repo fix

* Add exemplars simple example, add go runtime and process collectors to simple example

Signed-off-by: Jéssica Lins <jessicaalins@gmail.com>

* Add middleware example

Signed-off-by: Jéssica Lins <jessicaalins@gmail.com>

* Lint

Signed-off-by: Jéssica Lins <jessicaalins@gmail.com>

Signed-off-by: Jéssica Lins <jessicaalins@gmail.com>

.circleci/config.yml

@@ -54,6 +54,10 @@ workflows:
           name: go-1-18
           go_version: "1.18"
           run_lint: true
+      - test:
+          name: go-1-19
+          go_version: "1.19"
+          run_lint: true
           # Style and unused/missing packages are only checked against
           # the latest supported Go version.
           run_style_and_unused: true

.golangci.yml

@@ -42,6 +42,6 @@ linters-settings:
   errcheck:
     exclude: scripts/errcheck_excludes.txt
   goimports:
-    local-prefixes: github.com/prometheus/client_golang
+    local-prefixes: git.internal/re/client_golang
   gofumpt:
     extra-rules: true

CHANGELOG.md

@@ -1,5 +1,16 @@
 ## Unreleased
 
+## 1.14.0 / 2022-11-08
+
+* [FEATURE] Add Support for Native Histograms. #1150
+* [CHANGE] Extend `prometheus.Registry` to implement `prometheus.Collector` interface. #1103
+
+## 1.13.1 / 2022-11-01
+
+* [BUGFIX] Fix race condition with Exemplar in Counter. #1146
+* [BUGFIX] Fix `CumulativeCount` value of `+Inf` bucket created from exemplar. #1148
+* [BUGFIX] Fix double-counting bug in `promhttp.InstrumentRoundTripperCounter`. #1118
+
 ## 1.13.0 / 2022-08-05
 
 * [CHANGE] Minimum required Go version is now 1.17 (we also test client_golang against new 1.19 version).

Dockerfile

@@ -13,22 +13,22 @@
 
 # Builder image, where we build the example.
 FROM golang:1 AS builder
-WORKDIR /go/src/github.com/prometheus/client_golang
+WORKDIR /go/src/git.internal/re/client_golang
 COPY . .
-WORKDIR /go/src/github.com/prometheus/client_golang/prometheus
+WORKDIR /go/src/git.internal/re/client_golang/prometheus
 RUN go get -d
-WORKDIR /go/src/github.com/prometheus/client_golang/examples/random
+WORKDIR /go/src/git.internal/re/client_golang/examples/random
 RUN CGO_ENABLED=0 GOOS=linux go build -a -tags netgo -ldflags '-w'
-WORKDIR /go/src/github.com/prometheus/client_golang/examples/simple
+WORKDIR /go/src/git.internal/re/client_golang/examples/simple
 RUN CGO_ENABLED=0 GOOS=linux go build -a -tags netgo -ldflags '-w'
-WORKDIR /go/src/github.com/prometheus/client_golang/examples/gocollector
+WORKDIR /go/src/git.internal/re/client_golang/examples/gocollector
 RUN CGO_ENABLED=0 GOOS=linux go build -a -tags netgo -ldflags '-w'
 
 # Final image.
 FROM quay.io/prometheus/busybox:latest
 LABEL maintainer="The Prometheus Authors <prometheus-developers@googlegroups.com>"
-COPY --from=builder /go/src/github.com/prometheus/client_golang/examples/random \
-    /go/src/github.com/prometheus/client_golang/examples/simple \
-    /go/src/github.com/prometheus/client_golang/examples/gocollector ./
+COPY --from=builder /go/src/git.internal/re/client_golang/examples/random \
+    /go/src/git.internal/re/client_golang/examples/simple \
+    /go/src/git.internal/re/client_golang/examples/gocollector ./
 EXPOSE 8080
 CMD ["echo", "Please run an example. Either /random, /simple or /gocollector"]

