861 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			861 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
{ config, lib, pkgs, utils, ... }:
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with utils;
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with lib;
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with import ./systemd-unit-options.nix { inherit config lib; };
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with import ./systemd-lib.nix { inherit config lib pkgs; };
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let
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  cfg = config.systemd;
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  systemd = cfg.package;
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  upstreamSystemUnits =
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    [ # Targets.
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      "basic.target"
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      "busnames.target"
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      "sysinit.target"
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      "sockets.target"
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      "exit.target"
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      "graphical.target"
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      "multi-user.target"
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      "network.target"
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      "network-pre.target"
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      "network-online.target"
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      "nss-lookup.target"
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      "nss-user-lookup.target"
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      "time-sync.target"
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      #"cryptsetup.target"
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      "sigpwr.target"
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      "timers.target"
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      "paths.target"
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      "rpcbind.target"
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      # Rescue mode.
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      "rescue.target"
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      "rescue.service"
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      # Udev.
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      "systemd-udevd-control.socket"
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      "systemd-udevd-kernel.socket"
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      "systemd-udevd.service"
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      "systemd-udev-settle.service"
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      "systemd-udev-trigger.service"
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      # hwdb.bin is managed by NixOS
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      # "systemd-hwdb-update.service"
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      # Consoles.
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      "getty.target"
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      "getty@.service"
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      "serial-getty@.service"
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      "console-getty.service"
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      "container-getty@.service"
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      "systemd-vconsole-setup.service"
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      # Hardware (started by udev when a relevant device is plugged in).
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      "sound.target"
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      "bluetooth.target"
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      "printer.target"
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      "smartcard.target"
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      # Login stuff.
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      "systemd-logind.service"
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      "autovt@.service"
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      "systemd-user-sessions.service"
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      "dbus-org.freedesktop.login1.service"
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      "dbus-org.freedesktop.machine1.service"
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      "org.freedesktop.login1.busname"
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      "org.freedesktop.machine1.busname"
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      "user@.service"
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      # Journal.
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      "systemd-journald.socket"
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      "systemd-journald.service"
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      "systemd-journal-flush.service"
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      "systemd-journal-gatewayd.socket"
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      "systemd-journal-gatewayd.service"
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      "systemd-journal-catalog-update.service"
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      "systemd-journald-audit.socket"
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      "systemd-journald-dev-log.socket"
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      "syslog.socket"
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      # SysV init compatibility.
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      "systemd-initctl.socket"
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      "systemd-initctl.service"
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      # Kernel module loading.
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      "systemd-modules-load.service"
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      "kmod-static-nodes.service"
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      # Filesystems.
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      "systemd-fsck@.service"
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      "systemd-fsck-root.service"
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      "systemd-remount-fs.service"
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      "local-fs.target"
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      "local-fs-pre.target"
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      "remote-fs.target"
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      "remote-fs-pre.target"
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      "swap.target"
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      "dev-hugepages.mount"
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      "dev-mqueue.mount"
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      "proc-sys-fs-binfmt_misc.mount"
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      "sys-fs-fuse-connections.mount"
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      "sys-kernel-config.mount"
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      "sys-kernel-debug.mount"
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      # Maintaining state across reboots.
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      "systemd-random-seed.service"
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      "systemd-backlight@.service"
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      "systemd-rfkill.service"
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      "systemd-rfkill.socket"
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      # Hibernate / suspend.
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      "hibernate.target"
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      "suspend.target"
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      "sleep.target"
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      "hybrid-sleep.target"
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      "systemd-hibernate.service"
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      "systemd-hybrid-sleep.service"
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      "systemd-suspend.service"
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      # Reboot stuff.
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      "reboot.target"
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      "systemd-reboot.service"
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      "poweroff.target"
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      "systemd-poweroff.service"
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      "halt.target"
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      "systemd-halt.service"
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      "shutdown.target"
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      "umount.target"
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      "final.target"
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      "kexec.target"
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      "systemd-kexec.service"
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      "systemd-update-utmp.service"
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      # Password entry.
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      "systemd-ask-password-console.path"
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      "systemd-ask-password-console.service"
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      "systemd-ask-password-wall.path"
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      "systemd-ask-password-wall.service"
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      # Slices / containers.
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      "slices.target"
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      "system.slice"
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      "user.slice"
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      "machine.slice"
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      "machines.target"
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      "systemd-machined.service"
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      "systemd-nspawn@.service"
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      # Temporary file creation / cleanup.
