271 lines
13 KiB
Makefile
271 lines
13 KiB
Makefile
SHELL := /usr/bin/env bash
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GO ?= go
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GOFMT ?= gofmt
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INSTALL ?= install
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PREFIX ?= $(HOME)/.local
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BINDIR ?= $(PREFIX)/bin
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LIBDIR ?= $(PREFIX)/lib
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DESTDIR ?=
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BUILD_DIR ?= build
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BUILD_BIN_DIR ?= $(BUILD_DIR)/bin
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BUILD_MANUAL_DIR ?= $(BUILD_DIR)/manual
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BANGER_BIN ?= $(BUILD_BIN_DIR)/banger
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BANGERD_BIN ?= $(BUILD_BIN_DIR)/bangerd
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VSOCK_AGENT_BIN ?= $(BUILD_BIN_DIR)/banger-vsock-agent
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BINARIES := $(BANGER_BIN) $(BANGERD_BIN) $(VSOCK_AGENT_BIN)
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GO_SOURCES := $(shell find cmd internal -type f -name '*.go' | sort)
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# BUILD_INPUTS is everything that can change a binary's bytes: Go sources
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# plus embedded assets (catalog.json, future static files). Listing
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# everything is cheaper than missing a rebuild — go's own cache absorbs
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# any redundant invocations.
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BUILD_INPUTS := $(shell find cmd internal -type f | sort)
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SHELL_SOURCES := $(shell find scripts -type f -name '*.sh' | sort)
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SMOKE_DIR := $(BUILD_DIR)/smoke
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SMOKE_BIN_DIR := $(SMOKE_DIR)/bin
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SMOKE_COVER_DIR := $(SMOKE_DIR)/covdata
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SMOKE_XDG_DIR := $(SMOKE_DIR)/xdg
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VERSION ?= $(shell git describe --tags --exact-match 2>/dev/null || echo dev)
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COMMIT ?= $(shell git rev-parse --verify HEAD 2>/dev/null || echo unknown)
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BUILT_AT ?= $(shell date -u +%Y-%m-%dT%H:%M:%SZ)
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GO_LDFLAGS := -X banger/internal/buildinfo.Version=$(VERSION) -X banger/internal/buildinfo.Commit=$(COMMIT) -X banger/internal/buildinfo.BuiltAt=$(BUILT_AT)
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.DEFAULT_GOAL := help
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# `make smoke-one` requires SCENARIO=. Validate before any prerequisite
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# (notably smoke-build) so a typo'd invocation doesn't pay for a Go
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# rebuild before learning it's wrong.
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ifneq (,$(filter smoke-one,$(MAKECMDGOALS)))
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ifndef SCENARIO
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$(error smoke-one needs SCENARIO=name (see `make smoke-list` for names))
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endif
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endif
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.PHONY: help build banger bangerd test fmt tidy clean install uninstall lint lint-go lint-shell coverage coverage-html coverage-total coverage-combined coverage-combined-html smoke smoke-build smoke-list smoke-one smoke-coverage-html smoke-clean smoke-fresh install-hooks
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help:
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@printf '%s\n' \
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'Targets:' \
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' make build Build ./build/bin/banger, ./build/bin/bangerd, and ./build/bin/banger-vsock-agent' \
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' make install Build and install banger, bangerd, and the companion vsock helper' \
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' make uninstall Stop the daemon and remove installed binaries (leaves user state by default)' \
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' make test Run go test ./...' \
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' make coverage Run tests with coverage; print per-package + total' \
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' make coverage-html Open a browsable per-line HTML report (writes coverage.html)' \
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' make coverage-total Print just the total statement coverage (for scripts/CI)' \
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' make coverage-combined Merge unit-test + smoke covdata; print per-package + total' \
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' make coverage-combined-html HTML report of the merged unit+smoke coverage' \
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' make lint Run gofmt + go vet + shellcheck (errors)' \
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' make fmt Format Go sources under cmd/ and internal/' \
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' make tidy Run go mod tidy' \
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' make clean Remove built Go binaries and coverage artefacts' \
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' make smoke Build instrumented binaries, run the supported systemd smoke suite, report coverage (needs KVM + sudo)' \
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' make smoke JOBS=N Override parallelism (default: nproc, capped at 8). JOBS=1 forces serial.' \
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' make smoke-list Print the list of smoke scenarios (no build, no install)' \
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' make smoke-one SCENARIO=NAME Run a single smoke scenario (still does the install preamble; comma-separated for several)' \
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' make smoke-fresh smoke-clean + smoke — purges stale smoke-owned installs before a clean supported-path run' \
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' make smoke-coverage-html HTML coverage report from the last smoke run' \
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' make smoke-clean Remove the smoke build tree and purge any stale smoke-owned system install' \
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' make install-hooks Point core.hooksPath at .githooks (lint + test + build run on every commit)'
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build: $(BINARIES)
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$(BANGER_BIN): $(BUILD_INPUTS) go.mod go.sum
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mkdir -p "$(BUILD_BIN_DIR)"
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$(GO) build -ldflags '$(GO_LDFLAGS)' -o "$(BANGER_BIN)" ./cmd/banger
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$(BANGERD_BIN): $(BUILD_INPUTS) go.mod go.sum
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mkdir -p "$(BUILD_BIN_DIR)"
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$(GO) build -ldflags '$(GO_LDFLAGS)' -o "$(BANGERD_BIN)" ./cmd/bangerd
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$(VSOCK_AGENT_BIN): $(BUILD_INPUTS) go.mod go.sum
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mkdir -p "$(BUILD_BIN_DIR)"
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CGO_ENABLED=0 GOOS=linux GOARCH=amd64 $(GO) build -ldflags '$(GO_LDFLAGS)' -o "$(VSOCK_AGENT_BIN)" ./cmd/banger-vsock-agent
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test:
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$(GO) test ./...
