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