Add a page template func

Fixes #9339

tpl/cast/init.go

@@ -14,6 +14,8 @@
 package cast
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.ToInt,

tpl/collections/apply.go

@@ -40,7 +40,7 @@ func (ns *Namespace) Apply(ctx context.Context, c any, fname string, args ...any
 		return nil, errors.New("can't iterate over a nil value")
 	}
 
-	fnv, found := ns.lookupFunc(fname)
+	fnv, found := ns.lookupFunc(ctx, fname)
 	if !found {
 		return nil, errors.New("can't find function " + fname)
 	}
@@ -106,7 +106,7 @@ func applyFnToThis(ctx context.Context, fn, this reflect.Value, args ...any) (re
 	return reflect.ValueOf(nil), res[1].Interface().(error)
 }
 
-func (ns *Namespace) lookupFunc(fname string) (reflect.Value, bool) {
+func (ns *Namespace) lookupFunc(ctx context.Context, fname string) (reflect.Value, bool) {
 	namespace, methodName, ok := strings.Cut(fname, ".")
 	if !ok {
 		templ := ns.deps.Tmpl().(tpl.TemplateFuncGetter)
@@ -114,16 +114,16 @@ func (ns *Namespace) lookupFunc(fname string) (reflect.Value, bool) {
 	}
 
 	// Namespace
-	nv, found := ns.lookupFunc(namespace)
+	nv, found := ns.lookupFunc(ctx, namespace)
 	if !found {
 		return reflect.Value{}, false
 	}
 
-	fn, ok := nv.Interface().(func(...any) (any, error))
+	fn, ok := nv.Interface().(func(context.Context, ...any) (any, error))
 	if !ok {
 		return reflect.Value{}, false
 	}
-	v, err := fn()
+	v, err := fn(ctx)
 	if err != nil {
 		panic(err)
 	}

tpl/collections/init.go

@@ -14,6 +14,8 @@
 package collections
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.After,

tpl/compare/init.go

@@ -14,6 +14,8 @@
 package compare
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/langs"
 	"github.com/gohugoio/hugo/tpl/internal"
@@ -31,7 +33,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Default,

tpl/crypto/init.go

@@ -14,6 +14,8 @@
 package crypto
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.MD5,

tpl/css/css.go

@@ -1,6 +1,8 @@
 package css
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/common/types/css"
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
@@ -31,7 +33,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		return ns

tpl/data/init.go

@@ -14,6 +14,8 @@
 package data
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.GetCSV,

tpl/debug/init.go

@@ -14,6 +14,8 @@
 package debug
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Dump,

tpl/diagrams/init.go

@@ -15,6 +15,8 @@
 package diagrams
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -29,7 +31,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		return ns

tpl/encoding/init.go

@@ -14,6 +14,8 @@
 package encoding
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Base64Decode,

tpl/fmt/init.go

@@ -14,6 +14,8 @@
 package fmt
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Print,

tpl/hugo/init.go

@@ -15,6 +15,8 @@
 package hugo
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -27,7 +29,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return h, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return h, nil },
 		}
 
 		// We just add the Hugo struct as the namespace here. No method mappings.

tpl/images/init.go

@@ -14,6 +14,8 @@
 package images
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Config,

tpl/inflect/init.go

@@ -14,6 +14,8 @@
 package inflect
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Humanize,

tpl/internal/go_templates/texttemplate/hugo_template.go

@@ -60,29 +60,29 @@ func NewExecuter(helper ExecHelper) Executer {
 }
 
 type (
-	dataContextKeyType    string
+	pageContextKeyType    string
 	hasLockContextKeyType string
 	stackContextKeyType   string
 )
 
 const (
-	// The data object passed to Execute or ExecuteWithContext gets stored with this key if not already set.
-	DataContextKey = dataContextKeyType("data")
+	// The data page passed to ExecuteWithContext gets stored with this key.
+	PageContextKey = pageContextKeyType("page")
 	// Used in partialCached to signal to nested templates that a lock is already taken.
 	HasLockContextKey = hasLockContextKeyType("hasLock")
 )
 
 // Note: The context is currently not fully implemeted in Hugo. This is a work in progress.
 func (t *executer) ExecuteWithContext(ctx context.Context, p Preparer, wr io.Writer, data any) error {
+	if ctx == nil {
+		panic("nil context")
+	}
+
 	tmpl, err := p.Prepare()
 	if err != nil {
 		return err
 	}
 
