func (a *App) internalRun() error {
if a.commandTitle == "" {
a.commandTitle = ">"
}
var historyFile string
usr, err := user.Current()
// Only load history if we can get the user
if err == nil {
historyFile = filepath.Join(usr.HomeDir, ".command_history")
}
l, err := readline.NewEx(&readline.Config{
Prompt: a.commandTitle,
HistoryFile: historyFile,
AutoComplete: readline.NewPrefixCompleter(a.completeOptions...),
})
if err != nil {
return err
}
a.line = l
log.SetOutput(l.Stderr())
for {
l, e := a.line.Readline()
if e != nil {
return e
}
if !a.parseCommand(l) {
break // exit main loop
}
}
return nil
}
func main() {
rl, err := readline.NewEx(&readline.Config{
Prompt: "> ",
HistoryFile: "/tmp/readline-multiline",
DisableAutoSaveHistory: true,
})
if err != nil {
panic(err)
}
defer rl.Close()
var cmds []string
for {
line, err := rl.Readline()
if err != nil {
break
}
line = strings.TrimSpace(line)
if len(line) == 0 {
continue
}
cmds = append(cmds, line)
if !strings.Contains(line, ";") {
rl.SetPrompt(">>> ")
continue
}
cmd := strings.Join(cmds, " ")
cmds = cmds[:0]
rl.SetPrompt("> ")
rl.SaveHistory(cmd)
println(cmd)
}
}
func main() {
l, err := readline.NewEx(&readline.Config{
Prompt: "\033[31m»\033[0m ",
HistoryFile: "/tmp/readline.tmp",
})
if err != nil {
panic(err)
}
defer l.Close()
log.SetOutput(l.Stderr())
for {
line, err := l.Readline()
if err != nil {
break
}
switch line {
case "help":
usage(l.Stderr())
case "sayhello":
go func() {
for _ = range time.Tick(time.Second) {
log.Println("hello")
}
}()
case "bye":
goto exit
case "":
default:
log.Println("you said:", strconv.Quote(line))
}
}
exit:
}
// runInteractive runs the SQL client interactively, presenting
// a prompt to the user for each statement.
func runInteractive(conn *sqlConn, config *readline.Config) (exitErr error) {
c := cliState{conn: conn}
state := cliStart
for {
if state == cliStop {
break
}
switch state {
case cliStart:
// The readline initialization is not placed in
// the doStart() method because of the defer.
c.ins, c.exitErr = readline.NewEx(config)
if c.exitErr != nil {
return c.exitErr
}
defer func() { _ = c.ins.Close() }()
state = c.doStart(cliQuerySyntax)
case cliQuerySyntax:
state = c.doQuerySyntax(cliStartLine)
case cliStartLine:
state = c.doStartLine(cliReadLine)
case cliContinueLine:
state = c.doContinueLine(cliReadLine)
case cliReadLine:
state = c.doReadLine(cliDecidePath)
case cliDecidePath:
state = c.doDecidePath()
case cliProcessFirstLine:
state = c.doProcessFirstLine(cliReadLine, cliHandleCliCmd)
case cliHandleCliCmd:
state = c.doHandleCliCmd(cliReadLine, cliPrepareStatementLine)
case cliPrepareStatementLine:
state = c.doPrepareStatementLine(
cliStartLine, cliContinueLine, cliCheckStatement, cliRunStatement,
)
case cliCheckStatement:
state = c.doCheckStatement(cliStartLine, cliContinueLine, cliRunStatement)
case cliRunStatement:
state = c.doRunStatement(cliQuerySyntax)
default:
panic(fmt.Sprintf("unknown state: %d", state))
}
}
return c.exitErr
}
func (app *App) Interactive() {
rl, err := readline.NewEx(&readline.Config{
Prompt: color.BlueString("say » "),
HistoryFile: app.Config.HistoryFile,
})
if err != nil {
log.Fatal(err)
}
defer rl.Close()
app.Log.SetOutput(rl.Stderr())
log.SetOutput(rl.Stderr())
color.Output = ansicolor.NewAnsiColorWriter(rl.Stderr())
pings := make(map[string]time.Time)
// Subscribe to all replies and print them to stdout
app.Client.Subscribe("", "self", func(msg sarif.Message) {
text := msg.Text
if text == "" {
text = msg.Action + " from " + msg.Source
}
if msg.IsAction("err") {
text = color.RedString(text)
}
if sent, ok := pings[msg.CorrId]; ok {
text += color.YellowString("[%.1fms]", time.Since(sent).Seconds()*1e3)
}
log.Println(color.GreenString(" « ") + strings.Replace(text, "\n", "\n ", -1))
})
// Interactive mode sends all lines from stdin.
