releaser: Prepare repository for 0.147.0-DEV

[ci skip]
releaser: Bump versions for release of 0.146.1
2026-08-30 02:02:38 +00:00 · 2025-04-10 16:59:48 +00:00 · 2025-04-10 16:44:46 +00:00 · 2025-04-10 18:41:01 +02:00 · 2025-04-10 15:13:26 +00:00 · 2025-04-10 14:57:56 +00:00
1946 changed files with 26206 additions and 34336 deletions
@@ -4,7 +4,7 @@ parameters:
 defaults: &defaults
  resource_class: large
  docker:
-      - image: bepsays/ci-hugoreleaser:1.22301.20401
+      - image: bepsays/ci-hugoreleaser:1.22400.20000
 environment: &buildenv
      GOMODCACHE: /root/project/gomodcache
 version: 2
@@ -58,7 +58,7 @@ jobs:
    environment:
        <<: [*buildenv]
    docker:
-    - image: bepsays/ci-hugoreleaser-linux-arm64:1.22301.20401
+    - image: bepsays/ci-hugoreleaser-linux-arm64:1.22400.20000
    steps:
      - *restore-cache
      - &attach-workspace
@@ -46,3 +46,4 @@ jobs:
          platforms: linux/amd64,linux/arm64
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
+          build-args: HUGO_BUILD_TAGS=extended,withdeploy
@@ -16,7 +16,7 @@ jobs:
  test:
    strategy:
      matrix:
-        go-version: [1.22.x, 1.23.x]
+        go-version: [1.23.x, 1.24.x]
        os: [ubuntu-latest, windows-latest] # macos disabled for now because of disk space issues.
    runs-on: ${{ matrix.os }}
    steps:
@@ -1,4 +1,4 @@
->**Note:** We would apprecitate if you hold on with any big refactorings (like renaming deprecated Go packages), mainly because of potential for extra merge work for future coming in in the near future.
+>**Note:** We would appreciate if you hold on with any big refactoring (like renaming deprecated Go packages), mainly because of potential for extra merge work for future coming in in the near future.

 # Contributing to Hugo

@@ -93,6 +93,7 @@ Most title/subjects should have a lower-cased prefix with a colon and one whites
 * If this commit touches many packages without a common functional topic, prefix with `all:` (e.g. `all: Reformat Go code`)
 * If this is a documentation update, prefix with `docs:`.
 * If nothing of the above applies, just leave the prefix out.
+* Note that the above excludes nouns seen in other repositories, e.g. "chore:".

 Also, if your commit references one or more GitHub issues, always end your commit message body with *See #1234* or *Fixes #1234*.
 Replace *1234* with the GitHub issue ID. The last example will close the issue when the commit is merged into *master*.
@@ -34,6 +34,7 @@ A fast and flexible static site generator built with love by [bep], [spf13], and
 [![Go Report Card](https://goreportcard.com/badge/github.com/gohugoio/hugo)](https://goreportcard.com/report/github.com/gohugoio/hugo)

 [Website] | [Installation] | [Documentation] | [Support] | [Contributing] | <a rel="me" href="https://fosstodon.org/@gohugoio">Mastodon</a>
+
 ## Overview

 Hugo is a [static site generator] written in [Go], optimized for speed and designed for flexibility. With its advanced templating system and fast asset pipelines, Hugo renders a complete site in seconds, often less.
@@ -69,6 +70,23 @@ See the [features] section of the documentation for a comprehensive summary of H
  <a href="https://www.jetbrains.com/go/?utm_source=OSS&utm_medium=referral&utm_campaign=hugo" target="_blank"><img src="https://raw.githubusercontent.com/gohugoio/gohugoioTheme/master/assets/images/sponsors/goland.svg" width="200" alt="The complete IDE crafted for professional Go developers."></a>
 </p>

+## Editions
+
+Hugo is available in three editions: standard, extended, and extended/deploy. While the standard edition provides core functionality, the extended and extended/deploy editions offer advanced features.
+
+Feature|extended edition|extended/deploy edition
+:--|:-:|:-:
+Encode to the WebP format when [processing images]. You can decode WebP images with any edition.|:heavy_check_mark:|:heavy_check_mark:
+[Transpile Sass to CSS] using the embedded LibSass transpiler. You can use the [Dart Sass] transpiler with any edition.|:heavy_check_mark:|:heavy_check_mark:
+Deploy your site directly to a Google Cloud Storage bucket, an AWS S3 bucket, or an Azure Storage container. See&nbsp;[details].|:x:|:heavy_check_mark:
+
+[dart sass]: https://gohugo.io/functions/css/sass/#dart-sass
+[processing images]: https://gohugo.io/content-management/image-processing/
+[transpile sass to css]: https://gohugo.io/functions/css/sass/
+[details]: https://gohugo.io/hosting-and-deployment/hugo-deploy/
+
+Unless your specific deployment needs require the extended/deploy edition, we recommend the extended edition.
+
 ## Installation

 Install Hugo from a [prebuilt binary], package manager, or package repository. Please see the installation instructions for your operating system:
@@ -80,15 +98,11 @@ Install Hugo from a [prebuilt binary], package manager, or package repository. P

 ## Build from source

-Hugo is available in two editions: standard and extended. With the extended edition you can:
-
- Encode to the WebP format when processing images. You can decode WebP images with either edition.
- Transpile Sass to CSS using the embedded LibSass transpiler. The extended edition is not required to use the Dart Sass transpiler.
-
 Prerequisites to build Hugo from source:

- Standard edition: Go 1.20 or later
- Extended edition: Go 1.20 or later, and GCC
+- Standard edition: Go 1.23.0 or later
+- Extended edition: Go 1.23.0 or later, and GCC
+- Extended/deploy edition: Go 1.23.0 or later, and GCC

 Build the standard edition:

@@ -102,6 +116,12 @@ Build the extended edition:
 CGO_ENABLED=1 go install -tags extended github.com/gohugoio/hugo@latest
 ```

+Build the extended/deploy edition:
+
+```text
+CGO_ENABLED=1 go install -tags extended,withdeploy github.com/gohugoio/hugo@latest
+```
+
 ## Star History

 [![Star History Chart](https://api.star-history.com/svg?repos=gohugoio/hugo&type=Timeline)](https://star-history.com/#gohugoio/hugo&Timeline)
@@ -149,7 +169,9 @@ Hugo stands on the shoulders of great open source libraries. Run `hugo env --log

 ```text
 github.com/BurntSushi/locker="v0.0.0-20171006230638-a6e239ea1c69"
-github.com/alecthomas/chroma/v2="v2.14.0"
+github.com/PuerkitoBio/goquery="v1.10.1"
+github.com/alecthomas/chroma/v2="v2.15.0"
+github.com/andybalholm/cascadia="v1.3.3"
 github.com/armon/go-radix="v1.0.1-0.20221118154546-54df44f2176c"
 github.com/bep/clocks="v0.5.0"
 github.com/bep/debounce="v1.2.0"
@@ -158,73 +180,77 @@ github.com/bep/goat="v0.5.0"
 github.com/bep/godartsass/v2="v2.3.2"
 github.com/bep/golibsass="v1.2.0"
 github.com/bep/gowebp="v0.3.0"
-github.com/bep/imagemeta="v0.8.3"
+github.com/bep/imagemeta="v0.8.4"
 github.com/bep/lazycache="v0.7.0"
 github.com/bep/logg="v0.4.0"
 github.com/bep/mclib="v1.20400.20402"
 github.com/bep/overlayfs="v0.9.2"
-github.com/bep/simplecobra="v0.4.0"
+github.com/bep/simplecobra="v0.5.0"
 github.com/bep/tmc="v0.5.1"
 github.com/cespare/xxhash/v2="v2.3.0"
 github.com/clbanning/mxj/v2="v2.7.0"
-github.com/cli/safeexec="v1.0.1"
 github.com/cpuguy83/go-md2man/v2="v2.0.4"
 github.com/disintegration/gift="v1.2.1"
-github.com/dlclark/regexp2="v1.11.0"
-github.com/evanw/esbuild="v0.24.0"
+github.com/dlclark/regexp2="v1.11.5"
+github.com/dop251/goja="v0.0.0-20250125213203-5ef83b82af17"
+github.com/evanw/esbuild="v0.24.2"
 github.com/fatih/color="v1.18.0"
 github.com/frankban/quicktest="v1.14.6"
 github.com/fsnotify/fsnotify="v1.8.0"
-github.com/getkin/kin-openapi="v0.123.0"
+github.com/getkin/kin-openapi="v0.129.0"
 github.com/ghodss/yaml="v1.0.0"
-github.com/go-openapi/jsonpointer="v0.20.2"
-github.com/go-openapi/swag="v0.22.8"
+github.com/go-openapi/jsonpointer="v0.21.0"
+github.com/go-openapi/swag="v0.23.0"
+github.com/go-sourcemap/sourcemap="v2.1.4+incompatible"
 github.com/gobuffalo/flect="v1.0.3"
 github.com/gobwas/glob="v0.2.3"
 github.com/gohugoio/go-i18n/v2="v2.1.3-0.20230805085216-e63c13218d0e"
-github.com/gohugoio/hashstructure="v0.1.0"
+github.com/gohugoio/hashstructure="v0.5.0"
 github.com/gohugoio/httpcache="v0.7.0"
 github.com/gohugoio/hugo-goldmark-extensions/extras="v0.2.0"
 github.com/gohugoio/hugo-goldmark-extensions/passthrough="v0.3.0"
 github.com/gohugoio/locales="v0.14.0"
 github.com/gohugoio/localescompressed="v1.0.1"
+github.com/golang/freetype="v0.0.0-20170609003504-e2365dfdc4a0"
 github.com/google/go-cmp="v0.6.0"
+github.com/google/pprof="v0.0.0-20250208200701-d0013a598941"
 github.com/gorilla/websocket="v1.5.3"
 github.com/hairyhenderson/go-codeowners="v0.7.0"
 github.com/hashicorp/golang-lru/v2="v2.0.7"
-github.com/invopop/yaml="v0.2.0"
 github.com/jdkato/prose="v1.2.1"
 github.com/josharian/intern="v1.0.0"
 github.com/kr/pretty="v0.3.1"
 github.com/kr/text="v0.2.0"
 github.com/kyokomi/emoji/v2="v2.2.13"
+github.com/lucasb-eyer/go-colorful="v1.2.0"
 github.com/mailru/easyjson="v0.7.7"
 github.com/makeworld-the-better-one/dither/v2="v2.4.0"
 github.com/marekm4/color-extractor="v1.2.1"
 github.com/mattn/go-colorable="v0.1.13"
 github.com/mattn/go-isatty="v0.0.20"
 github.com/mattn/go-runewidth="v0.0.9"
+github.com/mazznoer/csscolorparser="v0.1.5"
 github.com/mitchellh/mapstructure="v1.5.1-0.20231216201459-8508981c8b6c"
 github.com/mohae/deepcopy="v0.0.0-20170929034955-c48cc78d4826"
 github.com/muesli/smartcrop="v0.3.0"
 github.com/niklasfasching/go-org="v1.7.0"
+github.com/oasdiff/yaml3="v0.0.0-20241210130736-a94c01f36349"
+github.com/oasdiff/yaml="v0.0.0-20241210131133-6b86fb107d80"
 github.com/olekukonko/tablewriter="v0.0.5"
 github.com/pbnjay/memory="v0.0.0-20210728143218-7b4eea64cf58"
 github.com/pelletier/go-toml/v2="v2.2.3"
 github.com/perimeterx/marshmallow="v1.1.5"
 github.com/pkg/browser="v0.0.0-20240102092130-5ac0b6a4141c"
 github.com/pkg/errors="v0.9.1"
+github.com/rivo/uniseg="v0.4.7"
 github.com/rogpeppe/go-internal="v1.13.1"
 github.com/russross/blackfriday/v2="v2.1.0"
-github.com/sass/dart-sass/compiler="1.81.0"
-github.com/sass/dart-sass/implementation="1.81.0"
-github.com/sass/dart-sass/protocol="3.1.0"
 github.com/sass/libsass="3.6.6"
 github.com/spf13/afero="v1.11.0"
 github.com/spf13/cast="v1.7.1"
 github.com/spf13/cobra="v1.8.1"
 github.com/spf13/fsync="v0.10.1"
-github.com/spf13/pflag="v1.0.5"
+github.com/spf13/pflag="v1.0.6"
 github.com/tdewolff/minify/v2="v2.20.37"
 github.com/tdewolff/parse/v2="v2.7.15"
 github.com/tetratelabs/wazero="v1.8.2"
@@ -232,18 +258,22 @@ github.com/webmproject/libwebp="v1.3.2"
 github.com/yuin/goldmark-emoji="v1.0.4"
 github.com/yuin/goldmark="v1.7.8"
 go.uber.org/automaxprocs="v1.5.3"
-golang.org/x/crypto="v0.31.0"
-golang.org/x/exp="v0.0.0-20221031165847-c99f073a8326"
-golang.org/x/image="v0.22.0"
-golang.org/x/mod="v0.22.0"
-golang.org/x/net="v0.33.0"
-golang.org/x/sync="v0.10.0"
-golang.org/x/sys="v0.28.0"
-golang.org/x/text="v0.21.0"
-golang.org/x/tools="v0.28.0"
-google.golang.org/protobuf="v1.35.2"
+golang.org/x/crypto="v0.33.0"
+golang.org/x/exp="v0.0.0-20250210185358-939b2ce775ac"
+golang.org/x/image="v0.24.0"
+golang.org/x/mod="v0.23.0"
+golang.org/x/net="v0.35.0"
+golang.org/x/sync="v0.11.0"
+golang.org/x/sys="v0.30.0"
+golang.org/x/text="v0.22.0"
+golang.org/x/tools="v0.30.0"
+golang.org/x/xerrors="v0.0.0-20240903120638-7835f813f4da"
+gonum.org/v1/plot="v0.15.0"
+google.golang.org/protobuf="v1.36.5"
 gopkg.in/yaml.v2="v2.4.0"
 gopkg.in/yaml.v3="v3.0.1"
+oss.terrastruct.com/d2="v0.6.9"
+oss.terrastruct.com/util-go="v0.0.0-20241005222610-44c011a04896"
 rsc.io/qr="v0.2.0"
 software.sslmate.com/src/go-pkcs12="v0.2.0"
 ```
@@ -176,11 +176,12 @@ func (c *Cache) ClearMatching(predicatePartition func(k string, p PartitionManag
 }

 // ClearOnRebuild prepares the cache for a new rebuild taking the given changeset into account.
-func (c *Cache) ClearOnRebuild(changeset ...identity.Identity) {
+// predicate is optional and will clear any entry for which it returns true.
+func (c *Cache) ClearOnRebuild(predicate func(k, v any) bool, changeset ...identity.Identity) {
 	g := rungroup.Run[PartitionManager](context.Background(), rungroup.Config[PartitionManager]{
 		NumWorkers: len(c.partitions),
 		Handle: func(ctx context.Context, partition PartitionManager) error {
-			partition.clearOnRebuild(changeset...)
+			partition.clearOnRebuild(predicate, changeset...)
 			return nil
 		},
 	})
@@ -479,7 +480,12 @@ func (p *Partition[K, V]) clearMatching(predicate func(k, v any) bool) {
 	})
 }

-func (p *Partition[K, V]) clearOnRebuild(changeset ...identity.Identity) {
+func (p *Partition[K, V]) clearOnRebuild(predicate func(k, v any) bool, changeset ...identity.Identity) {
+	if predicate == nil {
+		predicate = func(k, v any) bool {
+			return false
+		}
+	}
 	opts := p.getOptions()
 	if opts.ClearWhen == ClearNever {
 		return
@@ -525,7 +531,7 @@ func (p *Partition[K, V]) clearOnRebuild(changeset ...identity.Identity) {
 	// Second pass needs to be done in a separate loop to catch any
 	// elements marked as stale in the other partitions.
 	p.c.DeleteFunc(func(key K, v V) bool {
-		if shouldDelete(key, v) {
+		if predicate(key, v) || shouldDelete(key, v) {
 			p.trace.Log(
 				logg.StringFunc(
 					func() string {
@@ -601,7 +607,7 @@ type PartitionManager interface {
 	adjustMaxSize(addend int) int
 	getMaxSize() int
 	getOptions() OptionsPartition
-	clearOnRebuild(changeset ...identity.Identity)
+	clearOnRebuild(predicate func(k, v any) bool, changeset ...identity.Identity)
 	clearMatching(predicate func(k, v any) bool)
 	clearStale()
 }
@@ -147,13 +147,13 @@ func TestClear(t *testing.T) {

 	c.Assert(cache.Keys(predicateAll), qt.HasLen, 4)

-	cache.ClearOnRebuild()
+	cache.ClearOnRebuild(nil)

 	// Stale items are always cleared.
 	c.Assert(cache.Keys(predicateAll), qt.HasLen, 2)

 	cache = newTestCache(t)
-	cache.ClearOnRebuild(identity.StringIdentity("changed"))
+	cache.ClearOnRebuild(nil, identity.StringIdentity("changed"))

 	c.Assert(cache.Keys(nil), qt.HasLen, 1)

@@ -191,16 +191,16 @@ func TestPanicInCreate(t *testing.T) {
 		return err
 	}

-	for i := 0; i < 3; i++ {
-		for j := 0; j < 3; j++ {
+	for i := range 3 {
+		for range 3 {
 			c.Assert(willPanic(i), qt.PanicMatches, fmt.Sprintf("panic-%d", i))
 			c.Assert(willErr(i), qt.ErrorMatches, fmt.Sprintf("error-%d", i))
 		}
 	}

 	// Test the same keys again without the panic.
-	for i := 0; i < 3; i++ {
-		for j := 0; j < 3; j++ {
+	for i := range 3 {
+		for range 3 {
 			v, err := p1.GetOrCreate(fmt.Sprintf("panic-%d", i), func(key string) (testItem, error) {
 				return testItem{
 					name: key,
@@ -59,7 +59,7 @@ dir = ":resourceDir/_gen"
 		caches, err := filecache.NewCaches(p)
 		c.Assert(err, qt.IsNil)
 		cache := caches[name]
-		for i := 0; i < 10; i++ {
+		for i := range 10 {
 			id := fmt.Sprintf("i%d", i)
 			cache.GetOrCreateBytes(id, func() ([]byte, error) {
 				return []byte("abc"), nil
@@ -74,7 +74,7 @@ dir = ":resourceDir/_gen"
 		c.Assert(err, qt.IsNil)
 		c.Assert(count, qt.Equals, 5, msg)

-		for i := 0; i < 10; i++ {
+		for i := range 10 {
 			id := fmt.Sprintf("i%d", i)
 			v := cache.GetString(id)
 			if i < 5 {
@@ -97,7 +97,7 @@ dir = ":resourceDir/_gen"
 		c.Assert(count, qt.Equals, 4)

 		// Now only the i5 should be left.
