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adapter.go
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adapter.go
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// Copyright 2023 Chainguard, Inc.
//
// 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"
"os"
"sync"
"github.com/sirupsen/logrus"
)
type Adapter struct {
Out io.Writer
Fields Fields
Level Level
}
var (
// Protects races between logf's e.Logger.Out and Logf writing to it.
// This is probably a false positive, but the race detector hates it.
mu sync.Mutex
concreteLogger = &logrus.Logger{
Out: os.Stderr,
Formatter: &Formatter{},
Hooks: make(logrus.LevelHooks),
Level: logrus.InfoLevel,
}
)
func (a *Adapter) logf(level logrus.Level, format string, args ...interface{}) {
mu.Lock()
defer mu.Unlock()
e := concreteLogger.WithFields(logrus.Fields(a.Fields))
e.Logger.SetLevel(logrus.Level(a.Level))
e.Logger.Out = a.Out
e.Logf(level, format, args...)
}
func (a *Adapter) exit(exitCode int) {
cl := concreteLogger
cl.Exit(exitCode)
}
func (a *Adapter) Debugf(fmt string, args ...interface{}) {
a.logf(logrus.DebugLevel, fmt, args...)
}
func (a *Adapter) Fatalf(fmt string, args ...interface{}) {
a.logf(logrus.FatalLevel, fmt, args...)
a.exit(1)
}
func (a *Adapter) Infof(fmt string, args ...interface{}) {
a.logf(logrus.InfoLevel, fmt, args...)
}
func (a *Adapter) Printf(fmt string, args ...interface{}) {
a.logf(logrus.InfoLevel, fmt, args...)
}
func (a *Adapter) Warnf(fmt string, args ...interface{}) {
a.logf(logrus.WarnLevel, fmt, args...)
}
func (a *Adapter) Errorf(fmt string, args ...interface{}) {
a.logf(logrus.ErrorLevel, fmt, args...)
}
func (a *Adapter) SetLevel(level Level) {
a.Level = level
}
func (a *Adapter) WithFields(fields Fields) Logger {
out := *a
out.Fields = fields
return &out
}
func NewLogger(out io.Writer) Logger {
return &Adapter{Out: out, Level: InfoLevel}
}
func DefaultLogger() Logger {
return NewLogger(os.Stderr)
}