initial import of the packaging package in the standard library
diff --git a/Lib/packaging/dist.py b/Lib/packaging/dist.py
new file mode 100644
index 0000000..6065e78
--- /dev/null
+++ b/Lib/packaging/dist.py
@@ -0,0 +1,819 @@
+"""Class representing the distribution being built/installed/etc."""
+
+import os
+import re
+
+from packaging.errors import (PackagingOptionError, PackagingArgError,
+ PackagingModuleError, PackagingClassError)
+from packaging.fancy_getopt import FancyGetopt
+from packaging.util import strtobool, resolve_name
+from packaging import logger
+from packaging.metadata import Metadata
+from packaging.config import Config
+from packaging.command import get_command_class, STANDARD_COMMANDS
+
+# Regex to define acceptable Packaging command names. This is not *quite*
+# the same as a Python NAME -- I don't allow leading underscores. The fact
+# that they're very similar is no coincidence; the default naming scheme is
+# to look for a Python module named after the command.
+command_re = re.compile(r'^[a-zA-Z]([a-zA-Z0-9_]*)$')
+
+USAGE = """\
+usage: %(script)s [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
+ or: %(script)s --help [cmd1 cmd2 ...]
+ or: %(script)s --help-commands
+ or: %(script)s cmd --help
+"""
+
+
+def gen_usage(script_name):
+ script = os.path.basename(script_name)
+ return USAGE % {'script': script}
+
+
+class Distribution:
+ """The core of the Packaging. Most of the work hiding behind 'setup'
+ is really done within a Distribution instance, which farms the work out
+ to the Packaging commands specified on the command line.
+
+ Setup scripts will almost never instantiate Distribution directly,
+ unless the 'setup()' function is totally inadequate to their needs.
+ However, it is conceivable that a setup script might wish to subclass
+ Distribution for some specialized purpose, and then pass the subclass
+ to 'setup()' as the 'distclass' keyword argument. If so, it is
+ necessary to respect the expectations that 'setup' has of Distribution.
+ See the code for 'setup()', in run.py, for details.
+ """
+
+ # 'global_options' describes the command-line options that may be
+ # supplied to the setup script prior to any actual commands.
+ # Eg. "./setup.py -n" or "./setup.py --dry-run" both take advantage of
+ # these global options. This list should be kept to a bare minimum,
+ # since every global option is also valid as a command option -- and we
+ # don't want to pollute the commands with too many options that they
+ # have minimal control over.
+ global_options = [
+ ('dry-run', 'n', "don't actually do anything"),
+ ('help', 'h', "show detailed help message"),
+ ('no-user-cfg', None, 'ignore pydistutils.cfg in your home directory'),
+ ]
+
+ # 'common_usage' is a short (2-3 line) string describing the common
+ # usage of the setup script.
+ common_usage = """\
+Common commands: (see '--help-commands' for more)
+
+ setup.py build will build the package underneath 'build/'
+ setup.py install will install the package
+"""
+
+ # options that are not propagated to the commands
+ display_options = [
+ ('help-commands', None,
+ "list all available commands"),
+ ('name', None,
+ "print package name"),
+ ('version', 'V',
+ "print package version"),
+ ('fullname', None,
+ "print <package name>-<version>"),
+ ('author', None,
+ "print the author's name"),
+ ('author-email', None,
+ "print the author's email address"),
+ ('maintainer', None,
+ "print the maintainer's name"),
+ ('maintainer-email', None,
+ "print the maintainer's email address"),
+ ('contact', None,
+ "print the maintainer's name if known, else the author's"),
+ ('contact-email', None,
+ "print the maintainer's email address if known, else the author's"),
+ ('url', None,
+ "print the URL for this package"),
+ ('license', None,
+ "print the license of the package"),
+ ('licence', None,
+ "alias for --license"),
+ ('description', None,
+ "print the package description"),
+ ('long-description', None,
+ "print the long package description"),
+ ('platforms', None,
+ "print the list of platforms"),
+ ('classifier', None,
+ "print the list of classifiers"),
+ ('keywords', None,
+ "print the list of keywords"),
+ ('provides', None,
+ "print the list of packages/modules provided"),
+ ('requires', None,
+ "print the list of packages/modules required"),
+ ('obsoletes', None,
+ "print the list of packages/modules made obsolete"),
+ ('use-2to3', None,
+ "use 2to3 to make source python 3.x compatible"),
+ ('convert-2to3-doctests', None,
+ "use 2to3 to convert doctests in seperate text files"),
+ ]
+ display_option_names = [x[0].replace('-', '_') for x in display_options]
+
+ # negative options are options that exclude other options
+ negative_opt = {}
+
+ # -- Creation/initialization methods -------------------------------
+ def __init__(self, attrs=None):
+ """Construct a new Distribution instance: initialize all the
+ attributes of a Distribution, and then use 'attrs' (a dictionary
+ mapping attribute names to values) to assign some of those
+ attributes their "real" values. (Any attributes not mentioned in
+ 'attrs' will be assigned to some null value: 0, None, an empty list
+ or dictionary, etc.) Most importantly, initialize the
+ 'command_obj' attribute to the empty dictionary; this will be
+ filled in with real command objects by 'parse_command_line()'.
