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Python Compiled Bytecode | 2009-11-11 | 17KB | 380 lines

# Source Generated with Decompyle++
# File: in.pyc (Python 2.6)

'''distutils.cmd

Provides the Command class, the base class for the command classes
in the distutils.command package.
'''
__revision__ = '$Id: cmd.py 37828 2004-11-10 22:23:15Z loewis $'
import sys
import os
import string
import re
from types import *
from distutils.errors import *
from distutils import util, dir_util, file_util, archive_util, dep_util
from distutils import log

class Command:
    '''Abstract base class for defining command classes, the "worker bees"
    of the Distutils.  A useful analogy for command classes is to think of
    them as subroutines with local variables called "options".  The options
    are "declared" in \'initialize_options()\' and "defined" (given their
    final values, aka "finalized") in \'finalize_options()\', both of which
    must be defined by every command class.  The distinction between the
    two is necessary because option values might come from the outside
    world (command line, config file, ...), and any options dependent on
    other options must be computed *after* these outside influences have
    been processed -- hence \'finalize_options()\'.  The "body" of the
    subroutine, where it does all its work based on the values of its
    options, is the \'run()\' method, which must also be implemented by every
    command class.
    '''
    sub_commands = []

    def __init__(self, dist):
        """Create and initialize a new Command object.  Most importantly,
        invokes the 'initialize_options()' method, which is the real
        initializer and depends on the actual command being
        instantiated.
        """
        Distribution = Distribution
        import distutils.dist
        if not isinstance(dist, Distribution):
            raise TypeError, 'dist must be a Distribution instance'
        isinstance(dist, Distribution)
        if self.__class__ is Command:
            raise RuntimeError, 'Command is an abstract class'
        self.__class__ is Command
        self.distribution = dist
        self.initialize_options()
        self._dry_run = None
        self.verbose = dist.verbose
        self.force = None
        self.help = 0
        self.finalized = 0


    def __getattr__(self, attr):
        if attr == 'dry_run':
            myval = getattr(self, '_' + attr)
            if myval is None:
                return getattr(self.distribution, attr)
            return myval
        attr == 'dry_run'
        raise AttributeError, attr


    def ensure_finalized(self):
        if not self.finalized:
            self.finalize_options()

        self.finalized = 1


    def initialize_options(self):
        '''Set default values for all the options that this command
        supports.  Note that these defaults may be overridden by other
        commands, by the setup script, by config files, or by the
        command-line.  Thus, this is not the place to code dependencies
        between options; generally, \'initialize_options()\' implementations
        are just a bunch of "self.foo = None" assignments.

        This method must be implemented by all command classes.
        '''
        raise RuntimeError, 'abstract method -- subclass %s must override' % self.__class__


    def finalize_options(self):
        """Set final values for all the options that this command supports.
        This is always called as late as possible, ie.  after any option
        assignments from the command-line or from other commands have been
        done.  Thus, this is the place to code option dependencies: if
        'foo' depends on 'bar', then it is safe to set 'foo' from 'bar' as
        long as 'foo' still has the same value it was assigned in
        'initialize_options()'.

        This method must be implemented by all command classes.
        """
        raise RuntimeError, 'abstract method -- subclass %s must override' % self.__class__


    def dump_options(self, header = None, indent = ''):
        longopt_xlate = longopt_xlate
        import distutils.fancy_getopt
        if header is None:
            header = "command options for '%s':" % self.get_command_name()

        print indent + header
        indent = indent + '  '
        for option, _, _ in self.user_options:
            option = string.translate(option, longopt_xlate)
            if option[-1] == '=':
                option = option[:-1]

            value = getattr(self, option)
            print indent + '%s = %s' % (option, value)



    def run(self):
        """A command's raison d'etre: carry out the action it exists to
        perform, controlled by the options initialized in
        'initialize_options()', customized by other commands, the setup
        script, the command-line, and config files, and finalized in
        'finalize_options()'.  All terminal output and filesystem
        interaction should be done by 'run()'.

