dev-templates/java/flake.nix

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{
description = "A Nix-flake-based Java 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; # Change this value to update the whole stack
overlays = [
(final: prev: rec {
jdk = prev."jdk${toString javaVersion}";
gradle = prev.gradle.override {java = jdk;};
maven = prev.maven.override {inherit jdk;};
})
];
supportedSystems = ["x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin"];
forEachSupportedSystem = f:
nixpkgs.lib.genAttrs supportedSystems (system:
f {
pkgs = import nixpkgs {inherit overlays system;};
});
in {
devShells = forEachSupportedSystem ({pkgs}: {
default = pkgs.mkShell {
packages = with pkgs; [gradle jdk maven];
programs.vscode = {
extensions = with pkgs.vscode-extensions; [
mkhl.direnv
redhat.java
];
};
};
});
};
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}