Remove rresult

bin/builder_db.ml

@@ -1,4 +1,5 @@
-open Rresult.R.Infix
+let ( let* ) = Result.bind
+let ( let+ ) x f = Result.map f x
 
 let or_die exit_code = function
   | Ok r -> r
@@ -20,17 +21,18 @@ let defer_foreign_keys =
     "PRAGMA defer_foreign_keys = ON"
 
 let connect uri =
-  Caqti_blocking.connect uri >>= fun (module Db : Caqti_blocking.CONNECTION) ->
-  Db.exec foreign_keys () >>= fun () ->
-  Db.exec defer_foreign_keys () >>= fun () ->
+  let* (module Db : Caqti_blocking.CONNECTION) = Caqti_blocking.connect uri in
+  let* () = Db.exec foreign_keys () in
+  let* () = Db.exec defer_foreign_keys () in
   Ok (module Db : Caqti_blocking.CONNECTION)
 
 let do_migrate dbpath =
+  let* (module Db : Caqti_blocking.CONNECTION) =
     connect (Uri.make ~scheme:"sqlite3" ~path:dbpath ())
-  >>= fun (module Db : Caqti_blocking.CONNECTION) ->
+  in
   List.fold_left
     (fun r migrate ->
-       r >>= fun () ->
+       let* () = r in
        Logs.debug (fun m -> m "Executing migration query: %a" Caqti_request.pp migrate);
        Db.exec migrate ())
     (Ok ())
@@ -42,9 +44,9 @@ let migrate () dbpath =
 let user_mod action dbpath scrypt_n scrypt_r scrypt_p username unrestricted =
   let scrypt_params = Builder_web_auth.scrypt_params ?scrypt_n ?scrypt_r ?scrypt_p () in
   let r =
-    connect
-      (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
-    >>= fun (module Db : Caqti_blocking.CONNECTION)  ->
+    let* (module Db : Caqti_blocking.CONNECTION) =
+      connect (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
+    in
     print_string "Password: ";
     flush stdout;
     (* FIXME: getpass *)
@@ -65,9 +67,9 @@ let user_update () dbpath = user_mod `Update dbpath
 
 let user_list () dbpath =
   let r =
-    connect
-      (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
-    >>= fun (module Db : Caqti_blocking.CONNECTION) ->
+    let* (module Db : Caqti_blocking.CONNECTION) =
+      connect (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
+    in
     Db.iter_s Builder_db.User.get_all
       (fun username -> Ok (print_endline username))
       ()
@@ -76,21 +78,22 @@ let user_list () dbpath =
 
 let user_remove () dbpath username =
   let r =
-    connect
-      (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
-    >>= fun (module Db : Caqti_blocking.CONNECTION)  ->
-    Db.exec Builder_db.Access_list.remove_all_by_username username >>= fun () ->
+    let* (module Db : Caqti_blocking.CONNECTION) =
+      connect (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
+    in
+    let* () = Db.exec Builder_db.Access_list.remove_all_by_username username in
     Db.exec Builder_db.User.remove_user username
   in
   or_die 1 r
 
 let user_disable () dbpath username =
   let r =
-    connect
-      (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
-    >>= fun (module Db : Caqti_blocking.CONNECTION)  ->
-    Db.exec Builder_db.Access_list.remove_all_by_username username >>= fun () ->
-    Db.find_opt Builder_db.User.get_user username >>= function
+    let* (module Db : Caqti_blocking.CONNECTION) =
+      connect (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
+    in
+    let* () = Db.exec Builder_db.Access_list.remove_all_by_username username in
+    let* user = Db.find_opt Builder_db.User.get_user username in
+    match user with
     | None -> Error (`Msg "user not found")
     | Some (_, user_info) ->
       let password_hash = `Scrypt (Cstruct.empty, Cstruct.empty, Builder_web_auth.scrypt_params ()) in
@@ -101,26 +104,34 @@ let user_disable () dbpath username =
 
