def parse_command_line(self):
"""Parse the setup script's command line, taken from the
'script_args' instance attribute (which defaults to 'sys.argv[1:]'
-- see 'setup()' in run.py). This list is first processed for
"global options" -- options that set attributes of the Distribution
instance. Then, it is alternately scanned for Packaging commands
and options for that command. Each new command terminates the
options for the previous command. The allowed options for a
command are determined by the 'user_options' attribute of the
command class -- thus, we have to be able to load command classes
in order to parse the command line. Any error in that 'options'
attribute raises PackagingGetoptError; any error on the
command line raises PackagingArgError. If no Packaging commands
were found on the command line, raises PackagingArgError. Return
true if command line was successfully parsed and we should carry
on with executing commands; false if no errors but we shouldn't
execute commands (currently, this only happens if user asks for
help).
"""
#
# We now have enough information to show the Macintosh dialog
# that allows the user to interactively specify the "command line".
#
toplevel_options = self._get_toplevel_options()
# We have to parse the command line a bit at a time -- global
# options, then the first command, then its options, and so on --
# because each command will be handled by a different class, and
# the options that are valid for a particular class aren't known
# until we have loaded the command class, which doesn't happen
# until we know what the command is.
self.commands = []
parser = FancyGetopt(toplevel_options + self.display_options)
parser.set_negative_aliases(self.negative_opt)
args = parser.getopt(args=self.script_args, object=self)
option_order = parser.get_option_order()
# for display options we return immediately
if self.handle_display_options(option_order):
return
while args:
args = self._parse_command_opts(parser, args)
if args is None: # user asked for help (and got it)
return
# Handle the cases of --help as a "global" option, ie.
# "pysetup run --help" and "pysetup run --help command ...". For the
# former, we show global options (--dry-run, etc.)
# and display-only options (--name, --version, etc.); for the
# latter, we omit the display-only options and show help for
# each command listed on the command line.
if self.help:
self._show_help(parser,
display_options=len(self.commands) == 0,
commands=self.commands)
return
return True
def __init__(self, args=None):
self.verbose = 1
self.dry_run = False
self.help = False
self.cmdclass = {}
self.commands = []
self.command_options = {}
for attr in display_option_names:
setattr(self, attr, False)
self.parser = FancyGetopt(global_options + display_options)
self.parser.set_negative_aliases(negative_opt)
# FIXME this parses everything, including command options (e.g. "run
# build -i" errors with "option -i not recognized")
# FIXME unknown options are not detected
args = self.parser.getopt(args=args, object=self)
# if first arg is "run", we have some commands
if len(args) == 0:
self.action = None
else:
self.action = args[0]
allowed = [action[0] for action in actions] + [None]
if self.action not in allowed:
self.show_help()
sys.exit('error: action %r not recognized' % self.action)
self._set_logger()
self.args = args
# for display options we return immediately
if self.help or self.action is None:
self._show_help(self.parser, display_options_=False)
def show_formats():
"""Print all possible values for the 'formats' option (used by
the "--help-formats" command-line option).
"""
from distutils2.fancy_getopt import FancyGetopt
formats = sorted(('formats=' + name, None, desc)
for name, desc in get_archive_formats())
FancyGetopt(formats).print_help(
"List of available source distribution formats:")
def show_formats():
"""Print list of available formats (arguments to "--format" option).
"""
from distutils2.fancy_getopt import FancyGetopt
formats = []
for format in bdist.format_commands:
formats.append(("formats=" + format, None,
bdist.format_command[format][1]))
pretty_printer = FancyGetopt(formats)
pretty_printer.print_help("List of available distribution formats:")
def show_compilers():
"""Print list of available compilers (used by the "--help-compiler"
options to "build", "build_ext", "build_clib").
"""
from distutils2.fancy_getopt import FancyGetopt
compilers = []
for name, cls in _COMPILERS.items():
if isinstance(cls, str):
cls = resolve_name(cls)
_COMPILERS[name] = cls
compilers.append(("compiler=" + name, None, cls.description))
compilers.sort()
pretty_printer = FancyGetopt(compilers)
pretty_printer.print_help("List of available compilers:")
