Rust: Difference between revisions

Cross-compiling: add link to easy rust crate
Add tip for using rust-analyzer from nixpkgs with the VS Code extension
 
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== Installating with bindgen support ==
== Installating with bindgen support ==
By default crates using <code>bindgen</code> will not compile. To add bindegen support add the <code>rustPlatform.bindegenHook</code> to your <code>nativeBuildInputs</code>.
By default crates using <code>bindgen</code> will not compile. To add bindgen support add the <code>rustPlatform.bindgenHook</code> to your <code>nativeBuildInputs</code>.


Here's an example <code>shell.nix</code>:
Here's an example <code>shell.nix</code>:
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* use [https://crates.io/crates/cargo-xwin cargo-xwin] with rustup install or the [https://search.nixos.org/packages?show=cargo-xwin&type=packages&query=cargo+windows nix cargo plugin]  
* use [https://crates.io/crates/cargo-xwin cargo-xwin] with rustup install or the [https://search.nixos.org/packages?show=cargo-xwin&type=packages&query=cargo+windows nix cargo plugin]  
* run cargo commands prefixed by xwin, e.g. <code>cargo xwin run --target x86_64-pc-windows-msvc</code>


== Unofficial overlays ==
== Unofficial overlays ==
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At the time of writing, there are now no less than 8 different solutions for building Rust code with Nix. In the following table they are compared:
At the time of writing, there are now no less than 8 different solutions for building Rust code with Nix. In the following table they are compared:


{|
{| class="wikitable" style="margin:auto"
| Name
| Cargo.lock solution
| Derivations
| Build logic
| Supports cross
| Notes
|-
|-
| [https://github.com/NixOS/nixpkgs/blob/4fc53b59aecbc25c0e173163d60155f8fca14bfd/doc/languages-frameworks/rust.section.md <code>buildRustPackage</code>]
! Name !! Cargo.lock solution !! Derivations !! Build logic !! Supports cross !! Notes
|-
| <code>[https://github.com/NixOS/nixpkgs/blob/master/doc/languages-frameworks/rust.section.md buildRustPackage]</code>
| Checksum
| Checksum
| 1
| 1
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</syntaxhighlight>
</syntaxhighlight>


=== VSCode integration ===
=== VS Code integration ===
The [https://marketplace.visualstudio.com/items?itemName=rust-lang.rust-analyzer rust-lang.rust-analyzer] VSCode extension offers Rust support.
The [https://marketplace.visualstudio.com/items?itemName=rust-lang.rust-analyzer] VS Code extension offers Rust support.
 
If you get the error <code>can't load standard library, try installing rust-src</code>, either configure <code>RUST_SRC_PATH</code> as shown above, or set <code>"rust-analyzer.server.path": "rust-analyzer"</code> in your VS Code settings to use rust-analyzer from nixpkgs rather than the one bundled with the extension.


You can use the [https://marketplace.visualstudio.com/items?itemName=arrterian.nix-env-selector arrterian.nix-env-selector] extension to enable your nix-shell inside VSCode and have these settings picked up by other extensions.
You can use the [https://marketplace.visualstudio.com/items?itemName=arrterian.nix-env-selector arrterian.nix-env-selector] extension to enable your nix-shell inside VSCode and have these settings picked up by other extensions.