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326 lines
6.6 KiB
326 lines
6.6 KiB
package main
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import (
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"bufio"
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"errors"
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"fmt"
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"io"
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"net"
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"os"
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"strings"
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"github.com/codegangsta/cli"
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. "github.com/tendermint/go-common"
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"github.com/tendermint/go-wire/expr"
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"github.com/tendermint/tmsp/types"
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)
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// connection is a global variable so it can be reused by the console
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var conn net.Conn
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func main() {
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app := cli.NewApp()
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app.Name = "tmsp-cli"
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app.Usage = "tmsp-cli [command] [args...]"
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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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}
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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 tmsp commands against an application",
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Action: func(c *cli.Context) {
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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 tmsp console for multiple commands",
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Action: func(c *cli.Context) {
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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) {
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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) {
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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) {
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cmdSetOption(c)
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},
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},
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{
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Name: "append_tx",
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Usage: "Append a new tx to application",
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Action: func(c *cli.Context) {
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cmdAppendTx(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) {
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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) {
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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) {
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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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app.Run(os.Args)
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}
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func before(c *cli.Context) error {
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if conn == nil {
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var err error
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conn, err = Connect(c.GlobalString("address"))
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if err != nil {
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Exit(err.Error())
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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 cmdBatch(app *cli.App, c *cli.Context) {
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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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fmt.Println("input line is too long")
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return
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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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fmt.Println(err.Error())
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return
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}
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args := []string{"tmsp"}
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args = append(args, strings.Split(string(line), " ")...)
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app.Run(args)
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}
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}
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func cmdConsole(app *cli.App, c *cli.Context) {
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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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fmt.Println("input is too long")
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return
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} else if err != nil {
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fmt.Println(err.Error())
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return
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}
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args := []string{"tmsp"}
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args = append(args, strings.Split(string(line), " ")...)
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app.Run(args)
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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) {
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args := c.Args()
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if len(args) != 1 {
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fmt.Println("echo takes 1 argument")
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return
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}
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res, err := makeRequest(conn, types.RequestEcho(args[0]))
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if err != nil {
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fmt.Println(err.Error())
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return
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}
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printResponse(res, string(res.Data))
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}
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// Get some info from the application
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func cmdInfo(c *cli.Context) {
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res, err := makeRequest(conn, types.RequestInfo())
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if err != nil {
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fmt.Println(err.Error())
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return
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}
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printResponse(res, string(res.Data))
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}
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// Set an option on the application
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func cmdSetOption(c *cli.Context) {
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args := c.Args()
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if len(args) != 2 {
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fmt.Println("set_option takes 2 arguments (key, value)")
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return
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}
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res, err := makeRequest(conn, types.RequestSetOption(args[0], args[1]))
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if err != nil {
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fmt.Println(err.Error())
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return
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}
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printResponse(res, Fmt("%s=%s", args[0], args[1]))
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}
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// Append a new tx to application
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func cmdAppendTx(c *cli.Context) {
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args := c.Args()
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if len(args) != 1 {
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fmt.Println("append_tx takes 1 argument")
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return
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}
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txExprString := c.Args()[0]
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txBytes, err := expr.Compile(txExprString)
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if err != nil {
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fmt.Println(err.Error())
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return
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}
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res, err := makeRequest(conn, types.RequestAppendTx(txBytes))
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if err != nil {
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fmt.Println(err.Error())
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return
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}
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printResponse(res, string(res.Data))
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}
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// Validate a tx
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func cmdCheckTx(c *cli.Context) {
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args := c.Args()
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if len(args) != 1 {
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fmt.Println("check_tx takes 1 argument")
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return
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}
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txExprString := c.Args()[0]
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txBytes, err := expr.Compile(txExprString)
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if err != nil {
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fmt.Println(err.Error())
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return
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}
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res, err := makeRequest(conn, types.RequestCheckTx(txBytes))
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if err != nil {
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fmt.Println(err.Error())
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return
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}
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printResponse(res, string(res.Data))
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}
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// Get application Merkle root hash
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func cmdCommit(c *cli.Context) {
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res, err := makeRequest(conn, types.RequestCommit())
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if err != nil {
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fmt.Println(err.Error())
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return
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}
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printResponse(res, Fmt("%X", res.Data))
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}
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// Query application state
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func cmdQuery(c *cli.Context) {
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args := c.Args()
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if len(args) != 1 {
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fmt.Println("query takes 1 argument")
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return
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}
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queryExprString := args[0]
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queryBytes, err := expr.Compile(queryExprString)
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if err != nil {
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fmt.Println(err.Error())
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return
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}
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res, err := makeRequest(conn, types.RequestQuery(queryBytes))
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if err != nil {
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fmt.Println(err.Error())
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return
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}
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printResponse(res, string(res.Data))
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}
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//--------------------------------------------------------------------------------
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func printResponse(res *types.Response, s string) {
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switch res.Type {
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case types.MessageType_AppendTx, types.MessageType_CheckTx, types.MessageType_Query:
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fmt.Printf("-> code: %s\n", res.Code.String())
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}
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if res.Error != "" {
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fmt.Printf("-> error: %s\n", res.Error)
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}
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if s != "" {
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fmt.Printf("-> data: {%s}\n", s)
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}
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if res.Log != "" {
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fmt.Printf("-> log: %s\n", res.Log)
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}
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}
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func responseString(res *types.Response) string {
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return Fmt("type: %v\tdata: %v\tcode: %v", res.Type, res.Data, res.Code)
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}
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func makeRequest(conn net.Conn, req *types.Request) (*types.Response, error) {
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// Write desired request
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err := types.WriteMessage(req, conn)
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if err != nil {
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return nil, err
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}
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// Write flush request
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err = types.WriteMessage(types.RequestFlush(), conn)
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if err != nil {
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return nil, err
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}
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// Read desired response
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var res = &types.Response{}
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err = types.ReadMessage(conn, res)
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if err != nil {
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return nil, err
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}
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// Read flush response
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var resFlush = &types.Response{}
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err = types.ReadMessage(conn, resFlush)
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if err != nil {
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return nil, err
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}
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if resFlush.Type != types.MessageType_Flush {
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return nil, errors.New(Fmt("Expected types.MessageType_Flush but got %v instead", resFlush.Type))
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}
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return res, nil
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}
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