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.pull
  43 import stgit.commands.push
  44 import stgit.commands.refresh
  45 import stgit.commands.resolved
  46 import stgit.commands.rm
  47 import stgit.commands.series
  48 import stgit.commands.status
  49 import stgit.commands.top
  50 import stgit.commands.unapplied
  51
  52
  53 #
  54 # The commands map
  55 #
  56 commands = {
  57     'add':      stgit.commands.add,
  58     'applied':  stgit.commands.applied,
  59     'delete':   stgit.commands.delete,
  60     'diff':     stgit.commands.diff,
  61     'clean':    stgit.commands.clean,
  62     'export':   stgit.commands.export,
  63     'files':    stgit.commands.files,
  64     'init':     stgit.commands.init,
  65     'mail':     stgit.commands.mail,
  66     'new':      stgit.commands.new,
  67     'pop':      stgit.commands.pop,
  68     'pull':     stgit.commands.pull,
  69     'push':     stgit.commands.push,
  70     'refresh':  stgit.commands.refresh,
  71     'resolved': stgit.commands.resolved,
  72     'rm':       stgit.commands.rm,
  73     'series':   stgit.commands.series,
  74     'status':   stgit.commands.status,
  75     'top':      stgit.commands.top,
  76     'unapplied':stgit.commands.unapplied,
  77     }
  78
  79 def print_help():
  80     print 'usage: %s <command> [options]' % os.path.basename(sys.argv[0])
  81     print
  82     print 'commands:'
  83     print '  help        print this message'
  84
  85     cmds = commands.keys()
  86     cmds.sort()
  87     for cmd in cmds:
  88         print '  ' + cmd + ' ' * (12 - len(cmd)) + commands[cmd].help
  89
  90 #
  91 # The main function (command dispatcher)
  92 #
  93 def main():
  94     """The main function
  95     """
  96     prog = os.path.basename(sys.argv[0])
  97
  98     if len(sys.argv) < 2:
  99         print >> sys.stderr, 'Unknown command'
 100         print >> sys.stderr, \
 101               '  Try "%s help" for a list of supported commands' % prog
 102         sys.exit(1)
 103
 104     cmd = sys.argv[1]
 105
 106     if cmd in ['-h', '--help', 'help']:
 107         print_help()
 108         sys.exit(0)
 109     if cmd in ['-v', '--version']:
 110         print '%s %s' % (prog, version)
 111         sys.exit(0)
 112     if not cmd in commands:
 113         print >> sys.stderr, 'Unknown command: %s' % cmd
 114         print >> sys.stderr, '  Try "%s help" for a list of supported commands' \
 115               % prog
 116         sys.exit(1)
 117
 118     # re-build the command line arguments
 119     sys.argv[0] += ' %s' % cmd
 120     del(sys.argv[1])
 121
 122     command = commands[cmd]
 123     parser = OptionParser(usage = command.usage,
 124                           option_list = command.options)
 125     options, args = parser.parse_args()
 126     try:
 127         # the lines below are a simple way to avoid an exception when
 128         # stgit is run outside an initialised tree
 129         stgit.commands.common.crt_series = stack.Series()
 130         setattr(command, 'crt_series', stgit.commands.common.crt_series)
 131
 132         command.func(parser, options, args)
 133     except (IOError, CmdException, stack.StackException, git.GitException), \
 134                err:
 135         print >> sys.stderr, '%s %s: %s' % (prog, cmd, err)
 136         sys.exit(2)
 137
 138     sys.exit(0)