Consolidated the repeated derivation for the golden tests

Author: jared

testsuites/lbt-plutus/golden/build.nix

@@ -1,6 +1,17 @@
 _:
 {
   perSystem = { pkgs, config, ... }:
+    let
+      goldenData = pkgs.stdenv.mkDerivation {
+        name = "lbt-plutus-golden-data";
+        src = ./.;
+        # Disable the Fixup phase since it needs to (potentially) write to the
+        # files in `./.` which are readonly in the nix store
+        dontFixup = true;
+        installPhase = ''ln -s "$src" "$out"'';
+      };
+
+    in
     {
       packages = {
         lbt-plutus-golden-haskell = config.lbf-nix.haskellData {
@@ -9,27 +20,11 @@ _:
           cabalPackageName = "lbt-plutus-golden-data";
         };
 
-        lbt-plutus-golden-purescript = pkgs.stdenv.mkDerivation {
-          name = "lbt-plutus-golden-data";
-          src = ./.;
-          phases = "installPhase";
-          installPhase = "ln -s $src $out";
-        };
-
-        lbt-plutus-golden-rust = pkgs.stdenv.mkDerivation {
-          name = "lbt-plutus-golden-data";
-          src = ./.;
-          phases = "installPhase";
-          installPhase = "ln -s $src $out";
-        };
+        lbt-plutus-golden-purescript = goldenData;
 
-        lbt-plutus-golden-typescript = pkgs.stdenv.mkDerivation {
-          name = "lbt-plutus-golden-data";
-          src = ./.;
-          phases = "installPhase";
-          installPhase = ''ln -s "$src" "$out"'';
-        };
+        lbt-plutus-golden-rust = goldenData;
 
+        lbt-plutus-golden-typescript = goldenData;
       };
 
     };

testsuites/lbt-prelude/golden/build.nix

@@ -1,6 +1,17 @@
 _:
 {
   perSystem = { pkgs, config, ... }:
+
+    let
+      goldenData = pkgs.stdenv.mkDerivation {
+        name = "lbt-prelude-golden-data";
+        src = ./.;
+        # Disable the Fixup phase since it needs to (potentially) write to the
+        # files in `./.` which are readonly in the nix store
+        dontFixup = true;
+        installPhase = ''ln -s "$src" "$out"'';
+      };
+    in
     {
       devShells.dev-lbt-prelude-golden = config.devShells.default;
 
@@ -11,27 +22,12 @@ _:
           cabalPackageName = "lbt-prelude-golden-data";
         };
 
-        lbt-prelude-golden-purescript = pkgs.stdenv.mkDerivation {
-          name = "lbt-prelude-golden-data";
-          src = ./.;
-          phases = "installPhase";
-          installPhase = "ln -s $src $out";
-        };
+        lbt-prelude-golden-purescript = goldenData;
 
-        lbt-prelude-golden-rust = pkgs.stdenv.mkDerivation {
-          name = "lbt-prelude-golden-data";
-          src = ./.;
-          phases = "installPhase";
-          installPhase = "ln -s $src $out";
-        };
+        lbt-prelude-golden-rust = goldenData;
 
-        lbt-prelude-golden-typescript = pkgs.stdenv.mkDerivation {
-          name = "lbt-prelude-golden-data";
-          src = ./.;
-          phases = "installPhase";
-          installPhase = ''ln -s "$src" "$out"'';
-        };
-      };
+        lbt-prelude-golden-typescript = goldenData;
 
+      };
     };
 }