class CmdBaseDirectory(Command):

	"""Display the path to a given package's base directory in the portage tree,

	   that would be used by Portage with the current configuration."""

	def __init__(self):

		self.default_opts = { }

	def parseArgs(self, args):

		query = ""

		need_help = 0

		opts = self.default_opts

		skip = 0

		for i in xrange(len(args)):

			if skip:

				skip -= 1

				continue

			x = args[i]

			if x in ["-h","--help"]:

				need_help = 1

				break

			else:

				query = x

		if need_help or query == "":

			print_info(0, self.longHelp())

			sys.exit(-1)

		return (query, opts)

	def perform(self, args):

		(query, opts) = self.parseArgs(args)

		matches = gentoolkit.find_packages(query, True)

		if matches:

			non_overlay_found = False

			for pkg in matches:

				if not pkg.is_overlay():

					print_info(0, os.path.normpath(pkg.get_package_path()))

					non_overlay_found = True

					break

			if not non_overlay_found:

				# Package is only in an overlay.  Print the path of one of them

				print_info(0, os.path.normpath(matches[0].get_package_path()))

		else:

			print_error("No masked or unmasked packages found for " + pp.pkgquery(query))

	def shortHelp(self):

		return pp.pkgquery("pkgspec") + " - print path to portage tree base directory for package " + pp.pkgquery("pkgspec")

	def longHelp(self):

		return "Print full path to a given package's base directory in the portage tree" + \

			"\n" + \

			"Syntax:\n" + \

			"  " + pp.command("basedir ") + pp.pkgquery("pkgspec")