Change the prog arg in Process to Path.t

bin/main.ml

@@ -1007,8 +1007,7 @@ let install_uninstall ~what =
            >>= fun libdir ->
            Fiber.parallel_iter install_files ~f:(fun path ->
              let purpose = Process.Build_job install_files in
-             Process.run ~purpose ~env:setup.env Strict
+             Process.run ~purpose ~env:setup.env Strict opam_installer
-               (Path.to_string opam_installer)
                ([ sprintf "-%c" what.[0]
                 ; Path.to_string path
                 ; "--prefix"

src/context.ml

@@ -109,7 +109,7 @@ let opam_config_var ~env ~cache var =
     match Bin.opam with
     | None -> Fiber.return None
     | Some fn ->
-      Process.run_capture (Accept All) (Path.to_string fn) ~env
+      Process.run_capture (Accept All) fn ~env
         ["config"; "var"; var]
       >>| function
       | Ok s ->
@@ -151,7 +151,7 @@ let create ~(kind : Kind.t) ~path ~env ~name ~merlin ~targets () =
       | Some s -> Fiber.return (Path.absolute s)
       | None ->
         Process.run_capture_line ~env Strict
-          (Path.to_string fn) ["printconf"; "conf"]
+          fn ["printconf"; "conf"]
         >>| Path.absolute)
   in
 
@@ -232,7 +232,7 @@ let create ~(kind : Kind.t) ~path ~env ~name ~merlin ~targets () =
             | None -> args
             | Some s -> "-toolchain" :: s :: args
           in
-          Process.run_capture_lines ~env Strict (Path.to_string fn) args
+          Process.run_capture_lines ~env Strict fn args
           >>| fun l ->
           (* Don't prepend the contents of [OCAMLPATH] since findlib
              does it already *)
@@ -258,8 +258,7 @@ let create ~(kind : Kind.t) ~path ~env ~name ~merlin ~targets () =
     Fiber.fork_and_join
       findlib_path
       (fun () ->
-         Process.run_capture_lines ~env Strict
+         Process.run_capture_lines ~env Strict ocamlc ["-config"]
-           (Path.to_string ocamlc) ["-config"]
          >>| fun lines ->
          let open Result.O in
          ocaml_config_ok_exn
@@ -411,10 +410,9 @@ let create_for_opam ?root ~env ~targets ~switch ~name ?(merlin=false) () =
     (match root with
      | Some root -> Fiber.return root
      | None ->
-       Process.run_capture_line Strict ~env
+       Process.run_capture_line Strict ~env fn ["config"; "var"; "root"])
-         (Path.to_string fn) ["config"; "var"; "root"])
     >>= fun root ->
-    Process.run_capture ~env Strict (Path.to_string fn)
+    Process.run_capture ~env Strict fn
       ["config"; "env"; "--root"; root; "--switch"; switch; "--sexp"]
     >>= fun s ->
     let vars =
@@ -465,8 +463,7 @@ let install_ocaml_libdir t =
     (* If ocamlfind is present, it has precedence over everything else. *)
     match which t "ocamlfind" with
     | Some fn ->
-      (Process.run_capture_line ~env:t.env Strict
+      (Process.run_capture_line ~env:t.env Strict fn ["printconf"; "destdir"]
-         (Path.to_string fn) ["printconf"; "destdir"]
        >>| fun s ->
        Some (Path.absolute s))
     | None ->

src/jbuild_load.ml

@@ -147,9 +147,7 @@ end
            in
          ]}
       *)
-      Process.run Strict ~dir
+      Process.run Strict ~dir ~env:context.env context.ocaml
-        ~env:context.env
-        (Path.to_string context.ocaml)
         args
       >>= fun () ->
       if not (Path.exists generated_jbuild) then