for {
line, err := rl.Readline()
if err != nil {
if err == io.EOF {
return
}
log.Fatal(err)
}
if len(line) == 0 {
continue
}
// Publish natural message
msg := sarif.Message{
Id: sarif.GenerateId(),
Action: "natural/handle",
Text: line,
}
if *profile {
pings[msg.Id] = time.Now()
}
app.Client.Publish(msg)
}
}
// GetInput input terminal
func GetInput(addr string) (string, error) {
prpt := fmt.Sprintf("(%s) > ", addr)
rl, err := readline.NewEx(&readline.Config{Prompt: prpt, HistoryFile: "/tmp/mem_cli_history.tmp"})
defer rl.Close()
if err != nil {
return "", err
}
line, _ := rl.Readline()
return line, nil
}
func main() {
//Initialize Config
GetConfig()
CheckState()
Clear()
Msg(HeaderMsg, "discord-cli - version: %s\n\n", Version)
//NewSession
Session = DiscordState.NewSession(Config.Username, Config.Password) //Please don't abuse
err := Session.Start()
if err != nil {
log.Println("Session Failed")
log.Fatalln(err)
}
//Attach New Window
InitWindow()
//Attach Even Handlers
State.Session.DiscordGo.AddHandler(newMessage)
//Setup Readline
rl, err := readline.NewEx(&readline.Config{
Prompt: "> ",
UniqueEditLine: true,
})
defer rl.Close()
log.SetOutput(rl.Stderr()) // let "log" write to l.Stderr instead of os.Stderr
//Start Listening
for {
line, _ := rl.Readline()
//QUIT
if line == ":q" {
break
}
//Parse Commands
line = ParseForCommands(line)
line = ParseForMentions(line)
if line != "" {
State.Session.DiscordGo.ChannelMessageSend(State.Channel.ID, line)
}
}
return
}
func main() {
rl, err := readline.NewEx(&readline.Config{
UniqueEditLine: true,
})
if err != nil {
panic(err)
}
defer rl.Close()
rl.SetPrompt("username: "******"Hi,", username+"! My name is Dave.")
rl.SetPrompt(username + "> ")
done := make(chan struct{})
go func() {
rand.Seed(time.Now().Unix())
loop:
for {
select {
case <-time.After(time.Duration(rand.Intn(20)) * 100 * time.Millisecond):
case <-done:
break loop
}
log.Println("Dave:", "hello")
}
log.Println("Dave:", "bye")
done <- struct{}{}
}()
for {
ln := rl.Line()
if ln.CanContinue() {
continue
} else if ln.CanBreak() {
break
}
log.Println(username+":", ln.Line)
}
rl.Clean()
done <- struct{}{}
<-done
}
func startLocal() {
rl, err := readline.NewEx(
&readline.Config{
Prompt: "> ",
},
)
if err != nil {
panic(err)
}
g := NewLocalGame(rl)
g.play()
}
func main() {
l, err := readline.NewEx(&readline.Config{
Prompt: "\033[31m»\033[0m ",
HistoryFile: "/tmp/readline.tmp",
AutoComplete: completer,
})
if err != nil {
panic(err)
}
defer l.Close()
log.SetOutput(l.Stderr())
for {
line, err := l.Readline()
if err != nil {
break
}
switch {
case line == "help":
usage(l.Stderr())
case strings.HasPrefix(line, "setprompt"):
prompt := line[10:]
if prompt == "" {
log.Println("setprompt <prompt>")
break
}
l.SetPrompt(prompt)
case strings.HasPrefix(line, "say"):
line := strings.TrimSpace(line[3:])
if len(line) == 0 {
log.Println("say what?")
