(******************************************************************************)
(* ocaml-fileutils: files and filenames common operations *)
(* *)
(* Copyright (C) 2003-2014, Sylvain Le Gall *)
(* *)
(* This library 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; either version 2.1 of the License, or (at *)
(* your option) any later version, with the OCaml static compilation *)
(* exception. *)
(* *)
(* This library 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 file *)
(* COPYING for more details. *)
(* *)
(* You should have received a copy of the GNU Lesser General Public License *)
(* along with this library; if not, write to the Free Software Foundation, *)
(* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA *)
(******************************************************************************)
open FileUtilTypes
open FileUtilSTAT
open FileUtilTEST
let touch ?atime ?mtime ?(create=true) ?(time=Touch_now) fln =
let atime, mtime =
match atime, mtime with
| None, None -> true, true
| Some b, None -> b, false
| None, Some b -> false, b
| Some b1, Some b2 -> b1, b2
in
let set_time () =
let fatime, fmtime =
match time with
| Touch_now -> 0.0, 0.0
| Touch_timestamp time_ref -> time_ref, time_ref
| Touch_file_time fln_ref ->
let st = stat fln_ref in
st.access_time, st.modification_time
in
let fatime, fmtime =
if not (atime && mtime) then begin
let st = stat fln in
(if atime then fatime else st.access_time),
(if mtime then fmtime else st.modification_time)
end else begin
fatime, fmtime
end
in
Unix.utimes fln fatime fmtime
in
(* Create file if required *)
if test_exists fln then begin
set_time ()
end else if create then begin
close_out (open_out fln);
set_time ()
end