name: "Upload provenance attestation to release"
description: "Download and upload newly generated provenance attestation to latest release."

# PROCESS
#
# 1. Downloads provenance attestation artifact generated earlier in the release pipeline
# 2. Updates latest GitHub draft release pointing to newly git release tag
# 3. Uploads provenance attestation file to latest GitHub draft release

# USAGE
#
# - name: Upload provenance
#   id: upload-provenance
#   uses: ./.github/actions/upload-release-provenance
#   with:
#     release_version: ${{ needs.seal.outputs.RELEASE_VERSION }}
#     provenance_name: ${{needs.provenance.outputs.provenance-name}}
#     github_token: ${{ secrets.GITHUB_TOKEN }}

# NOTES
#
# There are no outputs.
#

inputs:
  provenance_name:
    description: "Provenance artifact name to download"
    required: true
  release_version:
    description: "Release version (e.g., 2.20.0)"
    required: true
  github_token:
    description: "GitHub token for GitHub CLI"
    required: true

runs:
  using: "composite"
  steps:
    - id: adjust-path
      run: echo "${{ github.action_path }}" >> $GITHUB_PATH
      shell: bash

    - id: download-provenance
      name: Download newly generated provenance
      uses: actions/download-artifact@65a9edc5881444af0b9093a5e628f2fe47ea3b2e # v4.1.7
      with:
        name: ${{ inputs.provenance_name }}

    - id: sync-release-tag
      name: Update draft release tag to release commit tag
      run: |
        CURRENT_DRAFT_RELEASE=$(gh release list | awk '{ if ($2 == "Draft") print $1}')
        gh release edit "${CURRENT_DRAFT_RELEASE}" --tag v"${RELEASE_VERSION}"
      env:
        RELEASE_VERSION: ${{ inputs.release_version }}
        GH_TOKEN: ${{ inputs.github_token }}
      shell: bash

    - id: upload-provenance
      name: Upload provenance to release tag
      # clobber flag means overwrite release asset if available (eventual consistency, retried failed steps)
      run: gh release upload --clobber v"${RELEASE_VERSION}" "${PROVENANCE_FILE}"
      env:
        RELEASE_VERSION: ${{ inputs.release_version }}
        PROVENANCE_FILE: ${{ inputs.provenance_name }}
        GH_TOKEN: ${{ inputs.github_token }}
      shell: bash