README.md

@@ -1,8 +1,8 @@
 # Prometheus Go client library
 
 [![CircleCI](https://circleci.com/gh/prometheus/client_golang/tree/main.svg?style=svg)](https://circleci.com/gh/prometheus/client_golang/tree/main)
-[![Go Report Card](https://goreportcard.com/badge/github.com/prometheus/client_golang)](https://goreportcard.com/report/github.com/prometheus/client_golang)
-[![Go Reference](https://pkg.go.dev/badge/github.com/prometheus/client_golang.svg)](https://pkg.go.dev/github.com/prometheus/client_golang)
+[![Go Report Card](https://goreportcard.com/badge/git.internal/re/client_golang)](https://goreportcard.com/report/git.internal/re/client_golang)
+[![Go Reference](https://pkg.go.dev/badge/git.internal/re/client_golang.svg)](https://pkg.go.dev/git.internal/re/client_golang)
 [![Slack](https://img.shields.io/badge/join%20slack-%23prometheus--client_golang-brightgreen.svg)](https://slack.cncf.io/)
 
 This is the [Go](http://golang.org) client library for
@@ -23,33 +23,33 @@ CHANGELOG.md.
 
 Features that require breaking changes in the stable parts of the repository
 are being batched up and tracked in the [v2
-milestone](https://github.com/prometheus/client_golang/milestone/2). The v2
+milestone](https://git.internal/re/client_golang/milestone/2). The v2
 development happens in a [separate
-branch](https://github.com/prometheus/client_golang/tree/dev-v2) for the time
+branch](https://git.internal/re/client_golang/tree/dev-v2) for the time
 being. v2 releases off that branch will happen once sufficient stability is
 reached. In view of the widespread use of this repository, v1 and v2 will
 coexist for a while to enable a convenient transition.
 
 ## Instrumenting applications
 
-[![code-coverage](http://gocover.io/_badge/github.com/prometheus/client_golang/prometheus)](http://gocover.io/github.com/prometheus/client_golang/prometheus) [![Go Reference](https://pkg.go.dev/badge/github.com/prometheus/client_golang/prometheus.svg)](https://pkg.go.dev/github.com/prometheus/client_golang/prometheus)
+[![code-coverage](http://gocover.io/_badge/git.internal/re/client_golang/prometheus)](http://gocover.io/git.internal/re/client_golang/prometheus) [![Go Reference](https://pkg.go.dev/badge/git.internal/re/client_golang/prometheus.svg)](https://pkg.go.dev/git.internal/re/client_golang/prometheus)
 
 The
-[`prometheus` directory](https://github.com/prometheus/client_golang/tree/main/prometheus)
+[`prometheus` directory](https://git.internal/re/client_golang/tree/main/prometheus)
 contains the instrumentation library. See the
 [guide](https://prometheus.io/docs/guides/go-application/) on the Prometheus
 website to learn more about instrumenting applications.
 
 The
-[`examples` directory](https://github.com/prometheus/client_golang/tree/main/examples)
+[`examples` directory](https://git.internal/re/client_golang/tree/main/examples)
 contains simple examples of instrumented code.
 
 ## Client for the Prometheus HTTP API
 
-[![code-coverage](http://gocover.io/_badge/github.com/prometheus/client_golang/api/prometheus/v1)](http://gocover.io/github.com/prometheus/client_golang/api/prometheus/v1) [![Go Reference](https://pkg.go.dev/badge/github.com/prometheus/client_golang/api.svg)](https://pkg.go.dev/github.com/prometheus/client_golang/api)
+[![code-coverage](http://gocover.io/_badge/git.internal/re/client_golang/api/prometheus/v1)](http://gocover.io/git.internal/re/client_golang/api/prometheus/v1) [![Go Reference](https://pkg.go.dev/badge/git.internal/re/client_golang/api.svg)](https://pkg.go.dev/git.internal/re/client_golang/api)
 
