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# Copyright 2015  Lars Wirzenius
#
# This program 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.
#
# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
#
# =*= License: GPL-3+ =*=


import os

import cliapp


class GitClone(object):

    def __init__(self):
        self.dirname = None
        self.subdir = None
        self.url = None

    def set_dirname(self, dirname):
        self.dirname = dirname

    def set_subdir(self, subdir):
        self.subdir = subdir

    def set_url(self, url):
        self.url = url

    def clone_from_url(self):
        cliapp.runcmd(['git', 'clone', self.url, self.dirname])

    def update_from_url(self):
        cliapp.runcmd(['git', 'remote', 'update'], cwd=self.dirname)

    def sync_from_url(self):
        if os.path.exists(self.dirname):
            self.update_from_url()
        else:
            self.clone_from_url()

    def checkout(self, branch):
        cliapp.runcmd(['git', 'checkout', branch], cwd=self.dirname)
        cliapp.runcmd(['git', 'pull', 'origin', branch], cwd=self.dirname)

    def get_HEAD_commit(self):
        output = cliapp.runcmd(['git', 'rev-parse', 'HEAD'], cwd=self.dirname)
        return output.strip()