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#!/usr/bin/python
# vim: set fileencoding=utf-8 :
#
# (C) 2013 Guido Günther <agx@sigxcpu.org>
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, please see
# <http://www.gnu.org/licenses/>
"""Supercommand for all gbp commands"""
from __future__ import print_function
import glob
import os
import re
import sys
# Command is this module and common/ is shared code
# so we don't allow these to be imported:
invalid_modules = ['common', 'supercommand']
def sanitize(cmd):
"""
'-' is not allowed in module names
so turn it into an underscore.
"""
return cmd.replace('-', '_')
def usage():
print("""
Usage:
gbp <command> [<args>]
The most commonly used commands are:
buildpackage - build a Debian package
import-orig - import a new upstream tarball
import-dsc - import a single Debian source package
import-dscs - import multiple Debian source packages
Use '--list-cmds' to list all available commands.
""")
def version(prog):
try:
from gbp.version import gbp_version
except ImportError:
gbp_version = '[Unknown version]'
print("%s %s" % (os.path.basename(prog), gbp_version))
def import_command(cmd):
"""
Import the module that implements the given command
"""
modulename = sanitize(cmd)
if (not re.match(r'[a-z][a-z0-9_]', modulename) or
modulename in invalid_modules):
raise ImportError('Illegal module name %s' % modulename)
return __import__('gbp.scripts.%s' % modulename, fromlist='main', level=0)
def pymod_to_cmd(mod):
"""
>>> pymod_to_cmd('/x/y/z/a_cmd.py')
'a-cmd'
"""
return os.path.basename(mod.rsplit('.', 1)[0]).replace('_', '-')
def get_available_commands(path):
cmds = []
for f in glob.glob(os.path.join(path, '*.py')):
if os.path.basename(f) in ['__init__.py', 'supercommand.py']:
continue
cmds.append((pymod_to_cmd(f), f))
return cmds
def list_available_commands():
mod = __import__('gbp.scripts', fromlist='main', level=0)
path = os.path.dirname(mod.__file__)
maxlen = 0
print("Available commands in %s\n" % path)
cmds = sorted(get_available_commands(path))
for cmd in cmds:
if len(cmd[0]) > maxlen:
maxlen = len(cmd[0])
for cmd in cmds:
mod = import_command(cmd[0])
doc = mod.__doc__
print(" %s - %s" % (cmd[0].rjust(maxlen), doc))
print('')
def supercommand(argv=None):
argv = argv or sys.argv
if len(argv) < 2:
usage()
return 1
prg, cmd = argv[0:2]
args = argv[1:]
if cmd in ['--help', '-h']:
usage()
return 0
elif cmd == 'help' and len(args) > 1:
# Make the first argument after help the new commadn and
# request it's help output
cmd = args[1]
args = [cmd, '--help']
elif cmd == 'help':
usage()
return 0
elif cmd in ['--version', 'version']:
version(argv[0])
return 0
elif cmd in ['--list-cmds', 'list-cmds']:
list_available_commands()
return 0
try:
module = import_command(cmd)
except ImportError as e:
print("'%s' is not a valid command." % cmd, file=sys.stderr)
usage()
if '--verbose' in args:
print(e, file=sys.stderr)
return 2
return module.main(args)
if __name__ == '__main__':
sys.exit(supercommand())
# vim:et:ts=4:sw=4:et:sts=4:ai:set list listchars=tab\:»·,trail\:·:
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