From c158c5bc151aa666e6938dae4bae8043239d2b0f Mon Sep 17 00:00:00 2001
From: Daniel Nagy <danielnagy@posteo.de>
Date: Wed, 19 Apr 2023 21:15:00 +0200
Subject: [PATCH] freenet: Reduce closure size

Reduce the closure size from 1.0G to 174.7M.
---
 .../applications/networking/p2p/freenet/default.nix |  4 ++--
 .../networking/p2p/freenet/freenetWrapper           |  2 +-
 pkgs/top-level/all-packages.nix                     | 13 +++++++++++++
 3 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/pkgs/applications/networking/p2p/freenet/default.nix b/pkgs/applications/networking/p2p/freenet/default.nix
index c7a1a02fc241..8a46b5a476c1 100644
--- a/pkgs/applications/networking/p2p/freenet/default.nix
+++ b/pkgs/applications/networking/p2p/freenet/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, fetchFromGitHub, jdk, gradle, bash, coreutils
+{ lib, stdenv, fetchurl, fetchFromGitHub, jdk, jre, gradle, bash, coreutils
 , substituteAll, nixosTests, perl, fetchpatch, writeText }:
 
 let
@@ -41,7 +41,7 @@ in stdenv.mkDerivation rec {
 
   wrapper = substituteAll {
     src = ./freenetWrapper;
-    inherit bash coreutils jdk seednodes;
+    inherit bash coreutils jre seednodes;
   };
 
   # https://github.com/freenet/fred/blob/next/build-offline.sh
diff --git a/pkgs/applications/networking/p2p/freenet/freenetWrapper b/pkgs/applications/networking/p2p/freenet/freenetWrapper
index f8292615de7a..74ff2c62961f 100755
--- a/pkgs/applications/networking/p2p/freenet/freenetWrapper
+++ b/pkgs/applications/networking/p2p/freenet/freenetWrapper
@@ -15,4 +15,4 @@ cp -u -- @seednodes@ $FREENET_HOME/seednodes.fref
 chmod u+rw -- $FREENET_HOME/seednodes.fref
 
 cd -- $FREENET_HOME
-exec @jdk@/bin/java -Xmx1024M freenet.node.NodeStarter "$@"
+exec @jre@/bin/java -Xmx1024M freenet.node.NodeStarter "$@"
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index dac8b735a293..2daf308d0642 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -30495,6 +30495,19 @@ with pkgs;
 
   freenet = callPackage ../applications/networking/p2p/freenet {
     gradle = gradle_7;
+    jdk = jdk_headless;
+    # Reduce closure size
+    jre = pkgs.jre_minimal.override {
+      modules = [
+        "java.base"
+        "java.logging"
+        "java.naming"
+        "java.sql"
+        "java.desktop"
+        "java.management"
+      ];
+      jdk = jdk_headless;
+    };
   };
 
   freeoffice = callPackage ../applications/office/softmaker/freeoffice.nix { };