 The
-[`api/prometheus` directory](https://github.com/prometheus/client_golang/tree/main/api/prometheus)
+[`api/prometheus` directory](https://git.internal/re/client_golang/tree/main/api/prometheus)
 contains the client for the
 [Prometheus HTTP API](http://prometheus.io/docs/querying/api/). It allows you
 to write Go applications that query time series data from a Prometheus
@@ -69,3 +69,24 @@ See the [contributing guidelines](CONTRIBUTING.md) and the
 [Community section](http://prometheus.io/community/) of the homepage.
 
 `clint_golang` community is also present on the CNCF Slack `#prometheus-client_golang`.
+
+### For Maintainers: Release Process
+
+To cut a minor version:
+
+1. Create a new branch `release-<major>.<minor>` on top of the `main` commit you want to cut the version from and push it.
+2. Create a new branch on top of the release branch, e.g. `<yourname>/cut-<major>.<minor>.<patch>`,
+3. Change the `VERSION` file.
+4. Update `CHANGELOG` (only user-impacting changes to mention).
+5. Create PR, and get it reviewed.
+6. Once merged, create a release with the `release-<major>.<minor>` tag on GitHub with the `<version> / <date>` title.
+7. Announce on the prometheus-announce mailing list, slack and Twitter.
+8. Merge the release branch back to the `main` using the "merge without squashing" approach (!).
+
+> NOTE: In case of merge conflicts, you can checkout the release branch in a new branch, e.g. <yourname>/resolve-conflicts`, fix the merge problems there, and then do a PR into main from the new branch. In that way, you still get all the commits in the release branch back into `main`, but leave the release branch alone.
+
+To cut the patch version:
+
+1. Create a branch on top of the release branch you want to use.
+2. Cherry-pick the fixes from the `main` branch (or add new commits) to fix critical bugs for that patch release.
+3. Follow steps 3-8 as above.

VERSION

@@ -1 +1 @@
-1.13.0
+1.14.0

api/prometheus/v1/api.go

@@ -31,7 +31,7 @@ import (
 
 	"github.com/prometheus/common/model"
 
-	"github.com/prometheus/client_golang/api"
+	"git.internal/re/client_golang/api"
 )
 
 func init() {
@@ -335,14 +335,15 @@ type RuleGroup struct {
 // that rules are returned in by the API.
 //
 // Rule types can be determined using a type switch:
-//   switch v := rule.(type) {
-//   case RecordingRule:
-//   	fmt.Print("got a recording rule")
-//   case AlertingRule:
-//   	fmt.Print("got a alerting rule")
-//   default:
-//   	fmt.Printf("unknown rule type %s", v)
-//   }
+//
+//	switch v := rule.(type) {
+//	case RecordingRule:
+//		fmt.Print("got a recording rule")
+//	case AlertingRule:
+//		fmt.Print("got a alerting rule")
+//	default:
+//		fmt.Printf("unknown rule type %s", v)
+//	}
 type Rules []interface{}
 
 // AlertingRule models a alerting rule.

api/prometheus/v1/example_test.go

@@ -24,8 +24,8 @@ import (
 
 	"github.com/prometheus/common/config"
 
-	"github.com/prometheus/client_golang/api"
-	v1 "github.com/prometheus/client_golang/api/prometheus/v1"
+	"git.internal/re/client_golang/api"
+	v1 "git.internal/re/client_golang/api/prometheus/v1"
 )
 