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      "systemd-tmpfiles-clean.service"
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      "systemd-tmpfiles-clean.timer"
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      "systemd-tmpfiles-setup.service"
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      "systemd-tmpfiles-setup-dev.service"
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      # Misc.
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      "org.freedesktop.systemd1.busname"
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      "systemd-sysctl.service"
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      "dbus-org.freedesktop.timedate1.service"
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      "dbus-org.freedesktop.locale1.service"
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      "dbus-org.freedesktop.hostname1.service"
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      "org.freedesktop.timedate1.busname"
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      "org.freedesktop.locale1.busname"
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      "org.freedesktop.hostname1.busname"
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      "systemd-timedated.service"
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      "systemd-localed.service"
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      "systemd-hostnamed.service"
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      "systemd-binfmt.service"
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      "systemd-exit.service"
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    ]
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    ++ cfg.additionalUpstreamSystemUnits;
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  upstreamSystemWants =
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    [ "sysinit.target.wants"
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      "sockets.target.wants"
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      "local-fs.target.wants"
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      "multi-user.target.wants"
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      "timers.target.wants"
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    ];
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  upstreamUserUnits =
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    [ "basic.target"
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      "bluetooth.target"
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      "busnames.target"
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      "default.target"
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      "exit.target"
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      "graphical-session-pre.target"
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      "graphical-session.target"
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      "paths.target"
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      "printer.target"
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      "shutdown.target"
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      "smartcard.target"
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      "sockets.target"
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      "sound.target"
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      "systemd-exit.service"
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      "timers.target"
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    ];
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  boolToString = value: if value then "yes" else "no";
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  makeJobScript = name: text:
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    let mkScriptName =  s: (replaceChars [ "\\" ] [ "-" ] (shellEscape s) );
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        x = pkgs.writeTextFile { name = "unit-script"; executable = true; destination = "/bin/${mkScriptName name}"; inherit text; };
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    in "${x}/bin/${mkScriptName name}";
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  unitConfig = { name, config, ... }: {
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    config = {
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      unitConfig =
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        optionalAttrs (config.requires != [])
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          { Requires = toString config.requires; }
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        // optionalAttrs (config.wants != [])
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          { Wants = toString config.wants; }
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        // optionalAttrs (config.after != [])
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          { After = toString config.after; }
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        // optionalAttrs (config.before != [])
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          { Before = toString config.before; }
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        // optionalAttrs (config.bindsTo != [])
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          { BindsTo = toString config.bindsTo; }
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        // optionalAttrs (config.partOf != [])
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          { PartOf = toString config.partOf; }
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        // optionalAttrs (config.conflicts != [])
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          { Conflicts = toString config.conflicts; }
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        // optionalAttrs (config.requisite != [])
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          { Requisite = toString config.requisite; }
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        // optionalAttrs (config.restartTriggers != [])
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          { X-Restart-Triggers = toString config.restartTriggers; }
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        // optionalAttrs (config.description != "") {
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          Description = config.description; }
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        // optionalAttrs (config.documentation != []) {
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          Documentation = toString config.documentation; }
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        // optionalAttrs (config.onFailure != []) {
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          OnFailure = toString config.onFailure;
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        };
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    };
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  };
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  serviceConfig = { name, config, ... }: {
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    config = mkMerge
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      [ { # Default path for systemd services.  Should be quite minimal.
