Better version ssh-agent for WSL

rc/ssh-agent.sh

@@ -1,20 +1,40 @@
 # Start ssh agent for private key
 
+function _log() {
+  xlog "[ssh-agent] $*"
+}
+
+_SSH_AGENT_NO_KEYS=1
+_SSH_AGENT_NOT_RUNNING=2
+
 for key in id_ecdsa id_rsa; do
   key_filename="$HOME/.ssh/$key"
 
   if [ -f "$key_filename" ]; then
+    _log "SSH key: $key_filename"
 
     if is_wsl; then
+      _log "WSL ON"
+
       if [ -z "$SSH_AUTH_SOCK" ]; then
         export SSH_AUTH_SOCK=$HOME/.ssh/ssh-agent.sock
       fi
 
-      if [ ! -S "$SSH_AUTH_SOCK" ]; then
+      _log "SSH_AUTH_SOCK: $SSH_AUTH_SOCK"
+
+      ssh-add -L &> /dev/null
+      ssh_add_status=$?
+
+      if [[ ! -S "$SSH_AUTH_SOCK" || $ssh_add_status -eq $_SSH_AGENT_NOT_RUNNING ]]; then
+        _log "Starting ssh-agent"
         eval "$(ssh-agent -s -a "$SSH_AUTH_SOCK")"
       fi
 
-      if ! ssh-add -L > /dev/null; then
+      ssh-add -L &> /dev/null
+      ssh_add_status=$?
+
+      if [[ $ssh_add_status -eq $_SSH_AGENT_NO_KEYS ]]; then
+        _log "Adding SSH key to agent"
         ssh-add "$key_filename"
       fi
     else