lint: minor optimizations

.github/workflows/ci.yml

@@ -11,10 +11,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - name: set up go 1.16
+      - name: set up go 1.17
         uses: actions/setup-go@v2
         with:
-          go-version: 1.16
+          go-version: 1.17
         id: go
 
       - name: checkout
@@ -32,7 +32,7 @@ jobs:
 
       - name: install golangci-lint and goveralls
         run: |
-          curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh| sh -s -- -b $GITHUB_WORKSPACE v1.39.0
+          curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh| sh -s -- -b $GITHUB_WORKSPACE v1.49.0
           GO111MODULE=off go get -u -v github.com/mattn/goveralls
 
       - name: run linters

.golangci.yml

@@ -31,17 +31,14 @@ linters:
     - govet
     - unconvert
     - megacheck
-    - structcheck
     - gas
     - gocyclo
     - dupl
     - misspell
     - unparam
-    - varcheck
-    - deadcode
+    - unused
     - typecheck
     - ineffassign
-    - varcheck
     - stylecheck
     - gochecknoinits
     - exportloopref

middleware.go

@@ -69,7 +69,7 @@ func Health(path string, checkers ...func(ctx context.Context) (name string, err
 
 	return func(h http.Handler) http.Handler {
 		fn := func(w http.ResponseWriter, r *http.Request) {
-			if r.Method != "GET" || strings.ToLower(r.URL.Path) != path {
+			if r.Method != "GET" || !strings.EqualFold(r.URL.Path, path) {
 				h.ServeHTTP(w, r) // not the health check request, continue the chain
 				return
 			}