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Artifact [7b817b4a7c]

Check-ins Using Download Hex

Artifact 7b817b4a7c230e3f351a112a83c0cad98db79add99264a07549cab8d499120f9:

name: ci

# Every push on every branch, plus pull requests. Deliberately unfiltered: the
# 0.1.0 release is developed on `release-0.1`, and a default-branch-only gate
# would leave the entire release unverified until the merge that is supposed to
# be the safe part.
on:
  push:
  pull_request:

# Least privilege: the battery only reads the checkout. Without an explicit
# block the job inherits whatever the repo/org default grants, which is
# read/write on many configurations.
permissions:
  contents: read

# Unfiltered `push:` plus `pull_request:` means a PR branch runs the whole
# battery twice per push. Superseded runs are cancelled rather than left to
# finish against a commit nobody is waiting on.
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

# One release gate across the native macOS/ARM64 and Linux x86-64/ARM64
# platforms. Each label set is intentionally precise: Linux legs remain queued
# until the corresponding self-hosted runner is registered; they never fall
# back to a hosted or arbitrary self-hosted machine.
jobs:
  battery:
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: macOS
            arch: ARM64
            runner: mac-mini-zit
            zig_target: aarch64-macos
            zig_shasum: b23d70deaa879b5c2d486ed3316f7eaa53e84acf6fc9cc747de152450d401489
          - os: Linux
            arch: X64
            runner: linux-x64-zit
            zig_target: x86_64-linux
            zig_shasum: 70e49664a74374b48b51e6f3fdfbf437f6395d42509050588bd49abe52ba3d00
          - os: Linux
            arch: ARM64
            runner: linux-arm64-zit
            zig_target: aarch64-linux
            zig_shasum: ea4b09bfb22ec6f6c6ceac57ab63efb6b46e17ab08d21f69f3a48b38e1534f17
    runs-on: [self-hosted, "${{ matrix.os }}", "${{ matrix.arch }}", "${{ matrix.runner }}"]
    # An explicit ceiling, per the bounded-waits rule: every wait needs an
    # interval and a timeout. Without this the job inherits GitHub's 360-minute
    # default, so a hang — most plausibly smoke's spawned server never exiting —
    # turns a red gate into a six-hour silent stall instead of a failure.
    timeout-minutes: 20
    env:
      # Kept in lockstep with src/ci_test.zig's `pinned_zig_version` and
      # `pinned_zig_shasums`, which fail `zig build test` if this file drifts.
      # These are the target-specific published digests from
      # ziglang.org/download/index.json.
      ZIG_VERSION: 0.16.0
      ZIG_TARGET: ${{ matrix.zig_target }}
      ZIG_SHASUM: ${{ matrix.zig_shasum }}
    steps:
      - uses: actions/checkout@v5

      # smoke drives the real fossil binary — it is the only step that proves
      # the conformance claim against the reference implementation rather than
      # against our own reading of the RFCs. Fossil is provisioned by each
      # self-hosted runner image, so print the actual version used by the gate.
      - name: Verify fossil
        run: |
          set -euo pipefail
          command -v fossil >/dev/null 2>&1 || {
            echo "fossil is not installed on this runner; smoke cannot run." >&2
            echo "provision fossil in this self-hosted runner image." >&2
            exit 1
          }
          fossil version

      # Installed by hand rather than through a setup action: the toolchain is
      # one tarball, the URL is stable, and verifying the published digest here
      # is both simpler and stronger than trusting a third-party action to pin
      # the same thing. `sha256sum` is standard on Linux; macOS supplies
      # `shasum`, so select the available native checksum tool.
      - name: Install Zig ${{ env.ZIG_VERSION }}
        run: |
          set -euo pipefail
          tarball="zig-${ZIG_TARGET}-${ZIG_VERSION}.tar.xz"
          curl -fsSL -o "$tarball" "https://ziglang.org/download/${ZIG_VERSION}/${tarball}"
          if command -v sha256sum >/dev/null 2>&1; then
            actual="$(sha256sum "$tarball" | awk '{print $1}')"
          else
            actual="$(shasum -a 256 "$tarball" | awk '{print $1}')"
          fi
          if [ "$actual" != "${ZIG_SHASUM}" ]; then
            echo "zig tarball digest mismatch: expected ${ZIG_SHASUM}, got ${actual}" >&2
            exit 1
          fi
          tar -xf "$tarball"
          echo "${GITHUB_WORKSPACE}/zig-${ZIG_TARGET}-${ZIG_VERSION}" >> "$GITHUB_PATH"

