1 files changed, 0 insertions, 472 deletions
diff --git a/vendor/github.com/prometheus/client_golang/prometheus/vec.go b/vendor/github.com/prometheus/client_golang/prometheus/vec.go
deleted file mode 100644
index 14ed9e8..0000000
--- a/vendor/github.com/prometheus/client_golang/prometheus/vec.go
+++ /dev/null
@@ -1,472 +0,0 @@
-// Copyright 2014 The Prometheus 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 prometheus
-
-import (
-	"fmt"
-	"sync"
-
-	"github.com/prometheus/common/model"
-)
-
-// metricVec is a Collector to bundle metrics of the same name that differ in
-// their label values. metricVec is not used directly (and therefore
-// unexported). It is used as a building block for implementations of vectors of
-// a given metric type, like GaugeVec, CounterVec, SummaryVec, and HistogramVec.
-// It also handles label currying. It uses basicMetricVec internally.
-type metricVec struct {
-	*metricMap
-
-	curry []curriedLabelValue
-
-	// hashAdd and hashAddByte can be replaced for testing collision handling.
-	hashAdd     func(h uint64, s string) uint64
-	hashAddByte func(h uint64, b byte) uint64
-}
-
-// newMetricVec returns an initialized metricVec.
-func newMetricVec(desc *Desc, newMetric func(lvs ...string) Metric) *metricVec {
-	return &metricVec{
-		metricMap: &metricMap{
-			metrics:   map[uint64][]metricWithLabelValues{},
-			desc:      desc,
-			newMetric: newMetric,
-		},
-		hashAdd:     hashAdd,
-		hashAddByte: hashAddByte,
-	}
-}
-
-// DeleteLabelValues removes the metric where the variable labels are the same
-// as those passed in as labels (same order as the VariableLabels in Desc). It
-// returns true if a metric was deleted.
-//
-// It is not an error if the number of label values is not the same as the
-// number of VariableLabels in Desc. However, such inconsistent label count can
-// never match an actual metric, so the method will always return false in that
-// case.
-//
-// Note that for more than one label value, this method is prone to mistakes
-// caused by an incorrect order of arguments. Consider Delete(Labels) as an
-// alternative to avoid that type of mistake. For higher label numbers, the
-// latter has a much more readable (albeit more verbose) syntax, but it comes
-// with a performance overhead (for creating and processing the Labels map).
-// See also the CounterVec example.
-func (m *metricVec) DeleteLabelValues(lvs ...string) bool {
-	h, err := m.hashLabelValues(lvs)
-	if err != nil {
-		return false
-	}
-
-	return m.metricMap.deleteByHashWithLabelValues(h, lvs, m.curry)
-}
-
-// Delete deletes the metric where the variable labels are the same as those
-// passed in as labels. It returns true if a metric was deleted.
-//
-// It is not an error if the number and names of the Labels are inconsistent
-// with those of the VariableLabels in Desc. However, such inconsistent Labels
-// can never match an actual metric, so the method will always return false in
-// that case.
-//
-// This method is used for the same purpose as DeleteLabelValues(...string). See
-// there for pros and cons of the two methods.
-func (m *metricVec) Delete(labels Labels) bool {
-	h, err := m.hashLabels(labels)
-	if err != nil {
-		return false
-	}
-
-	return m.metricMap.deleteByHashWithLabels(h, labels, m.curry)
-}
-
-func (m *metricVec) curryWith(labels Labels) (*metricVec, error) {
-	var (
-		newCurry []curriedLabelValue
-		oldCurry = m.curry
-		iCurry   int
-	)
-	for i, label := range m.desc.variableLabels {
-		val, ok := labels[label]
-		if iCurry < len(oldCurry) && oldCurry[iCurry].index == i {
-			if ok {
-				return nil, fmt.Errorf("label name %q is already curried", label)
-			}
-			newCurry = append(newCurry, oldCurry[iCurry])
-			iCurry++
-		} else {
-			if !ok {
-				continue // Label stays uncurried.
