docs(tvix/store/protos): explain a bit more what we're doing r/6782

Explain a bit better what we do in the codeblock below,
and add a newline to make it clear we don't just document the first
branch.

Change-Id: Ifb142d9984e6d2cbca648525c10298f2fcbdfedf
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9645
Tested-by: BuildkiteCI
Reviewed-by: Brian McGee <brian@bmcgee.ie>
Autosubmit: flokli <flokli@flokli.de>

1 files changed, 3 insertions, 1 deletions

diff --git a/tvix/store/protos/pathinfo.go b/tvix/store/protos/pathinfo.go
index 6607b5c879..595a1b4fab 100644
--- a/tvix/store/protos/pathinfo.go
+++ b/tvix/store/protos/pathinfo.go
@@ -51,7 +51,9 @@ func (p *PathInfo) Validate() (*storepath.StorePath, error) {
 		return nil, fmt.Errorf("root node must be set")
 	}
 
-	// ensure it properly parses to a store path, and in case it refers to a digest, ensure it has the right length.
+	// for all three node types, ensure the name properly parses to a store path,
+	// and in case it refers to a digest, ensure it has the right length.
+
 	if node := rootNode.GetDirectory(); node != nil {
 		if len(node.Digest) != 32 {
 			return nil, fmt.Errorf("invalid digest size for %s, expected %d, got %d", node.Name, 32, len(node.Digest))