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          path =
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            [ pkgs.coreutils
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              pkgs.findutils
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              pkgs.gnugrep
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              pkgs.gnused
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              systemd
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            ];
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          environment.PATH = config.path;
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        }
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        (mkIf (config.preStart != "")
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          { serviceConfig.ExecStartPre = makeJobScript "${name}-pre-start" ''
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              #! ${pkgs.stdenv.shell} -e
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              ${config.preStart}
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            '';
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          })
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        (mkIf (config.script != "")
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          { serviceConfig.ExecStart = makeJobScript "${name}-start" ''
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              #! ${pkgs.stdenv.shell} -e
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              ${config.script}
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            '' + " " + config.scriptArgs;
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          })
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        (mkIf (config.postStart != "")
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          { serviceConfig.ExecStartPost = makeJobScript "${name}-post-start" ''
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              #! ${pkgs.stdenv.shell} -e
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              ${config.postStart}
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            '';
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          })
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        (mkIf (config.reload != "")
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          { serviceConfig.ExecReload = makeJobScript "${name}-reload" ''
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              #! ${pkgs.stdenv.shell} -e
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              ${config.reload}
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            '';
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          })
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        (mkIf (config.preStop != "")
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          { serviceConfig.ExecStop = makeJobScript "${name}-pre-stop" ''
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              #! ${pkgs.stdenv.shell} -e
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              ${config.preStop}
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            '';
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          })
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        (mkIf (config.postStop != "")
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          { serviceConfig.ExecStopPost = makeJobScript "${name}-post-stop" ''
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              #! ${pkgs.stdenv.shell} -e
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              ${config.postStop}
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            '';
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          })
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      ];
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  };
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  mountConfig = { name, config, ... }: {
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    config = {
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      mountConfig =
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        { What = config.what;
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          Where = config.where;
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        } // optionalAttrs (config.type != "") {
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          Type = config.type;
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        } // optionalAttrs (config.options != "") {
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          Options = config.options;
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        };
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    };
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  };
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  automountConfig = { name, config, ... }: {
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    config = {
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      automountConfig =
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        { Where = config.where;
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        };
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    };
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  };
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  commonUnitText = def: ''
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      [Unit]
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      ${attrsToSection def.unitConfig}
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    '';
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  targetToUnit = name: def:
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    { inherit (def) aliases wantedBy requiredBy enable;
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      text =
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        ''
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          [Unit]
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          ${attrsToSection def.unitConfig}
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        '';
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    };
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  serviceToUnit = name: def:
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    { inherit (def) aliases wantedBy requiredBy enable;
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      text = commonUnitText def +
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        ''
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          [Service]
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          ${let env = cfg.globalEnvironment // def.environment;
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            in concatMapStrings (n:
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              let s = optionalString (env."${n}" != null)
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                "Environment=\"${n}=${env.${n}}\"\n";
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              in if stringLength s >= 2048 then throw "The value of the environment variable ‘${n}’ in systemd service ‘${name}.service’ is too long." else s) (attrNames env)}
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          ${if def.reloadIfChanged then ''
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            X-ReloadIfChanged=true
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          '' else if !def.restartIfChanged then ''
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            X-RestartIfChanged=false
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          '' else ""}
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          ${optionalString (!def.stopIfChanged) "X-StopIfChanged=false"}
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          ${attrsToSection def.serviceConfig}
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        '';
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    };
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  socketToUnit = name: def:
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    { inherit (def) aliases wantedBy requiredBy enable;
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      text = commonUnitText def +
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        ''
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          [Socket]
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          ${attrsToSection def.socketConfig}
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          ${concatStringsSep "\n" (map (s: "ListenStream=${s}") def.listenStreams)}
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        '';
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    };
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  timerToUnit = name: def:
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    { inherit (def) aliases wantedBy requiredBy enable;
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      text = commonUnitText def +
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        ''
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          [Timer]
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          ${attrsToSection def.timerConfig}
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        '';
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    };
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  pathToUnit = name: def:
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    { inherit (def) aliases wantedBy requiredBy enable;
