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import configparser |
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import os |
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import sqlite3 |
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from backuppc_clone.command.BaseCommand import BaseCommand |
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from backuppc_clone.exception.BackupPcCloneException import BackupPcCloneException |
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View Code Duplication |
class InitCloneCommand(BaseCommand): |
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""" |
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Creates the configuration file for a clone |
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init-clone |
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""" |
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parameters = [('SCHEMA_VERSION', 'schema version', '1'), |
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('LAST_POOL_SYNC', 'timestamp of last original pool scan', '-1')] |
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# ------------------------------------------------------------------------------------------------------------------ |
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def __create_dirs(self, top_dir_clone: str) -> None: |
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""" |
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Creates required directories under the top dir of the clone. |
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@param str top_dir_clone: The top directory of the clone. |
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""" |
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os.chmod(top_dir_clone, 0o770) |
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self._io.writeln(' Creating directories') |
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dir_names = ['cpool', 'pool', 'etc', 'pc', 'tmp', 'trash'] |
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for dir_name in dir_names: |
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path = os.path.join(top_dir_clone, dir_name) |
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if not os.path.isdir(path): |
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self._io.log_verbose('Creating directory <fso>{}</fso>'.format(dir_name)) |
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os.mkdir(path, 0o700) |
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# ------------------------------------------------------------------------------------------------------------------ |
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def __create_database(self, db_path: str) -> None: |
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""" |
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Creates the metadata database. |
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@param str db_path: The path to the SQLite database. |
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""" |
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sql_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), |
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'..', |
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'lib', |
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'ddl', |
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'0100_create_tables.sql') |
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with open(sql_path) as file: |
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sql = file.read() |
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self._io.section('Creating metadata database') |
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self._io.writeln(' Initializing <fso>{}</fso>'.format(db_path)) |
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connection = sqlite3.connect(db_path) |
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cursor = connection.cursor() |
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cursor.executescript(sql) |
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for parameter in self.parameters: |
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cursor.execute('insert into BKC_PARAMETER(prm_code, prm_description, prm_value) values(?, ?, ?)', |
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parameter) |
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connection.commit() |
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connection.close() |
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# ------------------------------------------------------------------------------------------------------------------ |
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def __writing_config_clone(self, |
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config_filename_clone: str, |
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config_filename_original: str, |
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name_clone: str, |
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name_master: str) -> None: |
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""" |
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Creates the config file for the clone. |
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@param str config_filename_clone: The path to the config file of the clone. |
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@param str config_filename_original: The path to the config file of the original. |
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@param str name_clone: The name of the clone. |
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@param str name_master: The name of the master. |
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""" |
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self._io.writeln(' Writing <fso>{}</fso>'.format(config_filename_clone)) |
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config = configparser.ConfigParser() |
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config['BackupPC Clone'] = {'role': 'clone', |
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'name': name_clone} |
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config['Original'] = {'config': config_filename_original, |
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'name': name_master} |
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with open(config_filename_clone, 'w') as config_file: |
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config.write(config_file) |
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# ------------------------------------------------------------------------------------------------------------------ |
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def _init_singletons(self) -> None: |
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""" |
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Omits the creating of singleton objects. |
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""" |
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pass |
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# ------------------------------------------------------------------------------------------------------------------ |
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def _handle_command(self) -> None: |
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""" |
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Executes the command. |
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""" |
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self._io.title('Initializing Clone') |
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self._io.section('Creating configuration file') |
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top_dir_original = self.ask('top dir of the original', '/var/lib/BackupPC') |
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config_filename_original = os.path.join(top_dir_original, 'original.cfg') |
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if not os.path.isfile(config_filename_original): |
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raise BackupPcCloneException( |
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'Configuration file {} of original not found'.format(config_filename_original)) |
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config_original = configparser.ConfigParser() |
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config_original.read(config_filename_original) |
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top_dir_clone = None |
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while top_dir_clone is None or not os.path.isdir(top_dir_clone): |
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top_dir_clone = self.ask('top dir of the clone') |
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name_clone = self.ask('name of clone', config_original['BackupPC Clone']['name'] + '-clone') |
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config_filename_clone = os.path.join(top_dir_clone, 'clone.cfg') |
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if os.path.isfile(config_filename_clone): |
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create = self.confirm('Overwrite {}'.format(config_filename_clone), False) |
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else: |
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create = True |
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if create: |
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self.__writing_config_clone(config_filename_clone, |
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config_filename_original, |
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name_clone, |
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config_original['BackupPC Clone']['name']) |
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self.__create_dirs(top_dir_clone) |
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self._io.writeln('') |
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self.__create_database(os.path.join(top_dir_clone, 'clone.db')) |
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else: |
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self._io.warning('No configuration file created') |
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# ---------------------------------------------------------------------------------------------------------------------- |
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SetBased /
BackupPC-Clone
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