 let access_add () dbpath username jobname =
   let r =
-    connect
-      (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
-    >>= fun (module Db : Caqti_blocking.CONNECTION)  ->
-    Db.find_opt Builder_db.User.get_user username >>=
-    Option.to_result ~none:(`Msg "unknown user") >>= fun (user_id, _) ->
-    Db.find_opt Builder_db.Job.get_id_by_name jobname >>=
-    Option.to_result ~none:(`Msg "job not found") >>= fun job_id ->
+    let* (module Db : Caqti_blocking.CONNECTION) =
+      connect (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
+    in
+    let* (user_id, _) =
+      Result.bind (Db.find_opt Builder_db.User.get_user username)
+        (Option.to_result ~none:(`Msg "unknown user"))
+    in
+    let* job_id =
+      Result.bind (Db.find_opt Builder_db.Job.get_id_by_name jobname)
+        (Option.to_result ~none:(`Msg "job not found"))
+    in
     Db.exec Builder_db.Access_list.add (user_id, job_id)
    in
    or_die 1 r
 
 let access_remove () dbpath username jobname =
   let r =
-    connect
-      (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
-    >>= fun (module Db : Caqti_blocking.CONNECTION)  ->
-    Db.find_opt Builder_db.User.get_user username >>=
-    Option.to_result ~none:(`Msg "unknown user") >>= fun (user_id, _) ->
-    Db.find_opt Builder_db.Job.get_id_by_name jobname >>=
-    Option.to_result ~none:(`Msg "job not found") >>= fun job_id ->
+    let* (module Db : Caqti_blocking.CONNECTION) =
+      connect (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
+    in
+    let* (user_id, _) =
+      Result.bind (Db.find_opt Builder_db.User.get_user username)
+        (Option.to_result ~none:(`Msg "unknown user"))
+    in
+    let* (job_id) =
+      Result.bind (Db.find_opt Builder_db.Job.get_id_by_name jobname)
+        (Option.to_result ~none:(`Msg "job not found"))
+    in
     Db.exec Builder_db.Access_list.remove (user_id, job_id)
    in
    or_die 1 r
@@ -128,36 +139,39 @@ let access_remove () dbpath username jobname =
 let job_remove () datadir jobname =
   let dbpath = datadir ^ "/builder.sqlite3" in
   let r =
-    connect
-      (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
-    >>= fun (module Db : Caqti_blocking.CONNECTION)  ->
-    Db.find_opt Builder_db.Job.get_id_by_name jobname >>= function
+    let* (module Db : Caqti_blocking.CONNECTION) =
+      connect (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
+    in
+    let* job_id_opt = Db.find_opt Builder_db.Job.get_id_by_name jobname in
+    match job_id_opt with
     | None ->
       Logs.info (fun m -> m "Job %S doesn't exist or has already been removed." jobname);
       Ok ()
     | Some job_id ->
-      Db.start () >>= fun () ->
-      Db.exec defer_foreign_keys () >>= fun () ->
+      let* () = Db.start () in
+      let* () = Db.exec defer_foreign_keys () in
       let r =
-        Db.collect_list Builder_db.Build.get_all job_id >>= fun builds ->
+        let* builds = Db.collect_list Builder_db.Build.get_all job_id in
+        let* () =
           List.fold_left (fun r (build_id, build) ->
-            r >>= fun () ->
+              let* () = r in
               let dir = Fpath.(v datadir / jobname / Uuidm.to_string build.Builder_db.Build.uuid) in
               (match Bos.OS.Dir.delete ~recurse:true dir with
                | Ok _ -> ()
                | Error `Msg e -> Logs.warn (fun m -> m "failed to remove build directory %a: %s" Fpath.pp dir e));
-            Db.exec Builder_db.Build_artifact.remove_by_build build_id >>= fun () ->
+              let* () = Db.exec Builder_db.Build_artifact.remove_by_build build_id in
               Db.exec Builder_db.Build.remove build_id)
             (Ok ())
-          builds >>= fun () ->
-        Db.exec Builder_db.Job.remove job_id >>= fun () ->
+            builds
+        in
+        let* () = Db.exec Builder_db.Job.remove job_id in
         Db.commit ()
       in
       match r with
       | Ok () -> Ok ()
       | Error _ as e ->
         Logs.warn (fun m -> m "Error: rolling back...");
-        Db.rollback () >>= fun () ->
+        let* () = Db.rollback () in
         e
   in
   or_die 1 r
@@ -179,13 +193,13 @@ let main_artifact_hash =
 
