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"""distutils.core
The only module that needs to be imported to use the Distutils; provides
the 'setup' function (which is to be called from the setup script). Also
indirectly provides the Distribution and Command classes, although they are
really defined in distutils.dist and distutils.cmd.
"""
# created 1999/03/01, Greg Ward
__revision__ = "$Id$"
import sys, os
from types import *
from distutils.errors import *
from distutils.util import grok_environment_error
# Mainly import these so setup scripts can "from distutils.core import" them.
from distutils.dist import Distribution
from distutils.cmd import Command
from distutils.extension import Extension
# This is a barebones help message generated displayed when the user
# runs the setup script with no arguments at all. More useful help
# is generated with various --help options: global help, list commands,
# and per-command help.
usage = """\
usage: %s [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
or: %s --help [cmd1 cmd2 ...]
or: %s --help-commands
or: %s cmd --help
""" % ((os.path.basename(sys.argv[0]),) * 4)
# If DISTUTILS_DEBUG is anything other than the empty string, we run in
# debug mode.
DEBUG = os.environ.get('DISTUTILS_DEBUG')
def setup (**attrs):
"""The gateway to the Distutils: do everything your setup script needs
to do, in a highly flexible and user-driven way. Briefly: create a
Distribution instance; find and parse config files; parse the command
line; run each of those commands using the options supplied to
'setup()' (as keyword arguments), in config files, and on the command
line.
The Distribution instance might be an instance of a class supplied via
the 'distclass' keyword argument to 'setup'; if no such class is
supplied, then the Distribution class (in dist.py) is instantiated.
All other arguments to 'setup' (except for 'cmdclass') are used to set
attributes of the Distribution instance.
The 'cmdclass' argument, if supplied, is a dictionary mapping command
names to command classes. Each command encountered on the command line
will be turned into a command class, which is in turn instantiated; any
class found in 'cmdclass' is used in place of the default, which is
(for command 'foo_bar') class 'foo_bar' in module
'distutils.command.foo_bar'. The command class must provide a
'user_options' attribute which is a list of option specifiers for
'distutils.fancy_getopt'. Any command-line options between the current
and the next command are used to set attributes of the current command
object.
When the entire command-line has been successfully parsed, calls the
'run()' method on each command object in turn. This method will be
driven entirely by the Distribution object (which each command object
has a reference to, thanks to its constructor), and the
command-specific options that became attributes of each command
object.
"""
# Determine the distribution class -- either caller-supplied or
# our Distribution (see below).
klass = attrs.get ('distclass')
if klass:
del attrs['distclass']
else:
klass = Distribution
# Create the Distribution instance, using the remaining arguments
# (ie. everything except distclass) to initialize it
try:
dist = klass (attrs)
except DistutilsSetupError, msg:
raise SystemExit, "error in setup script: %s" % msg
# Find and parse the config file(s): they will override options from
# the setup script, but be overridden by the command line.
dist.parse_config_files()
if DEBUG:
print "options (after parsing config files):"
dist.dump_option_dicts()
# Parse the command line; any command-line errors are the end user's
# fault, so turn them into SystemExit to suppress tracebacks.
try:
ok = dist.parse_command_line (sys.argv[1:])
except DistutilsArgError, msg:
sys.stderr.write (usage + "\n")
raise SystemExit, "error: %s" % msg
if DEBUG:
print "options (after parsing command line):"
dist.dump_option_dicts()
# And finally, run all the commands found on the command line.
if ok:
try:
dist.run_commands ()
except KeyboardInterrupt:
raise SystemExit, "interrupted"
except (IOError, os.error), exc:
error = grok_environment_error(exc)
if DEBUG:
sys.stderr.write(error + "\n")
raise
else:
raise SystemExit, error
except (DistutilsExecError,
DistutilsFileError,
DistutilsOptionError,
CCompilerError), msg:
if DEBUG:
raise
else:
raise SystemExit, "error: " + str(msg)
# setup ()
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