feat: go@1.12 support (#566)

* add go@1.12 support

* increase unsupported versions to go@1.10

* fix vet

* upgrade some vendors

.travis.yml

@@ -19,6 +19,10 @@ matrix:
       env:  TEST_WITH_REAL_API=0 GOTESTFLAGS="-race -cpu=1,2,4"
     - go:   "1.11"
       env:  TEST_WITH_REAL_API=1
+    - go:   "1.12"
+      env:  TEST_WITH_REAL_API=0 GOTESTFLAGS="-race -cpu=1,2,4"
+    - go:   "1.12"
+      env:  TEST_WITH_REAL_API=1
     - go:   tip
       env:  TEST_WITH_REAL_API=0 GOTESTFLAGS="-race -cpu=1,2,4"
   allow_failures:

Makefile

@@ -6,6 +6,7 @@ GOBUILD ?=	$(GO) build
 GOCLEAN ?=	$(GO) clean
 GOINSTALL ?=	$(GO) install
 GOTEST ?=	$(GO) test $(GOTESTFLAGS)
+GOMINORVERSION ?= $(shell $(GO) version | cut -c 14- | cut -d' ' -f1 | cut -d'.' -f2)
 GOFMT ?=	gofmt -w -s
 GODIR ?=	github.com/scaleway/scaleway-cli
 GOCOVER ?=	$(GOTEST) -covermode=count -v
@@ -31,12 +32,12 @@ NAME =		scw
 rwildcard=$(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2) $(filter $(subst *,%,$2),$d))
 uniq = $(if $1,$(firstword $1) $(call uniq,$(filter-out $(firstword $1),$1)))
 
+
+
 SOURCES :=	$(call rwildcard,./pkg ./cmd,*.go)
 COMMANDS :=	$(call uniq,$(dir $(call rwildcard,./cmd/,*.go)))
 PACKAGES :=	$(call uniq,$(dir $(call rwildcard,./pkg/,*.go))) .
 
-REL_COMMANDS :=	$(subst $(GODIR),.,$(COMMANDS))
-REL_PACKAGES :=	$(subst $(GODIR),.,$(PACKAGES))
 REV =		$(shell git rev-parse --short HEAD 2>/dev/null || echo "nogit")
 LDFLAGS = "-X `go list ./pkg/scwversion`.GITCOMMIT=$(REV) -s"
 BUILDER =	scaleway-cli-builder
@@ -62,7 +63,13 @@ fmt: $(FMT_LIST)
 
 
 $(BUILD_LIST): %_build: %_fmt
-	@go tool vet --all=true $(shell echo $(SOURCES) | tr " " "\n" | grep -v test.go)
+	@# https://golang.org/doc/go1.12#vet
+	@# vel = go tip version
+	@if [ $(GOMINORVERSION) = vel ] || [ $(GOMINORVERSION) -gt 11 ]; then \
+		$(GO) vet ./...; \
+	else \
+		$(GO) tool vet --all=true $(shell echo $(SOURCES) | tr " " "\n" | grep -v test.go); \
+	fi
 	$(GOBUILD) -ldflags $(LDFLAGS) -o $(NAME) ./cmd/$(NAME)
 
 $(CLEAN_LIST): %_clean:

cmd/scw/main_unsupported.go

@@ -1,7 +1,7 @@
-// +build !go1.5
+// +build !go1.10
 
 package main
 
 func error() {
-	`Bad go version, please install a version greater than or equal to 1.5`
+	`Bad go version, please install a version greater than or equal to 1.10`
 }

goversion.go

@@ -1,3 +1,3 @@
-// +build go1.5
+// +build go1.10
 
 package goversion

goversion_unsupported.go

@@ -1,7 +1,7 @@
-// +build !go1.5
+// +build !go1.10
 
 package goversion
 
 func error() {
-	`Bad go version, please install a version greater than or equal to 1.5`
+	`Bad go version, please install a version greater than or equal to 1.10`
 }