Fix GetPage on section/bundle name overlaps

In the internal Radix we stored the directory based nodes without a traling slash, e.g. `/blog`.

The original motivation was probably to make it easy to do prefix searching: Give me all ancestors.

This, however have lead to some ambigouty with overlapping directory names.

This particular problem was, however, not possible to work around in an easy way, so from now we store these as `/blog/`.

Fixes #7301

hugolib/content_map_page.go

@@ -70,7 +70,7 @@ func (m *pageMap) createMissingTaxonomyNodes() error {
 	m.taxonomyEntries.Walk(func(s string, v interface{}) bool {
 		n := v.(*contentNode)
 		vi := n.viewInfo
-		k := cleanTreeKey(vi.name.plural + "/" + vi.termKey)
+		k := cleanSectionTreeKey(vi.name.plural + "/" + vi.termKey)
 
 		if _, found := m.taxonomies.Get(k); !found {
 			vic := &contentBundleViewInfo{
@@ -266,6 +266,7 @@ func (m *pageMap) newResource(fim hugofs.FileMetaInfo, owner *pageState) (resour
 
 func (m *pageMap) createSiteTaxonomies() error {
 	m.s.taxonomies = make(TaxonomyList)
+	var walkErr error
 	m.taxonomies.Walk(func(s string, v interface{}) bool {
 		n := v.(*contentNode)
 		t := n.viewInfo
@@ -276,7 +277,11 @@ func (m *pageMap) createSiteTaxonomies() error {
 			m.s.taxonomies[viewName.plural] = make(Taxonomy)
 		} else {
 			taxonomy := m.s.taxonomies[viewName.plural]
-			m.taxonomyEntries.WalkPrefix(s+"/", func(ss string, v interface{}) bool {
+			if taxonomy == nil {
+				walkErr = errors.Errorf("missing taxonomy: %s", viewName.plural)
+				return true
+			}
+			m.taxonomyEntries.WalkPrefix(s, func(ss string, v interface{}) bool {
 				b2 := v.(*contentNode)
 				info := b2.viewInfo
 				taxonomy.add(info.termKey, page.NewWeightedPage(info.weight, info.ref.p, n.p))
@@ -294,7 +299,7 @@ func (m *pageMap) createSiteTaxonomies() error {
 		}
 	}
 
-	return nil
+	return walkErr
 }
 
 func (m *pageMap) createListAllPages() page.Pages {
@@ -426,7 +431,6 @@ func (m *pageMap) assembleSections() error {
 
 	m.sections.Walk(func(s string, v interface{}) bool {
 		n := v.(*contentNode)
-
 		var shouldBuild bool
 
 		defer func() {
@@ -596,11 +600,12 @@ func (m *pageMap) attachPageToViews(s string, b *contentNode) {
 				},
 			}
 
-			if s == "/" {
-				// To avoid getting an empty key.
-				s = page.KindHome
+			var key string
+			if strings.HasSuffix(s, "/") {
+				key = cleanSectionTreeKey(path.Join(viewName.plural, termKey, s))
+			} else {
+				key = cleanTreeKey(path.Join(viewName.plural, termKey, s))
 			}
-			key := cleanTreeKey(path.Join(viewName.plural, termKey, s))
 			m.taxonomyEntries.Insert(key, bv)
 		}
 	}
@@ -638,19 +643,10 @@ func (m *pageMap) collectPagesAndSections(query pageMapQuery, fn func(c *content
 }
 
 func (m *pageMap) collectSections(query pageMapQuery, fn func(c *contentNode)) error {
-	var level int
-	isHome := query.Prefix == "/"
-
-	if !isHome {
-		level = strings.Count(query.Prefix, "/")
-	}
+	level := strings.Count(query.Prefix, "/")
 
 	return m.collectSectionsFn(query, func(s string, c *contentNode) bool {
-		if s == query.Prefix {
-			return false
-		}
-
-		if (strings.Count(s, "/") - level) != 1 {
+		if strings.Count(s, "/") != level+1 {
 			return false
 		}
 
