Add ssh-agent setup for pass-phrase protection

Gonna be using pass phrase ssh keys...

scripts/ssh_session

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+#
+# setup ssh-agent
+#
+
+SSH_ENV="$HOME/.ssh/environment"
+
+function start_agent {
+     echo "Initialising new SSH agent..."
+     /usr/bin/ssh-agent | sed 's/^echo/#echo/' > "${SSH_ENV}"
+     echo succeeded
+     chmod 600 "${SSH_ENV}"
+     . "${SSH_ENV}" > /dev/null
+     /usr/bin/ssh-add;
+}
+
+# Source SSH settings, if applicable
+
+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
+