+ """
+
+ # Default values for our command-line options
+ self.dry_run = False
+ self.help = False
+ for attr in self.display_option_names:
+ setattr(self, attr, False)
+
+ # Store the configuration
+ self.config = Config(self)
+
+ # Store the distribution metadata (name, version, author, and so
+ # forth) in a separate object -- we're getting to have enough
+ # information here (and enough command-line options) that it's
+ # worth it.
+ self.metadata = Metadata()
+
+ # 'cmdclass' maps command names to class objects, so we
+ # can 1) quickly figure out which class to instantiate when
+ # we need to create a new command object, and 2) have a way
+ # for the setup script to override command classes
+ self.cmdclass = {}
+
+ # 'script_name' and 'script_args' are usually set to sys.argv[0]
+ # and sys.argv[1:], but they can be overridden when the caller is
+ # not necessarily a setup script run from the command line.
+ self.script_name = None
+ self.script_args = None
+
+ # 'command_options' is where we store command options between
+ # parsing them (from config files, the command line, etc.) and when
+ # they are actually needed -- ie. when the command in question is
+ # instantiated. It is a dictionary of dictionaries of 2-tuples:
+ # command_options = { command_name : { option : (source, value) } }
+ self.command_options = {}
+
+ # 'dist_files' is the list of (command, pyversion, file) that
+ # have been created by any dist commands run so far. This is
+ # filled regardless of whether the run is dry or not. pyversion
+ # gives sysconfig.get_python_version() if the dist file is
+ # specific to a Python version, 'any' if it is good for all
+ # Python versions on the target platform, and '' for a source
+ # file. pyversion should not be used to specify minimum or
+ # maximum required Python versions; use the metainfo for that
+ # instead.
+ self.dist_files = []
+
+ # These options are really the business of various commands, rather
+ # than of the Distribution itself. We provide aliases for them in
+ # Distribution as a convenience to the developer.
+ self.packages = []
+ self.package_data = {}
+ self.package_dir = None
+ self.py_modules = []
+ self.libraries = []
+ self.headers = []
+ self.ext_modules = []
+ self.ext_package = None
+ self.include_dirs = []
+ self.extra_path = None
+ self.scripts = []
+ self.data_files = {}
+ self.password = ''
+ self.use_2to3 = False
+ self.convert_2to3_doctests = []
+ self.extra_files = []
+
+ # And now initialize bookkeeping stuff that can't be supplied by
+ # the caller at all. 'command_obj' maps command names to
+ # Command instances -- that's how we enforce that every command
+ # class is a singleton.
+ self.command_obj = {}
+
+ # 'have_run' maps command names to boolean values; it keeps track
+ # of whether we have actually run a particular command, to make it
+ # cheap to "run" a command whenever we think we might need to -- if
+ # it's already been done, no need for expensive filesystem
+ # operations, we just check the 'have_run' dictionary and carry on.
+ # It's only safe to query 'have_run' for a command class that has
+ # been instantiated -- a false value will be inserted when the
+ # command object is created, and replaced with a true value when
+ # the command is successfully run. Thus it's probably best to use
+ # '.get()' rather than a straight lookup.
+ self.have_run = {}
+
+ # Now we'll use the attrs dictionary (ultimately, keyword args from
+ # the setup script) to possibly override any or all of these
+ # distribution options.
+
+ if attrs is not None:
+ # Pull out the set of command options and work on them
+ # specifically. Note that this order guarantees that aliased
+ # command options will override any supplied redundantly
+ # through the general options dictionary.
+ options = attrs.get('options')
+ if options is not None:
+ del attrs['options']
+ for command, cmd_options in options.items():
+ opt_dict = self.get_option_dict(command)
+ for opt, val in cmd_options.items():
+ opt_dict[opt] = ("setup script", val)
+
+ # Now work on the rest of the attributes. Any attribute that's
+ # not already defined is invalid!
