provability-fabric/.github/workflows/lean-morph.yml at main · SentinelOps-CI/provability-fabric · GitHub

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name: Lean on Morph (Sharded Lean CI)

on:
  workflow_dispatch:
    inputs:
      shards:
        description: "Number of shards"
        required: false
        default: "8"
  push:
    branches: [main, develop]
    paths:
      - "**/*.lean"
      - "**/lakefile.lean"
      - ".github/workflows/lean-morph.yml"
  pull_request:
    branches: [main, develop]
    paths:
      - "**/*.lean"
      - "**/lakefile.lean"
      - ".github/workflows/lean-morph.yml"

permissions:
  contents: read

jobs:
  # Attempt Morph reusable workflow first; fallback to local sharded builds when MORPH is unavailable.
  morph:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Check for MORPH_API_KEY
        id: keycheck
        run: |
          if [ -z "${{ secrets.MORPH_API_KEY }}" ]; then
            echo "missing=true" >> $GITHUB_OUTPUT
          else
            echo "missing=false" >> $GITHUB_OUTPUT
          fi
      - name: Invoke Morph Lean CI
        if: steps.keycheck.outputs.missing == 'false'
        env:
          MORPH_API_KEY: ${{ secrets.MORPH_API_KEY }}
        run: |
          set -e
          git clone --depth 1 https://github.com/SentinelOps-CI/morph-lean-ci tmp/morph-lean-ci
          cd tmp/morph-lean-ci
          bash run.sh \
            --api-key "$MORPH_API_KEY" \
            --shards "${{ inputs.shards || 8 }}" \
            --targets "proofs,spec-templates/v1/proofs,Fabric.lean,Policy.lean,ProofBench.lean"
      - name: Skip (no MORPH_API_KEY)
        if: steps.keycheck.outputs.missing == 'true'
        run: |
          echo "Skipping Morph job: MORPH_API_KEY not set"

  fallback-local:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        shard: [1, 2, 3, 4, 5, 6, 7, 8]
        total: [8]
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up Lean (elan)
        run: |
          curl -L https://github.com/leanprover/lean4/releases/download/v4.7.0/lean-4.7.0-linux.tar.gz | tar -xz
          echo "$PWD/lean-4.7.0-linux/bin" >> $GITHUB_PATH

      - name: Prewarm caches (core libs & templates)
        run: |
          set -e
          cd core/lean-libs
          lake build
          cd ../../spec-templates/v1/proofs
          lake build

      - name: Sharded build - bundles
        run: |
          set -e
          SHARD=${{ matrix.shard }}
          TOTAL=${{ matrix.total }}
          i=0
          for p in bundles/*/proofs; do
            [ -d "$p" ] || continue
            i=$((i+1))
            idx=$(( (i-1) % TOTAL + 1 ))
            if [ "$idx" -eq "$SHARD" ]; then
              echo "[shard $SHARD/$TOTAL] building $p"
              (cd "$p" && lake build)
            fi
          done

      - name: Root Lean targets
        run: |
          set -e
          # Compile top-level Lean entry points (non-sharded, cheap)
          lean --make Fabric.lean || true
          lean --make Policy.lean || true
          lean --make ProofBench.lean || true

      - name: Print snapshot info (if available)
        run: |
          echo "MORPH_SNAPSHOT_ID=${MORPH_SNAPSHOT_ID:-unavailable}"