mte/tools/gen_taler_signatures.ml
2026-02-17 07:04:21 +01:00

67 lines
1.8 KiB
OCaml

type purpose = {
number: int32;
name: string;
comment: string;
}
let download ~output ~url =
let open Bos in
let res =
OS.Cmd.run
Cmd.(
v "curl"
% "--silent"
% "--show-error"
% "-o"
% output
% "-X"
% "GET"
% url)
in
match res with
| Error (`Msg s) -> Fmt.failwith "download failure: %s" s
| Ok () -> ()
let parse_purposes records =
records
|> List.filter_map (fun l ->
match l with
| a :: b :: c :: _ -> (
let open Recfile_parser in
match a.k = "Number" && b.k = "Name" && c.k = "Comment" with
| false -> None
| true ->
Some
{
number= Int32.of_int (int_of_string a.v);
name= String.lowercase_ascii b.v;
comment= c.v;
})
| _ -> None)
|> List.filter (fun v -> v.number >= 1000_l)
let print_module purposes =
let header =
{|(* This file was generated from the GANA database:
https://git-www.gnunet.org/gana.git/tree/gnunet-signatures/registry.rec *)|}
in
let pp ppf { number; name; comment } =
Fmt.pf ppf "(** %s *)\nlet %s : int32 = %ld_l\n\n" comment name number
in
Fmt.pr "%s\n\n%a@." header (Fmt.list ~sep:Fmt.nop pp) purposes;
()
(* --- *)
let url =
"https://git-www.gnunet.org/gana.git/plain/gnunet-signatures/registry.rec"
let main () =
let tmp_file = Bos.OS.File.tmp "registry.rec.%s" |> Result.get_ok in
download ~output:(Fpath.to_string tmp_file) ~url;
let content = Bos.OS.File.read tmp_file |> Result.get_ok in
match Recfile_parser.parse content with
| Error msg -> Fmt.failwith "Recfile_parser parse error: %s" msg
| Ok records -> print_module (parse_purposes records)
let () = main ()