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import argparse
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from pgtools import pgmanager
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from common import config
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class ToolBase:
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def __init__(self, name, desc):
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self.parser = argparse.ArgumentParser(description=desc)
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self.config = config.ConfigParser()
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self.config.add_argument('databases', type=dict)
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self.config.add_argument('meta_db')
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self.config.add_argument('meta_query')
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self.pgm = pgmanager.get_instance()
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def init(self):
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self.config.load('pgtoolkit.conf')
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self.args = self.parser.parse_args()
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def buildconn(self, name, targetname):
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with self.pgm.cursor('meta') as curs:
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curs.execute(self.config.meta_query, [targetname])
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row = curs.fetchone_dict()
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curs.connection.commit()
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if not row:
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raise Exception('Unknown database "%s"' % targetname)
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self.pgm.create_conn(name=name, **row)
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def prepareconns(self, *args):
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if self.config.meta_db:
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self.pgm.create_conn(name='meta', dsn=self.config.meta_db)
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for name in args:
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self.buildconn(name, self.args.__dict__[name])
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self.pgm.close_conn('meta')
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class SimpleTool(ToolBase):
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def __init__(self, name, desc):
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ToolBase.__init__(self, name, desc)
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self.parser.add_argument('target', metavar='target', type=str, help='Target database')
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def init(self):
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ToolBase.init(self)
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self.prepareconns('target')
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class SrcDstTool(ToolBase):
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def __init__(self, name, desc):
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ToolBase.__init__(self, name, desc)
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self.parser.add_argument('src', metavar='source', type=str, help='Source database')
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self.parser.add_argument('dst', metavar='destination', type=str, help='Destination database')
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def init(self):
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ToolBase.init(self)
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self.prepareconns('src', 'dst')
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