-		for i := 0; i < 10; i++ {
+		for i := range 10 {
 			id := fmt.Sprintf("i%d", i)
 			v := cache.GetString(id)
 			if i != 5 {
@@ -105,7 +105,7 @@ dir = ":cacheDir/c"
 		}

 		for _, ca := range []*filecache.Cache{caches.ImageCache(), caches.AssetsCache(), caches.GetJSONCache(), caches.GetCSVCache()} {
-			for i := 0; i < 2; i++ {
+			for range 2 {
 				info, r, err := ca.GetOrCreate("a", rf("abc"))
 				c.Assert(err, qt.IsNil)
 				c.Assert(r, qt.Not(qt.IsNil))
@@ -193,11 +193,11 @@ dir = "/cache/c"

 	var wg sync.WaitGroup

-	for i := 0; i < 50; i++ {
+	for i := range 50 {
 		wg.Add(1)
 		go func(i int) {
 			defer wg.Done()
-			for j := 0; j < 20; j++ {
+			for range 20 {
 				ca := caches.Get(cacheName)
 				c.Assert(ca, qt.Not(qt.IsNil))
 				filename, data := filenameData(i)
@@ -42,7 +42,7 @@ var DefaultConfig = Config{

 // Config holds the configuration for the HTTP cache.
 type Config struct {
-	// Configures the HTTP cache behaviour (RFC 9111).
+	// Configures the HTTP cache behavior (RFC 9111).
 	// When this is not enabled for a resource, Hugo will go straight to the file cache.
 	Cache Cache

@@ -52,7 +52,7 @@ type Config struct {
 }

 type Cache struct {
-	// Enable HTTP cache behaviour (RFC 9111) for these rsources.
+	// Enable HTTP cache behavior (RFC 9111) for these resources.
 	For GlobMatcher
 }

@@ -122,6 +122,10 @@ type GlobMatcher struct {
 	Includes []string
 }

+func (gm GlobMatcher) IsZero() bool {
+	return len(gm.Includes) == 0 && len(gm.Excludes) == 0
+}
+
 type ConfigCompiled struct {
 	For         predicate.P[string]
 	PollConfigs []PollConfigCompiled
@@ -155,6 +159,9 @@ func (p PollConfigCompiled) IsZero() bool {
 }

 func (gm *GlobMatcher) CompilePredicate() (func(string) bool, error) {
+	if gm.IsZero() {
+		panic("no includes or excludes")
+	}
 	var p predicate.P[string]
 	for _, include := range gm.Includes {
 		g, err := glob.Compile(include, '/')
@@ -181,7 +188,7 @@ func (gm *GlobMatcher) CompilePredicate() (func(string) bool, error) {
 	return p, nil
 }

-func DecodeConfig(bcfg config.BaseConfig, m map[string]any) (Config, error) {
+func DecodeConfig(_ config.BaseConfig, m map[string]any) (Config, error) {
 	if len(m) == 0 {
 		return DefaultConfig, nil
 	}
@@ -203,5 +210,20 @@ func DecodeConfig(bcfg config.BaseConfig, m map[string]any) (Config, error) {
 		return c, err
 	}

+	if c.Cache.For.IsZero() {
+		c.Cache.For = DefaultConfig.Cache.For
+	}
+
+	for pci := range c.Polls {
+		if c.Polls[pci].For.IsZero() {
+			c.Polls[pci].For = DefaultConfig.Cache.For
+			c.Polls[pci].Disable = true
+		}
+	}
+
+	if len(c.Polls) == 0 {
+		c.Polls = DefaultConfig.Polls
+	}
+
 	return c, nil
 }
@@ -22,6 +22,8 @@ import (
 )

 func TestConfigCustom(t *testing.T) {
+	t.Parallel()
+
 	files := `
 -- hugo.toml --
 [httpcache]
@@ -51,6 +53,8 @@ includes = ["**gohugo.io**"]
 }

 func TestConfigDefault(t *testing.T) {
+	t.Parallel()
+
 	files := `
 -- hugo.toml --
 `
@@ -62,3 +66,30 @@ func TestConfigDefault(t *testing.T) {
 	b.Assert(compiled.For("https://gohugo.io/foo.jpg"), qt.IsFalse)
 	b.Assert(compiled.PollConfigFor("https://gohugo.io/foo.jpg").Config.Disable, qt.IsTrue)
 }
+
+func TestConfigPollsOnly(t *testing.T) {
+	t.Parallel()
+	files := `
+-- hugo.toml --
+[httpcache]
+[[httpcache.polls]]
+low = "5s"
+high = "32s"
+[httpcache.polls.for]
+includes = ["**gohugo.io**"]
+		
+	
+`
+
+	b := hugolib.Test(t, files)
+
+	compiled := b.H.Configs.Base.C.HTTPCache
+
+	b.Assert(compiled.For("https://gohugo.io/posts.json"), qt.IsFalse)
+	b.Assert(compiled.For("https://gohugo.io/foo.jpg"), qt.IsFalse)
+
+	pc := compiled.PollConfigFor("https://gohugo.io/foo.jpg")
+	b.Assert(pc.Config.Low, qt.Equals, 5*time.Second)
+	b.Assert(pc.Config.High, qt.Equals, 32*time.Second)
+	b.Assert(compiled.PollConfigFor("https://example.com/foo.jpg").IsZero(), qt.IsTrue)
+}
@@ -17,6 +17,7 @@ import (
 	"testing"

 	qt "github.com/frankban/quicktest"
+	"github.com/gohugoio/hugo/config"
 )

 func TestGlobMatcher(t *testing.T) {
@@ -40,3 +41,33 @@ func TestGlobMatcher(t *testing.T) {
 	c.Assert(p("foo/bar/foo.css"), qt.IsFalse)
 	c.Assert(p("foo/bar/foo.xml"), qt.IsTrue)
 }
+
+func TestDefaultConfig(t *testing.T) {
+	c := qt.New(t)
+
+	_, err := DefaultConfig.Compile()
+	c.Assert(err, qt.IsNil)
+}
+
+func TestDecodeConfigInjectsDefaultAndCompiles(t *testing.T) {
+	c := qt.New(t)
+
+	cfg, err := DecodeConfig(config.BaseConfig{}, map[string]interface{}{})
+	c.Assert(err, qt.IsNil)
+	c.Assert(cfg, qt.DeepEquals, DefaultConfig)
+
+	_, err = cfg.Compile()
+	c.Assert(err, qt.IsNil)
+
+	cfg, err = DecodeConfig(config.BaseConfig{}, map[string]any{
+		"cache": map[string]any{
+			"polls": []map[string]any{
+				{"disable": true},
+			},
+		},
+	})
+	c.Assert(err, qt.IsNil)
+
+	_, err = cfg.Compile()
+	c.Assert(err, qt.IsNil)
+}
@@ -26,6 +26,7 @@ import (
 	"path/filepath"
 	"reflect"
 	"regexp"
+	"slices"
 	"sort"
 	"strings"
 	"sync"
@@ -102,7 +103,7 @@ func (c *Inspector) MethodsFromTypes(include []reflect.Type, exclude []reflect.T
 	}

 	for _, t := range include {
-		for i := 0; i < t.NumMethod(); i++ {
+		for i := range t.NumMethod() {

 			m := t.Method(i)
 			if excludes[m.Name] || seen[m.Name] {
@@ -122,7 +123,7 @@ func (c *Inspector) MethodsFromTypes(include []reflect.Type, exclude []reflect.T

 			method := Method{Owner: t, OwnerName: ownerName, Name: m.Name}

-			for i := 0; i < numIn; i++ {
+			for i := range numIn {
 				in := m.Type.In(i)

 				name, pkg := nameAndPackage(in)
@@ -137,7 +138,7 @@ func (c *Inspector) MethodsFromTypes(include []reflect.Type, exclude []reflect.T
 			numOut := m.Type.NumOut()

 			if numOut > 0 {
-				for i := 0; i < numOut; i++ {
+				for i := range numOut {
 					out := m.Type.Out(i)
 					name, pkg := nameAndPackage(out)

@@ -304,7 +305,7 @@ func (m Method) inOutStr() string {
 	}

 	args := make([]string, len(m.In))
-	for i := 0; i < len(args); i++ {
+	for i := range args {
 		args[i] = fmt.Sprintf("arg%d", i)
 	}
 	return "(" + strings.Join(args, ", ") + ")"
@@ -316,7 +317,7 @@ func (m Method) inStr() string {
 	}

 	args := make([]string, len(m.In))
-	for i := 0; i < len(args); i++ {
+	for i := range args {
 		args[i] = fmt.Sprintf("arg%d %s", i, m.In[i])
 	}
 	return "(" + strings.Join(args, ", ") + ")"
@@ -339,7 +340,7 @@ func (m Method) outStrNamed() string {
 	}

 	outs := make([]string, len(m.Out))
-	for i := 0; i < len(outs); i++ {
+	for i := range outs {
 		outs[i] = fmt.Sprintf("o%d %s", i, m.Out[i])
 	}

@@ -435,7 +436,7 @@ func (m Methods) ToMarshalJSON(receiver, pkgPath string, excludes ...string) (st
 		// Exclude self
 		for i, pkgImp := range pkgImports {
 			if pkgImp == pkgPath {
-				pkgImports = append(pkgImports[:i], pkgImports[i+1:]...)
+				pkgImports = slices.Delete(pkgImports, i, i+1)
 			}
 		}
 	}
@@ -101,8 +101,8 @@ type configKey struct {

 // This is the root command.
 type rootCommand struct {
-	Printf  func(format string, v ...interface{})
-	Println func(a ...interface{})
+	Printf  func(format string, v ...any)
+	Println func(a ...any)
 	StdOut  io.Writer
 	StdErr  io.Writer

@@ -431,12 +431,12 @@ func (r *rootCommand) PreRun(cd, runner *simplecobra.Commandeer) error {
 	// Used by mkcert (server).
 	log.SetOutput(r.StdOut)

-	r.Printf = func(format string, v ...interface{}) {
+	r.Printf = func(format string, v ...any) {
 		if !r.quiet {
 			fmt.Fprintf(r.StdOut, format, v...)
 		}
 	}
-	r.Println = func(a ...interface{}) {
+	r.Println = func(a ...any) {
 		if !r.quiet {
 			fmt.Fprintln(r.StdOut, a...)
 		}
@@ -448,7 +448,7 @@ func (r *rootCommand) PreRun(cd, runner *simplecobra.Commandeer) error {
 		return err
 	}
 	// Set up the global logger early to allow info deprecations during config load.
-	loggers.InitGlobalLogger(r.logger.Level(), false)
+	loggers.SetGlobalLogger(r.logger)

 	r.changesFromBuild = make(chan []identity.Identity, 10)

@@ -90,7 +90,7 @@ func (c *configCommand) Run(ctx context.Context, cd *simplecobra.Commandeer, arg
 		os.Stdout.Write(buf.Bytes())
 	default:
 		// Decode the JSON to a map[string]interface{} and then unmarshal it again to the correct format.
-		var m map[string]interface{}
+		var m map[string]any
 		if err := json.Unmarshal(buf.Bytes(), &m); err != nil {
 			return err
 		}
@@ -12,7 +12,6 @@
 // limitations under the License.

 //go:build withdeploy
-// +build withdeploy

 package commands

@@ -12,7 +12,6 @@
 // limitations under the License.

 //go:build !withdeploy
-// +build !withdeploy

 // Copyright 2024 The Hugo Authors. All rights reserved.
 //
@@ -21,6 +21,7 @@ import (
 	"os"
 	"path"
 	"path/filepath"
+	"slices"
 	"strings"

 	"github.com/alecthomas/chroma/v2"
@@ -49,6 +50,7 @@ func newGenCommand() *genCommand {
 		highlightStyle         string
 		lineNumbersInlineStyle string
 		lineNumbersTableStyle  string
+		omitEmpty              bool
 	)

 	newChromaStyles := func() simplecobra.Commander {
@@ -60,6 +62,10 @@ func newGenCommand() *genCommand {
 See https://xyproto.github.io/splash/docs/all.html for a preview of the available styles`,

 			run: func(ctx context.Context, cd *simplecobra.Commandeer, r *rootCommand, args []string) error {
+				style = strings.ToLower(style)
+				if !slices.Contains(styles.Names(), style) {
+					return fmt.Errorf("invalid style: %s", style)
+				}
 				builder := styles.Get(style).Builder()
 				if highlightStyle != "" {
 					builder.Add(chroma.LineHighlight, highlightStyle)
@@ -74,7 +80,14 @@ See https://xyproto.github.io/splash/docs/all.html for a preview of the availabl
 				if err != nil {
 					return err
 				}
-				formatter := html.New(html.WithAllClasses(true))
+
+				var formatter *html.Formatter
+				if omitEmpty {
+					formatter = html.New(html.WithClasses(true))
+				} else {
+					formatter = html.New(html.WithAllClasses(true))
+				}
+
 				w := os.Stdout
 				fmt.Fprintf(w, "/* Generated using: hugo %s */\n\n", strings.Join(os.Args[1:], " "))
 				formatter.WriteCSS(w, style)
@@ -90,6 +103,8 @@ See https://xyproto.github.io/splash/docs/all.html for a preview of the availabl
 				_ = cmd.RegisterFlagCompletionFunc("lineNumbersInlineStyle", cobra.NoFileCompletions)
 				cmd.PersistentFlags().StringVar(&lineNumbersTableStyle, "lineNumbersTableStyle", "", `foreground and background colors for table line numbers, e.g. --lineNumbersTableStyle "#fff000 bg:#000fff"`)
 				_ = cmd.RegisterFlagCompletionFunc("lineNumbersTableStyle", cobra.NoFileCompletions)
+				cmd.PersistentFlags().BoolVar(&omitEmpty, "omitEmpty", false, `omit empty CSS rules`)
+				_ = cmd.RegisterFlagCompletionFunc("omitEmpty", cobra.NoFileCompletions)
 			},
 		}
 	}
@@ -144,7 +159,7 @@ url: %s

 		return &simpleCommand{
 			name:  "doc",
-			short: "Generate Markdown documentation for the Hugo CLI.",
+			short: "Generate Markdown documentation for the Hugo CLI",
 			long: `Generate Markdown documentation for the Hugo CLI.
 			This command is, mostly, used to create up-to-date documentation
 	of Hugo's command-line interface for https://gohugo.io/.
@@ -169,13 +184,13 @@ url: %s
 				prepender := func(filename string) string {
 					name := filepath.Base(filename)
 					base := strings.TrimSuffix(name, path.Ext(name))
-					url := "/commands/" + strings.ToLower(base) + "/"
+					url := "/docs/reference/commands/" + strings.ToLower(base) + "/"
 					return fmt.Sprintf(gendocFrontmatterTemplate, strings.Replace(base, "_", " ", -1), base, url)
 				}

 				linkHandler := func(name string) string {
 					base := strings.TrimSuffix(name, path.Ext(name))
-					return "/commands/" + strings.ToLower(base) + "/"
+					return "/docs/reference/commands/" + strings.ToLower(base) + "/"
 				}
 				r.Println("Generating Hugo command-line documentation in", gendocdir, "...")
 				doc.GenMarkdownTreeCustom(cd.CobraCommand.Root(), gendocdir, prepender, linkHandler)
@@ -196,7 +211,7 @@ url: %s
 	newDocsHelper := func() simplecobra.Commander {
 		return &simpleCommand{
 			name:  "docshelper",
-			short: "Generate some data files for the Hugo docs.",
+			short: "Generate some data files for the Hugo docs",

 			run: func(ctx context.Context, cd *simplecobra.Commandeer, r *rootCommand, args []string) error {
 				r.Println("Generate docs data to", docsHelperTarget)
@@ -217,7 +232,7 @@ url: %s
 				}

 				// Decode the JSON to a map[string]interface{} and then unmarshal it again to the correct format.
-				var m map[string]interface{}
+				var m map[string]any
 				if err := json.Unmarshal(buf.Bytes(), &m); err != nil {
 					return err
 				}
@@ -663,7 +663,20 @@ func (c *hugoBuilder) handleEvents(watcher *watcher.Batcher,
 	var n int
 	for _, ev := range evs {
 		keep := true
-		if ev.Has(fsnotify.Create) || ev.Has(fsnotify.Write) {
+		// Write and rename operations are often followed by CHMOD.
+		// There may be valid use cases for rebuilding the site on CHMOD,
+		// but that will require more complex logic than this simple conditional.
+		// On OS X this seems to be related to Spotlight, see:
+		// https://github.com/go-fsnotify/fsnotify/issues/15
+		// A workaround is to put your site(s) on the Spotlight exception list,
+		// but that may be a little mysterious for most end users.
+		// So, for now, we skip reload on CHMOD.
+		// We do have to check for WRITE though. On slower laptops a Chmod
+		// could be aggregated with other important events, and we still want
+		// to rebuild on those
+		if ev.Op == fsnotify.Chmod {
+			keep = false
+		} else if ev.Has(fsnotify.Create) || ev.Has(fsnotify.Write) {
 			if _, err := os.Stat(ev.Name); err != nil {
 				keep = false
 			}
@@ -805,21 +818,6 @@ func (c *hugoBuilder) handleEvents(watcher *watcher.Batcher,
 			continue
 		}

-		// Write and rename operations are often followed by CHMOD.
-		// There may be valid use cases for rebuilding the site on CHMOD,
-		// but that will require more complex logic than this simple conditional.
-		// On OS X this seems to be related to Spotlight, see:
-		// https://github.com/go-fsnotify/fsnotify/issues/15
-		// A workaround is to put your site(s) on the Spotlight exception list,
-		// but that may be a little mysterious for most end users.
-		// So, for now, we skip reload on CHMOD.
-		// We do have to check for WRITE though. On slower laptops a Chmod
-		// could be aggregated with other important events, and we still want
-		// to rebuild on those
-		if ev.Op&(fsnotify.Chmod|fsnotify.Write|fsnotify.Create) == fsnotify.Chmod {
-			continue
-		}
-
 		walkAdder := func(path string, f hugofs.FileMetaInfo) error {
 			if f.IsDir() {
 				c.r.logger.Println("adding created directory to watchlist", path)
@@ -44,16 +44,16 @@ func newModCommands() *modCommands {

 	npmCommand := &simpleCommand{
 		name:  "npm",
-		short: "Various npm helpers.",
+		short: "Various npm helpers",
 		long:  `Various npm (Node package manager) helpers.`,
 		commands: []simplecobra.Commander{
 			&simpleCommand{
 				name:  "pack",
-				short: "Experimental: Prepares and writes a composite package.json file for your project.",
+				short: "Experimental: Prepares and writes a composite package.json file for your project",
 				long: `Prepares and writes a composite package.json file for your project.

 On first run it creates a "package.hugo.json" in the project root if not already there. This file will be used as a template file
-with the base dependency set. 
+with the base dependency set.

 This set will be merged with all "package.hugo.json" files found in the dependency tree, picking the version closest to the project.

@@ -80,12 +80,12 @@ so this may/will change in future versions of Hugo.
 		commands: []simplecobra.Commander{
 			&simpleCommand{
 				name:  "init",
-				short: "Initialize this project as a Hugo Module.",
+				short: "Initialize this project as a Hugo Module",
 				long: `Initialize this project as a Hugo Module.
