def execute(self):
"""
Given the command-line arguments, this figures out which subcommand is
being run, creates a parser appropriate to that command, and runs it.
"""
# Preprocess options to extract --settings and --pythonpath.
# These options could affect the commands that are available, so they
# must be processed early.
parser = LaxOptionParser(usage="%prog subcommand [options] [args]",
version=get_version(),
option_list=BaseCommand.option_list)
self.autocomplete()
try:
options, args = parser.parse_args(self.argv)
handle_default_options(options)
except:
pass # Ignore any option errors at this point.
try:
subcommand = self.argv[1]
except IndexError:
subcommand = 'help' # Display help if no arguments were given.
if subcommand == 'help':
if len(args) <= 2:
parser.print_lax_help()
sys.stdout.write(self.main_help_text() + '\n')
elif args[2] == '--commands':
sys.stdout.write(self.main_help_text(commands_only=True) + '\n')
else:
self.fetch_command(args[2]).print_help(self.prog_name, args[2])
elif subcommand == 'version':
sys.stdout.write(parser.get_version() + '\n')
# Special-cases: We want 'django-admin.py --version' and
# 'django-admin.py --help' to work, for backwards compatibility.
elif self.argv[1:] == ['--version']:
# LaxOptionParser already takes care of printing the version.
pass
elif self.argv[1:] in (['--help'], ['-h']):
parser.print_lax_help()
sys.stdout.write(self.main_help_text() + '\n')
else:
self.fetch_command(subcommand).run_from_argv(self.argv)
评论列表
文章目录
