build: use golangci-lint for code quality checks

.golangci.yml

@@ -0,0 +1,27 @@
+# golangci-lint configuration options
+
+run:
+  build-tags:
+    - cmount
+
+linters:
+  enable:
+    - deadcode
+    - errcheck
+    - goimports
+    - golint
+    - ineffassign
+    - structcheck
+    - varcheck
+    - govet
+    - unconvert
+    #- prealloc
+    #- maligned
+  disable-all: true
+
+issues:
+  # Maximum issues count per one linter. Set to 0 to disable. Default is 50.
+  max-per-linter: 0
+
+  # Maximum count of issues with the same text. Set to 0 to disable. Default is 3.
+  max-same-issues: 0

.gometalinter.json

@@ -1,14 +0,0 @@
-{
-    "Enable": [
-        "deadcode",
-        "errcheck",
-        "goimports",
-        "golint",
-        "ineffassign",
-        "structcheck",
-        "varcheck",
-        "vet"
-    ],
-    "EnableGC": true,
-    "Vendor": true
-}

Makefile

@@ -64,30 +64,20 @@ endif
 # Do source code quality checks
 check:	rclone
 ifdef FULL_TESTS
-	go vet $(BUILDTAGS) -printfuncs Debugf,Infof,Logf,Errorf ./...
-	errcheck $(BUILDTAGS) ./...
-	find . -name \*.go | grep -v /vendor/ | xargs goimports -d | grep . ; test $$? -eq 1
-	go list ./... | xargs -n1 golint | grep -E -v '(StorageUrl|CdnUrl|ApplicationCredentialId)' ; test $$? -eq 1
+	@# we still run go vet for -printfuncs which golangci-lint doesn't do yet
+	@# see: https://github.com/golangci/golangci-lint/issues/204
+	@echo "-- START CODE QUALITY REPORT -------------------------------"
+	@go vet $(BUILDTAGS) -printfuncs Debugf,Infof,Logf,Errorf ./...
+	@golangci-lint run ./...
+	@echo "-- END CODE QUALITY REPORT ---------------------------------"
 else
 	@echo Skipping source quality tests as version of go too old
 endif
 
-gometalinter_install:
-	go get -u github.com/alecthomas/gometalinter
-	gometalinter --install --update
-
-# We aren't using gometalinter as the default linter yet because
-# 1. it doesn't support build tags: https://github.com/alecthomas/gometalinter/issues/275
-# 2. can't get -printfuncs working with the vet linter
-gometalinter:
-	gometalinter ./...
-
 # Get the build dependencies
 build_dep:
 ifdef FULL_TESTS
-	go get -u github.com/kisielk/errcheck
-	go get -u golang.org/x/tools/cmd/goimports
-	go get -u golang.org/x/lint/golint
+	go run bin/get-github-release.go -extract golangci-lint golangci/golangci-lint 'golangci-lint-.*-linux-amd64.tar.gz'
 endif
 
 # Get the release dependencies