-	if v := ctx.Value(DataContextKey); v == nil {
-		ctx = context.WithValue(ctx, DataContextKey, data)
-	}
-
 	value, ok := data.(reflect.Value)
 	if !ok {
 		value = reflect.ValueOf(data)
@@ -102,28 +102,6 @@ func (t *executer) ExecuteWithContext(ctx context.Context, p Preparer, wr io.Wri
 	return tmpl.executeWithState(state, value)
 }
 
-func (t *executer) Execute(p Preparer, wr io.Writer, data any) error {
-	tmpl, err := p.Prepare()
-	if err != nil {
-		return err
-	}
-
-	value, ok := data.(reflect.Value)
-	if !ok {
-		value = reflect.ValueOf(data)
-	}
-
-	state := &state{
-		helper: t.helper,
-		prep:   p,
-		tmpl:   tmpl,
-		wr:     wr,
-		vars:   []variable{{"$", value}},
-	}
-
-	return tmpl.executeWithState(state, value)
-}
-
 // Prepare returns a template ready for execution.
 func (t *Template) Prepare() (*Template, error) {
 	return t, nil

tpl/internal/templatefuncsRegistry.go

@@ -17,6 +17,7 @@ package internal
 
 import (
 	"bytes"
+	"context"
 	"encoding/json"
 	"fmt"
 	"go/doc"
@@ -49,7 +50,7 @@ type TemplateFuncsNamespace struct {
 	Name string
 
 	// This is the method receiver.
-	Context func(v ...any) (any, error)
+	Context func(ctx context.Context, v ...any) (any, error)
 
 	// Additional info, aliases and examples, per method name.
 	MethodMappings map[string]TemplateFuncMethodMapping
@@ -172,7 +173,7 @@ func (namespaces TemplateFuncsNamespaces) MarshalJSON() ([]byte, error) {
 		if i != 0 {
 			buf.WriteString(",")
 		}
-		b, err := ns.toJSON()
+		b, err := ns.toJSON(context.TODO())
 		if err != nil {
 			return nil, err
 		}
@@ -188,7 +189,7 @@ var ignoreFuncs = map[string]bool{
 	"Reset": true,
 }
 
-func (t *TemplateFuncsNamespace) toJSON() ([]byte, error) {
+func (t *TemplateFuncsNamespace) toJSON(ctx context.Context) ([]byte, error) {
 	var buf bytes.Buffer
 
 	godoc := getGetTplPackagesGoDoc()[t.Name]
@@ -197,11 +198,11 @@ func (t *TemplateFuncsNamespace) toJSON() ([]byte, error) {
 
 	buf.WriteString(fmt.Sprintf(`%q: {`, t.Name))
 
-	ctx, err := t.Context()
+	tctx, err := t.Context(ctx)
 	if err != nil {
 		return nil, err
 	}
-	ctxType := reflect.TypeOf(ctx)
+	ctxType := reflect.TypeOf(tctx)
 	for i := 0; i < ctxType.NumMethod(); i++ {
 		method := ctxType.Method(i)
 		if ignoreFuncs[method.Name] {

tpl/js/init.go

@@ -14,6 +14,8 @@
 package js
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		return ns

tpl/lang/init.go

@@ -14,6 +14,8 @@
 package lang
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/langs"
 	"github.com/gohugoio/hugo/tpl/internal"
@@ -27,7 +29,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Translate,

tpl/math/init.go

@@ -14,6 +14,8 @@
 package math
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Add,

tpl/openapi/openapi3/init.go

@@ -14,6 +14,8 @@
 package openapi3
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Unmarshal,

tpl/os/init.go

@@ -14,6 +14,8 @@
 package os
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Getenv,

