#!/bin/sh
credspath="${HOME}/.gam"
gpgfile="$1"
echo "source file is ${gpgfile}"
credsfile="$2"
echo "target file is ${credsfile}"
if [ -z ${PASSCODE+x} ]; then
  echo "PASSCODE is unset";
else
  echo "PASSCODE is set";
fi

gpg --quiet --batch --yes --decrypt --passphrase="${PASSCODE}" \
    --output "${credsfile}" "${gpgfile}"

mkdir -p "${credspath}"
tar xvvf "${credsfile}" --directory "${credspath}"
rm -rvf "${gpgfile}"
rm -rvf "${credsfile}"