#!/usr/bin/env bash

printf "\nBeginning snapshot of the current environment gem list into snapshot.gems\n"

file_name="snapshot.gems"

gems=($(gem list | sed 's#[\(|\)]##g' | sed 's#, #,#g' | \tr ' ' ';'))

for gem in "${gems[@]}" ; do

  name="$(echo $gem | awk -F';' '{print $1}')"

  versions=($(echo $gem | awk -F';' '{print $2}' | sed 's#,# #g'))

  for version in "${versions[@]}" ; do

    echo "$name -v$version" >> "$file_name"

  done ; unset version versions

done ; unset file_name

printf "\nCompleted snapshot of the current environment gem list into snapshot.gems\n"

exit $?