init

build.sh

@@ -0,0 +1,99 @@
+#!/usr/bin/env bash
+# --- Build script for jtop ---
+# This script compiles Java sources into a JAR.
+# If JDK is missing, it prompts the user to install it using the detected package manager.
+
+set -e
+
+JTOP_NAME="jtop"
+SRC_DIR="src"
+BIN_DIR="bin"
+JAR_FILE="${JTOP_NAME}.jar"
+MAIN_CLASS="${JTOP_NAME}.Main"
+
+# --- Detect package manager ---
+detect_package_manager() {
+	if command -v pacman >/dev/null 2>&1; then
+		echo "pacman"
+	elif command -v apt >/dev/null 2>&1; then
+		echo "apt"
+	elif command -v dnf >/dev/null 2>&1; then
+		echo "dnf"
+	elif command -v yum >/dev/null 2>&1; then
+		echo "yum"
+	elif command -v zypper >/dev/null 2>&1; then
+		echo "zypper"
+	elif command -v brew >/dev/null 2>&1; then
+		echo "brew"
+	elif command -v apk >/dev/null 2>&1; then
+		echo "apk"
+	elif command -v emerge >/dev/null 2>&1; then
+		echo "emerge"
+
+	else
+		echo ""
+	fi
+}
+
+# --- Generate JDK install command ---
+jdk_install_command() {
+	local pm="$1"
+	case "$pm" in
+		pacman) echo "pacman -Sy --noconfirm jdk-openjdk" ;;
+		apt) echo "apt update && apt install -y openjdk-21-jdk || apt install -y default-jdk" ;;
+		dnf) echo "dnf install -y java-21-openjdk-devel || dnf install -y java-latest-openjdk-devel" ;;
+		yum) echo "yum install -y java-21-openjdk-devel || yum install -y java-latest-openjdk-devel" ;;
+		zypper) echo "zypper install -y java-21-openjdk-devel || zypper install -y java-latest-openjdk-devel" ;;
+		brew) echo "brew install openjdk" ;;
+		apk) echo "apk add openjdk21" ;;
+		emerge) echo "emerge dev-java/openjdk-bin" ;;
+		*) echo "" ;;
+	esac
+}
+
+# --- Check for javac ---
+if ! command -v javac >/dev/null 2>&1; then
+	echo "Java Development Kit (JDK) not found."
+	PM=$(detect_package_manager)
+
+	if [[ -z "$PM" ]]; then
+		echo "Please install the latest JDK manually and rerun this script."
+		exit 1
+	fi
+
+	CMD=$(jdk_install_command "$PM")
+	if [[ $EUID -ne 0 && "$PM" != "brew" ]]; then
+		echo "Please run this script as root to install the JDK, or install it manually."
+		exit 1
+	fi
+
+	# Prompt the user
+	read -rp "Do you want to run the following command to install the JDK? [$CMD] (y/n): " ANSWER
+	case "$ANSWER" in
+		y|Y)
+			echo "Installing JDK..."
+			eval "$CMD"
+			echo "JDK installed successfully."
+			;;
+		*)
+			echo "JDK installation cancelled. Please install manually and rerun."
+			exit 1
+			;;
+	esac
+fi
+
+# --- Build process ---
+echo "Cleaning previous build..."
+rm -rf "$BIN_DIR" "$JAR_FILE"
+mkdir -p "$BIN_DIR"
+
+echo "Compiling Java sources..."
+# The -d flag preserves the package directory structure
+find "$SRC_DIR" -name "*.java" > sources.txt
+javac -d "$BIN_DIR" @sources.txt
+rm sources.txt
+
+echo "Creating JAR file..."
+jar cfe "$JAR_FILE" "$MAIN_CLASS" -C "$BIN_DIR" .
+
+echo "Build completed successfully: ${JAR_FILE}"