gpg-agent Xsession script to cleanup the Ubuntu mess

91-custom-gpg-agent

## http://neagix.blogspot.nl/2014/09/setup-gpg-smartcard-reader-in-ubuntu-14.html
##
##
## NOTE: this script is sourced via dash
##

: ${GNUPGHOME=$HOME/.gnupg}

## customize this entry if you have a binary diversion
GPGAGENT=/usr/bin/gpg-agent
PID_FILE="$GNUPGHOME/gpg-agent-info-$(hostname)"

# start gpg-agent only if use-agent is specified and not already correctly running & configured for current user
if grep -qs '^[[:space:]]*use-agent' "$GNUPGHOME/gpg.conf" "$GNUPGHOME/options" &&
   test -x $GPGAGENT &&
   { test -z "$GPG_AGENT_INFO" || ! $GPGAGENT 2>/dev/null; }; then

   # Invoking gpg-agent with no arguments exits successfully if the agent
   # is already running as pointed by $GPG_AGENT_INFO
   STARTUP="$GPGAGENT --daemon --sh --write-env-file=$PID_FILE $STARTUP"
fi

unset PID_FILE
unset GPGAGENT