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.commit
  38 import stgit.commands.export
  39 import stgit.commands.files
  40 import stgit.commands.fold
  41 import stgit.commands.id
  42 import stgit.commands.imprt
  43 import stgit.commands.init
  44 import stgit.commands.mail
  45 import stgit.commands.new
  46 import stgit.commands.pick
  47 import stgit.commands.pop
  48 import stgit.commands.pull
  49 import stgit.commands.push
  50 import stgit.commands.refresh
  51 import stgit.commands.rename
  52 import stgit.commands.resolved
  53 import stgit.commands.rm
  54 import stgit.commands.series
  55 import stgit.commands.status
  56 import stgit.commands.top
  57 import stgit.commands.unapplied
  58
  59
  60 #
  61 # The commands map
  62 #
  63 commands = {
  64     'add':      stgit.commands.add,
  65     'applied':  stgit.commands.applied,
  66     'delete':   stgit.commands.delete,
  67     'diff':     stgit.commands.diff,
  68     'clean':    stgit.commands.clean,
  69     'clone':    stgit.commands.clone,
  70     'commit':   stgit.commands.commit,
  71     'export':   stgit.commands.export,
  72     'files':    stgit.commands.files,
  73     'fold':     stgit.commands.fold,
  74     'id':       stgit.commands.id,
  75     'import':   stgit.commands.imprt,
  76     'init':     stgit.commands.init,
  77     'mail':     stgit.commands.mail,
  78     'new':      stgit.commands.new,
  79     'pick':     stgit.commands.pick,
  80     'pop':      stgit.commands.pop,
  81     'pull':     stgit.commands.pull,
  82     'push':     stgit.commands.push,
  83     'refresh':  stgit.commands.refresh,
  84     'rename':   stgit.commands.rename,
  85     'resolved': stgit.commands.resolved,
  86     'rm':       stgit.commands.rm,
  87     'series':   stgit.commands.series,
  88     'status':   stgit.commands.status,
  89     'top':      stgit.commands.top,
  90     'unapplied':stgit.commands.unapplied,
  91     }
  92
  93 def print_help():
  94     print 'usage: %s <command> [options]' % os.path.basename(sys.argv[0])
  95     print
  96     print 'commands:'
  97     print '  help        print this message'
  98     print '  version     display version information'
  99     print '  copyright   display copyright information'
 100     print
 101
 102     cmds = commands.keys()
 103     cmds.sort()
 104     for cmd in cmds:
 105         print '  ' + cmd + ' ' * (12 - len(cmd)) + commands[cmd].help
 106
 107 #
 108 # The main function (command dispatcher)
 109 #
 110 def main():
 111     """The main function
 112     """
 113     prog = os.path.basename(sys.argv[0])
 114
 115     if len(sys.argv) < 2:
 116         print >> sys.stderr, 'Unknown command'
 117         print >> sys.stderr, \
 118               '  Try "%s help" for a list of supported commands' % prog
 119         sys.exit(1)
 120
 121     cmd = sys.argv[1]
 122
 123     if cmd in ['-h', '--help', 'help']:
 124         print_help()
 125         sys.exit(0)
 126     if cmd in ['-v', '--version', 'version']:
 127         print 'Stacked GIT %s' % version
 128         print 'Python version %s' % sys.version
 129         sys.exit(0)
 130     if cmd in ['copyright']:
 131         print __copyright__
 132         sys.exit(0)
 133     if not cmd in commands:
 134         print >> sys.stderr, 'Unknown command: %s' % cmd
 135         print >> sys.stderr, '  Try "%s help" for a list of supported ' \
 136               'commands' % prog
 137         sys.exit(1)
 138
 139     # re-build the command line arguments
 140     sys.argv[0] += ' %s' % cmd
 141     del(sys.argv[1])
 142
 143     command = commands[cmd]
 144     parser = OptionParser(usage = command.usage,
 145                           option_list = command.options)
 146     options, args = parser.parse_args()
 147     try:
 148         # 'clone' doesn't expect an already initialised GIT tree
 149         if cmd == 'clone':
 150             stgit.commands.common.crt_series = stack.Series('master')
 151         elif hasattr(options, 'branch') and options.branch:
 152             stgit.commands.common.crt_series = stack.Series(options.branch)
 153         else:
 154             stgit.commands.common.crt_series = stack.Series()
 155         # the line below is a simple way to avoid an exception when
 156         # stgit is run outside an initialised tree
 157         setattr(command, 'crt_series', stgit.commands.common.crt_series)
 158
 159         command.func(parser, options, args)
 160     except (IOError, CmdException, stack.StackException, git.GitException), \
 161                err:
 162         print >> sys.stderr, '%s %s: %s' % (prog, cmd, err)
 163         sys.exit(2)
 164
 165     sys.exit(0)