nixpkgs/pkgs/development/compilers/idris2/default.nix
wchresta 205b0f2c5e Idris2: Refactor default.nix
We take the idris2 projects version of the derivation. Originally,
Idris2 did not maintain their own nix derivation, so we created our
own. Now they maintain their own derivation, so we should try to
keep ours as close to theirs.

This change comes with the following differences:
* support files are in its own output, instead of packaged with idris2
  - This makes it necessary to provide --package for contrib and network
    !!! This is a breaking change !!!
* IDIRS2_PREFIX is set to ~/.idris2 instead of pointing to nix-store
  - This makes --install work as expected for the user
* Properly set IDRIS2_PACKAGE_PATH
* non-linux platform uses chez-racket instead of chez
2022-01-10 22:01:42 +01:00

98 lines
3.1 KiB
Nix

# Almost 1:1 copy of idris2's nix/platform.nix. Some work done in their flake.nix
# we do here instead.
{ stdenv
, lib
, chez
, chez-racket
, clang
, gmp
, fetchFromGitHub
, makeWrapper
, gambit
, nodejs
, zsh
, callPackage
}:
# NOTICE: An `idris2WithPackages` is available at: https://github.com/claymager/idris2-pkgs
let
# Taken from Idris2/idris2/flake.nix. Check if the idris2 project does it this
# way, still, every now and then.
platformChez = if stdenv.system == "x86_64-linux" then chez else chez-racket;
# Uses scheme to bootstrap the build of idris2
in stdenv.mkDerivation rec {
pname = "idris2";
version = "0.5.1";
src = fetchFromGitHub {
owner = "idris-lang";
repo = "Idris2";
rev = "v${version}";
sha256 = "sha256-6CTn8o5geWSesXO7vTrrV/2EOQ3f+nPQ2M5cem13ZSY=";
};
strictDeps = true;
nativeBuildInputs = [ makeWrapper clang platformChez ]
++ lib.optional stdenv.isDarwin [ zsh ];
buildInputs = [ platformChez gmp ];
prePatch = ''
patchShebangs --build tests
'';
makeFlags = [ "PREFIX=$(out)" ]
++ lib.optional stdenv.isDarwin "OS=";
# The name of the main executable of pkgs.chez is `scheme`
buildFlags = [ "bootstrap" "SCHEME=scheme" ];
checkTarget = "test";
checkInputs = [ gambit nodejs ]; # racket ];
checkFlags = [ "INTERACTIVE=" ];
# TODO: Move this into its own derivation, such that this can be changed
# without having to recompile idris2 every time.
postInstall = let
name = "${pname}-${version}";
globalLibraries = [
"\\$HOME/.nix-profile/lib/${name}"
"/run/current-system/sw/lib/${name}"
"$out/${name}"
];
globalLibrariesPath = builtins.concatStringsSep ":" globalLibraries;
in ''
# Remove existing idris2 wrapper that sets incorrect LD_LIBRARY_PATH
rm $out/bin/idris2
# The only thing we need from idris2_app is the actual binary
mv $out/bin/idris2_app/idris2.so $out/bin/idris2
rm $out/bin/idris2_app/*
rmdir $out/bin/idris2_app
# idris2 needs to find scheme at runtime to compile
# idris2 installs packages with --install into the path given by
# IDRIS2_PREFIX. We set that to a default of ~/.idris2, to mirror the
# behaviour of the standard Makefile install.
# TODO: Make support libraries their own derivation such that
# overriding LD_LIBRARY_PATH is unnecessary
wrapProgram "$out/bin/idris2" \
--set-default CHEZ "${platformChez}/bin/scheme" \
--run 'export IDRIS2_PREFIX=''${IDRIS2_PREFIX-"$HOME/.idris2"}' \
--suffix IDRIS2_LIBS ':' "$out/${name}/lib" \
--suffix IDRIS2_DATA ':' "$out/${name}/support" \
--suffix IDRIS2_PACKAGE_PATH ':' "${globalLibrariesPath}" \
--suffix DYLD_LIBRARY_PATH ':' "$out/${name}/lib" \
--suffix LD_LIBRARY_PATH ':' "$out/${name}/lib"
'';
# Run package tests
passthru.tests = callPackage ./tests.nix { inherit pname; };
meta = {
description = "A purely functional programming language with first class types";
homepage = "https://github.com/idris-lang/Idris2";
license = lib.licenses.bsd3;
maintainers = with lib.maintainers; [ fabianhjr wchresta ];
inherit (chez.meta) platforms;
};
}