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 = {
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nixpkgs.url = "github:NixOS/nixpkgs/release-22.11";
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flake-utils.url = "github:numtide/flake-utils";
};
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outputs =
{ self
, nixpkgs
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, flake-utils
}:
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flake-utils.lib.eachDefaultSystem (system:
let
javaVersion = 17;
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overlays = [
(self: super: rec {
jdk = super."jdk${toString javaVersion}";
sbt = super.sbt.override {
jre = jdk;
};
scala = super.scala_3.override {
jre = jdk;
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};
})
];
pkgs = import nixpkgs { inherit overlays system; };
in
{
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devShells.default = pkgs.mkShell {
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packages = with pkgs; [ scala sbt coursier ];
shellHook = ''
${pkgs.scala}/bin/scala -version
'';
};
});
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}