tcptop/.gitea/workflows/build.yml

name: Build & Package

# Build tcptop binary and produce .deb/.rpm packages
on:
  push:
    branches: ["*"]
    tags: ["v*"]

jobs:
  build:
    # NOTE: Adjust the runner label to match your Gitea runner configuration.
    # Common labels: "linux", "ubuntu-latest", "debian", or a custom label.
    runs-on: linux

    env:
      CARGO_TERM_COLOR: always
      # Ensure cargo binaries are on PATH for all steps
      PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:${{ runner.home }}/.cargo/bin

    steps:
      - name: Checkout code
        run: |
          # Clone the repo since this runner has no Node.js for actions/checkout.
          # GITEA_SERVER_URL and GITEA_REPOSITORY are set by the Gitea runner.
          git clone --depth=1 --branch="${GITHUB_REF_NAME}" \
            "${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}.git" .
        shell: bash

      - name: Install system dependencies
        run: |
          apt-get update
          apt-get install -y \
            build-essential \
            pkg-config \
            linux-headers-$(uname -r) \
            libelf-dev \
            clang \
            llvm \
            rpm
          # build-essential: gcc, make, etc. for native compilation
          # pkg-config: locates system libraries during cargo build
          # linux-headers: kernel headers for eBPF program compilation
          # libelf-dev: ELF parsing library required by eBPF toolchain
          # clang + llvm: LLVM backend used by bpf-linker to compile eBPF bytecode
          # rpm: needed by cargo-generate-rpm to build .rpm packages
        shell: bash

      - name: Install Rust toolchain
        run: |
          # Install rustup if not already present (bare runners may not have it)
          if ! command -v rustup &> /dev/null; then
            curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain none
            source "$HOME/.cargo/env"
          fi
          # rust-toolchain.toml in the repo root will auto-select the pinned
          # nightly (nightly-2026-03-20) with rust-src, rustfmt, clippy on
          # the first cargo invocation. Just verify it works:
          rustc --version
          cargo --version
        shell: bash

      - name: Install bpf-linker
        run: |
          # bpf-linker is the LLVM-based linker for eBPF object files.
          # Skip install if already cached.
          if ! command -v bpf-linker &> /dev/null; then
            cargo install bpf-linker
          fi
          bpf-linker --version || true
        shell: bash

      - name: Install packaging tools
        run: |
          # cargo-deb: builds Debian .deb packages from Cargo metadata
          # cargo-generate-rpm: builds RPM packages from Cargo metadata
          if ! command -v cargo-deb &> /dev/null; then
            cargo install cargo-deb
          fi
          if ! command -v cargo-generate-rpm &> /dev/null; then
            cargo install cargo-generate-rpm
          fi
        shell: bash

      - name: Build release binary
        run: |
          # build.rs in the tcptop crate auto-compiles the tcptop-ebpf
          # program via aya-build before linking the userspace binary.
          cargo build --release -p tcptop
        shell: bash

      - name: Build .deb package
        run: |
          # --no-build: binary already compiled in the previous step
          cargo deb -p tcptop --no-build
        shell: bash

      - name: Build .rpm package
        run: |
          cargo generate-rpm -p tcptop
        shell: bash

      - name: List built packages
        run: |
          echo "=== Built packages ==="
          ls -lh target/debian/tcptop_*.deb
          ls -lh target/generate-rpm/tcptop-*.rpm
        shell: bash

      # TODO: Add artifact upload action when available on your Gitea instance.
      # Example (if using a compatible action):
      #
      # - name: Upload packages
      #   uses: actions/upload-artifact@v3
      #   with:
      #     name: tcptop-packages
      #     path: |
      #       target/debian/tcptop_*.deb
      #       target/generate-rpm/tcptop-*.rpm