enable bash completion

1 files changed, 7 insertions, 1 deletions

diff --git a/default.nix b/default.nix
index 722d91c..1708430 100644
--- a/default.nix
+++ b/default.nix
@@ -7,7 +7,13 @@ let
 
   haskellPackages = pkgs.haskellPackages.override {
     overrides = self: super: {
-      anissue = super.callCabal2nix "anissue" ./. {};
+      anissue = (super.callCabal2nix "anissue" ./. { }).overrideAttrs (oldAttrs: {
+        postInstall = ''
+          exe=${oldAttrs.pname}
+          mkdir -p $out/share/bash-completion/completions
+          $out/bin/$exe --bash-completion-script $exe >$out/share/bash-completion/completions/$exe
+        '';
+      });
     };
   };