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package commands |
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import ( |
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"fmt" |
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"os" |
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"time" |
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"github.com/spf13/cobra" |
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cfg "github.com/tendermint/tendermint/config" |
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"github.com/tendermint/tendermint/node" |
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"github.com/tendermint/tendermint/proxy" |
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"github.com/tendermint/tendermint/types" |
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cmn "github.com/tendermint/tmlibs/common" |
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"github.com/tendermint/tmlibs/log" |
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) |
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var ( |
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config = cfg.DefaultConfig() |
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logger = log.NewTMLogger(log.NewSyncWriter(os.Stdout)).With("module", "main") |
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) |
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var RunNodeCmd = &cobra.Command{ |
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Use: "node", |
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Short: "Run the tendermint node", |
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RunE: runNode, |
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} |
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func init() { |
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AddNodeFlags(RunNodeCmd) |
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} |
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// AddNodeFlags exposes some common configuration options on the command-line
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// These are exposed for convenience of commands embedding a tendermint node
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func AddNodeFlags(cmd *cobra.Command) { |
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// bind flags
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cmd.Flags().String("moniker", config.Moniker, "Node Name") |
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// node flags
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cmd.Flags().Bool("fast_sync", config.FastSync, "Fast blockchain syncing") |
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// abci flags
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cmd.Flags().String("proxy_app", config.ProxyApp, "Proxy app address, or 'nilapp' or 'dummy' for local testing.") |
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cmd.Flags().String("abci", config.ABCI, "Specify abci transport (socket | grpc)") |
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// rpc flags
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cmd.Flags().String("rpc.laddr", config.RPC.ListenAddress, "RPC listen address. Port required") |
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cmd.Flags().String("rpc.grpc_laddr", config.RPC.GRPCListenAddress, "GRPC listen address (BroadcastTx only). Port required") |
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cmd.Flags().Bool("rpc.unsafe", config.RPC.Unsafe, "Enabled unsafe rpc methods") |
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// p2p flags
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cmd.Flags().String("p2p.laddr", config.P2P.ListenAddress, "Node listen address. (0.0.0.0:0 means any interface, any port)") |
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cmd.Flags().String("p2p.seeds", config.P2P.Seeds, "Comma delimited host:port seed nodes") |
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cmd.Flags().Bool("p2p.skip_upnp", config.P2P.SkipUPNP, "Skip UPNP configuration") |
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cmd.Flags().Bool("p2p.pex", config.P2P.PexReactor, "Enable Peer-Exchange (dev feature)") |
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// consensus flags
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cmd.Flags().Bool("consensus.create_empty_blocks", config.Consensus.CreateEmptyBlocks, "Set this to false to only produce blocks when there are txs or when the AppHash changes") |
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} |
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// Users wishing to:
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// * Use an external signer for their validators
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// * Supply an in-proc abci app
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// should import github.com/tendermint/tendermint/node and implement
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// their own run_node to call node.NewNode (instead of node.NewNodeDefault)
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// with their custom priv validator and/or custom proxy.ClientCreator
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func runNode(cmd *cobra.Command, args []string) error { |
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// Wait until the genesis doc becomes available
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// This is for Mintnet compatibility.
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// TODO: If Mintnet gets deprecated or genesis_file is
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// always available, remove.
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genDocFile := config.GenesisFile() |
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for !cmn.FileExists(genDocFile) { |
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logger.Info(cmn.Fmt("Waiting for genesis file %v...", genDocFile)) |
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time.Sleep(time.Second) |
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} |
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genDoc, err := types.GenesisDocFromFile(genDocFile) |
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if err != nil { |
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return err |
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} |
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config.ChainID = genDoc.ChainID |
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// Create & start node
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// n := node.NewNodeDefault(config, logger.With("module", "node"))
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// TODO: Make types.PrivValidator an interface so that it can be provided
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// by a hardware wallet or any other wallet provider.
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// The next two lines show how a private validator is setup.
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privValidator := types.LoadOrGenPrivValidator(config.PrivValidatorFile(), logger) |
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privValidator.SetSigner(types.NewDefaultSigner(privValidator.PrivKey)) |
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n := node.NewNode(config, privValidator, proxy.DefaultClientCreator(config.ProxyApp, config.ABCI, config.DBDir()), logger) |
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if _, err := n.Start(); err != nil { |
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return fmt.Errorf("Failed to start node: %v", err) |
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} else { |
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logger.Info("Started node", "nodeInfo", n.Switch().NodeInfo()) |
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} |
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// Trap signal, run forever.
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n.RunForever() |
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return nil |
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} |
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