X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/c502c5a50aae825683ee4cff629c6839a4209501..b041a675c577e174680913e0da0bf69b1cca83b6:/sdk/go/arvados/fs_base.go

diff --git a/sdk/go/arvados/fs_base.go b/sdk/go/arvados/fs_base.go
index 0cde825b38..2ad4d1f859 100644
--- a/sdk/go/arvados/fs_base.go
+++ b/sdk/go/arvados/fs_base.go
@@ -234,15 +234,14 @@ type fileinfo struct {
 	mode    os.FileMode
 	size    int64
 	modTime time.Time
-	// Source data structure: *Collection, *Group, or
-	// nil. Currently populated only for project dirs and
-	// top-level collection dirs; *not* populated for
-	// /by_id/{uuid} dirs (only subdirs below that). Does not stay
-	// up to date with upstream changes.
+	// If not nil, sys() returns the source data structure, which
+	// can be a *Collection, *Group, or nil. Currently populated
+	// only for project dirs and top-level collection dirs. Does
+	// not stay up to date with upstream changes.
 	//
 	// Intended to support keep-web's properties-as-s3-metadata
 	// feature (https://dev.arvados.org/issues/19088).
-	sys interface{}
+	sys func() interface{}
 }
 
 // Name implements os.FileInfo.
@@ -272,7 +271,10 @@ func (fi fileinfo) Size() int64 {
 
 // Sys implements os.FileInfo. See comment in fileinfo struct.
 func (fi fileinfo) Sys() interface{} {
-	return fi.sys
+	if fi.sys == nil {
+		return nil
+	}
+	return fi.sys()
 }
 
 type nullnode struct{}