boring updates

.github/workflows/ci.yml

@@ -12,8 +12,8 @@ jobs:
     strategy:
       matrix:
         stack-yaml:
-          - stack-nightly.yaml   # ghc-9.6
-          - stack.yaml           # ghc-9.4
+          - stack-nightly.yaml # ghc-9.6
+          - stack.yaml # ghc-9.4
           - stack-lts-20.26.yaml # ghc-9.2
           - stack-lts-19.33.yaml # ghc-9.0
           - stack-lts-18.28.yaml # ghc-8.10
@@ -24,11 +24,8 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v3
-      - uses: freckle/stack-cache-action@v2
-        with:
-          stack-yaml: ${{ matrix.stack-yaml }}
-      - uses: freckle/stack-action@v3
+      - uses: actions/checkout@v4
+      - uses: freckle/stack-action@v4
         with:
           stack-yaml: ${{ matrix.stack-yaml }}
 

.github/workflows/release.yml

@@ -8,7 +8,7 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - id: tag
         uses: freckle/haskell-tag-action@v1

flake.nix

@@ -0,0 +1,78 @@
+{
+  inputs = {
+    stable.url = "github:nixos/nixpkgs/nixos-23.11";
+    unstable.url = "github:nixos/nixpkgs/nixos-unstable";
+    freckle.url = "github:freckle/flakes?dir=main";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+  outputs = inputs:
+    inputs.flake-utils.lib.eachDefaultSystem (system:
+      let
+        nixpkgsArgs = { inherit system; config = { }; };
+
+        nixpkgs = {
+          stable = import inputs.stable nixpkgsArgs;
+          unstable = import inputs.unstable nixpkgsArgs;
+        };
+        freckle = inputs.freckle.packages.${system};
+        freckleLib = inputs.freckle.lib.${system};
+
+      in
+      rec {
+        packages = {
+          cabal = nixpkgs.stable.cabal-install;
+
+          fourmolu = freckle.fourmolu-0-13-x;
+
+          ghc = freckleLib.haskellBundle {
+            ghcVersion = "ghc-9-4-6";
+            packageSelection = p: [
+              p.annotated-exception
+              p.case-insensitive
+              p.http-client
+              p.http-client-tls
+              p.hspec
+              p.iproute
+              p.network
+              p.QuickCheck
+              p.unliftio
+              p.wai
+              p.warp
+              p.yesod-core
+            ];
+          };
+
+          haskell-language-server =
+            nixpkgs.stable.haskell-language-server.override
+              { supportedGhcVersions = [ "946" ]; };
+
+          stack = nixpkgs.stable.writeShellApplication {
+            name = "stack";
+            text = ''
+              ${nixpkgs.stable.stack}/bin/stack --system-ghc --no-nix "$@"
+            '';
+          };
+        };
+
+        devShells.default = nixpkgs.stable.mkShell {
+          buildInputs = with (nixpkgs.stable); [
+            pcre
+            pcre.dev
+            zlib
+            zlib.dev
+          ];
+
+          nativeBuildInputs = with (packages); [
+            cabal
+            fourmolu
+            ghc
+            haskell-language-server
+            stack
+          ];
+
+          shellHook = ''
+            export STACK_YAML=stack.yaml
+          '';
+        };
+      });
+}

graphula.cabal

@@ -1,6 +1,6 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.35.2.
+-- This file has been generated from package.yaml by hpack version 0.36.0.
 --
 -- see: https://github.com/sol/hpack
 --

stack.yaml

@@ -1,4 +1,4 @@
-resolver: lts-21.4
+resolver: lts-21.11
 
 ghc-options:
   "$locals": -fwrite-ide-info

stack.yaml.lock

@@ -6,7 +6,7 @@
 packages: []
 snapshots:
 - completed:
-    sha256: caa77fdbc5b9f698262b21ee78030133272ec53116ad6ddbefdc4c321f668e0c
-    size: 640014
-    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/21/4.yaml
-  original: lts-21.4
+    sha256: 64d66303f927e87ffe6b8ccf736229bf608731e80d7afdf62bdd63c59f857740
+    size: 640037
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/21/11.yaml
+  original: lts-21.11