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#!/usr/bin/env python
from __future__ import print_function
import sys, os
from os.path import dirname, abspath, join as pjoin
import subprocess
import time
# patch PYTHONPATH to include $BASEDIR/build/venv/python/site-packages
BASEDIR = abspath(pjoin(dirname(__file__), os.pardir, os.pardir))
VENVDIR = pjoin(BASEDIR, 'build', 'venv')
sys.path.append(pjoin(VENVDIR, 'lib', 'python', 'site-packages'))
PYVER = sys.version_info[0]
_enc_kwargs = {}
if PYVER >= 3:
_enc_kwargs = {'encoding': 'utf-8'}
# Returns (output :str, success :bool)
def execproc(*args):
p = subprocess.run(
args,
shell=False,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
**_enc_kwargs
)
return (p.stdout.strip(), p.returncode == 0)
def readTextFile(filename):
with open(filename, 'r', **_enc_kwargs) as f:
return f.read()
_gitHash = None
def getGitHash():
global _gitHash
if _gitHash is None:
_gitHash = ''
try:
_gitHash = subprocess.check_output(
['git', '-C', BASEDIR, 'rev-parse', '--short', 'HEAD'],
shell=False,
**_enc_kwargs
).strip()
except:
pass
return _gitHash
_version = None
def getVersion():
global _version
if _version is None:
_version = readTextFile(pjoin(BASEDIR, 'version.txt')).strip()
return _version
_local_tz_offs = None
def getLocalTimeZoneOffset(): # in seconds from UTC
# seriously ugly hack to get timezone offset in Python
global _local_tz_offs
if _local_tz_offs is None:
tzname = time.strftime("%Z", time.localtime())
s = time.strftime('%z', time.strptime(tzname, '%Z'))
i = 0
neg = False
if s[0] == '-':
neg = True
i = 1
elif s[0] == '+':
i = 1
h = int(s[i:i+2])
m = int(s[i+2:])
_local_tz_offs = ((h * 60) + m) * 60
if neg:
_local_tz_offs = -_local_tz_offs
return _local_tz_offs
# update environment to include $VENVDIR/bin
os.environ['PATH'] = os.path.join(VENVDIR, 'bin') + ':' + os.environ['PATH']
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