Switch to new tools management from Go 1.24+ (#48)

Go 1.24 [added](https://go.dev/doc/go1.14#tools) pretty net feature that
simplify Go-based tools management in projects.

The best intro I read so far is
https://www.alexedwards.net/blog/how-to-manage-tool-dependencies-in-go-1.24-plus

Author: zmoog

Makefile

@@ -5,54 +5,52 @@ SERVICE_NAME    := otel-collector
 SERVICE_VERSION := 0.5-$(shell git rev-parse --short HEAD)
 SERVICE_IMAGE   := $(BASE_IMAGE_NAME)/$(SERVICE_NAME):$(SERVICE_VERSION)
 
-OTELCOL_VERSION := 0.120.0
-
 KO_DOCKER_REPO  := ghcr.io/zmoog/otel-collector-contrib
 
 # ==============================================================================
 # Define targets
 
-BUILD_DIR ?= _build
-export GOBIN = $(shell realpath $(BUILD_DIR))/_bin
+# BUILD_DIR ?= _build
+# export GOBIN = $(shell realpath $(BUILD_DIR))/_bin
 
-$(BUILD_DIR):
-	@mkdir -p $(BUILD_DIR)
+# $(BUILD_DIR):
+# 	@mkdir -p $(BUILD_DIR)
 
-$(GOBIN): tools/go.mod
-	cd tools && go install go.opentelemetry.io/collector/cmd/mdatagen
-	cd tools && go install go.opentelemetry.io/collector/cmd/builder
-	cd tools && go install golang.org/x/tools/cmd/goimports
-	cd tools && go install honnef.co/go/tools/cmd/staticcheck
+# $(GOBIN): tools/go.mod
+# 	cd tools && go install go.opentelemetry.io/collector/cmd/mdatagen
+# 	cd tools && go install go.opentelemetry.io/collector/cmd/builder
+# 	cd tools && go install golang.org/x/tools/cmd/goimports
+# 	cd tools && go install honnef.co/go/tools/cmd/staticcheck
 
 
 .PHONY: generate
-generate: $(GOBIN)
+generate:
 	# look inside the receiver directory
 	# and run mdatagen against the metadata.yaml
 	# found there
-	find receiver -name go.mod -execdir $(GOBIN)/mdatagen metadata.yaml \;
+	find receiver -name go.mod -execdir go tool mdatagen metadata.yaml \;
 
 .PHONY: staticcheck
-staticcheck: $(GOBIN)
+staticcheck:
 	# run staticcheck for all go
 	# directories that have a go.mod
 	# file present
-	find . -name go.mod -execdir $(GOBIN)/staticcheck ./... \;
+	find . -name go.mod -execdir go tool staticcheck ./... \;
 
 .PHONY: fmt
-fmt: $(GOBIN)
-	$(GOBIN)/goimports -local github.com/zmoog/ -w .
+fmt:
+	go tool goimports -local github.com/zmoog/ -w .
 
 .PHONY: generate-otelcol
-generate-otelcol: $(GOBIN)
-	cd collector && $(GOBIN)/builder --config builder-config.yaml
+generate-otelcol:
+	cd collector && go tool builder --config builder-config.yaml
 
 .PHONY: run
 run:
 	cd collector/otelcol && ./otelcol --config ../../config.yaml
 
 .PHONY: service
-service: $(GOBIN)
-	cd collector/otelcol && KO_DOCKER_REPO=$(KO_DOCKER_REPO) $(GOBIN)/ko build . \
+service:
+	cd collector/otelcol && KO_DOCKER_REPO=$(KO_DOCKER_REPO) go tool ko build . \
 		--platform=linux/amd64,linux/arm64 \
 		--bare

go.work

@@ -5,4 +5,5 @@ use (
 	./receiver/toggltrackreceiver
 	./receiver/wavinsentioreceiver
 	./receiver/zcsazzurroreceiver
+	./tools
 )