src/print_diff.ml

@@ -24,8 +24,7 @@ let print path1 path2 =
     | None -> fallback ()
     | Some prog ->
       Format.eprintf "%a@?" Loc.print loc;
-      Process.run ~dir ~env:Env.initial Strict (Path.to_string prog)
+      Process.run ~dir ~env:Env.initial Strict prog ["-u"; file1; file2]
-        ["-u"; file1; file2]
       >>= fun () ->
       fallback ()
   in
@@ -35,7 +34,7 @@ let print path1 path2 =
     let cmd =
       sprintf "%s %s %s" cmd (quote_for_shell file1) (quote_for_shell file2)
     in
-    Process.run ~dir ~env:Env.initial Strict (Path.to_string sh) [arg; cmd]
+    Process.run ~dir ~env:Env.initial Strict sh [arg; cmd]
     >>= fun () ->
     die "command reported no differences: %s"
       (if Path.is_root dir then
@@ -46,7 +45,7 @@ let print path1 path2 =
     match Bin.which "patdiff" with
     | None -> normal_diff ()
     | Some prog ->
-      Process.run ~dir ~env:Env.initial Strict (Path.to_string prog)
+      Process.run ~dir ~env:Env.initial Strict prog
         [ "-keep-whitespace"
         ; "-location-style"; "omake"
         ; if Lazy.force Colors.stderr_supports_colors then

src/process.ml

@@ -112,6 +112,7 @@ module Fancy = struct
     | x :: rest -> x :: colorize_args rest
 
   let command_line ~prog ~args ~dir ~stdout_to ~stderr_to =
+    let prog = Path.to_string prog in
     let quote = quote_for_shell in
     let prog = colorize_prog (quote prog) in
     let s =
@@ -228,6 +229,7 @@ let run_internal ?dir ?(stdout_to=Terminal) ?(stderr_to=Terminal) ~env ~purpose
   if display = Verbose then
     Format.eprintf "@{<kwd>Running@}[@{<id>%d@}]: %s@." id
       (Colors.strip_colors_for_stderr command_line);
+  let prog = Path.to_string prog in
   let argv = Array.of_list (prog :: args) in
   let output_filename, stdout_fd, stderr_fd, to_close =
     match stdout_to, stderr_to with
@@ -342,6 +344,7 @@ let run_capture_line ?dir ~env ?(purpose=Internal_job) fail_mode prog args =
     | [x] -> x
     | l ->
       let cmdline =
+        let prog = Path.to_string prog in
         let s = String.concat (prog :: args) ~sep:" " in
         match dir with
         | None -> s

src/process.mli

@@ -44,7 +44,7 @@ val run
   -> env:Env.t
   -> ?purpose:purpose
   -> (unit, 'a) failure_mode
-  -> string
+  -> Path.t
   -> string list
   -> 'a Fiber.t
 
@@ -54,7 +54,7 @@ val run_capture
   -> env:Env.t
   -> ?purpose:purpose
   -> (string, 'a) failure_mode
-  -> string
+  -> Path.t
   -> string list
   -> 'a Fiber.t
 val run_capture_line
@@ -62,7 +62,7 @@ val run_capture_line
   -> env:Env.t
   -> ?purpose:purpose
   -> (string, 'a) failure_mode
-  -> string
+  -> Path.t
   -> string list
   -> 'a Fiber.t
 val run_capture_lines
@@ -70,7 +70,7 @@ val run_capture_lines
   -> env:Env.t
   -> ?purpose:purpose
   -> (string list, 'a) failure_mode
-  -> string
+  -> Path.t
   -> string list
   -> 'a Fiber.t
 

src/stdune/path.mli

@@ -70,7 +70,7 @@ val absolute : string -> t
 val to_absolute_filename : t -> root:string -> string
 
 val reach : t -> from:t -> string
-val reach_for_running : t -> from:t -> string
+val reach_for_running : t -> from:t -> t
 
 val descendant : t -> of_:t -> t option
 val is_descendant : t -> of_:t -> bool

src/watermarks.ml

@@ -201,7 +201,7 @@ let subst_git ?name () =
   let rev = "HEAD" in
   let git =
     match Bin.which "git" with
-    | Some x -> Path.to_string x
+    | Some x -> x
     | None -> Utils.program_not_found "git"
   in
   let env = Env.initial in