 let verify_input_id () dbpath =
   let r =
-    connect
-      (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
-    >>= fun (module Db : Caqti_blocking.CONNECTION)  ->
-    Db.collect_list input_ids () >>= fun input_ids ->
+    let* (module Db : Caqti_blocking.CONNECTION) =
+      connect (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
+    in
+    let* input_ids = Db.collect_list input_ids () in
     List.fold_left (fun acc input_id ->
-      acc >>= fun () ->
-      Db.collect_list main_artifact_hash input_id >>| fun hashes ->
+        let* () = acc in
+        let+ hashes = Db.collect_list main_artifact_hash input_id in
         match hashes with
         | (h, uuid, jobname) :: tl ->
           List.iter (fun (h', uuid', _) ->
@@ -241,10 +255,10 @@ let verify_data_dir () datadir =
   let dbpath = datadir ^ "/builder.sqlite3" in
   Logs.info (fun m -> m "connecting to %s" dbpath);
   let r =
-    connect
-      (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
-    >>= fun (module Db : Caqti_blocking.CONNECTION)  ->
-    Db.find num_build_artifacts () >>= fun num_build_artifacts ->
+    let* (module Db : Caqti_blocking.CONNECTION) =
+      connect (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
+    in
+    let* num_build_artifacts = Db.find num_build_artifacts () in
     Logs.info (fun m -> m "total: %d artifacts" num_build_artifacts);
     let progress =
       let idx = ref 0 in
@@ -266,6 +280,7 @@ let verify_data_dir () datadir =
            Logs.err (fun m -> m "path is not of form <job>/<uuid>/output/<filename>: %a" Fpath.pp path))
       | _ -> Logs.err (fun m -> m "path is not of form <job>/<uuid>/...: %a" Fpath.pp path)
     in
+    let* () =
       Db.iter_s build_artifacts (fun (job, uuid, (fpath, lpath, sha, size)) ->
           progress ();
           verify_job_and_uuid ~fpath job uuid lpath;
@@ -279,15 +294,16 @@ let verify_data_dir () datadir =
              let sh = Mirage_crypto.Hash.SHA256.digest (Cstruct.of_string data) in
              if not (Cstruct.equal sha sh) then Logs.err (fun m -> m "File %a has different hash (in DB %a on disk %a" Fpath.pp abs_path Cstruct.hexdump_pp sha Cstruct.hexdump_pp sh)) ;
           Ok ()
-      ) () >>= fun () ->
+        ) ()
+    in
     Db.iter_s script_and_console (fun (job, uuid, console, script) ->
        verify_job_and_uuid job uuid console;
        verify_job_and_uuid job uuid script;
        let console_file = Fpath.(v datadir // console)
        and script_file = Fpath.(v datadir // script)
        in
-       Bos.OS.File.must_exist console_file >>= fun _ ->
-       Bos.OS.File.must_exist script_file >>= fun _ ->
+       let* _ = Bos.OS.File.must_exist console_file in
+       let* _ = Bos.OS.File.must_exist script_file in
        files_tracked := FpathSet.add console (FpathSet.add script !files_tracked);
        Ok ()) ()
   in

bin/migrations/builder_migrations.ml

@@ -1,5 +1,3 @@
-open Rresult.R.Infix
-
 type action = Fpath.t -> Caqti_blocking.connection ->
   (unit, [ Caqti_error.call_or_retrieve | `Wrong_version of int32 * int64 | `Msg of string ]) result
 
