||
pump(settle)
|
||||
t0 = time.monotonic()
|
||||
send(ch)
|
||||
deadline = time.monotonic() + 3.0
|
||||
latency = None
|
||||
buf = b""
|
||||
while time.monotonic() < deadline:
|
||||
buf += pump(0.02)
|
||||
if ch.encode() in buf:
|
||||
latency = (time.monotonic() - t0) * 1000
|
||||
break
|
||||
results.append((ch, latency))
|
||||
return results
|
||||
|
||||
print(f"=== variant: {VARIANT} ===")
|
||||
pump(1.2) # startup, queries answered
|
||||
|
||||
send("echo warmup\r")
|
||||
pump(0.8)
|
||||
|
||||
print("phase A: terminal responsive, echo latency per key:")
|
||||
for ch, ms in measure_echo("abcde"):
|
||||
print(f" {ch}: {ms:.0f} ms" if ms else f" {ch}: NO ECHO in 3s")
|
||||
send("\x15") # ctrl-u clear line
|
||||
pump(0.3)
|
||||
|
||||
# Run external command, then STOP answering queries (simulate lost relay)
|
||||
send("sh -c true\r")
|
||||
time.sleep(0.05)
|
||||
RESPOND = False
|
||||
pump(1.0)
|
||||
|
||||
print("phase B: after external command with query replies DROPPED:")
|
||||
for ch, ms in measure_echo("fghij"):
|
||||
print(f" {ch}: {ms:.0f} ms" if ms else f" {ch}: NO ECHO in 3s")
|
||||
send("\x15")
|
||||
pump(0.3)
|
||||
|
||||
# Does it persist across further commands, with responses restored?
|
||||
RESPOND = True
|
||||
send("sh -c true\r")
|
||||
pump(1.0)
|
||||
print("phase C: responses restored, after another external command:")
|
||||
for ch, ms in measure_echo("klmno"):
|
||||
print(f" {ch}: {ms:.0f} ms" if ms else f" {ch}: NO ECHO in 3s")
|
||||
|
||||
send("\x15")
|
||||
pump(0.2)
|
||||
send("exit\r")
|
||||
pump(0.5)
|
||||
try:
|
||||
proc.wait(timeout=3)
|
||||
except subprocess.TimeoutExpired:
|
||||
proc.kill()
|
||||
@@ -42,8 +42,13 @@ in
|
||||
};
|
||||
cmd_duration = {
|
||||
min_time = 5001;
|
||||
show_notifications = if pkgs.stdenv.hostPlatform.isLinux then false else true;
|
||||
min_time_to_notify = 30000;
|
||||
# Must stay off. On macOS the notification blocks the prompt for ~2s,
|
||||
# and fish's $CMD_DURATION keeps its value until the next command
|
||||
# actually runs. So after any long command (every TUI session),
|
||||
# every prompt redraw -- Enter on an empty line, vi mode switches,
|
||||
# repaints -- re-sent the notification and froze the shell for 2s.
|
||||
# That was the "post-TUI typing lag" (see docs/CHANGELOG.md).
|
||||
show_notifications = false;
|
||||
format = "[$duration]($style) ";
|
||||
};
|
||||
custom = {
|
||||
|
||||
@@ -10,31 +10,13 @@ let
|
||||
cfg = config.nmasur.presets.programs.zellij;
|
||||
|
||||
# fish latches feature flags from its startup ENVIRONMENT before config.fish
|
||||
# runs, so the `set -gx fish_features no-query-term` in config.fish only
|
||||
# protects CHILD fish processes — which is why subshells/exec fish were always
|
||||
# immune to the post-TUI typing lag while zellij-spawned pane shells were not.
|
||||
# With query-term latched on, fish sends OSC 11 + CPR + DA1 queries after
|
||||
# every command and waits for replies; if zellij fails to relay even one
|
||||
# reply (a race during TUI teardown or heavy output), that fish process's
|
||||
# reader is PERMANENTLY degraded — reproduced deterministically in a PTY
|
||||
# harness on fish 4.8.1 (see docs/CHANGELOG.md 2026-08-29 and
|
||||
# presets/programs/lag-triage/upstream_repro.py). Spawning fish with the
|
||||
# variable already exported makes every pane shell immune.
|
||||
# Flight recorder for the still-unsolved post-TUI typing lag: sampling the
|
||||
# process CURES the lag (a wedged thread gets kicked loose), so the only way
|
||||
# to observe it is a recorder that is already running before the lag starts.
|
||||
# Armed by `touch ~/.local/state/lag-triage/RECORD`; new panes then log
|
||||
# fish's reader/thread internals to ~/.local/state/lag-triage/flight/.
|
||||
# Remove the RECORD file to disable (zero overhead when off).
|
||||
# runs, so `set -gx fish_features no-query-term` in config.fish only affects
|
||||
# child fish processes. Spawning pane shells with the variable already
|
||||
# exported keeps fish from sending terminal queries (OSC 11, CPR, DA1) that
|
||||
# zellij may fail to relay; on fish 4.8.1 a single missed reply was shown to
|
||||
# degrade that shell's reader for good.
|
||||
fish-no-query-term = pkgs.writeShellScriptBin "fish-no-query-term" ''
|
||||
export fish_features=no-query-term
|
||||
dir="$HOME/.local/state/lag-triage"
|
||||
if [ -e "$dir/RECORD" ]; then
|
||||
mkdir -p "$dir/flight"
|
||||
find "$dir/flight" -type f -mtime +3 -delete 2>/dev/null
|
||||
export FISH_DEBUG='reader,term-support,proc-termowner,iothread,fd-monitor,topic-monitor'
|
||||
export FISH_DEBUG_OUTPUT="$dir/flight/fish-$(date +%Y%m%d-%H%M%S)-$$.log"
|
||||
fi
|
||||
exec ${lib.getExe pkgs.fish} "$@"
|
||||
'';
|
||||
|
||||
@@ -178,6 +160,10 @@ in
|
||||
|
||||
show_startup_tips = false;
|
||||
|
||||
# For nested sessions, automatically descend into the session without
|
||||
# fullscreening it.
|
||||
nested_session_handling = "descend";
|
||||
|
||||
keybinds = {
|
||||
locked = lib.mkIf (pkgs.stdenv.hostPlatform.isLinux && !config.programs.ghostty.enable) {
|
||||
# For servers that I SSH into, use c-a-G to unlock
|
||||
|
||||
@@ -63,7 +63,6 @@ in
|
||||
git.enable = lib.mkDefault true;
|
||||
helix.enable = lib.mkDefault true;
|
||||
jujutsu.enable = lib.mkDefault true;
|
||||
lag-triage.enable = lib.mkDefault true;
|
||||
lazygit.enable = lib.mkDefault true;
|
||||
# neovim.enable = lib.mkDefault true;
|
||||
nix-index.enable = lib.mkDefault true;
|
||||
|
||||
Reference in new issue
Block a user