ghc2021

Author: chris-martin

.envrc

@@ -0,0 +1,3 @@
+use flake
+
+watch_file **/*.cabal cabal.project.freeze **/*.nix flake.lock

flake.lock

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+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = inputs:
+    inputs.flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import inputs.nixpkgs { inherit system; };
+      in
+      import ./nix { inherit pkgs; }
+    );
+}

flake.nix

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+{ pkgs }:
+
+let
+  inherit (pkgs.lib) fold composeExtensions concatMap attrValues;
+
+  hls = pkgs.haskell-language-server.override {
+    supportedGhcVersions = [ "96" ];
+  };
+
+  combineOverrides = old:
+    fold composeExtensions (old.overrides or (_: _: { }));
+
+  testConfigurations =
+    let
+      makeTestConfiguration = { ghcVersion, overrides ? new: old: { } }:
+        let
+          inherit (pkgs.haskell.lib) dontCheck packageSourceOverrides;
+        in
+        (pkgs.haskell.packages.${ghcVersion}.override (old: {
+          overrides =
+            combineOverrides old [
+              (packageSourceOverrides { partial-semigroup = ../partial-semigroup; })
+              overrides
+            ];
+        })).partial-semigroup;
+    in
+    rec {
+      ghc-9-2 = makeTestConfiguration {
+        ghcVersion = "ghc92";
+      };
+      ghc-9-4 = makeTestConfiguration {
+        ghcVersion = "ghc94";
+      };
+      ghc-9-6 = makeTestConfiguration {
+        ghcVersion = "ghc96";
+        overrides = new: old: {
+          # x = new.callPackage ./haskell/x.nix { };
+        };
+      };
+      all = pkgs.symlinkJoin {
+        name = "partial-semigroup-tests";
+        paths = [ ghc-9-2 ghc-9-4 ghc-9-6 ];
+      };
+    };
+
+in
+{
+
+  packages = { inherit testConfigurations; };
+
+  devShells.default = pkgs.mkShell {
+    inputsFrom = [ testConfigurations.ghc-9-6.env ];
+    buildInputs = [ hls pkgs.cabal-install ];
+  };
+
+}

license.txt

@@ -1,3 +1,7 @@
+0.6.0.2 - 2023 June 26
+
+  * Raise language version to GHC2021
+
 0.6.0.1 - 2023 Jan 10
 
   * Support GHC 9.4