renovate support for Makefile

.golangci.yaml

@@ -9,7 +9,6 @@ linters:
     - durationcheck
     - errcheck
     - errorlint
-    - exportloopref
     - gci
     - gofmt
     - gofumpt

Makefile

@@ -31,13 +31,13 @@ DEEPCOPY_GEN ?= $(LOCALBIN)/deepcopy-gen
 GINKGO ?= $(LOCALBIN)/ginkgo
 GOLANGCI_LINT ?= $(LOCALBIN)/golangci-lint
 GORELEASER ?= $(LOCALBIN)/goreleaser
-OAPI_CODEGEN ?= $(LOCALBIN)/oapi-codegen
 SEMVER ?= $(LOCALBIN)/semver
 
 ## Tool Versions
-DEEPCOPY_GEN_VERSION ?= v0.30.3
-GORELEASER_VERSION ?= v2.1.0
-OAPI_CODEGEN_VERSION ?= v2.3.0
+# renovate: packageName=k8s.io/code-generator/cmd/deepcopy-gen
+DEEPCOPY_GEN_VERSION ?= v0.31.1
+# renovate: packageName=github.com/goreleaser/goreleaser/v2
+GORELEASER_VERSION ?= v2.3.2
 
 ## Tool Installer
 .PHONY: deepcopy-gen
@@ -56,10 +56,6 @@ $(GOLANGCI_LINT): $(LOCALBIN)
 goreleaser: $(GORELEASER) ## Download goreleaser locally if necessary.
 $(GORELEASER): $(LOCALBIN)
 	test -s $(LOCALBIN)/goreleaser || GOBIN=$(LOCALBIN) go install github.com/goreleaser/goreleaser/v2@$(GORELEASER_VERSION)
-.PHONY: oapi-codegen
-oapi-codegen: $(OAPI_CODEGEN) ## Download oapi-codegen locally if necessary.
-$(OAPI_CODEGEN): $(LOCALBIN)
-	test -s $(LOCALBIN)/oapi-codegen || GOBIN=$(LOCALBIN) go install github.com/deepmap/oapi-codegen/v2/cmd/oapi-codegen@$(OAPI_CODEGEN_VERSION)
 .PHONY: semver
 semver: $(SEMVER) ## Download semver locally if necessary.
 $(SEMVER): $(LOCALBIN)
@@ -73,10 +69,8 @@ update-toolbox-tools:
 		$(LOCALBIN)/ginkgo \
 		$(LOCALBIN)/golangci-lint \
 		$(LOCALBIN)/goreleaser \
-		$(LOCALBIN)/oapi-codegen \
 		$(LOCALBIN)/semver
 	toolbox makefile -f $(LOCALDIR)/Makefile \
 		k8s.io/code-generator/cmd/deepcopy-gen@github.com/kubernetes/code-generator \
-		github.com/goreleaser/goreleaser/v2 \
-		github.com/deepmap/oapi-codegen/v2/cmd/oapi-codegen
+		github.com/goreleaser/goreleaser/v2
 ## toolbox - end

cmd/makefile.go

@@ -15,20 +15,26 @@ const (
 )
 
 var (
-	toolsGo string
+	toolsGo  string
+	renovate bool
 	// makefileCmd represents the makefile command
 	makefileCmd = &cobra.Command{
 		Use:   "makefile [tools]",
 		Short: "Adds tools to a Makefile",
 		Args: func(_ *cobra.Command, args []string) error {
-			if _, err := os.Stat(toolsGo); err != nil {
+			if _, err := os.Stat(toolsGo); err != nil && !renovate {
 				if len(args) == 0 {
 					return errors.New("at least one tool must be provided")
 				}
 			}
 			return nil
 		},
 		RunE: func(cmd *cobra.Command, args []string) error {
+			if renovate {
+				makefile.PrintRenovateConfig(cmd.OutOrStderr())
+				return nil
+			}
+
 			client := resty.New()
 			mf, err := cmd.Flags().GetString(flagFile)
 			if err != nil {
@@ -43,5 +49,6 @@ func init() {
 	rootCmd.AddCommand(makefileCmd)
 
 	makefileCmd.Flags().StringP(flagFile, "f", "", "The Makefile path to generate tools in")
-	makefileCmd.Flags().StringVar(&toolsGo, flagToolsGo, "tools.go", "The tools.go file to check for tools dependencies.")
+	makefileCmd.Flags().StringVar(&toolsGo, flagToolsGo, "tools.go", "The tools.go file to check for tools dependencies")
+	makefileCmd.Flags().BoolVar(&renovate, "renovate", false, "Print sample renovate config for Makefile")
 }