 	It will try to guess the module path, but you may help by passing it as an argument, e.g:
-	
+
 		hugo mod init github.com/gohugoio/testshortcodes
-	
+
 	Note that Hugo Modules supports multi-module projects, so you can initialize a Hugo Module
 	inside a subfolder on GitHub, as one example.
 	`,
@@ -111,7 +111,7 @@ so this may/will change in future versions of Hugo.
 			},
 			&simpleCommand{
 				name:  "verify",
-				short: "Verify dependencies.",
+				short: "Verify dependencies",
 				long:  `Verify checks that the dependencies of the current module, which are stored in a local downloaded source cache, have not been modified since being downloaded.`,
 				withc: func(cmd *cobra.Command, r *rootCommand) {
 					cmd.ValidArgsFunction = cobra.NoFileCompletions
@@ -129,7 +129,7 @@ so this may/will change in future versions of Hugo.
 			},
 			&simpleCommand{
 				name:  "graph",
-				short: "Print a module dependency graph.",
+				short: "Print a module dependency graph",
 				long: `Print a module dependency graph with information about module status (disabled, vendored).
 Note that for vendored modules, that is the version listed and not the one from go.mod.
 `,
@@ -149,7 +149,7 @@ Note that for vendored modules, that is the version listed and not the one from
 			},
 			&simpleCommand{
 				name:  "clean",
-				short: "Delete the Hugo Module cache for the current project.",
+				short: "Delete the Hugo Module cache for the current project",
 				long:  `Delete the Hugo Module cache for the current project.`,
 				withc: func(cmd *cobra.Command, r *rootCommand) {
 					cmd.ValidArgsFunction = cobra.NoFileCompletions
@@ -175,7 +175,7 @@ Note that for vendored modules, that is the version listed and not the one from
 			},
 			&simpleCommand{
 				name:  "tidy",
-				short: "Remove unused entries in go.mod and go.sum.",
+				short: "Remove unused entries in go.mod and go.sum",
 				withc: func(cmd *cobra.Command, r *rootCommand) {
 					cmd.ValidArgsFunction = cobra.NoFileCompletions
 					applyLocalFlagsBuildConfig(cmd, r)
@@ -190,7 +190,7 @@ Note that for vendored modules, that is the version listed and not the one from
 			},
 			&simpleCommand{
 				name:  "vendor",
-				short: "Vendor all module dependencies into the _vendor directory.",
+				short: "Vendor all module dependencies into the _vendor directory",
 				long: `Vendor all module dependencies into the _vendor directory.
 	If a module is vendored, that is where Hugo will look for it's dependencies.
 	`,
@@ -209,16 +209,16 @@ Note that for vendored modules, that is the version listed and not the one from

 			&simpleCommand{
 				name:  "get",
-				short: "Resolves dependencies in your current Hugo Project.",
+				short: "Resolves dependencies in your current Hugo project",
 				long: `
-Resolves dependencies in your current Hugo Project.
+Resolves dependencies in your current Hugo project.

 Some examples:

 Install the latest version possible for a given module:

    hugo mod get github.com/gohugoio/testshortcodes
-    
+
 Install a specific version:

    hugo mod get github.com/gohugoio/testshortcodes@v0.3.0
@@ -144,7 +144,7 @@ according to your needs.`,
 					createpath := paths.AbsPathify(conf.configs.Base.WorkingDir, filepath.Join(conf.configs.Base.ThemesDir, args[0]))
 					r.Println("Creating new theme in", createpath)

-					err = skeletons.CreateTheme(createpath, sourceFs)
+					err = skeletons.CreateTheme(createpath, sourceFs, format)
 					if err != nil {
 						return err
 					}
@@ -152,7 +152,14 @@ according to your needs.`,
 					return nil
 				},
 				withc: func(cmd *cobra.Command, r *rootCommand) {
-					cmd.ValidArgsFunction = cobra.NoFileCompletions
+					cmd.ValidArgsFunction = func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+						if len(args) != 0 {
+							return []string{}, cobra.ShellCompDirectiveNoFileComp
+						}
+						return []string{}, cobra.ShellCompDirectiveNoFileComp | cobra.ShellCompDirectiveFilterDirs
+					}
+					cmd.Flags().StringVar(&format, "format", "toml", "preferred file format (toml, yaml or json)")
+					_ = cmd.RegisterFlagCompletionFunc("format", cobra.FixedCompletions([]string{"toml", "yaml", "json"}, cobra.ShellCompDirectiveNoFileComp))
 				},
 			},
 		},
@@ -32,7 +32,7 @@ func newReleaseCommand() simplecobra.Commander {

 	return &simpleCommand{
 		name:  "release",
-		short: "Release a new version of Hugo.",
+		short: "Release a new version of Hugo",
 		run: func(ctx context.Context, cd *simplecobra.Commandeer, r *rootCommand, args []string) error {
 			rel, err := releaser.New(skipPush, try, step)
 			if err != nil {
@@ -23,6 +23,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"maps"
 	"net"
 	"net/http"
 	_ "net/http/pprof"
@@ -48,6 +49,7 @@ import (
 	"github.com/fsnotify/fsnotify"
 	"github.com/gohugoio/hugo/common/herrors"
 	"github.com/gohugoio/hugo/common/hugo"
+	"github.com/gohugoio/hugo/tpl/tplimpl"

 	"github.com/gohugoio/hugo/common/types"
 	"github.com/gohugoio/hugo/common/urls"
@@ -57,7 +59,6 @@ import (
 	"github.com/gohugoio/hugo/hugolib"
 	"github.com/gohugoio/hugo/hugolib/filesystems"
 	"github.com/gohugoio/hugo/livereload"
-	"github.com/gohugoio/hugo/tpl"
 	"github.com/gohugoio/hugo/transform"
 	"github.com/gohugoio/hugo/transform/livereloadinject"
 	"github.com/spf13/afero"
@@ -84,6 +85,10 @@ const (
 	configChangeGoWork = "go work file"
 )

+const (
+	hugoHeaderRedirect = "X-Hugo-Redirect"
+)
+
 func newHugoBuilder(r *rootCommand, s *serverCommand, onConfigLoaded ...func(reloaded bool) error) *hugoBuilder {
 	var visitedURLs *types.EvictingQueue[string]
 	if s != nil && !s.disableFastRender {
@@ -115,7 +120,7 @@ func newServerCommand() *serverCommand {
 		commands: []simplecobra.Commander{
 			&simpleCommand{
 				name:  "trust",
-				short: "Install the local CA in the system trust store.",
+				short: "Install the local CA in the system trust store",
 				run: func(ctx context.Context, cd *simplecobra.Commandeer, r *rootCommand, args []string) error {
 					action := "-install"
 					if uninstall {
@@ -191,9 +196,7 @@ func (f *fileChangeDetector) PrepareNew() {
 	}

 	f.prev = make(map[string]uint64)
-	for k, v := range f.current {
-		f.prev[k] = v
-	}
+	maps.Copy(f.prev, f.current)
 	f.current = make(map[string]uint64)
 }

@@ -307,67 +310,65 @@ func (f *fileServer) createEndpoint(i int) (*http.ServeMux, net.Listener, string
 				w.Header().Set(header.Key, header.Value)
 			}

-			if redirect := serverConfig.MatchRedirect(requestURI); !redirect.IsZero() {
-				// fullName := filepath.Join(dir, filepath.FromSlash(path.Clean("/"+name)))
-				doRedirect := true
-				// This matches Netlify's behavior and is needed for SPA behavior.
-				// See https://docs.netlify.com/routing/redirects/rewrites-proxies/
-				if !redirect.Force {
-					path := filepath.Clean(strings.TrimPrefix(requestURI, baseURL.Path()))
-					if root != "" {
-						path = filepath.Join(root, path)
-					}
-					var fs afero.Fs
-					f.c.withConf(func(conf *commonConfig) {
-						fs = conf.fs.PublishDirServer
-					})
-
-					fi, err := fs.Stat(path)
-
-					if err == nil {
-						if fi.IsDir() {
-							// There will be overlapping directories, so we
-							// need to check for a file.
-							_, err = fs.Stat(filepath.Join(path, "index.html"))
-							doRedirect = err != nil
-						} else {
-							doRedirect = false
+			if canRedirect(requestURI, r) {
+				if redirect := serverConfig.MatchRedirect(requestURI, r.Header); !redirect.IsZero() {
+					doRedirect := true
+					// This matches Netlify's behavior and is needed for SPA behavior.
+					// See https://docs.netlify.com/routing/redirects/rewrites-proxies/
+					if !redirect.Force {
+						path := filepath.Clean(strings.TrimPrefix(requestURI, baseURL.Path()))
+						if root != "" {
+							path = filepath.Join(root, path)
 						}
-					}
-				}
+						var fs afero.Fs
+						f.c.withConf(func(conf *commonConfig) {
+							fs = conf.fs.PublishDirServer
+						})
+
+						fi, err := fs.Stat(path)

-				if doRedirect {
-					switch redirect.Status {
-					case 404:
-						w.WriteHeader(404)
-						file, err := fs.Open(strings.TrimPrefix(redirect.To, baseURL.Path()))
 						if err == nil {
-							defer file.Close()
-							io.Copy(w, file)
-						} else {
-							fmt.Fprintln(w, "<h1>Page Not Found</h1>")
+							if fi.IsDir() {
+								// There will be overlapping directories, so we
+								// need to check for a file.
+								_, err = fs.Stat(filepath.Join(path, "index.html"))
+								doRedirect = err != nil
+							} else {
+								doRedirect = false
+							}
 						}
-						return
-					case 200:
-						if r2 := f.rewriteRequest(r, strings.TrimPrefix(redirect.To, baseURL.Path())); r2 != nil {
-							requestURI = redirect.To
-							r = r2
-						}
-					default:
-						w.Header().Set("Content-Type", "")
-						http.Redirect(w, r, redirect.To, redirect.Status)
-						return
+					}

+					if doRedirect {
+						w.Header().Set(hugoHeaderRedirect, "true")
+						switch redirect.Status {
+						case 404:
+							w.WriteHeader(404)
+							file, err := fs.Open(strings.TrimPrefix(redirect.To, baseURL.Path()))
+							if err == nil {
+								defer file.Close()
+								io.Copy(w, file)
+							} else {
+								fmt.Fprintln(w, "<h1>Page Not Found</h1>")
+							}
+							return
+						case 200:
+							if r2 := f.rewriteRequest(r, strings.TrimPrefix(redirect.To, baseURL.Path())); r2 != nil {
+								requestURI = redirect.To
+								r = r2
+							}
+						default:
+							w.Header().Set("Content-Type", "")
+							http.Redirect(w, r, redirect.To, redirect.Status)
+							return
+
+						}
 					}
 				}
-
 			}

 			if f.c.fastRenderMode && f.c.errState.buildErr() == nil {
-				// Sec-Fetch-Mode should be sent by all recent browser versions, see https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Sec-Fetch-Mode#navigate
-				// Fall back to the file extension if not set.
-				// The main take here is that we don't want to have CSS/JS files etc. partake in this logic.
-				if r.Header.Get("Sec-Fetch-Mode") == "navigate" || strings.HasSuffix(requestURI, "/") || strings.HasSuffix(requestURI, "html") || strings.HasSuffix(requestURI, "htm") {
+				if isNavigation(requestURI, r) {
 					if !f.c.visitedURLs.Contains(requestURI) {
 						// If not already on stack, re-render that single page.
 						if err := f.c.partialReRender(requestURI); err != nil {
@@ -757,7 +758,7 @@ func (c *serverCommand) createServerPorts(cd *simplecobra.Commandeer) error {
 			c.serverPorts = make([]serverPortListener, len(conf.configs.Languages))
 		}
 		currentServerPort := c.serverPort
-		for i := 0; i < len(c.serverPorts); i++ {
+		for i := range c.serverPorts {
 			l, err := net.Listen("tcp", net.JoinHostPort(c.serverInterface, strconv.Itoa(currentServerPort)))
 			if err == nil {
 				c.serverPorts[i] = serverPortListener{ln: l, p: currentServerPort}
@@ -896,16 +897,16 @@ func (c *serverCommand) serve() error {
 	// To allow the en user to change the error template while the server is running, we use
 	// the freshest template we can provide.
 	var (
-		errTempl     tpl.Template
-		templHandler tpl.TemplateHandler
+		errTempl     *tplimpl.TemplInfo
+		templHandler *tplimpl.TemplateStore
 	)
-	getErrorTemplateAndHandler := func(h *hugolib.HugoSites) (tpl.Template, tpl.TemplateHandler) {
+	getErrorTemplateAndHandler := func(h *hugolib.HugoSites) (*tplimpl.TemplInfo, *tplimpl.TemplateStore) {
 		if h == nil {
 			return errTempl, templHandler
 		}
-		templHandler := h.Tmpl()
-		errTempl, found := templHandler.Lookup("_server/error.html")
-		if !found {
+		templHandler := h.GetTemplateStore()
+		errTempl := templHandler.LookupByPath("/_server/error.html")
+		if errTempl == nil {
 			panic("template server/error.html not found")
 		}
 		return errTempl, templHandler
@@ -1233,3 +1234,24 @@ func formatByteCount(b uint64) string {
 	return fmt.Sprintf("%.1f %cB",
 		float64(b)/float64(div), "kMGTPE"[exp])
 }
+
+func canRedirect(requestURIWithoutQuery string, r *http.Request) bool {
+	if r.Header.Get(hugoHeaderRedirect) != "" {
+		return false
+	}
+	return isNavigation(requestURIWithoutQuery, r)
+}
+
+// Sec-Fetch-Mode should be sent by all recent browser versions, see https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Sec-Fetch-Mode#navigate
+// Fall back to the file extension if not set.
+// The main take here is that we don't want to have CSS/JS files etc. partake in this logic.
+func isNavigation(requestURIWithoutQuery string, r *http.Request) bool {
+	return r.Header.Get("Sec-Fetch-Mode") == "navigate" || isPropablyHTMLRequest(requestURIWithoutQuery)
+}
+
+func isPropablyHTMLRequest(requestURIWithoutQuery string) bool {
+	if strings.HasSuffix(requestURIWithoutQuery, "/") || strings.HasSuffix(requestURIWithoutQuery, "html") || strings.HasSuffix(requestURIWithoutQuery, "htm") {
+		return true
+	}
+	return !strings.Contains(requestURIWithoutQuery, ".")
+}
@@ -117,7 +117,7 @@ func appendToInterfaceSliceFromValues(slice1, slice2 reflect.Value) ([]any, erro
 			tos = append(tos, nil)
 			continue
 		}
-		for i := 0; i < slice.Len(); i++ {
+		for i := range slice.Len() {
 			tos = append(tos, slice.Index(i).Interface())
 		}
 	}
@@ -128,7 +128,7 @@ func appendToInterfaceSliceFromValues(slice1, slice2 reflect.Value) ([]any, erro
 func appendToInterfaceSlice(tov reflect.Value, from ...any) ([]any, error) {
 	var tos []any

-	for i := 0; i < tov.Len(); i++ {
+	for i := range tov.Len() {
 		tos = append(tos, tov.Index(i).Interface())
 	}

@@ -13,6 +13,8 @@

 package collections

+import "slices"
+
 import "sync"

 // Stack is a simple LIFO stack that is safe for concurrent use.
@@ -73,7 +75,7 @@ func (s *Stack[T]) DrainMatching(predicate func(T) bool) []T {
 	for i := len(s.items) - 1; i >= 0; i-- {
 		if predicate(s.items[i]) {
 			items = append(items, s.items[i])
-			s.items = append(s.items[:i], s.items[i+1:]...)
+			s.items = slices.Delete(s.items, i, i+1)
 		}
 	}
 	return items
@@ -23,6 +23,7 @@ const (
 	WarnFrontMatterParamsOverrides = "warning-frontmatter-params-overrides"
 	WarnRenderShortcodesInHTML     = "warning-rendershortcodes-in-html"
 	WarnGoldmarkRawHTML            = "warning-goldmark-raw-html"
+	WarnPartialSuperfluousPrefix   = "warning-partial-superfluous-prefix"
 )

 // Field/method names with special meaning.
@@ -37,12 +37,12 @@ func TestXxHashFromReaderPara(t *testing.T) {
 	c := qt.New(t)

 	var wg sync.WaitGroup
-	for i := 0; i < 10; i++ {
+	for i := range 10 {
 		i := i
 		wg.Add(1)
 		go func() {
 			defer wg.Done()
-			for j := 0; j < 100; j++ {
+			for j := range 100 {
 				s := strings.Repeat("Hello ", i+j+1*42)
 				r := strings.NewReader(s)
 				got, size, err := XXHashFromReader(r)
@@ -144,8 +144,8 @@ func BenchmarkHashString(b *testing.B) {
 }

 func BenchmarkHashMap(b *testing.B) {
-	m := map[string]interface{}{}
-	for i := 0; i < 1000; i++ {
+	m := map[string]any{}
+	for i := range 1000 {
 		m[fmt.Sprintf("key%d", i)] = i
 	}

@@ -152,10 +152,7 @@ func locateError(r io.Reader, le FileError, matches LineMatcherFn) *ErrorContext
 	}

 	if ectx.Position.LineNumber > 0 {
-		low := ectx.Position.LineNumber - 3
-		if low < 0 {
-			low = 0
-		}
+		low := max(ectx.Position.LineNumber-3, 0)

 		if ectx.Position.LineNumber > 2 {
 			ectx.LinesPos = 2
@@ -163,10 +160,7 @@ func locateError(r io.Reader, le FileError, matches LineMatcherFn) *ErrorContext
 			ectx.LinesPos = ectx.Position.LineNumber - 1
 		}

-		high := ectx.Position.LineNumber + 2
-		if high > len(lines) {
-			high = len(lines)
-		}
+		high := min(ectx.Position.LineNumber+2, len(lines))

 		ectx.Lines = lines[low:high]

@@ -27,7 +27,6 @@ import (
 	"sync"

 	"github.com/bep/logg"
-	"github.com/cli/safeexec"
 	"github.com/gohugoio/hugo/common/loggers"
 	"github.com/gohugoio/hugo/common/maps"
 	"github.com/gohugoio/hugo/config"
@@ -113,18 +112,6 @@ func IsNotFound(err error) bool {
 	return errors.As(err, &notFoundErr)
 }

-// SafeCommand is a wrapper around os/exec Command which uses a LookPath
-// implementation that does not search in current directory before looking in PATH.
-// See https://github.com/cli/safeexec and the linked issues.
