"""
   Copyright 2015 Creare

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
"""

import subprocess
import platform
import os

cmd_prefix = '"' + os.path.abspath(os.path.join(os.path.split(__file__)[0],
              "./taudem_%s/" % (platform.uname()[0]))) + '/"'

def _run(cmd,):
    ccmd = (cmd_prefix + cmd)
    print "<<  %s   >>" % ccmd
    p = subprocess.Popen(ccmd, stdout=subprocess.PIPE, shell=True)
    for line in p.stdout:
        print line
    p.wait()
    print p.returncode
    if p.returncode:
        raise Exception("Taudem did not complete. Is it installed properly?")
