Load and clear tokens from pass

load_tokens_from_pass.sh

# Source this script to load your tokens from `pass` into your current session
#
# Not brilliant but better than having them hang out forever

# Number of seconds to keep your tokens in your session
# Suggest making it slightly random so you don't accidentally kill some other sleep

keep_seconds=1234

function tokens_clear() {
  unset TOKEN1
  unset TOKEN2
  unset YOU_GET_THE_IDEA
}

test -z "${TOKEN1}" && export TOKEN1=$( pass show services/token1 )
test -z "${TOKEN2}" && export TOKEN2=$( pass show services/token2 )
test -z "${YOU_GET_THE_IDEA}" && export YOU_GET_THE_IDEA=$( pass show other_stuff/ygti )

trap tokens_clear SIGUSR2

current_sleep=$( pstree -pa $$ | grep "sleep,[[:digit:]]\+ ${keep_seconds}" | cut -f2 -d',' | cut -f1 -d' ' )

if [ -n "$current_sleep" ]; then
  kill $current_sleep
fi

current_shell=$BASHPID
( sleep $keep_seconds; kill -SIGUSR2 $current_shell ) >& /dev/null & disown