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4eb1c549a9
This ensures that activation fails early if there are any `/etc` files with unexpected state, rather than leaving the system half-activated.
46 lines
1.3 KiB
Nix
46 lines
1.3 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.activate-system;
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in
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{
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options = {
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services.activate-system.enable = mkOption {
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type = types.bool;
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default = true;
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description = lib.mdDoc "Whether to activate system at boot time.";
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};
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};
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config = mkIf cfg.enable {
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launchd.daemons.activate-system = {
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script = ''
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set -e
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set -o pipefail
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export PATH="${pkgs.gnugrep}/bin:${pkgs.coreutils}/bin:@out@/sw/bin:/usr/bin:/bin:/usr/sbin:/sbin"
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systemConfig=$(cat ${config.system.profile}/systemConfig)
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# Make this configuration the current configuration.
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# The readlink is there to ensure that when $systemConfig = /system
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# (which is a symlink to the store), /run/current-system is still
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# used as a garbage collection root.
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ln -sfn $(cat ${config.system.profile}/systemConfig) /run/current-system
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# Prevent the current configuration from being garbage-collected.
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ln -sfn /run/current-system /nix/var/nix/gcroots/current-system
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${config.system.activationScripts.etcChecks.text}
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${config.system.activationScripts.etc.text}
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${config.system.activationScripts.keyboard.text}
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'';
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serviceConfig.RunAtLoad = true;
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serviceConfig.KeepAlive.SuccessfulExit = false;
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};
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};
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}
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