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      text = commonUnitText def +
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        ''
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          [Path]
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          ${attrsToSection def.pathConfig}
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        '';
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    };
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  mountToUnit = name: def:
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    { inherit (def) aliases wantedBy requiredBy enable;
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      text = commonUnitText def +
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        ''
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          [Mount]
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          ${attrsToSection def.mountConfig}
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        '';
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    };
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  automountToUnit = name: def:
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    { inherit (def) aliases wantedBy requiredBy enable;
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      text = commonUnitText def +
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        ''
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          [Automount]
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          ${attrsToSection def.automountConfig}
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        '';
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    };
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  sliceToUnit = name: def:
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    { inherit (def) aliases wantedBy requiredBy enable;
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      text = commonUnitText def +
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        ''
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          [Slice]
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          ${attrsToSection def.sliceConfig}
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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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    systemd.package = mkOption {
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      default = pkgs.systemd;
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      defaultText = "pkgs.systemd";
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      type = types.package;
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      description = "The systemd package.";
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    };
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    systemd.units = mkOption {
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      description = "Definition of systemd units.";
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      default = {};
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      type = with types; attrsOf (submodule (
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        { name, config, ... }:
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        { options = concreteUnitOptions;
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          config = {
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            unit = mkDefault (makeUnit name config);
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          };
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        }));
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    };
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    systemd.packages = mkOption {
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      default = [];
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      type = types.listOf types.package;
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      description = "Packages providing systemd units.";
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    };
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    systemd.targets = mkOption {
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      default = {};
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      type = with types; attrsOf (submodule [ { options = targetOptions; } unitConfig] );
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      description = "Definition of systemd target units.";
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    };
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    systemd.services = mkOption {
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      default = {};
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      type = with types; attrsOf (submodule [ { options = serviceOptions; } unitConfig serviceConfig ]);
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      description = "Definition of systemd service units.";
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    };
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    systemd.sockets = mkOption {
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      default = {};
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      type = with types; attrsOf (submodule [ { options = socketOptions; } unitConfig ]);
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      description = "Definition of systemd socket units.";
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    };
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    systemd.timers = mkOption {
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      default = {};
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      type = with types; attrsOf (submodule [ { options = timerOptions; } unitConfig ]);
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      description = "Definition of systemd timer units.";
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    };
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    systemd.paths = mkOption {
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      default = {};
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      type = with types; attrsOf (submodule [ { options = pathOptions; } unitConfig ]);
 | 
						||
      description = "Definition of systemd path units.";
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.mounts = mkOption {
 | 
						||
      default = [];
 | 
						||
      type = with types; listOf (submodule [ { options = mountOptions; } unitConfig mountConfig ]);
 | 
						||
      description = ''
 | 
						||
        Definition of systemd mount units.
 | 
						||
        This is a list instead of an attrSet, because systemd mandates the names to be derived from
 | 
						||
        the 'where' attribute.
 | 
						||
      '';
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.automounts = mkOption {
 | 
						||
      default = [];
 | 
						||
      type = with types; listOf (submodule [ { options = automountOptions; } unitConfig automountConfig ]);
 | 
						||
      description = ''
 | 
						||
        Definition of systemd automount units.
 | 
						||
        This is a list instead of an attrSet, because systemd mandates the names to be derived from
 | 
						||
        the 'where' attribute.
 | 
						||
      '';
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.slices = mkOption {
 | 
						||
      default = {};
 | 
						||
      type = with types; attrsOf (submodule [ { options = sliceOptions; } unitConfig] );
 | 
						||
      description = "Definition of slice configurations.";
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.generators = mkOption {
 | 
						||
      type = types.attrsOf types.path;
 | 
						||
      default = {};
 | 
						||
      example = { "systemd-gpt-auto-generator" = "/dev/null"; };
 | 
						||
      description = ''
 | 
						||
        Definition of systemd generators.
 | 
						||
        For each <literal>NAME = VALUE</literal> pair of the attrSet, a link is generated from
 | 
						||
        <literal>/etc/systemd/system-generators/NAME</literal> to <literal>VALUE</literal>.
 | 
						||
      '';
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.generator-packages = mkOption {
 | 
						||
      default = [];
 | 
						||
      type = types.listOf types.package;
 | 
						||
      example = literalExample "[ pkgs.systemd-cryptsetup-generator ]";
 | 
						||
      description = "Packages providing systemd generators.";
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.defaultUnit = mkOption {
 | 
						||
      default = "multi-user.target";
 | 
						||
      type = types.str;
 | 
						||
      description = "Default unit started when the system boots.";
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.ctrlAltDelUnit = mkOption {
 | 
						||
      default = "reboot.target";
 | 
						||
      type = types.str;
 | 
						||
      example = "poweroff.target";
 | 
						||
      description = ''
 | 
						||
        Target that should be started when Ctrl-Alt-Delete is pressed.
 | 
						||
      '';
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.globalEnvironment = mkOption {
 | 
						||
      type = types.attrs;
 | 
						||
      default = {};
 | 
						||
      example = { TZ = "CET"; };
 | 
						||
      description = ''
 | 
						||
        Environment variables passed to <emphasis>all</emphasis> systemd units.
 | 
						||
      '';
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.extraConfig = mkOption {
 | 
						||
      default = "";
 | 
						||
      type = types.lines;
 | 
						||
      example = "DefaultLimitCORE=infinity";
 | 
						||
      description = ''
 | 
						||
        Extra config options for systemd. See man systemd-system.conf for
 | 
						||
        available options.
