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