* lisp/files.el (trusted-content): Rename from `trusted-files`.
Update all references.
* lisp/progmodes/elisp-mode.el (lisp-interaction-mode):
* lisp/ielm.el (inferior-emacs-lisp-mode):
* lisp/simple.el (read--expression): Set `trusted-content` since
these buffers contain code that the user presumably intends to run anyway.
(elisp--safe-macroexpand-all): Make the warning more discreet.
To address serious security issues (CVE-2024-53920), disable
`elisp-flymake-byte-compile` except in those files explicitly
specified as "trusted".
For that introduce a new custom var `trusted-files` and new
function `trusted-content-p`.
While at it, similarly skip the implicit macroexpansion done during
completion if the current file is not trusted.
* lisp/files.el (trusted-files): New variable.
(trusted-content-p): New function.
* lisp/progmodes/elisp-mode.el (elisp--safe-macroexpand-all):
New function, extracted from `elisp--local-variables`.
Use `trusted-content-p`.
(elisp--local-variables): Use it.
(elisp-flymake-byte-compile): Disable according to `trusted-content-p`.
Use shell-quote-wildcard-pattern on the switches string split by
split-string-and-unquote. This helps to quote such switches as
"--block-size='1" (bug#71935).
* lisp/dired.el (dired-jump): Disable dired-omit-mode with -1.
* lisp/files.el (recover-session): Disable dired-omit-mode
explicitly afterwards instead of modifying dired-mode-hook
that fails when it contains a lambda.
Make it possible to provide more dir-local variables, such as
done by the Editorconfig package.
* lisp/files.el (hack-dir-local--get-variables): Make arg optional.
(hack-dir-local-get-variables-functions): New hook.
(hack-dir-local-variables): Run it instead of calling
`hack-dir-local--get-variables`.
* doc/lispref/variables.texi (Directory Local Variables):
Document the new hook.
* doc/lispref/backups.texi (Reverting):
Add documentation for 'revert-buffer-restore-functions'.
* lisp/files.el (revert-buffer-restore-functions): New variable.
(revert-buffer-restore-read-only): New function.
(revert-buffer): Use 'revert-buffer-restore-functions' with
the default value 'revert-buffer-restore-read-only' (bug#69511).
* lisp/buff-menu.el (Buffer-menu-mode): Add hook
'revert-buffer-restore-functions' to restore
outline-minor-mode highlighting.
* doc/misc/tramp.texi (Frequently Asked Questions): Describe how
to manipulate trash-directory.
Explain tramp-inhibit-errors-if-setting-file-attributes-fail.
* lisp/files.el (move-file-to-trash): Use connection-local value
of `trash-directory'. (Bug#70421)
The old code tested if the mode function is `fboundp` but in an
inconsistent way and without paying attention to
`major-mode-remap`.
* lisp/files.el (set-auto-mode-0): Return `:keep` rather than nil if
the mode was already set. And emit a warning when the mode function
doesn't exist.
(set-auto-mode): Remove checks that the mode function exists now that
`set-auto-mode-0` does it for us. Adjust to the new return values of
that function, and simplify the code using a big `or` instead of
a sequence of steps each setting&testing `done`.
(hack-local-variables--find-variables): Use `major-mode-remap`
when skipping the "mode:" entries that specify modes we don't have.
Also, when (eq handle-mode t), don't bother building a list of results
only to return a single element in the end.
While `major-mode-remap-alist` provides a way for users to indicate the
major mode of their choice, we need a similar variable for the
use of packages.
This patch adds a new `major-mode-remap-defaults` and changes various
packages to obey it or make use of it.
I think it nicely cleans the regexp duplication between CC-mode and
`c-ts-mode.el` and also makes it easier/cleaner for users to override
the changes made by `*-ts-mode.el`.
* lisp/files.el (major-mode-remap-defaults): New variable.
(major-mode-remap): New function.
(set-auto-mode-0): Use it.
* doc/lispref/modes.texi (Auto Major Mode): Document them.
* lisp/textmodes/tex-mode.el (tex--redirect-to-submode):
Use `major-mode-remap`.
(major-mode-remap-defaults): Set it to remap AUCTeX modes by default.
* lisp/progmodes/ruby-ts-mode.el (auto-mode-alist): Leave it alone.
(major-mode-remap-defaults): Set this one instead.
* lisp/progmodes/c-ts-mode.el (c-or-c++-ts-mode): Use `major-mode-remap`.
(auto-mode-alist): Leave it alone.
(major-mode-remap-defaults): Set this one instead.
* lisp/org/ox.el (org-export-to-buffer): Modernize docstring accordingly.
* lisp/progmodes/cc-mode.el (c-or-c++-mode):
* lisp/org/ox-latex.el (org-latex-export-as-latex):
* lisp/org/ox-koma-letter.el (org-koma-letter-export-as-latex):
* lisp/org/ox-beamer.el (org-beamer-export-as-latex):
Use `major-mode-remap` when available.
For bug#64939.
* lisp/files.el (auto-mode-interpreter-regexp): Account for possible
VARIABLE=[VALUE] operands.
* test/lisp/files-tests.el (files-tests-auto-mode-interpreter):
Add an example from the coreutils manual.
This is not an exact re-implementation of what env accepts, but
hopefully it should be "good enough".
Example of known limitation: we assume that arguments for
--long-options will be set with '=', but that is not
necessarily the case. '--unset' (mandatory argument) can be
passed as '--unset=VAR' or '--unset VAR', but
'--default-signal' (optional argument) requires an '=' sign.
For bug#64939.
* lisp/files.el (auto-mode-interpreter-regexp): Account for
supplementary arguments passed beside -S/--split-string.
* test/lisp/files-tests.el (files-tests-auto-mode-interpreter):
Test some of these combinations.
This ensures that overlapping shorthands are handled correctly and
consistently even if specified out-of-order by the user.
* doc/lispref/symbols.texi (Shorthands): Describe shorthand sort
order.
* lisp/files.el (hack-local-variables--find-variables): Specially
handle read-symbol-shorthands.
* files.el (auto-mode-alist): Match non-hidden authinfo and netrc
files, since it is reasonable to store passwords in
~/.emacs.d/authinfo.gpg or a similarly named file. (Bug#66241)
* lisp/files.el (find-buffer-visiting): Fix code branch checking for
buffers referring to the same file number. We should check the found
buffer with the file number, not current.
Link: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=66117#412
* src/buffer.c (Fget_truename_buffer): Expose `get_truename_buffer' to
Elisp.
(Ffind_buffer): New subr searching for a live buffer with a given
value of buffer-local variable.
(syms_of_buffer): Register the new added subroutines.
* src/filelock.c (lock_file): Use the new `Fget_truename_buffer' name.
* src/lisp.h:
* test/manual/etags/c-src/emacs/src/lisp.h: Remove no-longer-necessary
extern declarations for `get_truename_buffer'.
* lisp/files.el (find-buffer-visiting): Refactor, using subroutines to
search for buffers instead of slow manual Elisp iterations.
