refactor: make seeds singular

main.go

@@ -90,16 +90,16 @@ Generate an identity seed and launch a gateway:
 			Usage:   "Index to derivate the peerID (needs --seed)",
 		},
 		&cli.BoolFlag{
-			Name:    "seeds-peering",
+			Name:    "seed-peering",
 			Value:   false,
-			EnvVars: []string{"RAINBOW_SEEDS_PEERING"},
-			Usage:   "TODO (needs --seed and --seed-index). Automatically enables --dht-shared-host, incompatible with --routing",
+			EnvVars: []string{"RAINBOW_SEED_PEERING"},
+			Usage:   "Automatic peering with peers with the same seed (requires --seed and --seed-index). Automatically enables --dht-routing and --dht-shared-host",
 		},
 		&cli.UintFlag{
-			Name:    "seeds-peering-max-index",
+			Name:    "seed-peering-max-index",
 			Value:   100,
-			EnvVars: []string{"RAINBOW_SEEDS_PEERING_MAX_INDEX"},
-			Usage:   "TODO",
+			EnvVars: []string{"RAINBOW_SEED_PEERING_MAX_INDEX"},
+			Usage:   "Largest index to derive automatic peering peer IDs for",
 		},
 		&cli.StringSliceFlag{
 			Name:    "gateway-domains",
@@ -312,9 +312,9 @@ share the same seed as long as the indexes are different.
 			peeringAddrs = append(peeringAddrs, *ai)
 		}
 
-		if cctx.Bool("seeds-peering") {
+		if cctx.Bool("seed-peering") {
 			if !cctx.IsSet("seed") || !cctx.IsSet("seed-index") {
-				return errors.New("--seed and --seed-index must be explicitly defined when --seeds-peering is enabled")
+				return errors.New("--seed and --seed-index must be explicitly defined when --seed-peering is enabled")
 			}
 
 			if cctx.String("dht-routing") == "off" {
@@ -330,7 +330,7 @@ share the same seed as long as the indexes are different.
 				return err
 			}
 
-			maxIndex := cctx.Uint("seeds-peering-max-index")
+			maxIndex := cctx.Uint("seed-peering-max-index")
 			peeringIDs, err := derivePeerIDs(seed, index, int(maxIndex))
 			if err != nil {
 				return err