move ipld/unixfs from gogo protobuf

CHANGELOG.md

@@ -20,6 +20,8 @@ The following emojis are used to highlight certain changes:
 
 ### Changed
 
+- upgrade to `go-libp2p` [v0.39.0](https://github.com/libp2p/go-libp2p/releases/tag/v0.39.0)
+- move `ipld/unixfs` from gogo protobuf [#840](https://github.com/ipfs/boxo/pull/840)
 - `provider`: Prevent multiple instances of reprovider.Reprovide() from running at the same time. [#834](https://github.com/ipfs/boxo/pull/834)
 - upgrade to `go-libp2p` [v0.39.1](https://github.com/libp2p/go-libp2p/releases/tag/v0.39.1)
 - upgrade to `go-libp2p-kad-dht` [v0.29.0](github.com/libp2p/go-libp2p-kad-dht v0.29.0)

ipld/unixfs/pb/gen.go

@@ -0,0 +1,20 @@
+// These commands work around namespace conflicts that occur when multiple
+// repositories depend on .proto files with generic filenames. Due to the way
+// protobuf registers files (e.g., foo.proto or pb/foo.proto), naming
+// collisions can occur when the same filename is used across different
+// packages.
+//
+// The only way to generate a *.pb.go file that includes the full package path
+// (e.g., github.com/org/repo/pb/foo.proto) is to place the .proto file in a
+// directory structure that mirrors its package path.
+//
+// References:
+//   - https://protobuf.dev/reference/go/faq#namespace-conflict
+//   - https://github.com/golang/protobuf/issues/1122#issuecomment-2045945265
+//
+//go:generate mkdir -p github.com/ipfs/boxo/ipld/unixfs/pb
+//go:generate ln -f unixfs.proto github.com/ipfs/boxo/ipld/unixfs/pb/
+//go:generate protoc --go_out=. github.com/ipfs/boxo/ipld/unixfs/pb/unixfs.proto
+//go:generate mv -f github.com/ipfs/boxo/ipld/unixfs/pb/unixfs.pb.go .
+//go:generate rm -rf github.com
+package pb