From 6da52d76a70bb8f69ced1d3b6ef260626e3ce03a Mon Sep 17 00:00:00 2001
From: nielash <nielronash@gmail.com>
Date: Tue, 19 Dec 2023 12:00:37 -0500
Subject: [PATCH] fs: implement DirSetModTime optional feature

---
 fs/features.go | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/fs/features.go b/fs/features.go
index 060c4cc37..a6ec21e30 100644
--- a/fs/features.go
+++ b/fs/features.go
@@ -117,6 +117,9 @@ type Features struct {
 	// in into the first one and rmdirs the other directories.
 	MergeDirs func(ctx context.Context, dirs []Directory) error
 
+	// DirSetModTime sets the metadata on the directory to set the modification date
+	DirSetModTime func(ctx context.Context, dir string, modTime time.Time) error
+
 	// CleanUp the trash in the Fs
 	//
 	// Implement this if you have a way of emptying the trash or
@@ -297,6 +300,9 @@ func (ft *Features) Fill(ctx context.Context, f Fs) *Features {
 	if do, ok := f.(MergeDirser); ok {
 		ft.MergeDirs = do.MergeDirs
 	}
+	if do, ok := f.(DirSetModTimer); ok {
+		ft.DirSetModTime = do.DirSetModTime
+	}
 	if do, ok := f.(CleanUpper); ok {
 		ft.CleanUp = do.CleanUp
 	}
@@ -392,6 +398,9 @@ func (ft *Features) Mask(ctx context.Context, f Fs) *Features {
 	if mask.MergeDirs == nil {
 		ft.MergeDirs = nil
 	}
+	if mask.DirSetModTime == nil {
+		ft.DirSetModTime = nil
+	}
 	if mask.CleanUp == nil {
 		ft.CleanUp = nil
 	}
@@ -578,6 +587,12 @@ type MergeDirser interface {
 	MergeDirs(ctx context.Context, dirs []Directory) error
 }
 
+// DirSetModTimer is an optional interface for Fs
+type DirSetModTimer interface {
+	// DirSetModTime sets the metadata on the directory to set the modification date
+	DirSetModTime(ctx context.Context, dir string, modTime time.Time) error
+}
+
 // CleanUpper is an optional interfaces for Fs
 type CleanUpper interface {
 	// CleanUp the trash in the Fs