Makefile

BUILD_DIR ?= build
CMAKE ?= cmake
JOBS ?= $(shell nproc 2>/dev/null || sysctl -n hw.ncpu 2>/dev/null || echo 4)

.PHONY: configure build test chaos-smoke chaos-full chaos-budget bench bench-scaling bench-regress clean format format-check tsan-build tsan-stress

configure:
	$(CMAKE) -S . -B $(BUILD_DIR) -DCMAKE_BUILD_TYPE=RelWithDebInfo

build: configure
	$(CMAKE) --build $(BUILD_DIR) -j $(JOBS)

test: build
	cd $(BUILD_DIR) && ctest --output-on-failure -E '^chaos_(smoke|full)$$'

chaos-smoke: build
	cd $(BUILD_DIR) && ./chaos_test --scenarios=20 --seed=1

chaos-full: build
	cd $(BUILD_DIR) && ./chaos_test --scenarios=500 --seed=1 --json=$(CURDIR)/bench/results/chaos_local.json

# Same scope as chaos-full but stops after BUDGET seconds of wall clock.
# Mirrors what CI runs.
chaos-budget: build
	cd $(BUILD_DIR) && ./chaos_test --scenarios=500 --seed=1 \
	    --budget-seconds=$${BUDGET:-540} \
	    --json=$(CURDIR)/bench/results/chaos_local.json

tsan-build:
	$(CMAKE) -S . -B build-tsan -DCMAKE_BUILD_TYPE=RelWithDebInfo \
	    -DRAFTKV_TSAN=ON -DRAFTKV_WITH_GRPC=OFF
	$(CMAKE) --build build-tsan -j $(JOBS)

tsan-stress: tsan-build
	cd build-tsan && for t in log_test state_machine_test persister_test \
	    election_test replication_test log_invariants_test \
	    leader_election_integration replication_integration \
	    snapshot_integration client_ops_integration; do \
	      echo "=== TSan stress: $$t ==="; \
	      ./$$t --gtest_repeat=3 --gtest_break_on_failure || exit 1; \
	    done

bench: build
	cd $(BUILD_DIR) && ./throughput_bench --ops=2000 --out=$(CURDIR)/bench/results/bench_local.json

# Run the throughput bench at cluster sizes 3, 5, 7 and refresh the
# committed per-N baselines under bench/results/.
bench-scaling: build
	cd $(BUILD_DIR) && ./throughput_bench --scaling --ops=$${OPS:-2000} \
	    --out-dir=$(CURDIR)/bench/results

# Regression gate. Produces a fresh scaling run in a temp dir and diffs it
# against the committed baselines. Fails if throughput or P99 drifts more
# than DRIFT (default 0.30 = 30%). This is what CI runs.
bench-regress: build
	@mkdir -p $(BUILD_DIR)/bench_candidate
	cd $(BUILD_DIR) && ./throughput_bench --scaling --ops=$${OPS:-2000} \
	    --out-dir=$(BUILD_DIR)/bench_candidate
	$(BUILD_DIR)/bench_regress \
	    --baseline=$(CURDIR)/bench/results \
	    --candidate=$(BUILD_DIR)/bench_candidate \
	    --drift=$${DRIFT:-0.30}

format:
	@find src tests bench -name '*.cpp' -o -name '*.h' | xargs clang-format -i

format-check:
	@find src tests bench -name '*.cpp' -o -name '*.h' | xargs clang-format --dry-run --Werror

clean:
	rm -rf $(BUILD_DIR)