Re: curl runner broken

Hi Hans,

On Mon, 2026-08-03 at 10:41 +0200, Hans Hagen via ntg-context wrote:
> On 8/3/2026 9:54 AM, Max Chernoff via ntg-context wrote:
> > The curl runner is currently broken because it uses an invalid argument.
> > Changing "--L" to "-L" (one dash) in "data-sch.lmt" seems to have fixed
> > this for me. Or if you prefer using a long option instead, the manpage
> > suggests that "--location" should work too.
>
> what about --follow

*My* curl supports that, but I'm not sure about other peoples',
since --follow was added in v8.16.0, which was only released in
September 2025:

    https://curl.se/ch/8.16.0.html

Whereas --location was first added in 1998, so everybody's curl should
support that:

    https://curl.se/ch/4.9.html

> > (For anybody who is curious, this came up at TUG26, since I used ConTeXt
> > to automatically download and combine all talks for each day into a
> > single PDF file so that we didn't need to switch between multiple
> > files.)
>
> i think there's more to it ... last time mikael and i needed it we found
> that different curl versions behaved differently so the question then is
> ... what should we do

Well "--L" isn't supported by any version of curl, so probably not
that :). But it looks like --follow and --location only differ in
behaviour for non-GET methods

    https://curl.se/docs/manpage.html#--follow

but ConTeXt only uses the external curl binary for GET requests (?), so
I think that --location should be safe.

Thanks,
-- Max
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