Example #1
0
    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
Example #2
0
    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)
Example #3
0
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:")
Example #4
0
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:")
Example #5
0
def show_compilers():
    """Print list of available compilers (used by the "--help-compiler"
    options to "build", "build_ext", "build_clib").
    """
    # XXX this "knows" that the compiler option it's describing is
    # "--compiler", which just happens to be the case for the three
    # commands that use it.
    from distutils2.fancy_getopt import FancyGetopt
    compilers = []
    for compiler in compiler_class.keys():
        compilers.append(("compiler="+compiler, None,
                          compiler_class[compiler][2]))
    compilers.sort()
    pretty_printer = FancyGetopt(compilers)
    pretty_printer.print_help("List of available compilers:")
Example #6
0
    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)
Example #7
0
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:")
Example #8
0
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, basestring):
            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:")
Example #9
0
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:")
Example #10
0
    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
Example #11
0
class Dispatcher(object):
    """Reads the command-line options
    """
    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 _set_logger(self):
        # setting up the logging level from the command-line options
        # -q gets warning, error and critical
        if self.verbose == 0:
            level = logging.WARNING
        # default level or -v gets info too
        # XXX there's a bug somewhere: the help text says that -v is default
        # (and verbose is set to 1 above), but when the user explicitly gives
        # -v on the command line, self.verbose is incremented to 2!  Here we
        # compensate for that (I tested manually).  On a related note, I think
        # it's a good thing to use -q/nothing/-v/-vv on the command line
        # instead of logging constants; it will be easy to add support for
        # logging configuration in setup.cfg for advanced users. --merwok
        elif self.verbose in (1, 2):
            level = logging.INFO
        else:  # -vv and more for debug
            level = logging.DEBUG

        # setting up the stream handler
        handler = logging.StreamHandler(sys.stderr)
        handler.setLevel(level)
        logger.addHandler(handler)
        logger.setLevel(level)

    def _parse_command_opts(self, parser, args):
        # Pull the current command from the head of the command line
        command = args[0]
        if not command_re.match(command):
            self.show_help()  # TODO list only commands, not actions
            sys.exit('error: invalid command name %r' % command)
        self.commands.append(command)

        # Dig up the command class that implements this command, so we
        # 1) know that it's a valid command, and 2) know which options
        # it takes.
        try:
            cmd_class = get_command_class(command)
        except PackagingModuleError, msg:
            self.show_help()  # TODO list only commands, not actions
            sys.exit('error: command %r not recognized' % command)

        # XXX We want to push this in distutils2.command
        #
        # Require that the command class be derived from Command -- want
        # to be sure that the basic "command" interface is implemented.
        for meth in ('initialize_options', 'finalize_options', 'run'):
            if hasattr(cmd_class, meth):
                continue
            raise PackagingClassError(
                'command %r must implement %r' % (cmd_class, meth))

        # Also make sure that the command object provides a list of its
        # known options.
        if not (hasattr(cmd_class, 'user_options') and
                isinstance(cmd_class.user_options, list)):
            raise PackagingClassError(
                "command class %s must provide "
                "'user_options' attribute (a list of tuples)" % cmd_class)

        # If the command class has a list of negative alias options,
        # merge it in with the global negative aliases.
        _negative_opt = negative_opt.copy()

        if hasattr(cmd_class, 'negative_opt'):
            _negative_opt.update(cmd_class.negative_opt)

        # Check for help_options in command class.  They have a different
        # format (tuple of four) so we need to preprocess them here.
        if (hasattr(cmd_class, 'help_options') and
            isinstance(cmd_class.help_options, list)):
            help_options = cmd_class.help_options[:]
        else:
            help_options = []

        # All commands support the global options too, just by adding
        # in 'global_options'.
        parser.set_option_table(global_options +
                                cmd_class.user_options +
                                help_options)
        parser.set_negative_aliases(_negative_opt)
        try:
            args, opts = parser.getopt(args[1:])
        except PackagingArgError, msg:
            self.show_help()
            sys.exit('error: %s' % msg)
Example #12
0
class Dispatcher:
    """Reads the command-line options
    """
    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 _set_logger(self):
        # setting up the logging level from the command-line options
        # -q gets warning, error and critical
        if self.verbose == 0:
            level = logging.WARNING
        # default level or -v gets info too
        # XXX there's a bug somewhere: the help text says that -v is default
        # (and verbose is set to 1 above), but when the user explicitly gives
        # -v on the command line, self.verbose is incremented to 2!  Here we
        # compensate for that (I tested manually).  On a related note, I think
        # it's a good thing to use -q/nothing/-v/-vv on the command line
        # instead of logging constants; it will be easy to add support for
        # logging configuration in setup.cfg for advanced users. --merwok
        elif self.verbose in (1, 2):
            level = logging.INFO
        else:  # -vv and more for debug
            level = logging.DEBUG

        # setting up the stream handler
        handler = logging.StreamHandler(sys.stderr)
        handler.setLevel(level)
        logger.addHandler(handler)
        logger.setLevel(level)

    def _parse_command_opts(self, parser, args):
        # Pull the current command from the head of the command line
        command = args[0]
        if not command_re.match(command):
            self.show_help()  # TODO list only commands, not actions
            sys.exit('error: invalid command name %r' % command)
        self.commands.append(command)

        # Dig up the command class that implements this command, so we
        # 1) know that it's a valid command, and 2) know which options
        # it takes.
        try:
            cmd_class = get_command_class(command)
        except PackagingModuleError as msg:
            self.show_help()  # TODO list only commands, not actions
            sys.exit('error: command %r not recognized' % command)

