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Re: Please help me test this on MS-Windows
From: |
Óscar Fuentes |
Subject: |
Re: Please help me test this on MS-Windows |
Date: |
Sun, 07 Mar 2021 17:37:57 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Matt Armstrong <matt@rfc20.org> writes:
> Can somebody with access to an MS-Windows machine help me test the code
> below?
>
> Evaling this in *scratch* suffices. `unlock-buffer' should signal an
> error. It does on POSIX-like systems. I'm 99% sure it will on
> MS-Windows too, but I'd like to confirm, as well as see the specific
> error thrown. Emacs 27 or 28 is fine.
>
> (let* ((dir (file-name-as-directory
> (make-temp-file "unlock-test" t)))
> (name (concat dir "a"))
> (lockname-as-directory (file-name-as-directory (concat dir ".#a")))
> (spoiler-name (concat lockname-as-directory "spoiler")))
> (unwind-protect
> (progn
> ;; Create a file named DIR/.#a/spoiler, then attempt to unlock a
> ;; buffer named DIR/a. `unlock-buffer' should signal a file-error.
> (make-directory lockname-as-directory)
> (with-temp-file spoiler-name
> (insert "Hello, World!"))
> (with-temp-buffer
> (set-buffer-modified-p t)
> (let ((buffer-file-name name)
> (buffer-file-truename name))
> (unlock-buffer))))
> (delete-directory dir t nil)))
emacs -Q
GNU Emacs 27.1 (build 1, i686-w64-mingw32) of 2020-11-19
Debugger entered--Lisp error: (file-error "Unlocking file" #("Permission
denied" 0 17 (charset windows-1252))
"c:/Users/Oscar/AppData/Local/Temp/unlock-testxeeb8...")
unlock-buffer()
(let ((buffer-file-name name) (buffer-file-truename name)) (unlock-buffer))
(progn (set-buffer-modified-p t) (let ((buffer-file-name name)
(buffer-file-truename name)) (unlock-buffer)))
(unwind-protect (progn (set-buffer-modified-p t) (let ((buffer-file-name
name) (buffer-file-truename name)) (unlock-buffer))) (and (buffer-name
temp-buffer) (kill-buffer temp-buffer)))
(save-current-buffer (set-buffer temp-buffer) (unwind-protect (progn
(set-buffer-modified-p t) (let ((buffer-file-name name) (buffer-file-truename
name)) (unlock-buffer))) (and (buffer-name temp-buffer) (kill-buffer
temp-buffer))))
(let ((temp-buffer (generate-new-buffer " *temp*"))) (save-current-buffer
(set-buffer temp-buffer) (unwind-protect (progn (set-buffer-modified-p t) (let
((buffer-file-name name) (buffer-file-truename name)) (unlock-buffer))) (and
(buffer-name temp-buffer) (kill-buffer temp-buffer)))))
(progn (make-directory lockname-as-directory) (let ((temp-file spoiler-name)
(temp-buffer (generate-new-buffer " *temp file*"))) (unwind-protect (prog1
(save-current-buffer (set-buffer temp-buffer) (insert "Hello, World!"))
(save-current-buffer (set-buffer temp-buffer) (write-region nil nil temp-file
nil 0))) (and (buffer-name temp-buffer) (kill-buffer temp-buffer)))) (let
((temp-buffer (generate-new-buffer " *temp*"))) (save-current-buffer
(set-buffer temp-buffer) (unwind-protect (progn (set-buffer-modified-p t) (let
((buffer-file-name name) (buffer-file-truename name)) (unlock-buffer))) (and
(buffer-name temp-buffer) (kill-buffer temp-buffer))))))
(unwind-protect (progn (make-directory lockname-as-directory) (let
((temp-file spoiler-name) (temp-buffer (generate-new-buffer " *temp file*")))
(unwind-protect (prog1 (save-current-buffer (set-buffer temp-buffer) (insert
"Hello, World!")) (save-current-buffer (set-buffer temp-buffer) (write-region
nil nil temp-file nil 0))) (and (buffer-name temp-buffer) (kill-buffer
temp-buffer)))) (let ((temp-buffer (generate-new-buffer " *temp*")))
(save-current-buffer (set-buffer temp-buffer) (unwind-protect (progn
(set-buffer-modified-p t) (let (... ...) (unlock-buffer))) (and (buffer-name
temp-buffer) (kill-buffer temp-buffer)))))) (delete-directory dir t nil))
(let* ((dir (file-name-as-directory (make-temp-file "unlock-test" t))) (name
(concat dir "a")) (lockname-as-directory (file-name-as-directory (concat dir
".#a"))) (spoiler-name (concat lockname-as-directory "spoiler")))
(unwind-protect (progn (make-directory lockname-as-directory) (let ((temp-file
spoiler-name) (temp-buffer (generate-new-buffer " *temp file*")))
(unwind-protect (prog1 (save-current-buffer (set-buffer temp-buffer) (insert
"Hello, World!")) (save-current-buffer (set-buffer temp-buffer) (write-region
nil nil temp-file nil 0))) (and (buffer-name temp-buffer) (kill-buffer
temp-buffer)))) (let ((temp-buffer (generate-new-buffer " *temp*")))
(save-current-buffer (set-buffer temp-buffer) (unwind-protect (progn
(set-buffer-modified-p t) (let ... ...)) (and (buffer-name temp-buffer)
(kill-buffer temp-buffer)))))) (delete-directory dir t nil)))
(progn (let* ((dir (file-name-as-directory (make-temp-file "unlock-test" t)))
(name (concat dir "a")) (lockname-as-directory (file-name-as-directory (concat
dir ".#a"))) (spoiler-name (concat lockname-as-directory "spoiler")))
(unwind-protect (progn (make-directory lockname-as-directory) (let ((temp-file
spoiler-name) (temp-buffer (generate-new-buffer " *temp file*")))
(unwind-protect (prog1 (save-current-buffer ... ...) (save-current-buffer ...
...)) (and (buffer-name temp-buffer) (kill-buffer temp-buffer)))) (let
((temp-buffer (generate-new-buffer " *temp*"))) (save-current-buffer
(set-buffer temp-buffer) (unwind-protect (progn ... ...) (and ... ...)))))
(delete-directory dir t nil))))
eval((progn (let* ((dir (file-name-as-directory (make-temp-file "unlock-test"
t))) (name (concat dir "a")) (lockname-as-directory (file-name-as-directory
(concat dir ".#a"))) (spoiler-name (concat lockname-as-directory "spoiler")))
(unwind-protect (progn (make-directory lockname-as-directory) (let ((temp-file
spoiler-name) (temp-buffer ...)) (unwind-protect (prog1 ... ...) (and ...
...))) (let ((temp-buffer ...)) (save-current-buffer (set-buffer temp-buffer)
(unwind-protect ... ...)))) (delete-directory dir t nil)))) t)
elisp--eval-last-sexp(nil)
eval-last-sexp(nil)
funcall-interactively(eval-last-sexp nil)
call-interactively(eval-last-sexp nil nil)
command-execute(eval-last-sexp)