@@ -13,6 +11,7 @@ module type MIGRATION = sig
   val rollback : action
 end
 
+
 let pp_error ppf = function
   | #Caqti_error.load_or_connect | #Caqti_error.call_or_retrieve as e ->
     Caqti_error.pp ppf e
@@ -29,6 +28,7 @@ let or_die exit_code = function
     exit exit_code
 
 let do_database_action action () datadir =
+  let ( let* ) = Result.bind in
   let datadir = Fpath.v datadir in
   let dbpath = Fpath.(datadir / "builder.sqlite3") in
   Logs.debug (fun m -> m "Connecting to database...");
@@ -39,7 +39,7 @@ let do_database_action action () datadir =
   in
   Logs.debug (fun m -> m "Connected!");
   let r =
-    Db.start () >>= fun () ->
+    let* () = Db.start () in
     Logs.debug (fun m -> m "Started database transaction");
     match action datadir conn with
     | Ok () ->
@@ -47,7 +47,7 @@ let do_database_action action () datadir =
       Db.commit ()
     | Error _ as e ->
       Logs.debug (fun m -> m "Rolling back database transaction");
-      Db.rollback () >>= fun () ->
+      let* () = Db.rollback () in
       e
   in
   or_die 2 r

bin/migrations/grej.ml

@@ -1,5 +1,15 @@
 (* Grej is utilities *)
-open Rresult.R.Infix
+module Syntax = struct
+  let ( let* ) = Result.bind
+  let ( let+ ) x f = Result.map f x
+end
+
+module Infix = struct
+  let ( >>= ) = Result.bind
+  let ( >>| ) x f = Result.map f x
+end
+
+open Syntax
 
 let set_version version =
   Caqti_request.exec ~oneshot:true
@@ -10,15 +20,15 @@ let check_version
     ?application_id:(desired_application_id=Builder_db.application_id)
     ~user_version:desired_user_version
     (module Db : Caqti_blocking.CONNECTION) =
-  Db.find Builder_db.get_application_id () >>= fun application_id ->
-  Db.find Builder_db.get_version () >>= fun user_version ->
+  let* application_id = Db.find Builder_db.get_application_id () in
+  let* user_version = Db.find Builder_db.get_version () in
   if application_id <> desired_application_id || user_version <> desired_user_version
   then Error (`Wrong_version (application_id, user_version))
   else Ok ()
 
 let list_iter_result f xs =
   List.fold_left
-    (fun r x -> r >>= fun () -> f x)
+    (fun r x -> let* () = r in f x)
     (Ok ())
     xs
 

bin/migrations/m20210126.ml

@@ -31,7 +31,7 @@ let set_main_binary =
     "UPDATE build SET main_binary = ?2 WHERE id = ?1"
 
 let migrate _datadir (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~application_id:0l ~user_version:0L (module Db) >>= fun () ->
   Db.exec alter_build () >>= fun () ->
   Db.collect_list all_builds () >>= fun builds ->
@@ -87,7 +87,7 @@ let rollback_data =
     |}
 
 let rollback _datadir (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:new_version (module Db) >>= fun () ->
   Db.exec rename_build () >>= fun () ->
   Db.exec create_build () >>= fun () ->

bin/migrations/m20210202.ml

@@ -3,7 +3,7 @@ let identifier = "2021-02-02"
 let migrate_doc = "add index job_build_idx on build"
 let rollback_doc = "rollback index job_build_idx on build"
 
