curl: move to hyper backend

[milibopp]

Project description

Hyper and curl are looking for Linux distributions to ship curl with hyper as an HTTP backend. The work is almost done, but not quite and they want someone (a Linux distro, e.g.) to commit to shipping it.

We already include rustls as an optional dependency for curl. Supporting hyper-ffi seems fairly similar.

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[milibopp]

cc @seanmonstar @lovek323

[milibopp]

Updated title according to this suggestion.

[nrabulinski]

I asked about it on matrix yesterday and @K900 said that we can’t as curl is part of nixpkgs bootstrap, sadly

[niklaskorz]

I asked about it on matrix yesterday and @K900 said that we can’t as curl is part of nixpkgs bootstrap, sadly

In what sense? That bootstrap can't have Rust dependencies?

[K900]

It can, in theory, but we'd have to pull Rust into the bootstrap, which is a long and rather painful process, or we'd need to have two differently behaving versions of curl in the bootstrap and the final system, which is also not great.

[stephank]

Could gcc-rs make it easier to introduce Rust in the bootstrap? Though no idea if it's far enough along for building Hyper.

There don't currently seem to be any other incentives to add Rust to the bootstrap, looks like? Can't really find anything with a quick search, but perhaps more incentives make the effort more worthwhile.

(Random thoughts)

[niklaskorz]

Curl has officially removed hyper support: https://daniel.haxx.se/blog/2024/12/21/dropping-hyper/

The hyper backend code has been removed in git as of December 21. There will be no traces left of it in the curl 8.12.0 release coming in February 2025.