-			}
-			newCurry = append(newCurry, curriedLabelValue{i, val})
-		}
-	}
-	if l := len(oldCurry) + len(labels) - len(newCurry); l > 0 {
-		return nil, fmt.Errorf("%d unknown label(s) found during currying", l)
-	}
-
-	return &metricVec{
-		metricMap:   m.metricMap,
-		curry:       newCurry,
-		hashAdd:     m.hashAdd,
-		hashAddByte: m.hashAddByte,
-	}, nil
-}
-
-func (m *metricVec) getMetricWithLabelValues(lvs ...string) (Metric, error) {
-	h, err := m.hashLabelValues(lvs)
-	if err != nil {
-		return nil, err
-	}
-
-	return m.metricMap.getOrCreateMetricWithLabelValues(h, lvs, m.curry), nil
-}
-
-func (m *metricVec) getMetricWith(labels Labels) (Metric, error) {
-	h, err := m.hashLabels(labels)
-	if err != nil {
-		return nil, err
-	}
-
-	return m.metricMap.getOrCreateMetricWithLabels(h, labels, m.curry), nil
-}
-
-func (m *metricVec) hashLabelValues(vals []string) (uint64, error) {
-	if err := validateLabelValues(vals, len(m.desc.variableLabels)-len(m.curry)); err != nil {
-		return 0, err
-	}
-
-	var (
-		h             = hashNew()
-		curry         = m.curry
-		iVals, iCurry int
-	)
-	for i := 0; i < len(m.desc.variableLabels); i++ {
-		if iCurry < len(curry) && curry[iCurry].index == i {
-			h = m.hashAdd(h, curry[iCurry].value)
-			iCurry++
-		} else {
-			h = m.hashAdd(h, vals[iVals])
-			iVals++
-		}
-		h = m.hashAddByte(h, model.SeparatorByte)
-	}
-	return h, nil
-}
-
-func (m *metricVec) hashLabels(labels Labels) (uint64, error) {
-	if err := validateValuesInLabels(labels, len(m.desc.variableLabels)-len(m.curry)); err != nil {
-		return 0, err
-	}
-
-	var (
-		h      = hashNew()
-		curry  = m.curry
-		iCurry int
-	)
-	for i, label := range m.desc.variableLabels {
-		val, ok := labels[label]
-		if iCurry < len(curry) && curry[iCurry].index == i {
-			if ok {
-				return 0, fmt.Errorf("label name %q is already curried", label)
-			}
-			h = m.hashAdd(h, curry[iCurry].value)
-			iCurry++
-		} else {
-			if !ok {
-				return 0, fmt.Errorf("label name %q missing in label map", label)
-			}
-			h = m.hashAdd(h, val)
-		}
-		h = m.hashAddByte(h, model.SeparatorByte)
-	}
-	return h, nil
-}
-
-// metricWithLabelValues provides the metric and its label values for
-// disambiguation on hash collision.
-type metricWithLabelValues struct {
-	values []string
-	metric Metric
-}
-
-// curriedLabelValue sets the curried value for a label at the given index.
-type curriedLabelValue struct {
-	index int
-	value string
-}
-
-// metricMap is a helper for metricVec and shared between differently curried
-// metricVecs.
-type metricMap struct {
-	mtx       sync.RWMutex // Protects metrics.
-	metrics   map[uint64][]metricWithLabelValues
-	desc      *Desc
-	newMetric func(labelValues ...string) Metric
-}
-
-// Describe implements Collector. It will send exactly one Desc to the provided
-// channel.
-func (m *metricMap) Describe(ch chan<- *Desc) {
-	ch <- m.desc
-}
-
-// Collect implements Collector.
-func (m *metricMap) Collect(ch chan<- Metric) {
-	m.mtx.RLock()
-	defer m.mtx.RUnlock()
-
-	for _, metrics := range m.metrics {
-		for _, metric := range metrics {
-			ch <- metric.metric
-		}
-	}
-}
-
-// Reset deletes all metrics in this vector.
