#!/bin/bash

script_dir=`dirname $0`

python_cmd="python"

[ -z "$CMSSW_VERSION" ] && echo "CMSSW is missing. You must do cmsenv first" && exit

CMSSW_Major=$(echo $CMSSW_VERSION | cut -d_ -f2) # e.g. from CMSSW_13_1_x this is "13"

CMSSW_Serie=$(echo $CMSSW_VERSION | cut -d_ -f3) # e.g. from CMSSW_10_6_x this is "6"

# CRABClient can use python3 starting from CMSSW_10_2

[ $CMSSW_Major -gt 10 ] && python_cmd="python3"

[ $CMSSW_Major -eq 10 ] && [ $CMSSW_Serie -ge 2 ] && python_cmd="python3"

# but for crab submit, need to stick with same python as cmsRun, to allow

# proper processing of config files and proper PSet.pkl

[ $CMSSW_Major -lt 12 ] && [ X$1 == Xsubmit ] && python_cmd="python"

if [ $python_cmd = "python3" ] ; then

# can also include Rucio client (we do not want to deal with old python2 client)

RUCIO_ENV=`${script_dir}/rucio_env.sh`

export RUCIO_HOME=`echo $RUCIO_ENV|cut -d' ' -f1`

RUCIO_PYTHONPATH=`echo $RUCIO_ENV|cut -d' ' -f2`

# alter PYTHONPATH here to keep flexibility to add or append as we find better

export PYTHONPATH=$RUCIO_PYTHONPATH:$PYTHONPATH

fi

# avoid pythonpath contamination by user .local files

export PYTHONNOUSERSITE=true

# finally run crab client

exec ${python_cmd} ${script_dir}/crab.py ${1+"$@"}