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(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2010 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(* This file gathers environment variables needed by Coq to run (such
as coqlib) *)
let coqbin =
System.canonical_path_name (Filename.dirname Sys.executable_name)
(* The following only makes sense when executables are running from
source tree (e.g. during build or in local mode). *)
let coqroot = Filename.dirname coqbin
(* On win32, we add coqbin to the PATH at launch-time (this used to be
done in a .bat script). *)
let _ =
if Coq_config.arch = "win32" then
Unix.putenv "PATH" (coqbin ^ ";" ^ System.getenv_else "PATH" "")
let reldir instdir testfile oth =
let rpath = if Coq_config.local then [] else instdir in
let out = List.fold_left Filename.concat coqroot rpath in
if Sys.file_exists (Filename.concat out testfile) then out else oth ()
let guess_coqlib () =
let file = "states/initial.coq" in
reldir (if Coq_config.arch = "win32" then ["lib"] else ["lib";"coq"]) file
(fun () ->
let coqlib = match Coq_config.coqlib with
| Some coqlib -> coqlib
| None -> coqroot
in
if Sys.file_exists (Filename.concat coqlib file)
then coqlib
else Util.error "cannot guess a path for Coq libraries; please use -coqlib option")
let coqlib () =
if !Flags.coqlib_spec then !Flags.coqlib else
(if !Flags.boot then coqroot else guess_coqlib ())
let docdir () =
reldir (if Coq_config.arch = "win32" then ["doc"] else ["share";"doc";"coq"]) "html" (fun () -> Coq_config.docdir)
let path_to_list p =
let sep = if Sys.os_type = "Win32" then ';' else ':' in
Util.split_string_at sep p
let xdg_data_home =
Filename.concat
(System.getenv_else "XDG_DATA_HOME" (Filename.concat System.home ".local/share"))
"coq"
let xdg_config_home =
Filename.concat
(System.getenv_else "XDG_CONFIG_HOME" (Filename.concat System.home ".config"))
"coq"
let xdg_data_dirs =
try
List.map (fun dir -> Filename.concat dir "coq") (path_to_list (Sys.getenv "XDG_DATA_DIRS"))
with Not_found -> "/usr/local/share/coq" :: "/usr/share/coq"
:: (match Coq_config.datadir with |None -> [] |Some datadir -> [datadir])
let xdg_dirs =
let dirs = xdg_data_home :: xdg_data_dirs
in
List.rev (List.filter Sys.file_exists dirs)
let coqpath =
try
let path = Sys.getenv "COQPATH" in
List.rev (List.filter Sys.file_exists (path_to_list path))
with Not_found -> []
let rec which l f =
match l with
| [] -> raise Not_found
| p :: tl ->
if Sys.file_exists (Filename.concat p f)
then p
else which tl f
let guess_camlbin () =
let path = try Sys.getenv "PATH" with _ -> raise Not_found in
let lpath = path_to_list path in
which lpath "ocamlc"
let guess_camlp4bin () =
let path = try Sys.getenv "PATH" with _ -> raise Not_found in
let lpath = path_to_list path in
which lpath Coq_config.camlp4
let camlbin () =
if !Flags.camlbin_spec then !Flags.camlbin else
if !Flags.boot then Coq_config.camlbin else
try guess_camlbin () with _ -> Coq_config.camlbin
let camllib () =
if !Flags.boot
then Coq_config.camllib
else
let camlbin = camlbin () in
let com = (Filename.concat camlbin "ocamlc") ^ " -where" in
let _,res = System.run_command (fun x -> x) (fun _ -> ()) com in
Util.strip res
let camlp4bin () =
if !Flags.camlp4bin_spec then !Flags.camlp4bin else
if !Flags.boot then Coq_config.camlp4bin else
try guess_camlp4bin () with _ -> let cb = camlbin () in
if Sys.file_exists (Filename.concat cb Coq_config.camlp4) then cb
else Coq_config.camlp4bin
let camlp4lib () =
if !Flags.boot
then Coq_config.camlp4lib
else
let camlp4bin = camlp4bin () in
let com = (Filename.concat camlp4bin Coq_config.camlp4) ^ " -where" in
let _,res = System.run_command (fun x -> x) (fun _ -> ()) com in
Util.strip res
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