Add -Werror checks

Author: locallycompact

.github/workflows/nix-flake-check.yaml

@@ -0,0 +1,27 @@
+name: "Nix Flake Check"
+
+jobs:
+  build-test:
+    name: "Build & test"
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: 📥 Checkout repository
+      uses: actions/checkout@v4
+
+    - name: ❄ Prepare nix
+      uses: cachix/install-nix-action@v26
+      with:
+        extra_nix_config: |
+          accept-flake-config = true
+          log-lines = 1000
+
+    - name: ❄ Cachix cache of nix derivations
+      uses: cachix/cachix-action@v14
+      with:
+        name: cardano-scaling
+        authToken: '${{ secrets.CACHIX_CARDANO_SCALING_AUTH_TOKEN }}'
+
+    - name: Nix Flake Check
+      run: |
+        nix flake check -L

flake.nix

@@ -98,6 +98,8 @@
             with pkgs.lib.attrsets;
             mapAttrs' (name: value: nameValuePair (s + name) value) attrs;
 
+          addWerror = x: x.override { ghcOptions = [ "-Werror" ]; };
+
         in
         rec {
           legacyPackages = hsPkgs;
@@ -133,6 +135,15 @@
               src = self;
               exe = "${packages.plutus-merkle-tree-tests}/bin/tests";
             };
+            hydra-cardano-api-werror = addWerror hsPkgs.hydra-cardano-api.components.library;
+            hydra-cluster-werror = addWerror hsPkgs.hydra-cluster.components.library;
+            hydra-chain-observer-werror = addWerror hsPkgs.hydra-chain-observer.components.exes.hydra-chain-observer;
+            hydra-plutus-werror = addWerror hsPkgs.hydra-plutus.components.library;
+            hydra-plutus-tests-werror = addWerror hsPkgs.hydra-plutus.components.exes.tests;
+            hydra-node-werror = addWerror hsPkgs.hydra-node.components.library;
+            hydra-node-tests-werror = addWerror hsPkgs.hydra-node.components.tests.tests;
+            hydra-tui-werror = addWerror hsPkgs.hydra-tui.components.library;
+            hydra-tui-tests-werror = addWerror hsPkgs.hydra-tui.components.tests.tests;
           } //
           (if pkgs.stdenv.isLinux then
             {

hydra-cluster/hydra-cluster.cabal

@@ -85,7 +85,7 @@ library
   build-depends:
     , aeson
     , async
-    , base                                         >=4.7     && <5
+    , base                  >=4.7 && <5
     , bytestring
     , cardano-slotting
     , containers
@@ -103,7 +103,6 @@ library
     , lens
     , lens-aeson
     , optparse-applicative
-    , plutus-ledger-api:plutus-ledger-api-testlib  >=1.9.1.0
     , process
     , QuickCheck
     , req

hydra-node/test/Hydra/Model/Payment.hs

@@ -86,6 +86,7 @@ instance IsTx Payment where
   type UTxOType Payment = [(CardanoSigningKey, Value)]
   type ValueType Payment = Value
   txId = error "undefined"
+  txSpendingUTxO = error "undefined"
   balance = foldMap snd
   hashUTxO = encodeUtf8 . show @Text