nixpkgs/pkgs/tools/nix/nix-script/default.nix

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{ lib, stdenv, haskellPackages, fetchFromGitHub }:
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stdenv.mkDerivation {
pname = "nix-script";
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version = "2020-03-23";
src = fetchFromGitHub {
owner = "bennofs";
repo = "nix-script";
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rev = "7706b45429ff22c35bab575734feb2926bf8840b";
sha256 = "0yiqljamcj9x8z801bwj7r30sskrwv4rm6sdf39j83jqql1fyq7y";
};
buildInputs = [
(haskellPackages.ghcWithPackages (hs: with hs; [ posix-escape ]))
];
phases = [ "buildPhase" "installPhase" "fixupPhase" ];
buildPhase = ''
mkdir -p $out/bin
ghc -O2 $src/nix-script.hs -o $out/bin/nix-script -odir . -hidir .
'';
installPhase = ''
ln -s $out/bin/nix-script $out/bin/nix-scripti
'';
meta = with lib; {
description = "A shebang for running inside nix-shell";
homepage = "https://github.com/bennofs/nix-script";
license = licenses.bsd3;
maintainers = with maintainers; [ bennofs rnhmjoj ];
platforms = haskellPackages.ghc.meta.platforms;
};
}