How to use the portage.os.path.basename function in portage

		@returns: boolean
		'''
		try:
			myf = repoman_popen(
				"bzr ls -v --kind=file " +
				portage._shell_quote(checkdir))
			myl = myf.readlines()
			myf.close()
		except IOError:
			raise
		for l in myl:
			if l[1:2] == "?":
				continue
			l = l.split()[-1]
			if l[-7:] == ".ebuild":
				self.eadded.append(os.path.basename(l[:-7]))
		return True

EAPI metadata.
	The myroot and use_cache parameters are unused.
	"""

	if settings is None:
		raise TypeError("settings argument is required")

	if db is None:
		raise TypeError("db argument is required")

	mysettings = settings
	mydbapi = db
	ebuild_path = os.path.abspath(myebuild)
	pkg_dir     = os.path.dirname(ebuild_path)
	mytree = os.path.dirname(os.path.dirname(pkg_dir))
	mypv = os.path.basename(ebuild_path)[:-7]
	mysplit = _pkgsplit(mypv, eapi=mysettings.configdict["pkg"].get("EAPI"))
	if mysplit is None:
		raise IncorrectParameter(
			_("Invalid ebuild path: '%s'") % myebuild)

	if mysettings.mycpv is not None and \
		mysettings.configdict["pkg"].get("PF") == mypv and \
		"CATEGORY" in mysettings.configdict["pkg"]:
		# Assume that PF is enough to assume that we've got
		# the correct CATEGORY, though this is not really
		# a solid assumption since it's possible (though
		# unlikely) that two packages in different
		# categories have the same PF. Callers should call
		# setcpv or create a clean clone of a locked config
		# instance in order to ensure that this assumption
		# does not fail like in bug #408817.

vartree = portage.db[myroot]["vartree"]
	if mytbz2[-5:]!=".tbz2":
		print(_("!!! Not a .tbz2 file"))
		return 1

	tbz2_lock = None
	mycat = None
	mypkg = None
	did_merge_phase = False
	success = False
	try:
		""" Don't lock the tbz2 file because the filesytem could be readonly or
		shared by a cluster."""
		#tbz2_lock = portage.locks.lockfile(mytbz2, wantnewlockfile=1)

		mypkg = os.path.basename(mytbz2)[:-5]
		xptbz2 = portage.xpak.tbz2(mytbz2)
		mycat = xptbz2.getfile(_unicode_encode("CATEGORY",
			encoding=_encodings['repo.content']))
		if not mycat:
			writemsg(_("!!! CATEGORY info missing from info chunk, aborting...\n"),
				noiselevel=-1)
			return 1
		mycat = _unicode_decode(mycat,
			encoding=_encodings['repo.content'], errors='replace')
		mycat = mycat.strip()

		# These are the same directories that would be used at build time.
		builddir = os.path.join(
			mysettings["PORTAGE_TMPDIR"], "portage", mycat, mypkg)
		catdir = os.path.dirname(builddir)
		pkgloc = os.path.join(builddir, "image")

eapi = read_corresponding_eapi_file(file_name,
				default=eapi_default)
		extended_syntax = eapi is None and user_config
		if extended_syntax:
			ret = ExtendedAtomDict(dict)
		else:
			ret = {}
		file_dict = grabdict_package(file_name, recursive=recursive,
			allow_wildcard=extended_syntax, allow_repo=extended_syntax,
			verify_eapi=(not extended_syntax), eapi=eapi,
			eapi_default=eapi_default, allow_build_id=allow_build_id,
			allow_use=False)
		if eapi is not None and eapi_filter is not None and not eapi_filter(eapi):
			if file_dict:
				writemsg(_("--- EAPI '%s' does not support '%s': '%s'\n") %
					(eapi, os.path.basename(file_name), file_name),
					noiselevel=-1)
			return ret
		useflag_re = _get_useflag_re(eapi)
		for k, v in file_dict.items():
			useflags = []
			use_expand_prefix = ''
			for prefixed_useflag in v:
				if extended_syntax and prefixed_useflag == "\n":
					use_expand_prefix = ""
					continue
				if extended_syntax and prefixed_useflag[-1] == ":":
					use_expand_prefix = prefixed_useflag[:-1].lower() + "_"
					continue

				if prefixed_useflag[:1] == "-":
					useflag = use_expand_prefix + prefixed_useflag[1:]

		@type eapi: str
		@param eapi_default: the default EAPI which applies if the
			current profile node does not define a local EAPI
		@type eapi_default: str
		@rtype: tuple
		@return: collection of USE flags
		"""
		ret = []
		lines = grabfile(file_name, recursive=recursive)
		if eapi is None:
			eapi = read_corresponding_eapi_file(
				file_name, default=eapi_default)
		if eapi_filter is not None and not eapi_filter(eapi):
			if lines:
				writemsg(_("--- EAPI '%s' does not support '%s': '%s'\n") %
					(eapi, os.path.basename(file_name), file_name),
					noiselevel=-1)
			return ()
		useflag_re = _get_useflag_re(eapi)
		for prefixed_useflag in lines:
			if prefixed_useflag[:1] == "-":
				useflag = prefixed_useflag[1:]
			else:
				useflag = prefixed_useflag
			if useflag_re.match(useflag) is None:
				writemsg(_("--- Invalid USE flag in '%s': '%s'\n") %
					(file_name, prefixed_useflag), noiselevel=-1)
			else:
				ret.append(prefixed_useflag)
		return tuple(ret)

return (False, None)
	if size is not None and size != st.st_size:
		return (False, st)
	if not digests:
		if size is not None:
			eout.ebegin(_("%s size ;-)") % os.path.basename(filename))
			eout.eend(0)
		elif st.st_size == 0:
			# Zero-byte distfiles are always invalid.
			return (False, st)
	else:
		digests = _filter_unaccelarated_hashes(digests)
		if hash_filter is not None:
			digests = _apply_hash_filter(digests, hash_filter)
		if _check_digests(filename, digests, show_errors=show_errors):
			eout.ebegin("%s %s ;-)" % (os.path.basename(filename),
				" ".join(sorted(digests))))
			eout.eend(0)
		else:
			return (False, st)
	return (True, st)

def check(self, checkdir, checkdir_relative, xpkg):
		'''Perform the git status check

