|
| 1 | +name: Check Generated Code |
| 2 | +on: |
| 3 | + pull_request: |
| 4 | + branches: [main] |
| 5 | + |
| 6 | +permissions: |
| 7 | + contents: read |
| 8 | + |
| 9 | +concurrency: |
| 10 | + group: ${{ github.workflow }}-${{ github.ref }} |
| 11 | + cancel-in-progress: true |
| 12 | + |
| 13 | +jobs: |
| 14 | + generate-check: |
| 15 | + strategy: |
| 16 | + fail-fast: false |
| 17 | + matrix: |
| 18 | + include: |
| 19 | + - arch: amd64 |
| 20 | + runner: ubuntu-latest |
| 21 | + - arch: arm64 |
| 22 | + runner: ubuntu-24.04-arm |
| 23 | + name: Generate (${{ matrix.arch }}) |
| 24 | + runs-on: ${{ matrix.runner }} |
| 25 | + timeout-minutes: 15 |
| 26 | + steps: |
| 27 | + - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2 |
| 28 | + |
| 29 | + - uses: actions/setup-go@4b73464bb391d4059bd26b0524d20df3927bd417 # v6.3.0 |
| 30 | + with: |
| 31 | + go-version-file: go.mod |
| 32 | + |
| 33 | + - name: Install BPF build dependencies |
| 34 | + run: | |
| 35 | + sudo apt-get update -qq |
| 36 | + sudo apt-get install -y --no-install-recommends clang llvm lld libbpf-dev linux-headers-$(uname -r) |
| 37 | + sudo apt-get install -y --no-install-recommends linux-tools-$(uname -r) linux-tools-common || true |
| 38 | +
|
| 39 | + - name: Run make generate for ${{ matrix.arch }} |
| 40 | + run: | |
| 41 | + # Generate BPF objects and Go bindings for this runner's native arch only, |
| 42 | + # then run the remaining (non-BPF) generators. |
| 43 | + GOARCH=${{ matrix.arch }} go generate ./pkg/plugin/... |
| 44 | + go generate ./... |
| 45 | +
|
| 46 | + - name: Check for uncommitted changes |
| 47 | + run: | |
| 48 | + # Ignore .o files — they are empty stubs in the repo and get |
| 49 | + # populated with real BPF objects during generate. Only the |
| 50 | + # generated .go files matter for correctness. |
| 51 | + git diff --exit-code -- ':!*.o' || { |
| 52 | + echo "" |
| 53 | + echo "============================================================" |
| 54 | + echo "ERROR: Generated code is out of date." |
| 55 | + echo "" |
| 56 | + echo "The following files differ after running 'make generate':" |
| 57 | + git diff --name-only -- ':!*.o' |
| 58 | + echo "" |
| 59 | + echo "Please run 'make generate' locally and commit the changes." |
| 60 | + echo "============================================================" |
| 61 | + exit 1 |
| 62 | + } |
| 63 | +
|
| 64 | + - name: Check for untracked generated files |
| 65 | + run: | |
| 66 | + untracked=$(git ls-files --others --exclude-standard -- '*.go' | head -20) |
| 67 | + if [ -n "$untracked" ]; then |
| 68 | + echo "" |
| 69 | + echo "============================================================" |
| 70 | + echo "ERROR: New generated files are not committed." |
| 71 | + echo "" |
| 72 | + echo "$untracked" |
| 73 | + echo "" |
| 74 | + echo "Please run 'make generate' locally and commit the new files." |
| 75 | + echo "============================================================" |
| 76 | + exit 1 |
| 77 | + fi |
| 78 | +
|
| 79 | + - name: Check that committed .o files are empty stubs |
| 80 | + run: | |
| 81 | + # Tracked .o files must be empty (0 bytes). They exist so that |
| 82 | + # Go source files with //go:embed or bpf2go references compile |
| 83 | + # without running go generate first. Real BPF objects are built |
| 84 | + # at image build time — committing non-empty .o files bloats |
| 85 | + # the repo and may contain host-specific binaries. |
| 86 | + non_empty=$(git ls-files '*.o' | xargs -I{} sh -c 'test -s "{}" && echo "{}"') |
| 87 | + if [ -n "$non_empty" ]; then |
| 88 | + echo "" |
| 89 | + echo "============================================================" |
| 90 | + echo "ERROR: The following .o files must be empty stubs (0 bytes)." |
| 91 | + echo "" |
| 92 | + echo "$non_empty" |
| 93 | + echo "" |
| 94 | + echo "Run 'make empty-bpf-objects' to truncate them, then commit." |
| 95 | + echo "============================================================" |
| 96 | + exit 1 |
| 97 | + fi |
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