зеркало из https://github.com/Azure/azfilebackup.git
49 строки
1.8 KiB
Python
49 строки
1.8 KiB
Python
# coding=utf-8
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"""BackupConfigurationFile module."""
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import re
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import logging
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import os.path
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from .backupexception import BackupException
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class BackupConfigurationFile(object):
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"""Parse the backup configuration file."""
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def __init__(self, filename):
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if not os.path.isfile(filename):
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raise BackupException("Cannot find configuration file {}:".format(filename))
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self.filename = filename
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try:
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vals = BackupConfigurationFile.read_key_value_file(filename=self.filename)
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logging.debug("Configuration %s", str(vals))
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except Exception as ex:
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raise BackupException("Error parsing config file {}:\n{}".format(filename, ex.message))
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def get_value(self, key):
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""" Parse a configuration file and return a single value."""
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values = BackupConfigurationFile.read_key_value_file(filename=self.filename)
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return values[key]
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def get_keys_prefix(self, prefix):
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"""Retrieve all keys that match a certain prefix."""
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values = BackupConfigurationFile.read_key_value_file(filename=self.filename)
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return [i for i in values.keys() if re.match(prefix, i)]
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@staticmethod
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def read_key_value_file(filename):
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"""
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Parse a configuration file and return a dictionary of key/values.
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>>> values = BackupConfigurationFile.read_key_value_file(filename="config.txt")
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>>> values["local_temp_directory"]
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'/tmp'
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"""
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with open(filename, mode='rt') as config_file:
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lines = config_file.readlines()
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# skip comments and empty lines
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content_lines = [line for line in lines if not re.match(r"^\s*#|^\s*$", line)]
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content = dict(line.split(":", 1) for line in content_lines)
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return dict([(x[0].strip(), x[1].strip()) for x in content.iteritems()])
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