sh-common/ssh.sh

#############################################################################
#
# SSH Environment Setup
#
#############################################################################

SSH_ENV=$HOME/.ssh/environment
USE_SSH_AGENT=true;
USE_GPG_AGENT=true;

# Start the ssh-agent if it exists
function _start_ssh_agent {
    echo "Initializing new SSH agent..."
    # spawn ssh-agent
    /usr/bin/ssh-agent | sed 's/^echo/#echo/' > "${SSH_ENV}"
    echo succeeded
    chmod 600 "${SSH_ENV}"
    . "${SSH_ENV}" > /dev/null
    /usr/bin/ssh-add
}

function start-ssh-agent() {
    if $USE_SSH_AGENT && command -v ssh-agent >/dev/null 2>&1; then
        if [ -f "${SSH_ENV}" ]; then
             source "${SSH_ENV}" > /dev/null
             ps -ef | grep ${SSH_AGENT_PID} | grep ssh-agent$ > /dev/null || _start_ssh_agent;

        else
            _start_ssh_agent;
        fi
    fi
}

function start-gpg-keychain() {
    if ! pgrep -x -i "GPG\ Keychain" > /dev/null; then
        if [ -d "/Applications/GPG Keychain.app" ]; then
            /Applications/GPG\ Keychain.app/Contents/MacOS/GPG\ Keychain & 2>&1;
            disown;
        fi
    fi
}

# Start up the gpg agent if it exists
function start-gpg-agent() {
    if $USE_GPG_AGENT && command -v gpg-agent >/dev/null 2>&1 ; then
        [ -f ~/.gpg-agent-info ] && source ~/.gpg-agent-info
        if [ -S "${GPG_AGENT_INFO%%:*}" ]; then
            export GPG_AGENT_INFO;
            export SSH_AUTH_SOCK;
            export SSH_AGENT_PID;
        else
            echo "Initializing new GPG agent...";
            eval $( gpg-agent --daemon --enable-ssh-support );
        fi
    fi
}
function fix-gpg-agent () {
    killall ssh-agent gpg-agent;
    unset GPG_AGENT_INFO SSH_AGENT_PID SSH_AUTH_SOCK;
    start-gpg-agent;
    ssh-add -l;
    start-gpg-keychain;
}