pysize/main.py

   1 # This program is free software; you can redistribute it and/or modify
   2 # it under the terms of the GNU General Public License as published by
   3 # the Free Software Foundation; either version 2 of the License, or
   4 # (at your option) any later version.
   5 #
   6 # This program is distributed in the hope that it will be useful,
   7 # but WITHOUT ANY WARRANTY; without even the implied warranty of
   8 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   9 # GNU Library General Public License for more details.
  10 #
  11 # You should have received a copy of the GNU General Public License
  12 # along with this program; if not, write to the Free Software
  13 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  14 #
  15 # See the COPYING file for license information.
  16 #
  17 # Copyright (c) 2006 Guillaume Chazarain <guichaz@yahoo.fr>
  18
  19 import sys
  20 import os
  21 import optparse
  22 import locale
  23
  24 from pysize.ui.ascii import ui_ascii
  25 from pysize.ui.curses import ui_curses
  26 from pysize.ui.gtk import ui_gtk
  27 from pysize.core.sigquit_traceback import install_sigquit_traceback
  28
  29 def _ui_auto(options, args):
  30     """Automatically choose the best available UI."""
  31     if ui_gtk.is_available():
  32         return ui_gtk.run(options, args)
  33
  34     if ui_curses.is_available():
  35         return ui_curses.run(options, args)
  36
  37     if ui_ascii.is_available():
  38         return ui_ascii.run(options, args)
  39
  40     print 'No UI available'
  41
  42 UI = {'ascii': ui_ascii.run, 'curses': ui_curses.run,
  43       'gtk': ui_gtk.run, 'auto': _ui_auto}
  44
  45 def _profile(continuation):
  46     try:
  47         import cProfile
  48         import pstats
  49         print 'Profiling using cProfile'
  50         cProfile.runctx('continuation()', globals(), locals(), 'pysize.prof')
  51         stats = pstats.Stats('pysize.prof')
  52     except ImportError:
  53         import hotshot
  54         import hotshot.stats
  55         prof = hotshot.Profile('pysize.prof')
  56         print 'Profiling using hotshot'
  57         prof.runcall(continuation)
  58         prof.close()
  59         stats = hotshot.stats.load('pysize.prof')
  60     stats.strip_dirs()
  61     stats.sort_stats('time', 'calls')
  62     stats.print_stats(40)
  63
  64 def _try_psyco():
  65     try:
  66         # Try to use psyco if available
  67         import psyco
  68         psyco.full()
  69     except ImportError:
  70         pass
  71
  72 def main():
  73     install_sigquit_traceback()
  74     _try_psyco()
  75     locale.setlocale(locale.LC_ALL, '')
  76     usage = '%s [OPTIONS] [DIRECTORIES...]' % (sys.argv[0])
  77     parser = optparse.OptionParser(usage=usage)
  78     parser.add_option('--ui', type='choice', choices=UI.keys(), default='auto',
  79                       help='choose the ui between: [auto], gtk, curses, ascii')
  80     parser.add_option('--xdev', action='store_false', dest='cross_device',
  81                       default=True,
  82                       help="ignore directories on other filesystems")
  83     parser.add_option('--max-depth', type='int', dest='max_depth', default=5,
  84                       metavar='DEPTH',
  85                       help='maximum depth of the displayed tree [5]')
  86     parser.add_option('--min-size', type='str', dest='min_size', default='auto',
  87                       metavar='SIZE',
  88                       help='minimum size to consider drawing [auto]')
  89     parser.add_option('--fast-drawing', action='store_true', dest='fast',
  90                       default=False, help='faster but simpler drawing with GTK')
  91     parser.add_option('--profile', action='store_true', dest='profile',
  92                       default=False, help=optparse.SUPPRESS_HELP)
  93     options, args = parser.parse_args()
  94
  95     if options.max_depth < 2:
  96         parser.error('maximum depth must be at least 2')
  97
  98     args = map(os.path.realpath, args)
  99     continuation = lambda: UI[options.ui](options, args)
 100
 101     if options.profile:
 102         _profile(continuation)
 103     else:
 104         continuation()