Recently gitbash changed default sourcing to bash_profile instead of bashrc. Not big of a deal but if you, like me, share same ‘dot files’ for interactive and local login sessions (think desktop vs server) then this is a minor issue that needs to be addressed. Simplest fix is to change start of gitbash with ‘login’ flag i.e. ‘-l’ instead of (only) ‘-i’. This will source bashrc as well – problem solved.

Now, for using single ssh agent, i tested quite a few ways of doing this. Wind up with the following code. It starts out with determining if running on windows, then spawns one agent and adds my keys to it. It performs some cleanup on exiting (all) terminals. Note: I use ConEmu as a wrapper for gitbash.

if [[ $(uname -s) == Linux ]]
then
    echo Linux no auto ssh agent handling
else
    #echo $(uname -s)
    SSH_ENV=$HOME/.ssh/environment
       
    # start the ssh-agent
    function start_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
        ssh-add ~/.ssh/key_one
        ssh-add ~/.ssh/key_two
                ...
    }
       
    if [ -f "${SSH_ENV}" ]; then
         . ${SSH_ENV} > /dev/null
         ps -ef | grep ${SSH_AGENT_PID} | grep ssh-agent$ > /dev/null || {
            start_agent;
        }
    else
        start_agent;
    fi
   
    function finish {
      # Your cleanup code here
      echo ---------------------------------
      rm -rf $HOME/.ssh/environment
    }
    trap finish EXIT
fi

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