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Signal user-error on duplicate package refresh

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* lisp/emacs-lisp/package.el (package-menu-refresh): Signal a
user-error if there is already a refresh running in the
background.  Doc fix.  (Bug#36707)
This commit is contained in:
Stefan Kangas 2019-07-17 19:55:08 +02:00
parent b289ceaf79
commit a6d87ea045
1 changed files with 6 additions and 3 deletions
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lisp/emacs-lisp/package.el
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@ -3086,12 +3086,15 @@ Return (PKG-DESC [NAME VERSION STATUS DOC])."
"`package-archive-contents' before the latest refresh.")
(defun package-menu-refresh ()
"Download the Emacs Lisp package archive.
This fetches the contents of each archive specified in
`package-archives', and then refreshes the package menu."
"In Package Menu, download the Emacs Lisp package archive.
Fetch the contents of each archive specified in
`package-archives', and then refresh the package menu. Signal a
user-error if there is already a refresh running asynchronously."
(interactive)
(unless (derived-mode-p 'package-menu-mode)
(user-error "The current buffer is not a Package Menu"))
(when (and package-menu-async package--downloads-in-progress)
(user-error "Package refresh is already in progress, please wait..."))
(setq package-menu--old-archive-contents package-archive-contents)
(setq package-menu--new-package-list nil)
(package-refresh-contents package-menu-async))