text: #!/usr/bin/env python
  # coding=utf-8
  
  import os
  
  from flask_script import Manager, Shell
  from flask_migrate import Migrate, MigrateCommand
  
  from app import create_app, db
  from app.domain.model import User, Role, Post
  
  app = create_app(os.getenv('FLASK_CONFIG') or 'default')
  manager = Manager(app)
  migrate = Migrate(app, db)
  
  def make_shell_context():
      return dict(app=app, db=db, User=User, Role=Role, Post=Post)
  manager.add_command("shell", Shell(make_context=make_shell_context))
  manager.add_command('db', MigrateCommand)
  
  @manager.command
  def test():
      '''Run the unit tests.'''
      import unittest
      tests = unittest.TestLoader().discover('tests')
      unittest.TextTestRunner(verbosity=2).run(tests)
  
  if __name__ == '__main__':
      manager.run()
  