mirror of
https://github.com/actions-rs/toolchain.git
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169 lines
7.3 KiB
Markdown
169 lines
7.3 KiB
Markdown
# `rust-toolchain` Action
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[](https://actions-rs.github.io/#sponsoring)
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[](https://gitter.im/actions-rs/community)
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This GitHub Action installs [Rust toolchain](https://rust-lang.github.io/rustup/concepts/toolchains.html#toolchain-specification)
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with [rustup](https://github.com/rust-lang/rustup) help.
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It supports additional targets, components and profiles and handles all
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these small papercuts for you.
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**Table of Contents**
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* [Example workflow](#example-workflow)
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* [Inputs](#inputs)
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* [Outputs](#outputs)
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* [Profiles](#profiles)
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* [Components](#components)
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* [The toolchain file](#the-toolchain-file)
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* [License](#license)
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* [Contribute and support](#contribute-and-support)
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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@v2
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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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components: rustfmt, clippy
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# `cargo check` command here will use installed `nightly`
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# as it is 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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Note: since `v1.0.4` version, `toolchain` input is not marked as required
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in order to support toolchain files. See the details [below](#the-toolchain-file).
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## Outputs
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Installed `rustc`, `cargo` and `rustup` versions can be fetched from the Action outputs:
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| Name | Description | Example |
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| ------------ | --------------------- | ------------------------------- |
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| `rustc` | Rustc version | `1.40.0 (73528e339 2019-12-16)` |
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| `rustc_hash` | Rustc version hash | `73528e339` |
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| `cargo` | Cargo version | `1.40.0 (bc8e4c8be 2019-11-22)` |
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| `rustup` | rustup version | `1.21.1 (7832b2ebe 2019-12-20)` |
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Note: `rustc-hash` output value can be used with [actions/cache](https://github.com/actions/cache) Action
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to store cache for different Rust versions, as it is unique across different Rust versions and builds (including `nightly`).
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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: stable
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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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In case if `nightly` toolchain is requested and one of the components is missing in
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latest `nightly` release, this Action will attempt the downgrade till it find
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the most recent `nightly` with all components needed.\
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Note that this behavior will work only if the following two conditions apply:
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1. `toolchain` input is `nightly` exactly.
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2. At least one component is provided in `components` input.
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Same to the `profile` input, if installed `rustup` does not supports "components",
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it will be automatically upgraded by this Action.
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## The toolchain file
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This Action supports [toolchain files](https://rust-lang.github.io/rustup/overrides.html#the-toolchain-file),
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so it is not necessary to use `toolchain` input anymore.
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Input has higher priority, so if you are want to use toolchain file,
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you need to remove the input from the workflow file.
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If neither `toolchain` input or `rust-toolchain` file are provided,
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Action execution will fail.
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## License
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This Action is distributed under the terms of the MIT license, see [LICENSE](https://github.com/actions-rs/toolchain/blob/master/LICENSE) for details.
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## Contribute and support
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Any contributions are welcomed!
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If you want to report a bug or have a feature request,
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check the [Contributing guide](https://github.com/actions-rs/.github/blob/master/CONTRIBUTING.md).
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You can also support author by funding the ongoing project work,
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see [Sponsoring](https://actions-rs.github.io/#sponsoring).
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