a13cdfe520
To keep this for the future we also strictDeps where possible, including for janePackages, topkg, oasis and ocamlbuild. This makes some closures significantly smaller and makes cross compilation easier
79 lines
2.3 KiB
Nix
79 lines
2.3 KiB
Nix
{ lib, stdenv, fetchurl, ocaml, findlib
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, lambdaTerm, cppo, makeWrapper, buildDunePackage
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}:
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if !lib.versionAtLeast ocaml.version "4.03"
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then throw "utop is not available for OCaml ${ocaml.version}"
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else
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buildDunePackage rec {
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pname = "utop";
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version = "2.8.0";
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useDune2 = true;
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src = fetchurl {
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url = "https://github.com/ocaml-community/utop/releases/download/${version}/utop-${version}.tbz";
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sha256 = "0mi571ifjzq4wcjarn8q1b7yl8nxjm1jfx3afac224lqwn6bhb2d";
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};
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nativeBuildInputs = [ makeWrapper cppo ];
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propagatedBuildInputs = [ lambdaTerm ];
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postFixup =
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let
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path = "etc/utop/env";
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# derivation of just runtime deps so env vars created by
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# setup-hooks can be saved for use at runtime
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runtime = stdenv.mkDerivation {
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pname = "utop-runtime-env";
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inherit version;
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buildInputs = [ findlib ] ++ propagatedBuildInputs;
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dontUnpack = true;
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installPhase = ''
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mkdir -p "$out"/${path}
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for e in OCAMLPATH CAML_LD_LIBRARY_PATH; do
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[[ -v "$e" ]] || continue
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printf %s "''${!e}" > "$out"/${path}/$e
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done
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'';
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};
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get = key: ''$(cat "${runtime}/${path}/${key}")'';
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in ''
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for prog in "$out"/bin/*
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do
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# Note: wrapProgram by default calls 'exec -a $0 ...', but this
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# breaks utop on Linux with OCaml 4.04, and is disabled with
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# '--argv0 ""' flag. See https://github.com/NixOS/nixpkgs/issues/24496
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wrapProgram "$prog" \
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--argv0 "" \
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--prefix CAML_LD_LIBRARY_PATH ":" "${get "CAML_LD_LIBRARY_PATH"}" \
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--prefix OCAMLPATH ":" "${get "OCAMLPATH"}" \
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--prefix OCAMLPATH ":" $(unset OCAMLPATH; addOCamlPath "$out"; printf %s "$OCAMLPATH") \
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--add-flags "-I ${findlib}/lib/ocaml/${lib.getVersion ocaml}/site-lib"
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done
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'';
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meta = {
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description = "Universal toplevel for OCaml";
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longDescription = ''
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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.
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It integrates with the tuareg mode in Emacs.
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'';
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homepage = "https://github.com/diml/utop";
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license = lib.licenses.bsd3;
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platforms = ocaml.meta.platforms or [];
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maintainers = [
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lib.maintainers.gal_bolle
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];
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};
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}
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