Revert "fix: make ignored rules fallback (#8706)"

otherlibs/dune-site/test/run.t

@@ -170,7 +170,6 @@ Test with an opam like installation
     ["dune" "install" "-p" name "--create-install-files" name]
   ]
 
-  $ dune build b/b.opam c/c.opam d/d.opam
   $ dune build -p a --promote-install-files=false @install
 
   $ test -e a/a.install

otherlibs/dune-site/test/run_2_9.t

@@ -158,7 +158,6 @@ Test with an opam like installation
     ["dune" "install" "-p" name "--create-install-files" name]
   ]
 
-  $ dune build b/b.opam c/c.opam d/d.opam
   $ dune build -p a --promote-install-files="false" @install
 
   $ test -e a/a.install

src/dune_rules/dune_file.ml

@@ -2472,12 +2472,21 @@ type t =
   ; stanzas : Stanzas.t
   }
 
-let is_promoted_rule version rule =
-  match rule with
-  | Rule { mode; _ } | Menhir_stanza.T { mode; _ } ->
-    let until_clean = if version >= (3, 5) then `Keep else `Ignore in
-    Rule_mode_decoder.is_ignored mode ~until_clean
-  | _ -> false
+let is_promoted_rule =
+  let is_promoted_mode version = function
+    | Rule.Mode.Promote { only = None; lifetime; _ } ->
+      if version >= (3, 5)
+      then (
+        match lifetime with
+        | Unlimited -> true
+        | Until_clean -> false)
+      else true
+    | _ -> false
+  in
+  fun version rule ->
+    match rule with
+    | Rule { mode; _ } | Menhir_stanza.T { mode; _ } -> is_promoted_mode version mode
+    | _ -> false
 ;;
 
 let parse sexps ~dir ~file ~project =

src/dune_rules/rule_mode_decoder.ml

@@ -99,15 +99,3 @@ end
 
 let decode = sum mode_decoders
 let field = field "mode" decode ~default:Rule.Mode.Standard
-
-let is_ignored (mode : Rule.Mode.t) ~until_clean =
-  !Clflags.ignore_promoted_rules
-  &&
-  match mode with
-  | Promote { only = None; lifetime = Unlimited; _ } -> true
-  | Promote { only = None; lifetime = Until_clean; _ } ->
-    (match until_clean with
-     | `Ignore -> true
-     | `Keep -> false)
-  | _ -> false
-;;

src/dune_rules/rule_mode_decoder.mli

@@ -15,11 +15,3 @@ end
 
 val decode : Rule.Mode.t Dune_lang.Decoder.t
 val field : Rule.Mode.t Dune_lang.Decoder.fields_parser
-
-(** [is_ignored mode ~until_clean] will return if a rule with [mode] should be
-    ignored whenever [--ignored-promoted-rules] is set.
-
-    [until_clean] is used to set if [(promote (until-clean))] is ignored as
-    considered by this function. Old versions of dune would incorrectly ignore
-    this, so we need to maintain the old behavior for now. *)
-val is_ignored : Rule.Mode.t -> until_clean:[ `Ignore | `Keep ] -> bool

src/dune_rules/simple_rules.ml

@@ -134,7 +134,9 @@ let user_rule sctx ?extra_bindings ~dir ~expander (rule : Rule.t) =
       else action
     in
     (match rule_kind ~rule ~action with
-     | No_alias -> add_user_rule sctx ~dir ~rule ~action ~expander
+     | No_alias ->
+       let+ targets = add_user_rule sctx ~dir ~rule ~action ~expander in
+       Some targets
      | Aliases_with_targets (aliases, alias_target) ->
        let* () =
          let aliases = List.map ~f:(Alias.make ~dir) aliases in
@@ -143,7 +145,8 @@ let user_rule sctx ?extra_bindings ~dir ~expander (rule : Rule.t) =
              alias
              (Action_builder.path (Path.build alias_target)))
        in
-       add_user_rule sctx ~dir ~rule ~action ~expander
+       let+ targets = add_user_rule sctx ~dir ~rule ~action ~expander in
+       Some targets
      | Aliases_only aliases ->
        let aliases = List.map ~f:(Alias.make ~dir) aliases in
        let* action = interpret_and_add_locks ~expander rule.locks action.build in

src/dune_rules/super_context.ml

@@ -259,11 +259,6 @@ let extend_action t ~dir action =
 ;;
 
 let make_rule t ?mode ?loc ~dir { Action_builder.With_targets.build; targets } =
-  let (mode : Rule.Mode.t option) =
-    match mode with
-    | Some mode when Rule_mode_decoder.is_ignored mode ~until_clean:`Keep -> Some Fallback
-    | _ -> mode
-  in
   let build = extend_action t build ~dir in
   Rule.make
     ?mode
@@ -281,7 +276,7 @@ let add_rule t ?mode ?loc ~dir build =
 let add_rule_get_targets t ?mode ?loc ~dir build =
   let rule = make_rule t ?mode ?loc ~dir build in
   let+ () = Rules.Produce.rule rule in
-  Some rule.targets
+  rule.targets
 ;;
 
 let add_rules t ?loc ~dir builds = Memo.parallel_iter builds ~f:(add_rule ?loc t ~dir)

src/dune_rules/super_context.mli

@@ -47,7 +47,7 @@ val add_rule_get_targets
   -> ?loc:Loc.t
   -> dir:Path.Build.t
   -> Action.Full.t Action_builder.With_targets.t
-  -> Targets.Validated.t option Memo.t
+  -> Targets.Validated.t Memo.t
 
 val add_rules
   :  t

test/blackbox-tests/test-cases/ignore-promoted-internal-rules.t → test/blackbox-tests/test-cases/ignore-promoted-rules-internal-rules.t

@@ -19,4 +19,4 @@ This should not modify the file now
 
   $ dune build --ignore-promoted-rules foo.opam
   $ grep extra foo.opam
-  foobar_extra
+  [1]