diff --git a/caller.go b/caller.go
new file mode 100644
index 0000000..a7c53af
--- /dev/null
+++ b/caller.go
@@ -0,0 +1,105 @@
+package logger
+
+import (
+	"runtime"
+	"strings"
+	"sync"
+
+	"github.com/sirupsen/logrus"
+)
+
+var (
+
+	// qualified package name, cached at first use
+	logrusPackage string
+
+	// Positions in the call stack when tracing to report the calling method
+	minimumCallerDepth int
+
+	// Used for caller information initialisation
+	callerInitOnce sync.Once
+)
+
+const (
+	maximumCallerDepth int = 25
+	knownLogrusFrames  int = 8
+)
+
+func init() {
+	// start at the bottom of the stack before the package-name cache is primed
+	minimumCallerDepth = 1
+}
+
+// getPackageName reduces a fully qualified function name to the package name
+// There really ought to be to be a better way...
+func getPackageName(f string) string {
+	for {
+		lastPeriod := strings.LastIndex(f, ".")
+		lastSlash := strings.LastIndex(f, "/")
+		if lastPeriod > lastSlash {
+			f = f[:lastPeriod]
+		} else {
+			break
+		}
+	}
+
+	return f
+}
+
+// getCaller retrieves the name of the first non-logrus calling function
+func getCaller() *runtime.Frame {
+	// cache this package's fully-qualified name
+	callerInitOnce.Do(func() {
+		pcs := make([]uintptr, maximumCallerDepth)
+		_ = runtime.Callers(0, pcs)
+
+		// dynamic get the package name and the minimum caller depth
+		for i := 0; i < maximumCallerDepth; i++ {
+			funcName := runtime.FuncForPC(pcs[i]).Name()
+			if strings.Contains(funcName, "getCaller") {
+				logrusPackage = getPackageName(funcName)
+				break
+			}
+		}
+
+		minimumCallerDepth = knownLogrusFrames
+	})
+
+	// Restrict the lookback frames to avoid runaway lookups
+	pcs := make([]uintptr, maximumCallerDepth)
+	depth := runtime.Callers(minimumCallerDepth, pcs)
+	frames := runtime.CallersFrames(pcs[:depth])
+
+	for f, again := frames.Next(); again; f, again = frames.Next() {
+		pkg := getPackageName(f.Function)
+
+		// If the caller isn't part of this package, we're done
+		if pkg != logrusPackage && pkg != "github.com/sirupsen/logrus" {
+			return &f //nolint:scopelint
+		}
+	}
+
+	// if we got here, we failed to find the caller's context
+	return nil
+}
+
+// CallerHook is a hook designed for dealing with logs in test scenarios.
+type CallerHook struct{}
+
+// NewCallerHook installs a test hook for a given local logger.
+func NewCallerHook(logger *logrus.Logger) *CallerHook {
+	hook := new(CallerHook)
+	logger.Hooks.Add(hook)
+	return hook
+}
+
+func (t *CallerHook) Fire(e *logrus.Entry) error {
+	if e.HasCaller() {
+		e.Caller = getCaller()
+	}
+	return nil
+}
+
+func (t *CallerHook) Levels() []logrus.Level {
+	return logrus.AllLevels
+}
diff --git a/go.mod b/go.mod
index dff1c37..80b0496 100644
--- a/go.mod
+++ b/go.mod
@@ -5,11 +5,10 @@ go 1.17
 require (
 	github.com/caarlos0/env/v6 v6.9.2
 	github.com/go-kit/kit v0.12.0
-	github.com/lixh00/loki-client-go v1.0.1
+	git.echol.cn/loser/loki-client-go v1.0.1
 	github.com/natefinch/lumberjack v2.0.0+incompatible
 	github.com/prometheus/common v0.34.0
 	go.uber.org/zap v1.21.0
-	gorm.io/driver/mysql v1.3.2
 	gorm.io/gorm v1.23.5
 )
 
diff --git a/log/say.go b/log/say.go
index ee76012..7e6e5fe 100644
--- a/log/say.go
+++ b/log/say.go
@@ -1,6 +1,9 @@
 package log
 
-import "go.uber.org/zap"
+import (
+	"encoding/json"
+	"go.uber.org/zap"
+)
 
 // Debug uses fmt.Sprint to construct and log a message.
 func Debug(args ...interface{}) {
@@ -73,3 +76,10 @@ func Fatalf(template string, args ...interface{}) {
 	defer zap.S().Sync()
 	zap.S().Fatalf(template, args...)
 }
+
+// Pretty provides pretty trace level logging
+func Pretty(v ...interface{}) {
+	b, _ := json.MarshalIndent(v, "", "  ")
+	defer zap.S().Sync()
+	zap.S().Info(string(b))
+}
diff --git a/loki.go b/loki.go
index 718b3e5..d4fa7d2 100644
--- a/loki.go
+++ b/loki.go
@@ -4,8 +4,8 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"git.echol.cn/loser/loki-client-go/loki"
 	"github.com/go-kit/kit/log"
-	"github.com/lixh00/loki-client-go/loki"
 	"github.com/prometheus/common/model"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"