fix persist tool

nimbus/config.nim

@@ -222,7 +222,7 @@ proc processList(v: string, o: var seq[string]) =
       if len(n) > 0:
         o.add(n)
 
-proc processInteger(v: string, o: var int): ConfigStatus =
+proc processInteger*(v: string, o: var int): ConfigStatus =
   ## Convert string to integer.
   try:
     o  = parseInt(v)
@@ -512,6 +512,14 @@ template checkArgument(a, b, c, e: untyped) =
     result = res
     break
 
+proc getDefaultDataDir*(): string =
+  when defined(windows):
+    "AppData" / "Roaming" / "Nimbus" / "DB"
+  elif defined(macosx):
+    "Library" / "Application Support" / "Nimbus" / "DB"
+  else:
+    ".cache" / "nimbus" / "db"
+
 proc initConfiguration(): NimbusConfiguration =
   ## Allocates and initializes `NimbusConfiguration` with default values
   result = new NimbusConfiguration
@@ -527,12 +535,7 @@ proc initConfiguration(): NimbusConfiguration =
   result.net.discPort = 30303'u16
   result.net.ident = NimbusIdent
 
-  const dataDir = when defined(windows):
-                    "AppData" / "Roaming" / "Nimbus" / "DB"
-                  elif defined(macosx):
-                    "Library" / "Application Support" / "Nimbus" / "DB"
-                  else:
-                    ".cache" / "nimbus" / "db"
+  const dataDir = getDefaultDataDir()
 
   result.dataDir = getHomeDir() / dataDir
   result.prune = PruneMode.Full

premix/persist.nim

@@ -2,12 +2,12 @@
 
 import
   eth_common, stint, byteutils, nimcrypto,
-  chronicles, rlp, downloader
+  chronicles, rlp, downloader, configuration
 
 import
   eth_trie/[hexary, db, defs],
   ../nimbus/db/[storage_types, db_chain, select_backend],
-  ../nimbus/[genesis, utils, config],
+  ../nimbus/[genesis, utils],
   ../nimbus/p2p/chain
 
 const
@@ -39,8 +39,9 @@ proc main() =
   let chainDB = newBaseChainDB(trieDB, false)
 
   # move head to block number ...
-  #var parentBlock = requestBlock(49438.u256)
-  #chainDB.setHead(parentBlock.header)
+  if conf.head != 0.u256:
+    var parentBlock = requestBlock(conf.head)
+    chainDB.setHead(parentBlock.header)
 
   if canonicalHeadHashKey().toOpenArray notin trieDB:
     persistToDb(db):
@@ -51,16 +52,16 @@ proc main() =
   var blockNumber = head.blockNumber + 1
   var chain = newChain(chainDB)
 
-  const
-    numBlocksToCommit = 128
-    numBlocksToDownload = 20000
+  let numBlocksToCommit = conf.numCommits
 
   var headers = newSeqOfCap[BlockHeader](numBlocksToCommit)
   var bodies  = newSeqOfCap[BlockBody](numBlocksToCommit)
   var one     = 1.u256
 
   var numBlocks = 0
-  for _ in 0 ..< numBlocksToDownload:
+  var counter = 0
+
+  while true:
     info "REQUEST HEADER", blockNumber=blockNumber
     var thisBlock = requestBlock(blockNumber)
 
@@ -71,13 +72,30 @@ proc main() =
 
     if numBlocks == numBlocksToCommit:
       persistToDb(db):
-        discard chain.persistBlocks(headers, bodies)
+        if chain.persistBlocks(headers, bodies) != ValidationResult.OK:
+          break
       numBlocks = 0
       headers.setLen(0)
       bodies.setLen(0)
 
+    inc counter
+    if conf.maxBlocks != 0 and counter >= conf.maxBlocks:
+      break
+
   if numBlocks > 0:
     persistToDb(db):
       discard chain.persistBlocks(headers, bodies)
 
-main()
+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)
+
+  main()