break
}
go func() {
for _ = range time.Tick(time.Second) {
log.Println(line)
}
}()
case line == "bye":
goto exit
case line == "":
default:
log.Println("you said:", strconv.Quote(line))
}
}
exit:
}
// NewShell creates a new shell with default settings. Uses standard output and default prompt ">>".
func NewShell(completer *readline.PrefixCompleter) *Shell {
shell := &Shell{
prompt: defaultPrompt,
showPrompt: true,
functions: make(map[string]CmdFunc),
reader: &shellReader{
scanner: bufio.NewReader(os.Stdin),
},
writer: os.Stdout,
haltChan: make(chan struct{}),
}
rl, err := readline.NewEx(&readline.Config{Prompt: shell.prompt, AutoComplete: completer})
if err != nil {
panic(err)
}
shell.rl = rl
addDefaultFuncs(shell)
return shell
}
func (c *ConsoleCommand) modeInteractive(session *repl.Session, ui cli.Ui) int {
// Configure input
l, err := readline.NewEx(wrappedreadline.Override(&readline.Config{
Prompt: "> ",
InterruptPrompt: "^C",
EOFPrompt: "exit",
HistorySearchFold: true,
}))
if err != nil {
c.Ui.Error(fmt.Sprintf(
"Error initializing console: %s",
err))
return 1
}
defer l.Close()
for {
// Read a line
line, err := l.Readline()
if err == readline.ErrInterrupt {
if len(line) == 0 {
break
} else {
continue
}
} else if err == io.EOF {
break
}
out, err := session.Handle(line)
if err == repl.ErrSessionExit {
break
}
if err != nil {
ui.Error(err.Error())
continue
}
ui.Output(out)
}
return 0
}
func main() {
rl, err := readline.NewEx(&readline.Config{
Prompt: "> ",
HistoryFile: "/tmp/flagly-shell.readline",
})
if err != nil {
println(err.Error())
os.Exit(1)
}
defer rl.Close()
var p Program
fset, err := flagly.Compile("", &p)
if err != nil {
println(err.Error())
os.Exit(1)
}
rl.Config.AutoComplete = &readline.SegmentComplete{fset.Completer()}
for {
line, err := rl.Readline()
if err != nil {
break
}
if line == "" {
continue
}
command, err := shlex.Split(line)
if err != nil {
println("error: " + err.Error())
continue
}
if err := fset.Run(command); err != nil {
println(err.Error())
}
}
}
func main() {
l, err := readline.NewEx(&readline.Config{
Prompt: "\033[31m»\033[0m ",
HistoryFile: "/tmp/readline.tmp",
AutoComplete: completer,
InterruptPrompt: "^C",
EOFPrompt: "exit",
HistorySearchFold: true,
})
if err != nil {
panic(err)
}
defer l.Close()
setPasswordCfg := l.GenPasswordConfig()
setPasswordCfg.SetListener(func(line []rune, pos int, key rune) (newLine []rune, newPos int, ok bool) {
l.SetPrompt(fmt.Sprintf("Enter password(%v): ", len(line)))
l.Refresh()
return nil, 0, false
})
log.SetOutput(l.Stderr())
for {
line, err := l.Readline()
if err == readline.ErrInterrupt {
if len(line) == 0 {
break
} else {
continue
}
} else if err == io.EOF {
break
}
line = strings.TrimSpace(line)
switch {
case strings.HasPrefix(line, "mode "):
switch line[5:] {
case "vi":
l.SetVimMode(true)
case "emacs":
l.SetVimMode(false)
default:
println("invalid mode:", line[5:])
}
case line == "mode":
if l.IsVimMode() {
println("current mode: vim")
} else {
println("current mode: emacs")
}
case line == "login":
pswd, err := l.ReadPassword("please enter your password: "******"you enter:", strconv.Quote(string(pswd)))
case line == "help":
usage(l.Stderr())
case line == "setpassword":
pswd, err := l.ReadPasswordWithConfig(setPasswordCfg)
if err == nil {
println("you set:", strconv.Quote(string(pswd)))
}
case strings.HasPrefix(line, "setprompt"):
if len(line) <= 10 {
log.Println("setprompt <prompt>")
break
}
l.SetPrompt(line[10:])
case strings.HasPrefix(line, "say"):
line := strings.TrimSpace(line[3:])
if len(line) == 0 {
log.Println("say what?")