        This method must be implemented by all command classes.
        """
        raise RuntimeError, 'abstract method -- subclass %s must override' % self.__class__


    def announce(self, msg, level = 1):
        """If the current verbosity level is of greater than or equal to
        'level' print 'msg' to stdout.
        """
        log.log(level, msg)


    def debug_print(self, msg):
        """Print 'msg' to stdout if the global DEBUG (taken from the
        DISTUTILS_DEBUG environment variable) flag is true.
        """
        DEBUG = DEBUG
        import distutils.debug
        if DEBUG:
            print msg
            sys.stdout.flush()



    def _ensure_stringlike(self, option, what, default = None):
        val = getattr(self, option)
        if val is None:
            setattr(self, option, default)
            return default
        if type(val) is not StringType:
            raise DistutilsOptionError, "'%s' must be a %s (got `%s`)" % (option, what, val)
        type(val) is not StringType
        return val


    def ensure_string(self, option, default = None):
        """Ensure that 'option' is a string; if not defined, set it to
        'default'.
        """
        self._ensure_stringlike(option, 'string', default)


    def ensure_string_list(self, option):
        '''Ensure that \'option\' is a list of strings.  If \'option\' is
        currently a string, we split it either on /,\\s*/ or /\\s+/, so
        "foo bar baz", "foo,bar,baz", and "foo,   bar baz" all become
        ["foo", "bar", "baz"].
        '''
        val = getattr(self, option)
        if val is None:
            return None
        if type(val) is StringType:
            setattr(self, option, re.split(',\\s*|\\s+', val))
        elif type(val) is ListType:
            types = map(type, val)
            ok = types == [
                StringType] * len(val)
        else:
            ok = 0
        if not ok:
            raise DistutilsOptionError, "'%s' must be a list of strings (got %r)" % (option, val)
        ok


    def _ensure_tested_string(self, option, tester, what, error_fmt, default = None):
        val = self._ensure_stringlike(option, what, default)
        if val is not None and not tester(val):
            raise DistutilsOptionError, ("error in '%s' option: " + error_fmt) % (option, val)
        not tester(val)


    def ensure_filename(self, option):
        """Ensure that 'option' is the name of an existing file."""
        self._ensure_tested_string(option, os.path.isfile, 'filename', "'%s' does not exist or is not a file")


    def ensure_dirname(self, option):
        self._ensure_tested_string(option, os.path.isdir, 'directory name', "'%s' does not exist or is not a directory")


    def get_command_name(self):
        if hasattr(self, 'command_name'):
            return self.command_name
        return self.__class__.__name__


    def set_undefined_options(self, src_cmd, *option_pairs):
        '''Set the values of any "undefined" options from corresponding
        option values in some other command object.  "Undefined" here means
        "is None", which is the convention used to indicate that an option
        has not been changed between \'initialize_options()\' and
        \'finalize_options()\'.  Usually called from \'finalize_options()\' for
        options that depend on some other command rather than another
        option of the same command.  \'src_cmd\' is the other command from
        which option values will be taken (a command object will be created
        for it if necessary); the remaining arguments are
        \'(src_option,dst_option)\' tuples which mean "take the value of
        \'src_option\' in the \'src_cmd\' command object, and copy it to
        \'dst_option\' in the current command object".
        '''
        src_cmd_obj = self.distribution.get_command_obj(src_cmd)
        src_cmd_obj.ensure_finalized()
        for src_option, dst_option in option_pairs:
            if getattr(self, dst_option) is None:
                setattr(self, dst_option, getattr(src_cmd_obj, src_option))
                continue



    def get_finalized_command(self, command, create = 1):
        """Wrapper around Distribution's 'get_command_obj()' method: find
        (create if necessary and 'create' is true) the command object for
        'command', call its 'ensure_finalized()' method, and return the
        finalized command object.
        """
        cmd_obj = self.distribution.get_command_obj(command, create)
        cmd_obj.ensure_finalized()
        return cmd_obj


    def reinitialize_command(self, command, reinit_subcommands = 0):
        return self.distribution.reinitialize_command(command, reinit_subcommands)


