Minecraft Startup Script

1️⃣ Guided setup to ensure the server has all it needs
2️⃣ Toggleable auto-restart
3️⃣ Customisable JVM flags (+ RAM allocation + GUI)
4️⃣ (Optional) Calculated JVM flags based on hardware, Java version, and RAM allocation
5️⃣ Auto-generate EULA
6️⃣ Automatic Java detection/selection
7️⃣ Discord webhook integration
8️⃣ Auto-updates with latest version from GitHub

• Windows OS
• Windows PowerShell 5.1
• Java 8 or newer, depending on the Minecraft version

1. Download the script's latest START.BAT release (ensure it is saved as a '.bat').
2. Place it in your Minecraft server's root directory.
3. Run the script by either double clicking the file, or executing via CMD.
4. Upon first use, the script will automatically download core.ps1 and run you through the configuration prompts.

The first run creates config/StartupScript.json. It can be edited directly for advanced options such as custom JVM flags or webhook text.

Older v1 installations using config/StartupScript.conf are imported automatically when v2 starts. The original file is left untouched as a backup.

To apply configuration changes while the script is still running (i.e. console is still open), simply restart the Minecraft server.
No need to restart the script.

• Prompts user for server .jar filename. Checks if the file exists.
• Prompts user to allocate initial and maximum RAM for the server. Checks if entry is a valid value.
• Queries user whether the server should auto-restart or not.
• Queries user whether server should use pre-configured JVM arguments. Regardless of result, will generate file for flag storage.
• Queries user whether to launch with GUI.
• Queries user whether to use Discord webhooks. If yes, user inputs webhook URL.
• Lets user confirm choices. If confirmed, continue to normal startup. If rejected, will restart initial configuration.
• Stores configuration in /config/StartupScript.json.
• Generates auto-accepted EULA.

• Checks for updates to this script.
• Checks for config folder, config file, and sets restart counter. If config is missing, reverts back to initial setup.
• Checks for EULA, if non-existent, creates accepted eula.txt.
• Reads the JSON configuration and validates the selected Java runtime.
• Displays configuration to user and initialises the server.
• Uses built-in JVM defaults, with an optional jvmFlags override in the JSON configuration.
• Checks auto-restart config to decide launch path.

• Launches server, changes console title to the configurable title + restart count, and (if configured) sends Discord message.
• Upon crash or restart, increments the restart counter, reloads configuration + JVM flags, and (if configured) sends Discord message.

• Launches server and changes console title to the configurable title, and (if configured) sends Discord message.
• Upon crash or restart, prompts user whether to restart or exit, and (if configured) sends Discord message.

GNU GPLv3