build-runtime.yaml

name: Build Deterministic Runtimes

on:
  release:
    types: [published]
  workflow_dispatch:

jobs:
  srtool:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    strategy:
      matrix:
        runtime: ["trappist", "stout"]
    steps:
      - name: Checkout sources
        uses: actions/checkout@v4

      - name: Cache runtime target dir
        uses: actions/cache@v4
        with:
          path: "${{ github.workspace }}/runtime/${{ matrix.runtime }}/target"
          key: srtool-target-${{ matrix.runtime }}-${{ github.sha }}
          restore-keys: |
            srtool-target-${{ matrix.runtime }}-
            srtool-target-

      - name: Build ${{ matrix.runtime }} runtime
        id: srtool_build
        uses: chevdor/srtool-actions@v0.9.2
        with:
          chain: ${{ matrix.runtime }}

      - name: Store srtool digest to disk
        run: |
          echo '${{ steps.srtool_build.outputs.json }}' | jq . > ${{ matrix.runtime }}-srtool-digest.json

      # Manual trigger: add artifacts to run
      - name: Copy artifacts
        if: github.event_name != 'release'
        run: cp `dirname ${{ steps.srtool_build.outputs.wasm }}`/*.wasm ./
      - name: Archive Runtime
        if: github.event_name != 'release'
        uses: actions/upload-artifact@v4
        with:
          name: ${{ matrix.runtime }}-runtime-${{ github.sha }}
          path: |
            ${{ matrix.chain }}*.wasm
            ${{ matrix.runtime }}-srtool-digest.json

      # Release published: add artifacts to release
      - name: Add artifacts to release
        if: github.event_name == 'release'
        uses: softprops/action-gh-release@v1
        with:
          append_body: true
          body: |
            ## Runtime: `${{ matrix.runtime }}`
            ```
            🏋️ Runtime Size:           ${{ fromJSON(steps.srtool_build.outputs.json).runtimes.compressed.subwasm.size }} bytes
            🔥 Core Version:           ${{ fromJSON(steps.srtool_build.outputs.json).runtimes.compressed.subwasm.core_version.specName }}-${{ fromJSON(steps.srtool_build.outputs.json).runtimes.compressed.subwasm.core_version.specVersion }}
            🎁 Metadata version:       V${{ fromJSON(steps.srtool_build.outputs.json).runtimes.compressed.subwasm.metadata_version }}
            🗳️ system.setCode hash:    ${{ fromJSON(steps.srtool_build.outputs.json).runtimes.compressed.subwasm.proposal_hash }}
            🗳️ authorizeUpgrade hash:  ${{ fromJSON(steps.srtool_build.outputs.json).runtimes.compressed.subwasm.parachain_authorize_upgrade_hash }}
            🗳️ Blake2-256 hash:        ${{ fromJSON(steps.srtool_build.outputs.json).runtimes.compressed.subwasm.blake2_256 }}
            📦 IPFS:                   ${{ fromJSON(steps.srtool_build.outputs.json).runtimes.compressed.subwasm.ipfs_hash }}
            ```
          files: |
            ${{ steps.srtool_build.outputs.wasm_compressed }}
            ${{ matrix.runtime }}-srtool-digest.json