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nixpkgs/pkgs/development/tools/ocaml/utop/default.nix
2019-02-22 17:04:57 +00:00

78 lines
2.3 KiB
Nix

{ stdenv, fetchurl, ocaml, findlib, ocamlbuild, dune
, lambdaTerm, cppo, makeWrapper
}:
if !stdenv.lib.versionAtLeast ocaml.version "4.03"
then throw "utop is not available for OCaml ${ocaml.version}"
else
stdenv.mkDerivation rec {
version = "2.3.0";
name = "utop-${version}";
src = fetchurl {
url = "https://github.com/diml/utop/archive/${version}.tar.gz";
sha256 = "1g1xf19fhzwsikp33pv1wf6wb2qdc5y7dzqi46h8c4l850cwscjh";
};
nativeBuildInputs = [ makeWrapper ];
buildInputs = [ ocaml findlib ocamlbuild cppo dune ];
propagatedBuildInputs = [ lambdaTerm ];
inherit (dune) installPhase;
postFixup =
let
path = "etc/utop/env";
# derivation of just runtime deps so env vars created by
# setup-hooks can be saved for use at runtime
runtime = stdenv.mkDerivation rec {
name = "utop-runtime-env-${version}";
buildInputs = [ findlib ] ++ propagatedBuildInputs;
phases = [ "installPhase" ];
installPhase = ''
mkdir -p "$out"/${path}
for e in OCAMLPATH CAML_LD_LIBRARY_PATH; do
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 ${findlib}/lib/ocaml/${stdenv.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 = stdenv.lib.licenses.bsd3;
platforms = ocaml.meta.platforms or [];
maintainers = [
stdenv.lib.maintainers.gal_bolle
];
};
}