depot/third_party/nixpkgs/pkgs/development/tools/haskell/hadrian/hadrian.nix

82 lines
1.8 KiB
Nix

# See also ./make-hadria.nix
{
mkDerivation,
base,
bytestring,
Cabal,
containers,
directory,
extra,
filepath,
lib,
mtl,
parsec,
shake,
text,
transformers,
unordered-containers,
cryptohash-sha256,
base16-bytestring,
writeText,
# Dependencies that are not on Hackage and only used in certain Hadrian versions
ghc-platform ? null,
ghc-toolchain ? null,
# GHC source tree to build hadrian from
ghcSrc,
ghcVersion,
# Customization
userSettings ? null,
}:
mkDerivation {
pname = "hadrian";
version = ghcVersion;
src = ghcSrc;
postUnpack = ''
sourceRoot="$sourceRoot/hadrian"
'';
# Overwrite UserSettings.hs with a provided custom one
postPatch = lib.optionalString (userSettings != null) ''
install -m644 "${writeText "UserSettings.hs" userSettings}" src/UserSettings.hs
'';
configureFlags = [
# avoid QuickCheck dep which needs shared libs / TH
"-f-selftest"
# Building hadrian with -O1 takes quite some time with little benefit.
# Additionally we need to recompile it on every change of UserSettings.hs.
# See https://gitlab.haskell.org/ghc/ghc/-/merge_requests/1190
"-O0"
];
isLibrary = false;
isExecutable = true;
executableHaskellDepends =
[
base
bytestring
Cabal
containers
directory
extra
filepath
mtl
parsec
shake
text
transformers
unordered-containers
]
++ lib.optionals (lib.versionAtLeast ghcVersion "9.7") [
cryptohash-sha256
base16-bytestring
]
++ lib.optionals (lib.versionAtLeast ghcVersion "9.9") [
ghc-platform
ghc-toolchain
];
passthru = {
# Expose »private« dependencies if any
inherit ghc-platform ghc-toolchain;
};
description = "GHC build system";
license = lib.licenses.bsd3;
}