annotate python/multigrep.py @ 760:d0b975ffabdf

http://serverfault.com/questions/132055/how-to-check-if-emacs-is-in-gui-mode-and-execute-tool-bar-mode-only-then
author Jeff Hammel <k0scist@gmail.com>
date Tue, 15 Dec 2015 12:32:34 -0800
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1 #!/usr/bin/env python
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2
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3 """
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4 grep through multiple directories
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5 """
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6
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7 # TODO: use a python grep implemention v subshell (probably)
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8
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9 import optparse
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10 import os
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11 import subprocess
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12 import sys
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13
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14 def main(args=sys.argv[1:]):
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15
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16 # CLI
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17 usage = '%prog [options] PATTERN DIRECTORY [DIRECTORY] [...]'
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18 parser = optparse.OptionParser(usage=usage, description=__doc__)
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19 parser.add_option('-f', '--files', dest='files', default='*',
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20 help="file pattern [DEFAULT: %default]")
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21 parser.add_option('-g', '--grep', dest='grep',
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22 action='append', default=[],
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23 help="`grep` command [DEFAULT: grep]")
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24 parser.add_option('-p', '--print', dest='print_commands',
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25 action='store_true', default=False,
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26 help="print grep commands to run and exit")
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27 options, args = parser.parse_args(args)
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28 if len(args) < 2:
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29 parser.print_help()
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30 parser.exit()
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31 options.grep = options.grep or ['grep']
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32 pattern, directories = args[0], args[1:]
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33
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34 # verify directories
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35 missing = [i for i in directories
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36 if not os.path.isdir(i)]
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37 if missing:
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38 sep = '\n '
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39 parser.error("Not a directory:%s%s" % (sep, sep.join(missing)))
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40
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41 # build command line
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42 command = options.grep[:]
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43 command.extend([pattern, options.files])
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44 cwd = os.getcwd()
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45
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46 if options.print_commands:
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47 # print grep commands
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48 for directory in directories:
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49 print "cd %s; %s" % (repr(directory), subprocess.list2cmdline(command))
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50 print "cd %s" % (repr(cwd))
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51 parser.exit()
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52
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53 # loop through directories
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54 for directory in directories:
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55 print directory
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56 subprocess.call(subprocess.list2cmdline(command),
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57 cwd=directory,
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58 shell=True)
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59
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60 if __name__ == '__main__':
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61 main()