tpl/page/init.go

@@ -0,0 +1,49 @@
+// Copyright 2022 The Hugo Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package page provides template functions for accessing the current Page object,
+// the entry level context for the current template.
+package page
+
+import (
+	"context"
+
+	"github.com/gohugoio/hugo/deps"
+	"github.com/gohugoio/hugo/resources/page"
+	"github.com/gohugoio/hugo/tpl"
+
+	"github.com/gohugoio/hugo/tpl/internal"
+)
+
+const name = "page"
+
+func init() {
+	f := func(d *deps.Deps) *internal.TemplateFuncsNamespace {
+		ns := &internal.TemplateFuncsNamespace{
+			Name: name,
+			Context: func(ctx context.Context, args ...interface{}) (interface{}, error) {
+				v := tpl.GetPageFromContext(ctx)
+				if v == nil {
+					// The multilingual sitemap does not have a page as its context.
+					return nil, nil
+				}
+
+				return v.(page.Page), nil
+			},
+		}
+
+		return ns
+	}
+
+	internal.AddTemplateFuncsNamespace(f)
+}

tpl/page/integration_test.go

@@ -0,0 +1,179 @@
+// Copyright 2023 The Hugo Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package page_test
+
+import (
+	"fmt"
+	"strings"
+	"testing"
+
+	"github.com/gohugoio/hugo/hugolib"
+)
+
+func TestThatPageIsAvailableEverywhere(t *testing.T) {
+	t.Parallel()
+
+	filesTemplate := `
+-- config.toml --
+baseURL = 'http://example.com/'
+disableKinds = ["taxonomy", "term"]
+enableInlineShortcodes = true
+paginate = 1
+enableRobotsTXT = true
+LANG_CONFIG
+-- content/_index.md --
+---
+title: "Home"
+aliases: ["/homealias/"]
+---
+{{< shortcode "Angled Brackets" >}}
+{{% shortcode "Percentage" %}}
+
+{{< outer >}}
+{{< inner >}}
+{{< /outer >}}
+
+{{< foo.inline >}}{{ if page.IsHome }}Shortcode Inline OK.{{ end }}{{< /foo.inline >}}
+
+## Heading
+
+[I'm an inline-style link](https://www.google.com)
+
+![alt text](https://github.com/adam-p/markdown-here/raw/master/src/common/images/icon48.png "Logo Title Text 1")
+
+$$$bash
+echo "hello";
+$$$
+
+-- content/p1.md --
+-- content/p2/index.md --
+-- content/p2/p2_1.md --
+---
+title: "P2_1"
+---
+{{< foo.inline >}}{{ if page.IsHome }}Shortcode in bundled page OK.{{ else}}Failed.{{ end }}{{< /foo.inline >}}
+-- content/p3.md --
+-- layouts/_default/_markup/render-heading.html --
+{{ if page.IsHome }}
+Heading OK.
+{{ end }}
+-- layouts/_default/_markup/render-image.html --
+{{ if page.IsHome }}
+Image OK.
+{{ end }}
+-- layouts/_default/_markup/render-link.html --
+{{ if page.IsHome }}
+Link OK.
+{{ end }}
+-- layouts/_default/myview.html
+{{ if page.IsHome }}
+Render OK.
+{{ end }}
+-- layouts/_default/_markup/render-codeblock.html --
+{{ if page.IsHome }}
+Codeblock OK.
+{{ end }}
+-- layouts/_default/single.html --
+Single.
+-- layouts/index.html --
+{{ if eq page . }}Page OK.{{ end }}
+{{ $r := "{{ if page.IsHome }}ExecuteAsTemplate OK.{{ end }}" | resources.FromString "foo.html" |  resources.ExecuteAsTemplate "foo.html" . }}
+{{ $r.Content }}
+{{ .RenderString "{{< renderstring.inline >}}{{ if page.IsHome }}RenderString OK.{{ end }}{{< /renderstring.inline >}}}}"}}
+{{ .Render "myview" }}
+{{ .Content }}
+partial: {{ partials.Include "foo.html" . }}
+{{ $pag := (.Paginate site.RegularPages) }}
+PageNumber: {{ $pag.PageNumber }}/{{ $pag.TotalPages }}|
+{{ $p2 := site.GetPage "p2" }}
+{{ $p2_1 := index $p2.Resources 0 }}
+Bundled page: {{ $p2_1.Content }}
+-- layouts/alias.html --
+{{ if eq page .Page }}Alias OK.{{ else }}Failed.{{ end }}
+-- layouts/404.html --
+{{ if eq page . }}404 Page OK.{{ else }}Failed.{{ end }}
+-- layouts/partials/foo.html --
+{{ if page.IsHome }}Partial OK.{{ else }}Failed.{{ end }}
+-- layouts/shortcodes/outer.html --
+{{ .Inner }}
+-- layouts/shortcodes/inner.html --
+{{ if page.IsHome }}Shortcode Inner OK.{{ else }}Failed.{{ end }}
+-- layouts/shortcodes/shortcode.html --
+{{ if page.IsHome }}Shortcode {{ .Get 0 }} OK.{{ else }}Failed.{{ end }}
+-- layouts/sitemap.xml --
+HRE?{{ if eq page . }}Sitemap OK.{{ else }}Failed.{{ end }}
+-- layouts/robots.txt --
+{{ if eq page . }}Robots OK.{{ else }}Failed.{{ end }}
+-- layouts/sitemapindex.xml --
+{{ if not page }}SitemapIndex OK.{{ else }}Failed.{{ end }}
+
+  `
+
+	for _, multilingual := range []bool{false, true} {
+		t.Run(fmt.Sprintf("multilingual-%t", multilingual), func(t *testing.T) {
+			// Fenced code blocks.
+			files := strings.ReplaceAll(filesTemplate, "$$$", "```")
+
+			if multilingual {
+				files = strings.ReplaceAll(files, "LANG_CONFIG", `
+[languages]
+[languages.en]
+weight = 1
+[languages.no]
+weight = 2
+`)
+			} else {
+				files = strings.ReplaceAll(files, "LANG_CONFIG", "")
+			}
+
+			b := hugolib.NewIntegrationTestBuilder(
+				hugolib.IntegrationTestConfig{
+					T:           t,
+					TxtarString: files,
+				},
+			).Build()
+
+			b.AssertFileContent("public/index.html", `
+Heading OK.
+Image OK.
+Link OK.
+Codeblock OK.
+Page OK.
+Partial OK.
+Shortcode Angled Brackets OK.
+Shortcode Percentage OK.
+Shortcode Inner OK.
+Shortcode Inline OK.
+ExecuteAsTemplate OK.
+RenderString OK.
+Render OK.
+Shortcode in bundled page OK.
+	`)
+
+			b.AssertFileContent("public/404.html", `404 Page OK.`)
+			b.AssertFileContent("public/robots.txt", `Robots OK.`)
+			b.AssertFileContent("public/homealias/index.html", `Alias OK.`)
+			b.AssertFileContent("public/page/1/index.html", `Alias OK.`)
+			b.AssertFileContent("public/page/2/index.html", `Page OK.`)
+			if multilingual {
+				b.AssertFileContent("public/sitemap.xml", `SitemapIndex OK.`)
+			} else {
+				b.AssertFileContent("public/sitemap.xml", `Sitemap OK.`)
+			}
+
+		})
+
+	}
+
+}

