Makefile

GOOS ?= "$$(uname | tr '[:upper:]' '[:lower:]')"
GOARCH ?= "$$(uname -m | sed -e 's/x86_64/amd64/' -e 's/\(arm\)\(64\)\?.*/\1\2/' -e 's/aarch64$$/arm64/')"
CGO_ENABLED ?= 0

GO_ENVs ?= GOOS=$(GOOS) GOARCH=$(GOARCH) CGO_ENABLED=$(CGO_ENABLED)
GO ?= go

# Preferrably aligned with the version of OpenTelemetry collector core
OTELCOL_BUILDER_VERSION ?= 0.72.0
OTELCOL_BUILDER_DIR ?= ${HOME}/bin
OTELCOL_BUILDER ?= ${OTELCOL_BUILDER_DIR}/ocb

DISTRIBUTIONS ?= "otelcol-k8s,otelcol-vm"

ci: build

build: go ocb
	@$(GO_ENVs) ./scripts/build.sh -d "${DISTRIBUTIONS}" -b ${OTELCOL_BUILDER} -g ${GO}

generate: generate-sources

generate-sources: go ocb
	@$(GO_ENVs) ./scripts/build.sh -d "${DISTRIBUTIONS}" -s true -b ${OTELCOL_BUILDER} -g ${GO}

.PHONY: ocb
ocb:
ifeq (, $(shell command -v ocb 2>/dev/null))
	@{ \
	set -e ;\
	[ ! -x '$(OTELCOL_BUILDER)' ] || exit 0; \
	echo "Installing ocb $(OS)/$(ARCH) at $(OTELCOL_BUILDER_DIR)";\
	mkdir -p $(OTELCOL_BUILDER_DIR) ;\
	curl -sSfLo $(OTELCOL_BUILDER) "https://github.com/open-telemetry/opentelemetry-collector/releases/download/cmd%2Fbuilder%2Fv$(OTELCOL_BUILDER_VERSION)/ocb_$(OTELCOL_BUILDER_VERSION)_$(OS)_$(ARCH)" ;\
	chmod +x $(OTELCOL_BUILDER) ;\
	}
else
OTELCOL_BUILDER=$(shell command -v ocb)
endif

.PHONY: go
go:
	@{ \
		if ! command -v '$(GO)' >/dev/null 2>/dev/null; then \
			echo >&2 '$(GO) command not found. Please install golang. https://go.dev/doc/install'; \
			exit 1; \
		fi \
	}