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ctlv3: handle pkg/flags warnings 

Signed-off-by: Gyuho Lee <gyuhox@gmail.com>
release-3.4
Gyuho Lee 2018-01-14 01:59:46 -08:00
parent 57284aac28
commit 388b7fece6
1 changed files with 11 additions and 0 deletions
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11
etcdctl/ctlv3/command/global.go
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@ -101,8 +101,19 @@ type clientConfig struct {
acfg *authCfg
}
type discardValue struct{}
func (*discardValue) String() string { return "" }
func (*discardValue) Set(string) error { return nil }
func (*discardValue) Type() string { return "" }
func clientConfigFromCmd(cmd *cobra.Command) *clientConfig {
fs := cmd.InheritedFlags()
// silence "pkg/flags: unrecognized environment variable ETCDCTL_WATCH_KEY=foo" warnings
// silence "pkg/flags: unrecognized environment variable ETCDCTL_WATCH_RANGE_END=bar" warnings
fs.AddFlag(&pflag.Flag{Name: "watch-key", Value: &discardValue{}})
fs.AddFlag(&pflag.Flag{Name: "watch-range-end", Value: &discardValue{}})
flags.SetPflagsFromEnv("ETCDCTL", fs)
debug, err := cmd.Flags().GetBool("debug")