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ba38d12063
Added 'get_inputs()' (which is strikingly similar to 'get_outputs()' - sigh). Cosmetic tweaks.
423 lines
16 KiB
Python
423 lines
16 KiB
Python
"""distutils.command.install
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Implements the Distutils 'install' command."""
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# created 1999/03/13, Greg Ward
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__revision__ = "$Id$"
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import sys, os, string
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from types import *
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from distutils.core import Command
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from distutils.util import write_file, native_path, subst_vars
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from distutils.errors import DistutilsOptionError
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INSTALL_SCHEMES = {
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'unix_prefix': {
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'purelib': '$base/lib/python$py_version_short/site-packages',
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'platlib': '$platbase/lib/python$py_version_short/site-packages',
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'scripts': '$base/bin',
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'data' : '$base/share',
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},
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'unix_home': {
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'purelib': '$base/lib/python',
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'platlib': '$base/lib/python',
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'scripts': '$base/bin',
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'data' : '$base/share',
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},
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'nt': {
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'purelib': '$base',
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'platlib': '$base',
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'scripts': '$base\\Scripts',
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'data' : '$base\\Data',
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},
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'mac': {
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'purelib': '$base:Lib',
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'platlib': '$base:Mac:PlugIns',
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'scripts': '$base:Scripts',
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'data' : '$base:Data',
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}
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}
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class install (Command):
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description = "install everything from build directory"
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user_options = [
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# Select installation scheme and set base director(y|ies)
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('prefix=', None,
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"installation prefix"),
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('exec-prefix=', None,
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"(Unix only) prefix for platform-specific files"),
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('home=', None,
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"(Unix only) home directory to install under"),
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# Or, just set the base director(y|ies)
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('install-base=', None,
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"base installation directory (instead of --prefix or --home)"),
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('install-platbase=', None,
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"base installation directory for platform-specific files " +
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"(instead of --exec-prefix or --home)"),
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# Or, explicitly set the installation scheme
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('install-purelib=', None,
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"installation directory for pure Python module distributions"),
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('install-platlib=', None,
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"installation directory for non-pure module distributions"),
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('install-lib=', None,
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"installation directory for all module distributions " +
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"(overrides --install-purelib and --install-platlib)"),
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('install-scripts=', None,
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"installation directory for Python scripts"),
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('install-data=', None,
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"installation directory for data files"),
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# Where to install documentation (eventually!)
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#('doc-format=', None, "format of documentation to generate"),
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#('install-man=', None, "directory for Unix man pages"),
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#('install-html=', None, "directory for HTML documentation"),
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#('install-info=', None, "directory for GNU info files"),
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]
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# 'sub_commands': a list of commands this command might have to run
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# to get its work done. Each command is represented as a tuple
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# (func, command) where 'func' is a function to call that returns
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# true if 'command' (the sub-command name, a string) needs to be
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# run. If 'func' is None, assume that 'command' must always be run.
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sub_commands = [(None, 'install_lib')]
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def initialize_options (self):
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# High-level options: these select both an installation base
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# and scheme.
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self.prefix = None
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self.exec_prefix = None
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self.home = None
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# These select only the installation base; it's up to the user to
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# specify the installation scheme (currently, that means supplying
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# the --install-{platlib,purelib,scripts,data} options).
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self.install_base = None
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self.install_platbase = None
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# These options are the actual installation directories; if not
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# supplied by the user, they are filled in using the installation
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# scheme implied by prefix/exec-prefix/home and the contents of
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# that installation scheme.
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self.install_purelib = None # for pure module distributions
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self.install_platlib = None # non-pure (dists w/ extensions)
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self.install_lib = None # set to either purelib or platlib
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self.install_scripts = None
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self.install_data = None
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# These two are for putting non-packagized distributions into their
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# own directory and creating a .pth file if it makes sense.
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# 'extra_path' comes from the setup file; 'install_path_file' is
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# set only if we determine that it makes sense to install a path
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# file.
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self.extra_path = None
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self.install_path_file = 0
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# These are only here as a conduit from the 'build' command to the
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# 'install_*' commands that do the real work. ('build_base' isn't
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# actually used anywhere, but it might be useful in future.) They
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# are not user options, because if the user told the install
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# command where the build directory is, that wouldn't affect the
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# build command.
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self.build_base = None
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self.build_lib = None
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# Not defined yet because we don't know anything about
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# documentation yet.
