From cb788ca2d2b68b9bf639764742a3a93854bf97d3 Mon Sep 17 00:00:00 2001
From: Adin Schmahmann <adin.schmahmann@gmail.com>
Date: Wed, 1 Mar 2023 03:17:15 -0500
Subject: [PATCH 1/2] feat: for file and directory iterators expose CIDs

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

diff --git a/file/unixfile.go b/file/unixfile.go
index 82ee20a4d..b68492766 100644
--- a/file/unixfile.go
+++ b/file/unixfile.go
@@ -3,6 +3,7 @@ package unixfile
 import (
 	"context"
 	"errors"
+	"github.com/ipfs/go-cid"
 
 	ft "github.com/ipfs/go-unixfs"
 	uio "github.com/ipfs/go-unixfs/io"
@@ -122,14 +123,27 @@ func (d *ufsDirectory) Size() (int64, error) {
 	return d.size, nil
 }
 
+func (d *ufsDirectory) Cid() cid.Cid {
+	nd, err := d.dir.GetNode()
+	if err != nil {
+		return cid.Undef
+	}
+	return nd.Cid()
+}
+
 type ufsFile struct {
 	uio.DagReader
+	nd ipld.Node
 }
 
 func (f *ufsFile) Size() (int64, error) {
 	return int64(f.DagReader.Size()), nil
 }
 
+func (f *ufsFile) Cid() cid.Cid {
+	return f.nd.Cid()
+}
+
 func newUnixfsDir(ctx context.Context, dserv ipld.DAGService, nd *dag.ProtoNode) (files.Directory, error) {
 	dir, err := uio.NewDirectoryFromNode(dserv, nd)
 	if err != nil {
@@ -176,6 +190,7 @@ func NewUnixfsFile(ctx context.Context, dserv ipld.DAGService, nd ipld.Node) (fi
 
 	return &ufsFile{
 		DagReader: dr,
+		nd:        nd,
 	}, nil
 }
 

From 2acd046af3c685849ba3b0ce349a77907a917064 Mon Sep 17 00:00:00 2001
From: Adin Schmahmann <adin.schmahmann@gmail.com>
Date: Wed, 1 Mar 2023 03:26:57 -0500
Subject: [PATCH 2/2] add symlink wrapper for CID metadata

---
 file/unixfile.go | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/file/unixfile.go b/file/unixfile.go
index b68492766..177a1fa71 100644
--- a/file/unixfile.go
+++ b/file/unixfile.go
@@ -144,6 +144,15 @@ func (f *ufsFile) Cid() cid.Cid {
 	return f.nd.Cid()
 }
 
+type ufsSymLink struct {
+	files.File
+	nd ipld.Node
+}
+
+func (s *ufsSymLink) Cid() cid.Cid {
+	return s.nd.Cid()
+}
+
 func newUnixfsDir(ctx context.Context, dserv ipld.DAGService, nd *dag.ProtoNode) (files.Directory, error) {
 	dir, err := uio.NewDirectoryFromNode(dserv, nd)
 	if err != nil {
@@ -175,7 +184,7 @@ func NewUnixfsFile(ctx context.Context, dserv ipld.DAGService, nd ipld.Node) (fi
 			return newUnixfsDir(ctx, dserv, dn)
 		}
 		if fsn.Type() == ft.TSymlink {
-			return files.NewLinkFile(string(fsn.Data()), nil), nil
+			return &ufsSymLink{File: files.NewLinkFile(string(fsn.Data()), nil), nd: nd}, nil
 		}
 
 	case *dag.RawNode: