Simplify page tree logic

This is preparation for #6041.

For historic reasons, the code for bulding the section tree and the taxonomies were very much separate.

This works, but makes it hard to extend, maintain, and possibly not so fast as it could be.

This simplification also introduces 3 slightly breaking changes, which I suspect most people will be pleased about. See referenced issues:

This commit also switches the radix tree dependency to a mutable implementation: github.com/armon/go-radix.

Fixes #6154
Fixes #6153
Fixes #6152

1 files changed, 7 insertions, 0 deletions

diff --git a/resources/page/page.go b/resources/page/page.go
index 00b449607..3b43b0af3 100644
--- a/resources/page/page.go
+++ b/resources/page/page.go
@@ -57,6 +57,13 @@ type AuthorProvider interface {
 // ChildCareProvider provides accessors to child resources.
 type ChildCareProvider interface {
 	Pages() Pages
+
+	// RegularPages returns a list of pages of kind 'Page'.
+	// In Hugo 0.57 we changed the Pages method so it returns all page
+	// kinds, even sections. If you want the old behaviour, you can
+	// use RegularPages.
+	RegularPages() Pages
+
 	Resources() resource.Resources
 }