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Fix #5133: don't kill LSP after reformatting

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This happened because LSP hooks on kill-buffer-hook (and possibly
others) caused our temporary formatting buffer to talk to LSP as if it
were the original buffer. When the temp buffer was cleaned up, LSP
assumed the original buffer had been closed. No more!

In fact, to avoid similar issues, let's avoid any complex functionality
in hooks in this temp buffer.
This commit is contained in:
Henrik Lissner 2021-06-04 22:22:57 -04:00
parent 2d76bdceb8
commit 78dde6efdd
1 changed files with 14 additions and 3 deletions
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17
modules/editor/format/autoload/format.el
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@ -148,7 +148,15 @@ See `+format/buffer' for the interactive version of this function, and
;; `format-all' (and various formatting functions, like `gofmt') widen
;; the buffer, we must copy the region first.
(let ((output (buffer-substring-no-properties (point-min) (point-max)))
(origin-buffer (or (buffer-base-buffer) (current-buffer))))
(origin-buffer (or (buffer-base-buffer) (current-buffer)))
;; Fixes #5133: some packages (like lsp-mode) can do a bunch
;; of complicated stuff in these hooks. Better to not have to
;; deal with any of them at all.
write-file-functions
before-save-hook
after-save-hook
kill-buffer-query-functions
kill-buffer-hook)
(with-temp-buffer
(with-silent-modifications
(insert output)
@ -156,10 +164,13 @@ See `+format/buffer' for the interactive version of this function, and
;; buffer as possible, in case the formatter is an elisp
;; function, like `gofmt'.
(cl-loop for (var . val)
in (cl-remove-if-not #'listp (buffer-local-variables origin-buffer))
in (cl-remove-if-not #'listp (buffer-local-variables (current-buffer)))
;; Making enable-multibyte-characters buffer-local
;; causes an error.
unless (eq var 'enable-multibyte-characters)
unless (eq var enable-multibyte-characters)
;; Fixes #5133: don't deal with complicated hook
;; functionality! This isn't a real buffer anyway.
unless (string-match-p (symbol-name var) "-\\(hook\\|functions\\)$")
;; Using setq-local would quote var.
do (set (make-local-variable var) val))
;; Since we're piping a region of text to the formatter, remove