Add --helm-debug Flag to Kustomize for Enhanced Helm Debugging (#5751)

* feat: add helm-debug flag

* revert: go.work.sum

* test: add helm chart args helm-debug test

* test: helm debug flag

* refactor: helm debug output

* style: linting

* revert: go.work.sum

api/types/helmchartargs.go

@@ -96,6 +96,9 @@ type HelmChart struct {
 
 	// SkipTests skips tests from templated output.
 	SkipTests bool `json:"skipTests,omitempty" yaml:"skipTests,omitempty"`
+
+	// debug enables debug output from the Helm chart inflator generator.
+	Debug bool `json:"debug,omitempty" yaml:"debug,omitempty"`
 }
 
 // HelmChartArgs contains arguments to helm.
@@ -188,5 +191,8 @@ func (h HelmChart) AsHelmArgs(absChartHome string) []string {
 	if h.SkipHooks {
 		args = append(args, "--no-hooks")
 	}
+	if h.Debug {
+		args = append(args, "--debug")
+	}
 	return args
 }

api/types/helmchartargs_test.go

@@ -60,4 +60,21 @@ func TestAsHelmArgs(t *testing.T) {
 				"-f", "values1", "-f", "values2",
 				"--api-versions", "foo", "--api-versions", "bar"})
 	})
+
+	t.Run("use helm-debug", func(t *testing.T) {
+		p := types.HelmChart{
+			Name:                  "chart-name",
+			Version:               "1.0.0",
+			Repo:                  "https://helm.releases.hashicorp.com",
+			ValuesFile:            "values",
+			AdditionalValuesFiles: []string{"values1", "values2"},
+			Debug:                 true,
+		}
+		require.Equal(t, p.AsHelmArgs("/home/charts"),
+			[]string{"template", "--generate-name", "/home/charts/chart-name",
+				"-f", "values",
+				"-f", "values1",
+				"-f", "values2",
+				"--debug"})
+	})
 }

api/types/pluginconfig.go

@@ -8,6 +8,7 @@ type HelmConfig struct {
 	Command     string
 	ApiVersions []string
 	KubeVersion string
+	Debug       bool
 }
 
 // PluginConfig holds plugin configuration.