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(* Js_of_ocaml compiler
* 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
open Js_of_ocaml_compiler
open Cmdliner
type options =
{ files : string list
; output_file : string
; include_dirs : string list
}
let options =
let files =
let doc = "Embed [$(docv)] in the js_of_ocaml pseudo filesystem." in
Arg.(value & pos_all string [] & info [] ~docv:"FILES" ~doc)
in
let output_file =
let doc = "Set output file name to [$(docv)]." in
Arg.(required & opt (some string) None & info [ "o" ] ~docv:"FILE" ~doc)
in
let include_dirs =
let doc = "Add [$(docv)] to the list of include directories." in
Arg.(value & opt_all string [] & info [ "I" ] ~docv:"DIR" ~doc)
in
Term.(
const (fun files output_file include_dirs -> { files; output_file; include_dirs })
$ files
$ output_file
$ include_dirs)
let f { files; output_file; include_dirs } =
let code =
{|
//Provides: jsoo_create_file_extern
function jsoo_create_file_extern(name,content){
if(globalThis.jsoo_create_file)
globalThis.jsoo_create_file(name,content);
else {
if(!globalThis.jsoo_fs_tmp) globalThis.jsoo_fs_tmp = [];
globalThis.jsoo_fs_tmp.push({name:name,content:content});
}
return 0;
}
|}
in
Config.set_target `JavaScript;
let fragments = Linker.Fragment.parse_string code in
Linker.load_fragments ~target_env:Isomorphic ~filename:"<dummy>" fragments;
Linker.check_deps ();
let include_dirs =
List.filter_map (include_dirs @ [ "+stdlib/" ]) ~f:(fun d -> Findlib.find [] d)
in
let instr =
Pseudo_fs.f ~prim:`create_file_extern ~cmis:StringSet.empty ~files ~paths:include_dirs
in
let code = Code.prepend Code.empty instr in
Filename.gen_file output_file (fun chan ->
let pfs_fmt = Pretty_print.to_out_channel chan in
let (_ : Source_map.info) =
Driver.f
~standalone:true
~wrap_with_fun:`Iife
~link:`Needed
~formatter:pfs_fmt
~source_map:false
(Parse_bytecode.Debug.create ~include_cmis:false false)
code
in
())
let info =
Info.make
~name:"build-fs"
~doc:"Js_of_ocaml pseudo filesystem utility"
~description:
"jsoo_fs is a tool for embeding files in a Js_of_ocaml pseudo filesystem."
let command =
let t = Cmdliner.Term.(const f $ options) in
Cmdliner.Cmd.v info t
|
