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Re: [elpa] externals/marginalia 94fc7f0: README: Add ELPA badge

From: Basil L. Contovounesios
Subject: Re: [elpa] externals/marginalia 94fc7f0: README: Add ELPA badge
Date: Thu, 03 Jun 2021 15:42:44 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)

Stefan Monnier <monnier@iro.umontreal.ca> writes:

> So we'd want the badge URL used in the `README.(md|org)`s such that the
> badge indicates the latest version of the package?

Yes, and thanks for setting up this nice eye candy.

Only minor issue is that the new badges don't play well with hosting
services that aggressively cache images, such as GitHub:


Note that the GNU-devel ELPA version trails the corresponding MELPA one
due to server-side caching.

MELPA seems to solve this by configuring their NGINX web server to serve
badges with the HTTP header 'Cache-Control: no-cache':


  $ wget -Sq https://elpa.gnu.org/devel/dash.svg
    HTTP/1.1 200 OK
    Date: Thu, 03 Jun 2021 14:27:49 GMT
    Server: Apache/2.4.38 (Debian)
    Last-Modified: Wed, 02 Jun 2021 21:02:33 GMT
    ETag: "522-5c3cec70ecf29"
    Accept-Ranges: bytes
    Content-Length: 1314
    Keep-Alive: timeout=5, max=100
    Connection: Keep-Alive
    Content-Type: image/svg+xml
  $ wget -Sq https://melpa.org/packages/dash-badge.svg
    HTTP/1.1 200 OK
    Server: nginx
    Date: Thu, 03 Jun 2021 14:28:05 GMT
    Content-Type: image/svg+xml
    Content-Length: 1165
    Last-Modified: Thu, 03 Jun 2021 13:27:58 GMT
    Connection: keep-alive
    ETag: "60b8d8de-48d"
    Cache-Control: no-cache
    Accept-Ranges: bytes

Is there someone here with access to GNU ELPA's Apache configuration
that would make a similar change?  If not, where should this request go?



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