-func SafeCommand(name string, arg ...string) (*exec.Cmd, error) {
-	bin, err := safeexec.LookPath(name)
-	if err != nil {
-		return nil, err
-	}
-
-	return exec.Command(bin, arg...), nil
-}
-
 // Exec enforces a security policy for commands run via os/exec.
 type Exec struct {
 	sc         security.Config
@@ -197,7 +184,7 @@ func (e *Exec) Npx(name string, arg ...any) (Runner, error) {
 		tryFuncs := map[binaryLocation]tryFunc{
 			binaryLocationNodeModules: func() func(...any) (Runner, error) {
 				nodeBinFilename := filepath.Join(e.workingDir, nodeModulesBinPath, name)
-				_, err := safeexec.LookPath(nodeBinFilename)
+				_, err := exec.LookPath(nodeBinFilename)
 				if err != nil {
 					return nil
 				}
@@ -215,7 +202,7 @@ func (e *Exec) Npx(name string, arg ...any) (Runner, error) {
 				}
 			},
 			binaryLocationPath: func() func(...any) (Runner, error) {
-				if _, err := safeexec.LookPath(name); err != nil {
+				if _, err := exec.LookPath(name); err != nil {
 					return nil
 				}
 				return func(arg2 ...any) (Runner, error) {
@@ -346,7 +333,7 @@ func (c *commandeer) command(arg ...any) (*cmdWrapper, error) {
 		bin = c.fullyQualifiedName
 	} else {
 		var err error
-		bin, err = safeexec.LookPath(c.name)
+		bin, err = exec.LookPath(c.name)
 		if err != nil {
 			return nil, &NotFoundError{
 				name:   c.name,
@@ -384,7 +371,7 @@ func InPath(binaryName string) bool {
 	if strings.Contains(binaryName, "/") {
 		panic("binary name should not contain any slash")
 	}
-	_, err := safeexec.LookPath(binaryName)
+	_, err := exec.LookPath(binaryName)
 	return err == nil
 }

@@ -394,7 +381,7 @@ func LookPath(binaryName string) string {
 	if strings.Contains(binaryName, "/") {
 		panic("binary name should not contain any slash")
 	}
-	s, err := safeexec.LookPath(binaryName)
+	s, err := exec.LookPath(binaryName)
 	if err != nil {
 		return ""
 	}
@@ -74,6 +74,16 @@ func IsTruthful(in any) bool {
 	}
 }

+// IsMap reports whether v is a map.
+func IsMap(v any) bool {
+	return reflect.ValueOf(v).Kind() == reflect.Map
+}
+
+// IsSlice reports whether v is a slice.
+func IsSlice(v any) bool {
+	return reflect.ValueOf(v).Kind() == reflect.Slice
+}
+
 var zeroType = reflect.TypeOf((*types.Zeroer)(nil)).Elem()

 // IsTruthfulValue returns whether the given value has a meaningful truth value.
@@ -124,12 +134,7 @@ type methodKey struct {
 	name string
 }

-type methods struct {
-	sync.RWMutex
-	cache map[methodKey]int
-}
-
-var methodCache = &methods{cache: make(map[methodKey]int)}
+var methodCache sync.Map

 // GetMethodByName is the same as reflect.Value.MethodByName, but it caches the
 // type lookup.
@@ -147,22 +152,16 @@ func GetMethodByName(v reflect.Value, name string) reflect.Value {
 // -1 if no such method exists.
 func GetMethodIndexByName(tp reflect.Type, name string) int {
 	k := methodKey{tp, name}
-	methodCache.RLock()
-	index, found := methodCache.cache[k]
-	methodCache.RUnlock()
+	v, found := methodCache.Load(k)
 	if found {
-		return index
+		return v.(int)
 	}
-
-	methodCache.Lock()
-	defer methodCache.Unlock()
-
 	m, ok := tp.MethodByName(name)
-	index = m.Index
+	index := m.Index
 	if !ok {
 		index = -1
 	}
-	methodCache.cache[k] = index
+	methodCache.Store(k, index)

 	if !ok {
 		return -1
@@ -235,7 +234,7 @@ func ToSliceAny(v any) ([]any, bool) {
 		vvv := reflect.ValueOf(v)
 		if vvv.Kind() == reflect.Slice {
 			out := make([]any, vvv.Len())
-			for i := 0; i < vvv.Len(); i++ {
+			for i := range vvv.Len() {
 				out[i] = vvv.Index(i).Interface()
 			}
 			return out, true
@@ -134,3 +134,17 @@ func BenchmarkGetMethodByName(b *testing.B) {
 		}
 	}
 }
+
+func BenchmarkGetMethodByNamePara(b *testing.B) {
+	v := reflect.ValueOf(&testStruct{})
+	methods := []string{"Method1", "Method2", "Method3", "Method4", "Method5"}
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			for _, method := range methods {
+				_ = GetMethodByName(v, method)
+			}
+		}
+	})
+}
@@ -16,6 +16,7 @@ package hstrings
 import (
 	"fmt"
 	"regexp"
+	"slices"
 	"strings"
 	"sync"

@@ -50,12 +51,7 @@ func (s StringEqualFold) Eq(s2 any) bool {

 // EqualAny returns whether a string is equal to any of the given strings.
 func EqualAny(a string, b ...string) bool {
-	for _, s := range b {
-		if a == s {
-			return true
-		}
-	}
-	return false
+	return slices.Contains(b, a)
 }

 // regexpCache represents a cache of regexp objects protected by a mutex.
@@ -103,12 +99,7 @@ func GetOrCompileRegexp(pattern string) (re *regexp.Regexp, err error) {
 // InSlice checks if a string is an element of a slice of strings
 // and returns a boolean value.
 func InSlice(arr []string, el string) bool {
-	for _, v := range arr {
-		if v == el {
-			return true
-		}
-	}
-	return false
+	return slices.Contains(arr, el)
 }

 // InSlicEqualFold checks if a string is an element of a slice of strings
@@ -137,7 +128,7 @@ func ToString(v any) (string, bool) {
 	return "", false
 }

-type Tuple struct {
-	First  string
-	Second string
-}
+type (
+	Strings2 [2]string
+	Strings3 [3]string
+)
@@ -46,7 +46,7 @@ func TestHasBytesWriter(t *testing.T) {
 		return strings.Repeat("ab cfo", r.Intn(33))
 	}

-	for i := 0; i < 22; i++ {
+	for range 22 {
 		h, w := neww()
 		fmt.Fprint(w, rndStr()+"abc __foobar"+rndStr())
 		c.Assert(h.Patterns[0].Match, qt.Equals, true)
@@ -139,9 +139,13 @@ func (i HugoInfo) IsMultilingual() bool {
 	return i.conf.IsMultilingual()
 }

-type contextKey string
+type contextKey uint8

-var markupScope = hcontext.NewContextDispatcher[string](contextKey("markupScope"))
+const (
+	contextKeyMarkupScope contextKey = iota
+)
+
+var markupScope = hcontext.NewContextDispatcher[string](contextKeyMarkupScope)

 type Context struct{}

@@ -411,19 +415,36 @@ func IsDartSassGeV2() bool {
 // 2. Their theme to work for at least the last few Hugo versions.
 func Deprecate(item, alternative string, version string) {
 	level := deprecationLogLevelFromVersion(version)
-	DeprecateLevel(item, alternative, version, level)
+	deprecateLevel(item, alternative, version, level)
+}
+
+// See Deprecate for details.
+func DeprecateWithLogger(item, alternative string, version string, log logg.Logger) {
+	level := deprecationLogLevelFromVersion(version)
+	deprecateLevelWithLogger(item, alternative, version, level, log)
+}
+
+// DeprecateLevelMin informs about a deprecation starting at the given version, but with a minimum log level.
+func DeprecateLevelMin(item, alternative string, version string, minLevel logg.Level) {
+	level := max(deprecationLogLevelFromVersion(version), minLevel)
+	deprecateLevel(item, alternative, version, level)
+}
+
+// deprecateLevel informs about a deprecation logging at the given level.
+func deprecateLevel(item, alternative, version string, level logg.Level) {
+	deprecateLevelWithLogger(item, alternative, version, level, loggers.Log().Logger())
 }

 // DeprecateLevel informs about a deprecation logging at the given level.
-func DeprecateLevel(item, alternative, version string, level logg.Level) {
+func deprecateLevelWithLogger(item, alternative, version string, level logg.Level, log logg.Logger) {
 	var msg string
 	if level == logg.LevelError {
-		msg = fmt.Sprintf("%s was deprecated in Hugo %s and will be removed in Hugo %s. %s", item, version, CurrentVersion.Next().ReleaseVersion(), alternative)
+		msg = fmt.Sprintf("%s was deprecated in Hugo %s and subsequently removed. %s", item, version, alternative)
 	} else {
 		msg = fmt.Sprintf("%s was deprecated in Hugo %s and will be removed in a future release. %s", item, version, alternative)
 	}

-	loggers.Log().Logger().WithLevel(level).WithField(loggers.FieldNameCmd, "deprecated").Logf("%s", msg)
+	log.WithLevel(level).WithField(loggers.FieldNameCmd, "deprecated").Logf("%s", msg)
 }

 // We usually do about one minor version a month.
@@ -434,11 +455,11 @@ func deprecationLogLevelFromVersion(ver string) logg.Level {
 	to := CurrentVersion
 	minorDiff := to.Minor - from.Minor
 	switch {
-	case minorDiff >= 12:
-		// Start failing the build after about a year.
+	case minorDiff >= 15:
+		// Start failing the build after about 15 months.
 		return logg.LevelError
-	case minorDiff >= 6:
-		// Start printing warnings after about six months.
+	case minorDiff >= 3:
+		// Start printing warnings after about 3 months.
 		return logg.LevelWarn
 	default:
 		return logg.LevelInfo
@@ -57,11 +57,11 @@ func TestDeprecationLogLevelFromVersion(t *testing.T) {
 	c.Assert(deprecationLogLevelFromVersion("0.55.0"), qt.Equals, logg.LevelError)
 	ver := CurrentVersion
 	c.Assert(deprecationLogLevelFromVersion(ver.String()), qt.Equals, logg.LevelInfo)
-	ver.Minor -= 1
-	c.Assert(deprecationLogLevelFromVersion(ver.String()), qt.Equals, logg.LevelInfo)
-	ver.Minor -= 6
+	ver.Minor -= 3
 	c.Assert(deprecationLogLevelFromVersion(ver.String()), qt.Equals, logg.LevelWarn)
-	ver.Minor -= 6
+	ver.Minor -= 4
+	c.Assert(deprecationLogLevelFromVersion(ver.String()), qt.Equals, logg.LevelWarn)
+	ver.Minor -= 13
 	c.Assert(deprecationLogLevelFromVersion(ver.String()), qt.Equals, logg.LevelError)

 	// Added just to find the threshold for where we can remove deprecated items.
@@ -12,7 +12,6 @@
 // limitations under the License.

 //go:build extended
-// +build extended

 package hugo

@@ -12,7 +12,6 @@
 // limitations under the License.

 //go:build !extended
-// +build !extended

 package hugo

@@ -12,7 +12,6 @@
 // limitations under the License.

 //go:build withdeploy
-// +build withdeploy

 package hugo

@@ -12,7 +12,6 @@
 // limitations under the License.

 //go:build !withdeploy
-// +build !withdeploy

 package hugo

@@ -17,7 +17,7 @@ package hugo
 // This should be the only one.
 var CurrentVersion = Version{
 	Major:      0,
-	Minor:      143,
+	Minor:      147,
 	PatchLevel: 0,
 	Suffix:     "-DEV",
 }
@@ -37,7 +37,7 @@ func TestLogDistinct(t *testing.T) {

 	l := loggers.New(opts)

-	for i := 0; i < 10; i++ {
+	for range 10 {
 		l.Errorln("error 1")
 		l.Errorln("error 2")
 		l.Warnln("warn 1")
@@ -137,7 +137,7 @@ func TestReset(t *testing.T) {

 	l := loggers.New(opts)

-	for i := 0; i < 3; i++ {
+	for range 3 {
 		l.Errorln("error 1")
 		l.Errorln("error 2")
 		l.Errorln("error 1")
@@ -21,7 +21,15 @@ import (
 	"github.com/bep/logg"
 )

-func InitGlobalLogger(level logg.Level, panicOnWarnings bool) {
+// SetGlobalLogger sets the global logger.
+// This is used in a few places in Hugo, e.g. deprecated functions.
+func SetGlobalLogger(logger Logger) {
+	logMu.Lock()
+	defer logMu.Unlock()
+	log = logger
+}
+
+func initGlobalLogger(level logg.Level, panicOnWarnings bool) {
 	logMu.Lock()
 	defer logMu.Unlock()
 	var logHookLast func(e *logg.Entry) error
@@ -50,5 +58,5 @@ func Log() Logger {
 var log Logger

 func init() {
-	InitGlobalLogger(logg.LevelWarn, false)
+	initGlobalLogger(logg.LevelWarn, false)
 }
@@ -69,6 +69,14 @@ func (c *Cache[K, T]) GetOrCreate(key K, create func() (T, error)) (T, error) {
 	return v, nil
 }

+// Contains returns whether the given key exists in the cache.
+func (c *Cache[K, T]) Contains(key K) bool {
+	c.RLock()
+	_, found := c.m[key]
+	c.RUnlock()
+	return found
+}
+
 // InitAndGet initializes the cache if not already done and returns the value for the given key.
 // The init state will be reset on Reset or Drain.
 func (c *Cache[K, T]) InitAndGet(key K, init func(get func(key K) (T, bool), set func(key K, value T)) error) (T, error) {
@@ -108,6 +116,17 @@ func (c *Cache[K, T]) Set(key K, value T) {
 	c.Unlock()
 }

+// SetIfAbsent sets the given key to the given value if the key does not already exist in the cache.
+func (c *Cache[K, T]) SetIfAbsent(key K, value T) {
+	c.RLock()
+	if _, found := c.get(key); !found {
+		c.RUnlock()
+		c.Set(key, value)
+	} else {
+		c.RUnlock()
+	}
+}
+
 func (c *Cache[K, T]) set(key K, value T) {
 	c.m[key] = value
 }
@@ -141,7 +160,7 @@ func (c *Cache[K, T]) Len() int {

 func (c *Cache[K, T]) Reset() {
 	c.Lock()
-	c.m = make(map[K]T)
+	clear(c.m)
 	c.hasBeenInitialized = false
 	c.Unlock()
 }
@@ -73,10 +73,14 @@ func TestPrepareParams(t *testing.T) {
 	for i, test := range tests {
 		t.Run(fmt.Sprint(i), func(t *testing.T) {
 			// PrepareParams modifies input.
+			prepareClone := PrepareParamsClone(test.input)
 			PrepareParams(test.input)
 			if !reflect.DeepEqual(test.expected, test.input) {
 				t.Errorf("[%d] Expected\n%#v, got\n%#v\n", i, test.expected, test.input)
 			}
+			if !reflect.DeepEqual(test.expected, prepareClone) {
+				t.Errorf("[%d] Expected\n%#v, got\n%#v\n", i, test.expected, prepareClone)
+			}
 		})
 	}
 }
@@ -14,6 +14,8 @@
 package maps

 import (
+	"slices"
+
 	"github.com/gohugoio/hugo/common/hashing"
 )

@@ -56,6 +58,15 @@ func (m *Ordered[K, T]) Get(key K) (T, bool) {
 	return value, found
 }

+// Has returns whether the given key exists in the map.
+func (m *Ordered[K, T]) Has(key K) bool {
+	if m == nil {
+		return false
+	}
+	_, found := m.values[key]
+	return found
+}
+
 // Delete deletes the value for the given key.
 func (m *Ordered[K, T]) Delete(key K) {
 	if m == nil {
@@ -64,7 +75,7 @@ func (m *Ordered[K, T]) Delete(key K) {
 	delete(m.values, key)
 	for i, k := range m.keys {
 		if k == key {
-			m.keys = append(m.keys[:i], m.keys[i+1:]...)
+			m.keys = slices.Delete(m.keys, i, i+1)
 			break
 		}
 	}
@@ -303,7 +303,7 @@ func toMergeStrategy(v any) ParamsMergeStrategy {
 }

 // PrepareParams
-// * makes all the keys in the given map lower cased and will do so
+// * makes all the keys in the given map lower cased and will do so recursively.
 // * This will modify the map given.
 // * Any nested map[interface{}]interface{}, map[string]interface{},map[string]string  will be converted to Params.
 // * Any _merge value will be converted to proper type and value.
@@ -343,3 +343,42 @@ func PrepareParams(m Params) {
 		}
 	}
 }
+
+// PrepareParamsClone is like PrepareParams, but it does not modify the input.
+func PrepareParamsClone(m Params) Params {
+	m2 := make(Params)
+	for k, v := range m {
+		var retyped bool
+		lKey := strings.ToLower(k)
+		if lKey == MergeStrategyKey {
+			v = toMergeStrategy(v)
+			retyped = true
+		} else {
+			switch vv := v.(type) {
+			case map[any]any:
+				var p Params = cast.ToStringMap(v)
+				v = PrepareParamsClone(p)
+				retyped = true
+			case map[string]any:
+				var p Params = v.(map[string]any)
+				v = PrepareParamsClone(p)
+				retyped = true
+			case map[string]string:
+				p := make(Params)
+				for k, v := range vv {
+					p[k] = v
+				}
+				v = p
+				PrepareParams(p)
+				retyped = true
+			}
+		}
+
+		if retyped || k != lKey {
+			m2[lKey] = v
+		} else {
+			m2[k] = v
+		}
+	}
+	return m2
+}
@@ -140,7 +140,7 @@ func TestScratchInParallel(t *testing.T) {
 	for i := 1; i <= 10; i++ {
 		wg.Add(1)
 		go func(j int) {
-			for k := 0; k < 10; k++ {
+			for k := range 10 {
 				newVal := int64(k + j)

 				_, err := scratch.Add(key, newVal)
@@ -42,7 +42,7 @@ func TestPara(t *testing.T) {
 	c.Run("Order", func(c *qt.C) {
 		n := 500
 		ints := make([]int, n)
-		for i := 0; i < n; i++ {
+		for i := range n {
 			ints[i] = i
 		}

@@ -51,7 +51,7 @@ func TestPara(t *testing.T) {

 		var result []int
 		var mu sync.Mutex
-		for i := 0; i < n; i++ {
+		for i := range n {
 			i := i
 			r.Run(func() error {
 				mu.Lock()
@@ -78,7 +78,7 @@ func TestPara(t *testing.T) {

 		var counter int64

-		for i := 0; i < n; i++ {
+		for range n {
 			r.Run(func() error {
 				atomic.AddInt64(&counter, 1)
 				time.Sleep(1 * time.Millisecond)
@@ -23,6 +23,11 @@ import (
 	"github.com/gohugoio/hugo/common/types"
 	"github.com/gohugoio/hugo/hugofs/files"
 	"github.com/gohugoio/hugo/identity"
+	"github.com/gohugoio/hugo/resources/kinds"
+)
+
+const (
+	identifierBaseof = "baseof"
 )

 // PathParser parses a path into a Path.
@@ -33,6 +38,10 @@ type PathParser struct {
 	// Reports whether the given language is disabled.
 	IsLangDisabled func(string) bool

+	// IsOutputFormat reports whether the given name is a valid output format.
+	// The second argument is optional.
+	IsOutputFormat func(name, ext string) bool
+
 	// Reports whether the given ext is a content file.
