das/share: Change log from DAH.Hash() to DAH.String() (#1971)

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## Overview

Changes log input to use the string method for both the
DataAvailabilityHeader and Root.

Fixes #1898

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- [x] Linked issues closed with keywords

das/worker.go

@@ -112,7 +112,7 @@ func (w *worker) sample(ctx context.Context, timeout time.Duration, height uint6
 				"height", h.Height(),
 				"hash", h.Hash(),
 				"square width", len(h.DAH.RowsRoots),
-				"data root", h.DAH.Hash(),
+				"data root", h.DAH.String(),
 				"err", err,
 				"finished (s)", time.Since(start),
 			)
@@ -125,7 +125,7 @@ func (w *worker) sample(ctx context.Context, timeout time.Duration, height uint6
 		"height", h.Height(),
 		"hash", h.Hash(),
 		"square width", len(h.DAH.RowsRoots),
-		"data root", h.DAH.Hash(),
+		"data root", h.DAH.String(),
 		"finished (s)", time.Since(start),
 	)
 
@@ -166,7 +166,7 @@ func (w *worker) getHeader(ctx context.Context, height uint64) (*header.Extended
 		"height", h.Height(),
 		"hash", h.Hash(),
 		"square width", len(h.DAH.RowsRoots),
-		"data root", h.DAH.Hash(),
+		"data root", h.DAH.String(),
 		"finished (s)", time.Since(start),
 	)
 	return h, nil

share/availability/full/availability.go

@@ -68,7 +68,7 @@ func (fa *ShareAvailability) SharesAvailable(ctx context.Context, root *share.Ro
 
 	_, err := fa.getter.GetEDS(ctx, root)
 	if err != nil {
-		log.Errorw("availability validation failed", "root", root.Hash(), "err", err.Error())
+		log.Errorw("availability validation failed", "root", root.String(), "err", err.Error())
 		var byzantineErr *byzantine.ErrByzantine
 		if ipldFormat.IsNotFound(err) || errors.Is(err, context.DeadlineExceeded) && !errors.As(err, &byzantineErr) {
 			return share.ErrNotAvailable

share/availability/light/availability.go

@@ -30,7 +30,7 @@ func NewShareAvailability(getter share.Getter) *ShareAvailability {
 // SharesAvailable randomly samples DefaultSampleAmount amount of Shares committed to the given
 // Root. This way SharesAvailable subjectively verifies that Shares are available.
 func (la *ShareAvailability) SharesAvailable(ctx context.Context, dah *share.Root) error {
-	log.Debugw("Validate availability", "root", dah.Hash())
+	log.Debugw("Validate availability", "root", dah.String())
 	// We assume the caller of this method has already performed basic validation on the
 	// given dah/root. If for some reason this has not happened, the node should panic.
 	if err := dah.ValidateBasic(); err != nil {
@@ -47,14 +47,14 @@ func (la *ShareAvailability) SharesAvailable(ctx context.Context, dah *share.Roo
 	// functionality is optional and must be supported by the used share.Getter.
 	ctx = getters.WithSession(ctx)
 
-	log.Debugw("starting sampling session", "root", dah.Hash())
+	log.Debugw("starting sampling session", "root", dah.String())
 	errs := make(chan error, len(samples))
 	for _, s := range samples {
 		go func(s Sample) {
-			log.Debugw("fetching share", "root", dah.Hash(), "row", s.Row, "col", s.Col)
+			log.Debugw("fetching share", "root", dah.String(), "row", s.Row, "col", s.Col)
 			_, err := la.getter.GetShare(ctx, dah, s.Row, s.Col)
 			if err != nil {
-				log.Debugw("error fetching share", "root", dah.Hash(), "row", s.Row, "col", s.Col)
+				log.Debugw("error fetching share", "root", dah.String(), "row", s.Row, "col", s.Col)
 			}
 			// we don't really care about Share bodies at this point
 			// it also means we now saved the Share in local storage
@@ -75,7 +75,7 @@ func (la *ShareAvailability) SharesAvailable(ctx context.Context, dah *share.Roo
 
 		if err != nil {
 			if !errors.Is(err, context.Canceled) {
-				log.Errorw("availability validation failed", "root", dah.Hash(), "err", err.Error())
+				log.Errorw("availability validation failed", "root", dah.String(), "err", err.Error())
 			}
 			if ipldFormat.IsNotFound(err) || errors.Is(err, context.DeadlineExceeded) {
 				return share.ErrNotAvailable

share/eds/retriever.go

@@ -2,7 +2,6 @@ package eds
 
 import (
 	"context"
-	"encoding/hex"
 	"errors"
 	"sync"
 	"sync/atomic"
@@ -65,10 +64,10 @@ func (r *Retriever) Retrieve(ctx context.Context, dah *da.DataAvailabilityHeader
 	defer span.End()
 	span.SetAttributes(
 		attribute.Int("size", len(dah.RowsRoots)),
-		attribute.String("data_hash", hex.EncodeToString(dah.Hash())),
+		attribute.String("data_hash", dah.String()),
 	)
 
-	log.Debugw("retrieving data square", "data_hash", hex.EncodeToString(dah.Hash()), "size", len(dah.RowsRoots))
+	log.Debugw("retrieving data square", "data_hash", dah.String(), "size", len(dah.RowsRoots))
 	ses, err := r.newSession(ctx, dah)
 	if err != nil {
 		return nil, err
@@ -175,7 +174,7 @@ func (rs *retrievalSession) Reconstruct(ctx context.Context) (*rsmt2d.ExtendedDa
 		span.RecordError(err)
 		return nil, err
 	}
-	log.Infow("data square reconstructed", "data_hash", hex.EncodeToString(rs.dah.Hash()), "size", len(rs.dah.RowsRoots))
+	log.Infow("data square reconstructed", "data_hash", rs.dah.String(), "size", len(rs.dah.RowsRoots))
 	close(rs.squareDn)
 	return rs.square, nil
 }