Move downloader config after bor (#13374)

This fixes `no metadata` in the downloader becuase checkpoints and
milestones are only optionally included at the moment.

If the downloader config is initiated before the bor flags have run the
optional files will be exluded from the downloading whitelist and
therefore ignore.

cmd/utils/flags.go

@@ -1888,37 +1888,6 @@ func SetEthConfig(ctx *cli.Context, nodeConfig *nodecfg.Config, cfg *ethconfig.C
 	cfg.Snapshot.Verify = ctx.Bool(DownloaderVerifyFlag.Name)
 	cfg.Snapshot.DownloaderAddr = strings.TrimSpace(ctx.String(DownloaderAddrFlag.Name))
 	cfg.Snapshot.ChainName = chain
-	if cfg.Snapshot.DownloaderAddr == "" {
-		downloadRateStr := ctx.String(TorrentDownloadRateFlag.Name)
-		uploadRateStr := ctx.String(TorrentUploadRateFlag.Name)
-		var downloadRate, uploadRate datasize.ByteSize
-		if err := downloadRate.UnmarshalText([]byte(downloadRateStr)); err != nil {
-			panic(err)
-		}
-		if err := uploadRate.UnmarshalText([]byte(uploadRateStr)); err != nil {
-			panic(err)
-		}
-		lvl, _, err := downloadercfg2.Int2LogLevel(ctx.Int(TorrentVerbosityFlag.Name))
-		if err != nil {
-			panic(err)
-		}
-		logger.Info("torrent verbosity", "level", lvl.LogString())
-		version := "erigon: " + params.VersionWithCommit(params.GitCommit)
-		webseedsList := libcommon.CliString2Array(ctx.String(WebSeedsFlag.Name))
-		if known, ok := snapcfg.KnownWebseeds[chain]; ok {
-			webseedsList = append(webseedsList, known...)
-		}
-		cfg.Downloader, err = downloadercfg2.New(ctx.Context, cfg.Dirs, version, lvl, downloadRate, uploadRate,
-			ctx.Int(TorrentPortFlag.Name), ctx.Int(TorrentConnsPerFileFlag.Name), ctx.Int(TorrentDownloadSlotsFlag.Name),
-			libcommon.CliString2Array(ctx.String(TorrentStaticPeersFlag.Name)),
-			webseedsList, chain, true, ctx.Bool(DbWriteMapFlag.Name),
-		)
-		if err != nil {
-			panic(err)
-		}
-		downloadernat.DoNat(nodeConfig.P2P.NAT, cfg.Downloader.ClientConfig, logger)
-	}
-
 	nodeConfig.Http.Snap = cfg.Snapshot
 
 	if ctx.Command.Name == "import" {
@@ -2009,6 +1978,39 @@ func SetEthConfig(ctx *cli.Context, nodeConfig *nodecfg.Config, cfg *ethconfig.C
 	if ctx.IsSet(TrustedSetupFile.Name) {
 		libkzg.SetTrustedSetupFilePath(ctx.String(TrustedSetupFile.Name))
 	}
+
+	// Do this after chain config as there are chain type registration
+	// dependencies for know config which need to be set-up
+	if cfg.Snapshot.DownloaderAddr == "" {
+		downloadRateStr := ctx.String(TorrentDownloadRateFlag.Name)
+		uploadRateStr := ctx.String(TorrentUploadRateFlag.Name)
+		var downloadRate, uploadRate datasize.ByteSize
+		if err := downloadRate.UnmarshalText([]byte(downloadRateStr)); err != nil {
+			panic(err)
+		}
+		if err := uploadRate.UnmarshalText([]byte(uploadRateStr)); err != nil {
+			panic(err)
+		}
+		lvl, _, err := downloadercfg2.Int2LogLevel(ctx.Int(TorrentVerbosityFlag.Name))
+		if err != nil {
+			panic(err)
+		}
+		logger.Info("torrent verbosity", "level", lvl.LogString())
+		version := "erigon: " + params.VersionWithCommit(params.GitCommit)
+		webseedsList := libcommon.CliString2Array(ctx.String(WebSeedsFlag.Name))
+		if known, ok := snapcfg.KnownWebseeds[chain]; ok {
+			webseedsList = append(webseedsList, known...)
+		}
+		cfg.Downloader, err = downloadercfg2.New(ctx.Context, cfg.Dirs, version, lvl, downloadRate, uploadRate,
+			ctx.Int(TorrentPortFlag.Name), ctx.Int(TorrentConnsPerFileFlag.Name), ctx.Int(TorrentDownloadSlotsFlag.Name),
+			libcommon.CliString2Array(ctx.String(TorrentStaticPeersFlag.Name)),
+			webseedsList, chain, true, ctx.Bool(DbWriteMapFlag.Name),
+		)
+		if err != nil {
+			panic(err)
+		}
+		downloadernat.DoNat(nodeConfig.P2P.NAT, cfg.Downloader.ClientConfig, logger)
+	}
 }
 
 // SetDNSDiscoveryDefaults configures DNS discovery with the given URL if