hugofs: Add includeFiles and excludeFiles to mount configuration

Fixes #9042

1 files changed, 4 insertions, 2 deletions

diff --git a/create/content.go b/create/content.go
index 7f444f9df..914c16bec 100644
--- a/create/content.go
+++ b/create/content.go
@@ -137,8 +137,9 @@ func (b *contentBuilder) buildDir() error {
 	if !b.dirMap.siteUsed {
 		// We don't need to build everything.
 		contentInclusionFilter = glob.NewFilenameFilterForInclusionFunc(func(filename string) bool {
+			filename = strings.TrimPrefix(filename, string(os.PathSeparator))
 			for _, cn := range contentTargetFilenames {
-				if strings.HasPrefix(cn, filename) {
+				if strings.Contains(cn, filename) {
 					return true
 				}
 			}
@@ -205,7 +206,8 @@ func (b *contentBuilder) buildFile() error {
 	if !usesSite {
 		// We don't need to build everything.
 		contentInclusionFilter = glob.NewFilenameFilterForInclusionFunc(func(filename string) bool {
-			return strings.HasPrefix(contentPlaceholderAbsFilename, filename)
+			filename = strings.TrimPrefix(filename, string(os.PathSeparator))
+			return strings.Contains(contentPlaceholderAbsFilename, filename)
 		})
 	}