113 lines
3.2 KiB
Python
113 lines
3.2 KiB
Python
import os
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class VerificationError(Exception):
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""" An error raised when verification fails
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"""
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class VerificationMissing(Exception):
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""" An error raised when incomplete structures are passed into
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cdef, but no verification has been done
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"""
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def get_extension(srcfilename, modname, sources=(), **kwds):
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from distutils.core import Extension
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allsources = [srcfilename]
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allsources.extend(sources)
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return Extension(name=modname, sources=allsources, **kwds)
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def compile(tmpdir, ext):
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"""Compile a C extension module using distutils."""
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saved_environ = os.environ.copy()
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try:
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outputfilename = _build(tmpdir, ext)
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outputfilename = os.path.abspath(outputfilename)
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finally:
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# workaround for a distutils bugs where some env vars can
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# become longer and longer every time it is used
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for key, value in saved_environ.items():
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if os.environ.get(key) != value:
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os.environ[key] = value
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return outputfilename
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def _build(tmpdir, ext):
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# XXX compact but horrible :-(
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from distutils.core import Distribution
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import distutils.errors
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#
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dist = Distribution({'ext_modules': [ext]})
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dist.parse_config_files()
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options = dist.get_option_dict('build_ext')
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options['force'] = ('ffiplatform', True)
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options['build_lib'] = ('ffiplatform', tmpdir)
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options['build_temp'] = ('ffiplatform', tmpdir)
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#
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try:
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dist.run_command('build_ext')
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except (distutils.errors.CompileError,
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distutils.errors.LinkError) as e:
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raise VerificationError('%s: %s' % (e.__class__.__name__, e))
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#
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cmd_obj = dist.get_command_obj('build_ext')
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[soname] = cmd_obj.get_outputs()
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return soname
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try:
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from os.path import samefile
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except ImportError:
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def samefile(f1, f2):
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return os.path.abspath(f1) == os.path.abspath(f2)
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def maybe_relative_path(path):
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if not os.path.isabs(path):
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return path # already relative
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dir = path
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names = []
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while True:
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prevdir = dir
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dir, name = os.path.split(prevdir)
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if dir == prevdir or not dir:
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return path # failed to make it relative
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names.append(name)
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try:
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if samefile(dir, os.curdir):
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names.reverse()
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return os.path.join(*names)
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except OSError:
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pass
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# ____________________________________________________________
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try:
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int_or_long = (int, long)
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import cStringIO
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except NameError:
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int_or_long = int # Python 3
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import io as cStringIO
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def _flatten(x, f):
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if isinstance(x, str):
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f.write('%ds%s' % (len(x), x))
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elif isinstance(x, dict):
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keys = sorted(x.keys())
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f.write('%dd' % len(keys))
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for key in keys:
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_flatten(key, f)
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_flatten(x[key], f)
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elif isinstance(x, (list, tuple)):
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f.write('%dl' % len(x))
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for value in x:
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_flatten(value, f)
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elif isinstance(x, int_or_long):
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f.write('%di' % (x,))
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else:
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raise TypeError(
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"the keywords to verify() contains unsupported object %r" % (x,))
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def flatten(x):
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f = cStringIO.StringIO()
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_flatten(x, f)
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return f.getvalue()
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