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91 lines
1.7 KiB
Nix
91 lines
1.7 KiB
Nix
{ config, pkgs, ... }:
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with pkgs.lib;
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let
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acpiConfDir = pkgs.runCommand "acpi-events" {}
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''
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ensureDir $out
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${
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# Generate a .conf file for each event. (You can't have
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# multiple events in one config file...)
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let f = event:
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''
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fn=$out/${event.name}.conf
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echo "event=${event.event}" > $fn
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echo "action=${pkgs.writeScript "${event.name}.sh" event.action}" >> $fn
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'';
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in pkgs.lib.concatMapStrings f events
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}
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'';
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events = [powerEvent lidEvent acEvent];
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# Called when the power button is pressed.
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powerEvent =
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{ name = "power-button";
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event = "button/power.*";
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action =
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''
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#! ${pkgs.bash}/bin/sh
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'';
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};
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# Called when the laptop lid is opened/closed.
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lidEvent =
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{ name = "lid";
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event = "button/lid.*";
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action =
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''
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#! ${pkgs.bash}/bin/sh
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'';
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};
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# Called when the AC power is connected or disconnected.
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acEvent =
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{ name = "ac-power";
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event = "ac_adapter.*";
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action =
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''
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#! ${pkgs.bash}/bin/sh
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'';
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};
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in
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{
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###### interface
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options = {
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powerManagement = {
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enable = mkOption {
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default = false;
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description = "Whether to enable power management (ACPI daemon)";
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};
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};
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};
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###### implementation
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config = mkIf config.powerManagement.enable {
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jobs.acpid =
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{ description = "ACPI daemon";
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startOn = "udev";
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stopOn = "shutdown";
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exec = "${pkgs.acpid}/sbin/acpid --foreground --confdir ${acpiConfDir}";
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};
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};
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}
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