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#!/bin/bash
## =============================================================================
## Generic utility script to parse command line arguments for the various
## bash scripts that control the CI. This script should be source'd with
## command line arguments from a bash-like (non-POSIX) shell such as
## bash or zsh.
##
## To control some of the functionality of the script, you can set the following
## environment variables prior to calling the script:
## - REQUIRE_DECAY: require the --decay flag to be set
## =============================================================================
Sylvester Joosten
committed
## Commented out because this should be taken care of by the
## calling script to not enforce a fixed directory structure.
## make sure we launch this script from the project root directory
Sylvester Joosten
committed
#PROJECT_ROOT="$( cd "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"/..
#pushd ${PROJECT_ROOT}
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## =============================================================================
## Step 1: Process the command line arguments
function print_the_help {
echo "USAGE: --ebeam E --pbeam E --config C1 --decay D2"
echo " [--config C2 --decay D2 --decay D3 ...]"
echo "REQUIRED ARGUMENTS:"
echo " --ebeam Electron beam energy"
echo " --pbeam Ion beam energy"
echo " --config Generator configuration identifiers (at least one)"
if [ ! -z ${REQUIRE_DECAY} ]; then
echo " --decay Specific decay particle (e.g. muon)."
fi
if [ ! -z ${REQUIRE_LEADING} ]; then
echo " --leading Leading particle of interest (e.g. jpsi)."
fi
echo " -h,--help Print this message"
echo ""
echo " Generate multiple monte carlo samples for a desired process."
exit
}
## Required variables
EBEAM=
PBEAM=
DECAYS=
CONFIG=
while [ $# -gt 0 ]
do
key="$1"
case $key in
--config)
CONFIG="$2"
shift # past argument
shift # past value
;;
--ebeam)
EBEAM="$2"
shift # past argument
shift # past value
;;
--pbeam)
PBEAM="$2"
shift # past argument
shift # past value
;;
--leading)
LEADING="$2"
shift # past argument
shift # past value
;;
--decay)
DECAY="$2"
shift # past argument
shift # past value
;;
-h|--help)
print_the_help
exit 0
;;
*) # unknown option
echo "unknown option"
exit 1
;;
esac
done
if [ -z $CONFIG ]; then
echo "ERROR: CONFIG not defined: --config <config>"
print_the_help
exit 1
elif [ -z $EBEAM ]; then
echo "ERROR: EBEAM not defined: --ebeam <energy>"
print_the_help
exit 1
elif [ -z $PBEAM ]; then
echo "ERROR: PBEAM not defined: --pbeam <energy>"
print_the_help
exit 1
elif [ -z $LEADING ] && [ ! -z $REQUIRE_LEADING ]; then
echo "ERROR: LEADING not defined: --leading <channel>"
print_the_help
exit 1
elif [ ! -z $LEADING ] && [ -z $REQUIRE_LEADING ]; then
echo "ERROR: LEADING flag specified but not required"
print_the_help
exit 1
elif [ -z $DECAY ] && [ ! -z $REQUIRE_DECAY ]; then
echo "ERROR: DECAY not defined: --decay <channel>"
print_the_help
exit 1
elif [ ! -z $DECAY ] && [ -z $REQUIRE_DECAY ]; then
echo "ERROR: DECAY flag specified but not required"
print_the_help
exit 1
fi
## Export the configured variables
export CONFIG
export EBEAM
export PBEAM
if [ ! -z $REQUIRE_LEADING ]; then
export LEADING
fi
if [ ! -z $REQUIRE_DECAY ]; then
export DECAY
fi