From b2503aafb2b7fc7fbb096bd30e7cb4b74e91579d Mon Sep 17 00:00:00 2001
From: Exos9 <pomamax@proton.me>
Date: Mon, 12 Jan 2026 22:05:50 +0100
Subject: [PATCH] added startup

---
 startup.sh | 115 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 startup.sh

diff --git a/startup.sh b/startup.sh
new file mode 100644
index 0000000..3ddef13
--- /dev/null
+++ b/startup.sh
@@ -0,0 +1,115 @@
+#!/bin/sh
+# Check if Git repo needs updating
+if [ -d .git ]; then
+    echo "Pulling latest changes from the repository..."
+    git pull "https://${GIT_USERNAME}:${GIT_PAT}@${GIT_REPO_URL}" "${GIT_BRANCH}" || true
+fi
+
+# Constants
+EXTENSIONS="yml json conf properties"  # Space-separated list of extensions
+ENV="production"                 # Change this to the environment you need
+DRY_RUN="false"                  # Change to true if you want to simulate changes without modifying files
+MAX_BACKUPS=3                    # Maximum number of backup files to keep
+# Load environment variables from .env.production file
+ENV_FILE=".env.production"
+if [ -f "$ENV_FILE" ]; then
+    echo "Loading environment variables from $ENV_FILE..."
+    # Read each line in .env.production
+    while IFS='=' read -r key value; do
+		# Skip empty lines and comments
+        if [ -z "$key" ] || [ "$(printf '%s' "$key" | cut -c1)" = "#" ]; then
+            continue
+        fi
+        # Remove potential spaces around the variable and export it
+        key=$(echo "$key" | xargs)
+        value=$(echo "$value" | xargs)
+        export "$key=$value"
+    done < "$ENV_FILE"
+    echo "Environment variables loaded successfully."
+else
+    echo "Error: $ENV_FILE not found!"
+    exit 1
+fi
+# Function to escape special characters for sed
+escape_sed_special_chars() {
+    echo "$1" | sed 's/[][\/.^$*]/\\&/g'
+}
+# Function to manage backups
+manage_backups() {
+    local output_file="$1"
+    local timestamp
+    timestamp=$(date +"%Y%m%d_%H%M%S")
+    local backup_file="${output_file}_${timestamp}.bak"
+    
+    # Create backup
+    cp "$output_file" "$backup_file"
+    echo "Backed up $output_file to $backup_file"
+    
+    # Find and remove old backups, keeping only the most recent MAX_BACKUPS
+    find "$(dirname "$output_file")" -maxdepth 1 \
+         -name "$(basename "$output_file")_*.bak" | \
+         sort -r | \
+         tail -n +$((MAX_BACKUPS + 1)) | \
+         xargs -r rm
+}
+
+echo "Environment setup complete. Starting template processing..."
+# Process template files for each extension
+for EXT in $EXTENSIONS; do
+    echo "Processing files with extension .template.$EXT..."
+   
+    # Find template files recursively
+    TEMPLATES=$(find . -type f -name "*.template.$EXT")
+   
+    if [ -z "$TEMPLATES" ]; then
+        echo "No template files found for extension .template.$EXT"
+        continue
+    fi
+   
+    echo "Found the following template files:"
+    echo "$TEMPLATES"
+   
+    echo "$TEMPLATES" | while read -r TEMPLATE_FILE; do
+        # Remove .template from the end to generate output file
+        OUTPUT_FILE="${TEMPLATE_FILE%.template.$EXT}.$EXT"
+        echo "Processing $TEMPLATE_FILE into $OUTPUT_FILE..."
+       
+        if [ "$DRY_RUN" = "true" ]; then
+            echo "Dry run: Would process $TEMPLATE_FILE into $OUTPUT_FILE"
+            continue
+        fi
+        
+        # Create backup if output file already exists
+        if [ -f "$OUTPUT_FILE" ]; then
+            manage_backups "$OUTPUT_FILE"
+        fi
+        
+        # Validate unresolved placeholders
+        UNRESOLVED=$(grep -o '\${[A-Za-z_][A-Za-z0-9_]*}' "$TEMPLATE_FILE" | sed 's/[${}]//g' | while read -r var; do
+            if [ -z "$(eval echo "\$$var")" ]; then
+                echo "$var"
+            fi
+        done)
+        if [ -n "$UNRESOLVED" ]; then
+            echo "Error: Unresolved variables detected in $TEMPLATE_FILE!"
+            echo "Ensure the following variables are defined in $ENV_FILE: $UNRESOLVED"
+            exit 1
+        fi
+        # Replace placeholders with environment variable values
+        sed_script=""
+        while IFS='=' read -r key value; do
+            if [ -n "$key" ] && [ "${key#\#}" = "$key" ]; then
+               escaped_key=$(escape_sed_special_chars "$key")
+               escaped_value=$(escape_sed_special_chars "$(eval echo "\$$key")")
+              sed_script="${sed_script}s|\${${escaped_key}}|${escaped_value}|g;"
+            fi
+        done < "$ENV_FILE"
+        # Generate the output file
+        sed -e "$sed_script" "$TEMPLATE_FILE" > "$OUTPUT_FILE"
+        echo "Processed $TEMPLATE_FILE into $OUTPUT_FILE"
+    done
+done
+echo "Template processing complete. Starting the server in 5 seconds..."
+sleep 5
+
+java -Xms${SERVER_MIN_MEMORY}M -Xmx${SERVER_MEMORY}M --add-modules=jdk.incubator.vector -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -jar ${SERVER_JARFILE} --nogui
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