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558 lines
13 KiB
558 lines
13 KiB
package main
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import (
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"bufio"
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"encoding/hex"
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"errors"
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"fmt"
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"io"
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"os"
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"os/exec"
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"strings"
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abcicli "github.com/tendermint/abci/client"
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"github.com/tendermint/abci/example/counter"
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"github.com/tendermint/abci/example/dummy"
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"github.com/tendermint/abci/server"
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"github.com/tendermint/abci/types"
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"github.com/tendermint/abci/version"
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cmn "github.com/tendermint/tmlibs/common"
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"github.com/tendermint/tmlibs/log"
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"github.com/spf13/cobra"
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)
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// Structure for data passed to print response.
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type response struct {
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// generic abci response
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Data []byte
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Code types.CodeType
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Log string
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Query *queryResponse
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}
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type queryResponse struct {
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Key []byte
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Value []byte
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Height uint64
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Proof []byte
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}
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// client is a global variable so it can be reused by the console
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var client abcicli.Client
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var logger log.Logger
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// flags
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var (
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// global
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address string
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abci string
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verbose bool
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// query
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path string
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height int
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prove bool
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// counter
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addrC string
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serial bool
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// dummy
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addrD string
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persist string
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)
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var RootCmd = &cobra.Command{
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Use: "abci-cli",
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Short: "",
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Long: "",
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PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
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switch cmd.Use {
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case "counter", "dummy": // for the examples apps, don't pre-run
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return nil
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case "version": // skip running for version command
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return nil
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}
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if logger == nil {
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logger = log.NewFilter(log.NewTMLogger(log.NewSyncWriter(os.Stdout)), log.AllowError())
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}
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if client == nil {
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var err error
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client, err = abcicli.NewClient(address, abci, false)
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if err != nil {
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return err
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}
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client.SetLogger(logger.With("module", "abci-client"))
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if _, err := client.Start(); err != nil {
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return err
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}
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}
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return nil
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},
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}
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func Execute() {
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addGlobalFlags()
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addCommands()
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RootCmd.Execute()
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}
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func addGlobalFlags() {
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RootCmd.PersistentFlags().StringVarP(&address, "address", "", "tcp://127.0.0.1:46658", "Address of application socket")
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RootCmd.PersistentFlags().StringVarP(&abci, "abci", "", "socket", "Either socket or grpc")
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RootCmd.PersistentFlags().BoolVarP(&verbose, "verbose", "v", false, "Print the command and results as if it were a console session")
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}
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func addQueryFlags() {
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queryCmd.PersistentFlags().StringVarP(&path, "path", "", "/store", "Path to prefix query with")
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queryCmd.PersistentFlags().IntVarP(&height, "height", "", 0, "Height to query the blockchain at")
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queryCmd.PersistentFlags().BoolVarP(&prove, "prove", "", false, "Whether or not to return a merkle proof of the query result")
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}
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func addCounterFlags() {
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counterCmd.PersistentFlags().StringVarP(&addrC, "addr", "", "tcp://0.0.0.0:46658", "Listen address")
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counterCmd.PersistentFlags().BoolVarP(&serial, "serial", "", false, "Enforce incrementing (serial) transactions")
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}
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func addDummyFlags() {
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dummyCmd.PersistentFlags().StringVarP(&addrD, "addr", "", "tcp://0.0.0.0:46658", "Listen address")
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dummyCmd.PersistentFlags().StringVarP(&persist, "persist", "", "", "Directory to use for a database")
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}
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func addCommands() {
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RootCmd.AddCommand(batchCmd)
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RootCmd.AddCommand(consoleCmd)
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RootCmd.AddCommand(echoCmd)
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RootCmd.AddCommand(infoCmd)
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RootCmd.AddCommand(setOptionCmd)
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RootCmd.AddCommand(deliverTxCmd)
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RootCmd.AddCommand(checkTxCmd)
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RootCmd.AddCommand(commitCmd)
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RootCmd.AddCommand(versionCmd)
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addQueryFlags()
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RootCmd.AddCommand(queryCmd)
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// examples
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addCounterFlags()
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RootCmd.AddCommand(counterCmd)
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addDummyFlags()
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RootCmd.AddCommand(dummyCmd)
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}
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var batchCmd = &cobra.Command{
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Use: "batch",
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Short: "Run a batch of abci commands against an application",
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Long: "",
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Args: cobra.ExactArgs(0),
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RunE: func(cmd *cobra.Command, args []string) error {
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return cmdBatch(cmd, args)
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},
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}
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var consoleCmd = &cobra.Command{
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Use: "console",
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Short: "Start an interactive abci console for multiple commands",
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Long: "",
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Args: cobra.ExactArgs(0),
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ValidArgs: []string{"batch", "echo", "info", "set_option", "deliver_tx", "check_tx", "commit", "query"},
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RunE: func(cmd *cobra.Command, args []string) error {
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return cmdConsole(cmd, args)
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},
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}
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var echoCmd = &cobra.Command{
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Use: "echo",
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Short: "Have the application echo a message",
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Long: "",
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Args: cobra.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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return cmdEcho(cmd, args)
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},
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}
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var infoCmd = &cobra.Command{
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Use: "info",
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Short: "Get some info about the application",
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Long: "",
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Args: cobra.ExactArgs(0),
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RunE: func(cmd *cobra.Command, args []string) error {
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return cmdInfo(cmd, args)
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},
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}