break
}
go func() {
for range time.Tick(time.Second) {
log.Println(line)
}
}()
case line == "bye":
goto exit
case line == "sleep":
log.Println("sleep 4 second")
time.Sleep(4 * time.Second)
case line == "":
default:
log.Println("you said:", strconv.Quote(line))
}
}
exit:
}
func main() {
kingpin.Parse()
var conn net.Conn
var err error
if *rawtls {
conn, err = tls.Dial("tcp", *address, &tls.Config{
InsecureSkipVerify: true,
})
if err != nil {
fmt.Fprintf(os.Stderr, "Connect failed: %v\n", err)
return
}
} else {
conn, err = net.Dial("tcp", *address)
if err != nil {
fmt.Fprintf(os.Stderr, "Connect failed: %v\n", err)
return
}
}
c := client.New(conn)
go func() {
err := c.Serve()
if err != nil {
fmt.Fprintf(os.Stderr, "\nConnection lost: %v\n", err)
os.Exit(-1)
}
}()
_, _, err = c.Version(1024*1024, qp.Version)
if err != nil {
fmt.Fprintf(os.Stderr, "Version failed: %v\n", err)
return
}
root, _, err := c.Attach(nil, *user, *service)
if err != nil {
fmt.Fprintf(os.Stderr, "Attach failed: %v\n", err)
return
}
cwd := root
confirmation, err = readline.New("")
if err != nil {
fmt.Fprintf(os.Stderr, "Could not make confirmation readline instance: %v\n", err)
return
}
if len(*command) > 0 {
args := ""
for i := 1; i < len(*command); i++ {
if i != 1 {
args += " "
}
args += (*command)[i]
}
f, ok := cmds[(*command)[0]]
if !ok {
fmt.Fprintf(os.Stderr, "no such command: [%s]\n", *command)
return
}
cwd, err = f(root, cwd, args)
if err != nil {
fmt.Fprintf(os.Stderr, "\ncommand %s failed: %v\n", *command, err)
}
return
}
completer := readline.NewPrefixCompleter()
for k := range cmds {
completer.Children = append(completer.Children, readline.PcItem(k))
}
rl, err := readline.NewEx(&readline.Config{
Prompt: "9p> ",
AutoComplete: completer,
})
if err != nil {
fmt.Fprintf(os.Stderr, "failed to create readline: %v\n", err)
return
}
defer rl.Close()
fmt.Fprintf(os.Stderr, "Welcome to the qptools 9P cli.\nPress tab to see available commands.\n")
for {
line, err := rl.Readline()
if err != nil { // io.EOF
break
}
idx := strings.Index(line, " ")
var cmd, args string
if idx != -1 {
cmd = line[:idx]
args = line[idx+1:]
} else {
cmd = line
}
f, ok := cmds[cmd]
if !ok {
fmt.Fprintf(os.Stderr, "no such command: [%s]\n", cmd)
continue
}
cwd, err = f(root, cwd, args)
if err != nil {
fmt.Fprintf(os.Stderr, "\ncommand %s failed: %v\n", cmd, err)
}
}
}
func main() {
app := cli.NewApp()
app.Name = "nats-repl"
app.Usage = "REPL for NATS"
app.Flags = []cli.Flag{
cli.StringFlag{
Name: "server, s",
EnvVar: "NATS_DEFAULT_URL",
Usage: "NATS `URL` to connect to",
},
}
app.Action = func(ctx *cli.Context) error {
nc, err := nats.Connect(ctx.String("server"))
if err != nil {
logError(fmt.Sprintf("%v", err))
os.Exit(1)
}
logInfo(fmt.Sprintf("connected to %s", ctx.String("server")))
rl, err := readline.NewEx(&readline.Config{
Prompt: colorize("1;37", "nats> "),
HistoryFile: "/tmp/nats-repl-history.tmp",
InterruptPrompt: "^C",
EOFPrompt: "exit",
})
if err != nil {
panic(err)
}
defer rl.Close()
repl:
for {
line, err := rl.Readline()
switch err {
case readline.ErrInterrupt:
if len(line) == 0 {
break repl
} else {
continue repl
}
case io.EOF:
break repl
}
args := strings.Fields(line)
switch {
case len(args) == 0:
continue repl
case args[0] == "pub":
var subject string
if len(args) >= 2 {
subject = args[1]
} else {
logError("subject is required")
continue repl
}
var data string
if len(args) >= 3 {
data = strings.Join(args[2:], " ")
} else {
data = ""
