import subprocess
 import os
 
 class CommandUtils(object):
     def __init__(self):

         self.findBinary = "find"

     def findFile(self, filename, sourcePath):
         process = subprocess.Popen([self.findBinary, "-L", sourcePath, "-name", filename,
                                     "-not", "-type", "d"], stdout=subprocess.PIPE)
         # We don't check the return val here because find could return 1 but still be
         # able to find

         # the result. We shouldn't blindly return None without even checking the result.
         # The reason we want to suppress this is because for built RPMs, we first copy it to
         # the location with a random name and move it to the real name. find will complain our
         # action and return 1.
         # find's flag ignore_readdir_race can suppress this but it isn't working.
         # https://bugs.centos.org/view.php?id=13685
 
         #if returnVal != 0:
         #    return None

         result = process.communicate()[0]

         if result is None:
             return None

         return result.decode().split()

     @staticmethod
     def runCommandInShell(cmd, logfilePath=None, chrootCmd=None):

         if chrootCmd is not None:

             cmd = chrootCmd + " " + cmd

         if logfilePath is None:

             logfilePath = os.devnull
         logfile = open(logfilePath, "w")
         process = subprocess.Popen("%s" %cmd, shell=True, stdout=logfile, stderr=logfile)

         retval = process.wait()
         logfile.close()

         if retval == 0:

             return True
         return False

     @staticmethod
     def runCommandInShell2(cmd, chrootCmd=None):

         if chrootCmd is not None:

             cmd = chrootCmd + " " + cmd
         process = subprocess.Popen("%s" %cmd, shell=True, stdout=subprocess.PIPE)

         retval = process.wait()

         if retval != 0:
             return None

         return process.communicate()[0]