etc/whichpm/test/Option -v outputs version info

   1 #!/usr/bin/env bash
   2
   3 # ---
   4 # IMPORTANT: Use the following statement at the TOP OF EVERY TEST SCRIPT
   5 #            to ensure that this package's 'bin/' subfolder is added to the path so that
   6 #            this package's CLIs can be invoked by their mere filename in the rest
   7 #            of the script.
   8 # ---
   9 PATH=${PWD%%/test*}/bin:$PATH
  10
  11 # Helper function for error reporting.
  12 die() { (( $# > 0 )) && echo "ERROR: $*" >&2; exit 1; }
  13
  14 # Get verbose info:  name<tab>version<tab>core-status<tab>path
  15 out=$(whichpm -v Data::Dumper) || die
  16
  17 # Split result into tokens.
  18 IFS=$'\t' read -ra tokens <<<"$out"
  19
  20 # Make sure the 2nd token looks like a version number.
  21 verToken=${tokens[1]}
  22 [[ $verToken =~ ^v?[[:digit:]]+\. ]] || die "Expected version number as 2nd output field, got '$verToken'."
  23
  24 exit 0
  25