}
nc.Publish(subject, []byte(data))
case args[0] == "sub":
sigch := make(chan os.Signal, 1)
signal.Notify(sigch, os.Interrupt)
var subject string
if len(args) >= 2 {
subject = args[1]
} else {
logError("subject is required")
continue repl
}
subch := make(chan *nats.Msg, 64)
sub, _ := nc.ChanSubscribe(subject, subch)
sub:
for {
select {
case msg := <-subch:
fmt.Printf("[%s] %s\n", msg.Subject, string(msg.Data))
case <-sigch:
fmt.Println()
break sub
}
}
close(sigch)
close(subch)
signal.Reset(os.Interrupt)
sub.Unsubscribe()
case args[0] == "req":
var subject string
if len(args) >= 2 {
subject = args[1]
} else {
logError("subject is required")
continue repl
}
var data string
if len(args) >= 3 {
data = strings.Join(args[2:], " ")
} else {
data = ""
}
msg, err := nc.Request(subject, []byte(data), 5000*time.Millisecond)
if err != nil {
logError(fmt.Sprintf("%v", err))
break
}
fmt.Println(string(msg.Data))
case args[0] == "help":
logInfo("COMMANDS:")
logInfo("pub <subject> [data]")
logInfo("sub <subject>")
logInfo("req <subject> [data]")
case args[0] == "exit":
break repl
default:
logError(fmt.Sprintf("unknown command: %s", args[0]))
}
}
return nil
}
app.Run(os.Args)
}
func main() {
log.SetLevel(log.WarnLevel)
log.SetOutput(os.Stderr)
l, err := readline.NewEx(&readline.Config{
Prompt: "\033[31m»\033[0m ",
HistoryFile: "/tmp/sjdb-readline.tmp",
AutoComplete: completer,
})
if err != nil {
panic(err)
}
db, err := sjdb.New("metadata-db.dat")
if err != nil {
panic(err)
}
defer func() {
if err := db.Close(); err != nil {
panic(err)
}
l.Close()
}()
log.SetOutput(l.Stderr())
for {
line, err := l.Readline()
if err != nil {
break
}
switch {
case strings.HasPrefix(line, "set-log-level "):
setLogLevel(strings.Trim(line[14:], " "))
case strings.HasPrefix(line, "insert "):
insert(db, l, line[7:])
case strings.HasPrefix(line, "bulk-insert "):
bulkInsert(db, l, line[12:])
case strings.HasPrefix(line, "find "):
find(db, line[5:])
case strings.HasPrefix(line, "search "):
search(db, l, line[7:])
case strings.HasPrefix(line, "update "):
update(db, l, line[7:])
case strings.HasPrefix(line, "delete "):
deleteRecord(db, line[7:])
case strings.HasPrefix(line, "bulk-delete "):
bulkDelete(db, l, line[12:])
case strings.HasPrefix(strings.Trim(line, " "), "show-tree"):
showTree(db)
case line == "exit":
goto exit
case line == "help":
usage(l.Stderr())
case line == "":
default:
log.Error("Unknown command:", strconv.Quote(line))
}
}
exit:
}
func setLogLevel(level string) {
switch level {
case "debug":
log.SetLevel(log.DebugLevel)
case "info":
log.SetLevel(log.InfoLevel)
case "warn":
log.SetLevel(log.WarnLevel)
default:
fmt.Printf("Invalid log level: %#v", level)
}
}
func insert(db sjdb.SimpleJSONDB, l *readline.Instance, args string) {
idAndJson := strings.SplitN(args, " ", 2)
if len(idAndJson) != 2 {
usage(l.Stderr())
}
id, err := strconv.ParseUint(idAndJson[0], 10, 32)
if err != nil {
log.Error(err)
return
}
if err = db.InsertRecord(uint32(id), idAndJson[1]); err != nil {
log.Error(err)
}
}
func update(db sjdb.SimpleJSONDB, l *readline.Instance, args string) {
idAndJson := strings.SplitN(args, " ", 2)
if len(idAndJson) != 2 {
usage(l.Stderr())
}
id, err := strconv.ParseUint(idAndJson[0], 10, 32)
if err != nil {
log.Error(err)
return
}
if err = db.UpdateRecord(uint32(id), idAndJson[1]); err != nil {
log.Error(err)
}
log.Warn("Record updated")
}
func bulkInsert(db sjdb.SimpleJSONDB, l *readline.Instance, args string) {
