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python/stripirssi.py
author Jeff Hammel <jhammel@mozilla.com>
date Fri, 09 Aug 2013 14:21:49 -0700
parents 364ddd44fd82
children f81fdc6926fd
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/env python
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2
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3 import optparse
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4 import os
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5 import sys
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6
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7 """
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8 strip irssi comments and format
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9 """
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10
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11 # TODO : -> textshaper
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12
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13 ### generic functionality
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14
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15 string = (basestring,)
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16
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17 class splitlines(object):
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18 def __init__(self, function):
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19 self.function = function
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20 def __call__(self, lines, *args, **kwargs):
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21 if isinstance(lines, string):
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22 lines = lines.strip().splitlines()
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23 self.function(lines, *args, **kwargs)
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24
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25 @splitlines
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26 def strip(lines):
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27 return [line.strip() for line in lines]
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28
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29 @splitlines
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30 def strip_first_column(lines, separator=None):
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31 """
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32 removes leading column (defined by separator) from lines of text
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33 """
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34 # TODO: -> genericize
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35 # - and handle whitespace more generically
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36
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37 length = None # length of first column
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38 stripped = []
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39 for line in lines:
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40 if not line:
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41 continue # XXX desirable?
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42 prefix, rest = line.split(separator, 1)
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43 if length is None:
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44 length = len(prefix)
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45 else:
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46 if len(prefix) != length:
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47 if not line[:len(prefix)].isspace():
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48 raise AssertionError("Non whitespace found below pre (%s) in line %s" % (length, line))
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49 stripped.append(line[length:])
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50 return stripped
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51
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52 @splitlines
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53 def remove_lines(lines, startswith):
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54 return [line for line in lines
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55 if line.startswith(startswith)]
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56 # really, one could take most functions for str and map -> lines
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57
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58 @splitlines
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59 def remove_time(lines):
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60 """removes leading 24 hour timestamp: HH:MM"""
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61 # XXX :ss?
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62
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63 @splitlines
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64 def join(lines):
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65 """DOCUMENT ME!"""
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66 last = None
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67 joined = []
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68 for line in lines:
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69 if line:
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70 if line[0].isspace():
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71 line = line.strip()
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72 if not line:
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73 if last:
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74 joined.append(last)
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75 continue
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76 if last:
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77 last = '%s %s' % (last, line.strip())
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78 else:
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79 joined.append(line.strip())
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80 else:
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81 if last:
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82 joined.append(last)
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83 last = line.rstrip()
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84 else:
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85 if last:
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86 joined.append(last)
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87 return joined
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88
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89 ### CLI
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90
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91 def main(args=sys.argv[1:]):
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92
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93 usage = '%prog [options]'
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94 parser = optparse.OptionParser(usage=usage, description=__doc__)
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95 parser.add_option('-i', '--in-place', dest='in_place',
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96 help="rewrite files in place")
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97 # parser.add_option - strip timestamps only
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98 # parser.add_option - strip nicks
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99 options, args = parser.parse_args(args)
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100
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101 log = sys.stdin.read().strip()
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102
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103 # strip timestamps
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104 lines = strip_first_column(log)
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105
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106 print '\n'.join(lines)
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107
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108 if __name__ == '__main__':
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109 main()