-open Rresult.R.Infix
+open Grej.Infix
 
 let migrate _datadir (module Db : Caqti_blocking.CONNECTION) =
   let job_build_idx =

bin/migrations/m20210216.ml

@@ -36,14 +36,14 @@ let old_user =
     |}
 
 let migrate _datadir (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:old_version (module Db) >>= fun () ->
   Db.exec drop_user () >>= fun () ->
   Db.exec new_user () >>= fun () ->
   Db.exec (Grej.set_version new_version) ()
 
 let rollback _datadir (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:new_version (module Db) >>= fun () ->
   Db.exec drop_user () >>= fun () ->
   Db.exec old_user () >>= fun () ->

bin/migrations/m20210218.ml

@@ -83,7 +83,7 @@ let rename_build_file =
     "ALTER TABLE new_build_file RENAME TO build_file"
 
 let migrate _datadir (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:old_version (module Db) >>= fun () ->
   Db.exec new_build_artifact () >>= fun () ->
   Db.rev_collect_list collect_build_artifact () >>= fun build_artifacts ->
@@ -150,7 +150,7 @@ let copy_build_file =
     "INSERT INTO new_build_file SELECT id, filepath, localpath, sha256, build FROM build_file"
 
 let rollback _datadir (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:new_version (module Db) >>= fun () ->
   Db.exec old_build_artifact () >>= fun () ->
   Db.exec copy_build_artifact () >>= fun () ->

bin/migrations/m20210308.ml

@@ -11,7 +11,7 @@ let broken_builds =
     |}
 
 let fixup _datadir (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:3L (module Db) >>= fun () ->
   Db.rev_collect_list broken_builds () >>= fun broken_builds ->
   Grej.list_iter_result

bin/migrations/m20210427.ml

@@ -3,7 +3,7 @@ let identifier = "2021-04-27"
 let migrate_doc = "add index idx_build_job_start on build"
 let rollback_doc = "rollback index idx_build_job_start on build"
 
-open Rresult.R.Infix
+open Grej.Infix
 
 let migrate _datadir (module Db : Caqti_blocking.CONNECTION) =
   let idx_build_job_start =

bin/migrations/m20210531.ml

@@ -18,7 +18,7 @@ let build_artifact_update_localpath =
 (* We are not migrating build_file because it is unused *)
 
 let migrate datadir (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:old_version (module Db) >>= fun () ->
   Db.collect_list build_artifacts () >>= fun artifacts ->
   Grej.list_iter_result (fun (id, localpath) ->
@@ -29,7 +29,7 @@ let migrate datadir (module Db : Caqti_blocking.CONNECTION) =
   Db.exec (Grej.set_version new_version) ()
 
 let rollback datadir (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:new_version (module Db) >>= fun () ->
    Db.collect_list build_artifacts () >>= fun artifacts ->
   Grej.list_iter_result (fun (id, localpath) ->

bin/migrations/m20210602.ml

@@ -113,7 +113,7 @@ let insert_old_build =
        VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?) |}
 
 let migrate _ (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:old_version (module Db) >>= fun () ->
   Db.exec new_build () >>= fun () ->
   Db.rev_collect_list collect_old_build () >>= fun builds ->
@@ -133,7 +133,7 @@ let migrate _ (module Db : Caqti_blocking.CONNECTION) =
 
  
 let rollback _ (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:new_version (module Db) >>= fun () ->
   Db.exec old_build () >>= fun () ->
   Db.rev_collect_list collect_new_build () >>= fun builds ->

bin/migrations/m20210608.ml

@@ -83,7 +83,7 @@ let rollback_access_list =
    Caqti_type.unit
    "DROP TABLE IF EXISTS access_list"
 
-open Rresult.R.Infix
+open Grej.Infix
 
 let migrate _datadir (module Db : Caqti_blocking.CONNECTION) =
   Grej.check_version ~user_version:old_version (module Db) >>= fun () ->

bin/migrations/m20210609.ml

@@ -96,7 +96,7 @@ let rename_build =
     Caqti_type.unit
     "ALTER TABLE new_build RENAME TO build"
 
