nixpkgs/pkgs/development/haskell-modules/generic-stack-builder.nix

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{ stdenv, ghc, pkgconfig, glibcLocales
, cacert, stack, makeSetupHook, lib }@depArgs:
{ buildInputs ? []
, extraArgs ? []
, LD_LIBRARY_PATH ? []
, ghc ? depArgs.ghc
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, stack ? depArgs.stack
, ...
}@args:
let
stackCmd = "stack --internal-re-exec-version=${stack.version}";
# Add all dependencies in buildInputs including propagated ones to
# STACK_IN_NIX_EXTRA_ARGS.
stackHook = makeSetupHook {} ./stack-hook.sh;
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in stdenv.mkDerivation (args // {
buildInputs = buildInputs
++ lib.optional (stdenv.hostPlatform.libc == "glibc") glibcLocales;
nativeBuildInputs = [ ghc pkgconfig stack stackHook ];
STACK_PLATFORM_VARIANT = "nix";
STACK_IN_NIX_SHELL = 1;
STACK_IN_NIX_EXTRA_ARGS = extraArgs;
# XXX: workaround for https://ghc.haskell.org/trac/ghc/ticket/11042.
LD_LIBRARY_PATH = lib.makeLibraryPath (LD_LIBRARY_PATH ++ buildInputs);
# ^^^ Internally uses `getOutput "lib"` (equiv. to getLib)
# Non-NixOS git needs cert
GIT_SSL_CAINFO = "${cacert}/etc/ssl/certs/ca-bundle.crt";
# Fixes https://github.com/commercialhaskell/stack/issues/2358
LANG = "en_US.UTF-8";
preferLocalBuild = true;
preConfigure = ''
export STACK_ROOT=$NIX_BUILD_TOP/.stack
'';
buildPhase = args.buildPhase or ''
runHook preBuild
${stackCmd} build
runHook postBuild
'';
checkPhase = args.checkPhase or ''
runHook preCheck
${stackCmd} test
runHook postCheck
'';
doCheck = args.doCheck or true;
installPhase = args.installPhase or ''
runHook preInstall
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${stackCmd} --local-bin-path=$out/bin build --copy-bins
runHook postInstall
'';
})