tpl/partials/init.go

@@ -14,6 +14,8 @@
 package partials
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    namespaceName,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Include,

tpl/path/init.go

@@ -14,6 +14,7 @@
 package path
 
 import (
+	"context"
 	"fmt"
 	"path/filepath"
 
@@ -29,7 +30,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Split,

tpl/reflect/init.go

@@ -15,6 +15,8 @@
 package reflect
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -27,7 +29,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.IsMap,

tpl/resources/init.go

@@ -14,6 +14,8 @@
 package resources
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -30,7 +32,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Get,

tpl/resources/resources.go

@@ -15,11 +15,10 @@
 package resources
 
 import (
+	"context"
 	"fmt"
 	"sync"
 
-	"github.com/gohugoio/hugo/common/herrors"
-
 	"errors"
 
 	"github.com/gohugoio/hugo/common/maps"
@@ -227,7 +226,6 @@ func (ns *Namespace) ByType(typ any) resource.Resources {
 //
 // See Match for a more complete explanation about the rules used.
 func (ns *Namespace) Match(pattern any) resource.Resources {
-	defer herrors.Recover()
 	patternStr, err := cast.ToStringE(pattern)
 	if err != nil {
 		panic(err)
@@ -283,7 +281,7 @@ func (ns *Namespace) FromString(targetPathIn, contentIn any) (resource.Resource,
 
