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https://github.com/dtolnay/rust-toolchain

Concise GitHub Action for installing a Rust toolchain
https://github.com/dtolnay/rust-toolchain

Last synced: 3 months ago
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Concise GitHub Action for installing a Rust toolchain

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# Install Rust Toolchain

This GitHub Action installs a Rust toolchain using rustup. It is designed for
one-line concise usage and good defaults.


## Example workflow

```yaml
name: test suite
on: [push, pull_request]

jobs:
test:
name: cargo test
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: dtolnay/rust-toolchain@stable
- run: cargo test --all-features
```

The selection of Rust toolchain is made based on the particular @rev of this
Action being requested. For example "dtolnay/rust-toolchain@nightly" pulls in
the nightly Rust toolchain, while "dtolnay/[email protected]" pulls in
1.42.0.


## Inputs

All inputs are optional.

Name
Description

toolchain

Rustup toolchain specifier e.g. stable, nightly, 1.42.0, nightly-2022-01-01.
Important: the default is to match the @rev as described above.
When passing an explicit toolchain as an input instead of @rev, you'll want to use "dtolnay/rust-toolchain@master" as the revision of the action.

targets
Comma-separated string of additional targets to install e.g. wasm32-unknown-unknown

components
Comma-separated string of additional components to install e.g. clippy, rustfmt


## Outputs

Name
Description

cachekey
A short hash of the installed rustc version, appropriate for use as a cache key. "20220627a831"

name
Rustup's name for the selected version of the toolchain, like "1.62.0". Suitable for use with cargo +${{steps.toolchain.outputs.name}}.


## Toolchain expressions

The following forms are available for projects that use a sliding window of
compiler support.

```yaml
# Installs the most recent stable toolchain as of the specified time
# offset, which may be written in years, months, weeks, or days.
- uses: dtolnay/rust-toolchain@master
with:
toolchain: stable 18 months ago
```

```yaml
# Installs the stable toolchain which preceded the most recent one by
# the specified number of minor versions.
- uses: dtolnay/rust-toolchain@master
with:
toolchain: stable minus 8 releases
```


## License

The scripts and documentation in this project are released under the [MIT
License].

[MIT License]: LICENSE