feat(auth-config): Retry auth-source-search when failed

- Add `cj/ensure-auth` and `cj/ensure-auth-before` helpers and advice `cj/auth-source-search-retry` around `auth-source-search` to loop (killing the gpg-agent and retrying) until the `.authinfo.gpg` file is decrypted.
- Include usage examples for wrapping other entry points (e.g., GPT toggle, mu4e, Tramp, Dirvish).
- Fix indentation in an existing test.

1 files changed, 42 insertions, 1 deletions

diff --git a/modules/auth-config.el b/modules/auth-config.el
index 43849f20..5dbce2ef 100644
--- a/modules/auth-config.el
+++ b/modules/auth-config.el
@@ -38,6 +38,47 @@
   :config
   (setq epg-gpg-program "gpg2")) ;; force use gpg2 (not gpg v.1)
 
+;; ----------------------------- Ensure-Auth-Before ----------------------------
+
+(defun cj/ensure-auth-before (&rest _args)
+  "Ensure .authinfo.gpg is unlocked before calling the real function."
+  (cj/ensure-auth))
+
+(defun cj/ensure-auth ()
+  "Make sure .authinfo.gpg is decrypted (loops on failure)."
+  (interactive)
+  (auth-source-search :max 1))
+
+(with-eval-after-load 'auth-source
+  (defun cj/auth-source-search-retry (orig-fun &rest args)
+    "Advice around `auth-source-search' to loop until we get non-nil."
+    (let (res)
+      (while (not (setq res (apply orig-fun args)))
+        ;; user hit RET or wrong passphrase → kill agent & retry
+        (message "Auth failed or cancelled; killing gpg-agent and retrying…")
+        (start-process "gpgconf-kill-gpg-agent" nil
+                       "gpgconf" "--kill" "gpg-agent")
+        (sleep-for 0.5))
+      res))
+
+  (advice-add 'auth-source-search :around #'cj/auth-source-search-retry))
+
+;; Example: run it before your GPT toggle
+;;(advice-add 'cj/toggle-gptel :before #'cj/ensure-auth-before)
+
+;; Example: before mu4e actually sends a message
+;;(advice-add 'smtpmail-send-it    ; or `mu4e~proc-send` if you prefer
+;;            :before #'cj/ensure-auth-before)
+
+;; Example: before Tramp prompts for a password
+;; (advice-add 'tramp-read-passwd   ; wherever Tramp reads your passphrase
+;;             :before #'cj/ensure-auth-before)
+
+;; ;; Example: before Dirvish opens a remote directory
+;; (advice-add 'dirvish-find-file    ; or the exact entry-point you use
+;;             :before #'cj/ensure-auth-before)
+
+
 (provide 'auth-config)
 ;;; auth-config.el ends here.
 
@@ -50,7 +91,7 @@
 (ert-deftest auth-config/authinfo-file-exists ()
   "Verify that `authinfo-file` actually exists on disk."
   (should (and (stringp authinfo-file)
-			   (file-exists-p authinfo-file))))
+               (file-exists-p authinfo-file))))
 
 (ert-deftest auth-config/gpg2-is-on-path ()
   "Verify that the `gpg2` executable is on the user’s PATH."