Makefile


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.POSIX:
DESTDIR=$(HOME)
PREFIX=/.local
INSTALL_PATH=$(DESTDIR)$(PREFIX)/bin
BIN=prognosis
DIST=dist

.PHONY: help build install uninstall test vet fmt ci cross clean

help: ## show this help
	@grep -E '^[a-z-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "  \033[1m%-16s\033[0m %s\n", $$1, $$2}'

build: ## build the Go binary into ./$(BIN)
	go build -trimpath -ldflags "-s -w" -o $(BIN) ./cmd/prognosis

install: build ## build and install the Go binary
	mkdir -p $(INSTALL_PATH)
	# rm first: the target may be a symlink into this repo (see `link`), and cp
	# follows symlinks -- it would write the binary over bin/prognosis itself.
	rm -f $(INSTALL_PATH)/$(BIN)
	cp $(BIN) $(INSTALL_PATH)/$(BIN)
	chmod 755 $(INSTALL_PATH)/$(BIN)
	@echo "Installed. Config: $$($(INSTALL_PATH)/$(BIN) -config)"


uninstall: ## remove the installed binary
	rm -f $(INSTALL_PATH)/$(BIN)

test: ## run the tests
	go test ./...

vet: ## go vet
	go vet ./...

fmt: ## gofmt the tree
	gofmt -w .

ci: ## pre-push gate: gofmt clean, vet, tests, no third-party deps
	@test -z "$$(gofmt -l .)" || { echo "gofmt needed:"; gofmt -l .; exit 1; }
	go vet ./...
	go test ./...
	@deps=$$(go list -deps ./... | grep -E '^[a-z0-9-]+\.[a-z]+/' | grep -v '^github.com/lukaszkasprzak/prognosis' || true); \
	  test -z "$$deps" || { echo "third-party dependencies crept in:"; echo "$$deps"; exit 1; }
	@echo "ci ok"

cross: ## cross-compile into $(DIST)/ -- android/arm64 is the phone
	mkdir -p $(DIST)
	CGO_ENABLED=0 GOOS=linux   GOARCH=amd64 go build -trimpath -ldflags "-s -w" -o $(DIST)/$(BIN)-linux-amd64   ./cmd/prognosis
	CGO_ENABLED=0 GOOS=linux   GOARCH=arm64 go build -trimpath -ldflags "-s -w" -o $(DIST)/$(BIN)-linux-arm64   ./cmd/prognosis
	CGO_ENABLED=0 GOOS=android GOARCH=arm64 go build -trimpath -ldflags "-s -w" -o $(DIST)/$(BIN)-android-arm64 ./cmd/prognosis
	@ls -la $(DIST)


clean: ## remove build artifacts
	rm -rf $(BIN) $(DIST)