runtime-snapshot-build.yml

# This action enabling building WASM runtime used for forkless runtime upgrades, can be triggered manually or by
# release creation.
#
# WASM bundles are built both for releases and for manually triggered runs, uploaded to artifacts and assets.
name: Runtime snapshot build

on:
  workflow_dispatch:
  push:
    tags:
      - "runtime-snapshot-*"
      - "runtime-gemini-*"

jobs:
  runtime:
    runs-on: ${{ fromJson(github.repository_owner == 'subspace' && '["self-hosted", "ubuntu-20.04-x86-64"]' || 'ubuntu-22.04') }}
    permissions:
      contents: write
      packages: write

    steps:
      - name: Checkout
        uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # @v3.1.0

      - name: Build runtime
        id: build
        uses: docker/build-push-action@c56af957549030174b10d6867f20e78cfd7debc5 # @v3.2.0
        with:
          file: Dockerfile-runtime
          push: false

      - name: Extract runtime
        run: |
          SPEC_VERSION=$(sed -nr 's/.*spec_version: ([0-9]+),/\1/p' crates/subspace-runtime/src/lib.rs)
          docker run --rm -u root ${{ steps.build.outputs.digest }} > subspace_runtime-$SPEC_VERSION.compact.compressed.wasm
          echo "SPEC_VERSION=$SPEC_VERSION" >> $GITHUB_ENV

      - name: Upload runtime to artifacts
        uses: actions/upload-artifact@83fd05a356d7e2593de66fc9913b3002723633cb # @v3.1.1
        with:
          name: subspace_runtime
          path: |
            subspace_runtime-${{ env.SPEC_VERSION }}.compact.compressed.wasm
          if-no-files-found: error

      - name: Upload runtime to assets
        uses: alexellis/upload-assets@259de5111cb56966d046ced998941e93f91d2c93 # @0.4.0
        env:
          GITHUB_TOKEN: ${{ github.token }}
        with:
          asset_paths: '["subspace_runtime-${{ env.SPEC_VERSION }}.compact.compressed.wasm"]'
        # Only run for releases
        if: github.event_name == 'push' && github.ref_type == 'tag'