pysize/main.py

   1 import sys
   2 import os
   3 import optparse
   4 import locale
   5
   6 from pysize.ui.ascii import ui_ascii
   7 from pysize.ui.curses import ui_curses
   8 from pysize.ui.gtk import ui_gtk
   9 from pysize.core.sigquit_traceback import install_sigquit_traceback
  10
  11 def _ui_auto(options, args):
  12     """Automatically choose the best available UI."""
  13     if ui_gtk.is_available():
  14         return ui_gtk.run(options, args)
  15
  16     if ui_curses.is_available():
  17         return ui_curses.run(options, args)
  18
  19     if ui_ascii.is_available():
  20         return ui_ascii.run(options, args)
  21
  22     print 'No UI available'
  23
  24 UI = {'ascii': ui_ascii.run, 'curses': ui_curses.run,
  25       'gtk': ui_gtk.run, 'auto': _ui_auto}
  26
  27 def _profile(continuation):
  28     try:
  29         import cProfile
  30         import pstats
  31         print 'Profiling using cProfile'
  32         cProfile.runctx('continuation()', globals(), locals(), 'pysize.prof')
  33         stats = pstats.Stats('pysize.prof')
  34     except ImportError:
  35         import hotshot
  36         import hotshot.stats
  37         prof = hotshot.Profile('pysize.prof')
  38         print 'Profiling using hotshot'
  39         prof.runcall(continuation)
  40         prof.close()
  41         stats = hotshot.stats.load('pysize.prof')
  42     stats.strip_dirs()
  43     stats.sort_stats('time', 'calls')
  44     stats.print_stats(40)
  45
  46 def _try_psyco():
  47     try:
  48         # Try to use psyco if available
  49         import psyco
  50         psyco.full()
  51     except ImportError:
  52         pass
  53
  54 def main():
  55     install_sigquit_traceback()
  56     _try_psyco()
  57     locale.setlocale(locale.LC_ALL, '')
  58     usage = '%s [OPTIONS] [DIRECTORIES...]' % (sys.argv[0])
  59     parser = optparse.OptionParser(usage=usage)
  60     parser.add_option('--ui', type='choice', choices=UI.keys(), default='auto',
  61                       help='choose the ui between: [auto], gtk, curses, ascii')
  62     parser.add_option('--max-depth', type='int', dest='max_depth', default=5,
  63                       metavar='DEPTH',
  64                       help='maximum depth of the displayed tree [5]')
  65     parser.add_option('--min-size', type='str', dest='min_size', default='auto',
  66                       metavar='SIZE',
  67                       help='minimum size to consider drawing [auto]')
  68     parser.add_option('--fast-drawing', action='store_true', dest='fast',
  69                       default=False, help='faster but simpler drawing with GTK')
  70     parser.add_option('--profile', action='store_true', dest='profile',
  71                       default=False, help=optparse.SUPPRESS_HELP)
  72     (options, args) = parser.parse_args()
  73
  74     if options.max_depth < 2:
  75         parser.error('maximum depth must be at least 2')
  76
  77     # Default path if none given
  78     if len(args) == 0:
  79         args = ['.']
  80
  81     args = map(os.path.realpath, args)
  82     continuation = lambda: UI[options.ui](options, args)
  83
  84     if options.profile:
  85         _profile(continuation)
  86     else:
  87         continuation()
  88
  89 if __name__ == '__main__':
  90     main()