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20
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1 #!/usr/bin/env python
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2
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3 from __future__ import print_function
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4
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5 import optparse
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6 import os.path
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7 import sys
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8
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9 from query_db import describe_tables, get_connection, run_query
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10
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11
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12 def __main__():
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13 # Parse Command Line
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14 parser = optparse.OptionParser()
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15 parser.add_option('-s', '--sqlitedb', dest='sqlitedb', default=None,
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16 help='The SQLite Database')
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17 parser.add_option('-q', '--query', dest='query', default=None,
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18 help='SQL query')
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19 parser.add_option('-Q', '--query_file', dest='query_file', default=None,
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20 help='SQL query file')
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21 parser.add_option('-n', '--no_header', dest='no_header', default=False,
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22 action='store_true',
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23 help='Include a column headers line')
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24 parser.add_option('-o', '--output', dest='output', default=None,
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25 help='Output file for query results')
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26 (options, args) = parser.parse_args()
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27
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28 # determine output destination
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29 if options.output is not None:
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30 try:
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31 outputPath = os.path.abspath(options.output)
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32 outputFile = open(outputPath, 'w')
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33 except Exception as e:
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22
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34 exit('Error: %s' % (e))
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20
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35 else:
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36 outputFile = sys.stdout
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37
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38 query = None
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39 if (options.query_file is not None):
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40 with open(options.query_file, 'r') as fh:
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41 query = ''
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42 for line in fh:
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43 query += line
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44 elif (options.query is not None):
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45 query = options.query
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46
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47 if (query is None):
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48 try:
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49 describe_tables(get_connection(options.sqlitedb), outputFile)
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22
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50 except Exception as e:
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51 exit('Error: %s' % (e))
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20
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52 exit(0)
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53 else:
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54 try:
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55 run_query(get_connection(options.sqlitedb), query, outputFile,
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56 no_header=options.no_header)
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22
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57 except Exception as e:
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58 exit('Error: %s' % (e))
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20
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59
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60
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61 if __name__ == "__main__":
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62 __main__()
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