name: 'Install SBOM Tools'
description: 'Installs Trivy and CycloneDX CLI to ~/.local/bin with caching, adds them to PATH'
author: 'janhouse'

inputs:
  trivy-version:
    description: 'Trivy release tag (e.g. v0.70.0). Defaults to ${{ vars.TRIVY_VERSION }} via the caller workflow env.'
    required: true
  cyclonedx-version:
    description: 'CycloneDX CLI release tag (e.g. v0.27.1). Defaults to ${{ vars.CYCLONEDX_CLI_VERSION }} via the caller workflow env.'
    required: true

runs:
  using: composite
  steps:
    - name: Cache SBOM tools
      id: cache-tools
      uses: actions/cache@v4
      with:
        path: ~/.local/bin
        key: sbom-tools-${{ runner.os }}-trivy-${{ inputs.trivy-version }}-cyclonedx-${{ inputs.cyclonedx-version }}

    - name: Install Trivy
      if: steps.cache-tools.outputs.cache-hit != 'true'
      shell: bash
      env:
        TRIVY_VERSION: ${{ inputs.trivy-version }}
      run: |
        mkdir -p ~/.local/bin
        curl -sSfL "https://raw.githubusercontent.com/aquasecurity/trivy/${TRIVY_VERSION}/contrib/install.sh" | sh -s -- -b ~/.local/bin "${TRIVY_VERSION}"

    - name: Install CycloneDX CLI
      if: steps.cache-tools.outputs.cache-hit != 'true'
      shell: bash
      env:
        CYCLONEDX_CLI_VERSION: ${{ inputs.cyclonedx-version }}
      run: |
        curl -sSfL "https://github.com/CycloneDX/cyclonedx-cli/releases/download/${CYCLONEDX_CLI_VERSION}/cyclonedx-linux-x64" -o ~/.local/bin/cyclonedx-cli
        chmod +x ~/.local/bin/cyclonedx-cli

    - name: Add tools to PATH
      shell: bash
      run: echo "$HOME/.local/bin" >> "$GITHUB_PATH"