argsArr := strings.SplitN(args, " ", 3)
if len(argsArr) != 3 {
usage(l.Stderr())
return
}
initialID, err := strconv.ParseUint(strings.Trim(argsArr[0], " "), 10, 32)
if err != nil {
log.Error(err)
return
}
lastID, err := strconv.ParseUint(strings.Trim(argsArr[1], " "), 10, 32)
if err != nil {
log.Error(err)
return
}
if initialID > lastID {
log.Error("Invalid ID range provided")
return
}
jsonStringTemplate := argsArr[2]
for id := initialID; id <= lastID; id++ {
log.Warnf("Inserting %v", id)
if err = db.InsertRecord(uint32(id), jsonStringTemplate); err != nil {
log.Error(err)
return
}
}
log.Warnf("%d records inserted", lastID-initialID+1)
}
func bulkDelete(db sjdb.SimpleJSONDB, l *readline.Instance, args string) {
argsArr := strings.SplitN(args, " ", 2)
if len(argsArr) != 2 {
usage(l.Stderr())
return
}
initialID, err := strconv.ParseUint(strings.Trim(argsArr[0], " "), 10, 32)
if err != nil {
log.Error(err)
return
}
lastID, err := strconv.ParseUint(strings.Trim(argsArr[1], " "), 10, 32)
if err != nil {
log.Error(err)
return
}
if initialID > lastID {
log.Error("Invalid ID range provided")
return
}
for id := initialID; id <= lastID; id++ {
log.Warnf("Deleting %v", id)
if err = db.DeleteRecord(uint32(id)); err != nil {
log.Error(err)
return
}
}
log.Warnf("%d records removed", lastID-initialID+1)
}
func find(db sjdb.SimpleJSONDB, args string) {
id, err := strconv.ParseUint(strings.Trim(args, " "), 10, 32)
if err != nil {
log.Error(err)
return
}
record, err := db.FindRecord(uint32(id))
if err != nil {
log.Error(err)
return
}
var out bytes.Buffer
json.Indent(&out, record.Data, "", " ")
out.WriteString("\n")
out.WriteTo(os.Stdout)
}
func search(db sjdb.SimpleJSONDB, l *readline.Instance, args string) {
argsArr := strings.SplitN(args, " ", 3)
if len(argsArr) != 2 {
usage(l.Stderr())
return
}
records, err := db.SearchRecords(argsArr[0], argsArr[1])
if err != nil {
log.Error(err)
return
}
if len(records) == 0 {
fmt.Println("No records found")
return
}
for _, record := range records {
fmt.Printf("\tID: %04d | DATA: `%s`\n", record.ID, record.Data)
}
}
func deleteRecord(db sjdb.SimpleJSONDB, args string) {
id, err := strconv.ParseUint(strings.Trim(args, " "), 10, 32)
if err != nil {
log.Error(err)
return
}
if err = db.DeleteRecord(uint32(id)); err != nil {
log.Error(err)
return
}
fmt.Printf("Record %d deleted\n", id)
log.Warnf("Record %d deleted", id)
}
func showTree(db sjdb.SimpleJSONDB) {
println(db.DumpIndex())
}
func main() {
l, err := readline.NewEx(&readline.Config{
Prompt: "\033[31m»\033[0m ",
HistoryFile: "/tmp/readline.tmp",
AutoComplete: completer,
})
if err != nil {
panic(err)
}
defer l.Close()
log.SetOutput(l.Stderr())
for {
line, err := l.Readline()
if err != nil {
break
}
line = strings.TrimSpace(line)
switch {
case strings.HasPrefix(line, "mode "):
switch line[5:] {
case "vi":
l.SetVimMode(true)
case "emacs":
l.SetVimMode(false)
default:
println("invalid mode:", line[5:])
}
case line == "mode":
if l.IsVimMode() {
println("current mode: vim")
} else {
println("current mode: emacs")
}
case line == "login":
pswd, err := l.ReadPassword("please enter your password: "******"you enter:", strconv.Quote(string(pswd)))
case line == "help":
usage(l.Stderr())
case strings.HasPrefix(line, "setprompt"):
prompt := line[10:]
if prompt == "" {
log.Println("setprompt <prompt>")
break
}
l.SetPrompt(prompt)
case strings.HasPrefix(line, "say"):
line := strings.TrimSpace(line[3:])
if len(line) == 0 {
log.Println("say what?")
