#  getopts has some problems. If an argument is given at the command line with-
#+ out the OPTARG, getops skips it altogether.
#  For example, if -e is passed without a subsequent value, e) is not processed.
#  On the other hand, if -e -b is passed, $ENV=$OPTARG="-b", not the right type
#+ of behaviour.
#  That being said, getops default behaviour for missing/bad arguments is to 
#+ throw an error or default to *). The default behaviour is being suppressed
#+ by the prefixed ":" (getopts ":...") Therefore, the sanity checks are after
#+ the getops/case structure.

while getopts ":e:b:c:q:pPdhl" MyOpts ; do
        case $MyOpts in  # case v. if: mein kampf
        e) # Environment
                ENV=$OPTARG
        ;;
        b) # Branch
                BRANCH=$OPTARG
        ;;
        c) # Component
                COMP=$OPTARG
        ;;
        p) # Yes `p4 sync`
                P4SYNCY="Y"
        ;;
        P) # No `p4 sync`
                P4SYNCN="Y"
                #  Cannot reuse P4SYNCY, otherwise the sanity check
                #+ below could not be made.
        ;;
        q) # Specify QS build type
                QSOPT=$OPTARG
        ;;
        d)
                DEBUG="Y"
        ;;
        l) # Label p4
                LABELPERFORCE="Y"
        ;;
        \? | h) # Help!
                usage
                exit 0
        ;;
#       *) # Bad args.
#               usage
#               exit $ERR_BADARGS
#       ;;
        esac    # --- END of case $MyOpts in ---
done # --- END of while getops ---