name: cached-rust
description: Installs Rust, caching ~/.cargo and ./target

inputs:
  toolchain:
    description: "Toolchain to install"
    required: false
    default: stable

  components:
    description: "Components to install"
    required: false
    default:

runs:
  using: "composite"
  steps:
    - name: Rust Cache
      uses: actions/cache@v3
      with:
        path: |
          ~/.cargo/registry
          ~/.cargo/git
          ./target
        key: ${{ runner.os }}-${{ runner.arch }}-rust-${{ steps.install-rust.outputs.rustc_hash }}-${{ hashFiles("**/Cargo.lock") }}
        restore-keys: ${{ runner.os }}-${{ runner.arch }}-rust-${{ steps.install-rust.outputs.rustc_hash }}-

    - name: Install Rust
      uses: actions-rs/toolchain@v1
      with:
        toolchain: ${{ inputs.toolchain }}
        profile: minimal
        default: true
        components: ${{ inputs.components }}