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local GPG_ENV=$HOME/.gnupg/gpg-agent.env
function start_agent_nossh {
eval $(/usr/bin/env gpg-agent --quiet --daemon --write-env-file ${GPG_ENV} 2> /dev/null)
chmod 600 ${GPG_ENV}
export GPG_AGENT_INFO
}
function start_agent_withssh {
eval $(/usr/bin/env gpg-agent --quiet --daemon --enable-ssh-support --write-env-file ${GPG_ENV} 2> /dev/null)
chmod 600 ${GPG_ENV}
export GPG_AGENT_INFO
export SSH_AUTH_SOCK
export SSH_AGENT_PID
}
# check if another agent is running
if ! gpg-connect-agent --quiet /bye > /dev/null 2> /dev/null; then
# source settings of old agent, if applicable
if [ -f "${GPG_ENV}" ]; then
. ${GPG_ENV} > /dev/null
fi
# check again if another agent is running using the newly sourced settings
if ! gpg-connect-agent --quiet /bye > /dev/null 2> /dev/null; then
# check for existing ssh-agent
if ssh-add -l > /dev/null 2> /dev/null; then
# ssh-agent running, start gpg-agent without ssh support
start_agent_nossh;
else
# otherwise start gpg-agent with ssh support
start_agent_withssh;
fi
fi
fi
GPG_TTY=$(tty)
export GPG_TTY
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