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253 lines
10 KiB
Python
253 lines
10 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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__rcsid__ = "$Id$"
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import sys, os, string
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from distutils import sysconfig
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from distutils.core import Command
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class Install (Command):
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options = [('prefix=', None, "installation prefix"),
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('execprefix=', None,
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"prefix for platform-specific files"),
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# Build directories: where to install from
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('build-base=', None,
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"base build directory"),
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('build-lib=', None,
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"build directory for non-platform-specific library files"),
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('build-platlib=', None,
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"build directory for platform-specific library files"),
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# Installation directories: where to put modules and packages
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('install-lib=', None,
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"base Python library directory"),
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('install-platlib=', None,
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"platform-specific Python library directory"),
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('install-site-lib=', None,
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"directory for site-specific packages and modules"),
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('install-site-platlib=', None,
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"platform-specific site directory"),
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('install-scheme=', None,
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"install to 'system' or 'site' library directory?"),
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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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# Flags for 'build_py'
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('compile-py', None, "compile .py to .pyc"),
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('optimize-py', None, "compile .py to .pyo (optimized)"),
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]
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def set_default_options (self):
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self.build_base = None
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self.build_lib = None
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self.build_platlib = None
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# Don't define 'prefix' or 'exec_prefix' so we can know when the
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# command is run whether the user supplied values
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self.prefix = None
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self.exec_prefix = None
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# These two, we can supply real values for! (because they're
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# not directories, and don't have a confusing multitude of
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# possible derivations)
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#self.install_scheme = 'site'
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self.doc_format = None
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# The actual installation directories are determined only at
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# run-time, so the user can supply just prefix (and exec_prefix?)
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# as a base for everything else
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self.install_lib = None
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self.install_platlib = None
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self.install_site_lib = None
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self.install_site_platlib = None
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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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self.compile_py = 1
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self.optimize_py = 1
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def set_final_options (self):
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# XXX this method is where the default installation directories
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# for modules and extension modules are determined. (Someday,
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# the default installation directories for scripts,
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# documentation, and whatever else the Distutils can build and
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# install will also be determined here.) Thus, this is a pretty
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# important place to fiddle with for anyone interested in
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# installation schemes for the Python library. Issues that
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# are not yet resolved to my satisfaction:
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# * how much platform dependence should be here, and
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# how much can be pushed off to sysconfig (or, better, the
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# Makefiles parsed by sysconfig)?
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# * how independent of Python version should this be -- ie.
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# should we have special cases to handle Python 1.5 and
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# older, and then do it "the right way" for 1.6? Or should
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# we install a site.py along with Distutils under pre-1.6
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# Python to take care of the current deficiencies in
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# Python's library installation scheme?
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#
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# Currently, this method has hacks to distinguish POSIX from
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# non-POSIX systems (for installation of site-local modules),
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# and assumes the Python 1.5 installation tree with no site.py
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# to fix things.
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# Figure out the build directories, ie. where to install from
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self.set_peer_option ('build', 'basedir', self.build_base)
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self.set_undefined_options ('build',
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('basedir', 'build_base'),
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('libdir', 'build_lib'),
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('platdir', 'build_platlib'))
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# Figure out actual installation directories; the basic principle
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# is: if the user supplied nothing, then use the directories that
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# Python was built and installed with (ie. the compiled-in prefix
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# and exec_prefix, and the actual installation directories gleaned
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# by sysconfig). If the user supplied a prefix (and possibly
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# exec_prefix), then we generate our own installation directories,
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# following any pattern gleaned from sysconfig's findings. If no
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# such pattern can be gleaned, then we'll just make do and try to
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# ape the behaviour of Python's configure script.
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if self.prefix is None: # user didn't override
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self.prefix = sys.prefix
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if self.exec_prefix is None:
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self.exec_prefix = sys.exec_prefix
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if self.install_lib is None:
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self.install_lib = \
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self.replace_sys_prefix ('LIBDEST', ('lib','python1.5'))
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if self.install_platlib is None:
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# XXX this should probably be DESTSHARED -- but why is there no
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# equivalent to DESTSHARED for the "site-packages" dir"?
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self.install_platlib = \
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self.replace_sys_prefix ('BINLIBDEST', ('lib','python1.5'), 1)
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# Here is where we decide where to install most library files:
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# on POSIX systems, they go to 'site-packages' under the
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# install_lib (determined above -- typically
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# /usr/local/lib/python1.x). Unfortunately, both
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# platform-independent (.py*) and platform-specific (.so) files
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# go to this directory, since there is no site-packages under
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# $exec_prefix in the usual way that Python builds sys.path. On
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# non-POSIX systems, the situation is even worse: everything
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# gets dumped right into $exec_prefix, not even a lib
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# subdirectory! But apparently that's what needs to be done to
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# make it work under Python 1.5 -- hope we can get this fixed
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# for 1.6!
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if self.install_site_lib is None:
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if os.name == 'posix':
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self.install_site_lib = \
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os.path.join (self.install_lib, 'site-packages')
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else:
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self.install_site_lib = self.exec_prefix
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if self.install_site_platlib is None:
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if os.name == 'posix':
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# XXX ugh! this puts platform-specific files in with
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# shared files, with no nice way to override it! (this
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# might be a Python problem, though, not a Distutils
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# problem...)
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# NO: the way to fix this is
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# * any platform-dependent files in distribution?
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# yes: install under exec-prefix
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# no: install under prefix
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# ...which will require a pretty major rethink of all
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# this. Damn.
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self.install_site_platlib = \
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os.path.join (self.install_lib, 'site-packages')
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else:
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self.install_site_platlib = self.exec_prefix
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#if self.install_scheme == 'site':
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# install_lib = self.install_site_lib
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# install_platlib = self.install_site_platlib
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#elif self.install_scheme == 'system':
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# install_lib = self.install_lib
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# install_platlib = self.install_platlib
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#else:
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# # XXX new exception for this kind of misbehaviour?
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# raise DistutilsArgError, \
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# "invalid install scheme '%s'" % self.install_scheme
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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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# set_final_options ()
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def replace_sys_prefix (self, config_attr, fallback_postfix, use_exec=0):
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"""Attempts to glean a simple pattern from an installation
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directory available as a 'sysconfig' attribute: if the
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directory name starts with the "system prefix" (the one
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hard-coded in the Makefile and compiled into Python),
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then replace it with the current installation prefix and
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return the "relocated" installation directory."""
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if use_exec:
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sys_prefix = sys.exec_prefix
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my_prefix = self.exec_prefix
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else:
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sys_prefix = sys.prefix
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my_prefix = self.prefix
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val = getattr (sysconfig, config_attr)
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if string.find (val, sys_prefix) == 0:
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# If the sysconfig directory starts with the system prefix,
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# then we can "relocate" it to the user-supplied prefix --
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# assuming, of course, it is different from the system prefix.
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if sys_prefix == my_prefix:
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return val
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else:
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return my_prefix + val[len(sys_prefix):]
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else:
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# Otherwise, just tack the "fallback postfix" onto the
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# user-specified prefix.
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return apply (os.join, (my_prefix,) + fallback_postfix)
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# replace_sys_prefix ()
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def run (self):
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self.set_final_options ()
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# Obviously have to build before we can install
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self.run_peer ('build')
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# Install modules in two steps: "platform-shared" files (ie. pure
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# python modules) and platform-specific files (compiled C
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# extensions).
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self.run_peer ('install_py')
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# don't have an 'install_ext' command just yet!
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#self.run_peer ('install_ext'))
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# run ()
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# class Install
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