aws-cli/awscli/plugin.py at develop · emate/aws-cli · GitHub

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# Licensed under the Apache License, Version 2.0 (the "License"). You

# may not use this file except in compliance with the License. A copy of

# the License is located at

# http://aws.amazon.com/apache2.0/

# or in the "license" file accompanying this file. This file is

# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF

# ANY KIND, either express or implied. See the License for the specific

# language governing permissions and limitations under the License.

import logging

from botocore.hooks import HierarchicalEmitter

log = logging.getLogger('awscli.plugin')

BUILTIN_PLUGINS = {'__builtin__': 'awscli.handlers'}

def load_plugins(plugin_mapping, event_hooks=None, include_builtins=True):

"""

:type plugin_mapping: dict

:param plugin_mapping: A dict of plugin name to import path,

e.g. ``{"plugingName": "package.modulefoo"}``.

:type event_hooks: ``EventHooks``

:param event_hooks: Event hook emitter. If one if not provided,

an emitter will be created and returned. Otherwise, the

passed in ``event_hooks`` will be used to initialize plugins.

:type include_builtins: bool

:param include_builtins: If True, the builtin awscli plugins (specified in

``BUILTIN_PLUGINS``) will be included in the list of plugins to load.

:rtype: HierarchicalEmitter

:return: An event emitter object.

"""

if include_builtins:

plugin_mapping.update(BUILTIN_PLUGINS)

modules = _import_plugins(plugin_mapping)

if event_hooks is None:

event_hooks = HierarchicalEmitter()

for name, plugin in zip(plugin_mapping.keys(), modules):

log.debug("Initializing plugin %s: %s", name, plugin)

plugin.awscli_initialize(event_hooks)

return event_hooks

def _import_plugins(plugin_names):

plugins = []

for name, path in plugin_names.items():

log.debug("Importing plugin %s: %s", name, path)

if '.' not in path:

plugins.append(__import__(path))

else:

package, module = path.rsplit('.', 1)

module = __import__(path, fromlist=[module])

plugins.append(module)

return plugins

aws-cli/awscli/plugin.py at develop · emate/aws-cli · GitHub

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