Prefer go generate to Makefile for code generation

Author: gammazero

ipns/pb/Makefile

@@ -0,0 +1,20 @@
+// This 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/ipns/pb
+//go:generate ln -f record.proto github.com/ipfs/boxo/ipns/pb/
+//go:generate protoc --go_out=. github.com/ipfs/boxo/ipns/pb/record.proto
+//go:generate mv github.com/ipfs/boxo/ipns/pb/record.pb.go .
+//go:generate rm -rf github.com
+package pb