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|
(****************************************************************************)
(* the diy toolsuite *)
(* *)
(* Jade Alglave, University College London, UK. *)
(* Luc Maranget, INRIA Paris-Rocquencourt, France. *)
(* *)
(* Copyright 2013-present Institut National de Recherche en Informatique et *)
(* en Automatique and the authors. All rights reserved. *)
(* *)
(* This software is governed by the CeCILL-B license under French law and *)
(* abiding by the rules of distribution of free software. You can use, *)
(* modify and/ or redistribute the software under the terms of the CeCILL-B *)
(* license as circulated by CEA, CNRS and INRIA at the following URL *)
(* "http://www.cecill.info". We also give a copy in LICENSE.txt. *)
(****************************************************************************)
(* Open my files *)
module type Config = sig
val includes : string list
val env : string option
val libdir : string
val debug : bool
end
let pp_debug name = Printf.eprintf "Found and opened: '%s'\n%!" name
module Make =
functor (C:Config) -> struct
let debug = C.debug
let try_open dir name =
let rname = Filename.concat dir name in
try
let r = rname,open_in rname in
if debug then pp_debug rname ;
r
with _ -> raise Exit
let rec try_opens dirs name = match dirs with
| [] -> raise Exit
| dir::dirs ->
try try_open dir name
with Exit -> try_opens dirs name
let envlib = match C.env with
| None -> None
| Some v ->
try Some (Sys.getenv v) with Not_found -> None
let includes =
List.map
(fun d ->
let len = String.length d in
if len > 0 && d.[0] = '+' then
Filename.concat C.libdir (String.sub d 1 (len-1))
else d)
C.includes
let open_lib name =
try try_opens ("."::includes) name
with Exit -> try match envlib with
| Some lib -> try_open lib name
| None -> raise Exit
with Exit -> try try_open C.libdir name
with Exit -> Warn.fatal "Cannot find file %s" name
let do_find name =
let r,chan = open_lib name in
begin try close_in chan with _ -> () end ;
r
let find path =
if Filename.is_implicit path then do_find path
else path
end
|
