# coding: utf-8
#
# Copyright © 2012-2015 Ejwa Software. All rights reserved.
#
# This file is part of gitinspector.
#
# gitinspector is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# gitinspector is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with gitinspector. If not, see <http://www.gnu.org/licenses/>.

import os
import subprocess
import sys

def get_basedir():
	if hasattr(sys,'frozen'): # exists when running via py2exe
		return sys.prefix
	else:
		return os.path.dirname(os.path.realpath(__file__))

__git_basedir__ = None

def get_basedir_git():
	global __git_basedir__

	if not __git_basedir__:
		sp = subprocess.Popen(["git", "rev-parse", "--is-bare-repository"], bufsize=1,
		                          stdout=subprocess.PIPE, stderr=open(os.devnull, "w"))
		isbare = sp.stdout.readlines()
		sp.wait()
		if sp.returncode != 0:
			sys.exit(_("Error processing git repository at \"%s\"." % os.getcwd()))
		isbare = (isbare[0].decode("utf-8", "replace").strip() == "true")
		absolute_path = None

		if isbare:
			absolute_path = subprocess.Popen(["git", "rev-parse", "--git-dir"], bufsize=1, stdout=subprocess.PIPE).stdout
		else:
			absolute_path = subprocess.Popen(["git", "rev-parse", "--show-toplevel"], bufsize=1,
			                                 stdout=subprocess.PIPE).stdout

		absolute_path = absolute_path.readlines()
		if len(absolute_path) == 0:
			sys.exit(_("Unable to determine absolute path of git repository."))

		__git_basedir__ = absolute_path[0].decode("utf-8", "replace").strip()

	return __git_basedir__