From d0b837e4040177ae7fab59021ce5b7e0dcb38ae0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ji=C5=99=C3=AD=20=C5=A0tefka?= <jiri.stefka@atlas.cz>
Date: Thu, 23 Feb 2023 01:16:13 +0100
Subject: [PATCH] Initial script commit

---
 start.sh | 149 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 start.sh

diff --git a/start.sh b/start.sh
new file mode 100644
index 0000000..2549004
--- /dev/null
+++ b/start.sh
@@ -0,0 +1,149 @@
+#!/bin/bash
+# Auto Update & Run PaperMC server script
+
+# Settings
+version="1.19.3"
+# Leave blank to use the latest build
+select_build=""
+
+# Memory settings
+initMem="1500M"
+maxMem="8000M" # Maximum memory the server can use
+
+# Options for the server
+mc_launchoptions="-nogui"
+# Options for the java runtime
+java_launchoptions="-Xms$initMem -Xmx$maxMem"
+
+# Api url
+url="https://api.papermc.io/v2/projects/paper/versions/$version/builds"
+
+if curl -s "$url" | grep -q '{"error":"Version not found."}'; then
+  echo "Error: Invalid version selected: $version"
+  exit 1
+else
+  if [ ! -z "$select_build" ]; then
+    if curl -Is "https://api.papermc.io/v2/projects/paper/versions/$version/builds/$select_build/downloads/paper-$version-$select_build.jar" | grep "HTTP/2 404" >/dev/null; then
+      echo "Error: Invalid build selected: $select_build"
+      exit 1
+    fi
+  fi
+fi
+
+# Check if some server already exists
+if ls paper-*.jar 1> /dev/null 2>&1; then
+  # Get the current server file name
+  server_file=$(basename ./paper-*.jar)
+
+  # Extract the build number using cut command
+  current_build=$(echo "$server_file" | cut -d'-' -f3)
+  current_build="${current_build%.jar}"
+
+  # Check if select_build variable is set
+  if [ -z "$select_build" ]; then
+    echo "Checking for newer build..."
+    json_response=$(curl -s "$url") # Get all the versions from the paper api
+
+    # Get the latest build number
+    latest_build=$(curl -s $url | jq '.builds[-1].build')
+
+      # Check if the latest build is newer than the current build
+      if [ "$latest_build" -gt "$current_build" ]; then
+          echo "Newer build available: $latest_build"
+
+          # Ask the user if they want to download and install the new build
+          echo
+          echo
+          echo "You have 15 seconds to answer, then the new build will be downloaded automatically"
+          read -t 15 -p "Do you want to download and install the new build? (Y/n) " answer
+          # If the user doesn't answer set the answer to "y"
+          if [ -z "$answer" ]; then
+              answer="y"
+          fi
+          if [ "$answer" == "y" ]; then
+              # Download the new build
+              echo "Downloading the new build..."
+              curl -s "https://api.papermc.io/v2/projects/paper/versions/$version/builds/$latest_build/downloads/paper-$version-$latest_build.jar" -o "./paper-$version-$latest_build.jar"
+              echo "Download complete"
+
+              # Remove the old server file
+              echo "Removing the old server file..."
+              rm "$server_file"
+              echo "Old server file removed"
+
+              server_file=$(basename ./paper-*.jar) 
+          else
+              echo "Skipping download and installation"
+          fi
+          
+      else
+          echo "Server is up to date"
+      fi
+
+  else
+    if [ "$current_build" -ne "$select_build" ]; then
+      echo "The current build is not the selected build"
+      echo "Downloading the selected build..."
+      curl -s "https://api.papermc.io/v2/projects/paper/versions/$version/builds/$select_build/downloads/paper-$version-$select_build.jar" -o "./paper-$version-$select_build.jar"
+      echo "Download complete"
+
+      echo "Removing the old server file..."
+      rm "$server_file"
+      echo "Old server file removed"
+      server_file=$(basename ./paper-*.jar)
+    fi
+  fi
+
+# If no server file exists
+else
+  # Check if select_build variable is set
+  if [ -z "$select_build" ]; then
+    echo "Downloading the latest build of version $version..."
+    json_response=$(curl -s "$url")
+    # Get the latest build number
+    latest_build=$(curl -s $url | jq '.builds[-1].build')
+
+    curl -s "https://api.papermc.io/v2/projects/paper/versions/$version/builds/$latest_build/downloads/paper-$version-$latest_build.jar" -o "./paper-$version-$latest_build.jar"
+    echo "Download complete"
+
+  else
+    echo "Downloading version $version build $select_build..."
+    curl -s "https://api.papermc.io/v2/projects/paper/versions/$version/builds/$select_build/downloads/paper-$version-$select_build.jar" -o "./paper-$version-$select_build.jar"
+    echo "Download complete"
+  fi
+fi
+
+if test "$(cat eula.txt 2>/dev/null)" != "eula=true"; then
+  echo
+  echo
+  echo "'eula.txt' does not exist or is not accepted"
+  echo "Please agree to the Minecraft EULA by entering 'y'"
+  echo "By entering 'y' you are indicating your agreement to Minecraft's EULA (https://aka.ms/MinecraftEULA)."
+  echo "You have 15 seconds to respond, or the script will exit"
+  read -t 15 -p "Do you agree to the Minecraft EULA? [y/N] " eula_agreed
+
+  if [ "$eula_agreed" == "y" ]; then
+    if [ ! -f eula.txt ]; then
+      # Write eula_agreed to eula.txt
+      echo "eula=true" > eula.txt
+    else
+      rm eula.txt
+      echo "eula=true" > eula.txt
+    fi
+    echo
+    echo
+    echo "EULA accepted"
+  else
+    echo
+    echo
+    echo "You did not agree to the Minecraft EULA"
+    echo "Exiting..."
+    exit 1
+  fi
+fi
+
+# Run the server
+echo
+echo
+echo "Starting the server..."
+java $java_launchoptions -jar "$(basename ./paper-*.jar)" $mc_launchoptions