 	IsContentExt func(string) bool
 }
@@ -83,13 +92,10 @@ func (pp *PathParser) Parse(c, s string) *Path {
 }

 func (pp *PathParser) newPath(component string) *Path {
-	return &Path{
-		component:             component,
-		posContainerLow:       -1,
-		posContainerHigh:      -1,
-		posSectionHigh:        -1,
-		posIdentifierLanguage: -1,
-	}
+	p := &Path{}
+	p.reset()
+	p.component = component
+	return p
 }

 func (pp *PathParser) parse(component, s string) (*Path, error) {
@@ -114,10 +120,91 @@ func (pp *PathParser) parse(component, s string) (*Path, error) {
 	return p, nil
 }

-func (pp *PathParser) doParse(component, s string, p *Path) (*Path, error) {
-	hasLang := pp.LanguageIndex != nil
-	hasLang = hasLang && (component == files.ComponentFolderContent || component == files.ComponentFolderLayouts)
+func (pp *PathParser) parseIdentifier(component, s string, p *Path, i, lastDot int) {
+	if p.posContainerHigh != -1 {
+		return
+	}
+	mayHaveLang := pp.LanguageIndex != nil
+	mayHaveLang = mayHaveLang && (component == files.ComponentFolderContent || component == files.ComponentFolderLayouts)
+	mayHaveOutputFormat := component == files.ComponentFolderLayouts
+	mayHaveKind := mayHaveOutputFormat

+	var found bool
+	var high int
+	if len(p.identifiers) > 0 {
+		high = lastDot
+	} else {
+		high = len(p.s)
+	}
+	id := types.LowHigh[string]{Low: i + 1, High: high}
+	sid := p.s[id.Low:id.High]
+
+	if len(p.identifiers) == 0 {
+		// The first is always the extension.
+		p.identifiers = append(p.identifiers, id)
+		found = true
+
+		// May also be the output format.
+		if mayHaveOutputFormat && pp.IsOutputFormat(sid, "") {
+			p.posIdentifierOutputFormat = 0
+		}
+	} else {
+
+		var langFound bool
+
+		if mayHaveLang {
+			var disabled bool
+			_, langFound = pp.LanguageIndex[sid]
+			if !langFound {
+				disabled = pp.IsLangDisabled != nil && pp.IsLangDisabled(sid)
+				if disabled {
+					p.disabled = true
+					langFound = true
+				}
+			}
+			found = langFound
+			if langFound {
+				p.identifiers = append(p.identifiers, id)
+				p.posIdentifierLanguage = len(p.identifiers) - 1
+
+			}
+		}
+
+		if !found && mayHaveOutputFormat {
+			// At this point we may already have resolved an output format,
+			// but we need to keep looking for a more specific one, e.g. amp before html.
+			// Use both name and extension to prevent
+			// false positives on the form css.html.
+			if pp.IsOutputFormat(sid, p.Ext()) {
+				found = true
+				p.identifiers = append(p.identifiers, id)
+				p.posIdentifierOutputFormat = len(p.identifiers) - 1
+			}
+		}
+
+		if !found && mayHaveKind {
+			if kinds.GetKindMain(sid) != "" {
+				found = true
+				p.identifiers = append(p.identifiers, id)
+				p.posIdentifierKind = len(p.identifiers) - 1
+			}
+		}
+
+		if !found && sid == identifierBaseof {
+			found = true
+			p.identifiers = append(p.identifiers, id)
+			p.posIdentifierBaseof = len(p.identifiers) - 1
+		}
+
+		if !found {
+			p.identifiers = append(p.identifiers, id)
+			p.identifiersUnknown = append(p.identifiersUnknown, len(p.identifiers)-1)
+		}
+
+	}
+}
+
+func (pp *PathParser) doParse(component, s string, p *Path) (*Path, error) {
 	if runtime.GOOS == "windows" {
 		s = path.Clean(filepath.ToSlash(s))
 		if s == "." {
@@ -140,46 +227,21 @@ func (pp *PathParser) doParse(component, s string, p *Path) (*Path, error) {

 	p.s = s
 	slashCount := 0
+	lastDot := 0

 	for i := len(s) - 1; i >= 0; i-- {
 		c := s[i]

 		switch c {
 		case '.':
-			if p.posContainerHigh == -1 {
-				var high int
-				if len(p.identifiers) > 0 {
-					high = p.identifiers[len(p.identifiers)-1].Low - 1
-				} else {
-					high = len(p.s)
-				}
-				id := types.LowHigh[string]{Low: i + 1, High: high}
-				if len(p.identifiers) == 0 {
-					p.identifiers = append(p.identifiers, id)
-				} else if len(p.identifiers) == 1 {
-					// Check for a valid language.
-					s := p.s[id.Low:id.High]
-
-					if hasLang {
-						var disabled bool
-						_, langFound := pp.LanguageIndex[s]
-						if !langFound {
-							disabled = pp.IsLangDisabled != nil && pp.IsLangDisabled(s)
-							if disabled {
-								p.disabled = true
-								langFound = true
-							}
-						}
-						if langFound {
-							p.posIdentifierLanguage = 1
-							p.identifiers = append(p.identifiers, id)
-						}
-					}
-				}
-			}
+			pp.parseIdentifier(component, s, p, i, lastDot)
+			lastDot = i
 		case '/':
 			slashCount++
 			if p.posContainerHigh == -1 {
+				if lastDot > 0 {
+					pp.parseIdentifier(component, s, p, i, lastDot)
+				}
 				p.posContainerHigh = i + 1
 			} else if p.posContainerLow == -1 {
 				p.posContainerLow = i + 1
@@ -194,22 +256,41 @@ func (pp *PathParser) doParse(component, s string, p *Path) (*Path, error) {
 		isContentComponent := p.component == files.ComponentFolderContent || p.component == files.ComponentFolderArchetypes
 		isContent := isContentComponent && pp.IsContentExt(p.Ext())
 		id := p.identifiers[len(p.identifiers)-1]
-		b := p.s[p.posContainerHigh : id.Low-1]
-		if isContent {
-			switch b {
-			case "index":
-				p.bundleType = PathTypeLeaf
-			case "_index":
-				p.bundleType = PathTypeBranch
-			default:
-				p.bundleType = PathTypeContentSingle
-			}

-			if slashCount == 2 && p.IsLeafBundle() {
-				p.posSectionHigh = 0
+		if id.High > p.posContainerHigh {
+			b := p.s[p.posContainerHigh:id.High]
+			if isContent {
+				switch b {
+				case "index":
+					p.pathType = TypeLeaf
+				case "_index":
+					p.pathType = TypeBranch
+				default:
+					p.pathType = TypeContentSingle
+				}
+
+				if slashCount == 2 && p.IsLeafBundle() {
+					p.posSectionHigh = 0
+				}
+			} else if b == files.NameContentData && files.IsContentDataExt(p.Ext()) {
+				p.pathType = TypeContentData
+			}
+		}
+
+	}
+
+	if component == files.ComponentFolderLayouts {
+		if p.posIdentifierBaseof != -1 {
+			p.pathType = TypeBaseof
+		} else {
+			pth := p.Path()
+			if strings.Contains(pth, "/_shortcodes/") {
+				p.pathType = TypeShortcode
+			} else if strings.Contains(pth, "/_markup/") {
+				p.pathType = TypeMarkup
+			} else if strings.HasPrefix(pth, "/_partials/") {
+				p.pathType = TypePartial
 			}
-		} else if b == files.NameContentData && files.IsContentDataExt(p.Ext()) {
-			p.bundleType = PathTypeContentData
 		}
 	}

@@ -218,35 +299,44 @@ func (pp *PathParser) doParse(component, s string, p *Path) (*Path, error) {

 func ModifyPathBundleTypeResource(p *Path) {
 	if p.IsContent() {
-		p.bundleType = PathTypeContentResource
+		p.pathType = TypeContentResource
 	} else {
-		p.bundleType = PathTypeFile
+		p.pathType = TypeFile
 	}
 }

-type PathType int
+//go:generate stringer -type Type
+
+type Type int

 const (
+
 	// A generic resource, e.g. a JSON file.
-	PathTypeFile PathType = iota
+	TypeFile Type = iota

 	// All below are content files.
 	// A resource of a content type with front matter.
-	PathTypeContentResource
+	TypeContentResource

 	// E.g. /blog/my-post.md
-	PathTypeContentSingle
+	TypeContentSingle

 	// All below are bundled content files.

 	// Leaf bundles, e.g. /blog/my-post/index.md
-	PathTypeLeaf
+	TypeLeaf

 	// Branch bundles, e.g. /blog/_index.md
-	PathTypeBranch
+	TypeBranch

 	// Content data file, _content.gotmpl.
-	PathTypeContentData
+	TypeContentData
+
+	// Layout types.
+	TypeMarkup
+	TypeShortcode
+	TypePartial
+	TypeBaseof
 )

 type Path struct {
@@ -257,13 +347,17 @@ type Path struct {
 	posContainerHigh int
 	posSectionHigh   int

-	component  string
-	bundleType PathType
+	component string
+	pathType  Type

 	identifiers []types.LowHigh[string]

-	posIdentifierLanguage int
-	disabled              bool
+	posIdentifierLanguage     int
+	posIdentifierOutputFormat int
+	posIdentifierKind         int
+	posIdentifierBaseof       int
+	identifiersUnknown        []int
+	disabled                  bool

 	trimLeadingSlash bool

@@ -293,9 +387,12 @@ func (p *Path) reset() {
 	p.posContainerHigh = -1
 	p.posSectionHigh = -1
 	p.component = ""
-	p.bundleType = 0
+	p.pathType = 0
 	p.identifiers = p.identifiers[:0]
 	p.posIdentifierLanguage = -1
+	p.posIdentifierOutputFormat = -1
+	p.posIdentifierKind = -1
+	p.posIdentifierBaseof = -1
 	p.disabled = false
 	p.trimLeadingSlash = false
 	p.unnormalized = nil
@@ -316,6 +413,9 @@ func (p *Path) norm(s string) string {

 // IdentifierBase satisfies identity.Identity.
 func (p *Path) IdentifierBase() string {
+	if p.Component() == files.ComponentFolderLayouts {
+		return p.Path()
+	}
 	return p.Base()
 }

@@ -332,6 +432,13 @@ func (p *Path) Container() string {
 	return p.norm(p.s[p.posContainerLow : p.posContainerHigh-1])
 }

+func (p *Path) String() string {
+	if p == nil {
+		return "<nil>"
+	}
+	return p.Path()
+}
+
 // ContainerDir returns the container directory for this path.
 // For content bundles this will be the parent directory.
 func (p *Path) ContainerDir() string {
@@ -352,13 +459,13 @@ func (p *Path) Section() string {
 // IsContent returns true if the path is a content file (e.g. mypost.md).
 // Note that this will also return true for content files in a bundle.
 func (p *Path) IsContent() bool {
-	return p.BundleType() >= PathTypeContentResource
+	return p.Type() >= TypeContentResource && p.Type() <= TypeContentData
 }

 // isContentPage returns true if the path is a content file (e.g. mypost.md),
 // but nof if inside a leaf bundle.
 func (p *Path) isContentPage() bool {
-	return p.BundleType() >= PathTypeContentSingle
+	return p.Type() >= TypeContentSingle && p.Type() <= TypeContentData
 }

 // Name returns the last element of path.
@@ -398,10 +505,26 @@ func (p *Path) BaseNameNoIdentifier() string {

 // NameNoIdentifier returns the last element of path without any identifier (e.g. no extension).
 func (p *Path) NameNoIdentifier() string {
+	lowHigh := p.nameLowHigh()
+	return p.s[lowHigh.Low:lowHigh.High]
+}
+
+func (p *Path) nameLowHigh() types.LowHigh[string] {
 	if len(p.identifiers) > 0 {
-		return p.s[p.posContainerHigh : p.identifiers[len(p.identifiers)-1].Low-1]
+		lastID := p.identifiers[len(p.identifiers)-1]
+		if p.posContainerHigh == lastID.Low {
+			// The last identifier is the name.
+			return lastID
+		}
+		return types.LowHigh[string]{
+			Low:  p.posContainerHigh,
+			High: p.identifiers[len(p.identifiers)-1].Low - 1,
+		}
+	}
+	return types.LowHigh[string]{
+		Low:  p.posContainerHigh,
+		High: len(p.s),
 	}
-	return p.s[p.posContainerHigh:]
 }

 // Dir returns all but the last element of path, typically the path's directory.
@@ -421,6 +544,11 @@ func (p *Path) Path() (d string) {
 	return p.norm(p.s)
 }

+// PathNoLeadingSlash returns the full path without the leading slash.
+func (p *Path) PathNoLeadingSlash() string {
+	return p.Path()[1:]
+}
+
 // Unnormalized returns the Path with the original case preserved.
 func (p *Path) Unnormalized() *Path {
 	return p.unnormalized
@@ -436,6 +564,28 @@ func (p *Path) PathNoIdentifier() string {
 	return p.base(false, false)
 }

+// PathBeforeLangAndOutputFormatAndExt returns the path up to the first identifier that is not a language or output format.
+func (p *Path) PathBeforeLangAndOutputFormatAndExt() string {
+	if len(p.identifiers) == 0 {
+		return p.norm(p.s)
+	}
+	i := p.identifierIndex(0)
+
+	if j := p.posIdentifierOutputFormat; i == -1 || (j != -1 && j < i) {
+		i = j
+	}
+	if j := p.posIdentifierLanguage; i == -1 || (j != -1 && j < i) {
+		i = j
+	}
+
+	if i == -1 {
+		return p.norm(p.s)
+	}
+
+	id := p.identifiers[i]
+	return p.norm(p.s[:id.Low-1])
+}
+
 // PathRel returns the path relative to the given owner.
 func (p *Path) PathRel(owner *Path) string {
 	ob := owner.Base()
@@ -462,6 +612,21 @@ func (p *Path) Base() string {
 	return p.base(!p.isContentPage(), p.IsBundle())
 }

+// Used in template lookups.
+// For pages with Type set, we treat that as the section.
+func (p *Path) BaseReTyped(typ string) (d string) {
+	base := p.Base()
+	if typ == "" || p.Section() == typ {
+		return base
+	}
+	d = "/" + typ
+	if p.posSectionHigh != -1 {
+		d += base[p.posSectionHigh:]
+	}
+	d = p.norm(d)
+	return
+}
+
 // BaseNoLeadingSlash returns the base path without the leading slash.
 func (p *Path) BaseNoLeadingSlash() string {
 	return p.Base()[1:]
@@ -477,11 +642,12 @@ func (p *Path) base(preserveExt, isBundle bool) string {
 		return p.norm(p.s)
 	}

-	id := p.identifiers[len(p.identifiers)-1]
-	high := id.Low - 1
+	var high int

 	if isBundle {
 		high = p.posContainerHigh - 1
+	} else {
+		high = p.nameLowHigh().High
 	}

 	if high == 0 {
@@ -493,7 +659,7 @@ func (p *Path) base(preserveExt, isBundle bool) string {
 	}

 	// For txt files etc. we want to preserve the extension.
-	id = p.identifiers[0]
+	id := p.identifiers[0]

 	return p.norm(p.s[:high] + p.s[id.Low-1:id.High])
 }
@@ -502,8 +668,16 @@ func (p *Path) Ext() string {
 	return p.identifierAsString(0)
 }

+func (p *Path) OutputFormat() string {
+	return p.identifierAsString(p.posIdentifierOutputFormat)
+}
+
+func (p *Path) Kind() string {
+	return p.identifierAsString(p.posIdentifierKind)
+}
+
 func (p *Path) Lang() string {
-	return p.identifierAsString(1)
+	return p.identifierAsString(p.posIdentifierLanguage)
 }

 func (p *Path) Identifier(i int) string {
@@ -522,28 +696,36 @@ func (p *Path) Identifiers() []string {
 	return ids
 }

-func (p *Path) BundleType() PathType {
-	return p.bundleType
+func (p *Path) IdentifiersUnknown() []string {
+	ids := make([]string, len(p.identifiersUnknown))
+	for i, id := range p.identifiersUnknown {
+		ids[i] = p.s[p.identifiers[id].Low:p.identifiers[id].High]
+	}
+	return ids
+}
+
+func (p *Path) Type() Type {
+	return p.pathType
 }

 func (p *Path) IsBundle() bool {
-	return p.bundleType >= PathTypeLeaf
+	return p.pathType >= TypeLeaf && p.pathType <= TypeContentData
 }

 func (p *Path) IsBranchBundle() bool {
-	return p.bundleType == PathTypeBranch
+	return p.pathType == TypeBranch
 }

 func (p *Path) IsLeafBundle() bool {
-	return p.bundleType == PathTypeLeaf
+	return p.pathType == TypeLeaf
 }

 func (p *Path) IsContentData() bool {
-	return p.bundleType == PathTypeContentData
+	return p.pathType == TypeContentData
 }

-func (p Path) ForBundleType(t PathType) *Path {
-	p.bundleType = t
+func (p Path) ForBundleType(t Type) *Path {
+	p.pathType = t
 	return &p
 }

@@ -18,6 +18,7 @@ import (
 	"testing"

 	"github.com/gohugoio/hugo/hugofs/files"
+	"github.com/gohugoio/hugo/resources/kinds"

 	qt "github.com/frankban/quicktest"
 )
@@ -26,10 +27,18 @@ var testParser = &PathParser{
 	LanguageIndex: map[string]int{
 		"no": 0,
 		"en": 1,
+		"fr": 2,
 	},
 	IsContentExt: func(ext string) bool {
 		return ext == "md"
 	},
+	IsOutputFormat: func(name, ext string) bool {
+		switch name {
+		case "html", "amp", "csv", "rss":
+			return true
+		}
+		return false
+	},
 }

 func TestParse(t *testing.T) {
@@ -105,17 +114,19 @@ func TestParse(t *testing.T) {
 			"Basic Markdown file",
 			"/a/b/c.md",
 			func(c *qt.C, p *Path) {
+				c.Assert(p.Ext(), qt.Equals, "md")
+				c.Assert(p.Type(), qt.Equals, TypeContentSingle)
 				c.Assert(p.IsContent(), qt.IsTrue)
 				c.Assert(p.IsLeafBundle(), qt.IsFalse)
 				c.Assert(p.Name(), qt.Equals, "c.md")
 				c.Assert(p.Base(), qt.Equals, "/a/b/c")
+				c.Assert(p.BaseReTyped("foo"), qt.Equals, "/foo/b/c")
 				c.Assert(p.Section(), qt.Equals, "a")
 				c.Assert(p.BaseNameNoIdentifier(), qt.Equals, "c")
 				c.Assert(p.Path(), qt.Equals, "/a/b/c.md")
 				c.Assert(p.Dir(), qt.Equals, "/a/b")
 				c.Assert(p.Container(), qt.Equals, "b")
 				c.Assert(p.ContainerDir(), qt.Equals, "/a/b")
-				c.Assert(p.Ext(), qt.Equals, "md")
 			},
 		},
 		{
@@ -130,7 +141,7 @@ func TestParse(t *testing.T) {

 				// Reclassify it as a content resource.
