add dumper tool

nimbus/tracer.nim

@@ -240,20 +240,14 @@ proc dumpDebuggingMetaData*(chainDB: BaseChainDB, header: BlockHeader, blockBody
     captureTrieDB = trieDB captureDB
     captureChainDB = newBaseChainDB(captureTrieDB, false)
 
-  let
-    txTraces = traceTransactions(captureChainDB, header, blockBody)
-    stateDump = dumpBlockState(captureChainDB, header, blockBody)
-    blockTrace = traceBlock(captureChainDB, header, blockBody, {DisableState})
-    receipts = toJson(receipts)
-
   var metaData = %{
     "blockNumber": %blockNumber.toHex,
-    "txTraces": txTraces,
-    "stateDump": stateDump,
-    "blockTrace": blockTrace,
-    "receipts": receipts
+    "txTraces": traceTransactions(captureChainDB, header, blockBody),
+    "stateDump": dumpBlockState(captureChainDB, header, blockBody),
+    "blockTrace": traceBlock(captureChainDB, header, blockBody, {DisableState}),
+    "receipts": toJson(receipts)
   }
 
   metaData.dumpMemoryDB(memoryDB)
   # this is a placeholder until premix debugging tool is ready
-  writeFile("debug_meta_data.json", metaData.pretty())
+  writeFile("debug" & $blockNumber & ".json", metaData.pretty())

premix/dumper.nim

@@ -0,0 +1,55 @@
+#
+# helper tool to dump debugging data for persisted block
+# usage: dumper [--datadir:your_path] --head:blockNumber
+#
+
+import
+  configuration, stint, eth_common,
+  ../nimbus/db/[storage_types, db_chain, select_backend, capturedb],
+  eth_trie/[hexary, db, defs], ../nimbus/p2p/executor,
+  ../nimbus/[tracer, vm_state]
+
+proc dumpDebug(chainDB: BaseChainDB, blockNumber: Uint256) =
+  var
+    memoryDB = newMemoryDB()
+    captureDB = newCaptureDB(chainDB.db, memoryDB)
+    captureTrieDB = trieDB captureDB
+    captureChainDB = newBaseChainDB(captureTrieDB, false)
+
+  let
+    parentNumber = blockNumber - 1
+    parent = captureChainDB.getBlockHeader(parentNumber)
+    header = captureChainDB.getBlockHeader(blockNumber)
+    headerHash = header.blockHash
+    body = captureChainDB.getBlockBody(headerHash)
+    vmState = newBaseVMState(parent, captureChainDB)
+
+  captureChainDB.setHead(parent, true)
+  let validationResult = processBlock(captureChainDB, parent, header, body, vmState)
+  dumpDebuggingMetaData(captureChainDB, header, body, vmState.receipts)
+
+proc main() =
+  let conf = getConfiguration()
+  let db = newChainDb(conf.dataDir)
+  let trieDB = trieDB db
+  let chainDB = newBaseChainDB(trieDB, false)
+
+  if conf.head != 0.u256:
+    dumpDebug(chainDB, conf.head)
+
+when isMainModule:
+  var message: string
+
+  ## Processing command line arguments
+  if processArguments(message) != Success:
+    echo message
+    quit(QuitFailure)
+  else:
+    if len(message) > 0:
+      echo message
+      quit(QuitSuccess)
+
+  try:
+    main()
+  except:
+    echo getCurrentExceptionMsg()

premix/persist.nim

@@ -34,7 +34,7 @@ proc main() =
   # 52029 first block with receipts logs
   # 66407 failed transaction
 
-  var conf = getConfiguration()
+  let conf = getConfiguration()
   let db = newChainDb(conf.dataDir)
   let trieDB = trieDB db
   let chainDB = newBaseChainDB(trieDB, false)

premix/premix.nim

@@ -67,7 +67,7 @@ proc requestPostState(thisBlock: Block): JsonNode =
 proc copyAccount(acc: JsonNode): JsonNode =
   result = newJObject()
   result["balance"] = newJString(acc["balance"].getStr)
-  result["nonce"] = newJString(acc["nonce"].getStr)
+  result["nonce"] = newJString(toHex(acc["nonce"].getInt))
   result["code"] = newJString(acc["code"].getStr)
   var storage = newJObject()
   for k, v in acc["storage"]:
@@ -76,7 +76,7 @@ proc copyAccount(acc: JsonNode): JsonNode =
 
 proc updateAccount(a, b: JsonNode) =
   a["balance"] = newJString(b["balance"].getStr)
-  a["nonce"] = newJString(b["nonce"].getStr)
+  a["nonce"] = newJString(toHex(b["nonce"].getInt))
   a["code"] = newJString(b["code"].getStr)
   var storage = a["storage"]
   for k, v in b["storage"]:
@@ -133,7 +133,7 @@ Happy bug hunting
 
 proc main() =
   if paramCount() == 0:
-    echo "usage: premix debug_meta_data.json"
+    echo "usage: premix debugxxx.json"
     quit(QuitFailure)
 
   try: