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1 #!/usr/bin/env python
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2 # -*- coding: utf-8 -*-
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3
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4 """
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5 sql(ite) explorer/exporter
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6 """
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7
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8 # imports
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9 import argparse
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10 import os
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1
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11 import sqlite3
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12 import sys
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13
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14 def ensure_dir(directory):
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15 """ensure a directory exists"""
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16 if os.path.exists(directory):
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17 if not os.path.isdir(directory):
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18 raise OSError("Not a directory: '{}'".format(directory))
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19 return directory
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20 os.makedirs(directory)
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21 return directory
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22
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23
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24 class SQLExParser(argparse.ArgumentParser):
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25 """CLI option parser"""
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26
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27 def __init__(self, **kwargs):
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28 kwargs.setdefault('formatter_class', argparse.RawTextHelpFormatter)
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29 kwargs.setdefault('description', __doc__)
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30 argparse.ArgumentParser.__init__(self, **kwargs)
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31 self.add_argument('db',
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32 help="sqlite `.db` file")
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33 self.add_argument(
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34 self.options = None
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35
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36 def parse_args(self, *args, **kw):
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37 options = argparse.ArgumentParser.parse_args(self, *args, **kw)
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38 self.validate(options)
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39 self.options = options
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40 return options
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41
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42 def validate(self, options):
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43 """validate options"""
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44
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1
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45 try:
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46 open(options.db)
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47 except Exception as e:
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48 self.error("Could not open '{}': {}".format(options.db, e))
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49
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2
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50
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51 def main(args=sys.argv[1:]):
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52 """CLI"""
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53
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54 # parse command line options
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55 parser = SQLExParser()
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56 options = parser.parse_args(args)
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57
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58 if __name__ == '__main__':
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59 main()
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60
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61
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