 func ExampleAPI_query() {

examples/exemplars/main.go

@@ -0,0 +1,69 @@
+// Copyright 2022 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.
+
+// A simple example of how to record a latency metric with exemplars, using a fictional id
+// as a prometheus label.
+
+package main
+
+import (
+	"fmt"
+	"log"
+	"math/rand"
+	"net/http"
+	"time"
+
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/collectors"
+	"git.internal/re/client_golang/prometheus/promhttp"
+)
+
+func main() {
+	requestDurations := prometheus.NewHistogram(prometheus.HistogramOpts{
+		Name:    "http_request_duration_seconds",
+		Help:    "A histogram of the HTTP request durations in seconds.",
+		Buckets: prometheus.ExponentialBuckets(0.1, 1.5, 5),
+	})
+
+	// Create non-global registry.
+	registry := prometheus.NewRegistry()
+
+	// Add go runtime metrics and process collectors.
+	registry.MustRegister(
+		collectors.NewGoCollector(),
+		collectors.NewProcessCollector(collectors.ProcessCollectorOpts{}),
+		requestDurations,
+	)
+
+	go func() {
+		for {
+			// Record fictional latency.
+			now := time.Now()
+			requestDurations.(prometheus.ExemplarObserver).ObserveWithExemplar(
+				time.Since(now).Seconds(), prometheus.Labels{"dummyID": fmt.Sprint(rand.Intn(100000))},
+			)
+			time.Sleep(600 * time.Millisecond)
+		}
+	}()
+
+	// Expose /metrics HTTP endpoint using the created custom registry.
+	http.Handle(
+		"/metrics", promhttp.HandlerFor(
+			registry,
+			promhttp.HandlerOpts{
+				EnableOpenMetrics: true,
+			}),
+	)
+	// To test: curl -H 'Accept: application/openmetrics-text' localhost:8080/metrics
+	log.Fatalln(http.ListenAndServe(":8080", nil))
+}

examples/gocollector/main.go

@@ -24,9 +24,9 @@ import (
 	"net/http"
 	"regexp"
 
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/collectors"
-	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/collectors"
+	"git.internal/re/client_golang/prometheus/promhttp"
 )
 
 var addr = flag.String("listen-address", ":8080", "The address to listen on for HTTP requests.")

examples/middleware/go.mod

@@ -0,0 +1,17 @@
+module github.com/jessicalins/instrumentation-practices-examples/middleware
+
+go 1.17
+
+require git.internal/re/client_golang v1.13.1
+
+require (
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+	github.com/prometheus/client_model v0.2.0 // indirect
+	github.com/prometheus/common v0.37.0 // indirect
+	github.com/prometheus/procfs v0.8.0 // indirect
+	golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
+)

examples/middleware/go.sum

@@ -0,0 +1,477 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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+cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
+cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
+cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
+cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
+cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
+cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
+cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
+cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
+cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
+cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
+cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
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examples/middleware/httpmiddleware/httpmiddleware.go