 // ExecuteAsTemplate creates a Resource from a Go template, parsed and executed with
 // the given data, and published to the relative target path.
-func (ns *Namespace) ExecuteAsTemplate(args ...any) (resource.Resource, error) {
+func (ns *Namespace) ExecuteAsTemplate(ctx context.Context, args ...any) (resource.Resource, error) {
 	if len(args) != 3 {
 		return nil, fmt.Errorf("must provide targetPath, the template data context and a Resource object")
 	}
@@ -298,7 +296,7 @@ func (ns *Namespace) ExecuteAsTemplate(args ...any) (resource.Resource, error) {
 		return nil, fmt.Errorf("type %T not supported in Resource transformations", args[2])
 	}
 
-	return ns.templatesClient.ExecuteAsTemplate(r, targetPath, data)
+	return ns.templatesClient.ExecuteAsTemplate(ctx, r, targetPath, data)
 }
 
 // Fingerprint transforms the given Resource with a MD5 hash of the content in

tpl/safe/init.go

@@ -14,6 +14,8 @@
 package safe
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.CSS,

tpl/site/init.go

@@ -15,6 +15,8 @@
 package site
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 
 	"github.com/gohugoio/hugo/tpl/internal"
@@ -27,7 +29,7 @@ func init() {
 		s := d.Site
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return s, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return s, nil },
 		}
 
 		if s == nil {

tpl/strings/init.go

@@ -14,6 +14,8 @@
 package strings
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Chomp,

tpl/template.go

@@ -59,7 +59,6 @@ type UnusedTemplatesProvider interface {
 // TemplateHandler finds and executes templates.
 type TemplateHandler interface {
 	TemplateFinder
-	Execute(t Template, wr io.Writer, data any) error
 	ExecuteWithContext(ctx context.Context, t Template, wr io.Writer, data any) error
 	LookupLayout(d output.LayoutDescriptor, f output.Format) (Template, bool, error)
 	HasTemplate(name string) bool
@@ -153,10 +152,18 @@ type TemplateFuncGetter interface {
 	GetFunc(name string) (reflect.Value, bool)
 }
 
-// GetDataFromContext returns the template data context (usually .Page) from ctx if set.
-// NOte: This is not fully implemented yet.
-func GetDataFromContext(ctx context.Context) any {
-	return ctx.Value(texttemplate.DataContextKey)
+// GetPageFromContext returns the top level Page.
+func GetPageFromContext(ctx context.Context) any {
+	return ctx.Value(texttemplate.PageContextKey)
+}
+
+// SetPageInContext sets the top level Page.
+func SetPageInContext(ctx context.Context, p page) context.Context {
+	return context.WithValue(ctx, texttemplate.PageContextKey, p)
+}
+
+type page interface {
+	IsNode() bool
 }
 
 func GetHasLockFromContext(ctx context.Context) bool {

tpl/templates/init.go

@@ -14,6 +14,8 @@
 package templates
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Exists,

tpl/time/init.go

@@ -14,6 +14,7 @@
 package time
 
 import (
+	"context"
 	"errors"
 
 	"github.com/gohugoio/hugo/deps"
@@ -32,7 +33,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name: name,
-			Context: func(args ...any) (any, error) {
+			Context: func(cctx context.Context, args ...any) (any, error) {
 				// Handle overlapping "time" namespace and func.
 				//
 				// If no args are passed to `time`, assume namespace usage and

tpl/tplimpl/template.go

@@ -232,6 +232,10 @@ func (t templateExec) Clone(d *deps.Deps) *templateExec {
 }
 
 func (t *templateExec) Execute(templ tpl.Template, wr io.Writer, data any) error {
+	// TOD1
+	if true {
+		//panic("not implemented")
+	}
 	return t.ExecuteWithContext(context.Background(), templ, wr, data)
 }
 

tpl/transform/init.go

@@ -14,6 +14,8 @@
 package transform
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.Emojify,

tpl/urls/init.go

@@ -14,6 +14,8 @@
 package urls
 
 import (
+	"context"
+
 	"github.com/gohugoio/hugo/deps"
 	"github.com/gohugoio/hugo/tpl/internal"
 )
@@ -26,7 +28,7 @@ func init() {
 
 		ns := &internal.TemplateFuncsNamespace{
 			Name:    name,
-			Context: func(args ...any) (any, error) { return ctx, nil },
+			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
 		}
 
 		ns.AddMethodMapping(ctx.AbsURL,