github.com/datadog/cilium@v1.6.12/pkg/logging/debugdetection.go (about)

     1  // Copyright 2017-2019 Authors of Cilium
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package logging
    16  
    17  import (
    18  	"io/ioutil"
    19  	"os"
    20  
    21  	"github.com/sirupsen/logrus"
    22  	flag "github.com/spf13/pflag"
    23  	"github.com/spf13/viper"
    24  )
    25  
    26  func init() {
    27  	flags := flag.NewFlagSet("init-debug", flag.ContinueOnError)
    28  	flags.Usage = func() {}
    29  	flags.SetOutput(ioutil.Discard)
    30  
    31  	debug := flags.Bool("debug", false, "")
    32  	flags.Parse(os.Args)
    33  
    34  	if *debug || viper.GetBool("debug") {
    35  		DefaultLogger.SetLevel(logrus.DebugLevel)
    36  	}
    37  }