clean_shipping_bay

#! /bin/bash
# this script should be launched only on external
# The purpose is to clean the "shipping bays" i.e. ../outgoing_external and ../incoming_external
# Files in ../outgoing_external are used by the staging to identify which repo should be fetched
# Files in ../incoming_external are created by the staging to acknowledge that the repo has been fetched
# Basically, if a file is in ../incoming_external, it should be removed from both ../incoming_external
# and ../outgoing_external
# If a file exists only in ../incoming_external, it can be removed (the repo has been fetched anyway)
# If a file exists only in ../outgoing_external, it must be kept.


function usage() {
   echo "Usage : "
   echo "  <command> --dryrun|--run"
}

if [ $# -lt 1 ]
then 
   usage
   exit 0
fi
OPTION=$1
if [ $OPTION != "--dryrun" ] && [ $OPTION != "--run" ] 
then
   usage
   exit 0
fi
if [ $OPTION == "--dryrun" ]
then 
   echo "dryrun only"
   script_mkdir="echo mkdir"
   script_gzip="echo gzip"
   script_mv="echo mv"
   script_touch="echo touch"
   script_rm="echo rm"
else
  # echo "running for real"
   script_mkdir="mkdir"
   script_gzip="/bin/gzip"
   script_mv="mv"
   script_touch="touch"
   script_rm="rm" 
fi
echo "clean_shipping_bay '${OPTION}'"
#exit 0
H="/home/git"
#source "${DIR}/.bashrc" --force > /dev/null
source "${H}/sbin/usrcmd/get_tpl_value"
#homed=${H##*/}
get_tpl_value "${H}/.envs.private" "@LOCAL_BRANCH@" branch_local
get_tpl_value "${H}/.envs.private" "@DOWNSTREAM_BRANCH@" downstream_name
if [[ ${branch_local} != "" || ${downstream_name} != master_bls ]]; then
  # we are for sure not on external
  echo "branch local ${branch_local} downstream_name: ${downstream_name}"
  echo "This script must be launched only on external"
  echo "Exiting ..."
  exit 0
fi
shippingbay="${H}/shippingbay_git"
incoming_bay=${shippingbay}/incoming
outgoing_bay=${shippingbay}/outgoing

day=`date +%d`
month=`date +%m`
year=`date +%Y`
exectime=`date +%H%M%S`
logdir=${H}/log_archive_git/clean_shippingbay_logs
logfile=${logdir}/clean_shippingbay_${year}${month}.log
if [[ ! -d ${logdir}  ]]
then
   eval ${script_mkdir} -p   ${logdir} 
fi
list_incoming=$(cd ${incoming_bay};ls)
for filename in ${list_incoming}
do
  eval ${script_touch} ${logfile}

  if [[ -f ${outgoing_bay}/${filename} ]]
  then
     echo "${year}${month}${day}:${exectime}: removing ${outgoing_bay}/${filename}" >> ${logfile}
     eval $script_rm -f ${outgoing_bay}/${filename}
     if [[ $? == "0" ]]
     then
        echo "${year}${month}${day}:${exectime}: removing ${incoming_bay}/${filename}" >> ${logfile}
        eval $script_rm -f ${incoming_bay}/${filename}
     else
        echo "${year}${month}${day}:${exectime}: error removing ${outgoing_bay}/${filename}" >> ${logfile}
        echo "   => keeping ${incoming_bay}/${filename}" >> ${logfile}
     fi 
  else
  # we remove the file in incoming no matter what as the file cannot be found in  outgoing bay
     echo "${year}${month}${day}:${exectime}: ${filename} not found in ${outgoing_bay}. Removing ${incoming_bay}/${filename}" >> ${logfile}
     eval $script_rm -f ${incoming_bay}/${filename}
  fi
done

exit 0