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356 lines
7.9 KiB
356 lines
7.9 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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"log"
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"os"
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"strings"
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"github.com/tendermint/abci/client"
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"github.com/tendermint/abci/types"
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"github.com/urfave/cli"
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)
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//structure for data passed to print response
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// variables must be exposed for JSON to read
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type response struct {
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Res types.Result
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Data string
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PrintCode bool
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Code string
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}
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func newResponse(res types.Result, data string, printCode bool) *response {
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rsp := &response{
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Res: res,
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Data: data,
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PrintCode: printCode,
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Code: "",
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}
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if printCode {
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rsp.Code = res.Code.String()
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}
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return rsp
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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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func main() {
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//workaround for the cli library (https://github.com/urfave/cli/issues/565)
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cli.OsExiter = func(_ int) {}
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app := cli.NewApp()
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app.Name = "abci-cli"
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app.Usage = "abci-cli [command] [args...]"
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app.Version = "0.3.0" // hex handling
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app.Flags = []cli.Flag{
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cli.StringFlag{
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Name: "address",
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Value: "tcp://127.0.0.1:46658",
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Usage: "address of application socket",
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},
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cli.StringFlag{
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Name: "abci",
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Value: "socket",
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Usage: "socket or grpc",
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},
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cli.BoolFlag{
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Name: "verbose",
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Usage: "print the command and results as if it were a console session",
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},
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}
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app.Commands = []cli.Command{
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{
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Name: "batch",
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Usage: "Run a batch of abci commands against an application",
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Action: func(c *cli.Context) error {
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return cmdBatch(app, c)
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},
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},
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{
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Name: "console",
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Usage: "Start an interactive abci console for multiple commands",
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Action: func(c *cli.Context) error {
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return cmdConsole(app, c)
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},
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},
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{
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Name: "echo",
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Usage: "Have the application echo a message",
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Action: func(c *cli.Context) error {
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return cmdEcho(c)
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},
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},
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{
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Name: "info",
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Usage: "Get some info about the application",
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Action: func(c *cli.Context) error {
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return cmdInfo(c)
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},
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},
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{
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Name: "set_option",
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Usage: "Set an option on the application",
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Action: func(c *cli.Context) error {
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return cmdSetOption(c)
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},
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},
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{
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Name: "deliver_tx",
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Usage: "Deliver a new tx to application",
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Action: func(c *cli.Context) error {
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return cmdDeliverTx(c)
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},
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},
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{
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Name: "check_tx",
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Usage: "Validate a tx",
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Action: func(c *cli.Context) error {
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return cmdCheckTx(c)
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},
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},
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{
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Name: "commit",
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Usage: "Commit the application state and return the Merkle root hash",
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Action: func(c *cli.Context) error {
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return cmdCommit(c)
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},
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},
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{
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Name: "query",
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Usage: "Query application state",
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Action: func(c *cli.Context) error {
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return cmdQuery(c)
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},
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},
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}
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app.Before = before
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err := app.Run(os.Args)
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if err != nil {
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log.Fatal(err.Error())
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}
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}
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func before(c *cli.Context) error {
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if client == nil {
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var err error
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client, err = abcicli.NewClient(c.GlobalString("address"), c.GlobalString("abci"), false)
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if err != nil {
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log.Fatal(err.Error())
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}
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}
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return nil
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}
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// badCmd is called when we invoke with an invalid first argument (just for console for now)
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func badCmd(c *cli.Context, cmd string) {
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fmt.Println("Unknown command:", cmd)
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fmt.Println("Please try one of the following:")
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fmt.Println("")
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cli.DefaultAppComplete(c)
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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 orginal 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(app *cli.App, c *cli.Context) 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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args := persistentArgs(line)
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app.Run(args) //cli prints error within its func call
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}
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return nil
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}
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func cmdConsole(app *cli.App, c *cli.Context) error {
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// don't hard exit on mistyped commands (eg. check vs check_tx)
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app.CommandNotFound = badCmd
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for {
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fmt.Printf("\n> ")
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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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args := persistentArgs(line)
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app.Run(args) //cli prints error within its func call
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}
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}
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// Have the application echo a message
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func cmdEcho(c *cli.Context) error {
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args := c.Args()
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if len(args) != 1 {
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return errors.New("Command echo takes 1 argument")
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}
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res := client.EchoSync(args[0])
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rsp := newResponse(res, string(res.Data), false)
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printResponse(c, rsp)
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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(c *cli.Context) error {
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resInfo, err := client.InfoSync()
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if err != nil {
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return err
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}
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rsp := newResponse(types.Result{}, string(resInfo.Data), false)
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printResponse(c, rsp)
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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(c *cli.Context) error {
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args := c.Args()
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if len(args) != 2 {
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return errors.New("Command set_option takes 2 arguments (key, value)")
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}
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res := client.SetOptionSync(args[0], args[1])
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rsp := newResponse(res, fmt.Sprintf("%s=%s", args[0], args[1]), false)
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printResponse(c, rsp)
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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(c *cli.Context) error {
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args := c.Args()
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if len(args) != 1 {
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return errors.New("Command deliver_tx takes 1 argument")
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}
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txBytes, err := stringOrHexToBytes(c.Args()[0])
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if err != nil {
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return err
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}
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res := client.DeliverTxSync(txBytes)
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rsp := newResponse(res, string(res.Data), true)
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printResponse(c, rsp)
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return nil
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}
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// Validate a tx
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func cmdCheckTx(c *cli.Context) error {
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args := c.Args()
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if len(args) != 1 {
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return errors.New("Command check_tx takes 1 argument")
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}
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txBytes, err := stringOrHexToBytes(c.Args()[0])
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if err != nil {
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return err
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}
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res := client.CheckTxSync(txBytes)
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rsp := newResponse(res, string(res.Data), true)
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printResponse(c, rsp)
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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(c *cli.Context) error {
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res := client.CommitSync()
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rsp := newResponse(res, fmt.Sprintf("0x%X", res.Data), false)
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printResponse(c, rsp)
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return nil
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}
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// Query application state
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func cmdQuery(c *cli.Context) error {
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args := c.Args()
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if len(args) != 1 {
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return errors.New("Command query takes 1 argument")
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}
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queryBytes, err := stringOrHexToBytes(c.Args()[0])
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if err != nil {
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return err
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}
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res := client.QuerySync(queryBytes)
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rsp := newResponse(res, string(res.Data), true)
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printResponse(c, rsp)
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return nil
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}
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//--------------------------------------------------------------------------------
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func printResponse(c *cli.Context, rsp *response) {
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verbose := c.GlobalBool("verbose")
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if verbose {
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fmt.Println(">", c.Command.Name, strings.Join(c.Args(), " "))
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}
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if rsp.PrintCode {
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fmt.Printf("-> code: %s\n", rsp.Code)
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}
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//if pr.res.Error != "" {
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// fmt.Printf("-> error: %s\n", pr.res.Error)
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//}
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if rsp.Data != "" {
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fmt.Printf("-> data: %s\n", rsp.Data)
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}
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if rsp.Res.Log != "" {
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fmt.Printf("-> log: %s\n", rsp.Res.Log)
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}
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if verbose {
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fmt.Println("")
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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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