break
}
go func() {
for _ = range time.Tick(time.Second) {
log.Println(line)
}
}()
case line == "bye":
goto exit
case line == "":
default:
log.Println("you said:", strconv.Quote(line))
}
}
exit:
}
func main() {
flag.Parse()
if *server == "" {
fmt.Fprintf(os.Stderr, "--server cannot be empty.\n")
os.Exit(1)
}
if *port != 0 {
http.Handle("/metrics", prometheus.Handler())
go http.ListenAndServe(fmt.Sprintf(":%v", *port), nil)
}
var opts []grpc.DialOption
if len(*caFile) != 0 {
var creds credentials.TransportAuthenticator
var err error
creds, err = credentials.NewClientTLSFromFile(*caFile, "")
if err != nil {
log.Exitf("Failed to create TLS credentials %v\n", err)
}
opts = append(opts, grpc.WithTransportCredentials(creds))
} else {
opts = append(opts, grpc.WithInsecure())
}
c := &Multiclient{
addr: *server,
opts: []doorman.Option{doorman.DialOpts(opts...)},
clients: make(map[string]*doorman.Client),
resources: make(map[key]doorman.Resource),
capacities: make(map[key]float64),
}
defer c.Close()
line, err := readline.NewEx(&readline.Config{
Prompt: "> ",
HistoryFile: "/tmp/doorman_shell.tmp",
InterruptPrompt: "\nInterrupt, Press Ctrl+D to exit",
})
if err != nil {
fmt.Printf("ERROR: %v\n", err)
os.Exit(1)
}
for {
data, err := line.Readline()
if err == io.EOF {
break
}
if err != nil {
fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)
}
command, err := shlex.Split(data)
if err != nil {
fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)
}
err = c.Eval(command)
if err == io.EOF {
break
}
if err != nil {
fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)
}
}
}
func main() {
loop := true
if len(os.Args) < 4 {
fmt.Printf("Too few arguments\n")
return
}
addr := os.Args[1]
user := os.Args[2]
service := os.Args[3]
c := &convenience.Client{}
err := c.Dial("tcp", addr, user, service)
if err != nil {
fmt.Printf("Connect failed: %v\n", err)
return
}
var cmds map[string]func(string)
cmds = map[string]func(string){
"ls": func(s string) {
if s == "" {
s = "/"
}
strs, err := c.List(s)
if err != nil {
fmt.Printf("ls failed: %v\n", err)
return
}
fmt.Printf("%v\n", strs)
},
"cat": func(s string) {
strs, err := c.Read(s)
if err != nil {
fmt.Printf("cat failed: %v\n", err)
return
}
fmt.Printf("%v\n", strs)
},
"get": func(string) {
fmt.Printf("get is not yet implemented\n")
},
"put": func(string) {
fmt.Printf("put is not yet implemented\n")
},
"mkdir": func(s string) {
err := c.Create(s, true)
if err != nil {
fmt.Printf("mkdir failed: %v\n", err)
return
}
},
"rm": func(s string) {
err := c.Remove(s)
if err != nil {
fmt.Printf("rm failed: %v\n", err)
return
}
},
"chmod": func(string) {
fmt.Printf("chmod is not yet implemented\n")
},
"quit": func(string) {
fmt.Printf("bye\n")
loop = false
},
"help": func(string) {
fmt.Printf("Available commands: \n")
for k := range cmds {
fmt.Printf("\t%s\n", k)
}
},
}
completer := readline.NewPrefixCompleter()
for k := range cmds {
completer.Children = append(completer.Children, readline.PcItem(k))
}
rl, err := readline.NewEx(&readline.Config{
Prompt: "9p> ",
AutoComplete: completer,
})
if err != nil {
fmt.Printf("failed to create readline: %v\n", err)
return
}
defer rl.Close()
for loop {
line, err := rl.Readline()
if err != nil { // io.EOF
break
}
idx := strings.Index(line, " ")
var cmd, args string
if idx != -1 {
cmd = line[:idx]
args = line[idx+1:]
} else {
cmd = line
}
f, ok := cmds[cmd]
if !ok {
fmt.Printf("no such command: [%s]\n", cmd)
continue
}
f(args)
}
}
// runInteractive runs the SQL client interactively, presenting
// a prompt to the user for each statement.
