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docs(undo): doctor: check for other undo package

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If the user has installed one package while :emacs undo installs the
other, they're gonna have a bad time.
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Henrik Lissner
2025-04-05 01:59:45 -04:00
parent 9dfcb5401f
commit 457b7cab1e
1 changed files with 7 additions and 0 deletions
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modules/emacs/undo/doctor.el Normal file
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;;; emacs/undo/doctor.el -*- lexical-binding: t; -*-
(let* ((unwanted (if (modulep! +tree) 'undo-fu 'undo-tree))
(wanted (if (modulep! +tree) 'undo-tree 'undo-fu)))
(when (doom-package-in-module-p unwanted :user)
(error! "User has installed %S, which is incompatible with %S" unwanted wanted)
(explain! "Set (or unset) this module's +tree flag to set up one or the other.")))