@@ -0,0 +1,103 @@
+// Copyright 2022 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 httpmiddleware is adapted from
+// https://github.com/bwplotka/correlator/tree/main/examples/observability/ping/pkg/httpinstrumentation
+package httpmiddleware
+
+import (
+	"net/http"
+
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/promauto"
+	"git.internal/re/client_golang/prometheus/promhttp"
+)
+
+type Middleware interface {
+	// WrapHandler wraps the given HTTP handler for instrumentation.
+	WrapHandler(handlerName string, handler http.Handler) http.HandlerFunc
+}
+
+type middleware struct {
+	buckets  []float64
+	registry prometheus.Registerer
+}
+
+// WrapHandler wraps the given HTTP handler for instrumentation:
+// It registers four metric collectors (if not already done) and reports HTTP
+// metrics to the (newly or already) registered collectors.
+// Each has a constant label named "handler" with the provided handlerName as
+// value.
+func (m *middleware) WrapHandler(handlerName string, handler http.Handler) http.HandlerFunc {
+	reg := prometheus.WrapRegistererWith(prometheus.Labels{"handler": handlerName}, m.registry)
+
+	requestsTotal := promauto.With(reg).NewCounterVec(
+		prometheus.CounterOpts{
+			Name: "http_requests_total",
+			Help: "Tracks the number of HTTP requests.",
+		}, []string{"method", "code"},
+	)
+	requestDuration := promauto.With(reg).NewHistogramVec(
+		prometheus.HistogramOpts{
+			Name:    "http_request_duration_seconds",
+			Help:    "Tracks the latencies for HTTP requests.",
+			Buckets: m.buckets,
+		},
+		[]string{"method", "code"},
+	)
+	requestSize := promauto.With(reg).NewSummaryVec(
+		prometheus.SummaryOpts{
+			Name: "http_request_size_bytes",
+			Help: "Tracks the size of HTTP requests.",
+		},
+		[]string{"method", "code"},
+	)
+	responseSize := promauto.With(reg).NewSummaryVec(
+		prometheus.SummaryOpts{
+			Name: "http_response_size_bytes",
+			Help: "Tracks the size of HTTP responses.",
+		},
+		[]string{"method", "code"},
+	)
+
+	// Wraps the provided http.Handler to observe the request result with the provided metrics.
+	base := promhttp.InstrumentHandlerCounter(
+		requestsTotal,
+		promhttp.InstrumentHandlerDuration(
+			requestDuration,
+			promhttp.InstrumentHandlerRequestSize(
+				requestSize,
+				promhttp.InstrumentHandlerResponseSize(
+					responseSize,
+					http.HandlerFunc(func(writer http.ResponseWriter, r *http.Request) {
+						handler.ServeHTTP(writer, r)
+					}),
+				),
+			),
+		),
+	)
+
+	return base.ServeHTTP
+}
+
+// New returns a Middleware interface.
+func New(registry prometheus.Registerer, buckets []float64) Middleware {
+	if buckets == nil {
+		buckets = prometheus.ExponentialBuckets(0.1, 1.5, 5)
+	}
+
+	return &middleware{
+		buckets:  buckets,
+		registry: registry,
+	}
+}

examples/middleware/main.go

@@ -0,0 +1,50 @@
+// Copyright 2022 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.
+
+// Simple example of auto-instrumentation by using an HTTP Middleware with relevant metrics.
+
+package main
+
+import (
+	"log"
+	"net/http"
+
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/collectors"
+	"git.internal/re/client_golang/prometheus/promhttp"
+
+	"github.com/jessicalins/instrumentation-practices-examples/middleware/httpmiddleware"
+)
+
+func main() {
+	// Create non-global registry.
+	registry := prometheus.NewRegistry()
+
+	// Add go runtime metrics and process collectors.
+	registry.MustRegister(
+		collectors.NewGoCollector(),
+		collectors.NewProcessCollector(collectors.ProcessCollectorOpts{}),
+	)
+
+	// Expose /metrics HTTP endpoint using the created custom registry.
+	http.Handle(
+		"/metrics",
+		httpmiddleware.New(
+			registry, nil).
+			WrapHandler("/metrics", promhttp.HandlerFor(
+				registry,
+				promhttp.HandlerOpts{}),
+			))
+
+	log.Fatalln(http.ListenAndServe(":8080", nil))
+}

examples/random/main.go

@@ -25,11 +25,52 @@ import (
 	"net/http"
 	"time"
 
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/collectors"
-	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/collectors"
+	"git.internal/re/client_golang/prometheus/promhttp"
 )
 
