From 070e4b2e17750941e38ebb4037d67da3a05a6788 Mon Sep 17 00:00:00 2001
From: Ben Kochie <superq@gmail.com>
Date: Fri, 4 Jan 2019 16:58:53 +0100
Subject: Update Makefile.common (#1220)

* Update Makefile.common

Update to new staticcheck method[0].

[0]: https://github.com/prometheus/prometheus/pull/5057

Signed-off-by: Ben Kochie <superq@gmail.com>

* Fix staticcheck errors.

Signed-off-by: Ben Kochie <superq@gmail.com>
---
 Makefile.common | 40 +++++++++++++++++++++-------------------
 1 file changed, 21 insertions(+), 19 deletions(-)

(limited to 'Makefile.common')

diff --git a/Makefile.common b/Makefile.common
index f26a788..fff85f9 100644
--- a/Makefile.common
+++ b/Makefile.common
@@ -29,6 +29,8 @@ GO           ?= go
 GOFMT        ?= $(GO)fmt
 FIRST_GOPATH := $(firstword $(subst :, ,$(shell $(GO) env GOPATH)))
 GOOPTS       ?=
+GOHOSTOS     ?= $(shell $(GO) env GOHOSTOS)
+GOHOSTARCH   ?= $(shell $(GO) env GOHOSTARCH)
 
 GO_VERSION        ?= $(shell $(GO) version)
 GO_VERSION_NUMBER ?= $(word 3, $(GO_VERSION))
@@ -62,8 +64,6 @@ PROMU        := $(FIRST_GOPATH)/bin/promu
 STATICCHECK  := $(FIRST_GOPATH)/bin/staticcheck
 pkgs          = ./...
 
-GOHOSTOS ?= $(shell $(GO) env GOHOSTOS)
-GOHOSTARCH ?= $(shell $(GO) env GOHOSTARCH)
 ifeq (arm, $(GOHOSTARCH))
 	GOHOSTARM ?= $(shell GOARM= $(GO) env GOARM)
 	GO_BUILD_PLATFORM ?= $(GOHOSTOS)-$(GOHOSTARCH)v$(GOHOSTARM)
@@ -73,12 +73,21 @@ endif
 
 PROMU_VERSION ?= 0.2.0
 PROMU_URL     := https://github.com/prometheus/promu/releases/download/v$(PROMU_VERSION)/promu-$(PROMU_VERSION).$(GO_BUILD_PLATFORM).tar.gz
+STATICCHECK_VERSION ?= 2019.1
+STATICCHECK_URL     := https://github.com/dominikh/go-tools/releases/download/$(STATICCHECK_VERSION)/staticcheck_$(GOHOSTOS)_$(GOHOSTARCH)
 
 PREFIX                  ?= $(shell pwd)
 BIN_DIR                 ?= $(shell pwd)
 DOCKER_IMAGE_TAG        ?= $(subst /,-,$(shell git rev-parse --abbrev-ref HEAD))
 DOCKER_REPO             ?= prom
 
+ifeq ($(GOHOSTARCH),amd64)
+        ifeq ($(GOHOSTOS),$(filter $(GOHOSTOS),linux freebsd darwin windows))
+                # Only supported on amd64
+                test-flags := -race
+        endif
+endif
+
 .PHONY: all
 all: precheck style staticcheck unused build test
 
@@ -116,7 +125,7 @@ common-test-short:
 .PHONY: common-test
 common-test:
 	@echo ">> running all tests"
-	GO111MODULE=$(GO111MODULE) $(GO) test -race $(GOOPTS) $(pkgs)
+	GO111MODULE=$(GO111MODULE) $(GO) test $(test-flags) $(GOOPTS) $(pkgs)
 
 .PHONY: common-format
 common-format:
@@ -131,8 +140,12 @@ common-vet:
 .PHONY: common-staticcheck
 common-staticcheck: $(STATICCHECK)
 	@echo ">> running staticcheck"
+	chmod +x $(STATICCHECK)
 ifdef GO111MODULE
-	GO111MODULE=$(GO111MODULE) $(STATICCHECK) -ignore "$(STATICCHECK_IGNORE)" -checks "SA*" $(pkgs)
+# 'go list' needs to be executed before staticcheck to prepopulate the modules cache.
+# Otherwise staticcheck might fail randomly for some reason not yet explained.
+	GO111MODULE=$(GO111MODULE) $(GO) list -e -compiled -test=true -export=false -deps=true -find=false -tags= -- ./... > /dev/null
+	GO111MODULE=$(GO111MODULE) $(STATICCHECK) -ignore "$(STATICCHECK_IGNORE)" $(pkgs)
 else
 	$(STATICCHECK) -ignore "$(STATICCHECK_IGNORE)" $(pkgs)
 endif
@@ -146,8 +159,9 @@ else
 ifdef GO111MODULE
 	@echo ">> running check for unused/missing packages in go.mod"
 	GO111MODULE=$(GO111MODULE) $(GO) mod tidy
+ifeq (,$(wildcard vendor))
 	@git diff --exit-code -- go.sum go.mod
-ifneq (,$(wildcard vendor))
+else
 	@echo ">> running check for unused packages in vendor/"
 	GO111MODULE=$(GO111MODULE) $(GO) mod vendor
 	@git diff --exit-code -- go.sum go.mod vendor/
@@ -192,21 +206,9 @@ proto:
 	@echo ">> generating code from proto files"
 	@./scripts/genproto.sh
 
-.PHONY: $(STATICCHECK)
 $(STATICCHECK):
-ifdef GO111MODULE
-# Get staticcheck from a temporary directory to avoid modifying the local go.{mod,sum}.
-# See https://github.com/golang/go/issues/27643.
-# For now, we are using the next branch of staticcheck because master isn't compatible yet with Go modules.
-	tmpModule=$$(mktemp -d 2>&1) && \
-	mkdir -p $${tmpModule}/staticcheck && \
-	cd "$${tmpModule}"/staticcheck && \
-	GO111MODULE=on $(GO) mod init example.com/staticcheck && \
-	GO111MODULE=on GOOS= GOARCH= $(GO) get -u honnef.co/go/tools/cmd/staticcheck@next && \
-	rm -rf $${tmpModule};
-else
-	GOOS= GOARCH= GO111MODULE=off $(GO) get -u honnef.co/go/tools/cmd/staticcheck
-endif
+	mkdir -p $(FIRST_GOPATH)/bin
+	curl -s -L $(STATICCHECK_URL) > $(STATICCHECK)
 
 ifdef GOVENDOR
 .PHONY: $(GOVENDOR)
-- 
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