Enable native process manager for flake integration users

docs/src/reference/options.md

@@ -25015,7 +25015,7 @@ one of “hivemind”, “honcho”, “mprocs”, “native”, “overmind”,
 
 
 *Default:*
-` native ` for devenv 2.0+, ` process-compose ` otherwise
+` native ` for devenv 2.0+ or flake integration, ` process-compose ` otherwise
 
 
 

src/modules/process-managers/native.nix

@@ -193,13 +193,16 @@ in
         config.processes
     ));
 
-    # The actual process manager command will be invoked from devenv.rs
-    # We just need to provide the configuration via procfileScript
+    # In flake mode, the native process manager runs via devenv-tasks binary.
+    # The command backgrounds the process so procfileScript can manage it.
     process.manager.command = lib.mkDefault ''
-      # Native process manager is invoked directly from devenv up
-      # This script should not be reached
-      echo "Native process manager should be invoked from devenv up" >&2
-      exit 1
+      ${config.task.package}/bin/devenv-tasks run \
+        --task-file ${config.task.config} \
+        --mode all \
+        --cache-dir ${lib.escapeShellArg config.devenv.dotfile} \
+        --runtime-dir ${lib.escapeShellArg config.devenv.runtime} \
+        ${lib.concatMapStringsSep " " (name: "devenv:processes:${name}")
+          (lib.attrNames (lib.filterAttrs (_: p: p.start.enable) config.processes))} &
     '';
   };
 }

src/modules/processes.nix

@@ -349,8 +349,10 @@ in
         default =
           if config.devenv.cli.version != null && lib.versionAtLeast config.devenv.cli.version "2.0"
           then "native"
+          else if config.devenv.flakesIntegration
+          then "native"
           else "process-compose";
-        defaultText = lib.literalMD "`native` for devenv 2.0+, `process-compose` otherwise";
+        defaultText = lib.literalMD "`native` for devenv 2.0+ or flake integration, `process-compose` otherwise";
         example = "process-compose";
       };