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# Coverage targets use -coverpkg=./... so packages without their own
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# tests still get counted when another package exercises them (common
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# for daemon/* subpackages). coverage.out is gitignored.
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coverage:
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$(GO) test -coverpkg=./... -coverprofile=coverage.out ./...
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@echo ''
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@echo 'Per-package:'
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@$(GO) tool cover -func=coverage.out | awk -F'\t+' '/^total:/ {total=$$NF; next} {pkg=$$1; sub("banger/", "", pkg); sub("/[^/]+:[0-9]+:$$", "", pkg); pkgs[pkg]+=1; covered[pkg]+=$$NF+0} END {for (p in pkgs) printf " %-40s %.1f%% (avg of %d funcs)\n", p, covered[p]/pkgs[p], pkgs[p] | "sort"; print ""; print "Total statement coverage:", total}'
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coverage-html: coverage
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$(GO) tool cover -html=coverage.out -o coverage.html
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@echo 'wrote coverage.html'
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coverage-total:
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@$(GO) test -coverpkg=./... -coverprofile=coverage.out ./... >/dev/null 2>&1 && $(GO) tool cover -func=coverage.out | awk '/^total:/ {print $$NF}'
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# coverage-combined unions unit-test coverage and smoke coverage into
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# one report. Unit tests cover pure-Go logic (error branches, parsing,
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# handler wiring); smoke covers the real sudo / firecracker / dm-snap
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# paths that unit tests physically can't reach. Separately each tells
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# half the story. Merged, this is the single "what's not being
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# exercised at all" view.
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#
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# Requires an up-to-date smoke run (the target depends on smoke-build
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# to rebuild instrumented binaries; re-run `make smoke` yourself if
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# scenarios changed). Modes must match; smoke uses the default 'set',
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# so the unit run below drops the default 'atomic' for alignment.
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COMBINED_COVER_DIR := $(BUILD_DIR)/combined
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UNIT_COVER_DIR := $(BUILD_DIR)/unit/covdata
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coverage-combined:
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@test -d "$(SMOKE_COVER_DIR)" && test "$$(ls -A $(SMOKE_COVER_DIR) 2>/dev/null)" || { \
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echo 'no smoke covdata at $(SMOKE_COVER_DIR); run `make smoke` first' >&2; exit 1; \
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}
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rm -rf "$(UNIT_COVER_DIR)" "$(COMBINED_COVER_DIR)"
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mkdir -p "$(UNIT_COVER_DIR)" "$(COMBINED_COVER_DIR)"
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$(GO) test -cover -coverpkg=./... ./... -args -test.gocoverdir="$(abspath $(UNIT_COVER_DIR))" >/dev/null
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$(GO) tool covdata merge -i="$(UNIT_COVER_DIR),$(SMOKE_COVER_DIR)" -o="$(COMBINED_COVER_DIR)"
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$(GO) tool covdata textfmt -i="$(COMBINED_COVER_DIR)" -o="$(BUILD_DIR)/combined.cover.out"
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@echo ''
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@echo 'Per-package (merged unit + smoke):'
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@$(GO) tool cover -func="$(BUILD_DIR)/combined.cover.out" | awk -F'\t+' '/^total:/ {total=$$NF; next} {pkg=$$1; sub("banger/", "", pkg); sub("/[^/]+:[0-9]+:$$", "", pkg); pkgs[pkg]+=1; covered[pkg]+=$$NF+0} END {for (p in pkgs) printf " %-40s %.1f%% (avg of %d funcs)\n", p, covered[p]/pkgs[p], pkgs[p] | "sort"; print ""; print "Total statement coverage:", total}'
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coverage-combined-html: coverage-combined
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$(GO) tool cover -html="$(BUILD_DIR)/combined.cover.out" -o "$(BUILD_DIR)/combined.cover.html"
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@echo 'wrote $(BUILD_DIR)/combined.cover.html'
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lint: lint-go lint-shell
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lint-go:
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@unformatted="$$($(GOFMT) -l $(GO_SOURCES))"; \
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if [ -n "$$unformatted" ]; then \
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printf 'gofmt: the following files are not formatted:\n%s\n' "$$unformatted" >&2; \
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exit 1; \
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fi
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$(GO) vet ./...
