tpl/fmt: Add erroridf template func

Fixes #8613

tpl/fmt/fmt.go

@@ -17,20 +17,22 @@ package fmt
 import (
 	_fmt "fmt"
 
+	"github.com/gohugoio/hugo/common/loggers"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/helpers"
 )
 
 // New returns a new instance of the fmt-namespaced template functions.
 func New(d *deps.Deps) *Namespace {
+	ignorableLogger := d.Log.(loggers.IgnorableLogger)
+	distinctLogger := helpers.NewDistinctLogger(d.Log)
 	ns := &Namespace{
-		errorLogger: helpers.NewDistinctLogger(d.Log.Error()),
-		warnLogger:  helpers.NewDistinctLogger(d.Log.Warn()),
+		distinctLogger: ignorableLogger.Apply(distinctLogger),
 	}
 
 	d.BuildStartListeners.Add(func() {
-		ns.errorLogger.Reset()
-		ns.warnLogger.Reset()
+		ns.distinctLogger.Reset()
 	})
 
 	return ns
@@ -38,8 +40,7 @@ func New(d *deps.Deps) *Namespace {
 
 // Namespace provides template functions for the "fmt" namespace.
 type Namespace struct {
-	errorLogger *helpers.DistinctLogger
-	warnLogger  *helpers.DistinctLogger
+	distinctLogger loggers.IgnorableLogger
 }
 
 // Print returns string representation of the passed arguments.
@@ -60,13 +61,21 @@ func (ns *Namespace) Println(a ...interface{}) string {
 // Errorf formats according to a format specifier and logs an ERROR.
 // It returns an empty string.
 func (ns *Namespace) Errorf(format string, a ...interface{}) string {
-	ns.errorLogger.Printf(format, a...)
+	ns.distinctLogger.Errorf(format, a...)
+	return ""
+}
+
+// Erroridf formats according to a format specifier and logs an ERROR and
+// an information text that the error with the given ID can be suppressed in config.
+// It returns an empty string.
+func (ns *Namespace) Erroridf(id, format string, a ...interface{}) string {
+	ns.distinctLogger.Errorsf(id, format, a...)
 	return ""
 }
 
 // Warnf formats according to a format specifier and logs a WARNING.
 // It returns an empty string.
 func (ns *Namespace) Warnf(format string, a ...interface{}) string {
-	ns.warnLogger.Printf(format, a...)
+	ns.distinctLogger.Warnf(format, a...)
 	return ""
 }

tpl/fmt/init.go

@@ -57,6 +57,13 @@ func init() {
 			},
 		)
 
+		ns.AddMethodMapping(ctx.Erroridf,
+			[]string{"erroridf"},
+			[][2]string{
+				{`{{ erroridf "my-err-id" "%s." "failed" }}`, ``},
+			},
+		)
+
 		ns.AddMethodMapping(ctx.Warnf,
 			[]string{"warnf"},
 			[][2]string{

tpl/fmt/init_test.go

@@ -30,7 +30,7 @@ func TestInit(t *testing.T) {
 	var ns *internal.TemplateFuncsNamespace
 
 	for _, nsf := range internal.TemplateFuncsNamespaceRegistry {
-		ns = nsf(&deps.Deps{Log: loggers.NewErrorLogger()})
+		ns = nsf(&deps.Deps{Log: loggers.NewIgnorableLogger(loggers.NewErrorLogger())})
 		if ns.Name == name {
 			found = true
 			break