Source code for CedarBackup3.actions.purge

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# Copyright (c) 2004-2007,2010,2015 Kenneth J. Pronovici.
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# Author   : Kenneth J. Pronovici <pronovic@ieee.org>
# Language : Python 3 (>= 3.4)
# Project  : Cedar Backup, release 3
# Purpose  : Implements the standard 'purge' action.
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# Module documentation
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"""
Implements the standard 'purge' action.
:author: Kenneth J. Pronovici <pronovic@ieee.org>
"""


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# Imported modules
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# System modules
import logging

# Cedar Backup modules
from CedarBackup3.filesystem import PurgeItemList


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# Module-wide constants and variables
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logger = logging.getLogger("CedarBackup3.log.actions.purge")


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# Public functions
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# executePurge() function
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# pylint: disable=W0613
[docs]def executePurge(configPath, options, config): """ Executes the purge backup action. For each configured directory, we create a purge item list, remove from the list anything that's younger than the configured retain days value, and then purge from the filesystem what's left. Args: configPath (String representing a path on disk): Path to configuration file on disk options (Options object): Program command-line options config (Config object): Program configuration Raises: ValueError: Under many generic error conditions """ logger.debug("Executing the 'purge' action.") if config.options is None or config.purge is None: raise ValueError("Purge configuration is not properly filled in.") if config.purge.purgeDirs is not None: for purgeDir in config.purge.purgeDirs: purgeList = PurgeItemList() purgeList.addDirContents(purgeDir.absolutePath) # add everything within directory purgeList.removeYoungFiles(purgeDir.retainDays) # remove young files *from the list* so they won't be purged purgeList.purgeItems() # remove remaining items from the filesystem logger.info("Executed the 'purge' action successfully.")