`xtensa-toolchain` Action

An action which installs the Rust compiler fork with Xtensa support, as well as the required toolchain binaries.

The Rust compiler fork with Xtensa support can be found at esp-rs/rust. Pre-built binaries can be found at esp-rs/rust-build, and we install these using esp-rs/espup.

Example workflow

name: CI

on: [push]

# Since `espup` queries the GitHub API, we strongly recommend you provide this
# action with an API token to avoid transient errors.
env:
  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

jobs:
  check:
    name: Rust project
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Install Rust for Xtensa
        uses: esp-rs/xtensa-toolchain@v1.5
        with:
          default: true
          version: "1.66.0"
          ldproxy: true

      # `cargo check` command here will use installed `esp` toolchain, as it
      # has been set as the default above

      - name: Run cargo check
        uses: actions-rs/cargo@v1
        with:
          command: check

Inputs

This action can be configured in various ways using its inputs:

Name	Description	Type	Default
`default`	Set installed toolchain as a default toolchain	bool	`false`
`buildtargets`	Comma separated list of targets	string	all
`version`	Which version of the toolchain to install	string	latest
`ldproxy`	Whether to install `ldproxy` (required for `std`)	bool	`true`
`override`	Overrides the installed toolchain	bool	`true`

All inputs are optional; if no inputs are provided:

the Rust compiler fork with Xtensa support will NOT be set as the default (but is usable via the +esp toolchain specifier)
all available build targets will be installed
the latest available version of the compiler will be installed
ldproxy WILL be installed; this is required for std
the Rust compiler fork with Xtensa support WILL be set as the override toolchain

Environment

This action uses espup, which calls GitHub API during the installation process. [GitHub API has a low rate limit] for non-authenticated users, and this can lead to transient errors. See #15 for details.

So, we recommend defining GITHUB_TOKEN, as seen in the example workflow, which increases the rate limit to 1000.

License

Licensed under either of:

Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.