From 7adbc33487071db0b2af1ff6826a751a1282566e Mon Sep 17 00:00:00 2001
From: Ture Bentzin <ture.bentzin@alumni.fh-aachen.de>
Date: Thu, 20 Nov 2025 16:30:12 +0000
Subject: [PATCH] update: apply template

---
 .envrc      |  1 +
 .gitignore  | 24 ++++++++++++++++++++++
 GNUmakefile | 12 +++++++++++
 Main.java   |  5 +++++
 flake.nix   | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 99 insertions(+)
 create mode 100644 .envrc
 create mode 100644 .gitignore
 create mode 100644 GNUmakefile
 create mode 100644 Main.java
 create mode 100644 flake.nix

diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..a5dbbcb
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake .
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..524f096
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,24 @@
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+replay_pid*
diff --git a/GNUmakefile b/GNUmakefile
new file mode 100644
index 0000000..2ab9f2e
--- /dev/null
+++ b/GNUmakefile
@@ -0,0 +1,12 @@
+JAVA_FMT   = google-java-format
+JAVA_FILES = $(shell find . -name '*.java')
+XML_FMT = xmlindent
+XML_FILES = $(shell find . -name '*.xml')
+
+.PHONY: fmt
+fmt:
+	@echo "Formatting all Java files..."
+	@for f in $(JAVA_FILES); do \
+		echo "  $$f"; \
+		$(JAVA_FMT) -i $$f; \
+	done
diff --git a/Main.java b/Main.java
new file mode 100644
index 0000000..9c885bf
--- /dev/null
+++ b/Main.java
@@ -0,0 +1,5 @@
+public class Main {
+    public static void main(String[] args) {
+        System.out.println("Hello world!");
+    }
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..433cc5f
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,57 @@
+{
+  description = "java-template";
+
+  inputs = {
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  };
+
+  outputs = inputs@{ flake-parts, ... }:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      imports = [
+      ];
+      systems = [ "x86_64-linux" "aarch64-linux" "aarch64-darwin" "x86_64-darwin" ];
+      perSystem = { config, self', inputs', pkgs, system, ... }: let
+
+        jdk = pkgs.jdk21.override {
+        };
+
+        buildInputs = [
+          jdk
+        ];
+
+        devTools = [
+          pkgs.google-java-format
+        ];
+
+      in {
+        devShells.default = pkgs.mkShell {
+          buildInputs = buildInputs ++ devTools;
+        };
+
+        packages = {
+          default = pkgs.stdenv.mkDerivation {
+            pname = "java-template";
+            version = "1.0.0";
+
+            src = ./.;
+
+            nativeBuildInputs = buildInputs ++ [ pkgs.makeWrapper ];
+                                    
+            buildPhase = ''
+              javac -Werror -g:none -deprecation -verbose Main.java
+            '';
+
+            installPhase = ''
+              mkdir -p $out/{bin,lib}
+              cp *.class $out/lib
+
+              makeWrapper ${pkgs.lib.getExe jdk} $out/bin/java-template --add-flags "-cp $out/lib/ Main"
+            '';
+          };
+        };
+      };
+      flake = {
+      };
+    };
+}