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(* Js_of_ocaml
* http://www.ocsigen.org/js_of_ocaml/
* Copyright (C) 2020 Hugo Heuzard
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, with linking exception;
* either version 2.1 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*)
open Js_of_ocaml_compiler.Stdlib
let input_lines file =
let rec loop acc ic =
match input_line ic with
| line -> loop (line :: acc) ic
| exception End_of_file -> List.rev acc
in
let ic = open_in file in
let lines = loop [] ic in
close_in ic;
lines
let () =
let file = Sys.argv.(1) in
let lines =
input_lines file
|> List.filter_map ~f:(String.drop_prefix ~prefix:"//# sourceMappingURL=")
in
let content =
match lines with
| [ line ] -> (
match String.drop_prefix ~prefix:"data:application/json;base64," line with
| None -> String.concat ~sep:"\n" (input_lines line)
| Some base64 -> Js_of_ocaml_compiler.Base64.decode_exn base64)
| _ -> failwith "unable to find sourcemap"
in
let sm = Js_of_ocaml_compiler.Source_map_io.of_string content in
print_endline (Js_of_ocaml_compiler.Source_map_io.to_string sm)
|