+ for key, val in attrs.items():
+ if self.metadata.is_metadata_field(key):
+ self.metadata[key] = val
+ elif hasattr(self, key):
+ setattr(self, key, val)
+ else:
+ logger.warning(
+ 'unknown argument given to Distribution: %r', key)
+
+ # no-user-cfg is handled before other command line args
+ # because other args override the config files, and this
+ # one is needed before we can load the config files.
+ # If attrs['script_args'] wasn't passed, assume false.
+ #
+ # This also make sure we just look at the global options
+ self.want_user_cfg = True
+
+ if self.script_args is not None:
+ for arg in self.script_args:
+ if not arg.startswith('-'):
+ break
+ if arg == '--no-user-cfg':
+ self.want_user_cfg = False
+ break
+
+ self.finalize_options()
+
+ 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 get_fullname(self):
+ return self.metadata.get_fullname()
+
+ def dump_option_dicts(self, header=None, commands=None, indent=""):
+ from pprint import pformat
+
+ if commands is None: # dump all command option dicts
+ commands = sorted(self.command_options)
+
+ if header is not None:
+ logger.info(indent + header)
+ indent = indent + " "
+
+ if not commands:
+ logger.info(indent + "no commands known yet")
+ return
+
+ for cmd_name in commands:
+ opt_dict = self.command_options.get(cmd_name)
+ if opt_dict is None:
+ logger.info(indent + "no option dict for %r command",
+ cmd_name)
+ else:
+ logger.info(indent + "option dict for %r command:", cmd_name)
+ out = pformat(opt_dict)
+ for line in out.split('\n'):
+ logger.info(indent + " " + line)
+
+ # -- Config file finding/parsing methods ---------------------------
+ # XXX to be removed
+ def parse_config_files(self, filenames=None):
+ return self.config.parse_config_files(filenames)
+
+ def find_config_files(self):
+ return self.config.find_config_files()
+
+ # -- Command-line parsing methods ----------------------------------
+
+ 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)
+ parser.set_aliases({'licence': 'license'})
+ 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.
+ # "setup.py --help" and "setup.py --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 1
+
+ def _get_toplevel_options(self):
+ """Return the non-display options recognized at the top level.
+
+ This includes options that are recognized *only* at the top
+ level as well as options recognized for commands.
+ """
+ return self.global_options
+
+ def _parse_command_opts(self, parser, args):
+ """Parse the command-line options for a single command.
+ 'parser' must be a FancyGetopt instance; 'args' must be the list
+ of arguments, starting with the current command (whose options
+ we are about to parse). Returns a new version of 'args' with
+ the next command at the front of the list; will be the empty
+ list if there are no more commands on the command line. Returns
+ None if the user asked for help on this command.
+ """
+ # Pull the current command from the head of the command line
+ command = args[0]
+ if not command_re.match(command):
+ raise SystemExit("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:
+ raise PackagingArgError(msg)
+
+ # XXX We want to push this in packaging.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 = self.negative_opt
+ if hasattr(cmd_class, 'negative_opt'):
+ negative_opt = negative_opt.copy()
+ 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(self.global_options +
+ cmd_class.user_options +
+ help_options)
+ parser.set_negative_aliases(negative_opt)
+ args, opts = parser.getopt(args[1:])
+ if hasattr(opts, 'help') and opts.help:
+ self._show_help(parser, display_options=False,
+ commands=[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 hasattr(func, '__call__'):
+ 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 finalize_options(self):
+ """Set final values for all the options on the Distribution
+ instance, analogous to the .finalize_options() method of Command
+ objects.
+ """
+ if getattr(self, 'convert_2to3_doctests', None):
+ self.convert_2to3_doctests = [os.path.join(p)
+ for p in self.convert_2to3_doctests]
+ else:
+ self.convert_2to3_doctests = []
+
+ def _show_help(self, parser, global_options=True, display_options=True,
+ commands=[]):
+ """Show help for the setup script command line in the form of
+ several lists of command-line options. 'parser' should be a
+ FancyGetopt instance; do not expect it to be returned in the
+ same state, as its option table will be reset to make it
+ generate the correct help text.
+
+ If 'global_options' is true, lists the global options:
+ --dry-run, etc. If 'display_options' is true, lists
+ the "display-only" options: --name, --version, etc. Finally,
+ lists per-command help for every command name or command class
+ in 'commands'.
