build-nodes.yml

name: Build Substrate and Polkadot Binaries

on:
  # Allow it to be manually ran to rebuild binary when needed:
  workflow_dispatch: {}
  # Run at 2am every day for nightly builds.
  schedule:
    - cron: "0 2 * * *"

jobs:
  tests:
    name: Build Substrate and Polkadot Binaries
    runs-on: parity-large
    steps:
      - name: checkout polkadot-sdk
        uses: actions/checkout@v4
        with:
          repository: paritytech/polkadot-sdk

      - name: Install dependencies
        run: sudo apt-get update && sudo apt-get install -y protobuf-compiler curl gcc make clang cmake

      - name: Install Rust stable toolchain
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          components: rust-src
          target: wasm32-unknown-unknown

      - name: Rust Cache
        uses: Swatinem/rust-cache@82a92a6e8fbeee089604da2575dc567ae9ddeaab # v2.7.5

      - name: build substrate binary
        uses: actions-rs/cargo@v1
        with:
          command: build
          args: --release --manifest-path substrate/bin/node/cli/Cargo.toml

      - name: build polkadot binary
        uses: actions-rs/cargo@v1
        with:
          command: build
          args: --release --manifest-path polkadot/Cargo.toml

      - name: Strip binaries
        run: |
          cargo install cargo-strip
          cargo strip

      - name: upload substrate binary
        uses: actions/upload-artifact@v4
        with:
          name: nightly-substrate-binary
          path: target/release/substrate-node
          retention-days: 2
          if-no-files-found: error

      # Note: Uncompressed polkadot binary is ~124MB -> too large for git (max 100MB) without git lfs. Compressed it is only ~45MB
      - name: compress polkadot binary
        run: |
          tar -zcvf target/release/polkadot.tar.gz target/release/polkadot

      - name: upload polkadot binary
        uses: actions/upload-artifact@v4
        with:
          name: nightly-polkadot-binary
          path: |
            target/release/polkadot.tar.gz
            target/release/polkadot-execute-worker
            target/release/polkadot-prepare-worker
          retention-days: 2
          if-no-files-found: error