Update building

* Remove unused / non-standard .go-version.
* Cleanup indenting in Makefile.
* Enable dependabot for subdirs.
* Update golanci-lint CI.
* Update go.mod version directives to match supported versions.
* Disable golanci-lint unused-parameter.

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

.github/dependabot.yml

@@ -4,3 +4,11 @@ updates:
     directory: "/"
     schedule:
       interval: "monthly"
+  - package-ecosystem: "gomod"
+    directory: "/examples/middleware"
+    schedule:
+      interval: "monthly"
+  - package-ecosystem: "gomod"
+    directory: "/tutorial/whatsup"
+    schedule:
+      interval: "monthly"

.github/workflows/golangci-lint.yml

@@ -25,14 +25,14 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
       - name: install Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v3
         with:
-          go-version: 1.18.x
+          go-version: 1.20.x
       - name: Install snmp_exporter/generator dependencies
         run: sudo apt-get update && sudo apt-get -y install libsnmp-dev
         if: github.repository == 'prometheus/snmp_exporter'
       - name: Lint
         uses: golangci/golangci-lint-action@v3.4.0
         with:
           args: --verbose
-          version: v1.51.2
+          version: v1.53.3

.golangci.yml

@@ -45,3 +45,9 @@ linters-settings:
     local-prefixes: github.com/prometheus/client_golang
   gofumpt:
     extra-rules: true
+  revive:
+    rules:
+      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#unused-parameter
+      - name: unused-parameter
+        severity: warning
+        disabled: true

Makefile

@@ -24,9 +24,9 @@ test-short: deps common-test-short
 VERSIONS := 1.19 1.20 1.21
 generate-go-collector-test-files:
 	for GO_VERSION in $(VERSIONS); do \
-    	docker run --rm -v $(PWD):/workspace -w /workspace golang:$$GO_VERSION go run prometheus/gen_go_collector_metrics_set.go; \
+		docker run --rm -v $(PWD):/workspace -w /workspace golang:$$GO_VERSION go run prometheus/gen_go_collector_metrics_set.go; \
 		mv -f go_collector_metrics* prometheus; \
-    done
+		done
 
 .PHONY: fmt
 fmt: common-format

examples/middleware/go.mod

@@ -1,6 +1,6 @@
 module github.com/jessicalins/instrumentation-practices-examples/middleware
 
-go 1.17
+go 1.19
 
 require github.com/prometheus/client_golang v1.13.1
 

go.mod

@@ -1,6 +1,6 @@
 module github.com/prometheus/client_golang
 
-go 1.17
+go 1.19
 
 require (
 	github.com/beorn7/perks v1.0.1