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var setOptionCmd = &cobra.Command{
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Use: "set_option",
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Short: "Set an option on the application",
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Long: "",
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Args: cobra.ExactArgs(2),
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RunE: func(cmd *cobra.Command, args []string) error {
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return cmdSetOption(cmd, args)
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},
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}
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var deliverTxCmd = &cobra.Command{
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Use: "deliver_tx",
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Short: "Deliver a new transaction to the application",
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Long: "",
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Args: cobra.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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return cmdDeliverTx(cmd, args)
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},
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}
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var checkTxCmd = &cobra.Command{
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Use: "check_tx",
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Short: "Validate a transaction",
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Long: "",
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Args: cobra.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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return cmdCheckTx(cmd, args)
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},
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}
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var commitCmd = &cobra.Command{
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Use: "commit",
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Short: "Commit the application state and return the Merkle root hash",
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Long: "",
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Args: cobra.ExactArgs(0),
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RunE: func(cmd *cobra.Command, args []string) error {
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return cmdCommit(cmd, args)
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},
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}
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var versionCmd = &cobra.Command{
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Use: "version",
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Short: "Print abci console version",
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Long: "",
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Args: cobra.ExactArgs(0),
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RunE: func(cmd *cobra.Command, args []string) error {
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fmt.Println(version.Version)
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return nil
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},
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}
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var queryCmd = &cobra.Command{
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Use: "query",
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Short: "Query the application state",
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Long: "",
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Args: cobra.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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return cmdQuery(cmd, args)
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},
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}
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var counterCmd = &cobra.Command{
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Use: "counter",
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Short: "ABCI demo example",
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Long: "",
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Args: cobra.ExactArgs(0),
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RunE: func(cmd *cobra.Command, args []string) error {
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return cmdCounter(cmd, args)
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},
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}
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var dummyCmd = &cobra.Command{
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Use: "dummy",
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Short: "ABCI demo example",
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Long: "",
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Args: cobra.ExactArgs(0),
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RunE: func(cmd *cobra.Command, args []string) error {
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return cmdDummy(cmd, args)
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},
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}
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// Generates new Args array based off of previous call args to maintain flag persistence
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func persistentArgs(line []byte) []string {
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// generate the arguments to run from original os.Args
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// to maintain flag arguments
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args := os.Args
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args = args[:len(args)-1] // remove the previous command argument
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if len(line) > 0 { // prevents introduction of extra space leading to argument parse errors
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args = append(args, strings.Split(string(line), " ")...)
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}
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return args
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}
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//--------------------------------------------------------------------------------
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func cmdBatch(cmd *cobra.Command, args []string) error {
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bufReader := bufio.NewReader(os.Stdin)
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for {
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line, more, err := bufReader.ReadLine()
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if more {
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return errors.New("Input line is too long")
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} else if err == io.EOF {
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break
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} else if len(line) == 0 {
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continue
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} else if err != nil {
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return err
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}
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pArgs := persistentArgs(line)
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out, err := exec.Command(pArgs[0], pArgs[1:]...).Output()
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if err != nil {
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return err
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}
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fmt.Println(string(out))
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}
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return nil
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}
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func cmdConsole(cmd *cobra.Command, args []string) error {
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for {
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fmt.Printf("> ")
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bufReader := bufio.NewReader(os.Stdin)
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line, more, err := bufReader.ReadLine()
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if more {
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return errors.New("Input is too long")
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} else if err != nil {
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return err
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}
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pArgs := persistentArgs(line)
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out, err := exec.Command(pArgs[0], pArgs[1:]...).Output()
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if err != nil {
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return err
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}
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fmt.Println(string(out))
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}
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return nil
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}
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// Have the application echo a message
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func cmdEcho(cmd *cobra.Command, args []string) error {
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res, err := client.EchoSync(args[0])
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if err != nil {
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return err
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}
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printResponse(cmd, args, response{
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Data: []byte(res.Message),
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})
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return nil
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}
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// Get some info from the application
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func cmdInfo(cmd *cobra.Command, args []string) error {
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var version string
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if len(args) == 1 {
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version = args[0]
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}
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res, err := client.InfoSync(types.RequestInfo{version})
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if err != nil {
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return err
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}
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printResponse(cmd, args, response{
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Data: []byte(res.Data),
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})
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return nil
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}
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// Set an option on the application
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func cmdSetOption(cmd *cobra.Command, args []string) error {
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key, val := args[0], args[1]
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res, err := client.SetOptionSync(types.RequestSetOption{key, val})
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if err != nil {
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return err
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}
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printResponse(cmd, args, response{
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Log: res.Log,
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})
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return nil
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}
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// Append a new tx to application
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func cmdDeliverTx(cmd *cobra.Command, args []string) error {
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txBytes, err := stringOrHexToBytes(args[0])