      - name: Zig version
        run: zig version

      # `--check build.zig src` rather than `--check .`: the bare dot walks
      # .zig-cache/ and zig-out/, whose generated sources are not ours to
      # format. Naming the source roots keeps the check meaning the same thing
      # on a cold runner and in a warm local tree.
      - name: Format check
        run: zig fmt --check build.zig src

      - name: Build
        run: zig build

      # The battery runs each step explicitly. Local semantics are deliberately
      # unchanged: e2e staying compile-only under `zig build test` is a good
      # inner-loop design, so CI names the steps rather than the build graph
      # being rewired to fold them in.
      - name: Unit tests
        run: zig build test

      - name: End-to-end tests
        run: zig build e2e

      - name: Deterministic simulation
        run: zig build dst

      # The seeded fuzz corpus, bounded. The targets also reach `zig build test`
      # through fixed-seed smoke cases, but this step exercises every registered
      # target through the real fuzz runner.
      #
      # `zig build fuzz` runs ONE target per invocation, so this sweeps them.
      # `--list` exits successfully and writes the complete registration table;
      # unlike scraping a failed bare invocation, its output is not truncated by
      # Zig's build-failure summary on Linux. A target added to fuzz_tests.zig is
      # therefore fuzzed automatically, with no second list to drift out of sync.
      #
      # Seed and rounds are fixed, not random: a red CI run has to be
      # reproducible verbatim on a developer machine. Deeper sweeps belong to
      # the out-of-band runner with its own budget.
      - name: Seeded fuzz sweep
        timeout-minutes: 10
        env:
          FUZZ_SEED: 1
          # 100, not 2000. Per-target cost varies by ~276x across the corpus —
          # artifact_parse_garbage runs 100 rounds in 0.18s while
          # logstore_pack_same_path_round_trip takes 49s, because it performs a
          # full store pack per round. The original 2000 was extrapolated from
          # one cheap target and made the sweep unable to finish inside this
          # step's own timeout: that single target alone would need ~16 minutes.
          # Measured at 100 rounds the whole sweep is ~76s, which is the budget
          # this number is chosen against, not a guess.
          #
          # What this buys is REGRESSION DETECTION — every target still runs
          # clean on every push. It is not a bug hunt: finding new defects needs
          # depth, and depth belongs in an out-of-band run with its own budget,
          # where a 30-minute sweep costs nobody a merge.
          FUZZ_ROUNDS: 100
        run: |
          set -euo pipefail
          targets="$(zig build fuzz -- --list)"
          if [ -z "${targets}" ]; then
            echo "no fuzz targets enumerated — the usage format changed and this sweep is vacuous" >&2
            exit 1
          fi
          count=0
          for target in ${targets}; do
            echo "fuzz: ${target} (seed ${FUZZ_SEED}, rounds ${FUZZ_ROUNDS})"
            zig build fuzz -- "${target}" --seed "${FUZZ_SEED}" --rounds "${FUZZ_ROUNDS}"
            count=$((count + 1))
          done
          echo "fuzz sweep: ${count} targets at seed ${FUZZ_SEED}"

      # The tightest per-step bound in the battery, and deliberately so: smoke
      # spawns a server, which is the one step that can hang without producing
      # output. The job ceiling would eventually catch it; this catches it while
      # the log still reads as a failed step rather than a dead run.
      - name: Fossil interop smoke
        timeout-minutes: 5
        run: zig build smoke