diff options
Diffstat (limited to 'nixos/modules/system/boot/systemd.nix')
| -rw-r--r-- | nixos/modules/system/boot/systemd.nix | 217 |
1 files changed, 16 insertions, 201 deletions
diff --git a/nixos/modules/system/boot/systemd.nix b/nixos/modules/system/boot/systemd.nix index 4019af63ad3..ff002d87a12 100644 --- a/nixos/modules/system/boot/systemd.nix +++ b/nixos/modules/system/boot/systemd.nix @@ -11,6 +11,22 @@ let systemd = cfg.package; + inherit (systemdUtils.lib) + makeJobScript + unitConfig + serviceConfig + mountConfig + automountConfig + commonUnitText + targetToUnit + serviceToUnit + socketToUnit + timerToUnit + pathToUnit + mountToUnit + automountToUnit + sliceToUnit; + upstreamSystemUnits = [ # Targets. "basic.target" @@ -209,207 +225,6 @@ let "xdg-desktop-autostart.target" ]; - makeJobScript = name: text: - let - scriptName = replaceChars [ "\\" "@" ] [ "-" "_" ] (shellEscape name); - out = (pkgs.writeShellScriptBin scriptName '' - set -e - ${text} - '').overrideAttrs (_: { - # The derivation name is different from the script file name - # to keep the script file name short to avoid cluttering logs. - name = "unit-script-${scriptName}"; - }); - in "${out}/bin/${scriptName}"; - - unitConfig = { config, options, ... }: { - config = { - unitConfig = - optionalAttrs (config.requires != []) - { Requires = toString config.requires; } - // optionalAttrs (config.wants != []) - { Wants = toString config.wants; } - // optionalAttrs (config.after != []) - { After = toString config.after; } - // optionalAttrs (config.before != []) - { Before = toString config.before; } - // optionalAttrs (config.bindsTo != []) - { BindsTo = toString config.bindsTo; } - // optionalAttrs (config.partOf != []) - { PartOf = toString config.partOf; } - // optionalAttrs (config.conflicts != []) - { Conflicts = toString config.conflicts; } - // optionalAttrs (config.requisite != []) - { Requisite = toString config.requisite; } - // optionalAttrs (config.restartTriggers != []) - { X-Restart-Triggers = toString config.restartTriggers; } - // optionalAttrs (config.reloadTriggers != []) - { X-Reload-Triggers = toString config.reloadTriggers; } - // optionalAttrs (config.description != "") { - Description = config.description; } - // optionalAttrs (config.documentation != []) { - Documentation = toString config.documentation; } - // optionalAttrs (config.onFailure != []) { - OnFailure = toString config.onFailure; } - // optionalAttrs (options.startLimitIntervalSec.isDefined) { - StartLimitIntervalSec = toString config.startLimitIntervalSec; - } // optionalAttrs (options.startLimitBurst.isDefined) { - StartLimitBurst = toString config.startLimitBurst; - }; - }; - }; - - serviceConfig = { name, config, ... }: { - config = mkMerge - [ { # Default path for systemd services. Should be quite minimal. - path = mkAfter - [ pkgs.coreutils - pkgs.findutils - pkgs.gnugrep - pkgs.gnused - systemd - ]; - environment.PATH = "${makeBinPath config.path}:${makeSearchPathOutput "bin" "sbin" config.path}"; - } - (mkIf (config.preStart != "") - { serviceConfig.ExecStartPre = - [ (makeJobScript "${name}-pre-start" config.preStart) ]; - }) - (mkIf (config.script != "") - { serviceConfig.ExecStart = - makeJobScript "${name}-start" config.script + " " + config.scriptArgs; - }) - (mkIf (config.postStart != "") - { serviceConfig.ExecStartPost = - [ (makeJobScript "${name}-post-start" config.postStart) ]; - }) - (mkIf (config.reload != "") - { serviceConfig.ExecReload = - makeJobScript "${name}-reload" config.reload; - }) - (mkIf (config.preStop != "") - { serviceConfig.ExecStop = - makeJobScript "${name}-pre-stop" config.preStop; - }) - (mkIf (config.postStop != "") - { serviceConfig.ExecStopPost = - makeJobScript "${name}-post-stop" config.postStop; - }) - ]; - }; - - mountConfig = { config, ... }: { - config = { - mountConfig = - { What = config.what; - Where = config.where; - } // optionalAttrs (config.type != "") { - Type = config.type; - } // optionalAttrs (config.options != "") { - Options = config.options; - }; - }; - }; - - automountConfig = { config, ... }: { - config = { - automountConfig = - { Where = config.where; - }; - }; - }; - - commonUnitText = def: '' - [Unit] - ${attrsToSection def.unitConfig} - ''; - - targetToUnit = name: def: - { inherit (def) aliases wantedBy requiredBy enable; - text = - '' - [Unit] - ${attrsToSection def.unitConfig} - ''; - }; - - serviceToUnit = name: def: - { inherit (def) aliases wantedBy requiredBy enable; - text = commonUnitText def + - '' - [Service] - ${let env = cfg.globalEnvironment // def.environment; - in concatMapStrings (n: - let s = optionalString (env.${n} != null) - "Environment=${builtins.toJSON "${n}=${env.${n}}"}\n"; - # systemd max line length is now 1MiB - # https://github.com/systemd/systemd/commit/e6dde451a51dc5aaa7f4d98d39b8fe735f73d2af - in if stringLength s >= 1048576 then throw "The value of the environment variable ‘${n}’ in systemd service ‘${name}.service’ is too long." else s) (attrNames env)} - ${if def.reloadIfChanged then '' - X-ReloadIfChanged=true - '' else if !def.restartIfChanged then '' - X-RestartIfChanged=false - '' else ""} - ${optionalString (!def.stopIfChanged) "X-StopIfChanged=false"} - ${attrsToSection def.serviceConfig} - ''; - }; - - socketToUnit = name: def: - { inherit (def) aliases wantedBy requiredBy enable; - text = commonUnitText def + - '' - [Socket] - ${attrsToSection def.socketConfig} - ${concatStringsSep "\n" (map (s: "ListenStream=${s}") def.listenStreams)} - ${concatStringsSep "\n" (map (s: "ListenDatagram=${s}") def.listenDatagrams)} - ''; - }; - - timerToUnit = name: def: - { inherit (def) aliases wantedBy requiredBy enable; - text = commonUnitText def + - '' - [Timer] - ${attrsToSection def.timerConfig} - ''; - }; - - pathToUnit = name: def: - { inherit (def) aliases wantedBy requiredBy enable; - text = commonUnitText def + - '' - [Path] - ${attrsToSection def.pathConfig} - ''; - }; - - mountToUnit = name: def: - { inherit (def) aliases wantedBy requiredBy enable; - text = commonUnitText def + - '' - [Mount] - ${attrsToSection def.mountConfig} - ''; - }; - - automountToUnit = name: def: - { inherit (def) aliases wantedBy requiredBy enable; - text = commonUnitText def + - '' - [Automount] - ${attrsToSection def.automountConfig} - ''; - }; - - sliceToUnit = name: def: - { inherit (def) aliases wantedBy requiredBy enable; - text = commonUnitText def + - '' - [Slice] - ${attrsToSection def.sliceConfig} - ''; - }; logindHandlerType = types.enum [ "ignore" "poweroff" "reboot" "halt" "kexec" "suspend" |