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// Copyright 2021 Google LLC
//
// 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
//
// https://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 logging
import (
"flag"
"fmt"
"log"
"os"
goirc_logging "github.com/fluffle/goirc/logging"
)
const (
loggingCallDepth = 3
)
type Logger interface {
Debug(format string, args ...interface{})
Info(format string, args ...interface{})
Warn(format string, args ...interface{})
Error(format string, args ...interface{})
}
var logger Logger
type stdOutLogger struct {
out *log.Logger
}
var debugFlag = flag.Bool("debug", false, "Enable debug logging.")
func (l stdOutLogger) Debug(f string, a ...interface{}) {
if *debugFlag {
l.out.Output(loggingCallDepth, fmt.Sprintf("DEBUG "+f, a...))
}
}
func (l stdOutLogger) Info(f string, a ...interface{}) {
l.out.Output(loggingCallDepth, fmt.Sprintf("INFO "+f, a...))
}
func (l stdOutLogger) Warn(f string, a ...interface{}) {
l.out.Output(loggingCallDepth, fmt.Sprintf("WARN "+f, a...))
}
func (l stdOutLogger) Error(f string, a ...interface{}) {
l.out.Output(loggingCallDepth, fmt.Sprintf("ERROR "+f, a...))
}
func init() {
logger = stdOutLogger{
out: log.New(os.Stderr, "", log.Ldate|log.Lmicroseconds|log.Lshortfile),
}
goirc_logging.SetLogger(logger)
}
func Debug(f string, a ...interface{}) { logger.Debug(f, a...) }
func Info(f string, a ...interface{}) { logger.Info(f, a...) }
func Warn(f string, a ...interface{}) { logger.Warn(f, a...) }
func Error(f string, a ...interface{}) { logger.Error(f, a...) }
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