Fix nix devShell ghc912 musl

Fixes the following error:

 > error: executing '/nix/store/xy4jjgw87sbgwylm5kn047d9gkbhsr9x-bash-5.2p37/bin/bash':
 > Argument list too long

We are attempting to reduce the number of packages required for the
shell by disabling haddock and hoogle. Longer term, it would be better
to disable devShells for cross builds entirely.

Author: sgillespie

flake.nix

@@ -186,24 +186,30 @@
               "https://chap.intersectmbo.org/" = inputs.CHaP;
             };
 
-            shell.tools = {
-              cabal = "latest";
-              fourmolu = "latest";
-              haskell-language-server = {
-                src = nixpkgs.haskell-nix.sources."hls-2.11";
+            shell = {
+              tools = {
+                cabal = "latest";
+                fourmolu = "latest";
+                hlint = "latest";
+
+                haskell-language-server = {
+                  src = nixpkgs.haskell-nix.sources."hls-2.11";
+                };
+              } // lib.optionalAttrs (config.compiler-nix-name == "ghc967") {
+                weeder = "latest";
               };
-              hlint = "latest";
-            } // lib.optionalAttrs (config.compiler-nix-name == "ghc967") {
-              weeder = "latest";
+
+              # Now we use pkgsBuildBuild, to make sure that even in the cross
+              # compilation setting, we don't run into issues where we pick tools
+              # for the target.
+              buildInputs = with nixpkgs.pkgsBuildBuild; [
+                git
+              ];
+
+              withHoogle = true;
+
+              crossPlatforms = _: [];
             };
-            # Now we use pkgsBuildBuild, to make sure that even in the cross
-            # compilation setting, we don't run into issues where we pick tools
-            # for the target.
-            shell.buildInputs = with nixpkgs.pkgsBuildBuild; [
-              gitAndTools.git
-            ];
-            shell.withHoogle = true;
-            shell.crossPlatforms = _: [];
 
             modules = [
               ({ lib, pkgs, ... }: {
@@ -212,7 +218,7 @@
                 packages.katip.doExactConfig = true;
                 # Split data to reduce closure size
                 packages.ekg.components.library.enableSeparateDataOutput = true;
-                # Haddock is failing for these two packages (at least with GHC 8.10.7)                
+                # Haddock is failing for these two packages (at least with GHC 8.10.7)
                 packages.ouroboros-network.doHaddock = config.compiler-nix-name != "ghc8107";
                 packages.cardano-node.doHaddock = config.compiler-nix-name != "ghc8107";
               })
@@ -232,11 +238,11 @@
               })
 
               ({ lib, pkgs, config, ... }: {
-                  # lib:ghc is a bit annoying in that it comes with it's own build-type:Custom, and then tries
-                  # to call out to all kinds of silly tools that GHC doesn't really provide.
-                  # For this reason, we try to get away without re-installing lib:ghc for now.
-                  reinstallableLibGhc = false;
-                })
+                # lib:ghc is a bit annoying in that it comes with it's own build-type:Custom, and then tries
+                # to call out to all kinds of silly tools that GHC doesn't really provide.
+                # For this reason, we try to get away without re-installing lib:ghc for now.
+                reinstallableLibGhc = false;
+              })
 
               (pkgs.lib.mkIf pkgs.hostPlatform.isMusl
                 (let
@@ -267,6 +273,9 @@
                   packages.cardano-db.ghcOptions = ghcOptions;
                   packages.cardano-db-tool.ghcOptions = ghcOptions;
                   packages.cardano-smash-server.ghcOptions = ghcOptions;
+
+                  doHoogle = false;
+                  doHaddock = false;
                 }))
 
               ({