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https://github.com/actions-rs/toolchain.git
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107 lines
4.6 KiB
Markdown
107 lines
4.6 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 latest 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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| Name | Required | Description | Type | Default |
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| ------------ | :------: | ----------------------------------------------------------------------------------------------------------------------------------------------------| ------ | --------|
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| `toolchain` | ✓ | [Toolchain](https://github.com/rust-lang/rustup.rs#toolchain-specification) name to use, ex. `stable`, `nightly`, `nightly-2019-04-20`, or `1.32.0` | string | |
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| `target` | | Additionally install specified target for this toolchain, ex. `x86_64-apple-darwin` | string | |
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| `default` | | Set installed toolchain as a default toolchain | bool | false |
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| `override` | | Set installed toolchain as an override for the current directory | bool | false |
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| `profile` | | Execute `rustup set profile {value}` before installing the toolchain, ex. `minimal` | string | |
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| `components` | | Comma-separated list of the additional components to install, ex. `clippy, rustfmt` | string | |
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## Profiles
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This Action supports rustup [profiles](https://blog.rust-lang.org/2019/10/15/Rustup-1.20.0.html#profiles),
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which are can be used to speed up the workflow execution by installing the
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minimally required set of components, for example:
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```yaml
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- name: Install minimal nightly
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uses: actions-rs/toolchain@v1
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with:
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profile: minimal
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toolchain: nightly
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```
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This Action will automatically run `rustup self update` if `profile` input is set
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and the installed `rustup` version does not supports them.
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In order to provide backwards compatibility for `v1` version,
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there is no value for `profile` input set by default,
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which means that the `default` profile is used by `rustup`
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(and that includes `rust-docs`, `clippy` and `rustfmt`).\
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You may want to consider using `profile: minimal` to speed up toolchain installation.
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## Components
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This Action supports rustup [components](https://blog.rust-lang.org/2019/10/15/Rustup-1.20.0.html#installing-the-latest-compatible-nightly) too,
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and in combination with the [profiles](#profiles) input it allows to install only the needed components:
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```yaml
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- name: Install minimal stable with clippy and rustfmt
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uses: actions-rs/toolchain@v1
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with:
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profile: minimal
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toolchain: nightly
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components: rustfmt, clippy
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```
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As an extra perk, `rustup >= 1.20.0` is able to find the most recent `nightly` toolchain
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with the requested components available; next example is utilizing this feature
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to install the minimal set of `nightly` toolchain components with the `rustfmt` and `clippy` extras:
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```yaml
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- name: Install minimal nightly with clippy and rustfmt
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uses: actions-rs/toolchain@v1
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with:
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profile: minimal
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toolchain: nightly
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components: rustfmt, clippy
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```
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Same to the `profile` input, if the installed `rustup` does not supports "components",
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it will be automatically upgraded by this Action.
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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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