 | 
						||
      '';
 | 
						||
    };
 | 
						||
 | 
						||
    services.journald.console = mkOption {
 | 
						||
      default = "";
 | 
						||
      type = types.str;
 | 
						||
      description = "If non-empty, write log messages to the specified TTY device.";
 | 
						||
    };
 | 
						||
 | 
						||
    services.journald.rateLimitInterval = mkOption {
 | 
						||
      default = "10s";
 | 
						||
      type = types.str;
 | 
						||
      description = ''
 | 
						||
        Configures the rate limiting interval that is applied to all
 | 
						||
        messages generated on the system. This rate limiting is applied
 | 
						||
        per-service, so that two services which log do not interfere with
 | 
						||
        each other's limit. The value may be specified in the following
 | 
						||
        units: s, min, h, ms, us. To turn off any kind of rate limiting,
 | 
						||
        set either value to 0.
 | 
						||
      '';
 | 
						||
    };
 | 
						||
 | 
						||
    services.journald.rateLimitBurst = mkOption {
 | 
						||
      default = 100;
 | 
						||
      type = types.int;
 | 
						||
      description = ''
 | 
						||
        Configures the rate limiting burst limit (number of messages per
 | 
						||
        interval) that is applied to all messages generated on the system.
 | 
						||
        This rate limiting is applied per-service, so that two services
 | 
						||
        which log do not interfere with each other's limit.
 | 
						||
      '';
 | 
						||
    };
 | 
						||
 | 
						||
    services.journald.extraConfig = mkOption {
 | 
						||
      default = "";
 | 
						||
      type = types.lines;
 | 
						||
      example = "Storage=volatile";
 | 
						||
      description = ''
 | 
						||
        Extra config options for systemd-journald. See man journald.conf
 | 
						||
        for available options.
 | 
						||
      '';
 | 
						||
    };
 | 
						||
 | 
						||
    services.journald.enableHttpGateway = mkOption {
 | 
						||
      default = false;
 | 
						||
      type = types.bool;
 | 
						||
      description = ''
 | 
						||
        Whether to enable the HTTP gateway to the journal.
 | 
						||
      '';
 | 
						||
    };
 | 
						||
 | 
						||
    services.logind.extraConfig = mkOption {
 | 
						||
      default = "";
 | 
						||
      type = types.lines;
 | 
						||
      example = "HandleLidSwitch=ignore";
 | 
						||
      description = ''
 | 
						||
        Extra config options for systemd-logind. See man logind.conf for
 | 
						||
        available options.
 | 
						||
      '';
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.user.extraConfig = mkOption {
 | 
						||
      default = "";
 | 
						||
      type = types.lines;
 | 
						||
      example = "DefaultCPUAccounting=yes";
 | 
						||
      description = ''
 | 
						||
        Extra config options for systemd user instances. See man systemd-user.conf for
 | 
						||
        available options.
 | 
						||
      '';
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.tmpfiles.rules = mkOption {
 | 
						||
      type = types.listOf types.str;
 | 
						||
      default = [];
 | 
						||
      example = [ "d /tmp 1777 root root 10d" ];
 | 
						||
      description = ''
 | 
						||
        Rules for creating and cleaning up temporary files
 | 
						||
        automatically. See
 | 
						||
        <citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 | 
						||
        for the exact format. You should not use this option to create
 | 
						||
        files required by systemd services, since there is no
 | 
						||
        guarantee that <command>systemd-tmpfiles</command> runs when
 | 
						||
        the system is reconfigured using
 | 
						||
        <command>nixos-rebuild</command>.
 | 
						||
      '';
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.user.units = mkOption {
 | 
						||
      description = "Definition of systemd per-user units.";
 | 
						||
      default = {};
 | 
						||
      type = with types; attrsOf (submodule (
 | 
						||
        { name, config, ... }:
 | 
						||
        { options = concreteUnitOptions;
 | 
						||
          config = {
 | 
						||
            unit = mkDefault (makeUnit name config);
 | 
						||
          };
 | 
						||
        }));
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.user.services = mkOption {
 | 
						||
      default = {};
 | 
						||
      type = with types; attrsOf (submodule [ { options = serviceOptions; } unitConfig serviceConfig ] );
 | 
						||
      description = "Definition of systemd per-user service units.";
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.user.timers = mkOption {
 | 
						||
      default = {};
 | 
						||
      type = with types; attrsOf (submodule [ { options = timerOptions; } unitConfig ] );
 | 
						||
      description = "Definition of systemd per-user timer units.";
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.user.sockets = mkOption {
 | 
						||
      default = {};
 | 
						||
      type = with types; attrsOf (submodule [ { options = socketOptions; } unitConfig ] );
 | 
						||
      description = "Definition of systemd per-user socket units.";
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.user.targets = mkOption {
 | 
						||
      default = {};
 | 
						||
      type = with types; attrsOf (submodule [ { options = targetOptions; } unitConfig] );
 | 
						||
      description = "Definition of systemd per-user target units.";
 | 
						||
    };
 | 
						||
 | 
						||
    systemd.additionalUpstreamSystemUnits = mkOption {
 | 
						||
      default = [ ];
 | 
						||
      type = types.listOf types.str;
 | 
						||
      example = [ "debug-shell.service" "systemd-quotacheck.service" ];
 | 
						||
      description = ''
 | 
						||
        Additional units shipped with systemd that shall be enabled.
