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{ pkgs, haskellPackages }:
let
# This can be regenerated by running `cabal2nix .` in the current directory.
pkgDef =
{ mkDerivation, base, lib }:
mkDerivation {
pname = "haskell-setBuildTarget";
version = "0.1.0.0";
src = ./.;
isLibrary = false;
isExecutable = true;
executableHaskellDepends = [ base ];
license = lib.licenses.bsd3;
};
drv = haskellPackages.callPackage pkgDef {};
test = target: excluded:
let only = pkgs.haskell.lib.compose.setBuildTarget target drv;
in ''
if [[ ! -f "${only}/bin/${target}" ]]; then
echo "${target} was not built"
exit 1
fi
if [[ -f "${only}/bin/${excluded}" ]]; then
echo "${excluded} was built, when it should not have been"
exit 1
fi
'';
in
pkgs.runCommand "test haskell.lib.compose.setBuildTarget" {
meta = {
inherit (drv.meta) platforms;
};
} ''
${test "foo" "bar"}
${test "bar" "foo"}
touch "$out"
''
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