test_ok1/py/misc/dynpkg.py

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"""
"""
import py
import sys
log = py.log.get("dynpkg",
info=py.log.STDOUT,
debug=py.log.STDOUT,
command=None) # py.log.STDOUT)
from distutils import util
class DistPython:
def __init__(self, location=None, python=None):
if python is None:
python = py.std.sys.executable
self.python = python
if location is None:
location = py.path.local()
self.location = location
self.plat_specifier = '.%s-%s' % (util.get_platform(), sys.version[0:3])
def clean(self):
out = self._exec("clean -a")
#print out
def build(self):
out = self._exec("build")
#print out
def _exec(self, cmd):
python = self.python
old = self.location.chdir()
try:
cmd = "%(python)s setup.py %(cmd)s" % locals()
log.command(cmd)
out = py.process.cmdexec(cmd)
finally:
old.chdir()
return out
def get_package_path(self, pkgname):
pkg = self._get_package_path(pkgname)
if pkg is None:
#self.clean()
self.build()
pkg = self._get_package_path(pkgname)
assert pkg is not None
return pkg
def _get_package_path(self, pkgname):
major, minor = py.std.sys.version_info[:2]
#assert major >=2 and minor in (3,4,5)
suffix = "%s.%s" %(major, minor)
location = self.location
for base in [location.join('build', 'lib'),
location.join('build', 'lib'+ self.plat_specifier)]:
if base.check(dir=1):
for pkg in base.visit(lambda x: x.check(dir=1)):
if pkg.basename == pkgname:
#
if pkg.dirpath().basename == 'lib'+ self.plat_specifier or \
pkg.dirpath().basename == 'lib':
return pkg
def setpkg(finalpkgname, distdir):
assert distdir.check(dir=1)
dist = DistPython(distdir)
pkg = dist.get_package_path(finalpkgname)
assert pkg.check(dir=1)
sys.path.insert(0, str(pkg.dirpath()))
try:
modname = pkg.purebasename
if modname in sys.modules:
log.debug("removing from sys.modules:", modname)
del sys.modules[modname]
sys.modules[modname] = mod = __import__(modname)
finally:
sys.path[0] # XXX
log.info("module is at", mod.__file__)
return mod