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#self.install_man = None
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#self.install_html = None
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#self.install_info = None
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def finalize_options (self):
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# This method (and its pliant slaves, like 'finalize_unix()',
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# 'finalize_other()', and 'select_scheme()') is where the default
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# installation directories for modules, extension modules, and
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# anything else we care to install from a Python module
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# distribution. Thus, this code makes a pretty important policy
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# statement about how third-party stuff is added to a Python
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# installation! Note that the actual work of installation is done
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# by the relatively simple 'install_*' commands; they just take
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# their orders from the installation directory options determined
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# here.
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# Check for errors/inconsistencies in the options; first, stuff
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# that's wrong on any platform.
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if ((self.prefix or self.exec_prefix or self.home) and
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(self.install_base or self.install_platbase)):
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raise DistutilsOptionError, \
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("must supply either prefix/exec-prefix/home or " +
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"install-base/install-platbase -- not both")
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# Next, stuff that's wrong (or dubious) only on certain platforms.
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if os.name == 'posix':
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if self.home and (self.prefix or self.exec_prefix):
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raise DistutilsOptionError, \
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("must supply either home or prefix/exec-prefix -- " +
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"not both")
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else:
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if self.exec_prefix:
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self.warn ("exec-prefix option ignored on this platform")
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self.exec_prefix = None
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if self.home:
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self.warn ("home option ignored on this platform")
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self.home = None
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# Now the interesting logic -- so interesting that we farm it out
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# to other methods. The goal of these methods is to set the final
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# values for the install_{lib,scripts,data,...} options, using as
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# input a heady brew of prefix, exec_prefix, home, install_base,
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# install_platbase, user-supplied versions of
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# install_{purelib,platlib,lib,scripts,data,...}, and the
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# INSTALL_SCHEME dictionary above. Phew!
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if os.name == 'posix':
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self.finalize_unix ()
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else:
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self.finalize_other ()
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# Expand "~" and configuration variables in the installation
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# directories.
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self.expand_dirs ()
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# Pick the actual directory to install all modules to: either
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# install_purelib or install_platlib, depending on whether this
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# module distribution is pure or not. Of course, if the user
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# already specified install_lib, use their selection.
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if self.install_lib is None:
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if self.distribution.ext_modules: # has extensions: non-pure
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self.install_lib = self.install_platlib
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else:
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self.install_lib = self.install_purelib
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# Well, we're not actually fully completely finalized yet: we still
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# have to deal with 'extra_path', which is the hack for allowing
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# non-packagized module distributions (hello, Numerical Python!) to
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# get their own directories.
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self.handle_extra_path ()
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self.install_libbase = self.install_lib # needed for .pth file
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self.install_lib = os.path.join (self.install_lib, self.extra_dirs)
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# Find out the build directories, ie. where to install from.
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self.set_undefined_options ('build',
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('build_base', 'build_base'),
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('build_lib', 'build_lib'))
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# Punt on doc directories for now -- after all, we're punting on
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# documentation completely!
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# finalize_options ()
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def finalize_unix (self):
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if self.install_base is not None or self.install_platbase is not None:
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if ((self.install_lib is None and
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self.install_purelib is None and
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self.install_platlib is None) or
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self.install_scripts is None or
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self.install_data is None):
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raise DistutilsOptionError, \
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"install-base or install-platbase supplied, but " + \
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"installation scheme is incomplete"
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return
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if self.home is not None:
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self.install_base = self.install_platbase = self.home
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self.select_scheme ("unix_home")
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else:
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if self.prefix is None:
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if self.exec_prefix is not None:
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raise DistutilsOptionError, \
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"must not supply exec-prefix without prefix"
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self.prefix = os.path.normpath (sys.prefix)
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self.exec_prefix = os.path.normpath (sys.exec_prefix)
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self.install_path_file = 1
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else:
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if self.exec_prefix is None:
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self.exec_prefix = self.prefix
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# XXX since we don't *know* that a user-supplied prefix really
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# points to another Python installation, we can't be sure that
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# writing a .pth file there will actually work -- so we don't
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# try. That is, we only set 'install_path_file' if the user
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# didn't supply prefix. There are certainly circumstances
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# under which we *should* install a .pth file when the user
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# supplies a prefix, namely when that prefix actually points to
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# another Python installation. Hmmm.
