Re: how does antioxidant work?

[Maxime Devos]

On 08-09-2022 03:17, jgart wrote:

> Hi Maxime,
>
> how does antioxidant build system for rust work at a high level?
>
> https://notabug.org/maximed/cargoless-rust-experiments
>
> all best,
>

There are two parts:

• The actual build system (antioxidant.scm) -- it reads the Cargo.toml to see what the dependencies are, looks for the (compiled!) dependencies in the 'inputs' and 'native-inputs', runs build.rs, compiles it (with 'rustc') and install the compiled result (sources aren't installed).  It also runs tests.
  
• The cargo -> antioxidant transformation code.  The procedure vitaminate/auto* takes a package, and rewrites it to fit with antioxidant -- one of these is moving #:cargo-inputs into 'inputs', and (recursively) rewriting these inputs. Sometimes phases need to be adjusted, sometimes for cargo there was #:skip-build? but antioxidant doesn't do that, and it runs tests, so it sometimes turns out tests need to be disabled.
  
  (This will have to later be changed to _source code_ transformations, maybe with "guix style", to integrate things into Guix proper)
  

    There are also some other small things with some checks for
    vendoring, #:test-options

Greetings,
Maxime.

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