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lint-shell:
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@command -v shellcheck >/dev/null 2>&1 || { echo 'shellcheck is required for make lint-shell' >&2; exit 1; }
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shellcheck --severity=error $(SHELL_SOURCES)
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fmt:
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$(GOFMT) -w $(GO_SOURCES)
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tidy:
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$(GO) mod tidy
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# Local-only: redirect git's hook lookup at .githooks/ so .githooks/pre-commit
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# fires on every `git commit`. Idempotent. Bypass an individual commit with
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# `git commit --no-verify`.
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install-hooks:
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git config core.hooksPath .githooks
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@echo 'core.hooksPath -> .githooks (run `git config --unset core.hooksPath` to revert)'
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clean:
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rm -rf "$(BUILD_BIN_DIR)" coverage.out coverage.html
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# Smoke test suite. Builds the three banger binaries with -cover
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# instrumentation under $(SMOKE_BIN_DIR), installs them as temporary
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# bangerd.service + bangerd-root.service, runs the Go scenarios under
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# internal/smoketest (built with -tags=smoke), copies service covdata
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# out of /var/lib/banger, then purges the smoke-owned install on exit.
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#
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# This touches global systemd state. The harness refuses to overwrite a
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# pre-existing non-smoke install and drops a marker file under
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# /etc/banger so `make smoke-clean` can recover a stale smoke-owned
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# install after an interrupted run.
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#
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# Requires a KVM-capable Linux host with sudo. This is a pre-release
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# gate, not CI — the Go unit suite (`make test`) is what runs everywhere.
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smoke-build: $(SMOKE_BIN_DIR)/.built
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$(SMOKE_BIN_DIR)/.built: $(BUILD_INPUTS) go.mod go.sum
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mkdir -p "$(SMOKE_BIN_DIR)"
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$(GO) build -cover -ldflags '$(GO_LDFLAGS)' -o "$(SMOKE_BIN_DIR)/banger" ./cmd/banger
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$(GO) build -cover -ldflags '$(GO_LDFLAGS)' -o "$(SMOKE_BIN_DIR)/bangerd" ./cmd/bangerd
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CGO_ENABLED=0 GOOS=linux GOARCH=amd64 $(GO) build -ldflags '$(GO_LDFLAGS)' -o "$(SMOKE_BIN_DIR)/banger-vsock-agent" ./cmd/banger-vsock-agent
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touch "$@"
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# JOBS defaults to nproc; SMOKE_JOBS clamps it at 8. Each parallel slot
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# runs a smoke-tuned VM, and over-subscribing the host pushes
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# waitForSSH past its 60s deadline. Floored at 1 so JOBS=1 still works.
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JOBS ?= $(shell nproc 2>/dev/null || echo 1)
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SMOKE_JOBS := $(shell n=$(JOBS); [ $$n -lt 1 ] && n=1; [ $$n -gt 8 ] && n=8; echo $$n)
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smoke: smoke-build
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rm -rf "$(SMOKE_COVER_DIR)"
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mkdir -p "$(SMOKE_COVER_DIR)" "$(SMOKE_XDG_DIR)"
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BANGER_SMOKE_BIN_DIR="$(abspath $(SMOKE_BIN_DIR))" \
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BANGER_SMOKE_COVER_DIR="$(abspath $(SMOKE_COVER_DIR))" \
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BANGER_SMOKE_XDG_DIR="$(abspath $(SMOKE_XDG_DIR))" \
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$(GO) test -tags=smoke -count=1 -v -parallel $(SMOKE_JOBS) -timeout 30m ./internal/smoketest
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@echo ''
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@echo 'Smoke coverage:'
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@$(GO) tool covdata percent -i="$(SMOKE_COVER_DIR)"
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# smoke-list parses the test scaffold for scenario names. Cheap: no
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# smoke-build dep, no env vars, no test binary spawned.
