f3325385c1
nomarchy.system.autoTimezone (off by default): geoclue + automatic- timezoned drive /etc/localtime from your location, so travelling to another zone updates the Waybar clock on its own. Menu-driven, in-flake state (the night-light / keyboard philosophy): the flag is settings.autoTimezone in theme-state.json (git-tracked); a System-menu entry toggles it. Because it's a SYSTEM service — not a user unit it can start/stop instantly like night-light — the toggle (nomarchy-autotimezone, run in a terminal) writes the flag --no-switch then drives `sudo nixos-rebuild` (bakes the service + the time.timeZone override) plus `home-manager switch` (the Waybar-refresh watcher); both sides read the one flag. - modules/nixos/timezone.nix: parses settings.autoTimezone from nomarchy.system.stateFile (like Plymouth), gates geoclue2 + automatic-timezoned, and mkForce-nulls time.timeZone — automatic- timezoned sets it null at normal priority, which collides with the installer's static value (a hard eval error), so force wins and reverts cleanly when disabled. Ships the nomarchy-autotimezone toggle. - modules/home/timezone.nix: a tiny user service watching timedate1's change signal that reloads Waybar (SIGUSR2) on a real zone change, so the clock follows live (Waybar captures the zone at construction). Gated on the same flag via nomarchy.settings.autoTimezone. - rofi menu: "Auto timezone (on/off)" in the System submenu. - option + template example + ROADMAP entry; theme.nix seeds the flag. Eval-verified on (geoclue+daemon on, tz forced null over a static installer value, watcher present) and off (static tz intact, nothing extra); home + system both build green. Needs an on-hardware check (geoclue detection + the SIGUSR2 clock refresh aren't CI-testable). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
88 lines
3.6 KiB
Nix
88 lines
3.6 KiB
Nix
# Automatic timezone detection (opt-in) — the system timezone, and so the
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# Waybar clock, follows your location, so travelling to another zone updates
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# the time on its own. Geoclue feeds `automatic-timezoned`, which drives
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# /etc/localtime at runtime.
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#
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# In-flake state, menu-driven (the keyboard/night-light philosophy): the on/off
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# flag lives in the same theme-state.json under `settings.autoTimezone`
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# (git-tracked, reproducible), written by the System-menu toggle
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# (nomarchy-autotimezone). Because this is a SYSTEM service — not a user unit it
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# can start/stop instantly like night-light — the toggle drives a system rebuild
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# (plus a home switch for the Waybar-refresh watcher in timezone.nix home-side).
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{ config, lib, pkgs, ... }:
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let
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cfg = config.nomarchy.system;
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# Read the same state file the rest of the system side uses (Plymouth too),
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# wired by lib.mkFlake. The flag defaults off when the file is absent/sparse.
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state =
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if cfg.stateFile != null
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then builtins.fromJSON (builtins.readFile cfg.stateFile)
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else { };
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stateEnabled = (state.settings or { }).autoTimezone or false;
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sync = lib.getExe pkgs.nomarchy-theme-sync;
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# Menu/CLI toggle. Runs as the normal user (it owns the flake checkout +
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# writes the state); sudos only the system switch, like sys-update. Writes
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# the in-flake flag, then rebuilds: the system rebuild bakes the service +
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# the time.timeZone override, the home switch installs/removes the Waybar
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# refresh watcher — both read the same flag we just wrote.
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nomarchy-autotimezone = pkgs.writeShellScriptBin "nomarchy-autotimezone" ''
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set -e
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if [ "$(id -u)" -eq 0 ]; then
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echo "nomarchy-autotimezone: run as your normal user (it sudos the rebuild itself)" >&2
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exit 1
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fi
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flake="''${NOMARCHY_PATH:-$HOME/.nomarchy}"
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cur=$(${sync} get settings.autoTimezone 2>/dev/null) || cur=false
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case "''${1:-toggle}" in
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on) new=true ;;
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off) new=false ;;
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toggle) case "$cur" in true|True) new=false ;; *) new=true ;; esac ;;
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status) echo "$cur"; exit 0 ;;
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*) echo "usage: nomarchy-autotimezone [toggle|on|off|status]" >&2; exit 64 ;;
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esac
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${sync} --quiet set settings.autoTimezone "$new" --no-switch
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if [ "$new" = true ]; then
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notify-send "Auto timezone" "Enabling — rebuilding the system…" 2>/dev/null || true
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else
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notify-send "Auto timezone" "Disabling — rebuilding the system…" 2>/dev/null || true
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fi
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sudo nixos-rebuild switch --flake "$flake#default"
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home-manager switch --flake "$flake"
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if [ "$new" = true ]; then
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notify-send "Auto timezone on" "The clock now follows your location." 2>/dev/null || true
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else
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notify-send "Auto timezone off" "Back to the fixed timezone in system.nix." 2>/dev/null || true
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fi
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'';
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in
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{
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config = lib.mkMerge [
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{
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# Shipped unconditionally so the menu can enable the feature even while
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# it's off. Track the in-flake flag; mkDefault so a hand-set
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# nomarchy.system.autoTimezone.enable in system.nix still wins.
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environment.systemPackages = [ nomarchy-autotimezone ];
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nomarchy.system.autoTimezone.enable = lib.mkDefault stateEnabled;
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}
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(lib.mkIf cfg.autoTimezone.enable {
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services.geoclue2.enable = true;
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services.automatic-timezoned.enable = true;
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# A runtime timezone needs /etc/localtime writable. automatic-timezoned
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# sets time.timeZone = null itself, but the installer writes a static
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# value at normal priority, which would collide (a hard eval error) —
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# mkForce null overrides both and resolves cleanly.
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time.timeZone = lib.mkForce null;
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})
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];
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}
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