+ """
+ # late import because of mutual dependence between these modules
+ from packaging.command.cmd import Command
+
+ if global_options:
+ if display_options:
+ options = self._get_toplevel_options()
+ else:
+ options = self.global_options
+ parser.set_option_table(options)
+ parser.print_help(self.common_usage + "\nGlobal options:")
+ print('')
+
+ if display_options:
+ parser.set_option_table(self.display_options)
+ parser.print_help(
+ "Information display options (just display " +
+ "information, ignore any commands)")
+ print('')
+
+ for command in self.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('')
+
+ print(gen_usage(self.script_name))
+
+ def handle_display_options(self, option_order):
+ """If there were any non-global "display-only" options
+ (--help-commands or the metadata display options) on the command
+ line, display the requested info and return true; else return
+ false.
+ """
+ # User just wants a list of commands -- we'll print it out and stop
+ # processing now (ie. if they ran "setup --help-commands foo bar",
+ # we ignore "foo bar").
+ if self.help_commands:
+ self.print_commands()
+ print('')
+ print(gen_usage(self.script_name))
+ return 1
+
+ # If user supplied any of the "display metadata" options, then
+ # display that metadata in the order in which the user supplied the
+ # metadata options.
+ any_display_options = False
+ is_display_option = set()
+ for option in self.display_options:
+ is_display_option.add(option[0])
+
+ for opt, val in option_order:
+ if val and opt in is_display_option:
+ opt = opt.replace('-', '_')
+ value = self.metadata[opt]
+ if opt in ('keywords', 'platform'):
+ print(','.join(value))
+ elif opt in ('classifier', 'provides', 'requires',
+ 'obsoletes'):
+ print('\n'.join(value))
+ else:
+ print(value)
+ any_display_options = True
+
+ return any_display_options
+
+ 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 _get_command_groups(self):
+ """Helper function to retrieve all the command class names divided
+ into standard commands (listed in
+ packaging2.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 packaging2.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 = 0
+ for cmd in (std_commands + extra_commands):
+ if len(cmd) > max_length:
+ max_length = len(cmd)
+
+ self.print_command_list(std_commands,
+ "Standard commands",
+ max_length)
+ if extra_commands:
+ print()
+ self.print_command_list(extra_commands,
+ "Extra commands",
+ max_length)
+
+ # -- Command class/object methods ----------------------------------
+
+ def get_command_obj(self, command, create=True):
+ """Return the command object for 'command'. Normally this object
+ is cached on a previous call to 'get_command_obj()'; if no command
+ object for 'command' is in the cache, then we either create and
+ return it (if 'create' is true) or return None.
+ """
+ cmd_obj = self.command_obj.get(command)
+ if not cmd_obj and create:
+ logger.debug("Distribution.get_command_obj(): " \
+ "creating %r command object", command)
+
+ cls = get_command_class(command)
+ cmd_obj = self.command_obj[command] = cls(self)
+ self.have_run[command] = 0
+
+ # Set any options that were supplied in config files
+ # or on the command line. (NB. support for error
+ # reporting is lame here: any errors aren't reported
+ # until 'finalize_options()' is called, which means
+ # we won't report the source of the error.)
+ options = self.command_options.get(command)
+ if options:
+ self._set_command_options(cmd_obj, options)
+
+ return cmd_obj
+
+ def _set_command_options(self, command_obj, option_dict=None):
+ """Set the options for 'command_obj' from 'option_dict'. Basically
+ this means copying elements of a dictionary ('option_dict') to
+ attributes of an instance ('command').
+
+ 'command_obj' must be a Command instance. If 'option_dict' is not
+ supplied, uses the standard option dictionary for this command
+ (from 'self.command_options').
+ """
+ command_name = command_obj.get_command_name()
+ if option_dict is None:
+ option_dict = self.get_option_dict(command_name)
+
+ logger.debug(" setting options for %r command:", command_name)
+
+ for option, (source, value) in option_dict.items():
+ logger.debug(" %s = %s (from %s)", option, value, source)
+ try:
+ bool_opts = [x.replace('-', '_')
+ for x in command_obj.boolean_options]
+ except AttributeError:
+ bool_opts = []
+ try:
+ neg_opt = command_obj.negative_opt
+ except AttributeError:
+ neg_opt = {}
+
+ try:
+ is_string = isinstance(value, str)
+ if option in neg_opt and is_string:
+ setattr(command_obj, neg_opt[option], not strtobool(value))
+ elif option in bool_opts and is_string:
+ setattr(command_obj, option, strtobool(value))
+ elif hasattr(command_obj, option):
+ setattr(command_obj, option, value)
+ else:
+ raise PackagingOptionError(
+ "error in %s: command %r has no such option %r" %
+ (source, command_name, option))
+ except ValueError as msg:
+ raise PackagingOptionError(msg)
+
+ def get_reinitialized_command(self, command, reinit_subcommands=False):
+ """Reinitializes a command to the state it was in when first
+ returned by 'get_command_obj()': ie., initialized but not yet
+ finalized. This provides the opportunity to sneak option
+ values in programmatically, overriding or supplementing
+ user-supplied values from the config files and command line.
