Handle AWS SSO login buffer cleanup

Added process sentinel to close the *aws-sso-login* buffer when the AWS SSO login process finishes

emacs/.emacs.d/config/init-aws.el

@@ -30,7 +30,16 @@
 
 (defun aws-sso-login ()
   (interactive)
-  (async-shell-command "AWS_PROFILE=default aws sso login"))
+  (let ((buffer "*aws-sso-login*"))
+    (async-shell-command "AWS_PROFILE=default aws sso login" buffer)
+    (with-current-buffer buffer
+      (let ((proc (get-buffer-process (current-buffer))))
+        (set-process-sentinel
+         proc
+         (lambda (proc sentinel)
+           (when (string-match-p "finished" sentinel)
+             (with-selected-window (get-buffer-window (process-buffer proc) t)
+               (quit-window)))))))))
 
 (add-hook 'emacs-startup-hook
           (lambda ()