adds peerdas-supernode flag (#6764)

* adds peerdas-supernode flag instead of launching a peerdas supernode in subscribeAllSubnets

* make the flag default and _hidden_

* fix indentation

Author: agnxsh

beacon_chain/conf.nim

@@ -253,6 +253,12 @@ type
       desc: "Subscribe to all subnet topics when gossiping"
       name: "subscribe-all-subnets" .}: bool
 
+    peerdasSupernode* {.
+      hidden
+      defaultValue: false,
+      desc: "Subscribe to all column subnets, thereby becoming a peerdas supernode"
+      name: "debug-peerdas-supernode" .}: bool
+
     slashingDbKind* {.
       hidden
       defaultValue: SlashingDbKind.v2

beacon_chain/nimbus_beacon_node.nim

@@ -416,7 +416,7 @@ proc initFullNode(
       onElectraAttesterSlashingAdded))
     blobQuarantine = newClone(BlobQuarantine.init(onBlobSidecarAdded))
     dataColumnQuarantine = newClone(DataColumnQuarantine.init())
-    supernode = node.config.subscribeAllSubnets
+    supernode = node.config.peerdasSupernode
     localCustodySubnets =
       if supernode:
         DATA_COLUMN_SIDECAR_SUBNET_COUNT.uint64
@@ -564,7 +564,7 @@ proc initFullNode(
     node.network.nodeId.get_custody_columns(max(SAMPLES_PER_SLOT.uint64,
                                                 localCustodySubnets))
 
-  if node.config.subscribeAllSubnets:
+  if node.config.peerdasSupernode:
     node.network.loadCscnetMetadataAndEnr(DATA_COLUMN_SIDECAR_SUBNET_COUNT.uint8)
   else:
     node.network.loadCscnetMetadataAndEnr(CUSTODY_REQUIREMENT.uint8)

beacon_chain/spec/eip7594_helpers.nim

@@ -24,9 +24,9 @@ type
   CellBytes = array[fulu.CELLS_PER_EXT_BLOB, Cell]
   ProofBytes = array[fulu.CELLS_PER_EXT_BLOB, KzgProof]
 
-func sortedColumnIndices*(columnsPerSubnet: ColumnIndex,
-                          subnetIds: HashSet[uint64]):
-                          seq[ColumnIndex] =
+func sortedColumnIndices(columnsPerSubnet: ColumnIndex,
+                         subnetIds: HashSet[uint64]):
+                         seq[ColumnIndex] =
   var res: seq[ColumnIndex] = @[]
   for i in 0'u64 ..< columnsPerSubnet:
     for subnetId in subnetIds:
@@ -35,9 +35,9 @@ func sortedColumnIndices*(columnsPerSubnet: ColumnIndex,
   res.sort
   res
 
-func sortedColumnIndexList*(columnsPerSubnet: ColumnIndex,
-                            subnetIds: HashSet[uint64]):
-                            List[ColumnIndex, NUMBER_OF_COLUMNS] =
+func sortedColumnIndexList(columnsPerSubnet: ColumnIndex,
+                           subnetIds: HashSet[uint64]):
+                           List[ColumnIndex, NUMBER_OF_COLUMNS] =
   var
     res: seq[ColumnIndex]
   for i in 0'u64 ..< columnsPerSubnet:

beacon_chain/spec/helpers.nim

@@ -10,7 +10,6 @@
 # Uncategorized helper functions from the spec
 
 import
-  std/sequtils,
   # Status libraries
   stew/[byteutils, endians2, objects],
   nimcrypto/sha2,
@@ -543,6 +542,7 @@ proc compute_execution_block_hash*(blck: ForkyBeaconBlock): Eth2Digest =
   rlpHash(blockToBlockHeader(blck)).to(Eth2Digest)
 
 from std/math import exp, ln
+from std/sequtils import foldl
 
 func ln_binomial(n, k: int): float64 =
   if k > n: