20 lines
650 B
OCaml
20 lines
650 B
OCaml
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(* Grej is utilities *)
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open Rresult.R.Infix
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let set_version version =
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Caqti_request.exec ~oneshot:true
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Caqti_type.unit
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(Printf.sprintf "PRAGMA user_version = %Ld" version)
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let check_version
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?application_id:(desired_application_id=Builder_db.application_id)
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~user_version:desired_user_version
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(module Db : Caqti_blocking.CONNECTION) =
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Db.find Builder_db.get_application_id () >>= fun application_id ->
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Db.find Builder_db.get_version () >>= fun user_version ->
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if application_id <> desired_application_id || user_version <> desired_user_version
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then Error (`Wrong_version (application_id, user_version))
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else Ok ()
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