 | 
						||
      '';
 | 
						||
    };
 | 
						||
 | 
						||
  };
 | 
						||
 | 
						||
 | 
						||
  ###### implementation
 | 
						||
 | 
						||
  config = {
 | 
						||
 | 
						||
    warnings = concatLists (mapAttrsToList (name: service:
 | 
						||
      optional (service.serviceConfig.Type or "" == "oneshot" && service.serviceConfig.Restart or "no" != "no")
 | 
						||
        "Service ‘${name}.service’ with ‘Type=oneshot’ must have ‘Restart=no’") cfg.services);
 | 
						||
 | 
						||
    system.build.units = cfg.units;
 | 
						||
 | 
						||
    environment.systemPackages = [ systemd ];
 | 
						||
 | 
						||
    environment.etc = let
 | 
						||
      # generate contents for /etc/systemd/system-generators from
 | 
						||
      # systemd.generators and systemd.generator-packages
 | 
						||
      generators = pkgs.runCommand "system-generators" { packages = cfg.generator-packages; } ''
 | 
						||
        mkdir -p $out
 | 
						||
        for package in $packages
 | 
						||
        do
 | 
						||
          ln -s $package/lib/systemd/system-generators/* $out/
 | 
						||
        done;
 | 
						||
        ${concatStrings (mapAttrsToList (generator: target: "ln -s ${target} $out/${generator};\n") cfg.generators)}
 | 
						||
      '';
 | 
						||
    in ({
 | 
						||
      "systemd/system".source = generateUnits "system" cfg.units upstreamSystemUnits upstreamSystemWants;
 | 
						||
 | 
						||
      "systemd/user".source = generateUnits "user" cfg.user.units upstreamUserUnits [];
 | 
						||
 | 
						||
      "systemd/system.conf".text = ''
 | 
						||
        [Manager]
 | 
						||
        ${config.systemd.extraConfig}
 | 
						||
      '';
 | 
						||
 | 
						||
      "systemd/user.conf".text = ''
 | 
						||
        [Manager]
 | 
						||
        ${config.systemd.user.extraConfig}
 | 
						||
      '';
 | 
						||
 | 
						||
      "systemd/journald.conf".text = ''
 | 
						||
        [Journal]
 | 
						||
        RateLimitInterval=${config.services.journald.rateLimitInterval}
 | 
						||
        RateLimitBurst=${toString config.services.journald.rateLimitBurst}
 | 
						||
        ${optionalString (config.services.journald.console != "") ''
 | 
						||
          ForwardToConsole=yes
 | 
						||
          TTYPath=${config.services.journald.console}
 | 
						||
        ''}
 | 
						||
        ${config.services.journald.extraConfig}
 | 
						||
      '';
 | 
						||
 | 
						||
      "systemd/logind.conf".text = ''
 | 
						||
        [Login]
 | 
						||
        KillUserProcesses=no
 | 
						||
        ${config.services.logind.extraConfig}
 | 
						||
      '';
 | 
						||
 | 
						||
      "systemd/sleep.conf".text = ''
 | 
						||
        [Sleep]
 | 
						||
      '';
 | 
						||
 | 
						||
      "tmpfiles.d/systemd.conf".source = "${systemd}/example/tmpfiles.d/systemd.conf";
 | 
						||
      "tmpfiles.d/x11.conf".source = "${systemd}/example/tmpfiles.d/x11.conf";
 | 
						||
 | 
						||
      "tmpfiles.d/nixos.conf".text = ''
