fix(share/pruner) enable Light node pruner service (#3455)

Fixes 2 issues that prevented Light pruner service from launching:
- pruning flag was not parsed by Light node
- Pruner service was not provided to Light node

cmd/util.go

@@ -119,20 +119,14 @@ func PersistentPreRunEnv(cmd *cobra.Command, nodeType node.Type, _ []string) err
 	rpc_cfg.ParseFlags(cmd, &cfg.RPC)
 	gateway.ParseFlags(cmd, &cfg.Gateway)
 
+	pruner.ParseFlags(cmd, &cfg.Pruner)
 	switch nodeType {
-	case node.Light:
+	case node.Light, node.Full:
 		err = header.ParseFlags(cmd, &cfg.Header)
 		if err != nil {
 			return err
 		}
-	case node.Full:
-		err = header.ParseFlags(cmd, &cfg.Header)
-		if err != nil {
-			return err
-		}
-		pruner.ParseFlags(cmd, &cfg.Pruner)
 	case node.Bridge:
-		pruner.ParseFlags(cmd, &cfg.Pruner)
 	default:
 		panic(fmt.Sprintf("invalid node type: %v", nodeType))
 	}

nodebuilder/pruner/module.go

@@ -6,12 +6,12 @@ import (
 	"go.uber.org/fx"
 
 	"github.com/celestiaorg/celestia-node/core"
+	"github.com/celestiaorg/celestia-node/libs/fxutil"
 	"github.com/celestiaorg/celestia-node/nodebuilder/node"
 	"github.com/celestiaorg/celestia-node/pruner"
 	"github.com/celestiaorg/celestia-node/pruner/archival"
 	"github.com/celestiaorg/celestia-node/pruner/full"
 	"github.com/celestiaorg/celestia-node/pruner/light"
-	"github.com/celestiaorg/celestia-node/share/eds"
 )
 
 func ConstructModule(tp node.Type, cfg *Config) fx.Option {
@@ -20,8 +20,7 @@ func ConstructModule(tp node.Type, cfg *Config) fx.Option {
 		availWindow(tp, cfg.EnableService),
 	)
 
-	fullAndBridgeComponents := fx.Options(
-		baseComponents,
+	prunerService := fx.Options(
 		fx.Provide(fx.Annotate(
 			newPrunerService,
 			fx.OnStart(func(ctx context.Context, p *pruner.Service) error {
@@ -34,31 +33,35 @@ func ConstructModule(tp node.Type, cfg *Config) fx.Option {
 		// This is necessary to invoke the pruner service as independent thanks to a
 		// quirk in FX.
 		fx.Invoke(func(_ *pruner.Service) {}),
-		fx.Provide(func(store *eds.Store) pruner.Pruner {
-			return full.NewPruner(store)
-		}),
 	)
 
 	switch tp {
-	// TODO: Eventually, light nodes will be capable of pruning samples
-	//  in which case, this can be enabled.
 	case node.Light:
+		if cfg.EnableService {
+			return fx.Module("prune",
+				baseComponents,
+				prunerService,
+				fx.Provide(light.NewPruner),
+			)
+		}
 		return fx.Module("prune",
 			baseComponents,
-			fx.Provide(light.NewPruner),
 		)
 	case node.Full:
-		opts := baseComponents
 		if cfg.EnableService {
-			opts = fullAndBridgeComponents
+			return fx.Module("prune",
+				baseComponents,
+				prunerService,
+				fxutil.ProvideAs(full.NewPruner, new(pruner.Pruner)),
+			)
 		}
-		return fx.Module("prune",
-			opts,
-		)
+		return fx.Module("prune", baseComponents)
 	case node.Bridge:
 		if cfg.EnableService {
 			return fx.Module("prune",
-				fullAndBridgeComponents,
+				baseComponents,
+				prunerService,
+				fxutil.ProvideAs(full.NewPruner, new(pruner.Pruner)),
 				fx.Provide(func(window pruner.AvailabilityWindow) []core.Option {
 					return []core.Option{core.WithAvailabilityWindow(window)}
 				}),