chiark - git - mdw - 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.clone
  37 import stgit.commands.export
  38 import stgit.commands.files
  39 import stgit.commands.fold
  40 import stgit.commands.id
  41 import stgit.commands.imprt
  42 import stgit.commands.init
  43 import stgit.commands.mail
  44 import stgit.commands.new
  45 import stgit.commands.pop
  46 import stgit.commands.pull
  47 import stgit.commands.push
  48 import stgit.commands.refresh
  49 import stgit.commands.rename
  50 import stgit.commands.resolved
  51 import stgit.commands.rm
  52 import stgit.commands.series
  53 import stgit.commands.status
  54 import stgit.commands.top
  55 import stgit.commands.unapplied
  56
  57
  58 #
  59 # The commands map
  60 #
  61 commands = {
  62     'add':      stgit.commands.add,
  63     'applied':  stgit.commands.applied,
  64     'delete':   stgit.commands.delete,
  65     'diff':     stgit.commands.diff,
  66     'clean':    stgit.commands.clean,
  67     'clone':    stgit.commands.clone,
  68     'export':   stgit.commands.export,
  69     'files':    stgit.commands.files,
  70     'fold':     stgit.commands.fold,
  71     'id':       stgit.commands.id,
  72     'import':   stgit.commands.imprt,
  73     'init':     stgit.commands.init,
  74     'mail':     stgit.commands.mail,
  75     'new':      stgit.commands.new,
  76     'pop':      stgit.commands.pop,
  77     'pull':     stgit.commands.pull,
  78     'push':     stgit.commands.push,
  79     'refresh':  stgit.commands.refresh,
  80     'rename':   stgit.commands.rename,
  81     'resolved': stgit.commands.resolved,
  82     'rm':       stgit.commands.rm,
  83     'series':   stgit.commands.series,
  84     'status':   stgit.commands.status,
  85     'top':      stgit.commands.top,
  86     'unapplied':stgit.commands.unapplied,
  87     }
  88
  89 def print_help():
  90     print 'usage: %s <command> [options]' % os.path.basename(sys.argv[0])
  91     print
  92     print 'commands:'
  93     print '  help        print this message'
  94
  95     cmds = commands.keys()
  96     cmds.sort()
  97     for cmd in cmds:
  98         print '  ' + cmd + ' ' * (12 - len(cmd)) + commands[cmd].help
  99
 100 #
 101 # The main function (command dispatcher)
 102 #
 103 def main():
 104     """The main function
 105     """
 106     prog = os.path.basename(sys.argv[0])
 107
 108     if len(sys.argv) < 2:
 109         print >> sys.stderr, 'Unknown command'
 110         print >> sys.stderr, \
 111               '  Try "%s help" for a list of supported commands' % prog
 112         sys.exit(1)
 113
 114     cmd = sys.argv[1]
 115
 116     if cmd in ['-h', '--help', 'help']:
 117         print_help()
 118         sys.exit(0)
 119     if cmd in ['-v', '--version']:
 120         print '%s %s' % (prog, version)
 121         sys.exit(0)
 122     if not cmd in commands:
 123         print >> sys.stderr, 'Unknown command: %s' % cmd
 124         print >> sys.stderr, '  Try "%s help" for a list of supported commands' \
 125               % prog
 126         sys.exit(1)
 127
 128     # re-build the command line arguments
 129     sys.argv[0] += ' %s' % cmd
 130     del(sys.argv[1])
 131
 132     command = commands[cmd]
 133     parser = OptionParser(usage = command.usage,
 134                           option_list = command.options)
 135     options, args = parser.parse_args()
 136     try:
 137         # 'clone' doesn't expect an already initialised GIT tree
 138         if cmd == 'clone':
 139             stgit.commands.common.crt_series = stack.Series('master')
 140         else:
 141             stgit.commands.common.crt_series = stack.Series()
 142         # the line below is a simple way to avoid an exception when
 143         # stgit is run outside an initialised tree
 144         setattr(command, 'crt_series', stgit.commands.common.crt_series)
 145
 146         command.func(parser, options, args)
 147     except (IOError, CmdException, stack.StackException, git.GitException), \
 148                err:
 149         print >> sys.stderr, '%s %s: %s' % (prog, cmd, err)
 150         sys.exit(2)
 151
 152     sys.exit(0)