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Add page fragments support to Related

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The main topic of this commit is that you can now index fragments (content heading identifiers) when calling `.Related`.

You can do this by:

* Configure one or more indices with type `fragments`
* The name of those index configurations maps to an (optional) front matter slice with fragment references. This allows you to link
page<->fragment and page<->page.
* This also will index all the fragments (heading identifiers) of the pages.

It's also possible to use type `fragments` indices in shortcode, e.g.:

```
{{ $related := site.RegularPages.Related .Page }}
```

But, and this is important, you need to include the shortcode using the `{{<` delimiter. Not doing so will create infinite loops and timeouts.

This commit also:

* Adds two new methods to Page: Fragments (can also be used to build ToC) and HeadingsFiltered (this is only used in Related Content with
index type `fragments` and `enableFilter` set to true.
* Consolidates all `.Related*` methods into one, which takes either a `Page` or an options map as its only argument.
* Add `context.Context` to all of the content related Page API. Turns out it wasn't strictly needed for this particular feature, but it will
soon become usefil, e.g. in #9339.

Closes #10711
Updates #9339
Updates #10725
This commit is contained in:
Bjørn Erik Pedersen
2023-02-11 16:20:24 +01:00
parent 0afec0a9f4
commit 90da7664bf
66 changed files with 1363 additions and 829 deletions
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22
hugolib/site.go
View File

@@ -14,6 +14,7 @@
package hugolib
import (
"context"
"fmt"
"html/template"
"io"
@@ -173,7 +174,7 @@ type Site struct {
}
func (s *Site) Taxonomies() page.TaxonomyList {
s.init.taxonomies.Do()
s.init.taxonomies.Do(context.Background())
return s.taxonomies
}
@@ -214,8 +215,9 @@ func (init *siteInit) Reset() {
init.taxonomies.Reset()
}
func (s *Site) initInit(init *lazy.Init, pctx pageContext) bool {
_, err := init.Do()
func (s *Site) initInit(ctx context.Context, init *lazy.Init, pctx pageContext) bool {
_, err := init.Do(ctx)
if err != nil {
s.h.FatalError(pctx.wrapError(err))
}
@@ -227,7 +229,7 @@ func (s *Site) prepareInits() {
var init lazy.Init
s.init.prevNext = init.Branch(func() (any, error) {
s.init.prevNext = init.Branch(func(context.Context) (any, error) {
regularPages := s.RegularPages()
for i, p := range regularPages {
np, ok := p.(nextPrevProvider)
@@ -254,7 +256,7 @@ func (s *Site) prepareInits() {
return nil, nil
})
s.init.prevNextInSection = init.Branch(func() (any, error) {
s.init.prevNextInSection = init.Branch(func(context.Context) (any, error) {
var sections page.Pages
s.home.treeRef.m.collectSectionsRecursiveIncludingSelf(pageMapQuery{Prefix: s.home.treeRef.key}, func(n *contentNode) {
sections = append(sections, n.p)
@@ -311,12 +313,12 @@ func (s *Site) prepareInits() {
return nil, nil
})
s.init.menus = init.Branch(func() (any, error) {
s.init.menus = init.Branch(func(context.Context) (any, error) {
s.assembleMenus()
return nil, nil
})
s.init.taxonomies = init.Branch(func() (any, error) {
s.init.taxonomies = init.Branch(func(context.Context) (any, error) {
err := s.pageMap.assembleTaxonomies()
return nil, err
})
@@ -327,7 +329,7 @@ type siteRenderingContext struct {
}
func (s *Site) Menus() navigation.Menus {
s.init.menus.Do()
s.init.menus.Do(context.Background())
return s.menus
}
@@ -1821,7 +1823,9 @@ func (s *Site) renderForTemplate(name, outputFormat string, d any, w io.Writer,
return nil
}
if err = s.Tmpl().Execute(templ, w, d); err != nil {
ctx := context.Background()
if err = s.Tmpl().ExecuteWithContext(ctx, templ, w, d); err != nil {
return fmt.Errorf("render of %q failed: %w", name, err)
}
return