feat(blogo,plugins,empty-sourcer): rename and export defaultSourcer as emptySourcer

blogo/blogo.go

@@ -25,8 +25,16 @@ import (
 	"strings"
 )
 
+// TODO: use binary operation so multiple levels can be used together
+// type PanicLevel int
+//
+// const (
+// 	PanicOnInit
+// )
+
 type Options struct {
 	Logger *slog.Logger
+	// ErrorResponse TODO: structured error template or plugin
 }
 
 type Blogo struct {
@@ -138,8 +146,9 @@ func (b *Blogo) Init() error {
 	log.Debug("Initializing blogo")
 
 	if len(b.sources) == 0 {
-		log.Debug("No SourcerPlugin found, using default one")
-		b.Use(&defaultSourcer{})
+		sourcer := NewEmptySourcer()
+		log.Debug(fmt.Sprintf("No SourcerPlugin found, using %q as fallback", sourcer.Name()))
+		b.Use(sourcer)
 	}
 
 	if len(b.renderers) == 0 {

blogo/defaults.go

@@ -7,22 +7,6 @@ import (
 	"io/fs"
 )
 
-type defaultSourcer struct{}
-
-func (p *defaultSourcer) Name() string {
-	return "blogo-sourcer-empty"
-}
-
-func (p *defaultSourcer) Source() (fs.FS, error) {
-	return emptyFS{}, nil
-}
-
-type emptyFS struct{}
-
-func (f emptyFS) Open(name string) (fs.File, error) {
-	return nil, fs.ErrNotExist
-}
-
 type painTextRenderer struct{}
 
 func NewPlainTextRenderer() Plugin {

blogo/plugin_emptysourcer.go

@@ -0,0 +1,38 @@
+// Copyright 2025-present Gustavo "Guz" L. de Mello
+// Copyright 2025-present The Lored.dev Contributors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package blogo
+
+import "io/fs"
+
+type emptySourcer struct{}
+
+func NewEmptySourcer() Plugin {
+	return &emptySourcer{}
+}
+
+func (p *emptySourcer) Name() string {
+	return "blogo-empty-sourcer"
+}
+
+func (p *emptySourcer) Source() (fs.FS, error) {
+	return emptyFS{}, nil
+}
+
+type emptyFS struct{}
+
+func (f emptyFS) Open(name string) (fs.File, error) {
+	return nil, fs.ErrNotExist
+}