|
|
|
|
# Copyright (C) 2020 Red Hat, Inc.
|
|
|
|
|
#
|
|
|
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
|
|
|
# you may not use this file except in compliance with the License.
|
|
|
|
|
# You may obtain a copy of the License at
|
|
|
|
|
#
|
|
|
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
|
#
|
|
|
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
|
|
|
# distributed under the License 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 argparse
|
|
|
|
|
|
|
|
|
|
from stevedore import extension
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
|
|
parser = argparse.ArgumentParser()
|
|
|
|
|
parser.add_argument(
|
|
|
|
|
'--width',
|
|
|
|
|
default=60,
|
|
|
|
|
type=int,
|
|
|
|
|
help='maximum output width for text',
|
|
|
|
|
)
|
|
|
|
|
parsed_args = parser.parse_args()
|
|
|
|
|
|
|
|
|
|
data = {
|
|
|
|
|
'a': 'A',
|
|
|
|
|
'b': 'B',
|
|
|
|
|
'long': 'word ' * 80,
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
mgr = extension.ExtensionManager(
|
|
|
|
|
namespace='stevedore.example.formatter',
|
|
|
|
|
invoke_on_load=True,
|
|
|
|
|
invoke_args=(parsed_args.width,),
|
|
|
|
|
)
|
|
|
|
|
|
|
|
|
|
def format_data(ext, data):
|
|
|
|
|
return (ext.name, ext.obj.format(data))
|
|
|
|
|
|
|
|
|
|
results = mgr.map(format_data, data)
|
|
|
|
|
|
|
|
|
|
for name, result in results:
|
|
|
|
|
print('Formatter: {0}'.format(name))
|
|
|
|
|
for chunk in result:
|
|
|
|
|
print(chunk, end='')
|
|
|
|
|
print('')
|
