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Fix #5060: don't hash relative backup file paths

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Also refactors undo-fu-session's make-hashed-file-path advise to use
make-backup-file-name-1.
This commit is contained in:
Henrik Lissner 2021-05-16 14:01:06 -04:00
parent 62c231efe6
commit 69beabe287
2 changed files with 24 additions and 7 deletions
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12
modules/emacs/undo/config.el
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@ -31,10 +31,16 @@
:config
(setq undo-fu-session-incompatible-files '("\\.gpg$" "/COMMIT_EDITMSG\\'" "/git-rebase-todo\\'"))
;; HACK Fix #4993: prevent file names that are too long for the filesystem.
;; HACK Fix #4993: we've advised `make-backup-file-name-1' to produced SHA1'ed
;; filenames to prevent file paths that are too long, so we force
;; `undo-fu-session--make-file-name' to use it instead of its own
;; home-grown overly-long-filename generator.
;; TODO PR this upstream; should be a universal issue
(advice-add #'undo-fu-session--make-file-name
:filter-args #'doom-make-hashed-backup-file-name-a)
(defadvice! +undo-fu-make-hashed-session-file-name-a (file)
:override #'undo-fu-session--make-file-name
(let ((backup-directory-alist `(("." . ,undo-fu-session-directory))))
(concat (make-backup-file-name-1 file)
(if undo-fu-session-compression ".gz" ".el"))))
;; HACK Use the faster zstd to compress undo files instead of gzip
(when (executable-find "zstd")