tpl/resources: Add resources.Publish

Closes #15208

tpl/resources/init.go

@@ -90,6 +90,11 @@ func init() {
 			[][2]string{},
 		)
 
+		ns.AddMethodMapping(ctx.Publish,
+			nil,
+			[][2]string{},
+		)
+
 		ns.AddMethodMapping(ctx.PostProcess,
 			nil,
 			[][2]string{},

tpl/resources/resources.go

@@ -296,6 +296,18 @@ func (ns *Namespace) Minify(r resources.ResourceTransformer) (resource.Resource,
 	return ns.minifyClient.Minify(r)
 }
 
+// Publish publishes r to the destination and returns it.
+func (ns *Namespace) Publish(r resource.Resource) (resource.Resource, error) {
+	s, ok := r.(resource.Source)
+	if !ok {
+		return nil, fmt.Errorf("%T can not be published", r)
+	}
+	if err := s.Publish(); err != nil {
+		return nil, err
+	}
+	return r, nil
+}
+
 // PostProcess processes r after the build.
 //
 // Deprecated: Use templates.Defer instead.

tpl/resources/resources_integration_test.go

@@ -278,6 +278,26 @@ disableKinds = ['page','section','rss','sitemap','taxonomy','term']
 	b.AssertLogContains("! WARN  Dart Sass: hugo:vars")
 }
 
+// See issue 15208.
+func TestPublish(t *testing.T) {
+	t.Parallel()
+
+	files := `
+-- hugo.toml --
+disableKinds = ["taxonomy", "term", "section", "RSS", "sitemap", "robotsTXT", "404"]
+-- assets/js/main.js --
+let foo;
+-- layouts/home.html --
+{{ $r := resources.Get "js/main.js" | minify | resources.Publish }}
+Name: {{ $r.Name }}|
+`
+
+	b := hugolib.Test(t, files)
+
+	b.AssertFileContent("public/index.html", "Name: /js/main.js|")
+	b.AssertFileExists("public/js/main.min.js", true)
+}
+
 // See issue 15086.
 func TestPostProcessDeprecated(t *testing.T) {
 	t.Parallel()