59 lines
2.0 KiB
Markdown
59 lines
2.0 KiB
Markdown
# `rust-toolchain` Action
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[](https://gitter.im/actions-rs/community)
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This GitHub Action installs [Rust toolchain](https://github.com/rust-lang/rustup.rs#toolchain-specification).
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Optionally it can set installed toolchain as a default and as an override for current directory.
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## Example workflow
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```yaml
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on: [push]
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name: build
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jobs:
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check:
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name: Rust project
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@master
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- name: Install nightly
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uses: actions-rs/toolchain@v1
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with:
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toolchain: nightly
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override: true
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# `cargo check` command here will use installed `nightly`
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# as it set as an "override" for current directory
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- name: Run cargo check
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uses: actions-rs/cargo@v1
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with:
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command: check
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```
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See [additional recipes here](https://github.com/actions-rs/meta).
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## Inputs
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* `toolchain` (*required*): Toolchain name, see [rustup page](https://github.com/rust-lang/rustup.rs#toolchain-specification) for details.\
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Examples: `stable`, `nightly`, `nightly-2019-04-20`
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* `target`: Additionally install specific target for this toolchain (ex. `x86_64-apple-darwin`)
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* `default`: Set installed toolchain as default (executes `rustup toolchain default {toolchain}`)
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* `override`: Set installed toolchain as an override for current directory
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## Components
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If you are going to install `clippy`, `rustfmt` or any other [rustup component](https://rust-lang.github.io/rustup-components-history/),
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it might not be available in latest `nightly` build;
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check out the [`actions-rs/components-nightly`](https://github.com/actions-rs/components-nightly) Action,
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which makes this process much easier.
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## Notes
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As `rustup` is not installed by default for [macOS environments](https://help.github.com/en/articles/virtual-environments-for-github-actions)
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at the moment (2019-09-13), this Action will try its best to install it before any other operations.
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