func runInteractive(conn *sqlConn, config *readline.Config) (exitErr error) {
fullPrompt, continuePrompt := preparePrompts(conn.url)
ins, err := readline.NewEx(config)
if err != nil {
return err
}
if isInteractive {
// We only enable history management when the terminal is actually
// interactive. This saves on memory when e.g. piping a large SQL
// script through the command-line client.
userAcct, err := user.Current()
if err != nil {
if log.V(2) {
log.Warningf("cannot retrieve user information: %s", err)
log.Info("cannot load or save the command-line history")
}
} else {
histFile := filepath.Join(userAcct.HomeDir, ".cockroachdb_history")
cfg := ins.Config.Clone()
cfg.HistoryFile = histFile
ins.SetConfig(cfg)
}
}
if isInteractive {
fmt.Print(infoMessage)
}
var stmt []string
syntax := parser.Traditional
for isFinished := false; !isFinished; {
thisPrompt := fullPrompt
if !isInteractive {
thisPrompt = ""
} else if len(stmt) > 0 {
thisPrompt = continuePrompt
}
ins.SetPrompt(thisPrompt)
l, err := ins.Readline()
if !isInteractive && err == io.EOF {
// In non-interactive mode, we want EOF to finish the last statement.
err = nil
isFinished = true
}
if err == readline.ErrInterrupt || err == io.EOF {
break
} else if err != nil {
fmt.Fprintf(osStderr, "input error: %s\n", err)
return err
}
// Check if this is a request for help or a client-side command.
// If so, process it directly and skip query processing below.
status, hasSet := handleInputLine(ins, &stmt, l, syntax)
if status == cliExit {
break
} else if status == cliNextLine && !isFinished {
// Ask for more input unless we reached EOF.
continue
} else if isFinished && len(stmt) == 0 {
// Exit if we reached EOF and the currently built-up statement is empty.
break
}
// We join the statements back together with newlines in case
// there is a significant newline inside a string literal. However
// we join with spaces for keeping history, because otherwise a
// history recall will only pull one line from a multi-line
// statement.
fullStmt := strings.Join(stmt, "\n")
// Ensure the statement is terminated with a semicolon. This
// catches cases where the last line before EOF was not terminated
// properly.
if len(fullStmt) > 0 && !strings.HasSuffix(fullStmt, ";") {
fmt.Fprintln(osStderr, "no semicolon at end of statement; statement ignored")
continue
}
if isInteractive {
// We save the history between each statement, This enables
// reusing history in another SQL shell without closing the
// current shell.
addHistory(ins, fullStmt)
}
if exitErr = runQueryAndFormatResults(conn, os.Stdout, makeQuery(fullStmt), cliCtx.prettyFmt); exitErr != nil {
fmt.Fprintln(osStderr, exitErr)
}
// Clear the saved statement.
stmt = stmt[:0]
if hasSet {
newSyntax, err := getSyntax(conn)
if err != nil {
fmt.Fprintf(osStderr, "could not get session syntax: %s", err)
} else {
syntax = newSyntax
}
}
}
return exitErr
}