-func (m *metricMap) Reset() {
-	m.mtx.Lock()
-	defer m.mtx.Unlock()
-
-	for h := range m.metrics {
-		delete(m.metrics, h)
-	}
-}
-
-// deleteByHashWithLabelValues removes the metric from the hash bucket h. If
-// there are multiple matches in the bucket, use lvs to select a metric and
-// remove only that metric.
-func (m *metricMap) deleteByHashWithLabelValues(
-	h uint64, lvs []string, curry []curriedLabelValue,
-) bool {
-	m.mtx.Lock()
-	defer m.mtx.Unlock()
-
-	metrics, ok := m.metrics[h]
-	if !ok {
-		return false
-	}
-
-	i := findMetricWithLabelValues(metrics, lvs, curry)
-	if i >= len(metrics) {
-		return false
-	}
-
-	if len(metrics) > 1 {
-		m.metrics[h] = append(metrics[:i], metrics[i+1:]...)
-	} else {
-		delete(m.metrics, h)
-	}
-	return true
-}
-
-// deleteByHashWithLabels removes the metric from the hash bucket h. If there
-// are multiple matches in the bucket, use lvs to select a metric and remove
-// only that metric.
-func (m *metricMap) deleteByHashWithLabels(
-	h uint64, labels Labels, curry []curriedLabelValue,
-) bool {
-	m.mtx.Lock()
-	defer m.mtx.Unlock()
-
-	metrics, ok := m.metrics[h]
-	if !ok {
-		return false
-	}
-	i := findMetricWithLabels(m.desc, metrics, labels, curry)
-	if i >= len(metrics) {
-		return false
-	}
-
-	if len(metrics) > 1 {
-		m.metrics[h] = append(metrics[:i], metrics[i+1:]...)
-	} else {
-		delete(m.metrics, h)
-	}
-	return true
-}
-
-// getOrCreateMetricWithLabelValues retrieves the metric by hash and label value
-// or creates it and returns the new one.
-//
-// This function holds the mutex.
-func (m *metricMap) getOrCreateMetricWithLabelValues(
-	hash uint64, lvs []string, curry []curriedLabelValue,
-) Metric {
-	m.mtx.RLock()
-	metric, ok := m.getMetricWithHashAndLabelValues(hash, lvs, curry)
-	m.mtx.RUnlock()
-	if ok {
-		return metric
-	}
-
-	m.mtx.Lock()
-	defer m.mtx.Unlock()
-	metric, ok = m.getMetricWithHashAndLabelValues(hash, lvs, curry)
-	if !ok {
-		inlinedLVs := inlineLabelValues(lvs, curry)
-		metric = m.newMetric(inlinedLVs...)
-		m.metrics[hash] = append(m.metrics[hash], metricWithLabelValues{values: inlinedLVs, metric: metric})
-	}
-	return metric
-}
-
-// getOrCreateMetricWithLabelValues retrieves the metric by hash and label value
-// or creates it and returns the new one.
-//
-// This function holds the mutex.
-func (m *metricMap) getOrCreateMetricWithLabels(
-	hash uint64, labels Labels, curry []curriedLabelValue,
-) Metric {
-	m.mtx.RLock()
-	metric, ok := m.getMetricWithHashAndLabels(hash, labels, curry)
-	m.mtx.RUnlock()
-	if ok {
-		return metric
-	}
-
-	m.mtx.Lock()
-	defer m.mtx.Unlock()
-	metric, ok = m.getMetricWithHashAndLabels(hash, labels, curry)
-	if !ok {
-		lvs := extractLabelValues(m.desc, labels, curry)
-		metric = m.newMetric(lvs...)
