From 034a4c5c3be5ffe5f15633214746b05ed69bf548 Mon Sep 17 00:00:00 2001
From: ·𐑑𐑴𐑕𐑑𐑩𐑤
Date: Fri, 2 Jan 2026 18:15:34 +0000
Subject: Silo: make names a folder for the future

---
 lib/input_foreman.ml | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/lib/input_foreman.ml b/lib/input_foreman.ml
index 4c38dcb..dec3f32 100644
--- a/lib/input_foreman.ml
+++ b/lib/input_foreman.ml
@@ -190,6 +190,15 @@ let unlink_or_rm_silo ~(at : [`Path of _ Eio.Path.t | `Name of Name.t]) =
 	| _ ->
 		()
 
+(* TODO: make
+	.silo/{name}/elotl
+	.silo/{name}/milpa
+	.silo/{name}/by-hash
+
+	Where elotl (ear of maize) refers to the one using now & milpa
+	(maizefield) refers to the generation. This is similar to profiles &
+	could allow rollbacks & such.
+*)
 let make_silo_gc_root ~proc_mgr ~name ~store_path =
 	let name = Name.take name in
 	let silo_path = Eio.Path.(Working_directory.(get () / silo_dir)) in
@@ -200,12 +209,20 @@ let make_silo_gc_root ~proc_mgr ~name ~store_path =
 		| _ -> failwith (Fmt.str "%a not a directory" Eio.Path.pp silo_path)
 	end;
 	let path = Eio.Path.(silo_path / name) in
-	Logs.info (fun m -> m "Silo: filling with %s ↦ %s …" name store_path);
-	unlink_or_rm_silo ~at: (`Path path);
+	begin
+		match Eio.Path.kind ~follow: false path with
+		| `Directory -> ()
+		| `Symbolic_link -> Eio.Path.unlink path;
+		| `Regular_file | `Socket -> Eio.Path.rmtree path;
+		| _ -> ()
+	end;
+	Logs.info (fun m -> m "Silo: elotl now %s ↦ %s …" name store_path);
+	let elotl_path = Eio.Path.(path / "elotl") in
+	unlink_or_rm_silo ~at: (`Path elotl_path);
 	Eio.Process.run proc_mgr [
 		"nix-store";
 		"--add-root";
-		Eio.Path.native_exn path;
+		Eio.Path.native_exn elotl_path;
 		"--realize";
 		store_path
 	]
-- 
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