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457b7cab1e
If the user has installed one package while :emacs undo installs the other, they're gonna have a bad time.
8 lines
396 B
EmacsLisp
8 lines
396 B
EmacsLisp
;;; emacs/undo/doctor.el -*- lexical-binding: t; -*-
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(let* ((unwanted (if (modulep! +tree) 'undo-fu 'undo-tree))
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(wanted (if (modulep! +tree) 'undo-tree 'undo-fu)))
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(when (doom-package-in-module-p unwanted :user)
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(error! "User has installed %S, which is incompatible with %S" unwanted wanted)
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(explain! "Set (or unset) this module's +tree flag to set up one or the other.")))
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