gpg-agent.plugin.zsh

# Based on ssh-agent code

local GPG_ENV=$HOME/.gnupg/gpg-agent.env

function start_agent {
  /usr/bin/env gpg-agent --daemon --enable-ssh-support --write-env-file ${GPG_ENV} > /dev/null
  chmod 600 ${GPG_ENV}
  . ${GPG_ENV} > /dev/null
}

# Source GPG agent settings, if applicable
if [ -f "${GPG_ENV}" ]; then
  . ${GPG_ENV} > /dev/null
  ps -ef | grep ${SSH_AGENT_PID} | grep gpg-agent > /dev/null || {
    start_agent;
  }
else
  start_agent;
fi

export GPG_AGENT_INFO
export SSH_AUTH_SOCK
export SSH_AGENT_PID

GPG_TTY=$(tty)
export GPG_TTY