 				ModifyPathBundleTypeResource(p)
-				c.Assert(p.BundleType(), qt.Equals, PathTypeContentResource)
+				c.Assert(p.Type(), qt.Equals, TypeContentResource)
 				c.Assert(p.IsContent(), qt.IsTrue)
 				c.Assert(p.Name(), qt.Equals, "b.md")
 				c.Assert(p.Base(), qt.Equals, "/a/b.md")
@@ -160,14 +171,16 @@ func TestParse(t *testing.T) {
 			"/a/b.a.b.no.txt",
 			func(c *qt.C, p *Path) {
 				c.Assert(p.Name(), qt.Equals, "b.a.b.no.txt")
-				c.Assert(p.NameNoIdentifier(), qt.Equals, "b.a.b")
+				c.Assert(p.NameNoIdentifier(), qt.Equals, "b")
 				c.Assert(p.NameNoLang(), qt.Equals, "b.a.b.txt")
-				c.Assert(p.Identifiers(), qt.DeepEquals, []string{"txt", "no"})
-				c.Assert(p.Base(), qt.Equals, "/a/b.a.b.txt")
-				c.Assert(p.BaseNoLeadingSlash(), qt.Equals, "a/b.a.b.txt")
-				c.Assert(p.PathNoLang(), qt.Equals, "/a/b.a.b.txt")
+				c.Assert(p.Identifiers(), qt.DeepEquals, []string{"txt", "no", "b", "a", "b"})
+				c.Assert(p.IdentifiersUnknown(), qt.DeepEquals, []string{"b", "a", "b"})
+				c.Assert(p.Base(), qt.Equals, "/a/b.txt")
+				c.Assert(p.BaseNoLeadingSlash(), qt.Equals, "a/b.txt")
+				c.Assert(p.Path(), qt.Equals, "/a/b.a.b.no.txt")
+				c.Assert(p.PathNoLang(), qt.Equals, "/a/b.txt")
 				c.Assert(p.Ext(), qt.Equals, "txt")
-				c.Assert(p.PathNoIdentifier(), qt.Equals, "/a/b.a.b")
+				c.Assert(p.PathNoIdentifier(), qt.Equals, "/a/b")
 			},
 		},
 		{
@@ -175,6 +188,7 @@ func TestParse(t *testing.T) {
 			"/_index.md",
 			func(c *qt.C, p *Path) {
 				c.Assert(p.Base(), qt.Equals, "/")
+				c.Assert(p.BaseReTyped("foo"), qt.Equals, "/foo")
 				c.Assert(p.Path(), qt.Equals, "/_index.md")
 				c.Assert(p.Container(), qt.Equals, "")
 				c.Assert(p.ContainerDir(), qt.Equals, "/")
@@ -185,13 +199,14 @@ func TestParse(t *testing.T) {
 			"/a/index.md",
 			func(c *qt.C, p *Path) {
 				c.Assert(p.Base(), qt.Equals, "/a")
+				c.Assert(p.BaseReTyped("foo"), qt.Equals, "/foo/a")
 				c.Assert(p.BaseNameNoIdentifier(), qt.Equals, "a")
 				c.Assert(p.Container(), qt.Equals, "a")
 				c.Assert(p.Container(), qt.Equals, "a")
 				c.Assert(p.ContainerDir(), qt.Equals, "")
 				c.Assert(p.Dir(), qt.Equals, "/a")
 				c.Assert(p.Ext(), qt.Equals, "md")
-				c.Assert(p.Identifiers(), qt.DeepEquals, []string{"md"})
+				c.Assert(p.Identifiers(), qt.DeepEquals, []string{"md", "index"})
 				c.Assert(p.IsBranchBundle(), qt.IsFalse)
 				c.Assert(p.IsBundle(), qt.IsTrue)
 				c.Assert(p.IsLeafBundle(), qt.IsTrue)
@@ -208,11 +223,12 @@ func TestParse(t *testing.T) {
 			func(c *qt.C, p *Path) {
 				c.Assert(p.Base(), qt.Equals, "/a/b")
 				c.Assert(p.BaseNameNoIdentifier(), qt.Equals, "b")
+				c.Assert(p.BaseReTyped("foo"), qt.Equals, "/foo/b")
 				c.Assert(p.Container(), qt.Equals, "b")
 				c.Assert(p.ContainerDir(), qt.Equals, "/a")
 				c.Assert(p.Dir(), qt.Equals, "/a/b")
 				c.Assert(p.Ext(), qt.Equals, "md")
-				c.Assert(p.Identifiers(), qt.DeepEquals, []string{"md", "no"})
+				c.Assert(p.Identifiers(), qt.DeepEquals, []string{"md", "no", "index"})
 				c.Assert(p.IsBranchBundle(), qt.IsFalse)
 				c.Assert(p.IsBundle(), qt.IsTrue)
 				c.Assert(p.IsLeafBundle(), qt.IsTrue)
@@ -220,6 +236,7 @@ func TestParse(t *testing.T) {
 				c.Assert(p.NameNoExt(), qt.Equals, "index.no")
 				c.Assert(p.NameNoIdentifier(), qt.Equals, "index")
 				c.Assert(p.NameNoLang(), qt.Equals, "index.md")
+				c.Assert(p.Path(), qt.Equals, "/a/b/index.no.md")
 				c.Assert(p.PathNoLang(), qt.Equals, "/a/b/index.md")
 				c.Assert(p.Section(), qt.Equals, "a")
 			},
@@ -233,7 +250,7 @@ func TestParse(t *testing.T) {
 				c.Assert(p.Container(), qt.Equals, "b")
 				c.Assert(p.ContainerDir(), qt.Equals, "/a")
 				c.Assert(p.Ext(), qt.Equals, "md")
-				c.Assert(p.Identifiers(), qt.DeepEquals, []string{"md", "no"})
+				c.Assert(p.Identifiers(), qt.DeepEquals, []string{"md", "no", "_index"})
 				c.Assert(p.IsBranchBundle(), qt.IsTrue)
 				c.Assert(p.IsBundle(), qt.IsTrue)
 				c.Assert(p.IsLeafBundle(), qt.IsFalse)
@@ -272,7 +289,7 @@ func TestParse(t *testing.T) {
 			func(c *qt.C, p *Path) {
 				c.Assert(p.Base(), qt.Equals, "/a/b/index.txt")
 				c.Assert(p.Ext(), qt.Equals, "txt")
-				c.Assert(p.Identifiers(), qt.DeepEquals, []string{"txt", "no"})
+				c.Assert(p.Identifiers(), qt.DeepEquals, []string{"txt", "no", "index"})
 				c.Assert(p.IsLeafBundle(), qt.IsFalse)
 				c.Assert(p.PathNoIdentifier(), qt.Equals, "/a/b/index")
 			},
@@ -355,11 +372,140 @@ func TestParse(t *testing.T) {
 	}
 	for _, test := range tests {
 		c.Run(test.name, func(c *qt.C) {
+			if test.name != "Basic Markdown file" {
+				// return
+			}
 			test.assert(c, testParser.Parse(files.ComponentFolderContent, test.path))
 		})
 	}
 }

+func TestParseLayouts(t *testing.T) {
+	c := qt.New(t)
+
+	tests := []struct {
+		name   string
+		path   string
+		assert func(c *qt.C, p *Path)
+	}{
+		{
+			"Basic",
+			"/list.html",
+			func(c *qt.C, p *Path) {
+				c.Assert(p.Base(), qt.Equals, "/list.html")
+				c.Assert(p.OutputFormat(), qt.Equals, "html")
+			},
+		},
+		{
+			"Lang",
+			"/list.no.html",
+			func(c *qt.C, p *Path) {
+				c.Assert(p.Identifiers(), qt.DeepEquals, []string{"html", "no", "list"})
+				c.Assert(p.Base(), qt.Equals, "/list.html")
+				c.Assert(p.Lang(), qt.Equals, "no")
+			},
+		},
+		{
+			"Lang and output format",
+			"/list.no.amp.not.html",
+			func(c *qt.C, p *Path) {
+				c.Assert(p.Identifiers(), qt.DeepEquals, []string{"html", "not", "amp", "no", "list"})
+				c.Assert(p.OutputFormat(), qt.Equals, "amp")
+				c.Assert(p.Ext(), qt.Equals, "html")
+				c.Assert(p.Lang(), qt.Equals, "no")
+				c.Assert(p.Base(), qt.Equals, "/list.html")
+			},
+		},
+		{
+			"Term",
+			"/term.html",
+			func(c *qt.C, p *Path) {
+				c.Assert(p.Base(), qt.Equals, "/term.html")
+				c.Assert(p.Identifiers(), qt.DeepEquals, []string{"html", "term"})
+				c.Assert(p.PathNoIdentifier(), qt.Equals, "/term")
+				c.Assert(p.PathBeforeLangAndOutputFormatAndExt(), qt.Equals, "/term")
+				c.Assert(p.Lang(), qt.Equals, "")
+				c.Assert(p.Kind(), qt.Equals, "term")
+				c.Assert(p.OutputFormat(), qt.Equals, "html")
+			},
+		},
+		{
+			"Sub dir",
+			"/pages/home.html",
+			func(c *qt.C, p *Path) {
+				c.Assert(p.Identifiers(), qt.DeepEquals, []string{"html", "home"})
+				c.Assert(p.Lang(), qt.Equals, "")
+				c.Assert(p.Kind(), qt.Equals, "home")
+				c.Assert(p.OutputFormat(), qt.Equals, "html")
+				c.Assert(p.Dir(), qt.Equals, "/pages")
+			},
+		},
+		{
+			"Baseof",
+			"/pages/baseof.list.section.fr.amp.html",
+			func(c *qt.C, p *Path) {
+				c.Assert(p.Identifiers(), qt.DeepEquals, []string{"html", "amp", "fr", "section", "list", "baseof"})
+				c.Assert(p.IdentifiersUnknown(), qt.DeepEquals, []string{"list"})
+				c.Assert(p.Kind(), qt.Equals, kinds.KindSection)
+				c.Assert(p.Lang(), qt.Equals, "fr")
+				c.Assert(p.OutputFormat(), qt.Equals, "amp")
+				c.Assert(p.Dir(), qt.Equals, "/pages")
+				c.Assert(p.NameNoIdentifier(), qt.Equals, "baseof")
+				c.Assert(p.Type(), qt.Equals, TypeBaseof)
+				c.Assert(p.IdentifierBase(), qt.Equals, "/pages/baseof.list.section.fr.amp.html")
+			},
+		},
+		{
+			"Markup",
+			"/_markup/render-link.html",
+			func(c *qt.C, p *Path) {
+				c.Assert(p.Type(), qt.Equals, TypeMarkup)
+			},
+		},
+		{
+			"Markup nested",
+			"/foo/_markup/render-link.html",
+			func(c *qt.C, p *Path) {
+				c.Assert(p.Type(), qt.Equals, TypeMarkup)
+			},
+		},
+		{
+			"Shortcode",
+			"/_shortcodes/myshortcode.html",
+			func(c *qt.C, p *Path) {
+				c.Assert(p.Type(), qt.Equals, TypeShortcode)
+			},
+		},
+		{
+			"Shortcode nested",
+			"/foo/_shortcodes/myshortcode.html",
+			func(c *qt.C, p *Path) {
+				c.Assert(p.Type(), qt.Equals, TypeShortcode)
+			},
+		},
+		{
+			"Shortcode nested sub",
+			"/foo/_shortcodes/foo/myshortcode.html",
+			func(c *qt.C, p *Path) {
+				c.Assert(p.Type(), qt.Equals, TypeShortcode)
+			},
+		},
+		{
+			"Partials",
+			"/_partials/foo.bar",
+			func(c *qt.C, p *Path) {
+				c.Assert(p.Type(), qt.Equals, TypePartial)
+			},
+		},
+	}
+
+	for _, test := range tests {
+		c.Run(test.name, func(c *qt.C) {
+			test.assert(c, testParser.Parse(files.ComponentFolderLayouts, test.path))
+		})
+	}
+}
+
 func TestHasExt(t *testing.T) {
 	c := qt.New(t)

@@ -1,27 +0,0 @@
-// Code generated by "stringer -type=PathType"; DO NOT EDIT.
-
-package paths
-
-import "strconv"
-
-func _() {
-	// An "invalid array index" compiler error signifies that the constant values have changed.
-	// Re-run the stringer command to generate them again.
-	var x [1]struct{}
-	_ = x[PathTypeFile-0]
-	_ = x[PathTypeContentResource-1]
-	_ = x[PathTypeContentSingle-2]
-	_ = x[PathTypeLeaf-3]
-	_ = x[PathTypeBranch-4]
-}
-
-const _PathType_name = "PathTypeFilePathTypeContentResourcePathTypeContentSinglePathTypeLeafPathTypeBranch"
-
-var _PathType_index = [...]uint8{0, 12, 35, 56, 68, 82}
-
-func (i PathType) String() string {
-	if i < 0 || i >= PathType(len(_PathType_index)-1) {
-		return "PathType(" + strconv.FormatInt(int64(i), 10) + ")"
-	}
-	return _PathType_name[_PathType_index[i]:_PathType_index[i+1]]
-}
@@ -0,0 +1,32 @@
+// Code generated by "stringer -type Type"; DO NOT EDIT.
+
+package paths
+
+import "strconv"
+
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[TypeFile-0]
+	_ = x[TypeContentResource-1]
+	_ = x[TypeContentSingle-2]
+	_ = x[TypeLeaf-3]
+	_ = x[TypeBranch-4]
+	_ = x[TypeContentData-5]
+	_ = x[TypeMarkup-6]
+	_ = x[TypeShortcode-7]
+	_ = x[TypePartial-8]
+	_ = x[TypeBaseof-9]
+}
+
+const _Type_name = "TypeFileTypeContentResourceTypeContentSingleTypeLeafTypeBranchTypeContentDataTypeMarkupTypeShortcodeTypePartialTypeBaseof"
+
+var _Type_index = [...]uint8{0, 8, 27, 44, 52, 62, 77, 87, 100, 111, 121}
+
+func (i Type) String() string {
+	if i < 0 || i >= Type(len(_Type_index)-1) {
+		return "Type(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _Type_name[_Type_index[i]:_Type_index[i+1]]
+}
@@ -51,7 +51,7 @@ func Run[T any](ctx context.Context, cfg Config[T]) Group[T] {
 	// Buffered for performance.
 	ch := make(chan T, cfg.NumWorkers)

-	for i := 0; i < cfg.NumWorkers; i++ {
+	for range cfg.NumWorkers {
 		g.Go(func() error {
 			for {
 				select {
@@ -103,10 +103,7 @@ func (r *RunEvery) Add(name string, f Func) {
 		f.IntervalHigh = 20 * time.Second
 	}

-	start := f.IntervalHigh / 3
-	if start < f.IntervalLow {
-		start = f.IntervalLow
-	}
+	start := max(f.IntervalHigh/3, f.IntervalLow)
 	f.interval = start
 	f.last = time.Now()

@@ -69,7 +69,7 @@ func ToStringSlicePreserveStringE(v any) ([]string, error) {
 	switch vv.Kind() {
 	case reflect.Slice, reflect.Array:
 		result = make([]string, vv.Len())
-		for i := 0; i < vv.Len(); i++ {
+		for i := range vv.Len() {
 			s, err := cast.ToStringE(vv.Index(i).Interface())
 			if err != nil {
 				return nil, err
@@ -15,6 +15,7 @@
 package types

 import (
+	"slices"
 	"sync"
 )

@@ -45,7 +46,7 @@ func (q *EvictingQueue[T]) Add(v T) *EvictingQueue[T] {
 	if len(q.set) == q.size {
 		// Full
 		delete(q.set, q.vals[0])
-		q.vals = append(q.vals[:0], q.vals[1:]...)
+		q.vals = slices.Delete(q.vals, 0, 1)
 	}
 	q.set[v] = true
 	q.vals = append(q.vals, v)
@@ -55,7 +55,7 @@ func TestEvictingStringQueueConcurrent(t *testing.T) {

 	queue := NewEvictingQueue[string](3)

-	for j := 0; j < 100; j++ {
+	for range 100 {
 		wg.Add(1)
 		go func() {
 			defer wg.Done()
@@ -28,6 +28,16 @@ type RLocker interface {
 	RUnlock()
 }

+type Locker interface {
+	Lock()
+	Unlock()
+}
+
+type RWLocker interface {
+	RLocker
+	Locker
+}
+
 // KeyValue is a interface{} tuple.
 type KeyValue struct {
 	Key   any
@@ -59,7 +69,7 @@ func (k KeyValues) String() string {
 // KeyValues struct.
 func NewKeyValuesStrings(key string, values ...string) KeyValues {
 	iv := make([]any, len(values))
-	for i := 0; i < len(values); i++ {
+	for i := range values {
 		iv[i] = values[i]
 	}
 	return KeyValues{Key: key, Values: iv}
@@ -82,7 +82,7 @@ func init() {
 	}
 	configLanguageKeys = make(map[string]bool)
 	addKeys := func(v reflect.Value) {
-		for i := 0; i < v.NumField(); i++ {
+		for i := range v.NumField() {
 			name := strings.ToLower(v.Type().Field(i).Name)
 			if skip[name] {
 				continue
@@ -128,6 +128,9 @@ type Config struct {
 	// <docsmeta>{"identifiers": ["markup"] }</docsmeta>
 	Markup markup_config.Config `mapstructure:"-"`

+	// ContentTypes are the media types that's considered content in Hugo.
+	ContentTypes *config.ConfigNamespace[map[string]media.ContentTypeConfig, media.ContentTypes] `mapstructure:"-"`
+
 	// The mediatypes configuration section maps the MIME type (a string) to a configuration object for that type.
