CMS: generator parameters

[katilp]

Adding the missing generator parameters (typically dataset with the LHE step).
Different cases

MINIAODSIM has mcdb_id > 1 in McM

• used before gridpack was adopted
• find generator parameters (LHE header) in /eos/cms/store/lhe/$mcdb_id
  extract file and read the header with

  xz -d -c /eos/cms/store/lhe/$mcdb_id/* > lhe.lhe
    awk '/<header>/,/<\/header>/' lhe.lhe > lhe_header
  

GEN-SIM has no parent dataset

• the config file should contain a *GeneratorFilter module, then that's all that is needed

GEN-SIM has a parent dataset

• no mcdb_id

• get the generator parameters from the gridpack

  edmProvDump -f "externalLHEProducer LHE" root://eospublic.cern.ch/$file | grep gridpacks > line
  gp=$(sed "s/'/ /g" line | awk '{print $6}')
  if [[ $file == *"madgraph"* ]]; then
        tar -xf $gp ./process/madevent/Cards/run_card.dat
        tar -xf $gp ./process/madevent/Cards/proc_card*.dat
        tar -xf $gp ./process/madevent/Cards/param_card.dat
        mv ./process/madevent/Cards/*.dat $dir/
   elif [[ $file == *"powheg"* ]]; then
        tar -xf $gp *.input
        mv *.input $dir
   elif [[ $file == *"amcatnlo"* ]]; then
        tar -xf $gp process/Cards/run_card.dat
        tar -xf $gp process/Cards/proc_card*.dat
        tar -xf $gp process/Cards/param_card.dat
        mv process/Cards/*.dat $dir/
  fi
  

[katilp]

Closing, combined with #97