dbus_codegen: extern location for dbus_codegen does not exist about crate2nix HOT 9 CLOSED

@evanjs Just wondering, but in this particular line of Rust:

include!(concat!(env!("OUT_DIR"), "/build.rs"));

Did you intend to write this?

include!(concat!(env!("OUT_DIR"), "/hello.rs"));

I don't think it makes sense to include!() a build script into your src/main.rs and expect it to successfully compile.

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It's okay! Looks like that line was fixed when the example was committed into master anyway. ☺️

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Is there any workaround for this? It's not even possible to override the src attribute for dependencies properly without patching the generated Nix file, as far as I can tell.

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I submitted a pull request for that to nixpkgs: NixOS/nixpkgs#82155

If you do not want to wait for this, you can override the "workspace_member" argument of buildRustCrate which allows specifying a subdirectory.

from crate2nix.

It landed on master but not yet on nixpkgs-unstable. nixpkgs-unstable is behind roughly a week currently.

Fix is waiting here:

https://github.com/kolloch/crate2nix/tree/pkolloch-auto-workspace-member

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Merged :)

from crate2nix.

Thank you! I can reproduce.

This is due to the crate being in a subpath. Cargo actually looks for a matching Cargo.toml, apparently:

rust-lang/cargo#1462 (comment)

That is a bit crazy but should be supportable in buildRustCrate.

Feel free to add.

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Ah yes I suppose that wasn't the best example.
For some extra context, this is literally what I'm using right now.

pub mod systemd_manager {
    #![allow(unused)]
    include!(concat!(env!("OUT_DIR"), "/systemd_manager.rs"));
}

pub mod systemd_service {
    #![allow(unused)]
    include!(concat!(env!("OUT_DIR"), "/systemd_service.rs"));
}

I must have gotten too caught up in having a minimum reproducible example.

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@emilazy Did you try overriding the source with defaultCrateOverrides? To be honest, I am not sure if it works but it could. I'd be really happy if you tried that out and if it worked documented it as a workaround!

I want to work on this anyways, though.

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