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#!/bin/sh

[ -n "${GNUPGHOME}" ] || GNUPGHOME="${HOME}/.gnupg"

if [ -r "${GNUPGHOME}/gpg.conf" ]
then
    CFG="${GNUPGHOME}/gpg.conf"
else
    CFG="${GNUPGHOME}/options"
fi

if grep -qs "^use-agent" ${CFG} 2>/dev/null
then
    if [ -s "${GNUPGHOME}/GPG_AGENT_INFO" ] && kill -0 "`cut -d: -f2 ${GNUPGHOME}/GPG_AGENT_INFO`" 2>/dev/null
    then
	export GPG_AGENT_INFO="`cat ${GNUPGHOME}/GPG_AGENT_INFO`"
    else
	eval "`gpg-agent --daemon`"
	echo $GPG_AGENT_INFO > ${GNUPGHOME}/GPG_AGENT_INFO
    fi
    export GPG_TTY=`tty`
fi