Added stanza to init and load SSH AGENT

.zshrc

@@ -99,3 +99,27 @@ source $HOME/.zsh_functions
 # set PATH so it includes user's private bin if it exists
 PATH="$HOME/.local/bin:$HOME/bin:$PATH"
 
+# initialize and load SSH-AGENT
+# https://stackoverflow.com/a/18915067
+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 ${SSH_AGENT_PID} doesn't work under cywgin
+    ps -ef | grep ${SSH_AGENT_PID} | grep ssh-agent$ > /dev/null || {
+        start_agent;
+    }
+else
+    start_agent;
+fi