First checkin of real Distutils command modules.

Lib/distutils/command/install.py

@@ -0,0 +1,189 @@
+"""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