refactor: drop [~distribute] in [is_useful_to]

src/dune_engine/action.ml

@@ -287,7 +287,7 @@ type is_useful =
   | Clearly_not
   | Maybe
 
-let is_useful_to distribute memoize =
+let is_useful_to memoize =
   let rec loop t =
     match t with
     | Chdir (_, t) -> loop t
@@ -301,26 +301,26 @@ let is_useful_to distribute memoize =
     | Copy _ -> memoize
     | Symlink _ -> false
     | Hardlink _ -> false
-    | Write_file _ -> distribute
+    | Write_file _ -> true
     | Rename _ -> memoize
     | Remove_tree _ -> false
-    | Diff _ -> distribute
+    | Diff _ -> true
     | Mkdir _ -> false
-    | Merge_files_into _ -> distribute
+    | Merge_files_into _ -> true
     | Run _ -> true
     | Dynamic_run _ -> true
     | System _ -> true
     | Bash _ -> true
-    | Extension (module A) -> A.Spec.is_useful_to ~distribute ~memoize
+    | Extension (module A) -> A.Spec.is_useful_to ~memoize
   in
   fun t ->
     match loop t with
     | true -> Maybe
     | false -> Clearly_not
 ;;
 
-let is_useful_to_distribute = is_useful_to true false
-let is_useful_to_memoize = is_useful_to true true
+let is_useful_to_distribute = is_useful_to false
+let is_useful_to_memoize = is_useful_to true
 
 module Full = struct
   module T = struct

src/dune_engine/action_intf.ml

@@ -112,7 +112,7 @@ module Ext = struct
 
     val name : string
     val version : int
-    val is_useful_to : distribute:bool -> memoize:bool -> bool
+    val is_useful_to : memoize:bool -> bool
     val encode : ('p, 't) t -> ('p -> Dune_sexp.t) -> ('t -> Dune_sexp.t) -> Dune_sexp.t
     val bimap : ('a, 'b) t -> ('a -> 'x) -> ('b -> 'y) -> ('x, 'y) t
 

src/dune_patch/dune_patch.ml

@@ -115,7 +115,7 @@ module Spec = struct
   let name = "patch"
   let version = 1
   let bimap patch f _ = f patch
-  let is_useful_to ~distribute:_ ~memoize = memoize
+  let is_useful_to ~memoize = memoize
 
   let encode patch input _ : Dune_lang.t =
     List [ Dune_lang.atom_or_quoted_string name; input patch ]

src/dune_rules/copy_line_directive.ml

@@ -72,7 +72,7 @@ module Spec = struct
   let name = "copy-line-directive"
   let version = 1
   let bimap (src, dst, merlin) f g = f src, g dst, merlin
-  let is_useful_to ~distribute:_ ~memoize = memoize
+  let is_useful_to ~memoize = memoize
 
   let encode (src, dst, merlin) path target : Dune_lang.t =
     List

src/dune_rules/cram/cram_exec.ml

@@ -452,7 +452,7 @@ module Spec = struct
   let name = "cram"
   let version = 1
   let bimap path f _ = f path
-  let is_useful_to ~distribute:_ ~memoize:_ = true
+  let is_useful_to ~memoize:_ = true
 
   let encode script path _ : Dune_lang.t =
     List [ Dune_lang.atom_or_quoted_string "cram"; path script ]

src/dune_rules/format_rules.ml

@@ -33,7 +33,7 @@ let action =
     let name = "format-dune-file"
     let version = 1
     let bimap (ver, src, dst) f g = ver, f src, g dst
-    let is_useful_to ~distribute:_ ~memoize = memoize
+    let is_useful_to ~memoize = memoize
 
     let encode (version, src, dst) path target : Dune_lang.t =
       List

src/dune_rules/install_rules.ml

@@ -1078,7 +1078,7 @@ include (
       let name = "gen-install-file"
       let version = 1
       let bimap (entries, dst) _ g = entries, g dst
-      let is_useful_to ~distribute:_ ~memoize = memoize
+      let is_useful_to ~memoize = memoize
 
       let encode (_entries, dst) _path target : Dune_lang.t =
         List [ Dune_lang.atom_or_quoted_string name; target dst ]

src/dune_rules/pkg_rules.ml

@@ -387,7 +387,7 @@ module Substitute = struct
     let name = "substitute"
     let version = 1
     let bimap (e, s, i, o) f g = e, s, f i, g o
-    let is_useful_to ~distribute:_ ~memoize = memoize
+    let is_useful_to ~memoize = memoize
 
     let encode (e, s, i, o) input output : Dune_lang.t =
       let e =
@@ -973,7 +973,7 @@ module Install_action = struct
       }
     ;;
 
-    let is_useful_to ~distribute:_ ~memoize = memoize
+    let is_useful_to ~memoize = memoize
 
     let encode
       { install_file; config_file; target_dir; install_action; package }
@@ -1225,7 +1225,7 @@ module Fetch = struct
     let name = "source-fetch"
     let version = 1
     let bimap t _ g = { t with target_dir = g t.target_dir }
-    let is_useful_to ~distribute:_ ~memoize = memoize
+    let is_useful_to ~memoize = memoize
 
     let encode_loc f (loc, x) =
       Dune_lang.List
@@ -1303,7 +1303,7 @@ module Copy_tree = struct
     let name = "copy-tree"
     let version = 1
     let bimap (src, dst) f g = f src, g dst
-    let is_useful_to ~distribute:_ ~memoize = memoize
+    let is_useful_to ~memoize = memoize
 
     let encode (src, dst) dep target : Dune_lang.t =
       List [ Dune_lang.atom_or_quoted_string name; dep src; target dst ]