From a2f5b830645e48ea10f0d418942eb32e97cb8c23 Mon Sep 17 00:00:00 2001
From: Sean Whitton <spwhitton@spwhitton.name>
Date: Wed, 6 Dec 2023 19:36:01 +0000
Subject: add spw/reset-gnus & rework spw/gnus-startup-wrapper in light of it

---
 .emacs.d/init.el | 50 +++++++++++++++++++++++++++++---------------------
 1 file changed, 29 insertions(+), 21 deletions(-)

diff --git a/.emacs.d/init.el b/.emacs.d/init.el
index 314c428d..b388ba67 100644
--- a/.emacs.d/init.el
+++ b/.emacs.d/init.el
@@ -3233,30 +3233,38 @@ mutt's review view, after exiting EDITOR."
 			     ,(list ',name ,@arglist-names)))))
 	 ,@(cdr parsed-body)))))
 
+(spw/defun-pass-to-gdbmacs spw/reset-gnus ()
+  "Prepare to move Gnus session to another host, or just reset its state.
+
+We want Gnus running on just one machine at once to avoid conflicts in
+automatic updates to score files, and to avoid mail appearing to come back
+unread."
+  (interactive)
+  (when (gnus-alive-p)
+    (pop-to-buffer-same-window gnus-group-buffer)
+    (gnus-group-exit))
+  (if (gnus-alive-p)
+      (user-error "Gnus still running")
+    (delete-file "~/.newsrc.eld")
+    (dolist (mailbox (delete "annex"
+			     (directory-files "~/.fmail/" nil "[[:alpha:]]")))
+      (delete-directory (format "~/.fmail/%s/.nnmaildir/" mailbox) t))
+    (let ((default-directory (expand-file-name "~/src/athpriv/")))
+      (spw/eshell-jump 'strict)
+      (spw/eshell-insert-and-send "mr autoci && mr up && mr push"))))
+
 (defvar gnus-always-read-dribble-file)
 
 (defun spw/gnus-startup-wrapper (orig-fun &rest args)
-  (when-let ((daemon (and (file-directory-p "~/.fmail/") (daemonp))))
-    (unless (file-exists-p "~/.newsrc.eld")
-      (user-error "Must use dedicated Emacs for Gnus first run"))
-    (unless (or (string= "gdbmacs" daemon)
-		(spw/on-host-primary-p "athena.silentflame.com"))
-      (user-error "This is not the Gnusmacs you're looking for")))
-  (let ((repo (expand-file-name "~/src/athpriv/")))
-    (when (file-directory-p repo)
-      ;; We want Gnus running on just one machine at once to avoid conflicts
-      ;; in automatic updates to score files.  If there are no uncommitted
-      ;; changes then it might be that Gnus is already running somewhere else.
-      (unless (cl-remove-if-not
-	       (apply-partially #'string-match
-				"^.. \"?News/.+\\.\\(?:SCORE\\|ADAPT\\)\"?$")
-	       (process-lines "mr" "-d" repo "status"))
-	(if (yes-or-no-p
-	     "~/src/athpriv/News/ has no changes; really start Gnus?")
-	    (unless (zerop (call-process "mr" nil "*myrepos athpriv update*"
-					 nil "-d" repo "update"))
-	      (error "mr couldn't update ~/src/athpriv/"))
-	  (user-error "Aborting")))))
+  (let ((daemon (and (file-directory-p "~/.fmail/") (daemonp))))
+    (cond ((and daemon (not (file-exists-p "~/.newsrc.eld")))
+	   (user-error "Must use dedicated Emacs for Gnus first run"))
+	  ((and daemon (not (string= "gdbmacs" daemon))
+		(not (spw/on-host-primary-p "athena.silentflame.com")))
+	   (user-error "This is not the Gnusmacs you're looking for"))
+	  ((not (or daemon
+		    (yes-or-no-p "Confirm ~/src/athpriv/ up-to-date")))
+	   (user-error "Aborting"))))
   (let ((gc-cons-percentage 0.6)
 	(gc-cons-threshold 402653184)
 	(gnus-always-read-dribble-file (file-exists-p "~/.newsrc.eld")))
-- 
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