mdw@git.distorted.org.uk Git - stgit/blob - stgit/main.py

   1 """Basic quilt-like functionality
   2 """
   3
   4 __copyright__ = """
   5 Copyright (C) 2005, Catalin Marinas <catalin.marinas@gmail.com>
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License version 2 as
   9 published by the Free Software Foundation.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19 """
  20
  21 import sys, os
  22 from optparse import OptionParser, make_option
  23
  24 from stgit.utils import *
  25 from stgit import stack, git
  26 from stgit.version import version
  27 from stgit.config import config
  28 from stgit.commands.common import *
  29
  30 # The commands
  31 import stgit.commands.add
  32 import stgit.commands.applied
  33 import stgit.commands.delete
  34 import stgit.commands.diff
  35 import stgit.commands.clean
  36 import stgit.commands.export
  37 import stgit.commands.files
  38 import stgit.commands.init
  39 import stgit.commands.mail
  40 import stgit.commands.new
  41 import stgit.commands.pop
  42 import stgit.commands.push
  43 import stgit.commands.refresh
  44 import stgit.commands.resolved
  45 import stgit.commands.rm
  46 import stgit.commands.series
  47 import stgit.commands.status
  48 import stgit.commands.top
  49 import stgit.commands.unapplied
  50
  51
  52 #
  53 # The commands map
  54 #
  55 commands = {
  56     'add':      stgit.commands.add,
  57     'applied':  stgit.commands.applied,
  58     'delete':   stgit.commands.delete,
  59     'diff':     stgit.commands.diff,
  60     'clean':    stgit.commands.clean,
  61     'export':   stgit.commands.export,
  62     'files':    stgit.commands.files,
  63     'init':     stgit.commands.init,
  64     'mail':     stgit.commands.mail,
  65     'new':      stgit.commands.new,
  66     'pop':      stgit.commands.pop,
  67     'push':     stgit.commands.push,
  68     'refresh':  stgit.commands.refresh,
  69     'resolved': stgit.commands.resolved,
  70     'rm':       stgit.commands.rm,
  71     'series':   stgit.commands.series,
  72     'status':   stgit.commands.status,
  73     'top':      stgit.commands.top,
  74     'unapplied':stgit.commands.unapplied,
  75     }
  76
  77 def print_help():
  78     print 'usage: %s <command> [options]' % os.path.basename(sys.argv[0])
  79     print
  80     print 'commands:'
  81     print '  help        print this message'
  82
  83     cmds = commands.keys()
  84     cmds.sort()
  85     for cmd in cmds:
  86         print '  ' + cmd + ' ' * (12 - len(cmd)) + commands[cmd].help
  87
  88 #
  89 # The main function (command dispatcher)
  90 #
  91 def main():
  92     """The main function
  93     """
  94     prog = os.path.basename(sys.argv[0])
  95
  96     if len(sys.argv) < 2:
  97         print >> sys.stderr, 'Unknown command'
  98         print >> sys.stderr, \
  99               '  Try "%s help" for a list of supported commands' % prog
 100         sys.exit(1)
 101
 102     cmd = sys.argv[1]
 103
 104     if cmd in ['-h', '--help', 'help']:
 105         print_help()
 106         sys.exit(0)
 107     if cmd in ['-v', '--version']:
 108         print '%s %s' % (prog, version)
 109         sys.exit(0)
 110     if not cmd in commands:
 111         print >> sys.stderr, 'Unknown command: %s' % cmd
 112         print >> sys.stderr, '  Try "%s help" for a list of supported commands' \
 113               % prog
 114         sys.exit(1)
 115
 116     # re-build the command line arguments
 117     sys.argv[0] += ' %s' % cmd
 118     del(sys.argv[1])
 119
 120     command = commands[cmd]
 121     parser = OptionParser(usage = command.usage,
 122                           option_list = command.options)
 123     options, args = parser.parse_args()
 124     try:
 125         # the lines below are a simple way to avoid an exception when
 126         # stgit is run outside an initialised tree
 127         stgit.commands.common.crt_series = stack.Series()
 128         setattr(command, 'crt_series', stgit.commands.common.crt_series)
 129
 130         command.func(parser, options, args)
 131     except (IOError, CmdException, stack.StackException, git.GitException), \
 132                err:
 133         print >> sys.stderr, '%s %s: %s' % (prog, cmd, err)
 134         sys.exit(2)
 135
 136     sys.exit(0)