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name: CI
on:
push:
branches:
pull_request:
branches:
permissions:
contents: read
concurrency:
group: ci-${{ github.ref }}
cancel-in-progress: true
env:
CARGO_TERM_COLOR: always
jobs:
test:
name: Format / Clippy / Test / Docs
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Install Rust toolchain
uses: dtolnay/rust-toolchain@stable
with:
toolchain: stable
components: rustfmt, clippy
- name: Cache dependencies
uses: Swatinem/rust-cache@v2
- name: Check formatting
run: cargo fmt --all --check
- name: Check clippy
run: cargo clippy --locked --all-targets -- -D warnings
- name: Install cargo-nextest
uses: taiki-e/install-action@nextest
# cargo-nextest with flaky-test management (#489): `.config/nextest.toml` retries a failing
# test up to 2x before failing the run, and reports retried tests as "flaky" in the summary.
- name: Run tests (nextest, retries=2)
run: cargo nextest run --locked --all --profile ci
- name: Build (release)
run: cargo build --locked --release
- name: Check documentation
run: cargo doc --locked --no-deps
coverage:
name: Coverage (>=80% lines)
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Install Rust toolchain
uses: dtolnay/rust-toolchain@stable
with:
toolchain: stable
components: llvm-tools-preview
- name: Cache dependencies
uses: Swatinem/rust-cache@v2
- name: Install cargo-llvm-cov
uses: taiki-e/install-action@cargo-llvm-cov
- name: Install cargo-nextest
uses: taiki-e/install-action@nextest
# Unit + conformance-harness coverage, CI-gated at >=80% lines (ecosystem standard #157). The
# whole crate — the registry + churn feed + bounded eviction, the measured-only quality
# estimators, the learned saturation/relay/volatility scoring, the engine's select/rebalance/
# record_outcome loop, and the observability snapshots — is exercised over the synthetic-topology
# + throughput-trace harness (NO real network), so every module is counted. No file is excluded.
#
# Combined `cargo llvm-cov nextest` form (flaky-test management #489): llvm-cov drives
# nextest directly so coverage is still collected under nextest's retry-on-failure behavior
# (`.config/nextest.toml`, retries=2). Running `cargo nextest run` and `cargo llvm-cov` as two
# SEPARATE steps collects zero coverage and fails this gate — do not split them.
- name: Run tests with coverage (nextest, retries=2, gate >=80% lines)
run: >-
cargo llvm-cov nextest --locked --all --profile ci
--fail-under-lines 80
--lcov --output-path lcov.info
- name: Upload coverage report
uses: actions/upload-artifact@v4
with:
name: lcov-coverage
path: lcov.info
if-no-files-found: error