Yaml: remove empty-stream workaround in favor of go-yaml fix (#30789)

go.mod

@@ -104,7 +104,7 @@ require (
 	gitlab.com/bboehmke/sunny v0.17.0
 	go.bug.st/serial v1.7.1
 	go.uber.org/mock v0.6.0
-	go.yaml.in/yaml/v4 v4.0.0-rc.5
+	go.yaml.in/yaml/v4 v4.0.0-rc.5.0.20260613141257-7afcb0919cb5
 	golang.org/x/crypto v0.53.0
 	golang.org/x/crypto/x509roots/fallback v0.0.0-20260609182332-5f2de1a9f1e2
 	golang.org/x/exp v0.0.0-20260611194520-c48552f49976

go.sum

@@ -574,8 +574,8 @@ go.yaml.in/yaml/v2 v2.4.4 h1:tuyd0P+2Ont/d6e2rl3be67goVK4R6deVxCUX5vyPaQ=
 go.yaml.in/yaml/v2 v2.4.4/go.mod h1:gMZqIpDtDqOfM0uNfy0SkpRhvUryYH0Z6wdMYcacYXQ=
 go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
 go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
-go.yaml.in/yaml/v4 v4.0.0-rc.5 h1:JVliQq9EGOYaTgMi+k8BhUJyqcGk4ZqeuiN1Cirba9c=
-go.yaml.in/yaml/v4 v4.0.0-rc.5/go.mod h1:aZqd9kCMsGL7AuUv/m/PvWLdg5sjJsZ4oHDEnfPPfY0=
+go.yaml.in/yaml/v4 v4.0.0-rc.5.0.20260613141257-7afcb0919cb5 h1:FN2nHSMZESIAuZHWbZPsqsduWNnLLMaJ3cVNojwa5pg=
+go.yaml.in/yaml/v4 v4.0.0-rc.5.0.20260613141257-7afcb0919cb5/go.mod h1:aZqd9kCMsGL7AuUv/m/PvWLdg5sjJsZ4oHDEnfPPfY0=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=

server/db/settings/setting.go

@@ -15,9 +15,8 @@ import (
 
 	"github.com/evcc-io/evcc/server/db"
 	"github.com/evcc-io/evcc/util"
-	"github.com/evcc-io/evcc/util/yaml"
 	"github.com/samber/lo"
-	goyaml "go.yaml.in/yaml/v4"
+	"go.yaml.in/yaml/v4"
 	"gorm.io/gorm"
 )
 
@@ -136,7 +135,7 @@ func SetJson(key string, val any) error {
 
 func SetYaml(key string, val any) error {
 	var b bytes.Buffer
-	err := goyaml.NewEncoder(&b).Encode(val)
+	err := yaml.NewEncoder(&b).Encode(val)
 	if err == nil {
 		SetString(key, strings.TrimSpace(b.String()))
 	}

server/http_config_device_handler.go

@@ -22,9 +22,9 @@ import (
 	"github.com/evcc-io/evcc/tariff"
 	"github.com/evcc-io/evcc/util/config"
 	"github.com/evcc-io/evcc/util/templates"
-	"github.com/evcc-io/evcc/util/yaml"
 	"github.com/evcc-io/evcc/vehicle"
 	"github.com/gorilla/mux"
+	"go.yaml.in/yaml/v4"
 )
 
 func devicesConfig[T any](class templates.Class, h config.Handler[T], hidePrivate bool) ([]map[string]any, error) {

server/http_config_helper.go

@@ -16,9 +16,9 @@ import (
 	"github.com/evcc-io/evcc/util"
 	"github.com/evcc-io/evcc/util/config"
 	"github.com/evcc-io/evcc/util/templates"
-	"github.com/evcc-io/evcc/util/yaml"
 	"github.com/go-viper/mapstructure/v2"
 	"github.com/samber/lo"
+	"go.yaml.in/yaml/v4"
 )
 
 const (

server/http_global_settings_handler.go

@@ -12,8 +12,8 @@ import (
 	"github.com/evcc-io/evcc/core/keys"
 	"github.com/evcc-io/evcc/server/db/settings"
 	"github.com/evcc-io/evcc/util/redact"
-	"github.com/evcc-io/evcc/util/yaml"
 	"github.com/gorilla/mux"
+	"go.yaml.in/yaml/v4"
 )
 
 func settingsGetStringHandler(key string) http.HandlerFunc {

util/config/custom.go

@@ -1,8 +1,8 @@
 package config
 
 import (
-	"github.com/evcc-io/evcc/util/yaml"
 	"github.com/spf13/cast"
+	"go.yaml.in/yaml/v4"
 )
 
 // CustomDevice promotes an embedded yaml type to the top-level type

util/error_test.go

@@ -15,8 +15,8 @@ func TestYamlFloat(t *testing.T) {
 
 func TestYamlEmpty(t *testing.T) {
 	var res map[string]any
-	err := yaml.Unmarshal([]byte(""), &res)
-	require.ErrorContains(t, err, "no documents in stream")
+	require.NoError(t, yaml.Unmarshal([]byte(""), &res))
+	require.Nil(t, res)
 }
 
 func TestYamlCommentsOnly(t *testing.T) {
@@ -24,8 +24,8 @@ func TestYamlCommentsOnly(t *testing.T) {
 # another comment
 `
 	var res map[string]any
-	err := yaml.Unmarshal([]byte(b), &res)
-	require.ErrorContains(t, err, "no documents in stream")
+	require.NoError(t, yaml.Unmarshal([]byte(b), &res))
+	require.Nil(t, res)
 }
 
 func TestYamlError(t *testing.T) {

util/templates/funcmap.go

@@ -10,7 +10,7 @@ import (
 	"time"
 
 	"github.com/Masterminds/sprig/v3"
-	"github.com/evcc-io/evcc/util/yaml"
+	"go.yaml.in/yaml/v4"
 )
 
 func yamlQuote(value string) string {

util/templates/render_instance.go

@@ -6,7 +6,7 @@ import (
 	"os"
 
 	"github.com/evcc-io/evcc/util"
-	"github.com/evcc-io/evcc/util/yaml"
+	"go.yaml.in/yaml/v4"
 )
 
 // Instance is an actual instantiated template

util/yaml/yaml.go

@@ -1,20 +0,0 @@
-package yaml
-
-import (
-	"strings"
-
-	goyaml "go.yaml.in/yaml/v4"
-)
-
-func Marshal(data any) ([]byte, error) {
-	return goyaml.Marshal(data)
-}
-
-// Unmarshal invokes unmarshaler, ignoring empty document errors
-func Unmarshal(b []byte, res any) error {
-	err := goyaml.Unmarshal(b, res)
-	if err != nil && strings.Contains(err.Error(), "no documents in stream") {
-		err = nil
-	}
-	return err
-}