pull_request.yml

name: Build and Test

on:
  push:
    branches: [ master ]
  pull_request:

concurrency:
  # In master we want to run for every commit, in other branches — only for the last one
  group: ${{
    ( github.ref == 'refs/heads/master' &&
    format('{0}/{1}/{2}', github.workflow, github.ref, github.sha) )
    ||
    format('{0}/{1}', github.workflow, github.ref) }}
  cancel-in-progress: true

env:
  CAA_ARTIFACT_NAME: circuits-and-assignments
  TO_ARTIFACT_NAME: transpiler-output
  INTEGRATION_TESTING_TARGETS: |
    arithmetics_cpp_example
    polynomial_cpp_example
    poseidon_cpp_example
    merkle_tree_poseidon_cpp_example
    uint_remainder_cpp
    compare_eq_cpp
    private_input_cpp
  # uint_shift_left
  # uint_bit_decomposition
  # uint_bit_composition

jobs:
  handle-syncwith:
    if: github.event_name == 'pull_request'
    name: Call Reusable SyncWith Handler
    uses: NilFoundation/ci-cd/.github/workflows/reusable-handle-syncwith.yml@v1.1.2
    with:
      ci-cd-ref: 'v1.1.2'
    secrets: inherit


  prepare-targets:
    name: Prepare targets strings
    runs-on: ubuntu-22.04
    if: |
      always() && !cancelled()
    outputs:
      evm-targets: ${{ steps.get-targets.outputs.evm-targets }}
      prover-targets: ${{ steps.get-targets.outputs.prover-targets }}
    steps:
      - name: Set targets for integration testing
        id: get-targets
        run: |
          targets_str=$(echo "${{ env.INTEGRATION_TESTING_TARGETS }}" | awk 'NF {print "transpiler_output_" $1}')
          echo "evm-targets<<EOF" >> $GITHUB_OUTPUT
          echo "${targets_str}" >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT

          echo "prover-targets<<EOF" >> $GITHUB_OUTPUT
          echo "${{ env.INTEGRATION_TESTING_TARGETS }}" >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT


  get-zkllvm-run:
    name: Get zkLLVM run to use artifacts from
    needs:
      - handle-syncwith
    if: |
      always() && !cancelled() &&
      (needs.handle-syncwith.result == 'success' || needs.handle-syncwith.result == 'skipped')
    runs-on: ubuntu-22.04
    outputs:
      run-id: ${{ steps.get-run-id.outputs.run-id }}
    steps:
      - name: Get run ID of zkLLVM
        id: get-run-id
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          prs_refs="${{ needs.handle-syncwith.outputs.prs-refs }}"
          zkllvm_ref="master"
          zkllvm_repo="NilFoundation/zkLLVM"

          while read -r line; do
            echo "$line"
            if [[ $line == "${zkllvm_repo}:"* ]]; then
              zkllvm_ref=$(echo "$line" | cut -d ' ' -f 2)
              break
            fi
          done <<< "$prs_refs"

          if [[ $zkllvm_ref == refs/pull/* ]]; then
            echo "Considering reference ${zkllvm_ref} a pr ref"
            pr_number=${zkllvm_ref#refs/pull/}
            pr_number=${pr_number%/merge}
            sha=$(gh api repos/${zkllvm_repo}/pulls/$pr_number --jq '.head.sha')
          elif [[ $zkllvm_ref == refs/tags/* ]]; then
            echo "Considering reference ${zkllvm_ref} a tag"
            tag=${zkllvm_ref#refs/tags/}
            sha=$(gh api repos/${zkllvm_repo}/git/ref/tags/$tag --jq '.object.sha')
          else
            echo "Considering reference ${zkllvm_ref} a branch"
            branch=${zkllvm_ref#refs/heads/}
            # We can already fetch run_id here, but better fit to common approach with extra query by sha
            sha=$(gh api "repos/${zkllvm_repo}/actions/workflows/nix_build_linux.yml/runs?branch=${branch}&status=completed&per_page=1" \
              --jq '.workflow_runs[0].head_sha')
          fi

          echo "Using head sha: ${sha}"
          run_id=$(gh api "repos/${zkllvm_repo}/actions/workflows/nix_build_linux.yml/runs?head_sha=${sha}&status=completed&per_page=1" \
              --jq '.workflow_runs[0].id')
          if [ -z "${run_id}" ]; then
            echo no run ID fetched
            exit 1
          fi
          echo "Run ID: ${run_id}"
          for artifact in "${{ env.CAA_ARTIFACT_NAME }}" "${{ env.TO_ARTIFACT_NAME }}"; do
              # Check if the artifact exists in the run
              if ! gh run view ${run_id} --repo ${zkllvm_repo} | grep "$artifact"; then
                  echo "Artifact '$artifact' not found in run ${run_id}"
                  exit 1
              fi
          done
          echo "run-id=${run_id}" >> $GITHUB_OUTPUT

  build-and-generate-proofs:
    name: Build prover, generate proofs for circuits
    runs-on: [self-hosted, Linux, X64, aws_autoscaling]
    needs:
      - handle-syncwith
      - get-zkllvm-run
      - prepare-targets
    if: |
      always() && !cancelled() &&
      (needs.handle-syncwith.result == 'success' || needs.handle-syncwith.result == 'skipped') &&
      (needs.get-zkllvm-run.result == 'success' || needs.get-zkllvm-run.result == 'skipped') &&
      (needs.prepare-targets.result == 'success' || needs.prepare-targets.result == 'skipped')
    outputs:
      artifact-name: ${{ steps.artifact-name.outputs.merged }}

    steps:
      # https://github.com/actions/checkout/issues/1552
      - name: Clean up after previous checkout
        run: chmod +w -R ${GITHUB_WORKSPACE}; rm -rf ${GITHUB_WORKSPACE}/*;

