# standard imports
import os
import time
import logging

# third-party imports
import semver

version = (
        0,
        12,
        1,
        'alpha.1',
        )

version_object = semver.VersionInfo(
        major=version[0],
        minor=version[1],
        patch=version[2],
        prerelease=version[3],
        )


def git_hash():
    import subprocess
    git_diff = subprocess.run(['git', 'diff'], capture_output=True)
    git_hash = subprocess.run(['git', 'rev-parse', 'HEAD'], capture_output=True)
    git_hash_brief = git_hash.stdout.decode('utf-8')[:8]
    return git_hash_brief

version_string = str(version_object)

try:
    version_git = git_hash()
    version_string += '+build.{}'.format(version_git)
except FileNotFoundError:
    time_string_pair = str(time.time()).split('.')
    version_string += '+build.{}{:<09d}'.format(
            time_string_pair[0],
            int(time_string_pair[1]),
            )

__version_string__ = version_string