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self.install_base = self.prefix
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self.install_platbase = self.exec_prefix
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self.select_scheme ("unix_prefix")
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# finalize_unix ()
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def finalize_other (self): # Windows and Mac OS for now
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if self.prefix is None:
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self.prefix = os.path.normpath (sys.prefix)
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self.install_path_file = 1
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# XXX same caveat regarding 'install_path_file' as in
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# 'finalize_unix()'.
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self.install_base = self.install_platbase = self.prefix
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try:
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self.select_scheme (os.name)
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except KeyError:
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raise DistutilsPlatformError, \
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"I don't know how to install stuff on '%s'" % os.name
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# finalize_other ()
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def select_scheme (self, name):
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# "select a scheme" means:
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# - set install-base and install-platbase
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# - subst. base/platbase/version into the values of the
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# particular scheme dictionary
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# - use the resultings strings to set install-lib, etc.
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# it's the caller's problem if they supply a bad name!
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scheme = INSTALL_SCHEMES[name]
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vars = { 'base': self.install_base,
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'platbase': self.install_platbase,
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'py_version_short': sys.version[0:3],
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}
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for key in ('purelib', 'platlib', 'scripts', 'data'):
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val = subst_vars (scheme[key], vars)
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setattr (self, 'install_' + key, val)
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def expand_dirs (self):
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# XXX probably don't want to 'expanduser()' on Windows or Mac
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# XXX should use 'util.subst_vars()' with our own set of
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# configuration variables
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for att in ('base', 'platbase',
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'purelib', 'platlib', 'lib',
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'scripts', 'data'):
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fullname = "install_" + att
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val = getattr (self, fullname)
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if val is not None:
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setattr (self, fullname,
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os.path.expandvars (os.path.expanduser (val)))
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def handle_extra_path (self):
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if self.extra_path is None:
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self.extra_path = self.distribution.extra_path
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if self.extra_path is not None:
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if type (self.extra_path) is StringType:
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self.extra_path = string.split (self.extra_path, ',')
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if len (self.extra_path) == 1:
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path_file = extra_dirs = self.extra_path[0]
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elif len (self.extra_path) == 2:
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(path_file, extra_dirs) = self.extra_path
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else:
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raise DistutilsOptionError, \
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"'extra_path' option must be a list, tuple, or " + \
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"comma-separated string with 1 or 2 elements"
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# convert to local form in case Unix notation used (as it
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# should be in setup scripts)
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extra_dirs = native_path (extra_dirs)
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else:
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path_file = None
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extra_dirs = ''
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# XXX should we warn if path_file and not extra_dirs? (in which
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# case the path file would be harmless but pointless)
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self.path_file = path_file
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self.extra_dirs = extra_dirs
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# handle_extra_path ()
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def run (self):
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# Obviously have to build before we can install
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self.run_peer ('build')
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# Run all sub-commands: currently this just means install all
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# Python modules using 'install_lib'.
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for (func, cmd_name) in self.sub_commands:
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if func is None or func():
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self.run_peer (cmd_name)
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if self.path_file:
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self.create_path_file ()
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normalized_path = map (os.path.normpath, sys.path)
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if (not (self.path_file and self.install_path_file) and
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os.path.normpath (self.install_lib) not in normalized_path):
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self.warn (("modules installed to '%s', which is not in " +
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"Python's module search path (sys.path) -- " +
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"you'll have to change the search path yourself") %
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self.install_lib)
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# run ()
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def get_outputs (self):
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# This command doesn't have any outputs of its own, so just
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# get the outputs of all its sub-commands.
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outputs = []
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for (func, cmd_name) in self.sub_commands:
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if func is None or func():
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cmd = self.find_peer (cmd_name)
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outputs.extend (cmd.get_outputs())
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return outputs
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def get_inputs (self):
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# XXX gee, this looks familiar ;-(
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inputs = []
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for (func, cmd_name) in self.sub_commands:
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if func is None or func():
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cmd = self.find_peer (cmd_name)
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inputs.extend (cmd.get_inputs())
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return inputs
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def create_path_file (self):
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filename = os.path.join (self.install_libbase,
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self.path_file + ".pth")
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if self.install_path_file:
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self.execute (write_file,
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(filename, [self.extra_dirs]),
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"creating %s" % filename)
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else:
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self.warn (("path file '%s' not created for alternate or custom " +
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"installation (path files only work with standard " +
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"installations)") %
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filename)
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# class Install
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