From c81833a1924ca2d9f78573d2d97f0d32a230782a Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Sat, 12 Feb 2022 23:08:56 -0800
Subject: [PATCH] add directory setAttr

---
 weed/mount/weedfs_attr.go | 31 +++++++++++++++++++-
 weed/mount/wfs_save.go    | 59 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 89 insertions(+), 1 deletion(-)
 create mode 100644 weed/mount/wfs_save.go

diff --git a/weed/mount/weedfs_attr.go b/weed/mount/weedfs_attr.go
index cbc07a914..09acd303b 100644
--- a/weed/mount/weedfs_attr.go
+++ b/weed/mount/weedfs_attr.go
@@ -26,7 +26,36 @@ func (wfs *WFS) GetAttr(cancel <-chan struct{}, input *fuse.GetAttrIn, out *fuse
 }
 
 func (wfs *WFS) SetAttr(cancel <-chan struct{}, input *fuse.SetAttrIn, out *fuse.AttrOut) (code fuse.Status) {
-	return fuse.ENOSYS
+
+	// TODO this is only for directory. Filet setAttr involves open files and truncate to a size
+
+	path, entry, status := wfs.maybeReadEntry(input.NodeId)
+	if status != fuse.OK {
+		return status
+	}
+
+	if mode, ok := input.GetMode(); ok {
+		entry.Attributes.FileMode = uint32(mode)
+	}
+
+	if uid, ok := input.GetUID(); ok {
+		entry.Attributes.Uid = uid
+	}
+
+	if gid, ok := input.GetGID(); ok {
+		entry.Attributes.Gid = gid
+	}
+
+	if mtime, ok := input.GetMTime(); ok {
+		entry.Attributes.Mtime = mtime.Unix()
+	}
+
+	entry.Attributes.Mtime = time.Now().Unix()
+	out.AttrValid = 1
+	wfs.setAttrByPbEntry(&out.Attr, input.NodeId, entry)
+
+	return wfs.saveEntry(path, entry)
+
 }
 func (wfs *WFS) GetXAttr(cancel <-chan struct{}, header *fuse.InHeader, attr string, dest []byte) (size uint32, code fuse.Status) {
 	return 0, fuse.ENOSYS
diff --git a/weed/mount/wfs_save.go b/weed/mount/wfs_save.go
new file mode 100644
index 000000000..240c010d8
--- /dev/null
+++ b/weed/mount/wfs_save.go
@@ -0,0 +1,59 @@
+package mount
+
+import (
+	"context"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"github.com/hanwen/go-fuse/v2/fuse"
+)
+
+func (wfs *WFS) saveEntry(path util.FullPath, entry *filer_pb.Entry) (code fuse.Status) {
+
+	parentDir, _ := path.DirAndName()
+
+	err := wfs.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
+
+		wfs.mapPbIdFromLocalToFiler(entry)
+		defer wfs.mapPbIdFromFilerToLocal(entry)
+
+		request := &filer_pb.UpdateEntryRequest{
+			Directory:  parentDir,
+			Entry:      entry,
+			Signatures: []int32{wfs.signature},
+		}
+
+		glog.V(1).Infof("save entry: %v", request)
+		_, err := client.UpdateEntry(context.Background(), request)
+		if err != nil {
+			return fmt.Errorf("UpdateEntry dir %s: %v", path, err)
+		}
+
+		if err := wfs.metaCache.UpdateEntry(context.Background(), filer.FromPbEntry(request.Directory, request.Entry)); err != nil {
+			return fmt.Errorf("UpdateEntry dir %s: %v", path, err)
+		}
+
+		return nil
+	})
+	if err != nil {
+		glog.Errorf("saveEntry %s: %v", path, err)
+		return fuse.EIO
+	}
+
+	return fuse.OK
+}
+
+func (wfs *WFS) mapPbIdFromFilerToLocal(entry *filer_pb.Entry) {
+	if entry.Attributes == nil {
+		return
+	}
+	entry.Attributes.Uid, entry.Attributes.Gid = wfs.option.UidGidMapper.FilerToLocal(entry.Attributes.Uid, entry.Attributes.Gid)
+}
+func (wfs *WFS) mapPbIdFromLocalToFiler(entry *filer_pb.Entry) {
+	if entry.Attributes == nil {
+		return
+	}
+	entry.Attributes.Uid, entry.Attributes.Gid = wfs.option.UidGidMapper.LocalToFiler(entry.Attributes.Uid, entry.Attributes.Gid)
+}