@@ -745,10 +741,11 @@ func (m *pageMaps) AssemblePages() error {
 			return err
 		}
 
-		a := (&sectionWalker{m: pm.contentMap}).applyAggregates()
+		sw := &sectionWalker{m: pm.contentMap}
+		a := sw.applyAggregates()
 		_, mainSectionsSet := pm.s.s.Info.Params()["mainsections"]
 		if !mainSectionsSet && a.mainSection != "" {
-			mainSections := []string{a.mainSection}
+			mainSections := []string{strings.TrimRight(a.mainSection, "/")}
 			pm.s.s.Info.Params()["mainSections"] = mainSections
 			pm.s.s.Info.Params()["mainsections"] = mainSections
 		}
@@ -847,7 +844,7 @@ func (b *pagesMapBucket) getTaxonomies() page.Pages {
 	b.sectionsInit.Do(func() {
 		var pas page.Pages
 		ref := b.owner.treeRef
-		ref.m.collectTaxonomies(ref.key+"/", func(c *contentNode) {
+		ref.m.collectTaxonomies(ref.key, func(c *contentNode) {
 			pas = append(pas, c.p)
 		})
 		page.SortByDefault(pas)
@@ -888,8 +885,12 @@ type sectionAggregateHandler struct {
 	s string
 }
 
+func (h *sectionAggregateHandler) String() string {
+	return fmt.Sprintf("%s/%s - %d - %s", h.sectionAggregate.datesAll, h.sectionAggregate.datesSection, h.sectionPageCount, h.s)
+}
+
 func (h *sectionAggregateHandler) isRootSection() bool {
-	return h.s != "/" && strings.Count(h.s, "/") == 1
+	return h.s != "/" && strings.Count(h.s, "/") == 2
 }
 
 func (h *sectionAggregateHandler) handleNested(v sectionWalkHandler) error {
@@ -963,11 +964,13 @@ func (w *sectionWalker) applyAggregates() *sectionAggregateHandler {
 func (w *sectionWalker) walkLevel(prefix string, createVisitor func() sectionWalkHandler) sectionWalkHandler {
 
 	level := strings.Count(prefix, "/")
+
 	visitor := createVisitor()
 
-	w.m.taxonomies.WalkPrefix(prefix, func(s string, v interface{}) bool {
+	w.m.taxonomies.WalkBelow(prefix, func(s string, v interface{}) bool {
 		currentLevel := strings.Count(s, "/")
-		if currentLevel > level {
+
+		if currentLevel > level+1 {
 			return false
 		}
 
@@ -977,8 +980,8 @@ func (w *sectionWalker) walkLevel(prefix string, createVisitor func() sectionWal
 			return true
 		}
 
-		if currentLevel == 1 {
-			nested := w.walkLevel(s+"/", createVisitor)
+		if currentLevel == 2 {
+			nested := w.walkLevel(s, createVisitor)
 			if w.err = visitor.handleNested(nested); w.err != nil {
 				return true
 			}
@@ -995,9 +998,9 @@ func (w *sectionWalker) walkLevel(prefix string, createVisitor func() sectionWal
 		return w.err != nil
 	})
 
-	w.m.sections.WalkPrefix(prefix, func(s string, v interface{}) bool {
+	w.m.sections.WalkBelow(prefix, func(s string, v interface{}) bool {
 		currentLevel := strings.Count(s, "/")
-		if currentLevel > level {
+		if currentLevel > level+1 {
 			return false
 		}
 
@@ -1016,11 +1019,9 @@ func (w *sectionWalker) walkLevel(prefix string, createVisitor func() sectionWal
 			return true
 		}
 
-		if s != "/" {
-			nested := w.walkLevel(s+"/", createVisitor)
-			if w.err = visitor.handleNested(nested); w.err != nil {
-				return true
-			}
+		nested := w.walkLevel(s, createVisitor)
+		if w.err = visitor.handleNested(nested); w.err != nil {
+			return true
 		}
 
 		w.err = visitor.handleSectionPost()