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61 lines
1.0 KiB
61 lines
1.0 KiB
package main
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import (
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"bufio"
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"fmt"
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"os"
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"github.com/chrislusf/seaweedfs/go/glog"
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)
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func init() {
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cmdShell.Run = runShell // break init cycle
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}
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var cmdShell = &Command{
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UsageLine: "shell",
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Short: "run interactive commands, now just echo",
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Long: `run interactive commands.
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`,
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}
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var ()
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func runShell(command *Command, args []string) bool {
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r := bufio.NewReader(os.Stdin)
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o := bufio.NewWriter(os.Stdout)
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e := bufio.NewWriter(os.Stderr)
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prompt := func() {
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var err error
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if _, err = o.WriteString("> "); err != nil {
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glog.V(0).Infoln("error writing to stdout:", err)
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}
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if err = o.Flush(); err != nil {
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glog.V(0).Infoln("error flushing stdout:", err)
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}
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}
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readLine := func() string {
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ret, err := r.ReadString('\n')
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if err != nil {
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fmt.Fprint(e, err)
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os.Exit(1)
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}
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return ret
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}
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execCmd := func(cmd string) int {
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if cmd != "" {
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if _, err := o.WriteString(cmd); err != nil {
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glog.V(0).Infoln("error writing to stdout:", err)
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}
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}
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return 0
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}
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cmd := ""
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for {
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prompt()
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cmd = readLine()
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execCmd(cmd)
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}
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}
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