-open Rresult.R.Infix
+open Grej.Infix
 
 let migrate _datadir (module Db : Caqti_blocking.CONNECTION) =
   Grej.check_version ~user_version:old_version (module Db) >>= fun () ->

bin/migrations/m20210625.ml

@@ -24,7 +24,7 @@ let drop_build_file =
     Caqti_type.unit
     "DROP TABLE build_file"
 
-open Rresult.R.Infix
+open Grej.Infix
 
 let migrate _datadir (module Db : Caqti_blocking.CONNECTION) =
   Grej.check_version ~user_version:old_version (module Db) >>= fun () ->

bin/migrations/m20210629.ml

@@ -124,7 +124,7 @@ let find_tag =
      Builder_db.Rep.untyped_id
      "SELECT id FROM tag where tag = ?"
 
-open Rresult.R.Infix
+open Grej.Infix
 
 let migrate datadir (module Db : Caqti_blocking.CONNECTION) =
   Grej.check_version ~user_version:old_version (module Db) >>= fun () ->

bin/migrations/m20210630.ml

@@ -55,7 +55,7 @@ let remove_tag =
      Builder_db.Rep.untyped_id
      "DELETE FROM tag where id = ?"
 
-open Rresult.R.Infix
+open Grej.Infix
 
 let migrate datadir (module Db : Caqti_blocking.CONNECTION) =
   Grej.check_version ~user_version:old_version (module Db) >>= fun () ->

bin/migrations/m20210701.ml

@@ -72,7 +72,7 @@ let rename_build =
     Caqti_type.unit
     "ALTER TABLE new_build RENAME TO build"
 
-open Rresult.R.Infix
+open Grej.Infix
 
 let migrate _datadir (module Db : Caqti_blocking.CONNECTION) =
   Grej.check_version ~user_version:old_version (module Db) >>= fun () ->

bin/migrations/m20210706.ml

@@ -77,7 +77,7 @@ let set_input_id =
     (Caqti_type.tup2 Builder_db.Rep.untyped_id Builder_db.Rep.cstruct)
     "UPDATE build SET input_id = ?2 WHERE id = ?1"
 
-open Rresult.R.Infix
+open Grej.Infix
 
 let migrate _datadir (module Db : Caqti_blocking.CONNECTION) =
   Grej.check_version ~user_version:old_version (module Db) >>= fun () ->

bin/migrations/m20210707a.ml

@@ -7,7 +7,7 @@ let orb_left_in_builds =
     |}
 
 let fixup datadir (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:12L (module Db) >>= fun () ->
   Db.rev_collect_list orb_left_in_builds () >>= fun leftover_orb ->
   Grej.list_iter_result

bin/migrations/m20210707b.ml

@@ -24,7 +24,7 @@ let update_paths =
     "UPDATE build_artifact SET localpath = ?2, filepath = ?3 WHERE id = ?1"
 
 let fixup datadir (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:12L (module Db) >>= fun () ->
   Db.rev_collect_list deb_debug_left_in_builds () >>= fun leftover_debug ->
   Grej.list_iter_result
@@ -45,7 +45,7 @@ let fixup datadir (module Db : Caqti_blocking.CONNECTION) =
        Db.exec update_paths (id, new_path path, new_path fpath) >>= fun () ->
        let o = Fpath.append datadir path and n = Fpath.append datadir (new_path path) in
        Logs.info (fun m -> m "renaming %a to %a" Fpath.pp o Fpath.pp n);
-       Rresult.R.error_to_msg ~pp_error:Bos.OS.U.pp_error
+       Result.map_error (fun e -> `Msg (Fmt.str "%a" Bos.OS.U.pp_error e))
          (Bos.OS.U.rename o n) >>= fun () ->
        later ())
     leftover_debug

bin/migrations/m20210707c.ml

@@ -22,7 +22,7 @@ let add_artifact : ((Fpath.t * Fpath.t * Cstruct.t) * (int64 * [`build] Builder_
     {| INSERT INTO build_artifact (filepath, localpath, sha256, size, build) VALUES (?, ?, ?, ?, ?) |}
 
