Synit: inline preserves-tools package

nixproc/backends/synit/build-synit-env.nix

@@ -14,9 +14,24 @@ let
   processesArgs = builtins.intersectAttrs processesFormalArgs
     (args // { processManager = "synit"; } // extraParams);
 
+  preserves-tools = if builtins.hasAttr "preserves-tools" pkgs then
+    builtins.trace
+    "not using inlined preserves-tools package because it is already in nixpkgs"
+    pkgs.preserves-tools
+  else
+    pkgs.rustPlatform.buildRustPackage rec {
+      pname = "preserves-tools";
+      version = "4.992.2";
+      src = pkgs.fetchCrate {
+        inherit pname version;
+        hash = "sha256-1IX6jTAH6qWE8X7YtIka5Z4y70obiVotOXzRnu+Z6a0=";
+      };
+      cargoHash = "sha256-D/ZCKRqZtPoCJ9t+5+q1Zm79z3K6Rew4eyuyDiGVGUs=";
+    };
+
   processes = if exprFile == null then { } else processesFun processesArgs;
 in pkgs.runCommand "synit-processes.pr" {
-  nativeBuildInputs = [ pkgs.preserves-tools ];
+  nativeBuildInputs = [ preserves-tools ];
   env.config_inputs =
     pkgs.lib.strings.concatMapStringsSep " " (builtins.getAttr "pkg")
     (builtins.attrValues processes);

nixproc/backends/synit/create-synit-daemon.nix

@@ -1,6 +1,6 @@
-{ lib, runtimeShell, toPreserves, writeScript, writeTextFile }:
+{ lib, busybox, runtimeShell, toPreserves, writeScript, writeTextFile }:
 
-{ name, description, argv, environment, directory
+{ name, description, argv, environment, directory, path
 # Shell instructions that specify how the state of the process should be initialized.
 , initialize ? ""
   # List of services that this configuration depends on.
@@ -12,12 +12,12 @@
 , require-service ? true }:
 
 let
-  #quoteArgs =
-  #  map (arg: ''"${lib.replaceStrings [ ''"'' ] [ ''\"'' ] (toString arg)}"'');
+  env = environment // {
+    PATH = lib.strings.makeBinPath (path ++ [ busybox ]);
+  };
 
   processSpec = {
-    inherit argv;
-    env = environment;
+    inherit argv env;
   } // (lib.attrsets.optionalAttrs (directory != null) { dir = directory; });
 
   serviceName = "<daemon ${name}>";
@@ -50,7 +50,12 @@ in writeTextFile {
       '';
     in ''
       <depends-on ${serviceName} <service-state <daemon ${initializeName}> complete>>
-      <daemon ${initializeName} <one-shot [ "${script}" ]>>
+      <daemon ${initializeName} {
+        argv: [ "${script}" ]
+        env: ${toPreserves env}
+        readyOnStart: #f
+        restart: on-error
+      }>
     ''))
 
     + ''

nixproc/backends/synit/default.nix

@@ -1,4 +1,4 @@
-{ lib, runtimeShell, writeScript, writeTextFile, undaemonize }:
+{ lib, busybox, runtimeShell, writeScript, writeTextFile, undaemonize }:
 
 rec {
   util = import ./util.nix { inherit lib; };
@@ -6,7 +6,7 @@ rec {
   toPreserves = util.toPreserves { };
 
   createSynitDaemon = import ../../backends/synit/create-synit-daemon.nix {
-    inherit lib runtimeShell writeScript writeTextFile;
+    inherit lib busybox runtimeShell writeScript writeTextFile;
     inherit toPreserves;
   };
 

nixproc/backends/synit/generate-synit-service.nix

@@ -6,7 +6,7 @@
 
 let
   generatedTargetSpecificArgs = {
-    inherit name description environment directory dependencies initialize;
+    inherit name description environment directory path dependencies initialize;
 
     argv = map toString (if foregroundProcess != null then
       [ foregroundProcess ] ++ foregroundProcessArgs

nixproc/create-managed-process/universal/create-managed-process-universal.nix

@@ -115,7 +115,7 @@ let
   };
 
   synit = import ../../backends/synit {
-    inherit (pkgs) lib runtimeShell undaemonize writeScript writeTextFile;
+    inherit (pkgs) lib busybox runtimeShell undaemonize writeScript writeTextFile;
   };
 
 in