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if err != nil {
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return err
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}
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res, err := client.DeliverTxSync(txBytes)
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if err != nil {
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return err
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}
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printResponse(cmd, args, response{
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Code: res.Code,
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Data: res.Data,
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Log: res.Log,
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})
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return nil
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}
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// Validate a tx
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func cmdCheckTx(cmd *cobra.Command, args []string) error {
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txBytes, err := stringOrHexToBytes(args[0])
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if err != nil {
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return err
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}
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res, err := client.CheckTxSync(txBytes)
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if err != nil {
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return err
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}
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printResponse(cmd, args, response{
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Code: res.Code,
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Data: res.Data,
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Log: res.Log,
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})
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return nil
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}
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// Get application Merkle root hash
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func cmdCommit(cmd *cobra.Command, args []string) error {
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res, err := client.CommitSync()
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if err != nil {
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return err
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}
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printResponse(cmd, args, response{
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Code: res.Code,
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Data: res.Data,
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Log: res.Log,
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})
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return nil
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}
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// Query application state
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func cmdQuery(cmd *cobra.Command, args []string) error {
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queryBytes, err := stringOrHexToBytes(args[0])
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if err != nil {
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return err
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}
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resQuery, err := client.QuerySync(types.RequestQuery{
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Data: queryBytes,
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Path: path,
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Height: uint64(height),
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Prove: prove,
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})
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if err != nil {
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return err
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}
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printResponse(cmd, args, response{
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Code: resQuery.Code,
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Log: resQuery.Log,
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Query: &queryResponse{
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Key: resQuery.Key,
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Value: resQuery.Value,
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Height: resQuery.Height,
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Proof: resQuery.Proof,
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},
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})
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return nil
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}
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func cmdCounter(cmd *cobra.Command, args []string) error {
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app := counter.NewCounterApplication(serial)
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logger := log.NewTMLogger(log.NewSyncWriter(os.Stdout))
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// Start the listener
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srv, err := server.NewServer(addrC, abci, app)
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if err != nil {
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return err
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}
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srv.SetLogger(logger.With("module", "abci-server"))
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if _, err := srv.Start(); err != nil {
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return err
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}
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// Wait forever
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cmn.TrapSignal(func() {
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// Cleanup
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srv.Stop()
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})
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return nil
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}
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func cmdDummy(cmd *cobra.Command, args []string) error {
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logger := log.NewTMLogger(log.NewSyncWriter(os.Stdout))
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// Create the application - in memory or persisted to disk
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var app types.Application
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if persist == "" {
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app = dummy.NewDummyApplication()
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} else {
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app = dummy.NewPersistentDummyApplication(persist)
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app.(*dummy.PersistentDummyApplication).SetLogger(logger.With("module", "dummy"))
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}
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// Start the listener
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srv, err := server.NewServer(addrD, abci, app)
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if err != nil {
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return err
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}
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srv.SetLogger(logger.With("module", "abci-server"))
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if _, err := srv.Start(); err != nil {
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return err
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}
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// Wait forever
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cmn.TrapSignal(func() {
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// Cleanup
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srv.Stop()
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})
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return nil
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}
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//--------------------------------------------------------------------------------
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func printResponse(cmd *cobra.Command, args []string, rsp response) {
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if verbose {
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fmt.Println(">", cmd.Use, strings.Join(args, " "))
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}
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// Always print the status code.
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fmt.Printf("-> code: %s\n", rsp.Code.String())
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if len(rsp.Data) != 0 {
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// Do no print this line when using the commit command
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// because the string comes out as gibberish
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if cmd.Use != "commit" {
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fmt.Printf("-> data: %s\n", rsp.Data)
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}
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fmt.Printf("-> data.hex: 0x%X\n", rsp.Data)
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}
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if rsp.Log != "" {
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fmt.Printf("-> log: %s\n", rsp.Log)
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}
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if rsp.Query != nil {
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fmt.Printf("-> height: %d\n", rsp.Query.Height)
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if rsp.Query.Key != nil {
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fmt.Printf("-> key: %s\n", rsp.Query.Key)
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fmt.Printf("-> key.hex: %X\n", rsp.Query.Key)
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}
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if rsp.Query.Value != nil {
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fmt.Printf("-> value: %s\n", rsp.Query.Value)
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fmt.Printf("-> value.hex: %X\n", rsp.Query.Value)
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}
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if rsp.Query.Proof != nil {
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fmt.Printf("-> proof: %X\n", rsp.Query.Proof)
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}
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}
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}
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// NOTE: s is interpreted as a string unless prefixed with 0x
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func stringOrHexToBytes(s string) ([]byte, error) {
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if len(s) > 2 && strings.ToLower(s[:2]) == "0x" {
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b, err := hex.DecodeString(s[2:])
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if err != nil {
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err = fmt.Errorf("Error decoding hex argument: %s", err.Error())
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return nil, err
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}
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return b, nil
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}
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if !strings.HasPrefix(s, "\"") || !strings.HasSuffix(s, "\"") {
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err := fmt.Errorf("Invalid string arg: \"%s\". Must be quoted or a \"0x\"-prefixed hex string", s)
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return nil, err
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}
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return []byte(s[1 : len(s)-1]), nil
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}
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