 let fixup datadir (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:12L (module Db) >>= fun () ->
   Db.rev_collect_list all_builds_with_binary () >>= fun builds ->
   Grej.list_iter_result

bin/migrations/m20210707d.ml

@@ -11,7 +11,7 @@ let update_path : ([`build_artifact] Builder_db.Rep.id * Fpath.t, unit, [< `Zero
     "UPDATE build_artifact SET filepath = ?2 WHERE id = ?1"
 
 let fixup _datadir (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:12L (module Db) >>= fun () ->
   Db.rev_collect_list all_build_artifacts_with_dot_slash () >>= fun build_artifacts ->
   Grej.list_iter_result

bin/migrations/m20210712a.ml

@@ -125,9 +125,8 @@ let execution_old_of_new code =
   then Ok (3, None)
   else Error (`Msg "bad encoding")
 
-open Rresult.R.Infix
-
 let migrate _datadir (module Db : Caqti_blocking.CONNECTION) =
+  let open Grej.Infix in
   Grej.check_version ~user_version:old_version (module Db) >>= fun () ->
   Db.exec new_build () >>= fun () ->
   Db.exec copy_old_build () >>= fun () ->
@@ -156,6 +155,7 @@ let migrate _datadir (module Db : Caqti_blocking.CONNECTION) =
   Db.exec (Grej.set_version new_version) ()
 
 let rollback _datadir (module Db : Caqti_blocking.CONNECTION) =
+  let open Grej.Infix in
   Grej.check_version ~user_version:new_version (module Db) >>= fun () ->
   Db.exec old_build () >>= fun () ->
   Db.exec copy_new_build () >>= fun () ->

bin/migrations/m20210712b.ml

@@ -12,7 +12,7 @@ let all_build_artifacts_like_readme : (unit, [`build_artifact] Builder_db.Rep.id
     "SELECT id, localpath FROM build_artifact WHERE filepath LIKE '%README.md'"
 
 let fixup datadir (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:13L (module Db) >>= fun () ->
   Db.rev_collect_list all_build_artifacts_like_hashes () >>= fun build_artifacts_build_hashes ->
   Db.rev_collect_list all_build_artifacts_like_readme () >>= fun build_artifacts_readme ->

bin/migrations/m20210712c.ml

@@ -3,7 +3,7 @@ and identifier = "2021-07-12c"
 and migrate_doc = "store script, console on disk"
 and rollback_doc = "store script, console in database"
 
-open Rresult.R.Infix
+open Grej.Infix
 
 module Asn = struct
   let decode_strict codec cs =
@@ -132,7 +132,7 @@ let rename_build =
 
 let console_to_string console =
   Asn.console_of_cs console
-  |> Rresult.R.reword_error (fun s -> `Msg s) >>| fun console ->
+  |> Result.map_error (fun s -> `Msg s) >>| fun console ->
   List.rev_map (fun (delta, data) ->
       Printf.sprintf "%.3fs:%s\n" (Duration.to_f (Int64.of_int delta)) data)
     console
@@ -176,8 +176,6 @@ let read_console_and_script datadir console_file script_file =
   Bos.OS.File.delete script_file >>= fun () ->
   Ok (console, script)
 
-open Rresult.R.Infix
-
 let migrate datadir (module Db : Caqti_blocking.CONNECTION) =
   Grej.check_version ~user_version:old_version (module Db) >>= fun () ->
   Db.exec new_build () >>= fun () ->

bin/migrations/m20210910.ml

@@ -10,7 +10,7 @@ let fixup =
     "UPDATE build SET console = ?2, script = ?3 WHERE id = ?1"
 