 	// <docsmeta>{"identifiers": ["mediatypes"], "refs": ["types:media:type"] }</docsmeta>
 	MediaTypes *config.ConfigNamespace[map[string]media.MediaTypeConfig, media.Types] `mapstructure:"-"`
@@ -393,37 +396,46 @@ func (c *Config) CompileConfig(logger loggers.Logger) error {

 	// Legacy paginate values.
 	if c.Paginate != 0 {
-		hugo.Deprecate("site config key paginate", "Use pagination.pagerSize instead.", "v0.128.0")
+		hugo.DeprecateWithLogger("site config key paginate", "Use pagination.pagerSize instead.", "v0.128.0", logger.Logger())
 		c.Pagination.PagerSize = c.Paginate
 	}

 	if c.PaginatePath != "" {
-		hugo.Deprecate("site config key paginatePath", "Use pagination.path instead.", "v0.128.0")
+		hugo.DeprecateWithLogger("site config key paginatePath", "Use pagination.path instead.", "v0.128.0", logger.Logger())
 		c.Pagination.Path = c.PaginatePath
 	}

 	// Legacy privacy values.
 	if c.Privacy.Twitter.Disable {
-		hugo.Deprecate("site config key privacy.twitter.disable", "Use privacy.x.disable instead.", "v0.141.0")
+		hugo.DeprecateWithLogger("site config key privacy.twitter.disable", "Use privacy.x.disable instead.", "v0.141.0", logger.Logger())
 		c.Privacy.X.Disable = c.Privacy.Twitter.Disable
 	}

 	if c.Privacy.Twitter.EnableDNT {
-		hugo.Deprecate("site config key privacy.twitter.enableDNT", "Use privacy.x.enableDNT instead.", "v0.141.0")
+		hugo.DeprecateWithLogger("site config key privacy.twitter.enableDNT", "Use privacy.x.enableDNT instead.", "v0.141.0", logger.Logger())
 		c.Privacy.X.EnableDNT = c.Privacy.Twitter.EnableDNT
 	}

 	if c.Privacy.Twitter.Simple {
-		hugo.Deprecate("site config key privacy.twitter.simple", "Use privacy.x.simple instead.", "v0.141.0")
+		hugo.DeprecateWithLogger("site config key privacy.twitter.simple", "Use privacy.x.simple instead.", "v0.141.0", logger.Logger())
 		c.Privacy.X.Simple = c.Privacy.Twitter.Simple
 	}

 	// Legacy services values.
 	if c.Services.Twitter.DisableInlineCSS {
-		hugo.Deprecate("site config key services.twitter.disableInlineCSS", "Use services.x.disableInlineCSS instead.", "v0.141.0")
+		hugo.DeprecateWithLogger("site config key services.twitter.disableInlineCSS", "Use services.x.disableInlineCSS instead.", "v0.141.0", logger.Logger())
 		c.Services.X.DisableInlineCSS = c.Services.Twitter.DisableInlineCSS
 	}

+	// Legacy permalink tokens
+	vs := fmt.Sprintf("%v", c.Permalinks)
+	if strings.Contains(vs, ":filename") {
+		hugo.DeprecateWithLogger("the \":filename\" permalink token", "Use \":contentbasename\" instead.", "0.144.0", logger.Logger())
+	}
+	if strings.Contains(vs, ":slugorfilename") {
+		hugo.DeprecateWithLogger("the \":slugorfilename\" permalink token", "Use \":slugorcontentbasename\" instead.", "0.144.0", logger.Logger())
+	}
+
 	c.C = &ConfigCompiled{
 		Timeout:             timeout,
 		BaseURL:             baseURL,
@@ -433,7 +445,6 @@ func (c *Config) CompileConfig(logger loggers.Logger) error {
 		IgnoredLogs:         ignoredLogIDs,
 		KindOutputFormats:   kindOutputFormats,
 		DefaultOutputFormat: defaultOutputFormat,
-		ContentTypes:        media.DefaultContentTypes.FromTypes(c.MediaTypes.Config),
 		CreateTitle:         helpers.GetTitleFunc(c.TitleCaseStyle),
 		IsUglyURLSection:    isUglyURL,
 		IgnoreFile:          ignoreFile,
@@ -471,7 +482,6 @@ type ConfigCompiled struct {
 	ServerInterface     string
 	KindOutputFormats   map[string]output.Formats
 	DefaultOutputFormat output.Format
-	ContentTypes        media.ContentTypes
 	DisabledKinds       map[string]bool
 	DisabledLanguages   map[string]bool
 	IgnoredLogs         map[string]bool
@@ -839,7 +849,24 @@ func (c *Configs) Init() error {
 	c.Languages = languages
 	c.LanguagesDefaultFirst = languagesDefaultFirst

-	c.ContentPathParser = &paths.PathParser{LanguageIndex: languagesDefaultFirst.AsIndexSet(), IsLangDisabled: c.Base.IsLangDisabled, IsContentExt: c.Base.C.ContentTypes.IsContentSuffix}
+	c.ContentPathParser = &paths.PathParser{
+		LanguageIndex:  languagesDefaultFirst.AsIndexSet(),
+		IsLangDisabled: c.Base.IsLangDisabled,
+		IsContentExt:   c.Base.ContentTypes.Config.IsContentSuffix,
+		IsOutputFormat: func(name, ext string) bool {
+			if name == "" {
+				return false
+			}
+
+			if of, ok := c.Base.OutputFormats.Config.GetByName(name); ok {
+				if ext != "" && !of.MediaType.HasSuffix(ext) {
+					return false
+				}
+				return true
+			}
+			return false
+		},
+	}

 	c.configLangs = make([]config.AllProvider, len(c.Languages))
 	for i, l := range c.LanguagesDefaultFirst {
@@ -7,6 +7,7 @@ import (
 	qt "github.com/frankban/quicktest"
 	"github.com/gohugoio/hugo/config/allconfig"
 	"github.com/gohugoio/hugo/hugolib"
+	"github.com/gohugoio/hugo/media"
 )

 func TestDirsMount(t *testing.T) {
@@ -97,7 +98,7 @@ suffixes = ["html", "xhtml"]
 	b := hugolib.Test(t, files)

 	conf := b.H.Configs.Base
-	contentTypes := conf.C.ContentTypes
+	contentTypes := conf.ContentTypes.Config

 	b.Assert(contentTypes.HTML.Suffixes(), qt.DeepEquals, []string{"html", "xhtml"})
 	b.Assert(contentTypes.Markdown.Suffixes(), qt.DeepEquals, []string{"md", "mdown", "markdown"})
@@ -215,3 +216,21 @@ weight = 3
 	b := hugolib.Test(t, files)
 	b.Assert(b.H.Configs.LanguageConfigSlice[0].Title, qt.Equals, `TITLE_DE`)
 }
+
+func TestContentTypesDefault(t *testing.T) {
+	files := `
+-- hugo.toml --
+baseURL = "https://example.com"
+
+
+`
+
+	b := hugolib.Test(t, files)
+
+	ct := b.H.Configs.Base.ContentTypes
+	c := ct.Config
+	s := ct.SourceStructure.(map[string]media.ContentTypeConfig)
+
+	b.Assert(c.IsContentFile("foo.md"), qt.Equals, true)
+	b.Assert(len(s), qt.Equals, 6)
+}
@@ -163,6 +163,15 @@ var allDecoderSetups = map[string]decodeWeight{
 			return err
 		},
 	},
+	"contenttypes": {
+		key:    "contenttypes",
+		weight: 100, // This needs to be decoded after media types.
+		decode: func(d decodeWeight, p decodeConfig) error {
+			var err error
+			p.c.ContentTypes, err = media.DecodeContentTypes(p.p.GetStringMap(d.key), p.c.MediaTypes.Config)
+			return err
+		},
+	},
 	"mediatypes": {
 		key: "mediatypes",
 		decode: func(d decodeWeight, p decodeConfig) error {
@@ -145,7 +145,7 @@ func (c ConfigLanguage) NewIdentityManager(name string, opts ...identity.Manager
 }

 func (c ConfigLanguage) ContentTypes() config.ContentTypesProvider {
-	return c.config.C.ContentTypes
+	return c.config.ContentTypes.Config
 }

 // GetConfigSection is mostly used in tests. The switch statement isn't complete, but what's in use.
@@ -91,7 +91,7 @@ func LoadConfig(d ConfigSourceDescriptor) (*Configs, error) {
 		return nil, fmt.Errorf("failed to init config: %w", err)
 	}

-	loggers.InitGlobalLogger(d.Logger.Level(), configs.Base.PanicOnWarning)
+	loggers.SetGlobalLogger(d.Logger)

 	return configs, nil
 }
@@ -305,7 +305,7 @@ func (l configLoader) applyOsEnvOverrides(environ []string) error {
 				_, ok := allDecoderSetups[key]
 				if ok {
 					// A map.
-					if v, err := metadecoders.Default.UnmarshalStringTo(env.Value, map[string]interface{}{}); err == nil {
+					if v, err := metadecoders.Default.UnmarshalStringTo(env.Value, map[string]any{}); err == nil {
 						val = v
 					}
 				}
@@ -15,6 +15,7 @@ package config

 import (
 	"fmt"
+	"net/http"
 	"regexp"
 	"sort"
 	"strings"
@@ -27,6 +28,7 @@ import (
 	"github.com/gohugoio/hugo/common/herrors"
 	"github.com/mitchellh/mapstructure"
 	"github.com/spf13/cast"
+	"slices"
 )

 type BaseConfig struct {
@@ -127,7 +129,7 @@ func (w BuildStats) Enabled() bool {
 }

 func (b BuildConfig) clone() BuildConfig {
-	b.CacheBusters = append([]CacheBuster{}, b.CacheBusters...)
+	b.CacheBusters = slices.Clone(b.CacheBusters)
 	return b
 }

@@ -226,7 +228,22 @@ type Server struct {
 	Redirects []Redirect

 	compiledHeaders   []glob.Glob
-	compiledRedirects []glob.Glob
+	compiledRedirects []redirect
+}
+
+type redirect struct {
+	from    glob.Glob
+	fromRe  *regexp.Regexp
+	headers map[string]glob.Glob
+}
+
+func (r redirect) matchHeader(header http.Header) bool {
+	for k, v := range r.headers {
+		if !v.Match(header.Get(k)) {
+			return false
+		}
+	}
+	return true
 }

 func (s *Server) CompileConfig(logger loggers.Logger) error {
@@ -234,10 +251,41 @@ func (s *Server) CompileConfig(logger loggers.Logger) error {
 		return nil
 	}
 	for _, h := range s.Headers {
-		s.compiledHeaders = append(s.compiledHeaders, glob.MustCompile(h.For))
+		g, err := glob.Compile(h.For)
+		if err != nil {
+			return fmt.Errorf("failed to compile Headers glob %q: %w", h.For, err)
+		}
+		s.compiledHeaders = append(s.compiledHeaders, g)
 	}
 	for _, r := range s.Redirects {
-		s.compiledRedirects = append(s.compiledRedirects, glob.MustCompile(r.From))
+		if r.From == "" && r.FromRe == "" {
+			return fmt.Errorf("redirects must have either From or FromRe set")
+		}
+		rd := redirect{
+			headers: make(map[string]glob.Glob),
+		}
+		if r.From != "" {
+			g, err := glob.Compile(r.From)
+			if err != nil {
+				return fmt.Errorf("failed to compile Redirect glob %q: %w", r.From, err)
+			}
+			rd.from = g
+		}
+		if r.FromRe != "" {
+			re, err := regexp.Compile(r.FromRe)
+			if err != nil {
+				return fmt.Errorf("failed to compile Redirect regexp %q: %w", r.FromRe, err)
+			}
+			rd.fromRe = re
+		}
+		for k, v := range r.FromHeaders {
+			g, err := glob.Compile(v)
+			if err != nil {
+				return fmt.Errorf("failed to compile Redirect header glob %q: %w", v, err)
+			}
+			rd.headers[k] = g
+		}
+		s.compiledRedirects = append(s.compiledRedirects, rd)
 	}

 	return nil
@@ -266,22 +314,42 @@ func (s *Server) MatchHeaders(pattern string) []types.KeyValueStr {
 	return matches
 }

-func (s *Server) MatchRedirect(pattern string) Redirect {
+func (s *Server) MatchRedirect(pattern string, header http.Header) Redirect {
 	if s.compiledRedirects == nil {
 		return Redirect{}
 	}

 	pattern = strings.TrimSuffix(pattern, "index.html")

-	for i, g := range s.compiledRedirects {
+	for i, r := range s.compiledRedirects {
 		redir := s.Redirects[i]

-		// No redirect to self.
-		if redir.To == pattern {
-			return Redirect{}
+		var found bool
+
+		if r.from != nil {
+			if r.from.Match(pattern) {
+				found = header == nil || r.matchHeader(header)
+				// We need to do regexp group replacements if needed.
+			}
 		}

-		if g.Match(pattern) {
+		if r.fromRe != nil {
+			m := r.fromRe.FindStringSubmatch(pattern)
+			if m != nil {
+				if !found {
+					found = header == nil || r.matchHeader(header)
+				}
+
+				if found {
+					// Replace $1, $2 etc. in To.
+					for i, g := range m[1:] {
+						redir.To = strings.ReplaceAll(redir.To, fmt.Sprintf("$%d", i+1), g)
+					}
+				}
+			}
+		}
+
+		if found {
 			return redir
 		}
 	}
@@ -295,8 +363,22 @@ type Headers struct {
 }

 type Redirect struct {
+	// From is the Glob pattern to match.
+	// One of From or FromRe must be set.
 	From string
-	To   string
+
+	// FromRe is the regexp to match.
+	// This regexp can contain group matches (e.g. $1) that can be used in the To field.
+	// One of From or FromRe must be set.
+	FromRe string
+
+	// To is the target URL.
+	To string
+
+	// Headers to match for the redirect.
+	// This maps the HTTP header name to a Glob pattern with values to match.
+	// If the map is empty, the redirect will always be triggered.
+	FromHeaders map[string]string

 	// HTTP status code to use for the redirect.
 	// A status code of 200 will trigger a URL rewrite.
@@ -369,7 +451,7 @@ func (c *CacheBuster) CompileConfig(logger loggers.Logger) error {
 }

 func (r Redirect) IsZero() bool {
-	return r.From == ""
+	return r.From == "" && r.FromRe == ""
 }

 const (
@@ -383,17 +465,7 @@ func DecodeServer(cfg Provider) (Server, error) {
 	_ = mapstructure.WeakDecode(cfg.GetStringMap("server"), s)

 	for i, redir := range s.Redirects {
-		// Get it in line with the Hugo server for OK responses.
-		// We currently treat the 404 as a special case, they are always "ugly", so keep them as is.
-		if redir.Status != 404 {
-			redir.To = strings.TrimSuffix(redir.To, "index.html")
-			if !strings.HasPrefix(redir.To, "https") && !strings.HasSuffix(redir.To, "/") {
-				// There are some tricky infinite loop situations when dealing
-				// when the target does not have a trailing slash.
-				// This can certainly be handled better, but not time for that now.
-				return Server{}, fmt.Errorf("unsupported redirect to value %q in server config; currently this must be either a remote destination or a local folder, e.g. \"/blog/\" or \"/blog/index.html\"", redir.To)
-			}
-		}
+		redir.To = strings.TrimSuffix(redir.To, "index.html")
 		s.Redirects[i] = redir
 	}

@@ -401,7 +473,7 @@ func DecodeServer(cfg Provider) (Server, error) {
 		// Set up a default redirect for 404s.
 		s.Redirects = []Redirect{
 			{
-				From:   "**",
+				From:   "/**",
 				To:     "/404.html",
 				Status: 404,
 			},
@@ -71,7 +71,28 @@ X-Content-Type-Options = "nosniff"

 [[server.redirects]]
 from = "/foo/**"
-to = "/foo/index.html"
+to = "/baz/index.html"
+status = 200
+
+[[server.redirects]]
+from = "/loop/**"
+to = "/loop/foo/"
+status = 200
+
+[[server.redirects]]
+from = "/b/**"
+fromRe = "/b/(.*)/"
+to = "/baz/$1/"
+status = 200
+
+[[server.redirects]]
+fromRe = "/c/(.*)/"
+to = "/boo/$1/"
+status = 200
+
+[[server.redirects]]
+fromRe = "/d/(.*)/"
+to = "/boo/$1/"
 status = 200

 [[server.redirects]]
@@ -79,11 +100,6 @@ from = "/google/**"
 to = "https://google.com/"
 status = 301

-[[server.redirects]]
-from = "/**"
-to = "/default/index.html"
-status = 301
-


 `, "toml")
@@ -100,45 +116,35 @@ status = 301
 		{Key: "X-XSS-Protection", Value: "1; mode=block"},
 	})

-	c.Assert(s.MatchRedirect("/foo/bar/baz"), qt.DeepEquals, Redirect{
+	c.Assert(s.MatchRedirect("/foo/bar/baz", nil), qt.DeepEquals, Redirect{
 		From:   "/foo/**",
-		To:     "/foo/",
+		To:     "/baz/",
 		Status: 200,
 	})

-	c.Assert(s.MatchRedirect("/someother"), qt.DeepEquals, Redirect{
-		From:   "/**",
-		To:     "/default/",
-		Status: 301,
+	c.Assert(s.MatchRedirect("/foo/bar/", nil), qt.DeepEquals, Redirect{
+		From:   "/foo/**",
+		To:     "/baz/",
+		Status: 200,
 	})

-	c.Assert(s.MatchRedirect("/google/foo"), qt.DeepEquals, Redirect{
+	c.Assert(s.MatchRedirect("/b/c/", nil), qt.DeepEquals, Redirect{
+		From:   "/b/**",
+		FromRe: "/b/(.*)/",
+		To:     "/baz/c/",
+		Status: 200,
+	})
+
+	c.Assert(s.MatchRedirect("/c/d/", nil).To, qt.Equals, "/boo/d/")
+	c.Assert(s.MatchRedirect("/c/d/e/", nil).To, qt.Equals, "/boo/d/e/")
+
+	c.Assert(s.MatchRedirect("/someother", nil), qt.DeepEquals, Redirect{})
+
+	c.Assert(s.MatchRedirect("/google/foo", nil), qt.DeepEquals, Redirect{
 		From:   "/google/**",
 		To:     "https://google.com/",
 		Status: 301,
 	})
-
-	// No redirect loop, please.
-	c.Assert(s.MatchRedirect("/default/index.html"), qt.DeepEquals, Redirect{})
-	c.Assert(s.MatchRedirect("/default/"), qt.DeepEquals, Redirect{})
-
-	for _, errorCase := range []string{
-		`[[server.redirects]]
-from = "/**"
-to = "/file"
-status = 301`,
-		`[[server.redirects]]
-from = "/**"
-to = "/foo/file.html"
-status = 301`,
-	} {
-
-		cfg, err := FromConfigString(errorCase, "toml")
-		c.Assert(err, qt.IsNil)
-		_, err = DecodeServer(cfg)
-		c.Assert(err, qt.Not(qt.IsNil))
-
-	}
 }

 func TestBuildConfigCacheBusters(t *testing.T) {
@@ -160,7 +166,7 @@ func TestBuildConfigCacheBusters(t *testing.T) {
 func TestBuildConfigCacheBusterstTailwindSetup(t *testing.T) {
 	c := qt.New(t)
 	cfg := New()
-	cfg.Set("build", map[string]interface{}{
+	cfg.Set("build", map[string]any{
 		"cacheBusters": []map[string]string{
 			{
 				"source": "assets/watching/hugo_stats\\.json",
@@ -15,7 +15,6 @@ package config

 import (
 	"fmt"
-	"sort"
 	"strings"
 	"sync"

@@ -26,42 +25,6 @@ import (
 	"github.com/gohugoio/hugo/common/maps"
 )

-var (
-
-	// ConfigRootKeysSet contains all of the config map root keys.
-	ConfigRootKeysSet = map[string]bool{
-		"build":         true,
-		"caches":        true,
-		"cascade":       true,
-		"frontmatter":   true,
-		"languages":     true,
-		"imaging":       true,
-		"markup":        true,
-		"mediatypes":    true,
-		"menus":         true,
-		"minify":        true,
-		"module":        true,
-		"outputformats": true,
-		"params":        true,
-		"permalinks":    true,
-		"related":       true,
-		"sitemap":       true,
-		"privacy":       true,
-		"security":      true,
-		"taxonomies":    true,
-	}
-
-	// ConfigRootKeys is a sorted version of ConfigRootKeysSet.
