add papermc

.github/workflows/update-flake.yaml

@@ -2,7 +2,7 @@ name: update-flake-lock
 on:
   workflow_dispatch: # allows manual triggering
   schedule:
-    - cron: "31 3 * * 3"
+    - cron: "16 20 * * *"
 jobs:
   lockfile:
     runs-on: ubuntu-latest
@@ -14,11 +14,15 @@ jobs:
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-      - name: Update flake.lock
+      - name: Update flake.lockfile
-        uses: DeterminateSystems/update-flake-lock@v9
+        run: nix flake update
+      - name: Run update script for minecraft
+        run: ./minecraft/update.sh
+      - name: Commit and push
+        uses: technote-space/create-pr-action@v2
         with:
-          pr-title: "Update flake.lock" # Title of PR to be created
+          COMMIT_MESSAGE: "Update everything"
-          pr-labels: | # Labels to be set on the PR
+          COMMIT_NAME: "GitHub Actions[bot]"
-            dependencies
+          COMMIT_EMAIL: "41898282+github-actions[bot]@users.noreply.github.com"
-            automated
+          PR_BRANCH_NAME: 'chore-update-${PR_ID}'
-          token: ${{ secrets.GITHUB_TOKEN }}
+          PR_TITLE: 'chore: update everything'

flake.nix

@@ -12,16 +12,18 @@
     miifox-net.flake = false;
   };
 
-  outputs = {
+  outputs =
-    self,
+    { self
-    nixpkgs,
+    , nixpkgs
-    flake-utils,
+    , flake-utils
-    ...
+    , ...
-  } @ inputs:
+    } @ inputs:
-    flake-utils.lib.eachSystem ["aarch64-linux" "x86_64-linux"] (
+    flake-utils.lib.eachSystem [ "aarch64-linux" "x86_64-linux" ] (
-      system: let
+      system:
-        pkgs = import nixpkgs {inherit system;};
+      let
-      in rec {
+        pkgs = import nixpkgs { inherit system; };
+      in
+      rec {
         formatter = pkgs.alejandra;
 
         devShells.default = pkgs.mkShell {
@@ -30,10 +32,11 @@
           ];
         };
 
-        packages = pkgs.lib.lists.foldl (a: b: a // b) {} (map (f: import f {inherit pkgs inputs;}) [
+        packages = pkgs.lib.lists.foldl (a: b: a // b) { } (map (f: import f { inherit pkgs inputs; }) [
           ./scripts/clean-s3-cache.nix
           ./web/old-homepage.nix
           ./web/miifox-net.nix
+          ./minecraft/paper.nix
         ]);
 
         hydraJobs = {

minecraft/paper.json

@@ -0,0 +1,6 @@
+{
+  "version": "1.18.2",
+  "build": 379,
+  "name": "paper-1.18.2-379.jar",
+  "sha256": "672207836693f08ff147539a7c6ae317b5ac35d6dd6539cbd05bed21dcfcbe1f"
+}

minecraft/paper.nix

@@ -0,0 +1,31 @@
+{ pkgs, ... }:
+let
+  version-info = builtins.fromJSON (builtins.readFile ./paper.json);
+  pname = "paper";
+  mcVersion = version-info.version;
+  buildNum = toString version-info.build;
+in
+rec {
+  paper-jar = pkgs.fetchurl {
+    url = "https://papermc.io/api/v2/projects/paper/versions/${mcVersion}/builds/${buildNum}/downloads/${version-info.name}";
+    inherit (version-info) sha256;
+  };
+  papermc = pkgs.stdenvNoCC.mkDerivation {
+    pname = "papermc";
+    version = "${mcVersion}-${buildNum}";
+
+    dontUnpack = true;
+    dontConfigure = true;
+
+    buildPhase = ''
+      cat > minecraft-server << EOF
+      #!${pkgs.bash}/bin/sh
+      exec ${pkgs.openjdk17_headless}/bin/java \$@ -jar $out/share/papermc/papermc.jar nogui
+    '';
+
+    installPhase = ''
+      install -Dm444 ${paper-jar} $out/share/papermc/papermc.jar
+      install -Dm555 -t $out/bin minecraft-server
+    '';
+  };
+}

minecraft/update.sh

@@ -0,0 +1,4 @@
+#! /usr/bin/env nix-shell
+#! nix-shell -i bash -p curl jq
+
+curl -L https://papermc.io/api/v2/projects/paper/versions/1.18.2/builds | jq '{"version":.version, "build":.builds[-1].build, "name":.builds[-1].downloads.application.name, "sha256":.builds[-1].downloads.application.sha256}' > paper.json