from portage_exec import spawn

from portage_util import writemsg

import errno, os, shutil

def ebuild_clean(mysettings):

	"""This function is called from doebuild to perform the clean phase."""

	chflags = {"BSD":"noschg,nouchg,nosappnd,nouappnd,nosunlnk,nouunlnk",

	"Darwin":"noschg,nouchg,nosappnd,nouappnd"}

	if mysettings["USERLAND"] in chflags:

		spawn(["chflags", "-R", chflags[mysettings["USERLAND"]],

		mysettings["PORTAGE_BUILDDIR"]])

	for subdir in ("image", "distdir"):

		shutil.rmtree(os.path.join(mysettings["PORTAGE_BUILDDIR"], subdir), ignore_errors=True)

	features = mysettings["FEATURES"].split()

	if "keeptemp" in features:

		try:

			os.rename(os.path.join(mysettings["T"], "environment"),

			os.path.join(mysettings["T"], "environment.keeptemp"))

		except OSError, oe:

			if oe.errno == errno.ENOENT:

				pass

			elif oe.errno in (errno.EPERM, errno.EACCES):

				writemsg("%s\n" % oe)

			else:

				raise oe

	else:

		shutil.rmtree(mysettings["T"], ignore_errors=True)

	if "keepwork" not in features:

		for x in (".compiled", ".installed", ".packaged", ".tested", ".unpacked"):

			try:

				os.unlink(os.path.join(mysettings["PORTAGE_BUILDDIR"], x))

			except OSError, oe:

				if oe.errno == errno.ENOENT:

					pass

				elif oe.errno in (errno.EPERM, errno.EACCES):

					writemsg("%s\n" % oe)

				else:

					raise oe

		shutil.rmtree(os.path.join(mysettings["PORTAGE_BUILDDIR"], "build-info"), ignore_errors=True)

		shutil.rmtree(mysettings["WORKDIR"], ignore_errors=True)

	# remove directories only if they are empty, leaving any files intact

	if os.path.isfile(os.path.join(mysettings["PORTAGE_BUILDDIR"], ".unpacked")):

		for dirpath, dirnames, filenames in os.walk(mysettings["PORTAGE_BUILDDIR"], topdown=False):

			for name in dirnames:

				mypath = os.path.join(dirpath, name)

				if not mypath.startswith(mysettings["WORKDIR"]):

					try:

						os.rmdir(mypath)

					except OSError, oe:

						if oe.errno in (errno.ENOTEMPTY, errno.ENOENT):

							pass

						elif oe.errno in (errno.EPERM, errno.EACCES):

							writemsg("%s\n" % oe)

						else:

							raise oe

	try:

		os.rmdir(mysettings["PORTAGE_BUILDDIR"])

	except OSError, oe:

		if oe.errno in (errno.ENOTEMPTY, errno.ENOENT):

			pass

		elif oe.errno in (errno.EPERM, errno.EACCES):

			writemsg("%s\n" % oe)

		else:

			raise oe