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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 echo core name of files
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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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11 import sys
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12
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13 # module globals
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14 __all__ = ['main', 'Parser']
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15
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16 def ensure_dir(directory):
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17 """ensure a directory exists"""
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18 if os.path.exists(directory):
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19 if not os.path.isdir(directory):
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20 raise OSError("Not a directory: '{}'".format(directory))
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21 return directory
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22 os.makedirs(directory)
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23 return directory
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24
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25
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26 class Parser(argparse.ArgumentParser):
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27 """CLI option parser"""
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28 def __init__(self, **kwargs):
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29 kwargs.setdefault('formatter_class', argparse.RawTextHelpFormatter)
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30 kwargs.setdefault('description', __doc__)
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31 argparse.ArgumentParser.__init__(self, **kwargs)
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32 self.add_argument('files', nargs='*',
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33 help="files, else read from stdin")
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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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45 def main(args=sys.argv[1:]):
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46 """CLI"""
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47
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48 # parse command line options
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49 parser = Parser()
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50 options = parser.parse_args(args)
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51
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52 if not options.files:
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53 options.files = sys.stdin.read().strip().split()
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54
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55 corenames = [os.path.splitext(os.path.basename(f))[0]
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56 for f in options.files]
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57 print (" ".join(corenames))
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58
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59 if __name__ == '__main__':
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60 main()
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61
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62
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