		@param checkdir: string of the directory being checked
		@param checkdir_relative: string of the relative directory being checked
		@param xpkg: string of the package being checked
		@returns: boolean
		'''
		with repoman_popen(
			"git ls-files --others %s" %
			(portage._shell_quote(checkdir_relative),)) as myf:
			for l in myf:
				if l[:-1][-7:] == ".ebuild":
					self.qatracker.add_error(
						"ebuild.notadded",
						os.path.join(xpkg, os.path.basename(l[:-1])))
		return True

pkgindex = self._load_pkgindex()
			if not self._pkgindex_version_supported(pkgindex):
				pkgindex = self._new_pkgindex()
			metadata = {}
			basename_index = {}
			for d in pkgindex.packages:
				cpv = _pkg_str(d["CPV"], metadata=d,
					settings=self.settings, db=self.dbapi)
				d["CPV"] = cpv
				metadata[_instance_key(cpv)] = d
				path = d.get("PATH")
				if not path:
					path = cpv + ".tbz2"

				if reindex:
					basename = os.path.basename(path)
					basename_index.setdefault(basename, []).append(d)
				else:
					instance_key = _instance_key(cpv)
					pkg_paths[instance_key] = path
					self.dbapi.cpv_inject(cpv)

			update_pkgindex = False
			for mydir, file_names in dir_files.items():
				try:
					mydir = _unicode_decode(mydir,
						encoding=_encodings["fs"], errors="strict")
				except UnicodeDecodeError:
					continue
				for myfile in file_names:
					try:
						myfile = _unicode_decode(myfile,

def _display_success(self):
		stdout_orig = sys.stdout
		stderr_orig = sys.stderr
		global_havecolor = portage.output.havecolor
		out = io.StringIO()
		try:
			sys.stdout = out
			sys.stderr = out
			if portage.output.havecolor:
				portage.output.havecolor = not self.background

			path = self._pkg_path
			if path.endswith(".partial"):
				path = path[:-len(".partial")]
			eout = EOutput()
			eout.ebegin("%s %s ;-)" % (os.path.basename(path),
				" ".join(sorted(self._digests))))
			eout.eend(0)

		finally:
			sys.stdout = stdout_orig
			sys.stderr = stderr_orig
			portage.output.havecolor = global_havecolor

		self.scheduler.output(out.getvalue(), log_path=self.logfile,
			background=self.background)

nosandbox = True

	sesandbox = settings.selinux_enabled() and \
		"sesandbox" in features

	droppriv = "userpriv" in features and \
		"userpriv" not in restrict and \
		secpass >= 2

	fakeroot = "fakeroot" in features

	portage_bin_path = settings["PORTAGE_BIN_PATH"]
	ebuild_sh_binary = os.path.join(portage_bin_path,
		os.path.basename(EBUILD_SH_BINARY))
	misc_sh_binary = os.path.join(portage_bin_path,
		os.path.basename(MISC_SH_BINARY))
	ebuild_sh = _shell_quote(ebuild_sh_binary) + " %s"
	misc_sh = _shell_quote(misc_sh_binary) + " __dyn_%s"

	# args are for the to spawn function
	actionmap = {
"pretend":  {"cmd":ebuild_sh, "args":{"droppriv":0,        "free":1,         "sesandbox":0,         "fakeroot":0}},
"setup":    {"cmd":ebuild_sh, "args":{"droppriv":0,        "free":1,         "sesandbox":0,         "fakeroot":0}},
"unpack":   {"cmd":ebuild_sh, "args":{"droppriv":droppriv, "free":0,         "sesandbox":sesandbox, "fakeroot":0}},
"prepare":  {"cmd":ebuild_sh, "args":{"droppriv":droppriv, "free":0,         "sesandbox":sesandbox, "fakeroot":0}},
"configure":{"cmd":ebuild_sh, "args":{"droppriv":droppriv, "free":nosandbox, "sesandbox":sesandbox, "fakeroot":0}},
"compile":  {"cmd":ebuild_sh, "args":{"droppriv":droppriv, "free":nosandbox, "sesandbox":sesandbox, "fakeroot":0}},
"test":     {"cmd":ebuild_sh, "args":{"droppriv":droppriv, "free":nosandbox, "sesandbox":sesandbox, "fakeroot":0}},
"install":  {"cmd":ebuild_sh, "args":{"droppriv":0,        "free":0,         "sesandbox":sesandbox, "fakeroot":fakeroot}},
"instprep": {"cmd":misc_sh,   "args":{"droppriv":0,        "free":0,         "sesandbox":sesandbox, "fakeroot":fakeroot}},
"rpm":      {"cmd":misc_sh,   "args":{"droppriv":0,        "free":0,         "sesandbox":0,         "fakeroot":fakeroot}},
"package":  {"cmd":misc_sh,   "args":{"droppriv":0,        "free":0,         "sesandbox":0,         "fakeroot":fakeroot}},