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flake.nix
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flake.nix
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{
description = "Scala development shell";
inputs = {
nixpkgs.url = github:nixos/nixpkgs/nixpkgs-unstable;
flake-utils.url = github:numtide/flake-utils;
};
outputs = { nixpkgs, flake-utils, ... }:
flake-utils.lib.eachDefaultSystem (system:
let
# Setting SBT_OPTS because of this bug: https://github.com/sbt/sbt-site/issues/169
sbt-overlay = self: super: {
sbt = super.sbt.overrideAttrs (
old: {
nativeBuildInputs = old.nativeBuildInputs or [ ] ++ [ super.makeWrapper ];
postInstall = ''
wrapProgram $out/bin/sbt --suffix SBT_OPTS : '--add-opens java.base/java.lang=ALL-UNNAMED'
'';
}
);
};
pkgs = import nixpkgs {
inherit system;
overlays = [ sbt-overlay ];
};
jdk = pkgs.jdk19_headless;
in
{
devShell = pkgs.mkShell {
name = "scala-dev-shell";
buildInputs = [
jdk
pkgs.gnupg
pkgs.jekyll
pkgs.sbt
];
shellHook = ''
JAVA_HOME="${jdk}"
'';
};
});
}