def get_cloud_config_value(name, vm_, opts, default=None, search_global=True):
    '''
    Search and return a setting in a known order:

        1. In the virtual machine's configuration
        2. In the virtual machine's profile configuration
        3. In the virtual machine's provider configuration
        4. In the salt cloud configuration if global searching is enabled
        5. Return the provided default
    '''

    # As a last resort, return the default
    value = default

    if search_global is True and opts.get(name, None) is not None:
        # The setting name exists in the cloud(global) configuration
        value = deepcopy(opts[name])

    if vm_ and name:
        # Let's get the value from the profile, if present
        if 'profile' in vm_ and vm_['profile'] is not None:
            if name in opts['profiles'][vm_['profile']]:
                if isinstance(value, dict):
                    value.update(opts['profiles'][vm_['profile']][name].copy())
                else:
                    value = deepcopy(opts['profiles'][vm_['profile']][name])

        # Since using "provider: <provider-engine>" is deprecated, alias provider
        # to use driver: "driver: <provider-engine>"
        if 'provider' in vm_:
            vm_['driver'] = vm_.pop('provider')

        # Let's get the value from the provider, if present.
        if ':' in vm_['driver']:
            # The provider is defined as <provider-alias>:<driver-name>
            alias, driver = vm_['driver'].split(':')
            if alias in opts['providers'] and \
                    driver in opts['providers'][alias]:
                details = opts['providers'][alias][driver]
                if name in details:
                    if isinstance(value, dict):
                        value.update(details[name].copy())
                    else:
                        value = deepcopy(details[name])
        elif len(opts['providers'].get(vm_['driver'], ())) > 1:
            # The provider is NOT defined as <provider-alias>:<driver-name>
            # and there's more than one entry under the alias.
            # WARN the user!!!!
            log.error(
                "The '{0}' cloud provider definition has more than one "
                'entry. Your VM configuration should be specifying the '
                "provider as 'driver: {0}:<driver-engine>'. Since "
                "it's not, we're returning the first definition which "
                'might not be what you intended.'.format(
                    vm_['driver']
                )
            )

        if vm_['driver'] in opts['providers']:
            # There's only one driver defined for this provider. This is safe.
            alias_defs = opts['providers'].get(vm_['driver'])
            provider_driver_defs = alias_defs[next(iter(list(alias_defs.keys())))]
            if name in provider_driver_defs:
                # The setting name exists in the VM's provider configuration.
                # Return it!
                if isinstance(value, dict):
                    value.update(provider_driver_defs[name].copy())
                else:
                    value = deepcopy(provider_driver_defs[name])

    if name and vm_ and name in vm_:
        # The setting name exists in VM configuration.
        if isinstance(vm_[name], types.GeneratorType):
            value = next(vm_[name], '')
        else:
            if isinstance(value, dict):
                value.update(vm_[name].copy())
            else:
                value = deepcopy(vm_[name])

    return value
dataset/ETHPy150Open saltstack/salt/salt/config/__init__.py/get_cloud_config_value/original