name: 'cargo-semver-checks'
description: 'Ensure the public API in your Rust crate follows semantic versioning'
branding:
  icon: 'check-circle'
  color: 'green'
inputs:
  crate-name:
    description: 'The crate whose API to check for semver. If not set, all crates in the workspace are processed.'
    required: false
    default: ''
  manifest-path:
    description: 'Path to Cargo.toml of crate or workspace to check. Has an effect only if crate-name is not specified.'
    required: false
    default: ''
  verbose:
    description: 'Enables verbose output of `cargo-semver-checks`.'
    type: boolean
    required: true
    default: false
runs:
  using: "composite"
  steps:
    - name: Install rust
      uses: actions-rs/toolchain@v1
      with:
        toolchain: stable
        profile: minimal
    - name: Check for semver violations
      shell: bash
      run: |
        set -euxo pipefail

        # Colorize output, since GitHub Actions terminals support color.
        export CARGO_TERM_COLOR=always

        export CRATE_NAME="${{ inputs.crate-name }}"
        export MANIFEST_PATH="${{ inputs.manifest-path }}"
        
        if [[ ${{ inputs.verbose }} == 'true' ]]; then
          export VERBOSE_FLAG="--verbose"
        else
          export VERBOSE_FLAG=""
        fi

        export SEMVER_CHECKS_OPTIONS="${CRATE_NAME:+"--package $CRATE_NAME"} ${MANIFEST_PATH:+"--manifest-path $MANIFEST_PATH"} $VERBOSE_FLAG"

        # Check for semver violations.
        cargo install cargo-semver-checks --locked
        cargo semver-checks check-release $SEMVER_CHECKS_OPTIONS