nur

A Nix User Repository for java developers

Supported packages:

• adoptopenjdk-bin
• adoptopenjdk-jre-bin
• gradle
• groovy
• micronaut-cli
• spring-boot-cli

Purpose

• To provide multiple versions of java packages to developers
• Support java applications and switch which jdk/jre is used
• Provided latest packages available and other major versions
• Support overlays with nixpkgs

Users

Add the channel

nix-channel --add http://github.com/nix-community/NUR/archive/master.tar.gz nur

Add the overlay

nixpkgs.overlays = [                                                        
  nur.repos.moaxcp.overlays.use-moaxcp-nur-packages
];

declare the package to install.

environment.systemPackages = with pkgs; [
  adoptopenjdk-hotspot-bin-15
  gradle-6_7_1
  groovy-4_0_0-alpha-2
  micronaut-cli-2_2_2
];

There are "use" overlays which can switch the jdk used for the tools. For example to switch the tools to adoptopenjdk-15:

nixpkgs.overlays = [                                                        
  nur.repos.moaxcp.overlays.use-moaxcp-nur-packages
  nur.repos.moaxcp.overlays.use-adoptopenjdk15
];

There is also an overlay that will update everything in nixpkgs to the latest version.

nixpkgs.overlays = [                                                        
  nur.repos.moaxcp.overlays.use-moaxcp-nur-packages
  nur.repos.moaxcp.overlays.use-latest
];

Conventions

overlays directory contains overlays for different combinations adoptopenjdk-bin. For instance to use adoptopenjdk-bin-11 with all of the packages within this repo use the use-adoptopenjdk11 overlay.

There is a use-latest overlay which will upgrade all the packages in nixpkgs to the latest versions in this repo.

The overlays do not change the jdk package since that can cause a rebuild of libreoffice and VirtualBox which takes a long time.

Notes

Gradle

Gradle doesn't seem to have pname in unstable which I believe is a required convention in nixpkgs

gradle doesn't have a darwin build. I may not need to but there is a platform native jar for it

native-platform-osx-amd64-0.21.jar

adoptopenjdk-bin

https://ci.adoptopenjdk.net produces artifacts with metadata. https://ci.adoptopenjdk.net/job/build-scripts/job/jobs/ https://api.adoptopenjdk.net/

install checks on all packages

These should be added. jmeter is a good example.

  installCheckPhase = ''
    $out/bin/jmeter --version 2>&1 | grep -q "${version}"
    $out/bin/jmeter-heapdump.sh > /dev/null
    $out/bin/jmeter-shutdown.sh > /dev/null
    $out/bin/jmeter-stoptest.sh > /dev/null
    timeout --kill=1s 1s $out/bin/jmeter-mirror-server.sh || test "$?" = "124"
  '';

helpful tools for adding packages

pkgs/adoptopenjdk-bin/generate-sources.py

updates sources.json with latest versions from adoptopenjdk. Update variables in top of file for versions to add. nightly builds can also be added.

nix-prefetch-url

adds a download to the nix store and prints the hash.

development

build

$ nix-build -A micronaut-cli-2_4_2

install