tjh.dev
1{ pkgs, haskellPackages }:
2
3let
4 # This can be regenerated by running `cabal2nix ./src` in the current directory.
5 pkgDef =
6 {
7 mkDerivation,
8 base,
9 lib,
10 }:
11 mkDerivation {
12 pname = "haskell-setBuildTarget";
13 version = "0.1.0.0";
14 src = ./src;
15 isLibrary = false;
16 isExecutable = true;
17 executableHaskellDepends = [ base ];
18 license = "unknown";
19 };
20
21 drv = haskellPackages.callPackage pkgDef { };
22
23 test =
24 target: excluded:
25 let
26 only = pkgs.haskell.lib.compose.setBuildTarget target drv;
27 in
28 ''
29 if [[ ! -f "${only}/bin/${target}" ]]; then
30 echo "${target} was not built"
31 exit 1
32 fi
33
34 if [[ -f "${only}/bin/${excluded}" ]]; then
35 echo "${excluded} was built, when it should not have been"
36 exit 1
37 fi
38 '';
39
40in
41pkgs.runCommand "test haskell.lib.compose.setBuildTarget"
42 {
43 meta = {
44 inherit (drv.meta) platforms;
45 };
46 }
47 ''
48 ${test "foo" "bar"}
49 ${test "bar" "foo"}
50 touch "$out"
51 ''