| 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, traceback |
| 22 | |
| 23 | import stgit.commands |
| 24 | from stgit.out import * |
| 25 | from stgit import argparse, run, utils |
| 26 | |
| 27 | # |
| 28 | # The commands map |
| 29 | # |
| 30 | class Commands(dict): |
| 31 | """Commands class. It performs on-demand module loading |
| 32 | """ |
| 33 | def canonical_cmd(self, key): |
| 34 | """Return the canonical name for a possibly-shortenned |
| 35 | command name. |
| 36 | """ |
| 37 | candidates = [cmd for cmd in self.keys() if cmd.startswith(key)] |
| 38 | |
| 39 | if not candidates: |
| 40 | out.error('Unknown command: %s' % key, |
| 41 | 'Try "%s help" for a list of supported commands' % prog) |
| 42 | sys.exit(utils.STGIT_GENERAL_ERROR) |
| 43 | elif len(candidates) > 1: |
| 44 | out.error('Ambiguous command: %s' % key, |
| 45 | 'Candidates are: %s' % ', '.join(candidates)) |
| 46 | sys.exit(utils.STGIT_GENERAL_ERROR) |
| 47 | |
| 48 | return candidates[0] |
| 49 | |
| 50 | def __getitem__(self, key): |
| 51 | cmd_mod = self.get(key) or self.get(self.canonical_cmd(key)) |
| 52 | return stgit.commands.get_command(cmd_mod) |
| 53 | |
| 54 | cmd_list = stgit.commands.get_commands() |
| 55 | commands = Commands((cmd, mod) for cmd, (mod, kind, help) |
| 56 | in cmd_list.iteritems()) |
| 57 | |
| 58 | def print_help(): |
| 59 | print 'usage: %s <command> [options]' % os.path.basename(sys.argv[0]) |
| 60 | print |
| 61 | print 'Generic commands:' |
| 62 | print ' help print the detailed command usage' |
| 63 | print ' version display version information' |
| 64 | print ' copyright display copyright information' |
| 65 | print |
| 66 | stgit.commands.pretty_command_list(cmd_list, sys.stdout) |
| 67 | |
| 68 | # |
| 69 | # The main function (command dispatcher) |
| 70 | # |
| 71 | def _main(): |
| 72 | """The main function |
| 73 | """ |
| 74 | global prog |
| 75 | |
| 76 | prog = os.path.basename(sys.argv[0]) |
| 77 | |
| 78 | if len(sys.argv) < 2: |
| 79 | print >> sys.stderr, 'usage: %s <command>' % prog |
| 80 | print >> sys.stderr, \ |
| 81 | ' Try "%s --help" for a list of supported commands' % prog |
| 82 | sys.exit(utils.STGIT_GENERAL_ERROR) |
| 83 | |
| 84 | cmd = sys.argv[1] |
| 85 | |
| 86 | if cmd in ['-h', '--help']: |
| 87 | if len(sys.argv) >= 3: |
| 88 | cmd = commands.canonical_cmd(sys.argv[2]) |
| 89 | sys.argv[2] = '--help' |
| 90 | else: |
| 91 | print_help() |
| 92 | sys.exit(utils.STGIT_SUCCESS) |
| 93 | if cmd == 'help': |
| 94 | if len(sys.argv) == 3 and not sys.argv[2] in ['-h', '--help']: |
| 95 | cmd = commands.canonical_cmd(sys.argv[2]) |
| 96 | if not cmd in commands: |
| 97 | out.error('%s help: "%s" command unknown' % (prog, cmd)) |
| 98 | sys.exit(utils.STGIT_GENERAL_ERROR) |
| 99 | |
| 100 | sys.argv[0] += ' %s' % cmd |
| 101 | command = commands[cmd] |
| 102 | parser = argparse.make_option_parser(command) |
| 103 | from pydoc import pager |
| 104 | pager(parser.format_help()) |
| 105 | else: |
| 106 | print_help() |
| 107 | sys.exit(utils.STGIT_SUCCESS) |
| 108 | if cmd in ['-v', '--version', 'version']: |
| 109 | from stgit.version import version |
| 110 | print 'Stacked GIT %s' % version |
| 111 | os.system('git --version') |
| 112 | print 'Python version %s' % sys.version |
| 113 | sys.exit(utils.STGIT_SUCCESS) |
| 114 | if cmd in ['copyright']: |
| 115 | print __copyright__ |
| 116 | sys.exit(utils.STGIT_SUCCESS) |
| 117 | |
| 118 | # re-build the command line arguments |
| 119 | cmd = commands.canonical_cmd(cmd) |
| 120 | sys.argv[0] += ' %s' % cmd |
| 121 | del(sys.argv[1]) |
| 122 | |
| 123 | command = commands[cmd] |
| 124 | parser = argparse.make_option_parser(command) |
| 125 | options, args = parser.parse_args() |
| 126 | directory = command.directory |
| 127 | |
| 128 | # These modules are only used from this point onwards and do not |
| 129 | # need to be imported earlier |
| 130 | from stgit.exception import StgException |
| 131 | from stgit.config import config_setup |
| 132 | from ConfigParser import ParsingError, NoSectionError |
| 133 | from stgit.stack import Series |
| 134 | |
| 135 | try: |
| 136 | debug_level = int(os.environ.get('STGIT_DEBUG_LEVEL', 0)) |
| 137 | except ValueError: |
| 138 | out.error('Invalid STGIT_DEBUG_LEVEL environment variable') |
| 139 | sys.exit(utils.STGIT_GENERAL_ERROR) |
| 140 | |
| 141 | try: |
| 142 | directory.setup() |
| 143 | config_setup() |
| 144 | |
| 145 | # Some commands don't (always) need an initialized series. |
| 146 | if directory.needs_current_series: |
| 147 | if hasattr(options, 'branch') and options.branch: |
| 148 | command.crt_series = Series(options.branch) |
| 149 | else: |
| 150 | command.crt_series = Series() |
| 151 | |
| 152 | ret = command.func(parser, options, args) |
| 153 | except (StgException, IOError, ParsingError, NoSectionError), err: |
| 154 | directory.write_log(cmd) |
| 155 | out.error(str(err), title = '%s %s' % (prog, cmd)) |
| 156 | if debug_level > 0: |
| 157 | traceback.print_exc() |
| 158 | sys.exit(utils.STGIT_COMMAND_ERROR) |
| 159 | except SystemExit: |
| 160 | # Triggered by the option parser when it finds bad commandline |
| 161 | # parameters. |
| 162 | sys.exit(utils.STGIT_COMMAND_ERROR) |
| 163 | except KeyboardInterrupt: |
| 164 | sys.exit(utils.STGIT_GENERAL_ERROR) |
| 165 | except: |
| 166 | out.error('Unhandled exception:') |
| 167 | traceback.print_exc() |
| 168 | sys.exit(utils.STGIT_BUG_ERROR) |
| 169 | |
| 170 | directory.write_log(cmd) |
| 171 | sys.exit(ret or utils.STGIT_SUCCESS) |
| 172 | |
| 173 | def main(): |
| 174 | try: |
| 175 | _main() |
| 176 | finally: |
| 177 | run.finish_logging() |