"""distutils.command.install Implements the Distutils 'install' command.""" # created 1999/03/13, Greg Ward __rcsid__ = "$Id$" import sys, os, string from distutils import sysconfig from distutils.core import Command class Install (Command): options = [('prefix=', None, "installation prefix"), ('execprefix=', None, "prefix for platform-specific files"), # Build directories: where to install from ('build-base=', None, "base build directory"), ('build-lib=', None, "build directory for non-platform-specific library files"), ('build-platlib=', None, "build directory for platform-specific library files"), # Installation directories: where to put modules and packages ('install-lib=', None, "base Python library directory"), ('install-platlib=', None, "platform-specific Python library directory"), ('install-site-lib=', None, "directory for site-specific packages and modules"), ('install-site-platlib=', None, "platform-specific site directory"), ('install-scheme=', None, "install to 'system' or 'site' library directory?"), # Where to install documentation (eventually!) ('doc-format=', None, "format of documentation to generate"), ('install-man=', None, "directory for Unix man pages"), ('install-html=', None, "directory for HTML documentation"), ('install-info=', None, "directory for GNU info files"), ] def set_default_options (self): self.build_base = None self.build_lib = None self.build_platlib = None # Don't define 'prefix' or 'exec_prefix' so we can know when the # command is run whether the user supplied values self.prefix = None self.exec_prefix = None # These two, we can supply real values for! (because they're # not directories, and don't have a confusing multitude of # possible derivations) #self.install_scheme = 'site' self.doc_format = None # The actual installation directories are determined only at # run-time, so the user can supply just prefix (and exec_prefix?) # as a base for everything else self.install_lib = None self.install_platlib = None self.install_site_lib = None self.install_site_platlib = None self.install_man = None self.install_html = None self.install_info = None def set_final_options (self): # Figure out the build directories, ie. where to install from self.set_peer_option ('build', 'basedir', self.build_base) self.set_undefined_options ('build', ('basedir', 'build_base'), ('libdir', 'build_lib'), ('platdir', 'build_platlib')) # Figure out actual installation directories; the basic principle # is: if the user supplied nothing, then use the directories that # Python was built and installed with (ie. the compiled-in prefix # and exec_prefix, and the actual installation directories gleaned # by sysconfig). If the user supplied a prefix (and possibly # exec_prefix), then we generate our own installation directories, # following any pattern gleaned from sysconfig's findings. If no # such pattern can be gleaned, then we'll just make do and try to # ape the behaviour of Python's configure script. if self.prefix is None: # user didn't override self.prefix = sys.prefix if self.exec_prefix is None: self.exec_prefix = sys.exec_prefix if self.install_lib is None: self.install_lib = \ self.replace_sys_prefix ('LIBDEST', ('lib','python1.5')) if self.install_platlib is None: # XXX this should probably be DESTSHARED -- but why is there no # equivalent to DESTSHARED for the "site-packages" dir"? self.install_platlib = \ self.replace_sys_prefix ('BINLIBDEST', ('lib','python1.5'), 1) if self.install_site_lib is None: self.install_site_lib = \ os.path.join (self.install_lib, 'site-packages') if self.install_site_platlib is None: # XXX ugh! this puts platform-specific files in with shared files, # with no nice way to override it! (this might be a Python # problem, though, not a Distutils problem...) self.install_site_platlib = \ os.path.join (self.install_lib, 'site-packages') #if self.install_scheme == 'site': # install_lib = self.install_site_lib # install_platlib = self.install_site_platlib #elif self.install_scheme == 'system': # install_lib = self.install_lib # install_platlib = self.install_platlib #else: # # XXX new exception for this kind of misbehaviour? # raise DistutilsArgError, \ # "invalid install scheme '%s'" % self.install_scheme # Punt on doc directories for now -- after all, we're punting on # documentation completely! # set_final_options () def replace_sys_prefix (self, config_attr, fallback_postfix, use_exec=0): """Attempts to glean a simple pattern from an installation directory available as a 'sysconfig' attribute: if the directory name starts with the "system prefix" (the one hard-coded in the Makefile and compiled into Python), then replace it with the current installation prefix and return the "relocated" installation directory.""" if use_exec: sys_prefix = sys.exec_prefix my_prefix = self.exec_prefix else: sys_prefix = sys.prefix my_prefix = self.prefix val = getattr (sysconfig, config_attr) if string.find (val, sys_prefix) == 0: # If the sysconfig directory starts with the system prefix, # then we can "relocate" it to the user-supplied prefix -- # assuming, of course, it is different from the system prefix. if sys_prefix == my_prefix: return val else: return my_prefix + val[len(sys_prefix):] else: # Otherwise, just tack the "fallback postfix" onto the # user-specified prefix. return apply (os.join, (my_prefix,) + fallback_postfix) # replace_sys_prefix () def run (self): self.set_final_options () # Install modules in two steps: "platform-shared" files (ie. pure # python modules) and platform-specific files (compiled C # extensions). self.run_peer ('install_py') # don't have an 'install_ext' command just yet! #self.run_peer ('install_ext')) # run () # class Install