/
log.go
134 lines (108 loc) · 2.65 KB
/
log.go
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// Copyright (c) 2015-2021, NVIDIA CORPORATION.
// SPDX-License-Identifier: Apache-2.0
package imgrpkg
import (
"fmt"
"log"
"os"
"runtime"
"time"
)
type logLoggerIOWriterStruct struct {
tag string
enabled bool
}
func logLoggerNew(tag string, enabled bool) (logLogger *log.Logger) {
logLogger = log.New(&logLoggerIOWriterStruct{tag: tag, enabled: enabled}, "", log.Lshortfile)
return
}
func (logLoggerIOWriter *logLoggerIOWriterStruct) Write(p []byte) (n int, err error) {
if logLoggerIOWriter.enabled {
logf(logLoggerIOWriter.tag, "%s", string(p[:]))
}
return len(p), nil
}
func logFatal(err error) {
logf("FATAL", "%v", err)
logStack()
os.Exit(1)
}
func logFatalf(format string, args ...interface{}) {
logf("FATAL", format, args...)
logStack()
os.Exit(1)
}
func logError(err error) {
logf("ERROR", "%v", err)
}
func logErrorf(format string, args ...interface{}) {
logf("ERROR", format, args...)
}
func logWarn(err error) {
logf("WARN", "%v", err)
}
func logWarnf(format string, args ...interface{}) {
logf("WARN", format, args...)
}
func logInfo(err error) {
logf("INFO", "%v", err)
}
func logInfof(format string, args ...interface{}) {
logf("INFO", format, args...)
}
func logTrace(err error) {
if globals.config.TraceEnabled {
logf("TRACE", "%v", err)
}
}
func logTracef(format string, args ...interface{}) {
if globals.config.TraceEnabled {
logf("TRACE", format, args...)
}
}
func logStack() {
const (
runtimeStackBufSize = 65536
)
var (
runtimeStackBuf []byte
runtimeStackBufUsed int
runtimeStackString string
)
runtimeStackBuf = make([]byte, runtimeStackBufSize)
runtimeStackBufUsed = runtime.Stack(runtimeStackBuf, true)
runtimeStackString = string(runtimeStackBuf[:runtimeStackBufUsed])
logf("STACK", "\n%s", runtimeStackString)
}
func logf(level string, format string, args ...interface{}) {
var (
enhancedArgs []interface{}
enhancedFormat string
err error
logMsg string
)
enhancedFormat = "[%s][%s] " + format
enhancedArgs = append([]interface{}{time.Now().Format(time.RFC3339Nano), level}, args...)
logMsg = fmt.Sprintf(enhancedFormat, enhancedArgs[:]...)
if globals.logFile == nil {
if globals.config.LogFilePath != "" {
globals.logFile, err = os.OpenFile(globals.config.LogFilePath, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0666)
if err == nil {
_, _ = globals.logFile.WriteString(logMsg + "\n")
} else {
globals.logFile = nil
}
}
} else {
globals.logFile.WriteString(logMsg + "\n")
}
if globals.config.LogToConsole {
fmt.Println(logMsg)
}
}
func logSIGHUP() {
if globals.logFile != nil {
_ = globals.logFile.Close()
globals.logFile = nil
}
}