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smoke-list:
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@grep -oE 't\.Run\("[a-z_]+", *test[A-Za-z]+\)' internal/smoketest/smoke_test.go \
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| sed -E 's/t\.Run\("([a-z_]+)".*/ \1/'
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# smoke-one runs one scenario (or a comma-separated list) with the
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# install preamble. Comma list becomes a regex alternation so multiple
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# scenarios can be selected without invoking go test by hand.
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SCENARIO_PATTERN := $(shell echo '$(SCENARIO)' | tr ',' '|')
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smoke-one: smoke-build
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rm -rf "$(SMOKE_COVER_DIR)"
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mkdir -p "$(SMOKE_COVER_DIR)" "$(SMOKE_XDG_DIR)"
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BANGER_SMOKE_BIN_DIR="$(abspath $(SMOKE_BIN_DIR))" \
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BANGER_SMOKE_COVER_DIR="$(abspath $(SMOKE_COVER_DIR))" \
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BANGER_SMOKE_XDG_DIR="$(abspath $(SMOKE_XDG_DIR))" \
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$(GO) test -tags=smoke -count=1 -v -timeout 30m \
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-run "TestSmoke/.*/($(SCENARIO_PATTERN))$$" \
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./internal/smoketest
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smoke-coverage-html: smoke
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$(GO) tool covdata textfmt -i="$(SMOKE_COVER_DIR)" -o="$(SMOKE_DIR)/cover.out"
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$(GO) tool cover -html="$(SMOKE_DIR)/cover.out" -o "$(SMOKE_DIR)/cover.html"
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@echo 'wrote $(SMOKE_DIR)/cover.html'
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smoke-clean:
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@if sudo test -f /etc/banger/.smoke-owned; then \
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bin=''; \
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if [ -x "$(SMOKE_BIN_DIR)/banger" ]; then \
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bin="$(abspath $(SMOKE_BIN_DIR))/banger"; \
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elif [ -x "$(BANGER_BIN)" ]; then \
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bin="$(abspath $(BANGER_BIN))"; \
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elif [ -x /usr/local/bin/banger ]; then \
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bin=/usr/local/bin/banger; \
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fi; \
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if [ -n "$$bin" ]; then \
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sudo "$$bin" system uninstall --purge >/dev/null 2>&1 || true; \
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fi; \
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fi
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rm -rf "$(SMOKE_DIR)"
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# smoke-fresh wipes the instrumented build tree, purges any stale
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# smoke-owned install, and then runs the supported-path smoke suite
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# from scratch.
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smoke-fresh: smoke-clean smoke
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install: build
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mkdir -p "$(DESTDIR)$(BINDIR)"
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mkdir -p "$(DESTDIR)$(LIBDIR)/banger"
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$(INSTALL) -m 0755 "$(BANGER_BIN)" "$(DESTDIR)$(BINDIR)/banger"
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$(INSTALL) -m 0755 "$(BANGERD_BIN)" "$(DESTDIR)$(BINDIR)/bangerd"
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$(INSTALL) -m 0755 "$(VSOCK_AGENT_BIN)" "$(DESTDIR)$(LIBDIR)/banger/banger-vsock-agent"
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# uninstall stops a running daemon (if any) and removes the installed
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# binaries. It does NOT touch user data (config, SSH keys, VM state,
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# image/kernel caches) — rm -rf those paths manually if wanted; they
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# are printed for convenience.
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uninstall:
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@if [ -x "$(DESTDIR)$(BINDIR)/banger" ]; then \
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"$(DESTDIR)$(BINDIR)/banger" daemon stop >/dev/null 2>&1 || true; \
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fi
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rm -f "$(DESTDIR)$(BINDIR)/banger" "$(DESTDIR)$(BINDIR)/bangerd"
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rm -rf "$(DESTDIR)$(LIBDIR)/banger"
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@printf '\nRemoved binaries. User data is preserved at:\n'
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@printf ' ~/.config/banger/ (config, ssh keys)\n'
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@printf ' ~/.local/state/banger/ (VMs, images, kernels, db, logs)\n'
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@printf ' ~/.cache/banger/ (OCI layer cache)\n'
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@printf '\nDelete those paths manually if you want a full purge.\n'
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