{lib, stdenvNoCC, haskellPackages, fetchurl, writers}: stdenvNoCC.mkDerivation rec { pname = "hledger-check-fancyassertions"; inherit (haskellPackages.hledger-lib) version; src = fetchurl { name = "hledger-check-fancyassertion-${version}.hs"; url = "https://raw.githubusercontent.com/simonmichael/hledger/hledger-lib-${version}/bin/hledger-check-fancyassertions.hs"; sha256 = "1xy3ssxnwybq40nlffz95w7m9xbzf8ysb13svg0i8g5sfgrw11vk"; }; dontUnpack = true; dontBuild = true; executable = writers.writeHaskell "hledger-check-fancyassertions" { libraries = with haskellPackages; [ hledger-lib base base-compat base-compat-batteries filepath megaparsec microlens optparse-applicative string-qq text time transformers ]; inherit (haskellPackages) ghc; } src; installPhase = '' runHook preInstall install -D $executable $out/bin/${pname} runHook postInstall ''; meta = with lib; { description = "Complex account balance assertions for hledger journals"; homepage = "https://hledger.org/"; changelog = "https://github.com/simonmichael/hledger/blob/master/CHANGES.md"; license = licenses.gpl3; maintainers = [ maintainers.DamienCassou ]; platforms = lib.platforms.all; # GHC can cross-compile }; }