124 lines
4.2 KiB
Nix
124 lines
4.2 KiB
Nix
{ lib, stdenv, buildEnv
|
|
, haskell, nodejs
|
|
, fetchurl, fetchpatch, makeWrapper, git }:
|
|
|
|
# To update:
|
|
|
|
# 1) Modify ./update.sh and run it
|
|
|
|
# 2) to generate versions.dat:
|
|
# 2.1) git clone https://github.com/elm/compiler.git
|
|
# 2.2) cd compiler
|
|
# 2.3) cabal2nix --shell . | sed 's/"default",/"ghc822",/' > shell.nix
|
|
# 2.4) nix-shell
|
|
# 2.5) mkdir .elm
|
|
# 2.6) export ELM_HOME=$(pwd)/.elm
|
|
# 2.7) cabal build
|
|
# 2.8) cp .elm/0.19.0/package/versions.dat ...
|
|
|
|
# 3) generate a template for elm-elm.nix with:
|
|
# (
|
|
# echo "{";
|
|
# jq '.dependencies | .direct, .indirect | to_entries | .[] | { (.key) : { version : .value, sha256: "" } } ' \
|
|
# < ui/browser/elm.json \
|
|
# | sed 's/:/ =/' \
|
|
# | sed 's/^[{}]//' \
|
|
# | sed -E 's/(["}]),?$/\1;/' \
|
|
# | sed -E 's/"(version|sha256)"/\1/' \
|
|
# | grep -v '^$';
|
|
# echo "}"
|
|
# )
|
|
#
|
|
# ... then fill in the sha256s
|
|
|
|
# Notes:
|
|
|
|
# the elm binary embeds a piece of pre-compiled elm code, used by 'elm
|
|
# reactor'. this means that the build process for 'elm' effectively
|
|
# executes 'elm make'. that in turn expects to retrieve the elm
|
|
# dependencies of that code (elm/core, etc.) from
|
|
# package.elm-lang.org, as well as a cached bit of metadata
|
|
# (versions.dat).
|
|
|
|
# the makeDotElm function lets us retrieve these dependencies in the
|
|
# standard nix way. we have to copy them in (rather than symlink) and
|
|
# make them writable because the elm compiler writes other .dat files
|
|
# alongside the source code. versions.dat was produced during an
|
|
# impure build of this same code; the build complains that it can't
|
|
# update this cache, but continues past that warning.
|
|
|
|
# finally, we set ELM_HOME to point to these pre-fetched artifacts so
|
|
# that the default of ~/.elm isn't used.
|
|
|
|
let
|
|
makeDotElm = ver: deps:
|
|
let versionsDat = ./versions.dat;
|
|
cmds = lib.mapAttrsToList (name: info: let
|
|
pkg = stdenv.mkDerivation {
|
|
|
|
name = lib.replaceChars ["/"] ["-"] name + "-${info.version}";
|
|
|
|
src = fetchurl {
|
|
url = "https://github.com/${name}/archive/${info.version}.tar.gz";
|
|
meta.homepage = "https://github.com/${name}/";
|
|
inherit (info) sha256;
|
|
};
|
|
|
|
phases = [ "unpackPhase" "installPhase" ];
|
|
|
|
installPhase = ''
|
|
mkdir -p $out
|
|
cp -r * $out
|
|
'';
|
|
|
|
};
|
|
in ''
|
|
mkdir -p .elm/${ver}/package/${name}
|
|
cp -R ${pkg} .elm/${ver}/package/${name}/${info.version}
|
|
'') deps;
|
|
in (lib.concatStrings cmds) + ''
|
|
mkdir -p .elm/${ver}/package;
|
|
cp ${versionsDat} .elm/${ver}/package/versions.dat;
|
|
chmod -R +w .elm
|
|
'';
|
|
|
|
hsPkgs = haskell.packages.ghc822.override {
|
|
overrides = self: super: with haskell.lib;
|
|
let elmPkgs = {
|
|
elm = overrideCabal (self.callPackage ./packages/elm.nix { }) (drv: {
|
|
# sadly with parallelism most of the time breaks compilation
|
|
enableParallelBuilding = false;
|
|
preConfigure = ''
|
|
export ELM_HOME=`pwd`/.elm
|
|
'' + (makeDotElm "0.19.0" (import ./packages/elm-elm.nix));
|
|
buildTools = drv.buildTools or [] ++ [ makeWrapper ];
|
|
patches = [
|
|
(fetchpatch {
|
|
url = "https://github.com/elm/compiler/pull/1784/commits/78d2d8eab310552b1b877a3e90e1e57e7a09ddec.patch";
|
|
sha256 = "0vdhk16xqm2hxw12s1b91a0bmi8w4wsxc086qlzglgnjxrl5b3w4";
|
|
})
|
|
];
|
|
postInstall = ''
|
|
wrapProgram $out/bin/elm \
|
|
--prefix PATH ':' ${lib.makeBinPath [ nodejs ]}
|
|
'';
|
|
});
|
|
|
|
|
|
|
|
/*
|
|
The elm-format expression is updated via a script in the https://github.com/avh4/elm-format repo:
|
|
`pacakge/nix/build.sh`
|
|
*/
|
|
elm-format = self.callPackage ./packages/elm-format.nix {};
|
|
};
|
|
in elmPkgs // {
|
|
inherit elmPkgs;
|
|
elmVersion = elmPkgs.elm.version;
|
|
|
|
# Needed for elm-format
|
|
indents = self.callPackage ./packages/indents.nix {};
|
|
tasty-quickcheck = self.callPackage ./packages/tasty-quickcheck.nix {};
|
|
};
|
|
};
|
|
in hsPkgs.elmPkgs
|