From cac9aa4483995a2cf0335b5333c71659bea3b3c0 Mon Sep 17 00:00:00 2001
From: "Piotr S. Staszewski" <p.staszewski@gmail.com>
Date: Tue, 1 Jul 2014 21:49:17 +0200
Subject: [PATCH] fs: handle directory permanode titles

Set corresponding permanode title on new root,
new directory and directory rename.

Change-Id: I5432e14ef57d6c0c5555b11e895e8b8ad6d8efcf
---
 pkg/fs/mut.go   | 29 ++++++++++++++++++++++++-----
 pkg/fs/roots.go | 16 +++++++++++++---
 2 files changed, 37 insertions(+), 8 deletions(-)

diff --git a/pkg/fs/mut.go b/pkg/fs/mut.go
index c584a6e08..5d3518d33 100644
--- a/pkg/fs/mut.go
+++ b/pkg/fs/mut.go
@@ -380,6 +380,12 @@ func (n *mutDir) creat(name string, typ nodeType) (fs.Node, error) {
 			_, err = n.fs.client.UploadAndSignBlob(claim)
 			return
 		})
+		grp.Go(func() (err error) {
+			// Set the permanode title to the directory name
+			claim := schema.NewSetAttributeClaim(pr.BlobRef, "title", name)
+			_, err = n.fs.client.UploadAndSignBlob(claim)
+			return
+		})
 	}
 	if err := grp.Err(); err != nil {
 		return nil, err
@@ -478,11 +484,24 @@ func (n *mutDir) Rename(req *fuse.RenameRequest, newDir fs.Node, intr fs.Intr) f
 		return fuse.EIO
 	}
 
-	delClaim := schema.NewDelAttributeClaim(n.permanode, "camliPath:"+req.OldName, "")
-	delClaim.SetClaimDate(now)
-	_, err = n.fs.client.UploadAndSignBlob(delClaim)
-	if err != nil {
-		log.Printf("Upload rename src unlink error: %v", err)
+	var grp syncutil.Group
+	// Unlink the dest permanode from the source.
+	grp.Go(func() (err error) {
+		delClaim := schema.NewDelAttributeClaim(n.permanode, "camliPath:"+req.OldName, "")
+		delClaim.SetClaimDate(now)
+		_, err = n.fs.client.UploadAndSignBlob(delClaim)
+		return
+	})
+	// If target is a directory then update its title.
+	if dir, ok := target.(*mutDir); ok {
+		grp.Go(func() (err error) {
+			claim := schema.NewSetAttributeClaim(dir.permanode, "title", req.NewName)
+			_, err = n.fs.client.UploadAndSignBlob(claim)
+			return
+		})
+	}
+	if err := grp.Err(); err != nil {
+		log.Printf("Upload rename unlink/title error: %v", err)
 		return fuse.EIO
 	}
 
diff --git a/pkg/fs/roots.go b/pkg/fs/roots.go
index b5dc12395..e5c428c75 100644
--- a/pkg/fs/roots.go
+++ b/pkg/fs/roots.go
@@ -305,10 +305,20 @@ func (n *rootsDir) Mkdir(req *fuse.MkdirRequest, intr fs.Intr) (fs.Node, fuse.Er
 		return nil, fuse.EIO
 	}
 
+	var grp syncutil.Group
 	// Add a camliRoot attribute to the root permanode.
-	claim := schema.NewSetAttributeClaim(pr.BlobRef, "camliRoot", name)
-	_, err = n.fs.client.UploadAndSignBlob(claim)
-	if err != nil {
+	grp.Go(func() (err error) {
+		claim := schema.NewSetAttributeClaim(pr.BlobRef, "camliRoot", name)
+		_, err = n.fs.client.UploadAndSignBlob(claim)
+		return
+	})
+	// Set the title of the root permanode to the root name.
+	grp.Go(func() (err error) {
+		claim := schema.NewSetAttributeClaim(pr.BlobRef, "title", name)
+		_, err = n.fs.client.UploadAndSignBlob(claim)
+		return
+	})
+	if err := grp.Err(); err != nil {
 		log.Printf("rootsDir.Create(%q): %v", name, err)
 		return nil, fuse.EIO
 	}