Merge pull request #279188 from ncfavier/agda-debug

agda: enable debug printing

pkgs/development/haskell-modules/configuration-darwin.nix

@@ -345,7 +345,7 @@ self: super: ({
   }) (disableCabalFlag "fixity-th" super.fourmolu);
 
   # https://github.com/NixOS/nixpkgs/issues/149692
-  Agda = removeConfigureFlag "-foptimise-heavily" super.Agda;
+  Agda = disableCabalFlag "optimise-heavily" super.Agda;
 
 } // lib.optionalAttrs pkgs.stdenv.isx86_64 {  # x86_64-darwin
 

pkgs/development/haskell-modules/configuration-nix.nix

@@ -1114,10 +1114,16 @@ self: super: builtins.intersectAttrs super {
     preCheck = "export CI=true";
   }) super.aeson-typescript;
 
-  # Enable extra optimisations which increase build time, but also
-  # later compiler performance, so we should do this for user's benefit.
-  # Flag added in Agda 2.6.2
-  Agda = appendConfigureFlag "-foptimise-heavily" super.Agda;
+  Agda = lib.pipe super.Agda [
+    # Enable extra optimisations which increase build time, but also
+    # later compiler performance, so we should do this for user's benefit.
+    # Flag added in Agda 2.6.2
+    (enableCabalFlag "optimise-heavily")
+    # Enable debug printing, which worsens performance slightly but is
+    # very useful.
+    # Flag added in Agda 2.6.4.1, was always enabled before
+    (enableCabalFlag "debug")
+  ];
 
   # ats-format uses cli-setup in Setup.hs which is quite happy to write
   # to arbitrary files in $HOME. This doesn't either not achieve anything

pkgs/development/libraries/agda/1lab/default.nix

@@ -11,9 +11,13 @@ mkDerivation rec {
     hash = "sha256-0U6s6sXdynk2IWRBDXBJCf7Gc+gE8AhR1PXZl0DS4yU=";
   };
 
-  # We don't need anything in support; avoid installing LICENSE.agda
   postPatch = ''
+    # We don't need anything in support; avoid installing LICENSE.agda
     rm -rf support
+
+    # Remove verbosity options as they make Agda take longer and use more memory.
+    shopt -s globstar extglob
+    sed -Ei '/OPTIONS/s/ -v ?[^ #]+//g' src/**/*.@(agda|lagda.md)
   '';
 
   libraryName = "1lab";