Manage Project-Specific Environment Variables

#!/bin/bash

# Usage: source setup_env.sh or . setup_env.sh
# This script should be sourced, not executed directly, to affect the current shell.

ENV_FILE=".env" # Default environment file name

# Check if .env file exists
if [ -f "$ENV_FILE" ]; then
  echo "Loading environment variables from $ENV_FILE..."
  # Read .env file line by line
  while IFS='=' read -r key value; do
    # Skip comments and empty lines
    if [[ "$key" =~ ^#.* ]] || [[ -z "$key" ]]; then
      continue
    fi

    # Remove leading/trailing whitespace and quotes from value
    value=$(echo "$value" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//' -e 's/^"//' -e 's/"$//' -e "s/^'//" -e "s/'$//")

    # Export the variable
    export "$key"="$value"
    echo "Exported: $key"
  done < "$ENV_FILE"
  echo "Environment variables loaded."
else
  echo "Error: .env file not found at $(pwd)/$ENV_FILE"
  echo "Please create one with key=value pairs."
  # Optionally, exit or handle the error differently
  # exit 1
fi

# Example of how to use it after sourcing:
# echo "DATABASE_URL: $DATABASE_URL"
# echo "API_KEY: $API_KEY"