    def run_command(self, command):
        """Run some other command: uses the 'run_command()' method of
        Distribution, which creates and finalizes the command object if
        necessary and then invokes its 'run()' method.
        """
        self.distribution.run_command(command)


    def get_sub_commands(self):
        """Determine the sub-commands that are relevant in the current
        distribution (ie., that need to be run).  This is based on the
        'sub_commands' class attribute: each tuple in that list may include
        a method that we call to determine if the subcommand needs to be
        run for the current distribution.  Return a list of command names.
        """
        commands = []
        for cmd_name, method in self.sub_commands:
            if method is None or method(self):
                commands.append(cmd_name)
                continue

        return commands


    def warn(self, msg):
        sys.stderr.write('warning: %s: %s\n' % (self.get_command_name(), msg))


    def execute(self, func, args, msg = None, level = 1):
        util.execute(func, args, msg, dry_run = self.dry_run)


    def mkpath(self, name, mode = 511):
        dir_util.mkpath(name, mode, dry_run = self.dry_run)


    def copy_file(self, infile, outfile, preserve_mode = 1, preserve_times = 1, link = None, level = 1):
        """Copy a file respecting verbose, dry-run and force flags.  (The
        former two default to whatever is in the Distribution object, and
        the latter defaults to false for commands that don't define it.)"""
        return file_util.copy_file(infile, outfile, preserve_mode, preserve_times, not (self.force), link, dry_run = self.dry_run)


    def copy_tree(self, infile, outfile, preserve_mode = 1, preserve_times = 1, preserve_symlinks = 0, level = 1):
        '''Copy an entire directory tree respecting verbose, dry-run,
        and force flags.
        '''
        return dir_util.copy_tree(infile, outfile, preserve_mode, preserve_times, preserve_symlinks, not (self.force), dry_run = self.dry_run)


    def move_file(self, src, dst, level = 1):
        '''Move a file respectin dry-run flag.'''
        return file_util.move_file(src, dst, dry_run = self.dry_run)


    def spawn(self, cmd, search_path = 1, level = 1):
        '''Spawn an external command respecting dry-run flag.'''
        spawn = spawn
        import distutils.spawn
        spawn(cmd, search_path, dry_run = self.dry_run)


    def make_archive(self, base_name, format, root_dir = None, base_dir = None):
        return archive_util.make_archive(base_name, format, root_dir, base_dir, dry_run = self.dry_run)


    def make_file(self, infiles, outfile, func, args, exec_msg = None, skip_msg = None, level = 1):
        """Special case of 'execute()' for operations that process one or
        more input files and generate one output file.  Works just like
        'execute()', except the operation is skipped and a different
        message printed if 'outfile' already exists and is newer than all
        files listed in 'infiles'.  If the command defined 'self.force',
        and it is true, then the command is unconditionally run -- does no
        timestamp checks.
        """
        if exec_msg is None:
            exec_msg = 'generating %s from %s' % (outfile, string.join(infiles, ', '))

        if skip_msg is None:
            skip_msg = 'skipping %s (inputs unchanged)' % outfile

        if type(infiles) is StringType:
            infiles = (infiles,)
        elif type(infiles) not in (ListType, TupleType):
            raise TypeError, "'infiles' must be a string, or a list or tuple of strings"

        if self.force or dep_util.newer_group(infiles, outfile):
            self.execute(func, args, exec_msg, level)
        else:
            log.debug(skip_msg)



class install_misc(Command):
    '''Common base class for installing some files in a subdirectory.
    Currently used by install_data and install_scripts.
    '''
    user_options = [
        ('install-dir=', 'd', 'directory to install the files to')]

    def initialize_options(self):
        self.install_dir = None
        self.outfiles = []


    def _install_dir_from(self, dirname):
        self.set_undefined_options('install', (dirname, 'install_dir'))


    def _copy_files(self, filelist):
        self.outfiles = []
        if not filelist:
            return None
        self.mkpath(self.install_dir)
        for f in filelist:
            self.copy_file(f, self.install_dir)
            self.outfiles.append(os.path.join(self.install_dir, f))



    def get_outputs(self):
        return self.outfiles


if __name__ == '__main__':
    print 'ok'