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#!/usr/bin/env python
# -------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for
# license information.
# --------------------------------------------------------------------------
"""
Helper utilities for Azure VoiceLive samples.
"""
import os
from pathlib import Path
import sys
from typing import Dict, Optional
def load_env_vars(verbose: bool = True) -> Dict[str, str]:
"""
Load environment variables from .env file if available.
Returns a dictionary of loaded environment variables.
Args:
verbose (bool): Whether to print info about the loaded environment variables
Returns:
Dict[str, str]: Dictionary of loaded environment variables
"""
# Try to import dotenv
try:
from dotenv import load_dotenv
except ImportError:
if verbose:
print("python-dotenv package not found. Environment variables will not be loaded from .env file.")
print("Install with: pip install python-dotenv")
return {}
# Look for .env file in the current directory and parent directories
env_path = find_env_file()
if env_path and os.path.isfile(env_path):
if verbose:
print(f"Loading environment variables from {env_path}")
load_dotenv(env_path)
if verbose:
print("Environment variables loaded successfully")
# Return the loaded environment variables
loaded_vars = {}
with open(env_path, "r") as f:
for line in f:
line = line.strip()
if line and not line.startswith("#") and "=" in line:
key, value = line.split("=", 1)
if key.strip() in os.environ:
loaded_vars[key.strip()] = (
"********" if "KEY" in key or "SECRET" in key else os.environ[key.strip()]
)
if verbose and loaded_vars:
print("Loaded environment variables:")
for key, value in loaded_vars.items():
print(f" {key}: {value}")
return loaded_vars
else:
if verbose:
print("No .env file found. Using existing environment variables.")
return {}
def find_env_file() -> Optional[str]:
"""
Find a .env file by looking in the current directory and walking up the directory tree.
Returns:
Optional[str]: Path to the .env file if found, None otherwise
"""
# Start with the current working directory
current_dir = os.getcwd()
# Check if we're in a sample directory and need to go up to the package root
if os.path.basename(current_dir) == "samples":
# Try the parent directory
parent_dir = os.path.dirname(current_dir)
env_path = os.path.join(parent_dir, ".env")
if os.path.isfile(env_path):
return env_path
# Try the current directory first
env_path = os.path.join(current_dir, ".env")
if os.path.isfile(env_path):
return env_path
# Walk up the directory tree
max_levels = 3 # Limit how far up we go
for _ in range(max_levels):
parent_dir = os.path.dirname(current_dir)
if parent_dir == current_dir: # We've reached the root directory
break
current_dir = parent_dir
env_path = os.path.join(current_dir, ".env")
if os.path.isfile(env_path):
return env_path
# If we didn't find it in the parent directories, check the samples directory
# in case we're running from the package root
script_dir = os.path.dirname(os.path.abspath(__file__))
env_path = os.path.join(script_dir, ".env")
if os.path.isfile(env_path):
return env_path
# Check one level up from the script directory
env_path = os.path.join(os.path.dirname(script_dir), ".env")
if os.path.isfile(env_path):
return env_path
return None
def check_samples_prerequisites():
"""
Check prerequisites for running the samples.
"""
try:
import azure.ai.voicelive
except ImportError:
print("azure-ai-voicelive package is not installed. Install with:")
print("pip install azure-ai-voicelive")
sys.exit(1)
try:
import dotenv
except ImportError:
print("python-dotenv package is not installed. Install with:")
print("pip install python-dotenv")
print("Continuing without .env file support...")
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