-	ConfigRootKeys []string
-)
-
-func init() {
-	for k := range ConfigRootKeysSet {
-		ConfigRootKeys = append(ConfigRootKeys, k)
-	}
-	sort.Strings(ConfigRootKeys)
-}
-
 // New creates a Provider backed by an empty maps.Params.
 func New() Provider {
 	return &defaultConfigProvider{
@@ -382,7 +345,7 @@ func (c *defaultConfigProvider) getNestedKeyAndMap(key string, create bool) (str
 		c.keyCache.Store(key, parts)
 	}
 	current := c.root
-	for i := 0; i < len(parts)-1; i++ {
+	for i := range len(parts) - 1 {
 		next, found := current[parts[i]]
 		if !found {
 			if create {
@@ -332,7 +332,7 @@ func TestDefaultConfigProvider(t *testing.T) {
 			return nil
 		}

-		for i := 0; i < 20; i++ {
+		for i := range 20 {
 			i := i
 			r.Run(func() error {
 				const v = 42
@@ -29,7 +29,7 @@ func TestNamespace(t *testing.T) {
 	// ns, err := config.DecodeNamespace[map[string]DocsMediaTypeConfig](in, defaultMediaTypesConfig, buildConfig)

 	ns, err := DecodeNamespace[[]*tstNsExt](
-		map[string]interface{}{"foo": "bar"},
+		map[string]any{"foo": "bar"},
 		func(v any) (*tstNsExt, any, error) {
 			t := &tstNsExt{}
 			m, err := maps.ToStringMapE(v)
@@ -42,7 +42,7 @@ func TestNamespace(t *testing.T) {

 	c.Assert(err, qt.IsNil)
 	c.Assert(ns, qt.Not(qt.IsNil))
-	c.Assert(ns.SourceStructure, qt.DeepEquals, map[string]interface{}{"foo": "bar"})
+	c.Assert(ns.SourceStructure, qt.DeepEquals, map[string]any{"foo": "bar"})
 	c.Assert(ns.SourceHash, qt.Equals, "1420f6c7782f7459")
 	c.Assert(ns.Config, qt.DeepEquals, &tstNsExt{Foo: "bar"})
 	c.Assert(ns.Signature(), qt.DeepEquals, []*tstNsExt(nil))
@@ -36,10 +36,6 @@ respectDoNotTrack = true
 [privacy.instagram]
 disable = true
 simple = true
-[privacy.twitter]
-disable = true
-enableDNT = true
-simple = true
 [privacy.x]
 disable = true
 enableDNT = true
@@ -63,8 +59,8 @@ simple = true
 	got := []bool{
 		pc.Disqus.Disable, pc.GoogleAnalytics.Disable,
 		pc.GoogleAnalytics.RespectDoNotTrack, pc.Instagram.Disable,
-		pc.Instagram.Simple, pc.Twitter.Disable, pc.Twitter.EnableDNT,
-		pc.Twitter.Simple, pc.Vimeo.Disable, pc.Vimeo.EnableDNT, pc.Vimeo.Simple,
+		pc.Instagram.Simple,
+		pc.Vimeo.Disable, pc.Vimeo.EnableDNT, pc.Vimeo.Simple,
 		pc.YouTube.PrivacyEnhanced, pc.YouTube.Disable, pc.X.Disable, pc.X.EnableDNT,
 		pc.X.Simple,
 	}
@@ -73,7 +73,7 @@ func NewWhitelist(patterns ...string) (Whitelist, error) {

 	var patternsr []*regexp.Regexp

-	for i := 0; i < len(patterns); i++ {
+	for i := range patterns {
 		p := strings.TrimSpace(patterns[i])
 		if p == "" {
 			continue
@@ -291,7 +291,7 @@ func (b *contentBuilder) applyArcheType(contentFilename string, archetypeFi hugo
 func (b *contentBuilder) mapArcheTypeDir() error {
 	var m archetypeMap

-	seen := map[hstrings.Tuple]bool{}
+	seen := map[hstrings.Strings2]bool{}

 	walkFn := func(path string, fim hugofs.FileMetaInfo) error {
 		if fim.IsDir() {
@@ -301,7 +301,7 @@ func (b *contentBuilder) mapArcheTypeDir() error {
 		pi := fim.Meta().PathInfo

 		if pi.IsContent() {
-			pathLang := hstrings.Tuple{First: pi.PathNoIdentifier(), Second: fim.Meta().Lang}
+			pathLang := hstrings.Strings2{pi.PathBeforeLangAndOutputFormatAndExt(), fim.Meta().Lang}
 			if seen[pathLang] {
 				// Duplicate content file, e.g. page.md and page.html.
 				// In the regular build, we will filter out the duplicates, but
@@ -129,7 +129,7 @@ site RegularPages: {{ len site.RegularPages  }}

 `

-	c.Assert(afero.WriteFile(mm, filepath.Join(archetypeDir, "index.md"), []byte(fmt.Sprintf(contentFile, "index.md")), 0o755), qt.IsNil)
+	c.Assert(afero.WriteFile(mm, filepath.Join(archetypeDir, "index.md"), fmt.Appendf(nil, contentFile, "index.md"), 0o755), qt.IsNil)
 	c.Assert(afero.WriteFile(mm, filepath.Join(defaultArchetypeDir, "index.md"), []byte("default archetype index.md"), 0o755), qt.IsNil)

 	c.Assert(initFs(mm), qt.IsNil)
@@ -34,10 +34,60 @@ var siteFs embed.FS
 var themeFs embed.FS

 // CreateTheme creates a theme skeleton.
-func CreateTheme(createpath string, sourceFs afero.Fs) error {
+func CreateTheme(createpath string, sourceFs afero.Fs, format string) error {
 	if exists, _ := helpers.Exists(createpath, sourceFs); exists {
 		return errors.New(createpath + " already exists")
 	}
+
+	format = strings.ToLower(format)
+
+	siteConfig := map[string]any{
+		"baseURL":      "https://example.org/",
+		"languageCode": "en-US",
+		"title":        "My New Hugo Site",
+		"menus": map[string]any{
+			"main": []any{
+				map[string]any{
+					"name":    "Home",
+					"pageRef": "/",
+					"weight":  10,
+				},
+				map[string]any{
+					"name":    "Posts",
+					"pageRef": "/posts",
+					"weight":  20,
+				},
+				map[string]any{
+					"name":    "Tags",
+					"pageRef": "/tags",
+					"weight":  30,
+				},
+			},
+		},
+		"module": map[string]any{
+			"hugoVersion": map[string]any{
+				"extended": false,
+				"min":      "0.146.0",
+			},
+		},
+	}
+
+	err := createSiteConfig(sourceFs, createpath, siteConfig, format)
+	if err != nil {
+		return err
+	}
+
+	defaultArchetype := map[string]any{
+		"title": "{{ replace .File.ContentBaseName \"-\" \" \" | title }}",
+		"date":  "{{ .Date }}",
+		"draft": true,
+	}
+
+	err = createDefaultArchetype(sourceFs, createpath, defaultArchetype, format)
+	if err != nil {
+		return err
+	}
+
 	return copyFiles(createpath, sourceFs, themeFs)
 }

@@ -71,12 +121,24 @@ func CreateSite(createpath string, sourceFs afero.Fs, force bool, format string)
 		}
 	}

-	err := newSiteCreateConfig(sourceFs, createpath, format)
+	siteConfig := map[string]any{
+		"baseURL":      "https://example.org/",
+		"title":        "My New Hugo Site",
+		"languageCode": "en-us",
+	}
+
+	err := createSiteConfig(sourceFs, createpath, siteConfig, format)
 	if err != nil {
 		return err
 	}

-	err = newSiteCreateArchetype(sourceFs, createpath, format)
+	defaultArchetype := map[string]any{
+		"title": "{{ replace .File.ContentBaseName \"-\" \" \" | title }}",
+		"date":  "{{ .Date }}",
+		"draft": true,
+	}
+
+	err = createDefaultArchetype(sourceFs, createpath, defaultArchetype, format)
 	if err != nil {
 		return err
 	}
@@ -99,13 +161,7 @@ func copyFiles(createpath string, sourceFs afero.Fs, skeleton embed.FS) error {
 	})
 }

-func newSiteCreateConfig(fs afero.Fs, createpath string, format string) (err error) {
-	in := map[string]string{
-		"baseURL":      "https://example.org/",
-		"title":        "My New Hugo Site",
-		"languageCode": "en-us",
-	}
-
+func createSiteConfig(fs afero.Fs, createpath string, in map[string]any, format string) (err error) {
 	var buf bytes.Buffer
 	err = parser.InterfaceToConfig(in, metadecoders.FormatFromString(format), &buf)
 	if err != nil {
@@ -115,13 +171,7 @@ func newSiteCreateConfig(fs afero.Fs, createpath string, format string) (err err
 	return helpers.WriteToDisk(filepath.Join(createpath, "hugo."+format), &buf, fs)
 }

-func newSiteCreateArchetype(fs afero.Fs, createpath string, format string) (err error) {
-	in := map[string]any{
-		"title": "{{ replace .File.ContentBaseName \"-\" \" \" | title }}",
-		"date":  "{{ .Date }}",
-		"draft": true,
-	}
-
+func createDefaultArchetype(fs afero.Fs, createpath string, in map[string]any, format string) (err error) {
 	var buf bytes.Buffer
 	err = parser.InterfaceToFrontMatter(in, metadecoders.FormatFromString(format), &buf)
 	if err != nil {
@@ -1,21 +0,0 @@
-MIT License
-
-Copyright (c) [year] [fullname]
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
@@ -1,7 +0,0 @@
-# Theme Name
-
-## Features
-
-## Installation
-
-## Configuration
@@ -1,5 +0,0 @@
-+++
-title = '{{ replace .File.ContentBaseName "-" " " | title }}'
-date = {{ .Date }}
-draft = true
-+++
@@ -1,23 +0,0 @@
-baseURL = 'https://example.org/'
-languageCode = 'en-US'
-title = 'My New Hugo Site'
-
-[[menus.main]]
-name = 'Home'
-pageRef = '/'
-weight = 10
-
-[[menus.main]]
-name = 'Posts'
-pageRef = '/posts'
-weight = 20
-
-[[menus.main]]
-name = 'Tags'
-pageRef = '/tags'
-weight = 30
-
-[module]
-  [module.hugoVersion]
-    extended = false
-    min = "0.116.0"
@@ -1,5 +1,5 @@
 {{- with resources.Get "css/main.css" }}
-  {{- if eq hugo.Environment "development" }}
+  {{- if hugo.IsDevelopment }}
    <link rel="stylesheet" href="{{ .RelPermalink }}">
  {{- else }}
    {{- with . | minify | fingerprint }}
@@ -0,0 +1,16 @@
+{{- with resources.Get "js/main.js" }}
+  {{- $opts := dict
+    "minify" (not hugo.IsDevelopment)
+    "sourceMap" (cond hugo.IsDevelopment "external" "")
+    "targetPath" "js/main.js"
+  }}
+  {{- with . | js.Build $opts }}
+    {{- if hugo.IsDevelopment }}
+      <script src="{{ .RelPermalink }}"></script>
+    {{- else }}
+      {{- with . | fingerprint }}
+        <script src="{{ .RelPermalink }}" integrity="{{ .Data.Integrity }}" crossorigin="anonymous"></script>
+      {{- end }}
+    {{- end }}
+  {{- end }}
+{{- end }}
@@ -18,7 +18,7 @@ Renders a menu for the given menu ID.
  </nav>
 {{- end }}

-{{- define "partials/inline/menu/walk.html" }}
+{{- define "_partials/inline/menu/walk.html" }}
  {{- $page := .page }}
  {{- range .menuEntries }}
    {{- $attrs := dict "href" .URL }}
@@ -1,12 +0,0 @@
-{{- with resources.Get "js/main.js" }}
-  {{- if eq hugo.Environment "development" }}
-    {{- with . | js.Build }}
-      <script src="{{ .RelPermalink }}"></script>
-    {{- end }}
-  {{- else }}
-    {{- $opts := dict "minify" true }}
-    {{- with . | js.Build $opts | fingerprint }}
-      <script src="{{ .RelPermalink }}" integrity="{{- .Data.Integrity }}" crossorigin="anonymous"></script>
-    {{- end }}
-  {{- end }}
-{{- end }}
@@ -0,0 +1,7 @@
+{{ define "main" }}
+  <h1>{{ .Title }}</h1>
+  {{ .Content }}
+  {{ range .Pages }}
+    <h2><a href="{{ .RelPermalink }}">{{ .LinkTitle }}</a></h2>
+  {{ end }}
+{{ end }}
@@ -0,0 +1,7 @@
+{{ define "main" }}
+  <h1>{{ .Title }}</h1>
+  {{ .Content }}
+  {{ range .Pages }}
+    <h2><a href="{{ .RelPermalink }}">{{ .LinkTitle }}</a></h2>
+  {{ end }}
+{{ end }}
@@ -1,31 +0,0 @@
-name = 'Theme name'
-license = 'MIT'
-licenselink = 'https://github.com/owner/repo/LICENSE'
-description = 'Theme description'
-
-# The home page of the theme, where the source can be found
-homepage = 'https://github.com/owner/repo'
-
-# If you have a running demo of the theme
-demosite = 'https://owner.github.io/repo'
-
-# Taxonomy terms
-tags = ['blog', 'company']
-features = ['some', 'awesome', 'features']
-
-# If the theme has multiple authors
-authors = [
-  {name = 'Name of author', homepage = 'Website of author'},
-  {name = 'Name of author', homepage = 'Website of author'}
-]
-
-# If the theme has a single author
-[author]
-  name = 'Your name'
-  homepage = 'Your website'
-
-# If porting an existing theme
-[original]
-  author = 'Name of original author'
-  homepage = 'Website of original author'
-  repo = 'https://github.com/owner/repo'
@@ -12,7 +12,6 @@
 // limitations under the License.

 //go:build withdeploy
-// +build withdeploy

 package deploy

@@ -12,7 +12,6 @@
 // limitations under the License.

 //go:build withdeploy
-// +build withdeploy

 package deploy

@@ -12,7 +12,6 @@
 // limitations under the License.

 //go:build !solaris && withdeploy
-// +build !solaris,withdeploy

 package deploy

@@ -12,7 +12,6 @@
 // limitations under the License.

 //go:build withdeploy
-// +build withdeploy

 package deploy

@@ -12,7 +12,6 @@
 // limitations under the License.

 //go:build withdeploy
-// +build withdeploy

 package deployconfig

@@ -12,7 +12,6 @@
 // limitations under the License.

 //go:build withdeploy
-// +build withdeploy

 package deploy

@@ -29,6 +29,7 @@ import (
 	"github.com/gohugoio/hugo/media"
 	"github.com/gohugoio/hugo/resources/page"
 	"github.com/gohugoio/hugo/resources/postpub"
+	"github.com/gohugoio/hugo/tpl/tplimpl"

 	"github.com/gohugoio/hugo/metrics"
 	"github.com/gohugoio/hugo/resources"
@@ -46,12 +47,6 @@ type Deps struct {

 	ExecHelper *hexec.Exec

-	// The templates to use. This will usually implement the full tpl.TemplateManager.
-	tmplHandlers *tpl.TemplateHandlers
-
-	// The template funcs.
-	TmplFuncMap map[string]any
-
 	// The file systems to use.
 	Fs *hugofs.Fs `json:"-"`

@@ -79,7 +74,8 @@ type Deps struct {
 	// The site building.
 	Site page.Site

-	TemplateProvider ResourceProvider
+	TemplateStore *tplimpl.TemplateStore
+
 	// Used in tests
 	OverloadedTemplateFuncs map[string]any

@@ -102,6 +98,9 @@ type Deps struct {
 	// This is common/global for all sites.
 	BuildState *BuildState

+	// Misc counters.
+	Counters *Counters
+
 	// Holds RPC dispatchers for Katex etc.
 	// TODO(bep) rethink this re. a plugin setup, but this will have to do for now.
 	WasmDispatchers *warpc.Dispatchers
@@ -109,9 +108,6 @@ type Deps struct {
 	// The JS batcher client.
 	JSBatcherClient js.BatcherClient

-	// The JS batcher client.
-	// JSBatcherClient *esbuild.BatcherClient
-
 	isClosed bool

 	*globalErrHandler
@@ -130,8 +126,8 @@ func (d Deps) Clone(s page.Site, conf config.AllProvider) (*Deps, error) {
 	return &d, nil
 }

-func (d *Deps) SetTempl(t *tpl.TemplateHandlers) {
-	d.tmplHandlers = t
+func (d *Deps) GetTemplateStore() *tplimpl.TemplateStore {
+	return d.TemplateStore
 }

 func (d *Deps) Init() error {
@@ -153,10 +149,12 @@ func (d *Deps) Init() error {
 			logger: d.Log,
 		}
 	}
-
 	if d.BuildState == nil {
 		d.BuildState = &BuildState{}
 	}
+	if d.Counters == nil {
+		d.Counters = &Counters{}
+	}
 	if d.BuildState.DeferredExecutions == nil {
 		if d.BuildState.DeferredExecutionsGroupedByRenderingContext == nil {
 			d.BuildState.DeferredExecutionsGroupedByRenderingContext = make(map[tpl.RenderingContext]*DeferredExecutions)
@@ -263,22 +261,17 @@ func (d *Deps) Init() error {
 	return nil
 }

+// TODO(bep) rework this to get it in line with how we manage templates.
 func (d *Deps) Compile(prototype *Deps) error {
 	var err error
 	if prototype == nil {
-		if err = d.TemplateProvider.NewResource(d); err != nil {
-			return err
-		}
+
 		if err = d.TranslationProvider.NewResource(d); err != nil {
 			return err
 		}
 		return nil
 	}

-	if err = d.TemplateProvider.CloneResource(d, prototype); err != nil {
-		return err
-	}
-
 	if err = d.TranslationProvider.CloneResource(d, prototype); err != nil {
 		return err
 	}
@@ -378,14 +371,6 @@ type ResourceProvider interface {
 	CloneResource(dst, src *Deps) error
 }

-func (d *Deps) Tmpl() tpl.TemplateHandler {
-	return d.tmplHandlers.Tmpl
-}
-
-func (d *Deps) TextTmpl() tpl.TemplateParseFinder {
-	return d.tmplHandlers.TxtTmpl
-}
-
 func (d *Deps) Close() error {
 	if d.isClosed {
 		return nil
@@ -454,6 +439,12 @@ type BuildState struct {
 	DeferredExecutionsGroupedByRenderingContext map[tpl.RenderingContext]*DeferredExecutions
 }

+// Misc counters.
+type Counters struct {
+	// Counter for the math.Counter function.
+	MathCounter atomic.Uint64
+}
+
 type DeferredExecutions struct {
 	// A set of filenames in /public that
 	// contains a post-processing prefix.
@@ -0,0 +1,13 @@
+# Config file for codespell.
+# https://github.com/codespell-project/codespell#using-a-config-file
+
+[codespell]
+
+# Comma separated list of dirs to be skipped.
+skip = _vendor,.cspell.json,chroma.css,chroma_dark.css
+
+# Comma separated list of words to be ignored. Words must be lowercased.
+ignore-words-list = abl,edn,te,ue,trys,januar,womens,crossreferences
+
+# Check file names as well.
+check-filenames = true
--- a/Show More
+++ b/Show More