bug#35739: Bad signature from GNU ELPA

[Richard Copley <rcopley@gmail.com>]

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On Wed, 15 May 2019 at 03:42, Eli Zaretskii <eliz@gnu.org> wrote:

> > From: Richard Copley <rcopley@gmail.com>
> > Date: Tue, 14 May 2019 23:26:27 +0100
> > Cc: 35739@debbugs.gnu.org
> >
> > Thanks, that seems to be it: the attached patch gets rid of the bug (but
> obviously isn't TRT).
> >
> > diff --git a/lisp/url/url-handlers.el b/lisp/url/url-handlers.el
> > index e35d999e0f..f8af2ce88c 100644
> > --- a/lisp/url/url-handlers.el
> > +++ b/lisp/url/url-handlers.el
> > @@ -334,11 +334,11 @@ url-insert-buffer-contents
> >        (when replace
> >          (delete-region (point-min) start)
> >          (delete-region (point) (point-max)))
> > -      (unless (cadr size-and-charset)
> > -        ;; If the headers don't specify any particular charset, use the
> > -        ;; usual heuristic/rules that we apply to files.
> > -        (decode-coding-inserted-region (point-min) (point) url
> > -                                       visit beg end replace))
> > +      ;; (unless (cadr size-and-charset)
> > +      ;;   ;; If the headers don't specify any particular charset, use
> the
> > +      ;;   ;; usual heuristic/rules that we apply to files.
> > +      ;;   (decode-coding-inserted-region (point-min) (point) url
> > +      ;;                                  visit beg end replace))
> >        (let ((inserted (car size-and-charset)))
> >          (when (fboundp 'after-insert-file-set-coding)
> >            (let ((insval (after-insert-file-set-coding inserted visit)))
>
> I don't see how disabling decoding could make sense, can you explain?
>

Not in detail, it's not an area of expertise of mine. We call
(decode-coding-region (point-min) (point-max) 'undecided) on the
payload of "https://elpa.gnu.org/packages/archive-contents",
which is raw text. The resulting buffer's buffer-file-coding-
system is iso-latin-1-dos.

>
> What does this code do on GNU/Linux?
>

The same. The resulting coding system is iso-latin-1-unix.

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