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Prevent the Gnus registry from being loaded twice at startup

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* lisp/gnus/gnus-registry.el (gnus-registry-load): Check if the
  registry is already loaded, and don't load again unless new optional
  FORCE argument is non-nil.
  (gnus-registry-clear): New function to clear the registry, added as
  a Gnus shutdown. Now that loading doesn't unilaterally reset the
  registry, we need to make sure it is reloaded when Gnus is.
This commit is contained in:
Eric Abrahamsen 2019-06-16 19:14:25 -07:00
parent 8c56eb0525
commit 2815174f10
1 changed files with 39 additions and 26 deletions
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65
lisp/gnus/gnus-registry.el
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@ -307,33 +307,40 @@ This is not required after changing `gnus-registry-cache-file'."
(gnus-message 4 "Remaking the Gnus registry")
(setq gnus-registry-db (gnus-registry-make-db))))
(defun gnus-registry-load ()
"Load the registry from the cache file."
(defun gnus-registry-load (&optional force)
"Load the registry from the cache file.
If the registry is already loaded, don't reload unless FORCE is
non-nil."
(interactive)
(let ((file gnus-registry-cache-file))
(condition-case nil
(gnus-registry-read file)
(file-error
;; Fix previous mis-naming of the registry file.
(let ((old-file-name
(concat (file-name-sans-extension
gnus-registry-cache-file)
".eioio")))
(if (and (file-exists-p old-file-name)
(yes-or-no-p
(format "Rename registry file from %s to %s? "
old-file-name file)))
(progn
(gnus-registry-read old-file-name)
(setf (oref gnus-registry-db file) file)
(gnus-message 1 "Registry filename changed to %s" file))
(gnus-registry-remake-db t))))
(error
(gnus-message
1
"The Gnus registry could not be loaded from %s, creating a new one"
file)
(gnus-registry-remake-db t)))))
(when (or force
;; The registry is loaded by both
;; `gnus-registry-initialize' and the read-newsrc hook.
;; Don't load twice.
(null (eieio-object-p gnus-registry-db)))
(let ((file gnus-registry-cache-file))
(condition-case nil
(gnus-registry-read file)
(file-error
;; Fix previous mis-naming of the registry file.
(let ((old-file-name
(concat (file-name-sans-extension
gnus-registry-cache-file)
".eioio")))
(if (and (file-exists-p old-file-name)
(yes-or-no-p
(format "Rename registry file from %s to %s? "
old-file-name file)))
(progn
(gnus-registry-read old-file-name)
(setf (oref gnus-registry-db file) file)
(gnus-message 1 "Registry filename changed to %s" file))
(gnus-registry-remake-db t))))
(error
(gnus-message
1
"The Gnus registry could not be loaded from %s, creating a new one"
file)
(gnus-registry-remake-db t))))))
(defun gnus-registry-read (file)
"Do the actual reading of the registry persistence file."
@ -1102,6 +1109,12 @@ only the last one's marks are returned."
(gnus-registry-set-id-key id key val))))
(message "Import done, collected %d entries" count))))
(defun gnus-registry-clear ()
"Clear the registry."
(setq gnus-registry-db nil))
(gnus-add-shutdown 'gnus-registry-clear 'gnus)
;;;###autoload
(defun gnus-registry-initialize ()
"Initialize the Gnus registry."