pyrox.dev
add an example with buildRustPackage
authored by Eli Flanagan and committed by Raphael Megzari b829fe48 8650a7e6
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doc/languages-frameworks/rust.section.md
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doc/languages-frameworks/rust.section.md
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As of writing, this prints out `rustc 1.56.0 (09c42c458 2021-10-18)`.
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### How to use an overlay toolchain in a derivation {#how-to-use-an-overlay-toolchain-in-a-derivation}
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You can also use an overlay's Rust toolchain with `buildRustPackage`.
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The below snippet demonstrates invoking `buildRustPackage` with an oxalica overlay selected Rust toolchain:
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```nix
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with import <nixpkgs>
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{
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overlays = [
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(import (fetchTarball "https://github.com/oxalica/rust-overlay/archive/master.tar.gz"))
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];
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};
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rustPlatform.buildRustPackage rec {
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pname = "ripgrep";
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version = "12.1.1";
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nativeBuildInputs = [
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rust-bin.stable.latest.minimal
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];
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src = fetchFromGitHub {
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owner = "BurntSushi";
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repo = pname;
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rev = version;
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sha256 = "1hqps7l5qrjh9f914r5i6kmcz6f1yb951nv4lby0cjnp5l253kps";
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};
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cargoSha256 = "03wf9r2csi6jpa7v5sw5lpxkrk4wfzwmzx7k3991q3bdjzcwnnwp";
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meta = with lib; {
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description = "A fast line-oriented regex search tool, similar to ag and ack";
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homepage = "https://github.com/BurntSushi/ripgrep";
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license = licenses.unlicense;
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maintainers = [ maintainers.tailhook ];
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};
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}
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```
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Follow the below steps to try that snippet.
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1. create a new directory
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1. save the above snippet as `default.nix` in that directory
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1. cd into that directory and run `nix-build`
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### Rust overlay installation {#rust-overlay-installation}
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You can use this overlay by either changing your local nixpkgs configuration,