builder-web/bin/migrations/builder_migrations.ml

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open Rresult.R.Infix
let pp_error ppf = function
| #Caqti_error.load_or_connect | #Caqti_error.call_or_retrieve as e ->
Caqti_error.pp ppf e
| `Wrong_version (application_id, user_version) ->
Format.fprintf ppf "wrong version { application_id: %ld, user_version: %Ld }"
application_id user_version
let or_die exit_code = function
| Ok r -> r
| Error e ->
Format.eprintf "Database error: %a" pp_error e;
exit exit_code
let do_database_action action () dbpath =
Logs.debug (fun m -> m "Connecting to database...");
let ((module Db : Caqti_blocking.CONNECTION) as conn) =
Caqti_blocking.connect
(Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
|> or_die 1
in
Logs.debug (fun m -> m "Connected!");
let r =
Db.start () >>= fun () ->
Logs.debug (fun m -> m "Started database transaction");
match action conn with
| Ok () ->
Logs.debug (fun m -> m "Committing database transaction");
Db.commit ()
| Error _ as e ->
Logs.debug (fun m -> m "Rolling back database transaction");
Db.rollback () >>= fun () ->
e
in
or_die 2 r
let help man_format migrations = function
| None -> `Help (man_format, None)
| Some migration ->
if List.mem migration migrations
then `Help (man_format, Some migration)
else `Error (true, "Unknown migration: " ^ migration)
let dbpath =
let doc = "sqlite3 database path" in
Cmdliner.Arg.(value &
opt non_dir_file "/var/db/builder-web/builder.sqlite3" &
info ~doc ["dbpath"])
let setup_log =
let setup_log level =
Logs.set_level level;
Logs.set_reporter (Logs_fmt.reporter ~dst:Format.std_formatter ());
in
Cmdliner.Term.(const setup_log $ Logs_cli.level ())
let m20210126 =
let doc = "Adds a column 'main_binary' in 'build' (2021-01-26)" in
Cmdliner.Term.(const do_database_action $ const M20210126.migrate $ setup_log $ dbpath),
Cmdliner.Term.info ~doc "migrate-2021-01-26"
let r20210126 =
let doc = "Rollback 'main_binary' in 'build' (2021-01-26)" in
Cmdliner.Term.(const do_database_action $ const M20210126.rollback $ setup_log $ dbpath),
Cmdliner.Term.info ~doc "rollback-2021-01-26"
let help_cmd =
let topic =
let doc = "Migration to get help on" in
Cmdliner.Arg.(value & pos 0 (some string) None & info ~doc ~docv:"MIGRATION" [])
in
let doc = "Builder migration help" in
Cmdliner.Term.(ret (const help $ man_format $ choice_names $ topic)),
Cmdliner.Term.info ~doc "help"
let default_cmd =
let doc = "Builder migration command" in
Cmdliner.Term.(ret (const help $ man_format $ choice_names $ const None)),
Cmdliner.Term.info ~doc "builder-migrations"
let () =
Cmdliner.Term.eval_choice
default_cmd
[help_cmd;
m20210126; r20210126]
|> Cmdliner.Term.exit