diff options
Diffstat (limited to 'Lib/distutils/command/install.py')
| -rw-r--r-- | Lib/distutils/command/install.py | 111 |
1 files changed, 39 insertions, 72 deletions
diff --git a/Lib/distutils/command/install.py b/Lib/distutils/command/install.py index 00aa072..ed74971 100644 --- a/Lib/distutils/command/install.py +++ b/Lib/distutils/command/install.py @@ -79,34 +79,38 @@ class install (Command): #('install-man=', None, "directory for Unix man pages"), #('install-html=', None, "directory for HTML documentation"), #('install-info=', None, "directory for GNU info files"), - - # Flags for 'build_py' - #('compile-py', None, "compile .py to .pyc"), - #('optimize-py', None, "compile .py to .pyo (optimized)"), ] def initialize_options (self): - # Don't define 'prefix' or 'exec_prefix' so we can know when the - # command is run whether the user supplied values + # 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 - # 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_purelib = None - self.install_platlib = None - self.install_lib = 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 @@ -119,79 +123,36 @@ class install (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 - self.compile_py = 1 - self.optimize_py = 1 - def finalize_options (self): - # XXX this method is where the default installation directories - # for modules and extension modules are determined. (Someday, - # the default installation directories for scripts, - # documentation, and whatever else the Distutils can build and - # install will also be determined here.) Thus, this is a pretty - # important place to fiddle with for anyone interested in - # installation schemes for the Python library. Issues that - # are not yet resolved to my satisfaction: - # * how much platform dependence should be here, and - # how much can be pushed off to sysconfig (or, better, the - # Makefiles parsed by sysconfig)? - # * how independent of Python version should this be -- ie. - # should we have special cases to handle Python 1.5 and - # older, and then do it "the right way" for 1.6? Or should - # we install a site.py along with Distutils under pre-1.6 - # Python to take care of the current deficiencies in - # Python's library installation scheme? - # - # Currently, this method has hacks to distinguish POSIX from - # non-POSIX systems (for installation of site-local modules), - # and assumes the Python 1.5 installation tree with no site.py - # to fix things. - - # Figure out actual installation directories; the basic principle - # is: ... - - - - # Logic: - # * any: (prefix or exec-prefix or home) and (base or platbase) - # supplied: error - # * Windows/Mac OS: exec-prefix or home supplied: warn and ignore - # - # * Unix: home set - # (select the unix_home scheme) - # * Unix: neither prefix nor home set - # (set prefix=sys_prefix and carry on) - # * Unix: prefix set but not exec-prefix - # (set exec-prefix=prefix and carry on) - # * Unix: prefix set - # (select the unix_prefix scheme) - # - # * Windows/Mac OS: prefix not set - # (set prefix = sys_prefix and carry on) - # * Windows/Mac OS: prefix set - # (select the appropriate scheme) + # 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. - # "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. + # Check for errors/inconsistencies in the options; first, stuff + # that's wrong on any platform. - sys_prefix = os.path.normpath (sys.prefix) - sys_exec_prefix = os.path.normpath (sys.exec_prefix) - - # Check for errors/inconsistencies in the options 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, \ @@ -240,7 +201,7 @@ class install (Command): self.install_libbase = self.install_lib # needed for .pth file self.install_lib = os.path.join (self.install_lib, self.extra_dirs) - # Figure out the build directories, ie. where to install from + # Find out the build directories, ie. where to install from. self.set_undefined_options ('build', ('build_base', 'build_base'), ('build_lib', 'build_lib')) @@ -320,6 +281,12 @@ class install (Command): 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] |