sneedmc/flake.nix

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{
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description = "A custom launcher for Minecraft that allows you to easily manage multiple installations of Minecraft at once (Fork of MultiMC)";
inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
flake-compat = { url = "github:edolstra/flake-compat"; flake = false; };
libnbtplusplus = { url = "github:multimc/libnbtplusplus"; flake = false; };
quazip = { url = "github:stachenov/quazip"; flake = false; };
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};
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outputs = { self, nixpkgs, libnbtplusplus, quazip, ... }:
let
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# Generate a user-friendly version number.
version = builtins.substring 0 8 self.lastModifiedDate;
# System types to support (qtbase is currently broken for "aarch64-darwin")
supportedSystems = [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" ];
# Helper function to generate an attrset '{ x86_64-linux = f "x86_64-linux"; ... }'.
forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
# Nixpkgs instantiated for supported system types.
pkgs = forAllSystems (system: nixpkgs.legacyPackages.${system});
in
{
packages = forAllSystems (system: { polymc = pkgs.${system}.libsForQt5.callPackage ./packages/nix/polymc { inherit version self quazip libnbtplusplus; }; });
defaultPackage = forAllSystems (system: self.packages.${system}.polymc);
apps = forAllSystems (system: { polymc = { type = "app"; program = "${self.defaultPackage.${system}}/bin/polymc"; }; });
defaultApp = forAllSystems (system: self.apps.${system}.polymc);
overlay = final: prev: { polymc = self.defaultPackage.${final.system}; };
};
}