Fix handling of top-level page bundles

Fixes #4332

source/fileInfo.go

@@ -54,6 +54,7 @@ type File interface {
 	LogicalName() string
 
 	// Section is first directory below the content root.
+	// For page bundles in root, the Section will be empty.
 	Section() string
 
 	// BaseFileName is a filename without extension.
@@ -99,6 +100,7 @@ type FileInfo struct {
 	baseName            string
 	translationBaseName string
 	section             string
+	isLeafBundle        bool
 
 	uniqueID string
 
@@ -142,16 +144,12 @@ func (fi *FileInfo) String() string { return fi.BaseFileName() }
 // in some cases that is slightly expensive to construct.
 func (fi *FileInfo) init() {
 	fi.lazyInit.Do(func() {
-		parts := strings.Split(fi.relDir, helpers.FilePathSeparator)
+		relDir := strings.Trim(fi.relDir, helpers.FilePathSeparator)
+		parts := strings.Split(relDir, helpers.FilePathSeparator)
+
 		var section string
-		if len(parts) == 1 {
+		if (!fi.isLeafBundle && len(parts) == 1) || len(parts) > 1 {
 			section = parts[0]
-		} else if len(parts) > 1 {
-			if parts[0] == "" {
-				section = parts[1]
-			} else {
-				section = parts[0]
-			}
 		}
 
 		fi.section = section
@@ -161,7 +159,7 @@ func (fi *FileInfo) init() {
 	})
 }
 
-func (sp *SourceSpec) NewFileInfo(baseDir, filename string, fi os.FileInfo) *FileInfo {
+func (sp *SourceSpec) NewFileInfo(baseDir, filename string, isLeafBundle bool, fi os.FileInfo) *FileInfo {
 
 	dir, name := filepath.Split(filename)
 	if !strings.HasSuffix(dir, helpers.FilePathSeparator) {
@@ -204,6 +202,7 @@ func (sp *SourceSpec) NewFileInfo(baseDir, filename string, fi os.FileInfo) *Fil
 		name:                name,
 		baseName:            baseName,
 		translationBaseName: translationBaseName,
+		isLeafBundle:        isLeafBundle,
 	}
 
 	return f

source/fileInfo_test.go

@@ -34,10 +34,15 @@ func TestFileInfo(t *testing.T) {
 			assert.Equal(filepath.FromSlash("/a/b/page.md"), f.Filename())
 			assert.Equal(filepath.FromSlash("b/"), f.Dir())
 			assert.Equal(filepath.FromSlash("b/page.md"), f.Path())
+			assert.Equal("b", f.Section())
+
+		}},
+		{filepath.FromSlash("/a/"), filepath.FromSlash("/a/b/c/d/page.md"), func(f *FileInfo) {
+			assert.Equal("b", f.Section())
 
 		}},
 	} {
-		f := s.NewFileInfo(this.base, this.filename, nil)
+		f := s.NewFileInfo(this.base, this.filename, false, nil)
 		this.assert(f)
 	}
 

source/filesystem.go

@@ -57,7 +57,7 @@ func (f *Filesystem) add(name string, fi os.FileInfo) (err error) {
 		name = norm.NFC.String(name)
 	}
 
-	file = f.SourceSpec.NewFileInfo(f.Base, name, fi)
+	file = f.SourceSpec.NewFileInfo(f.Base, name, false, fi)
 	f.files = append(f.files, file)
 
 	return err