Revision 818796ad151631188384a01bb218cf1f8a057135 authored by François Thiré on 22 January 2024, 17:11:32 UTC, committed by François Thiré on 22 January 2024, 17:11:32 UTC
1 parent 73a7a2c
dal_srs.ml
(*****************************************************************************)
(* *)
(* Open Source License *)
(* Copyright (c) 2022 Nomadic Labs, <contact@nomadic-labs.com> *)
(* *)
(* Permission is hereby granted, free of charge, to any person obtaining a *)
(* copy of this software and associated documentation files (the "Software"),*)
(* to deal in the Software without restriction, including without limitation *)
(* the rights to use, copy, modify, merge, publish, distribute, sublicense, *)
(* and/or sell copies of the Software, and to permit persons to whom the *)
(* Software is furnished to do so, subject to the following conditions: *)
(* *)
(* The above copyright notice and this permission notice shall be included *)
(* in all copies or substantial portions of the Software. *)
(* *)
(* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR*)
(* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *)
(* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *)
(* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER*)
(* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *)
(* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *)
(* DEALINGS IN THE SOFTWARE. *)
(* *)
(*****************************************************************************)
type Error_monad.error += No_trusted_setup of string list
let () =
Error_monad.register_error_kind
`Permanent
~id:"node.config.trusted_setup_not_found"
~title:"No trusted setup found"
~description:"No trusted setup found in the explored paths"
~pp:(fun ppf locations ->
Format.fprintf
ppf
"@[<v>cannot find Trusted setup in any of:@,%a@]@."
(Format.pp_print_list (fun fmt -> Format.fprintf fmt "- %s"))
locations)
Data_encoding.(obj1 (req "paths" (list string)))
(function No_trusted_setup parameter -> Some parameter | _ -> None)
(fun parameter -> No_trusted_setup parameter)
(* FIXME https://gitlab.com/tezos/tezos/-/issues/3410
This function should be factored out with the one of sapling. *)
let find_trusted_setup_files ?(getenv_opt = Sys.getenv_opt)
?(getcwd = Sys.getcwd) ?(file_exists = Sys.file_exists) () =
let ( // ) = Filename.concat in
let env ?split name path =
match getenv_opt name with
| None -> []
| Some value -> (
match split with
| None -> [Filename.concat value path]
| Some char ->
List.map (fun dir -> dir // path) (String.split_on_char char value))
in
let cwd path = try [getcwd () // path] with Sys_error _ -> [] in
let candidate_directories =
env "XDG_DATA_HOME" ".local/share/dal-trusted-setup"
@ env ~split:':' "XDG_DATA_DIRS" "dal-trusted-setup"
@ env "OPAM_SWITCH_PREFIX" "share/dal-trusted-setup"
@ env "PWD" "_opam/share/dal-trusted-setup"
@ cwd "_opam/share/dal-trusted-setup"
@ env "HOME" ".dal-trusted-setup"
@ env "HOME" ".local/share/dal-trusted-setup"
@ env "DAL_TRUSTED_SETUP" ""
@ env "HOMEBREW_PREFIX" "share/dal-trusted-setup"
@ ["/usr/local/share/dal-trusted-setup"; "/usr/share/dal-trusted-setup"]
in
(* Files we are looking for. *)
let g1_file = "srs_zcash_g1" in
let g2_file = "srs_zcash_g2" in
(* Find the first candidate directory that contains the expected files. *)
let contains_trusted_setup_files directory =
file_exists (directory // g1_file) && file_exists (directory // g2_file)
in
match List.find_opt contains_trusted_setup_files candidate_directories with
| None -> Error [No_trusted_setup candidate_directories]
| Some directory ->
let g1_path = directory // g1_file in
let g2_path = directory // g2_file in
Ok (g1_path, g2_path)
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