zsh: update SSH_AUTH_SOCK whithin zellij

This allows ssh agent forwarding to keep working after each ssh
reconnect.

diff --git a/zsh/lib/zellij.zsh b/zsh/lib/zellij.zsh
new file mode 100644 (file)
index 0000000..a30b799
--- /dev/null
+++ b/zsh/lib/zellij.zsh
@@ -0,0 +1,7 @@
+if [[ -n "$ZELLIJ" ]]; then
+    function update-env {
+        # set SSH_AUTH_SOCK to latest socket
+        export SSH_AUTH_SOCK=$(realpath /tmp/ssh-XXXX*/*(om[1]))
+    }
+    preexec_functions+=(update-env)
+fi