builder-web/bin/migrations/m20210216.ml
2021-11-05 10:10:44 +00:00

50 lines
1.6 KiB
OCaml

let old_version = 1L
let new_version = 2L
let identifier = "2021-02-16"
let migrate_doc = "change to scrypt hashed passwords (NB: destructive!!)"
let rollback_doc = "rollback scrypt hashed passwords (NB: destructive!!)"
let drop_user =
Caqti_request.exec ~oneshot:true
Caqti_type.unit
"DROP TABLE user"
let new_user =
Caqti_request.exec ~oneshot:true
Caqti_type.unit
{| CREATE TABLE user (
id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
username VARCHAR(255) NOT NULL UNIQUE,
password_hash BLOB NOT NULL,
password_salt BLOB NOT NULL,
scrypt_n INTEGER NOT NULL,
scrypt_r INTEGER NOT NULL,
scrypt_p INTEGER NOT NULL
)
|}
let old_user =
Caqti_request.exec
Caqti_type.unit
{| CREATE TABLE user (
id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
username VARCHAR(255) NOT NULL UNIQUE,
password_hash BLOB NOT NULL,
password_salt BLOB NOT NULL,
password_iter INTEGER NOT NULL
)
|}
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 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 Grej.Infix in
Grej.check_version ~user_version:new_version (module Db) >>= fun () ->
Db.exec drop_user () >>= fun () ->
Db.exec old_user () >>= fun () ->
Db.exec (Grej.set_version old_version) ()