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#!/bin/bash
#
# Setup script for Python virtual environment
# This script creates a virtual environment and installs required packages
#
set -e # Exit on error
# Get the directory where this script is located
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
VENV_DIR="${SCRIPT_DIR}/venv"
REQUIREMENTS_FILE="${SCRIPT_DIR}/requirements.txt"
# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color
echo -e "${GREEN}Setting up Python virtual environment...${NC}"
# Check if Python 3 is available
if ! command -v python3 &> /dev/null; then
echo -e "${RED}Error: python3 is not installed. Please install Python 3 first.${NC}"
exit 1
fi
# Check if python3-venv is installed (required for venv module)
if ! python3 -m venv --help &> /dev/null; then
echo -e "${YELLOW}Warning: python3-venv module not found. Attempting to install...${NC}"
if command -v apt-get &> /dev/null; then
echo "Please run: sudo apt-get install python3-venv python3-full"
exit 1
else
echo -e "${RED}Error: Cannot create virtual environment. Please install python3-venv.${NC}"
exit 1
fi
fi
# Check if virtual environment exists and is valid
if [ ! -d "$VENV_DIR" ]; then
echo -e "${GREEN}Creating virtual environment in ${VENV_DIR}...${NC}"
python3 -m venv "$VENV_DIR"
echo -e "${GREEN}Virtual environment created successfully.${NC}"
elif [ ! -f "${VENV_DIR}/bin/activate" ]; then
echo -e "${YELLOW}Virtual environment directory exists but is incomplete. Recreating...${NC}"
rm -rf "$VENV_DIR"
python3 -m venv "$VENV_DIR"
echo -e "${GREEN}Virtual environment recreated successfully.${NC}"
else
echo -e "${YELLOW}Virtual environment already exists at ${VENV_DIR}${NC}"
fi
# Verify activate script exists before sourcing
if [ ! -f "${VENV_DIR}/bin/activate" ]; then
echo -e "${RED}Error: Virtual environment activation script not found at ${VENV_DIR}/bin/activate${NC}"
echo -e "${RED}Please remove the venv directory and run this script again:${NC}"
echo -e " rm -rf ${VENV_DIR}"
exit 1
fi
# Activate virtual environment
echo -e "${GREEN}Activating virtual environment...${NC}"
source "${VENV_DIR}/bin/activate"
# Upgrade pip
echo -e "${GREEN}Upgrading pip...${NC}"
pip install --upgrade pip --quiet
# Install requirements if requirements.txt exists
if [ -f "$REQUIREMENTS_FILE" ]; then
echo -e "${GREEN}Installing requirements from ${REQUIREMENTS_FILE}...${NC}"
pip install -r "$REQUIREMENTS_FILE"
echo -e "${GREEN}Requirements installed successfully.${NC}"
else
echo -e "${YELLOW}Warning: ${REQUIREMENTS_FILE} not found. Skipping requirements installation.${NC}"
fi
echo -e "${GREEN}Setup complete!${NC}"
echo ""
echo -e "${YELLOW}To activate the virtual environment in the future, run:${NC}"
echo -e " source ${VENV_DIR}/bin/activate"
echo ""
echo -e "${YELLOW}To deactivate, run:${NC}"
echo -e " deactivate"
echo ""
echo -e "${YELLOW}To run scripts with the virtual environment:${NC}"
echo -e " ${VENV_DIR}/bin/python ${SCRIPT_DIR}/db-bck.py"