name: Prepare Rust
description: Prepare an environment to build or test rust packages

inputs:
  targets:
    description: "Targets to add to rustup, comma separated"
    required: false
    default: ''

runs:
  using: "composite"
  steps:
    -
      name: Fetch rust cache
      id: cache
      uses: https://github.com/actions/cache/restore@v4
      with:
        path: |
          ~/.cargo/bin
          ~/.cargo/registry/index
          ~/.cargo/registry/cache
          ~/.cargo/git/db
          ~/.rustup
          target/
        key: rust-${{ inputs.targets }}-${{ hashFiles('Cargo.toml') }}-${{ hashFiles('Cargo.lock')}}
    -
      name: Install rustup and rust
      if: steps.cache.outputs.cache-hit != 'true'
      uses: https://github.com/dtolnay/rust-toolchain@1.75.0
      with:
        components: clippy
        targets: x86_64-unknown-linux-musl,armv7-unknown-linux-musleabihf,aarch64-unknown-linux-musl
    -
      name: Install cargo-binstall
      if: steps.cache.outputs.cache-hit != 'true'
      uses: https://github.com/taiki-e/install-action@v2
      with:
        tool: cargo-binstall
    -
      name: Install cargo-zigbuild
      run: yes | cargo binstall cargo-zigbuild
    -
      name: Fetch dependencies
      if: steps.cache.outputs.cache-hit != 'true'
      run: cargo fetch
    -
      name: Export path
      if: steps.cache.outputs.cache-hit == 'true'
      run: |
        export PATH=$PATH:$HOME/.cargo/bin
        export PATH=$PATH:$HOME/.rustup/bin
    -
      name: Populate rust cache
      uses: https://github.com/actions/cache/restore@v4
      if: steps.cache.outputs.cache-hit != 'true'
      with:
        path: |
          ~/.cargo/bin
          ~/.cargo/registry/index
          ~/.cargo/registry/cache
          ~/.cargo/git/db
          ~/.rustup
          target/
        key: ${{ steps.cache.outputs.cache-primary-key }}