Rustaceans at the border [LWN.net]

Rustaceans at the border

Posted Apr 16, 2022 7:16 UTC (Sat) by pkolloch (subscriber, #21709)
In reply to: Rustaceans at the border by qyliss
Parent article: Rustaceans at the border

One thing that would helped me immensely: Have a cargo sub command that builds a crate in isolation. With a command line option for the directory of the output artifacts. And being able to specify all the dependency outputs as input.

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Rustaceans at the border

Posted Apr 16, 2022 8:35 UTC (Sat) by atnot (guest, #124910) [Link] (1 responses)

What would that provide over just using rustc directly?

Rustaceans at the border

Posted Apr 16, 2022 17:45 UTC (Sat) by pkolloch (subscriber, #21709) [Link]

There is a lot of plumbing that cargo does:

setting env variables
running build scripts
setting features
setting something like a symbol prefix to avoid clashes
linker flags
... and a lot of other details

It's surprisingly hard to replicate. I know because I helped doing it for nix with contributions to buildRustCrate in nixpkgs and creating crate2nix.