+ You'll have to re-finalize the command object (by calling
+ 'finalize_options()' or 'ensure_finalized()') before using it for
+ real.
+
+ 'command' should be a command name (string) or command object. If
+ 'reinit_subcommands' is true, also reinitializes the command's
+ sub-commands, as declared by the 'sub_commands' class attribute (if
+ it has one). See the "install_dist" command for an example. Only
+ reinitializes the sub-commands that actually matter, ie. those
+ whose test predicates return true.
+
+ Returns the reinitialized command object.
+ """
+ from packaging.command.cmd import Command
+ if not isinstance(command, Command):
+ command_name = command
+ command = self.get_command_obj(command_name)
+ else:
+ command_name = command.get_command_name()
+
+ if not command.finalized:
+ return command
+ command.initialize_options()
+ self.have_run[command_name] = 0
+ command.finalized = False
+ self._set_command_options(command)
+
+ if reinit_subcommands:
+ for sub in command.get_sub_commands():
+ self.get_reinitialized_command(sub, reinit_subcommands)
+
+ return command
+
+ # -- Methods that operate on the Distribution ----------------------
+
+ def run_commands(self):
+ """Run each command that was seen on the setup script command line.
+ Uses the list of commands found and cache of command objects
+ created by 'get_command_obj()'.
+ """
+ for cmd in self.commands:
+ self.run_command(cmd)
+
+ # -- Methods that operate on its Commands --------------------------
+
+ def run_command(self, command, options=None):
+ """Do whatever it takes to run a command (including nothing at all,
+ if the command has already been run). Specifically: if we have
+ already created and run the command named by 'command', return
+ silently without doing anything. If the command named by 'command'
+ doesn't even have a command object yet, create one. Then invoke
+ 'run()' on that command object (or an existing one).
+ """
+ # Already been here, done that? then return silently.
+ if self.have_run.get(command):
+ return
+
+ if options is not None:
+ self.command_options[command] = options
+
+ cmd_obj = self.get_command_obj(command)
+ cmd_obj.ensure_finalized()
+ self.run_command_hooks(cmd_obj, 'pre_hook')
+ logger.info("running %s", command)
+ cmd_obj.run()
+ self.run_command_hooks(cmd_obj, 'post_hook')
+ self.have_run[command] = 1
+
+ def run_command_hooks(self, cmd_obj, hook_kind):
+ """Run hooks registered for that command and phase.
+
+ *cmd_obj* is a finalized command object; *hook_kind* is either
+ 'pre_hook' or 'post_hook'.
+ """
+ if hook_kind not in ('pre_hook', 'post_hook'):
+ raise ValueError('invalid hook kind: %r' % hook_kind)
+
+ hooks = getattr(cmd_obj, hook_kind, None)
+
+ if hooks is None:
+ return
+
+ for hook in hooks.values():
+ if isinstance(hook, str):
+ try:
+ hook_obj = resolve_name(hook)
+ except ImportError as e:
+ raise PackagingModuleError(e)
+ else:
+ hook_obj = hook
+
+ if not hasattr(hook_obj, '__call__'):
+ raise PackagingOptionError('hook %r is not callable' % hook)
+
+ logger.info('running %s %s for command %s',
+ hook_kind, hook, cmd_obj.get_command_name())
+ hook_obj(cmd_obj)
+
+ # -- Distribution query methods ------------------------------------
+ def has_pure_modules(self):
+ return len(self.packages or self.py_modules or []) > 0
+
+ def has_ext_modules(self):
+ return self.ext_modules and len(self.ext_modules) > 0
+
+ def has_c_libraries(self):
+ return self.libraries and len(self.libraries) > 0
+
+ def has_modules(self):
+ return self.has_pure_modules() or self.has_ext_modules()
+
+ def has_headers(self):
+ return self.headers and len(self.headers) > 0
+
+ def has_scripts(self):
+ return self.scripts and len(self.scripts) > 0
+
+ def has_data_files(self):
+ return self.data_files and len(self.data_files) > 0
+
+ def is_pure(self):
+ return (self.has_pure_modules() and
+ not self.has_ext_modules() and
+ not self.has_c_libraries())