get version number

gitversion.py

#!/usr/bin/env python

from subprocess import Popen, PIPE
import re
import string
import datetime
import time


def get_version():
    p1 = Popen('git branch', stdout=PIPE, shell=True)
    p2 = Popen('grep -e ^*', stdin=p1.stdout, stdout=PIPE, shell=True)
    p1.stdout.close()
    branch_name = p2.communicate()[0]
    if string.lower(branch_name).strip() == '* integration':
        return "snapshot-{0}".format(int(time.mktime(datetime.datetime.now().timetuple())))
    m = re.match('^.*(RELEASE-)(.*)', branch_name)
    if m is not None:
        p1 = Popen('git log {0}{1} --not integration --oneline'.format(m.group(1), m.group(2)), stdout=PIPE, shell=True)
        p2 = Popen('wc -l', stdin=p1.stdout, stdout=PIPE, shell=True)
        p1.stdout.close()
        beta_version = "-{0}".format(p2.communicate()[0].strip())
        if beta_version == '-0':
            beta_version = ''
        return "{0}-beta{1}".format(string.replace(m.group(2), '-', '.'), beta_version)

    p = Popen('git log --oneline -n 5', stdout=PIPE, shell=True)
    output = p.communicate()[0]
    for i in output.split('\n'):
        m = re.match("^.*RELEASE-(.*)-SIGNOFF-.*$", i)
        if m is None:
            continue
        return string.replace(m.group(1), "-", ".")

print get_version()