etcdctl: fix interactive mode panic
Don't panic if command is given in interactive mode, give a nice error message instead. Before: $ ./bin/etcdctl watch -i <hit return> panic: runtime error: index out of range goroutine 1 [running]: etcdctl/ctlv3/command.watchInteractiveFunc(...) etcd/etcdctl/ctlv3/command/watch_command.go:104 ... After: $ ./bin/etcdctl watch -i <hit return> Invalid command: (watch and progress supported) foo Invalid command foo (only support watch)release-3.4
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1eee465a43
commit
36d7acf330
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@ -101,6 +101,10 @@ func watchInteractiveFunc(cmd *cobra.Command, osArgs []string, envKey, envRange
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l = strings.TrimSuffix(l, "\n")
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args := argify(l)
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if len(args) < 1 {
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fmt.Fprintf(os.Stderr, "Invalid command: %s (watch and progress supported)\n", l)
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continue
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}
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switch args[0] {
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case "watch":
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if len(args) < 2 && envKey == "" {
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