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Nomarchy/modules/home/timezone.nix
Bernardo Magri d8e1a13d50
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refactor(#107): theme-state.json → state.json, theme-sync → state-sync
The machine flake's git-tracked settings file is system state, not
"theme" only — rename it to state.json. CLI becomes nomarchy-state-sync
with a nomarchy-theme-sync symlink for scripts and muscle memory.

Eval (mkFlake, doctor, lifecycle) still accepts theme-state.json; the
next write migrates to state.json and removes the legacy file.
Documented in MIGRATION.md; drop the CLI alias after release notes.
2026-07-15 11:26:59 +01:00

45 lines
1.8 KiB
Nix

# Auto-timezone, home side: keep the Waybar clock in step with the system
# timezone. Waybar's clock module captures the zone once at construction, so a
# runtime timezone change (automatic-timezoned, nomarchy.system.autoTimezone)
# would NOT show until a relogin. A tiny watcher subscribes to timedate1's
# change signal and reloads Waybar (SIGUSR2 = the same reload state-sync uses),
# so the clock follows your location live. Also catches a manual
# `timedatectl set-timezone`.
#
# Gated on the same in-flake flag the system side reads (settings.autoTimezone,
# exposed via nomarchy.settings) — so it only runs when the feature is on. The
# menu toggle (nomarchy-autotimezone) rebuilds both sides off that one flag.
{ config, lib, pkgs, ... }:
let
cfg = config.nomarchy;
enabled = cfg.waybar.enable && (cfg.settings.autoTimezone or false);
tzWatch = pkgs.writeShellScript "nomarchy-tz-watch" ''
last=$(${pkgs.systemd}/bin/timedatectl show -p Timezone --value 2>/dev/null || true)
${pkgs.dbus}/bin/dbus-monitor --system \
"type='signal',interface='org.freedesktop.DBus.Properties',path='/org/freedesktop/timedate1',member='PropertiesChanged'" \
2>/dev/null |
while read -r _; do
cur=$(${pkgs.systemd}/bin/timedatectl show -p Timezone --value 2>/dev/null || true)
[ "$cur" = "$last" ] && continue
last=$cur
${pkgs.procps}/bin/pkill -SIGUSR2 -x waybar 2>/dev/null || true
done
'';
in
{
systemd.user.services.nomarchy-tz-watch = lib.mkIf enabled {
Unit = {
Description = "Reload Waybar on timezone change (auto-timezone)";
PartOf = [ "graphical-session.target" ];
After = [ "graphical-session.target" ];
};
Service = {
ExecStart = "${tzWatch}";
Restart = "on-failure";
};
Install.WantedBy = [ "graphical-session.target" ];
};
}