name: publish

on:
  pull_request:
    branches:
    - main
  push:
    branches:
    - main

permissions:
  contents: read # Needed to checkout the repository.

concurrency:
  group: "${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}-${{ github.sha }}"
  cancel-in-progress: true

jobs:
  artifacts:
    name: artifacts
    permissions:
      contents: read # Needed to checkout the repository.
    runs-on: ubuntu-latest
    outputs:
      artifact-digest: "${{ steps.upload.outputs.artifact-digest }}"
    steps:
    - name: harden runner
      uses: step-security/harden-runner@e14015d583714f6e62063499dc959a02595150a1 # v2.21.1
      with:
        egress-policy: audit

    - name: checkout
      uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      with:
        persist-credentials: false

    - name: 'install rust toolchain'
      run: |
        cargo version

    - name: 'assemble artifacts'
      run: ./hack/assemble.sh

    - name: 'upload artifacts'
      id: upload
      uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
      with:
        name: artifacts
        path: target/assemble/*

  # Attestation runs in its own job so that pull requests, which run the build with
  # code from the pull request, never get the permissions needed to attest.
  attest:
    name: attest
    needs: artifacts
    if: github.event_name != 'pull_request'
    permissions:
      id-token: write # Needed for attestation.
      attestations: write # Needed for attestations.
    runs-on: ubuntu-latest
    steps:
    - name: harden runner
      uses: step-security/harden-runner@e14015d583714f6e62063499dc959a02595150a1 # v2.21.1
      with:
        egress-policy: audit

    - name: 'attest artifacts'
      uses: actions/attest-build-provenance@4d101475d8b20a2381f78447822ac1eab6504dd8 # v4.2.2
      with:
        subject-name: artifacts.zip
        subject-digest: "sha256:${{ needs.artifacts.outputs.artifact-digest }}"