      - name: Checkout Proof Producer
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          submodules: recursive

      - name: Checkout submodules to specified refs
        if: inputs.submodules-refs != ''
        uses: NilFoundation/ci-cd/actions/recursive-checkout@v1.2.1
        with:
          refs: ${{ needs.handle-syncwith.outputs.prs-refs }}
          paths: |
            ${{ github.workspace }}/**
            !${{ github.workspace }}/
            !${{ github.workspace }}/**/.git/**

      - name: Run checks
        run: nix -L build '.?submodules=1#'
        env:
          NIX_CONFIG: |
            cores = 2
            max-jobs = 1

      - name: Set usefull strings
        id: strings
        run: |
          echo "artifact-dir=$(realpath ${{ github.workspace }}/../artifacts)" >> $GITHUB_OUTPUT

      - name: Download circuits and assignments artifact
        uses: dawidd6/action-download-artifact@v3
        with:
          repo: NilFoundation/zkLLVM
          name: ${{ env.CAA_ARTIFACT_NAME }}
          path: ${{ steps.strings.outputs.artifact-dir }}
          run_id: ${{ needs.get-zkllvm-run.outputs.run-id }}
          github_token: ${{ secrets.GITHUB_TOKEN }}
          skip_unpack: true  # It can't unpack such large files (>2Gb for some circuits)

      - name: Extract circuits and assignments artifact
        working-directory: ${{ steps.strings.outputs.artifact-dir }}
        run: |
          unzip ${{ env.CAA_ARTIFACT_NAME }}.zip

      - name: List artifacts
        working-directory: ${{ steps.strings.outputs.artifact-dir }}
        run: find .

      - name: Make proofs for pairs
        working-directory: ${{ steps.strings.outputs.artifact-dir }}
        run: |
          extra_args=""
          if [[ "true" == "true" ]]; then
            extra_args="--multithreaded "
          fi
          targets_str=$(echo "${{ needs.prepare-targets.outputs.prover-targets }}" | awk '{$1=$1};1' | sed '/^$/d' | tr '\n' ' ' | sed 's/ $//')
          echo "targets from input: ${targets_str}"
          ${{ github.workspace }}/tests/make_proof_for_pairs.sh --use-nix ${extra_args} ${targets_str}

      - name: Download transpiler output artifact
        id: download-to-artifact
        uses: dawidd6/action-download-artifact@v3
        with:
          repo: NilFoundation/zkLLVM
          name: ${{ env.TO_ARTIFACT_NAME }}
          path: ${{ steps.strings.outputs.artifact-dir }}
          run_id: ${{ needs.get-zkllvm-run.outputs.run-id }}
          github_token: ${{ secrets.GITHUB_TOKEN }}

      - name: Merge proofs into transpiler output
        working-directory: ${{ steps.strings.outputs.artifact-dir }}
        run: |
          copy_failed=0
          while read dir; do
            base_name=${dir#./transpiler_output_}

            if [[ -d "$base_name" ]]; then
              if ! cp "${base_name}/proof.bin" "${dir}/"; then
                # fails if artifact contains dirs targets we didn't produce proofs for
                echo "Failed to copy proof.bin to ${dir}" >&2
                copy_failed=1
              else
                echo "proof.bin added to ${dir}"
              fi
            else
              echo "Error: No matching directory found for ${dir}" >&2
            fi
          done < <(find . -type d -name "transpiler_output_*")

          if [ $copy_failed -eq 1 ]; then
            echo "One or more copy operations failed." >&2
          fi

      - name: Set aritfact name
        id: artifact-name
        run: |
          echo "merged=transpiler-output-merged-proofs" >> $GITHUB_OUTPUT

      - name: Upload merged artifact
        uses: actions/upload-artifact@v3
        with:
          name: ${{ steps.artifact-name.outputs.merged }}
          path: |
            ${{ steps.strings.outputs.artifact-dir }}/transpiler_output_*

      # TODO: add package derivation to nix, upload its result
      # - name: Upload .deb package
      #   if: matrix.cpp-compiler == 'clang++' && matrix.build-type == 'Release'
      #   uses: actions/upload-artifact@v4
      #   with:
      #     name: proof-producer.deb
      #     path: |
      #        ${{ steps.strings.outputs.build-dir }}/proof-producer*.deb


  verify-proof-producer-proofs:
    name: Verify proof-producer proofs with EVM-placeholder
    needs:
      - handle-syncwith
      - build-and-generate-proofs
      - prepare-targets
    if: |
      always() && !cancelled() &&
      (needs.handle-syncwith.result == 'success' || needs.handle-syncwith.result == 'skipped') &&
      (needs.build-and-generate-proofs.result == 'success' || needs.build-and-generate-proofs.result == 'skipped') &&
      (needs.prepare-targets.result == 'success' || needs.prepare-targets.result == 'skipped')
    uses: NilFoundation/evm-placeholder-verification/.github/workflows/reusable-verify-proofs.yml@2a0ef5fc67e97be8e3c7b59338cf9eecd030c57d
    with:
      artifact-name: ${{ needs.build-and-generate-proofs.outputs.artifact-name }}
      evm-placeholder-verification-ref: 2a0ef5fc67e97be8e3c7b59338cf9eecd030c57d
      refs: ${{ needs.handle-syncwith.outputs.prs-refs }}
      test-names: ${{ needs.prepare-targets.outputs.evm-targets }}