        # XXX We want to push this in distutils2.command
        #
        # Require that the command class be derived from Command -- want
        # to be sure that the basic "command" interface is implemented.
        for meth in ('initialize_options', 'finalize_options', 'run'):
            if hasattr(cmd_class, meth):
                continue
            raise PackagingClassError('command %r must implement %r' %
                                      (cmd_class, meth))

        # Also make sure that the command object provides a list of its
        # known options.
        if not (hasattr(cmd_class, 'user_options')
                and isinstance(cmd_class.user_options, list)):
            raise PackagingClassError(
                "command class %s must provide "
                "'user_options' attribute (a list of tuples)" % cmd_class)

        # If the command class has a list of negative alias options,
        # merge it in with the global negative aliases.
        _negative_opt = negative_opt.copy()

        if hasattr(cmd_class, 'negative_opt'):
            _negative_opt.update(cmd_class.negative_opt)

        # Check for help_options in command class.  They have a different
        # format (tuple of four) so we need to preprocess them here.
        if (hasattr(cmd_class, 'help_options')
                and isinstance(cmd_class.help_options, list)):
            help_options = cmd_class.help_options[:]
        else:
            help_options = []

        # All commands support the global options too, just by adding
        # in 'global_options'.
        parser.set_option_table(global_options + cmd_class.user_options +
                                help_options)
        parser.set_negative_aliases(_negative_opt)
        try:
            args, opts = parser.getopt(args[1:])
        except PackagingArgError as msg:
            self.show_help()
            sys.exit('error: %s' % msg)

        if hasattr(opts, 'help') and opts.help:
            self._show_command_help(cmd_class)
            return

        if (hasattr(cmd_class, 'help_options')
                and isinstance(cmd_class.help_options, list)):
            help_option_found = False
            for help_option, short, desc, func in cmd_class.help_options:
                if hasattr(opts, help_option.replace('-', '_')):
                    help_option_found = True
                    if callable(func):
                        func()
                    else:
                        raise PackagingClassError(
                            "invalid help function %r for help option %r: "
                            "must be a callable object (function, etc.)" %
                            (func, help_option))

            if help_option_found:
                return

        # Put the options from the command line into their official
        # holding pen, the 'command_options' dictionary.
        opt_dict = self.get_option_dict(command)
        for name, value in vars(opts).items():
            opt_dict[name] = ("command line", value)

        return args

    def get_option_dict(self, command):
        """Get the option dictionary for a given command.  If that
        command's option dictionary hasn't been created yet, then create it
        and return the new dictionary; otherwise, return the existing
        option dictionary.
        """
        d = self.command_options.get(command)
        if d is None:
            d = self.command_options[command] = {}
        return d

    def show_help(self):
        self._show_help(self.parser)

    def print_usage(self, parser):
        parser.set_option_table(global_options)

        actions_ = ['    %s: %s' % (name, desc) for name, desc, __ in actions]
        usage = common_usage % {'actions': '\n'.join(actions_)}

        parser.print_help(usage + "\nGlobal options:")

    def _show_help(self,
                   parser,
                   global_options_=True,
                   display_options_=True,
                   commands=[]):
        # XXX want to print to stdout when help is requested (--help) but to
        # stderr in case of error!
        print('Usage: pysetup [options] action [action_options]')
        print()
        if global_options_:
            self.print_usage(self.parser)
            print()

        if display_options_:
            parser.set_option_table(display_options)
            parser.print_help("Information display options (just display " +
                              "information, ignore any commands)")
            print()

        for command in commands:
            if isinstance(command, type) and issubclass(command, Command):
                cls = command
            else:
                cls = get_command_class(command)
            if (hasattr(cls, 'help_options')
                    and isinstance(cls.help_options, list)):
                parser.set_option_table(cls.user_options + cls.help_options)
            else:
                parser.set_option_table(cls.user_options)

            parser.print_help("Options for %r command:" % cls.__name__)
            print()

    def _show_command_help(self, command):
        if isinstance(command, str):
            command = get_command_class(command)

        desc = getattr(command, 'description', '(no description available)')
        print('Description:', desc)
        print()

        if (hasattr(command, 'help_options')
                and isinstance(command.help_options, list)):
            self.parser.set_option_table(command.user_options +
                                         command.help_options)
        else:
            self.parser.set_option_table(command.user_options)

        self.parser.print_help("Options:")
        print()

    def _get_command_groups(self):
        """Helper function to retrieve all the command class names divided
        into standard commands (listed in
        distutils2.command.STANDARD_COMMANDS) and extra commands (given in
        self.cmdclass and not standard commands).
        """
        extra_commands = [
            cmd for cmd in self.cmdclass if cmd not in STANDARD_COMMANDS
        ]
        return STANDARD_COMMANDS, extra_commands

    def print_commands(self):
        """Print out a help message listing all available commands with a
        description of each.  The list is divided into standard commands
        (listed in distutils2.command.STANDARD_COMMANDS) and extra commands
        (given in self.cmdclass and not standard commands).  The
        descriptions come from the command class attribute
        'description'.
        """
        std_commands, extra_commands = self._get_command_groups()
        max_length = max(
            len(command) for commands in (std_commands, extra_commands)
            for command in commands)

        self.print_command_list(std_commands, "Standard commands", max_length)
        if extra_commands:
            print()
            self.print_command_list(extra_commands, "Extra commands",
                                    max_length)

    def print_command_list(self, commands, header, max_length):
        """Print a subset of the list of all commands -- used by
        'print_commands()'.
        """
        print(header + ":")

        for cmd in commands:
            cls = self.cmdclass.get(cmd) or get_command_class(cmd)
            description = getattr(cls, 'description',
                                  '(no description available)')

            print("  %-*s  %s" % (max_length, cmd, description))

    def __call__(self):
        if self.action is None:
            return

        for action, desc, func in actions:
            if action == self.action:
                return func(self, self.args)
        return -1