# -*- coding: UTF-8 -*-

import sys
import subprocess
from log import *

# run command and return stdout or None in case of error
########################
def run_command(config, task_name, argv, env = None):
  log(LOG_INFO, "Running command '%s' to %s" % (' '.join(argv), task_name))
  try:
    result = subprocess.run(argv, stdout=subprocess.PIPE, env=env)
    if config.verbose:
      log(LOG_INFO, "Command output: %s" % (result.stdout.decode('utf-8')))
    if result.returncode != 0:
      log(LOG_ERROR, "Failed to %s: exit code %d" % (task_name, result.returncode))
      return None
    return result.stdout.decode('utf-8')
  except Exception as e:
    log(LOG_ERROR, "Failed to %s: %s" % (task_name, e))
    return None