Fix rebuild with resources.Concat

Fixes #12017

config/allconfig/allconfig.go

@@ -663,7 +663,7 @@ type Configs struct {
 	// All below is set in Init.
 	Languages             langs.Languages
 	LanguagesDefaultFirst langs.Languages
-	ContentPathParser     paths.PathParser
+	ContentPathParser     *paths.PathParser
 
 	configLangs []config.AllProvider
 }
@@ -735,7 +735,7 @@ func (c *Configs) Init() error {
 	c.Languages = languages
 	c.LanguagesDefaultFirst = languagesDefaultFirst
 
-	c.ContentPathParser = paths.PathParser{LanguageIndex: languagesDefaultFirst.AsIndexSet(), IsLangDisabled: c.Base.IsLangDisabled}
+	c.ContentPathParser = &paths.PathParser{LanguageIndex: languagesDefaultFirst.AsIndexSet(), IsLangDisabled: c.Base.IsLangDisabled}
 
 	c.configLangs = make([]config.AllProvider, len(c.Languages))
 	for i, l := range c.LanguagesDefaultFirst {

config/allconfig/configlanguage.go

@@ -19,6 +19,7 @@ import (
 	"github.com/gohugoio/hugo/common/paths"
 	"github.com/gohugoio/hugo/common/urls"
 	"github.com/gohugoio/hugo/config"
+	"github.com/gohugoio/hugo/identity"
 	"github.com/gohugoio/hugo/langs"
 )
 
@@ -42,7 +43,7 @@ func (c ConfigLanguage) LanguagesDefaultFirst() langs.Languages {
 	return c.m.LanguagesDefaultFirst
 }
 
-func (c ConfigLanguage) PathParser() paths.PathParser {
+func (c ConfigLanguage) PathParser() *paths.PathParser {
 	return c.m.ContentPathParser
 }
 
@@ -133,6 +134,13 @@ func (c ConfigLanguage) Watching() bool {
 	return c.m.Base.Internal.Watch
 }
 
+func (c ConfigLanguage) NewIdentityManager(name string) identity.Manager {
+	if !c.Watching() {
+		return identity.NopManager
+	}
+	return identity.NewManager(name)
+}
+
 // GetConfigSection is mostly used in tests. The switch statement isn't complete, but what's in use.
 func (c ConfigLanguage) GetConfigSection(s string) any {
 	switch s {

config/configProvider.go

@@ -20,6 +20,7 @@ import (
 	"github.com/gohugoio/hugo/common/paths"
 	"github.com/gohugoio/hugo/common/types"
 	"github.com/gohugoio/hugo/common/urls"
+	"github.com/gohugoio/hugo/identity"
 	"github.com/gohugoio/hugo/langs"
 )
 
@@ -31,7 +32,7 @@ type AllProvider interface {
 	LanguagePrefix() string
 	BaseURL() urls.BaseURL
 	BaseURLLiveReload() urls.BaseURL
-	PathParser() paths.PathParser
+	PathParser() *paths.PathParser
 	Environment() string
 	IsMultihost() bool
 	IsMultiLingual() bool
@@ -57,6 +58,7 @@ type AllProvider interface {
 	BuildDrafts() bool
 	Running() bool
 	Watching() bool
+	NewIdentityManager(name string) identity.Manager
 	FastRenderMode() bool
 	PrintUnusedTemplates() bool
 	EnableMissingTranslationPlaceholders() bool