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| author | Shea Levy <shea@shealevy.com> | 2018-01-10 12:08:36 -0500 |
|---|---|---|
| committer | Shea Levy <shea@shealevy.com> | 2018-01-10 12:08:36 -0500 |
| commit | 3a763b91963ef747b188e7062d7a02119d2ef6d3 (patch) | |
| tree | 08d58d81512211509120756c217db10d2de5046c | |
| parent | 65b075991f2af891099a82ff5b164ce9884036b9 (diff) | |
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haskellLib: Add shellAware function
| -rw-r--r-- | pkgs/development/haskell-modules/lib.nix | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/pkgs/development/haskell-modules/lib.nix b/pkgs/development/haskell-modules/lib.nix index 6a724130d254..da4e9c6777bd 100644 --- a/pkgs/development/haskell-modules/lib.nix +++ b/pkgs/development/haskell-modules/lib.nix @@ -154,6 +154,10 @@ rec { (p.override { mkDerivation = extractBuildInputs p.compiler; }).haskellBuildInputs; + # Under normal evaluation, simply return the original package. Under + # nix-shell evaluation, return a nix-shell optimized environment. + shellAware = p: if lib.inNixShell then p.env else p; + ghcInfo = ghc: rec { isCross = (ghc.cross or null) != null; isGhcjs = ghc.isGhcjs or false; |