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(************************************************************************)
(* * The Rocq Prover / The Rocq Development Team *)
(* v * Copyright INRIA, CNRS and contributors *)
(* <O___,, * (see version control and CREDITS file for authors & dates) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(* * (see LICENSE file for the text of the license) *)
(************************************************************************)
open Util
(** {1 Helper functions} *)
let warn_deprecated_coq_var = CWarnings.create ~name:"deprecated-coq-env-var" ~category:Deprecation.Version.v9_0
Pp.(fun (rocq,coq) ->
str "Deprecated environment variable " ++ str coq ++ pr_comma() ++
str "use " ++ str rocq ++ str " instead.")
let warn_deprecated_coq_var ?loc ~rocq ~coq () = warn_deprecated_coq_var ?loc (rocq,coq)
let () = Boot.Util.set_warn_deprecated_coq_var (fun ~rocq ~coq ->
warn_deprecated_coq_var ~rocq ~coq ())
let getenv_else s dft =
match Boot.Util.getenv_opt s with
| Some v -> v
| None -> dft ()
let getenv_rocq = Boot.Util.getenv_rocq
let safe_getenv warning n =
getenv_else n (fun () ->
warning ("Environment variable "^n^" not found: using '$"^n^"' .");
("$"^n)
)
let ( / ) a b =
if Filename.is_relative b then a ^ "/" ^ b else b
let coqify d = d / "coq"
let home ~warn =
getenv_else "HOME" (fun () ->
try (Sys.getenv "HOMEDRIVE")^(Sys.getenv "HOMEPATH") with Not_found ->
getenv_else "USERPROFILE" (fun () ->
warn ("Cannot determine user home directory, using '.' .");
Filename.current_dir_name))
let path_to_list p =
let sep = if String.equal Sys.os_type "Win32" then ';' else ':' in
String.split_on_char sep p
let expand_path_macros ~warn s =
let rec expand_atom s i =
let l = String.length s in
if i<l && (Util.is_digit s.[i] || Util.is_letter s.[i] || s.[i] == '_')
then expand_atom s (i+1)
else i in
let rec expand_macros s i =
let l = String.length s in
if Int.equal i l then s else
match s.[i] with
| '$' ->
let n = expand_atom s (i+1) in
let v = safe_getenv warn (String.sub s (i+1) (n-i-1)) in
let s = (String.sub s 0 i)^v^(String.sub s n (l-n)) in
expand_macros s (i + String.length v)
| '~' when Int.equal i 0 ->
let n = expand_atom s (i+1) in
let v =
if Int.equal n (i + 1) then home ~warn
else (Unix.getpwnam (String.sub s (i+1) (n-i-1))).Unix.pw_dir
in
let s = v^(String.sub s n (l-n)) in
expand_macros s (String.length v)
| c -> expand_macros s (i+1)
in expand_macros s 0
(** {1 Paths} *)
(** {2 Rocq paths} *)
(** Add a local installation suffix (unless the suffix is itself
absolute in which case the prefix does not matter) *)
let use_suffix suffix =
if String.length suffix > 0 && suffix.[0] = '/' then suffix
else Boot.Env.relocate (Relocatable suffix)
(* XXX do we actually need the local_suffix? *)
let relocate local_suffix path =
(* This assumes implicitly that the suffix is non-trivial *)
let local_path = use_suffix local_suffix in
if Sys.file_exists local_path
then local_path
else Boot.Env.relocate path
let datadir () = relocate Coq_config.datadirsuffix Coq_config.datadir
let configdir () = relocate Coq_config.configdirsuffix Coq_config.configdir
let coqpath () =
let make_search_path path =
let paths = path_to_list path in
let valid_paths = List.filter Sys.file_exists paths in
List.rev valid_paths
in
let rocqpath = getenv_else "ROCQPATH" (fun () -> "") in
let coqpath = getenv_else "COQPATH" (fun () -> "") in
let coqpath = if String.equal coqpath rocqpath then "" else coqpath in
let () = if coqpath <> "" then warn_deprecated_coq_var ~rocq:"ROCQPATH" ~coq:"COQPATH" () in
make_search_path rocqpath @ make_search_path coqpath
(** {1 XDG utilities} *)
let xdg_data_home warn =
coqify
(getenv_else "XDG_DATA_HOME" (fun () -> (home ~warn) / ".local/share"))
let xdg_config_home warn =
coqify
(getenv_else "XDG_CONFIG_HOME" (fun () -> (home ~warn) / ".config"))
let xdg_data_dirs warn =
let sys_dirs =
try
List.map coqify (path_to_list (Sys.getenv "XDG_DATA_DIRS"))
with
| Not_found -> [datadir ()]
in
xdg_data_home warn :: sys_dirs
let xdg_dirs ~warn =
List.filter Sys.file_exists (xdg_data_dirs warn)
|
