b9c065de28
The args agument was only used to find the symbol for the getval command. Have the command pass the symbol to find in directly. We can therefore remove the args paramater to the BlockDevice() creation. Change-Id: I8e357131b70a00e4a2c4792c009f6058d1d5ae9e
124 lines
4.1 KiB
Python
124 lines
4.1 KiB
Python
# Copyright 2016-2017 Andreas Florath (andreas@florath.net)
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import argparse
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import logging
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import os
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import sys
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import yaml
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from diskimage_builder.block_device.blockdevice import BlockDevice
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from diskimage_builder import logging_config
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logger = logging.getLogger(__name__)
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class BlockDeviceCmd(object):
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def cmd_init(self):
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self.bd.cmd_init()
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def cmd_getval(self):
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self.bd.cmd_getval(self.args.symbol)
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def cmd_create(self):
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self.bd.cmd_create()
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def cmd_umount(self):
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self.bd.cmd_umount()
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def cmd_cleanup(self):
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self.bd.cmd_cleanup()
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def cmd_delete(self):
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self.bd.cmd_delete()
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def cmd_writefstab(self):
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self.bd.cmd_writefstab()
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def main(self):
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logging_config.setup()
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parser = argparse.ArgumentParser(description="DIB Block Device helper")
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parser.add_argument('--params', required=False,
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help="YAML file containing parameters for"
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"block-device handling. Default is "
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"DIB_BLOCK_DEVICE_PARAMS_YAML")
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subparsers = parser.add_subparsers(title='commands',
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description='valid commands',
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dest='command',
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help='additional help')
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cmd_init = subparsers.add_parser('init',
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help='Initialize configuration')
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cmd_init.set_defaults(func=self.cmd_init)
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cmd_getval = subparsers.add_parser('getval',
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help='Retrieve information about'
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'internal state')
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cmd_getval.set_defaults(func=self.cmd_getval)
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cmd_getval.add_argument('symbol', help='symbol to print')
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cmd_create = subparsers.add_parser('create',
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help='Create the block device')
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cmd_create.set_defaults(func=self.cmd_create)
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cmd_umount = subparsers.add_parser('umount',
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help='Unmount blockdevice and'
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'cleanup resources')
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cmd_umount.set_defaults(func=self.cmd_umount)
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cmd_cleanup = subparsers.add_parser('cleanup', help='Final cleanup')
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cmd_cleanup.set_defaults(func=self.cmd_cleanup)
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cmd_delete = subparsers.add_parser('delete', help='Error cleanup')
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cmd_delete.set_defaults(func=self.cmd_delete)
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cmd_writefstab = subparsers.add_parser('writefstab',
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help='Create fstab for system')
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cmd_writefstab.set_defaults(func=self.cmd_writefstab)
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self.args = parser.parse_args()
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# Find, open and parse the parameters file
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if not self.args.params:
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if 'DIB_BLOCK_DEVICE_PARAMS_YAML' in os.environ:
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param_file = os.environ['DIB_BLOCK_DEVICE_PARAMS_YAML']
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else:
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parser.error(
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"DIB_BLOCK_DEVICE_PARAMS_YAML or --params not set")
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else:
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param_file = self.args.params
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logger.info("params [%s]" % param_file)
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try:
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with open(param_file) as f:
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self.params = yaml.safe_load(f)
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except Exception:
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logger.exception("Failed to open parameter YAML")
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sys.exit(1)
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# Setup main BlockDevice object from args
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self.bd = BlockDevice(self.params)
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self.args.func()
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def main():
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bdc = BlockDeviceCmd()
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return bdc.main()
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if __name__ == "__main__":
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sys.exit(main())
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