# Patchwork - automated patch tracking system

# Copyright (C) 2016 Stephen Finucane <stephen@that.guru>

#

# This file is part of the Patchwork package.

#

# Patchwork 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 2 of the License, or

# (at your option) any later version.

#

# Patchwork 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 Patchwork; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

import subprocess

import os

ROOT_DIR = os.path.join(os.path.dirname(os.path.abspath(__file__)),

os.pardir)

def get_latest_version(version):

"""Returns the most recent version available.

This is either the hard-coded version or, if using Git, the version

per the most recent Git tag.

"""

git_version = format_git_version(get_raw_git_version())

str_version = format_version(version)

return git_version or str_version

def format_version(version):

"""Format version tuple."""

return '.'.join(['.'.join([str(x) for x in version[:3]]),

'-'.join([str(x) for x in version[3:]])])

def format_git_version(version):

"""Returns a version based on Git tags."""

if '-' in version: # after tag

# convert version-N-githash to version.postN-githash

return version.replace('-', '.post', 1)

else: # at tag

return version

def get_raw_git_version():

"""Returns the raw git version via 'git-describe'."""

try:

git_version = subprocess.check_output(['git', 'describe'],

stderr=subprocess.STDOUT,

cwd=ROOT_DIR)

except (OSError, subprocess.CalledProcessError):

return ''

return git_version.strip().decode('utf-8')