dev-templates/scala/flake.nix

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{
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description = "A Nix-flake-based Scala development environment";
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inputs.nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1.*.tar.gz";
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outputs = { self, nixpkgs }:
let
javaVersion = 20;
overlays = [
(final: prev: rec {
jdk = prev."jdk${toString javaVersion}";
sbt = prev.sbt.override { jre = jdk; };
scala = prev.scala_3.override { jre = jdk; };
})
];
supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
forEachSupportedSystem = f: nixpkgs.lib.genAttrs supportedSystems (system: f {
pkgs = import nixpkgs { inherit system; };
});
in
{
devShells = forEachSupportedSystem ({ pkgs }: {
default = pkgs.mkShell {
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packages = with pkgs; [ scala sbt coursier ];
};
});
};
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}