depot/third_party/nixpkgs/pkgs/development/tools/ocaml/utop/default.nix
Default email 889482aab3 Project import generated by Copybara.
GitOrigin-RevId: f2537a505d45c31fe5d9c27ea9829b6f4c4e6ac5
2022-06-26 12:26:21 +02:00

74 lines
2.2 KiB
Nix

{ lib, stdenv, fetchurl, ocaml, findlib
, lambda-term, cppo, makeWrapper, buildDunePackage
}:
buildDunePackage rec {
pname = "utop";
version = "2.9.2";
minimalOCamlVersion = "4.03";
src = fetchurl {
url = "https://github.com/ocaml-community/utop/releases/download/${version}/utop-${version}.tbz";
sha256 = "sha256-kvFBCe69TRQIWvZV47SH7ISus9k8afGRw5WLKzKqw08=";
};
nativeBuildInputs = [ makeWrapper cppo ];
propagatedBuildInputs = [ lambda-term ];
postFixup =
let
path = "etc/utop/env";
# derivation of just runtime deps so env vars created by
# setup-hooks can be saved for use at runtime
runtime = stdenv.mkDerivation {
pname = "utop-runtime-env";
inherit version;
buildInputs = [ findlib ] ++ propagatedBuildInputs;
dontUnpack = true;
installPhase = ''
mkdir -p "$out"/${path}
for e in OCAMLPATH CAML_LD_LIBRARY_PATH; do
[[ -v "$e" ]] || continue
printf %s "''${!e}" > "$out"/${path}/$e
done
'';
};
get = key: ''$(cat "${runtime}/${path}/${key}")'';
in ''
for prog in "$out"/bin/*
do
# Note: wrapProgram by default calls 'exec -a $0 ...', but this
# breaks utop on Linux with OCaml 4.04, and is disabled with
# '--argv0 ""' flag. See https://github.com/NixOS/nixpkgs/issues/24496
wrapProgram "$prog" \
--argv0 "" \
--prefix CAML_LD_LIBRARY_PATH ":" "${get "CAML_LD_LIBRARY_PATH"}" \
--prefix OCAMLPATH ":" "${get "OCAMLPATH"}" \
--prefix OCAMLPATH ":" $(unset OCAMLPATH; addOCamlPath "$out"; printf %s "$OCAMLPATH") \
--add-flags "-I ${findlib}/lib/ocaml/${lib.getVersion ocaml}/site-lib"
done
'';
meta = {
description = "Universal toplevel for OCaml";
longDescription = ''
utop is an improved toplevel for OCaml. It can run in a terminal or in Emacs. It supports line edition, history, real-time and context sensitive completion, colors, and more.
It integrates with the tuareg mode in Emacs.
'';
homepage = "https://github.com/diml/utop";
license = lib.licenses.bsd3;
platforms = ocaml.meta.platforms or [];
maintainers = [
lib.maintainers.gal_bolle
];
};
}