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log.go
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log.go
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// Copyright © 2021 Cisco Systems, Inc. and its affiliates.
// All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package log
import (
"io"
log "github.com/sirupsen/logrus"
"github.com/urfave/cli"
)
const (
LogLevelFlag = "log-level"
LogLevelDefaultValue = "warning"
LogLevelFlagUsage = "Sets the logging level (debug, info, warning, error, fatal, panic)"
)
func InitLogs(c *cli.Context, output io.Writer) {
formatter := log.TextFormatter{
FullTimestamp: true,
DisableTimestamp: false,
DisableSorting: true,
DisableLevelTruncation: true,
QuoteEmptyFields: true,
}
log.SetFormatter(&formatter)
log.SetReportCaller(true)
log.SetOutput(output)
// use cmd level if provided
logLevel := c.String(LogLevelFlag)
// Only logs with this severity or above will be issued.
level, err := log.ParseLevel(logLevel)
if err != nil {
log.Errorf("invalid log level, setting to be warning: %v", err)
log.SetLevel(log.WarnLevel)
} else {
log.SetLevel(level)
}
}