 let fixup _datadir (module Db : Caqti_blocking.CONNECTION) =
-  let open Rresult.R.Infix in
+  let open Grej.Infix in
   Grej.check_version ~user_version:14L (module Db) >>= fun () ->
   Db.collect_list mixups () >>= fun mixups ->
   Grej.list_iter_result (fun (id, console, script) ->

builder-web.opam

@@ -37,7 +37,6 @@ depends: [
   "tyxml"
   "ptime"
   "duration"
-  "rresult"
   "mirage-crypto"
   "asn1-combinators"
   "logs"

lib/builder_web.ml

@@ -13,15 +13,18 @@ let pp_error ppf = function
     else Format.fprintf ppf "Wrong database application id: %ld" application_id
 
 let init_datadir datadir =
-  let open Rresult.R.Infix in
-  Bos.OS.Dir.exists datadir >>= (fun exists ->
+  let ( let* ) = Result.bind and ( let+ ) x f = Result.map f x in
+  let* exists = Bos.OS.Dir.exists datadir in
+  let* () =
     if exists
     then Ok ()
-      else Error (`Msg "Datadir does not exist")) >>= fun () ->
-  Bos.OS.Dir.create ~path:false (Model.staging datadir) >>| fun _ -> ()
+    else Error (`Msg "Datadir does not exist")
+  in
+  let+ _ = Bos.OS.Dir.create ~path:false (Model.staging datadir) in
+  ()
 
 let init dbpath datadir =
-  Rresult.R.bind (init_datadir datadir) @@ fun () ->
+  Result.bind (init_datadir datadir) @@ fun () ->
   Lwt_main.run (
     Caqti_lwt.connect
       (Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
@@ -40,7 +43,7 @@ let pp_exec ppf ((job : Builder.script_job), uuid, _, _, _, _, _) =
 let safe_seg path =
   if Fpath.is_seg path && not (Fpath.is_rel_seg path)
   then Ok (Fpath.v path)
-  else Rresult.R.error_msgf "unsafe path %S" path
+  else Fmt.kstr (fun s -> Error (`Msg s)) "unsafe path %S" path
 
 (* mime lookup with orb knowledge *)
 let mime_lookup path =
@@ -178,7 +181,7 @@ let add_routes datadir =
      * we don't use [file] for the filesystem but is instead used as a key for
      * lookup in the data table of the 'full' file. *)
     get_uuid build >>= fun build ->
-    Fpath.of_string filepath |> Rresult.R.open_error_msg |> Lwt_result.lift
+    Fpath.of_string filepath |> Lwt_result.lift
     |> if_error ~status:`Not_Found "File not found" >>= fun filepath ->
     Dream.sql req (Model.build_artifact build filepath)
     |> if_error "Error getting build artifact" >>= fun file ->

lib/dune

@@ -1,3 +1,3 @@
 (library
  (name builder_web)
- (libraries builder builder_db dream tyxml bos rresult duration hex caqti-lwt opamdiff ptime.clock.os omd))
+ (libraries builder builder_db dream tyxml bos duration hex caqti-lwt opamdiff ptime.clock.os omd))

test/builder_db.ml

@@ -1,4 +1,5 @@
-open Rresult.R.Infix
+let ( >>= ) = Result.bind
+let ( >>| ) x f = Result.map f x
 
 module type CONN = Caqti_blocking.CONNECTION
 
@@ -165,8 +166,7 @@ let add_test_build user_id (module Db : CONN) =
     Db.exec Build.set_main_binary (id, main_binary_id) >>= fun () ->
     Db.commit ()
   in
-  Rresult.R.kignore_error
-    ~use:(fun _ -> Db.rollback ())
+  Result.fold ~ok:Result.ok ~error:(fun _ -> Db.rollback ())
     r
 
 let with_build_db f () =

test/dune

@@ -1,3 +1,3 @@
 (test
  (name builder_db)
- (libraries builder_db caqti.blocking alcotest mirage-crypto-rng.unix rresult))
+ (libraries builder_db caqti.blocking alcotest mirage-crypto-rng.unix))