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nixpkgs/pkgs/development/compilers/elm/packages/lib.nix
2020-06-23 19:44:34 +02:00

44 lines
1.4 KiB
Nix

{ writeScriptBin, stdenv, lib, elm }:
let
patchBinwrap =
let
# Patching binwrap by NoOp script
binwrap = writeScriptBin "binwrap" ''
#! ${stdenv.shell}
echo "binwrap called: Returning 0"
return 0
'';
binwrap-install = writeScriptBin "binwrap-install" ''
#! ${stdenv.shell}
echo "binwrap-install called: Doing nothing"
'';
in targets: pkg:
pkg.override (old: {
nativeBuildInputs = (old.nativeBuildInputs or []) ++ [ binwrap binwrap-install ];
# Manually install targets
# by symlinking binaries into `node_modules`
postInstall = let
binFile = module: lib.strings.removeSuffix ("-" + module.version) module.name;
in (old.postInstall or "") + ''
${lib.concatStrings (map (module: ''
echo "linking ${binFile module}"
ln -sf ${module}/bin/${binFile module} \
node_modules/${binFile module}/bin/${binFile module}
'') targets)}
'';
});
patchNpmElm = pkg:
pkg.override (old: {
preRebuild = (old.preRebuild or "") + ''
rm node_modules/elm/install.js
echo "console.log('Nixpkgs\' version of Elm will be used');" > node_modules/elm/install.js
'';
postInstall = (old.postInstall or "") + ''
ln -sf ${elm}/bin/elm node_modules/elm/bin/elm
'';
});
in
{ inherit patchBinwrap patchNpmElm; }