-		m.metrics[hash] = append(m.metrics[hash], metricWithLabelValues{values: lvs, metric: metric})
-	}
-	return metric
-}
-
-// getMetricWithHashAndLabelValues gets a metric while handling possible
-// collisions in the hash space. Must be called while holding the read mutex.
-func (m *metricMap) getMetricWithHashAndLabelValues(
-	h uint64, lvs []string, curry []curriedLabelValue,
-) (Metric, bool) {
-	metrics, ok := m.metrics[h]
-	if ok {
-		if i := findMetricWithLabelValues(metrics, lvs, curry); i < len(metrics) {
-			return metrics[i].metric, true
-		}
-	}
-	return nil, false
-}
-
-// getMetricWithHashAndLabels gets a metric while handling possible collisions in
-// the hash space. Must be called while holding read mutex.
-func (m *metricMap) getMetricWithHashAndLabels(
-	h uint64, labels Labels, curry []curriedLabelValue,
-) (Metric, bool) {
-	metrics, ok := m.metrics[h]
-	if ok {
-		if i := findMetricWithLabels(m.desc, metrics, labels, curry); i < len(metrics) {
-			return metrics[i].metric, true
-		}
-	}
-	return nil, false
-}
-
-// findMetricWithLabelValues returns the index of the matching metric or
-// len(metrics) if not found.
-func findMetricWithLabelValues(
-	metrics []metricWithLabelValues, lvs []string, curry []curriedLabelValue,
-) int {
-	for i, metric := range metrics {
-		if matchLabelValues(metric.values, lvs, curry) {
-			return i
-		}
-	}
-	return len(metrics)
-}
-
-// findMetricWithLabels returns the index of the matching metric or len(metrics)
-// if not found.
-func findMetricWithLabels(
-	desc *Desc, metrics []metricWithLabelValues, labels Labels, curry []curriedLabelValue,
-) int {
-	for i, metric := range metrics {
-		if matchLabels(desc, metric.values, labels, curry) {
-			return i
-		}
-	}
-	return len(metrics)
-}
-
-func matchLabelValues(values []string, lvs []string, curry []curriedLabelValue) bool {
-	if len(values) != len(lvs)+len(curry) {
-		return false
-	}
-	var iLVs, iCurry int
-	for i, v := range values {
-		if iCurry < len(curry) && curry[iCurry].index == i {
-			if v != curry[iCurry].value {
-				return false
-			}
-			iCurry++
-			continue
-		}
-		if v != lvs[iLVs] {
-			return false
-		}
-		iLVs++
-	}
-	return true
-}
-
-func matchLabels(desc *Desc, values []string, labels Labels, curry []curriedLabelValue) bool {
-	if len(values) != len(labels)+len(curry) {
-		return false
-	}
-	iCurry := 0
-	for i, k := range desc.variableLabels {
-		if iCurry < len(curry) && curry[iCurry].index == i {
-			if values[i] != curry[iCurry].value {
-				return false
-			}
-			iCurry++
-			continue
-		}
-		if values[i] != labels[k] {
-			return false
-		}
-	}
-	return true
-}
-
-func extractLabelValues(desc *Desc, labels Labels, curry []curriedLabelValue) []string {
-	labelValues := make([]string, len(labels)+len(curry))
-	iCurry := 0
-	for i, k := range desc.variableLabels {
-		if iCurry < len(curry) && curry[iCurry].index == i {
-			labelValues[i] = curry[iCurry].value
-			iCurry++
-			continue
-		}
-		labelValues[i] = labels[k]
-	}
-	return labelValues
-}
-
-func inlineLabelValues(lvs []string, curry []curriedLabelValue) []string {
-	labelValues := make([]string, len(lvs)+len(curry))
-	var iCurry, iLVs int
-	for i := range labelValues {
-		if iCurry < len(curry) && curry[iCurry].index == i {
-			labelValues[i] = curry[iCurry].value
-			iCurry++
-			continue
-		}
-		labelValues[i] = lvs[iLVs]
-		iLVs++
-	}
-	return labelValues
-}