 | 
						||
        # This file is created automatically and should not be modified.
 | 
						||
        # Please change the option ‘systemd.tmpfiles.rules’ instead.
 | 
						||
 | 
						||
        ${concatStringsSep "\n" cfg.tmpfiles.rules}
 | 
						||
      '';
 | 
						||
 | 
						||
      "systemd/system-generators" = { source = generators; };
 | 
						||
    });
 | 
						||
 | 
						||
    services.dbus.enable = true;
 | 
						||
 | 
						||
    system.activationScripts.systemd = stringAfter [ "groups" ]
 | 
						||
      ''
 | 
						||
        mkdir -m 0755 -p /var/lib/udev
 | 
						||
 | 
						||
        if ! [ -e /etc/machine-id ]; then
 | 
						||
          ${systemd}/bin/systemd-machine-id-setup
 | 
						||
        fi
 | 
						||
 | 
						||
        # Keep a persistent journal. Note that systemd-tmpfiles will
 | 
						||
        # set proper ownership/permissions.
 | 
						||
        # FIXME: revert to 0700 with systemd v233.
 | 
						||
        mkdir -m 0750 -p /var/log/journal
 | 
						||
      '';
 | 
						||
 | 
						||
    users.extraUsers.systemd-network.uid = config.ids.uids.systemd-network;
 | 
						||
    users.extraGroups.systemd-network.gid = config.ids.gids.systemd-network;
 | 
						||
    users.extraUsers.systemd-resolve.uid = config.ids.uids.systemd-resolve;
 | 
						||
    users.extraGroups.systemd-resolve.gid = config.ids.gids.systemd-resolve;
 | 
						||
 | 
						||
    # Target for ‘charon send-keys’ to hook into.
 | 
						||
    users.extraGroups.keys.gid = config.ids.gids.keys;
 | 
						||
 | 
						||
    systemd.targets.keys =
 | 
						||
      { description = "Security Keys";
 | 
						||
        unitConfig.X-StopOnReconfiguration = true;
 | 
						||
      };
 | 
						||
 | 
						||
    systemd.units =
 | 
						||
      mapAttrs' (n: v: nameValuePair "${n}.target" (targetToUnit n v)) cfg.targets
 | 
						||
      // mapAttrs' (n: v: nameValuePair "${n}.service" (serviceToUnit n v)) cfg.services
 | 
						||
      // mapAttrs' (n: v: nameValuePair "${n}.socket" (socketToUnit n v)) cfg.sockets
 | 
						||
      // mapAttrs' (n: v: nameValuePair "${n}.timer" (timerToUnit n v)) cfg.timers
 | 
						||
      // mapAttrs' (n: v: nameValuePair "${n}.path" (pathToUnit n v)) cfg.paths
 | 
						||
      // mapAttrs' (n: v: nameValuePair "${n}.slice" (sliceToUnit n v)) cfg.slices
 | 
						||
      // listToAttrs (map
 | 
						||
                   (v: let n = escapeSystemdPath v.where;
 | 
						||
                       in nameValuePair "${n}.mount" (mountToUnit n v)) cfg.mounts)
 | 
						||
      // listToAttrs (map
 | 
						||
                   (v: let n = escapeSystemdPath v.where;
 | 
						||
                       in nameValuePair "${n}.automount" (automountToUnit n v)) cfg.automounts);
 | 
						||
 | 
						||
    systemd.user.units =
 | 
						||
         mapAttrs' (n: v: nameValuePair "${n}.service" (serviceToUnit n v)) cfg.user.services
 | 
						||
      // mapAttrs' (n: v: nameValuePair "${n}.socket"  (socketToUnit  n v)) cfg.user.sockets
 | 
						||
      // mapAttrs' (n: v: nameValuePair "${n}.target"  (targetToUnit  n v)) cfg.user.targets
 | 
						||
      // mapAttrs' (n: v: nameValuePair "${n}.timer"   (timerToUnit   n v)) cfg.user.timers;
 | 
						||
 | 
						||
    system.requiredKernelConfig = map config.lib.kernelConfig.isEnabled
 | 
						||
      [ "DEVTMPFS" "CGROUPS" "INOTIFY_USER" "SIGNALFD" "TIMERFD" "EPOLL" "NET"
 | 
						||
        "SYSFS" "PROC_FS" "FHANDLE" "DMIID" "AUTOFS4_FS" "TMPFS_POSIX_ACL"
 | 
						||
        "TMPFS_XATTR" "SECCOMP"
 | 
						||
      ];
 | 
						||
 | 
						||
    users.extraGroups.systemd-journal.gid = config.ids.gids.systemd-journal;
 | 
						||
    users.extraUsers.systemd-journal-gateway.uid = config.ids.uids.systemd-journal-gateway;
 | 
						||
    users.extraGroups.systemd-journal-gateway.gid = config.ids.gids.systemd-journal-gateway;
