pkg/util: move trace.go to k8s.io/apiserver/pkg/util/trace

pkg/util/trace.go

@@ -1,72 +0,0 @@
-/*
-Copyright 2015 The Kubernetes Authors.
-
-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 util
-
-import (
-	"bytes"
-	"fmt"
-	"time"
-
-	"github.com/golang/glog"
-)
-
-type traceStep struct {
-	stepTime time.Time
-	msg      string
-}
-
-type Trace struct {
-	name      string
-	startTime time.Time
-	steps     []traceStep
-}
-
-func NewTrace(name string) *Trace {
-	return &Trace{name, time.Now(), nil}
-}
-
-func (t *Trace) Step(msg string) {
-	if t.steps == nil {
-		// traces almost always have less than 6 steps, do this to avoid more than a single allocation
-		t.steps = make([]traceStep, 0, 6)
-	}
-	t.steps = append(t.steps, traceStep{time.Now(), msg})
-}
-
-func (t *Trace) Log() {
-	endTime := time.Now()
-	var buffer bytes.Buffer
-
-	buffer.WriteString(fmt.Sprintf("Trace %q (started %v):\n", t.name, t.startTime))
-	lastStepTime := t.startTime
-	for _, step := range t.steps {
-		buffer.WriteString(fmt.Sprintf("[%v] [%v] %v\n", step.stepTime.Sub(t.startTime), step.stepTime.Sub(lastStepTime), step.msg))
-		lastStepTime = step.stepTime
-	}
-	buffer.WriteString(fmt.Sprintf("[%v] [%v] END\n", endTime.Sub(t.startTime), endTime.Sub(lastStepTime)))
-	glog.Info(buffer.String())
-}
-
-func (t *Trace) LogIfLong(threshold time.Duration) {
-	if time.Since(t.startTime) >= threshold {
-		t.Log()
-	}
-}
-
-func (t *Trace) TotalTime() time.Duration {
-	return time.Since(t.startTime)
-}