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logging.go
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logging.go
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package configure
import (
"fmt"
"github.com/JieTrancender/nsq_consumer/libconsumer/common"
"github.com/JieTrancender/nsq_consumer/libconsumer/logp"
"github.com/spf13/pflag"
)
var (
verbose bool
toStderr bool
environment logp.Environment
)
type environmentVar logp.Environment
func init() {
pflag.BoolVar(&verbose, "verbose", false, "Log at INFO level")
pflag.BoolVar(&toStderr, "toStderr", false, "Log to stderr and disable syslog/file output")
pflag.Var((*environmentVar)(&environment), "environment", "set environment being ran in")
}
// Logging builds a logp.Config based on the given common.Config and the specified CLI flags.
func Logging(consumerName string, cfg *common.Config) error {
fmt.Println("Logging", consumerName, environment)
config := logp.DefaultConfig(environment)
config.Consumer = consumerName
if cfg != nil {
if err := cfg.Unpack(&config); err != nil {
return err
}
}
applyFlags(&config)
return logp.Configure(config)
}
func applyFlags(cfg *logp.Config) {
if toStderr {
cfg.ToStderr = true
}
if cfg.Level > logp.InfoLevel && verbose {
cfg.Level = logp.InfoLevel
}
}
func (v *environmentVar) Set(in string) error {
env := logp.ParseEnvironment(in)
if env == logp.InvalidEnvironment {
return fmt.Errorf("'%v' is not supported", in)
}
*(*logp.Environment)(v) = env
return nil
}
func (v *environmentVar) String() string {
return (*logp.Environment)(v).String()
}
func (v *environmentVar) Type() string {
return (*logp.Environment)(v).Type()
}