Universal start script for python applications with version checking by using git tags, environment creation, auto update of source and dependencies

run.sh

#!/bin/bash

# Check if Git is installed
if ! command -v git &>/dev/null; then
    echo "Error: Git is not installed on your system."
    echo "Please install Git first:"
    echo "  - For Ubuntu/Debian: sudo apt-get install git"
    echo "  - For CentOS/RHEL: sudo yum install git"
    echo "  - For macOS: brew install git"
    echo "  - For Windows: Download from https://git-scm.com/downloads"
    exit 1
fi

# Check if it's a Git repository
if ! git rev-parse --is-inside-work-tree &>/dev/null; then
    echo "Not a Git repository. Auto-update not possible."
else
    # Fetch the latest tags from the remote repository
    git fetch --tags

    # Get the latest version tag (must start with V)
    latest_tag=$(git tag -l "V*" | sort -V | tail -n1)

    if [ -z "$latest_tag" ]; then
        echo "No version tags (starting with V) found on server, could not check for updates."
    else
        # Get current commit hash
        current_commit=$(git rev-parse HEAD)
        # Get commit hash of the latest tag
        tag_commit=$(git rev-parse "$latest_tag^{}")

        # Get tag creation date
        tag_date=$(git log -1 --format=%ai "$latest_tag")
        echo "Latest version: $latest_tag"
        echo "Created on: $tag_date"

        if [ "$current_commit" = "$tag_commit" ]; then
            echo "Already running the latest version ($latest_tag)"
        else
            # Ask for confirmation
            read -p "Do you want to proceed and update to this version? (y/n) " answer
            if [[ $answer == "y" || $answer == "Y" ]]; then
                # Switch to the latest tag
                git checkout "$latest_tag"

                # Optional: Ensure the latest updates from the remote repository
                git pull origin "$latest_tag"

                echo "Updated to version $latest_tag successfully."
            else
                echo "Continuing with current version..."
            fi
        fi
    fi
fi

# Check if ".venv" folder exists, if not create a virtual environment
if [ ! -d ".venv" ]; then
    echo "Creating virtual environment..."
    python3 -m venv .venv
else
    echo "Virtual environment already exists."
fi

# Activate the virtual environment
source .venv/bin/activate

# # Check if "models/xyz.safetensors" exists, if not download it
# if [ ! -f "models/xyz.safetensors ]; then
#     echo "Downloading xyz.safetensors..."
#     mkdir -p models
#     wget -O models/xyz.safetensors "https://domain/file"
# else
#     echo "Model file already exists."
# fi

# Upgrade Python requirements
echo "Upgrading Python requirements..."
pip install --quiet --upgrade pip
pip install --quiet --require-virtualenv --requirement requirements.txt
pip install --quiet --require-virtualenv --requirement requirements-ai.txt

# Function to start the main app
start_main_app() {
    echo "Starting App..."
    python main.py
}

# Function to start the analytics dashboard
start_analytics() {
    echo "Starting Analytics Dashboard..."
    python analytics_dashboard.py
}

# Function to start both components
start_both() {
    echo "Starting both AI Anime Maker and Analytics Dashboard..."
    python main.py & 
    python analytics_dashboard.py &
    wait
}

# Show menu and get user choice
echo "Please select what to start:"
echo "1) AI App"
echo "2) Analytics Dashboard"
echo "3) Both"
read -p "Enter your choice (1): " choice

case $choice in
    1)
        start_main_app
        ;;
    2)
        start_analytics
        ;;
    3)
        start_both
        ;;
    *)
        echo "Invalid choice. Starting app by default..."
        start_main_app
        ;;
esac

# Deactivate the virtual environment when done