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logger.go
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logger.go
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package logger
import (
"context"
"fmt"
"log"
"os"
"path/filepath"
"time"
"github.com/SafetyCulture/safetyculture-exporter/internal/app/version"
"github.com/SafetyCulture/safetyculture-exporter/pkg/internal/diagnostics"
"github.com/pkg/errors"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
"gorm.io/gorm"
"gorm.io/gorm/logger"
"gorm.io/gorm/utils"
)
var (
infoStr = "%s\n[info] "
warnStr = "%s\n[warn] "
errStr = "%s\n[error] "
traceStr = "%s\n[%.3fms] [rows:%v] %s"
traceWarnStr = "%s %s\n[%.3fms] [rows:%v] %s"
traceErrStr = "%s %s\n[%.3fms] [rows:%v] %s"
trace = false
)
// GormLogger wraps logger with some gorm specific functionality
type GormLogger struct {
*zap.SugaredLogger
SlowThreshold time.Duration
}
// LogMode log mode.
func (l *GormLogger) LogMode(logger.LogLevel) logger.Interface {
newlogger := *l
return &newlogger
}
// Info print info.
func (l GormLogger) Info(_ context.Context, msg string, data ...interface{}) {
l.Infof(infoStr+msg, append([]interface{}{utils.FileWithLineNum()}, data...)...)
}
// Warn print warn messages.
func (l GormLogger) Warn(_ context.Context, msg string, data ...interface{}) {
l.Warnf(warnStr+msg, append([]interface{}{utils.FileWithLineNum()}, data...)...)
}
// Error print error messages.
func (l GormLogger) Error(_ context.Context, msg string, data ...interface{}) {
l.Errorf(errStr+msg, append([]interface{}{utils.FileWithLineNum()}, data...)...)
}
// Trace print sql message.
func (l GormLogger) Trace(_ context.Context, begin time.Time, fc func() (string, int64), err error) {
// do not log ErrRecordNotFound errors
if errors.Is(err, gorm.ErrRecordNotFound) {
return
}
elapsed := time.Since(begin)
switch {
case err != nil:
sql, rows := fc()
if rows == -1 {
l.Errorf(traceErrStr, utils.FileWithLineNum(), err, float64(elapsed.Nanoseconds())/1e6, "-", sql)
} else {
l.Errorf(traceErrStr, utils.FileWithLineNum(), err, float64(elapsed.Nanoseconds())/1e6, rows, sql)
}
case elapsed > l.SlowThreshold && l.SlowThreshold != 0:
sql, rows := fc()
slowLog := fmt.Sprintf("SLOW SQL >= %v", l.SlowThreshold)
if rows == -1 {
l.Debugf(traceWarnStr, utils.FileWithLineNum(), slowLog, float64(elapsed.Nanoseconds())/1e6, "-", sql)
} else {
l.Debugf(traceWarnStr, utils.FileWithLineNum(), slowLog, float64(elapsed.Nanoseconds())/1e6, rows, sql)
}
default:
if !trace {
return
}
sql, rows := fc()
if rows == -1 {
l.Debugf(traceStr, utils.FileWithLineNum(), "-", sql)
} else {
l.Debugf(traceStr, utils.FileWithLineNum(), rows, sql)
}
}
}
var slg *zap.SugaredLogger
func getLogger(cores ...zapcore.Core) *zap.SugaredLogger {
// Log to both console and the log file. This allows for succinct console logs and
// Verbose detailed logs to review is something goes wrong.
core := zapcore.NewTee(
cores...,
)
// From a zapcore.Core, it's easy to construct a Logger.
l := zap.New(core).Named(version.GetIntegrationID())
defer l.Sync()
// redirects output from the standard library's package-global logger to the supplied logger
zap.RedirectStdLog(l)
slg := l.Sugar().
With(
"version", version.GetVersion(),
"pid", os.Getpid(),
"uid", os.Getuid(),
)
if sysInfo, err := diagnostics.GetSysInfo(); err != nil {
slg.With("err", err).Error("failed to get system info")
} else {
slg.With("sys_info", sysInfo).
Debug("system info")
}
return slg
}
// GetLogger returns a configured instance of the logger
func GetLogger() *zap.SugaredLogger {
if slg != nil {
return slg
}
prodConfig := zap.NewProductionEncoderConfig()
prodConfig.EncodeTime = zapcore.ISO8601TimeEncoder
logFileEncoder := zapcore.NewJSONEncoder(prodConfig)
consoleEncoder := zapcore.NewConsoleEncoder(zap.NewDevelopmentEncoderConfig())
logName := fmt.Sprintf("sc-exporter-%s.log", time.Now().Format(time.DateOnly))
file, err := os.OpenFile(logName, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
if err != nil {
log.Fatalf("unable to open log file %v", err)
}
logFileWriter := zapcore.Lock(file)
consoleWriter := zapcore.Lock(os.Stderr)
slg = getLogger(
zapcore.NewCore(consoleEncoder, consoleWriter, zap.InfoLevel),
zapcore.NewCore(logFileEncoder, logFileWriter, zap.DebugLevel),
)
return slg
}
// GetExporterLogger returns a configured instance of the logger (used by the UI)
func GetExporterLogger(path string) *ExporterLogger {
if slg != nil {
return &ExporterLogger{
l: slg,
}
}
prodConfig := zap.NewProductionEncoderConfig()
prodConfig.EncodeTime = zapcore.ISO8601TimeEncoder
logFileEncoder := zapcore.NewJSONEncoder(prodConfig)
logName := fmt.Sprintf("sc-exporter-%s.log", time.Now().Format(time.DateOnly))
file, err := os.OpenFile(filepath.Join(path, logName), os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
if err != nil {
log.Fatalf("unable to open log file %v", err)
}
logFileWriter := zapcore.Lock(file)
slg = getLogger(zapcore.NewCore(logFileEncoder, logFileWriter, zap.DebugLevel))
return &ExporterLogger{
l: slg,
}
}
// ExporterLogger wraps sugared logged into an interface compatible for Wails
type ExporterLogger struct {
l *zap.SugaredLogger
}
func (logger *ExporterLogger) Debug(message string) {
logger.l.Debugln(message)
}
func (logger *ExporterLogger) Info(message string) {
logger.l.Infoln(message)
}
func (logger *ExporterLogger) Warning(message string) {
logger.l.Warnln(message)
}
func (logger *ExporterLogger) Error(message string) {
logger.l.Errorln(message)
}
func (logger *ExporterLogger) Fatal(message string) {
logger.l.Fatalln(message)
}
func (logger *ExporterLogger) Print(string) {
panic("don't use print")
}
func (logger *ExporterLogger) Trace(string) {
// unimplemented
panic("don't use trace")
}