 | 
						||
 | 
						||
    # Generate timer units for all services that have a ‘startAt’ value.
 | 
						||
    systemd.timers =
 | 
						||
      mapAttrs (name: service:
 | 
						||
        { wantedBy = [ "timers.target" ];
 | 
						||
          timerConfig.OnCalendar = service.startAt;
 | 
						||
        })
 | 
						||
        (filterAttrs (name: service: service.enable && service.startAt != []) cfg.services);
 | 
						||
 | 
						||
    # Generate timer units for all services that have a ‘startAt’ value.
 | 
						||
    systemd.user.timers =
 | 
						||
      mapAttrs (name: service:
 | 
						||
        { wantedBy = [ "timers.target" ];
 | 
						||
          timerConfig.OnCalendar = service.startAt;
 | 
						||
        })
 | 
						||
        (filterAttrs (name: service: service.startAt != []) cfg.user.services);
 | 
						||
 | 
						||
    systemd.sockets.systemd-journal-gatewayd.wantedBy =
 | 
						||
      optional config.services.journald.enableHttpGateway "sockets.target";
 | 
						||
 | 
						||
    # Provide the systemd-user PAM service, required to run systemd
 | 
						||
    # user instances.
 | 
						||
    security.pam.services.systemd-user =
 | 
						||
      { # Ensure that pam_systemd gets included. This is special-cased
 | 
						||
        # in systemd to provide XDG_RUNTIME_DIR.
 | 
						||
        startSession = true;
 | 
						||
      };
 | 
						||
 | 
						||
    # Some overrides to upstream units.
 | 
						||
    systemd.services."systemd-backlight@".restartIfChanged = false;
 | 
						||
    systemd.services."systemd-rfkill@".restartIfChanged = false;
 | 
						||
    systemd.services."user@".restartIfChanged = false;
 | 
						||
    systemd.services.systemd-journal-flush.restartIfChanged = false;
 | 
						||
    systemd.services.systemd-random-seed.restartIfChanged = false;
 | 
						||
    systemd.services.systemd-remount-fs.restartIfChanged = false;
 | 
						||
    systemd.services.systemd-update-utmp.restartIfChanged = false;
 | 
						||
    systemd.services.systemd-user-sessions.restartIfChanged = false; # Restart kills all active sessions.
 | 
						||
    systemd.services.systemd-logind.restartTriggers = [ config.environment.etc."systemd/logind.conf".source ];
 | 
						||
    systemd.services.systemd-logind.stopIfChanged = false;
 | 
						||
    systemd.services.systemd-journald.restartTriggers = [ config.environment.etc."systemd/journald.conf".source ];
 | 
						||
    systemd.services.systemd-journald.stopIfChanged = false;
 | 
						||
    systemd.targets.local-fs.unitConfig.X-StopOnReconfiguration = true;
 | 
						||
    systemd.targets.remote-fs.unitConfig.X-StopOnReconfiguration = true;
 | 
						||
    systemd.services.systemd-binfmt.wants = [ "proc-sys-fs-binfmt_misc.automount" ];
 | 
						||
 | 
						||
    # Don't bother with certain units in containers.
 | 
						||
    systemd.services.systemd-remount-fs.unitConfig.ConditionVirtualization = "!container";
 | 
						||
    systemd.services.systemd-random-seed.unitConfig.ConditionVirtualization = "!container";
 | 
						||
 | 
						||
  };
 | 
						||
 | 
						||
  # FIXME: Remove these eventually.
 | 
						||
  imports =
 | 
						||
    [ (mkRenamedOptionModule [ "boot" "systemd" "sockets" ] [ "systemd" "sockets" ])
 | 
						||
      (mkRenamedOptionModule [ "boot" "systemd" "targets" ] [ "systemd" "targets" ])
 | 
						||
      (mkRenamedOptionModule [ "boot" "systemd" "services" ] [ "systemd" "services" ])
 | 
						||
    ];
 | 
						||
 | 
						||
}
 |