go.mod

@@ -165,7 +165,6 @@ require (
 	github.com/stretchr/objx v0.5.2 // indirect
 	github.com/stretchr/testify v1.9.0 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
-	github.com/t-yuki/gocover-cobertura v0.0.0-20180217150009-aaee18c8195c // indirect
 	github.com/tdakkota/asciicheck v0.2.0 // indirect
 	github.com/tetafro/godot v1.4.17 // indirect
 	github.com/timakin/bodyclose v0.0.0-20230421092635-574207250966 // indirect

pkg/makefile/Makefile.tpl

@@ -14,6 +14,7 @@ $(LOCALBIN):
 ## Tool Versions
 {{- range .Tools }}
 {{- if .Version }}
+# renovate: packageName={{.ToolName}}
 {{.UpperName}}_VERSION ?= {{.Version}}
 {{- end }}
 {{- end }}

pkg/makefile/consts.go

@@ -8,6 +8,24 @@ import (
 const (
 	markerStart = "## toolbox - start"
 	markerEnd   = "## toolbox - end"
+
+	renovateConfig = `{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "customManagers": [
+    {
+      "customType": "regex",
+      "description": "Update toolbox _VERSION variables in Makefile",
+      "fileMatch": [
+        "Makefile"
+      ],
+      "matchStrings": [
+        "# renovate: packageName=(?<packageName>.+?)\\s+.+?_VERSION \\?= (?<currentValue>.+?)\\s"
+      ],
+      "datasourceTemplate": "go"
+    }
+  ]
+}
+`
 )
 
 var (

pkg/makefile/make.go

@@ -172,3 +172,7 @@ func unique(slice []string) []string {
 	slices.Sort(uniqSlice)
 	return uniqSlice
 }
+
+func PrintRenovateConfig(out io.Writer) {
+	_, _ = out.Write([]byte(renovateConfig))
+}

renovate.json

@@ -1,4 +1,17 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "dependencyDashboard": true
+  "dependencyDashboard": true,
+  "customManagers": [
+    {
+      "customType": "regex",
+      "description": "Update toolbox _VERSION variables in Makefile",
+      "fileMatch": [
+        "Makefile"
+      ],
+      "matchStrings": [
+        "# renovate: packageName=(?<packageName>.+?)\\s+.+?_VERSION \\?= (?<currentValue>.+?)\\s"
+      ],
+      "datasourceTemplate": "go"
+    }
+  ]
 }

testdata/Makefile.content.expected

@@ -14,8 +14,11 @@ SEMVER ?= $(LOCALBIN)/semver
 TOOLBOX ?= $(LOCALBIN)/toolbox
 
 ## Tool Versions
+# renovate: packageName=sigs.k8s.io/controller-tools/cmd/controller-gen
 CONTROLLER_GEN_VERSION ?= v0.2.1
+# renovate: packageName=github.com/bakito/semver
 SEMVER_VERSION ?= v0.2.1
+# renovate: packageName=github.com/bakito/toolbox
 TOOLBOX_VERSION ?= v0.2.1
 
 ## Tool Installer

testdata/Makefile.expected

@@ -12,8 +12,11 @@ SEMVER ?= $(LOCALBIN)/semver
 TOOLBOX ?= $(LOCALBIN)/toolbox
 
 ## Tool Versions
+# renovate: packageName=sigs.k8s.io/controller-tools/cmd/controller-gen
 CONTROLLER_GEN_VERSION ?= v0.2.1
+# renovate: packageName=github.com/bakito/semver
 SEMVER_VERSION ?= v0.2.1
+# renovate: packageName=github.com/bakito/toolbox
 TOOLBOX_VERSION ?= v0.2.1
 
 ## Tool Installer

testdata/Makefile.hybrid.expected

@@ -12,7 +12,9 @@ SEMVER ?= $(LOCALBIN)/semver
 TOOLBOX ?= $(LOCALBIN)/toolbox
 
 ## Tool Versions
+# renovate: packageName=sigs.k8s.io/controller-tools/cmd/controller-gen
 CONTROLLER_GEN_VERSION ?= v0.2.1
+# renovate: packageName=github.com/bakito/toolbox
 TOOLBOX_VERSION ?= v0.2.1
 
 ## Tool Installer