✨ Add null formatter

cmd/drop.go

@@ -67,7 +67,10 @@ var dropCmd = &cobra.Command{
 		if err != nil {
 			return err
 		}
-		fmt.Fprintf(cmd.OutOrStdout(), "%s\n", out)
+		if len(out) > 0 && out[len(out)-1] != 10 {
+			out = append(out, 10)
+		}
+		fmt.Fprintf(cmd.OutOrStdout(), "%s", out)
 
 		return nil
 	},

formatters/new.go

@@ -11,6 +11,7 @@ type formatMaker func(config.Formatters) (Formatter, error)
 var formatterMap = map[string]formatMaker{
 	"plain": newPlain,
 	"json":  newJson,
+	"zero":  newNull,
 }
 
 func Preferred() (f Formatter, err error) {

formatters/new_test.go

@@ -10,7 +10,7 @@ import (
 )
 
 func TestKinds(t *testing.T) {
-	assert.ElementsMatch(t, []string{"plain", "json"}, Kinds())
+	assert.ElementsMatch(t, []string{"plain", "json", "zero"}, Kinds())
 }
 
 func TestNewUnsupported(t *testing.T) {

formatters/null.go

@@ -0,0 +1,32 @@
+package formatters
+
+import (
+	"codeberg.org/danjones000/my-log/config"
+	"codeberg.org/danjones000/my-log/models"
+)
+
+func newNull(ff config.Formatters) (Formatter, error) {
+	return &Null{}, nil
+}
+
+type Null struct{}
+
+func (n *Null) Name() string {
+	return "zero"
+}
+
+func (n *Null) Meta(m models.Meta) (o []byte, err error) {
+	return
+}
+
+func (n *Null) Entry(e models.Entry) (o []byte, err error) {
+	return
+}
+
+func (n *Null) Log(l models.Log) (o []byte, err error) {
+	return
+}
+
+func (n *Null) Logs(logs []models.Log) (out []byte, err error) {
+	return
+}

formatters/null_test.go

@@ -0,0 +1,45 @@
+package formatters
+
+import (
+	"testing"
+	"time"
+
+	"codeberg.org/danjones000/my-log/models"
+	"github.com/stretchr/testify/assert"
+)
+
+var empty []byte
+
+func TestNullName(t *testing.T) {
+	f, err := New("zero")
+	assert.NoError(t, err)
+	assert.Equal(t, "zero", f.Name())
+}
+
+func TestNullMeta(t *testing.T) {
+	f, _ := New("zero")
+	o, err := f.Meta(models.Meta{"foo", 42})
+	assert.NoError(t, err)
+	assert.Equal(t, empty, o)
+}
+
+func TestNullEntry(t *testing.T) {
+	f, _ := New("zero")
+	o, err := f.Entry(models.Entry{"title", time.Now(), models.Metas{}})
+	assert.NoError(t, err)
+	assert.Equal(t, empty, o)
+}
+
+func TestNullLog(t *testing.T) {
+	f, _ := New("zero")
+	o, err := f.Log(models.Log{"jim", []models.Entry{{"title", time.Now(), models.Metas{}}}})
+	assert.NoError(t, err)
+	assert.Equal(t, empty, o)
+}
+
+func TestNullLogs(t *testing.T) {
+	f, _ := New("zero")
+	o, err := f.Logs([]models.Log{{"jim", []models.Entry{{"title", time.Now(), models.Metas{}}}}})
+	assert.NoError(t, err)
+	assert.Equal(t, empty, o)
+}