mirror of https://github.com/python/cpython.git
114 lines
4.0 KiB
Python
114 lines
4.0 KiB
Python
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"""distutils.command.build_py
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Implements the Distutils 'build_py' command."""
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# created 1999/03/08, Greg Ward
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__rcsid__ = "$Id$"
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import string, os
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from distutils.core import Command
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from distutils.errors import *
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from distutils.util import mkpath, newer, make_file, copy_file
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class BuildPy (Command):
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options = [('dir=', 'd', "directory for platform-shared files"),
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('compile', 'c', "compile .py to .pyc"),
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('optimize', 'o', "compile .py to .pyo (optimized)"),
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]
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def set_default_options (self):
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self.dir = None
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self.compile = 1
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self.optimize = 1
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def set_final_options (self):
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self.set_undefined_options ('build',
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('libdir', 'dir'),
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('compile_py', 'compile'),
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('optimize_py', 'optimize'))
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def run (self):
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# XXX copy_file by default preserves all stat info -- mode, atime,
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# and mtime. IMHO this is the right thing to do, but perhaps it
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# should be an option -- in particular, a site administrator might
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# want installed files to reflect the time of installation rather
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# than the last modification time before the installed release.
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# XXX copy_file does *not* preserve MacOS-specific file metadata.
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# If this is a problem for building/installing Python modules, then
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# we'll have to fix copy_file. (And what about installing scripts,
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# when the time comes for that -- does MacOS use its special
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# metadata to know that a file is meant to be interpreted by
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# Python?)
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self.set_final_options ()
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(modules, package) = \
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self.distribution.get_options ('py_modules', 'package')
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package = package or ''
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infiles = []
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outfiles = []
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missing = []
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# Loop over the list of "pure Python" modules, deriving
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# input and output filenames and checking for missing
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# input files.
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# XXX we should allow for wildcards, so eg. the Distutils setup.py
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# file would just have to say
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# py_modules = ['distutils.*', 'distutils.command.*']
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# without having to list each one explicitly.
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for m in modules:
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fn = apply (os.path.join, tuple (string.split (m, '.'))) + '.py'
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if not os.path.exists (fn):
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missing.append (fn)
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else:
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infiles.append (fn)
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outfiles.append (os.path.join (self.dir, package, fn))
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# Blow up if any input files were not found.
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if missing:
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raise DistutilsFileError, \
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"missing files: " + string.join (missing, ' ')
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# Loop over the list of input files, copying them to their
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# temporary (build) destination.
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created = {}
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for i in range (len (infiles)):
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outdir = os.path.split (outfiles[i])[0]
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if not created.get(outdir):
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mkpath (outdir, verbose=self.distribution.verbose)
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created[outdir] = 1
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copy_file (infiles[i], outfiles[i],
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update=1, verbose=self.distribution.verbose)
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# (Optionally) compile .py to .pyc
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# XXX hey! we can't control whether we optimize or not; that's up
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# to the invocation of the current Python interpreter (at least
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# according to the py_compile docs). That sucks.
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if self.compile:
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from py_compile import compile
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for f in outfiles:
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# XXX can't assume this filename mapping!
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out_fn = string.replace (f, '.py', '.pyc')
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make_file (f, out_fn, compile, (f,),
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verbose=self.distribution.verbose,
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update_message="compiling %s" % f)
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# XXX ignore self.optimize for now, since we don't really know if
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# we're compiling optimally or not, and couldn't pick what to do
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# even if we did know. ;-(
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# end class BuildPy
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