gpg-agent-profile.sh

# check for existing running agent info
if [[ -e $HOME/.gpg-agent-info ]]; then
    source $HOME/.gpg-agent-info
    export GPG_AGENT_INFO SSH_AUTH_SOCK SSH_AGENT_PID
fi
# test existing agent, remove info file if not working
ssh-add -L 2>/dev/null >/dev/null || rm -f $HOME/.gpg-agent-info
# if no info file, start up potentially-new, working agent
if [[ ! -e $HOME/.gpg-agent-info ]]; then
    gpg-agent \
        --enable-ssh-support \
        --daemon \
        --write-env-file \
        --use-standard-socket \
        --pinentry-program $(brew --prefix)/bin/pinentry-mac \
        2>&1 >/dev/null
fi
# load up new agent info
if [[ -e $HOME/.gpg-agent-info ]]; then
    source $HOME/.gpg-agent-info
    export GPG_AGENT_INFO SSH_AUTH_SOCK SSH_AGENT_PID
fi