Add support for building minecraft modpacks
This commit is contained in:
parent
b474f7e97c
commit
a9e3610744
27
flake.nix
27
flake.nix
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@ -21,7 +21,7 @@
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};
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};
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outputs = { nixpkgs, nixos-hardware, flake-utils, tlaternet-webserver
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outputs = { self, nixpkgs, nixos-hardware, flake-utils, tlaternet-webserver
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, tlaternet-templates, ... }@inputs:
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let
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overlays = [
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@ -30,14 +30,18 @@
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tlaternet-webserver.legacyPackages.${prev.system}.packages;
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tlaternet-templates =
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tlaternet-templates.legacyPackages.${prev.system}.packages;
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local = import ./pkgs { pkgs = prev; };
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local = import ./pkgs {
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pkgs = prev;
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local-lib = self.lib.${prev.system};
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};
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})
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];
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in {
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nixosConfigurations = {
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tlaternet = nixpkgs.lib.nixosSystem {
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system = "x86_64-linux";
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tlaternet = let system = "x86_64-linux";
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in nixpkgs.lib.nixosSystem {
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inherit system;
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modules = [
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({ modulesPath, ... }: {
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@ -52,8 +56,9 @@
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];
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};
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vm = nixpkgs.lib.nixosSystem {
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system = "x86_64-linux";
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vm = let system = "x86_64-linux";
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in nixpkgs.lib.nixosSystem {
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inherit system;
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modules = [
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({ modulesPath, ... }: {
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@ -88,6 +93,14 @@
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'';
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};
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packages = import ./pkgs { inherit pkgs; };
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packages = import ./pkgs {
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inherit pkgs;
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local-lib = self.lib.${system};
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};
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lib = import ./lib {
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inherit pkgs inputs;
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lib = nixpkgs.lib;
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};
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});
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}
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8
lib/default.nix
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8
lib/default.nix
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@ -0,0 +1,8 @@
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{ inputs, lib, pkgs, ... }:
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let
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inherit (lib) makeExtensible foldr attrValues;
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tlater-lib = makeExtensible (self:
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let callLibs = file: import file { inherit self lib pkgs inputs; };
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in { minecraft = callLibs ./minecraft.nix; });
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in tlater-lib.extend (self: super: foldr (a: b: a // b) { } (attrValues super))
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30
lib/minecraft.nix
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30
lib/minecraft.nix
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@ -0,0 +1,30 @@
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{ lib, pkgs, ... }:
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{
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# Make a modpack given its mod inputs.
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#
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# Mods should be attrsets in this format:
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# {
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# project = "";
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# id = "";
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# filename = "";
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# sha256 = "";
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# }
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#
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# This may be nice to read from a json ;)
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#
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mkModpack = { name, version, mods }:
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pkgs.stdenv.mkDerivation {
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inherit name version;
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srcs = map pkgs.local.fetchFromCurseForge mods;
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sourceRoot = "src/";
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preUnpack = "mkdir -p src/";
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unpackCmd = "cp $curSrc src/";
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installPhase = ''
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mkdir -p $out/mods/
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cp * $out/mods
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'';
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};
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}
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23
pkgs/build-support/fetchFromCurseForge.nix
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23
pkgs/build-support/fetchFromCurseForge.nix
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{ lib, fetchurl }:
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with builtins;
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{ project, id, filename, ... }@args:
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let
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# I think this is supposed to be some weak automation
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# protection. This split "id" is simply part of the download URL.
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#
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# Note that if it's zero-prefixed we need to remove the zeroes. It's
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# really an odd one...
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a = head (match "0*([[:digit:]]+)" (substring 0 4 id));
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b = head (match "0*([[:digit:]]+)" (substring 4 7 id));
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url = "https://media.forgecdn.net/files/${a}/${b}/${filename}";
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otherArgs = removeAttrs args [ "project" "id" "filename" ];
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in fetchurl (otherArgs // {
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inherit url;
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# Rename files to avoid names incompatible with the nix store
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name = "${project}.jar";
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})
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@ -1,6 +1,12 @@
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{ pkgs, ... }:
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{ pkgs, local-lib, ... }:
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{
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let
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inherit (pkgs.lib) callPackageWith;
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callPackage = callPackageWith (pkgs // { inherit local-lib; });
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in {
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# Forge
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forge-server = pkgs.callPackage ./minecraft/forge-server.nix { };
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forge-server = callPackage ./minecraft/forge-server.nix { };
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# Build support
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fetchFromCurseForge = callPackage ./build-support/fetchFromCurseForge.nix { };
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}
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@ -1,4 +1,5 @@
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{ lib, stdenv, fetchurl, jre_headless, runtimeShell }:
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{ lib, stdenv, fetchurl, busybox, coreutils, jre_headless, runtimeShell
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, mods ? null, config ? null, defaultconfigs ? null }:
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let
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name = "forge-server";
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@ -45,6 +46,35 @@ in stdenv.mkDerivation rec {
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#!${runtimeShell}
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set -eu
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# Delete any previous mods directory so that it can be updated
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${busybox}/bin/rm -fr mods
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${lib.optionalString (mods != null) ''
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# Copy the specified mods into the directory. Note that, sadly,
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# forge doesn't support symlinks here.
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${busybox}/bin/mkdir -p mods
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${busybox}/bin/cp -r '${mods}/mods/'*.jar mods
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''}
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# Delete any previous config directories so that they can be updated
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${busybox}/bin/rm -fr config defaultconfigs
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${lib.optionalString (config != null) ''
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# Copy the specified configs into the directory. Forge (and
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# mods) will try to write here, so we cannot symlink.
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${busybox}/bin/mkdir -p config
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${busybox}/bin/cp -r '${config}'/* config
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${busybox}/bin/chmod -R u+w config
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''}
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${lib.optionalString (defaultconfigs != null) ''
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# Copy the specified configs into the directory. Forge (and
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# mods) will try to write here, so we cannot symlink.
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${busybox}/bin/mkdir -p defaultconfigs
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${busybox}/bin/cp -r '${defaultconfigs}'/* defaultconfigs
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${busybox}/bin/chmod -R u+w defaultconfigs
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''}
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exec ${jre_headless}/bin/java \$@ -jar $out'/lib/forge/forge-${version}.jar' nogui
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EOF
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