mmj2: init at 2.5.2-unstable-2023-06-27 (#265991)

maintainers/maintainer-list.nix

···
     githubId = 88038050;
     name = "Souvik Sen";
   };
+  io12 = {
+    github = "io12";
+    githubId = 7348004;
+    name = "Benjamin Levy";
+  };
   iogamaster = {
     email = "[e-mail]";
     name = "IogaMaster";

pkgs/by-name/mm/mmj2/package.nix

···
+{
+  lib,
+  maven,
+  fetchFromGitHub,
+  jre,
+  makeWrapper,
+}:
+
+let
+  lastVersion = "2.5.2";
+
+in
+maven.buildMavenPackage {
+  pname = "mmj2";
+
+  # The latest stable version is from 2017 and doesn't include the mmj2jar/mmj2
+  # wrapper script, so use the unstable one for now
+  version = "${lastVersion}-unstable-2023-06-27";
+
+  src = fetchFromGitHub {
+    owner = "digama0";
+    repo = "mmj2";
+    fetchSubmodules = true;
+    rev = "1cd95c1fe4435899c8575644fccb412dd77d79e4";
+    hash = "sha256-WYBrLY04+bJGzjRMs8LgHnI6lMRhQKyz15DIoLeiE2s=";
+  };
+
+  mvnHash = "sha256-fu/q6CTvSllrfgnKNX6aIuPO65H/q0IPCHFuWmOFOvM=";
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  installPhase = ''
+    runHook preInstall
+
+    local jar=$out/share/$pname/$pname.jar
+    local bin=$out/bin/$pname
+    install -Dm644 target/$pname-${lastVersion}-SNAPSHOT-jar-with-dependencies.jar $jar
+    install -Dm744 mmj2jar/$pname $bin
+    wrapProgram $bin \
+      --set MMJ2_JAR $jar \
+      --set JAVA ${jre}/bin/java
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    description = "GUI Proof Assistant for the Metamath project";
+    longDescription = ''
+      mmj2 is a proof assistant for the Metamath language. Metamath is a
+      language that lets you express mathematical axioms and theorems. The proof
+      assistant includes a GUI for creating proofs, proof verification tools,
+      and grammatical/syntax analysis.
+    '';
+    homepage = "https://github.com/digama0/mmj2";
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ io12 ];
+    platforms = platforms.linux;
+    mainProgram = "mmj2";
+  };
+}