Adopt scripts-to-rule-them-all: script/ entrypoints, Makefile shims

Makefile

@@ -1,48 +1,44 @@
-.PHONY: all build lint fmt fmt-check test check clean hooks docker
+.PHONY: all bootstrap setup build lint fmt fmt-check test check clean hooks docker
 
 BINARY := dnswatcher
 VERSION := $(shell git describe --tags --always --dirty 2>/dev/null || echo "dev")
 LDFLAGS := -X main.Version=$(VERSION)
 
+# Standard targets are thin shims; the implementations live in script/
+# per the scripts-to-rule-them-all pattern (see the Entrypoints section
+# of README.md).
+
 all: check build
 
+bootstrap:
+	@script/bootstrap
+
+setup:
+	@script/setup
+
 build:
 	go build -ldflags "$(LDFLAGS)" -o bin/$(BINARY) ./cmd/dnswatcher
 
+test:
+	@script/test
+
 lint:
-	golangci-lint run --config .golangci.yml ./...
+	@script/lint
 
 fmt:
-	gofmt -s -w .
-	goimports -w .
+	@script/fmt
 
 fmt-check:
-	@test -z "$$(gofmt -l .)" || (echo "gofmt: files not formatted:" && gofmt -l . && exit 1)
+	@script/fmt-check
 
-test:
-	go test -v -race -timeout 30s -cover ./...
-
-# Check runs all validation without making changes
-# Used by CI and Docker build - fails if anything is wrong
 check:
-	@echo "==> Checking formatting..."
-	@test -z "$$(gofmt -l .)" || (echo "Files not formatted:" && gofmt -l . && exit 1)
-	@echo "==> Running linter..."
-	golangci-lint run --config .golangci.yml ./...
-	@echo "==> Running tests..."
-	go test -v -race -timeout 30s ./...
-	@echo "==> Building..."
-	go build -ldflags "$(LDFLAGS)" -o /dev/null ./cmd/dnswatcher
-	@echo "==> All checks passed!"
+	@script/check
+
+docker:
+	@script/docker
+
+hooks:
+	@script/install-precommit
 
 clean:
 	rm -rf bin/
-
-hooks:
-	@echo '#!/bin/sh' > .git/hooks/pre-commit
-	@echo 'make check' >> .git/hooks/pre-commit
-	@chmod +x .git/hooks/pre-commit
-	@echo "Pre-commit hook installed."
-
-docker:
-	docker build .