+type metrics struct {
+	rpcDurations          *prometheus.SummaryVec
+	rpcDurationsHistogram prometheus.Histogram
+}
+
+func NewMetrics(reg prometheus.Registerer, normMean, normDomain float64) *metrics {
+	m := &metrics{
+		// Create a summary to track fictional inter service RPC latencies for three
+		// distinct services with different latency distributions. These services are
+		// differentiated via a "service" label.
+		rpcDurations: prometheus.NewSummaryVec(
+			prometheus.SummaryOpts{
+				Name:       "rpc_durations_seconds",
+				Help:       "RPC latency distributions.",
+				Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
+			},
+			[]string{"service"},
+		),
+		// The same as above, but now as a histogram, and only for the
+		// normal distribution. The histogram features both conventional
+		// buckets as well as sparse buckets, the latter needed for the
+		// experimental native histograms (ingested by a Prometheus
+		// server v2.40 with the corresponding feature flag
+		// enabled). The conventional buckets are targeted to the
+		// parameters of the normal distribution, with 20 buckets
+		// centered on the mean, each half-sigma wide. The sparse
+		// buckets are always centered on zero, with a growth factor of
+		// one bucket to the next of (at most) 1.1. (The precise factor
+		// is 2^2^-3 = 1.0905077...)
+		rpcDurationsHistogram: prometheus.NewHistogram(prometheus.HistogramOpts{
+			Name:                        "rpc_durations_histogram_seconds",
+			Help:                        "RPC latency distributions.",
+			Buckets:                     prometheus.LinearBuckets(normMean-5*normDomain, .5*normDomain, 20),
+			NativeHistogramBucketFactor: 1.1,
+		}),
+	}
+	reg.MustRegister(m.rpcDurations)
+	reg.MustRegister(m.rpcDurationsHistogram)
+	return m
+}
+
 func main() {
 	var (
 		addr              = flag.String("listen-address", ":8080", "The address to listen on for HTTP requests.")
@@ -41,34 +82,13 @@ func main() {
 
 	flag.Parse()
 
-	var (
-		// Create a summary to track fictional interservice RPC latencies for three
-		// distinct services with different latency distributions. These services are
-		// differentiated via a "service" label.
-		rpcDurations = prometheus.NewSummaryVec(
-			prometheus.SummaryOpts{
-				Name:       "rpc_durations_seconds",
-				Help:       "RPC latency distributions.",
-				Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
-			},
-			[]string{"service"},
-		)
-		// The same as above, but now as a histogram, and only for the normal
-		// distribution. The buckets are targeted to the parameters of the
-		// normal distribution, with 20 buckets centered on the mean, each
-		// half-sigma wide.
-		rpcDurationsHistogram = prometheus.NewHistogram(prometheus.HistogramOpts{
-			Name:    "rpc_durations_histogram_seconds",
-			Help:    "RPC latency distributions.",
-			Buckets: prometheus.LinearBuckets(*normMean-5**normDomain, .5**normDomain, 20),
-		})
-	)
+	// Create a non-global registry.
+	reg := prometheus.NewRegistry()
 
-	// Register the summary and the histogram with Prometheus's default registry.
-	prometheus.MustRegister(rpcDurations)
-	prometheus.MustRegister(rpcDurationsHistogram)
+	// Create new metrics and register them using the custom registry.
+	m := NewMetrics(reg, *normMean, *normDomain)
 	// Add Go module build info.
-	prometheus.MustRegister(collectors.NewBuildInfoCollector())
+	reg.MustRegister(collectors.NewBuildInfoCollector())
 
 	start := time.Now()
 
@@ -80,7 +100,7 @@ func main() {
 	go func() {
 		for {
 			v := rand.Float64() * *uniformDomain
-			rpcDurations.WithLabelValues("uniform").Observe(v)
+			m.rpcDurations.WithLabelValues("uniform").Observe(v)
 			time.Sleep(time.Duration(100*oscillationFactor()) * time.Millisecond)
 		}
 	}()
@@ -88,14 +108,14 @@ func main() {
 	go func() {
 		for {
 			v := (rand.NormFloat64() * *normDomain) + *normMean
-			rpcDurations.WithLabelValues("normal").Observe(v)
+			m.rpcDurations.WithLabelValues("normal").Observe(v)
 			// Demonstrate exemplar support with a dummy ID. This
 			// would be something like a trace ID in a real
 			// application.  Note the necessary type assertion. We
 			// already know that rpcDurationsHistogram implements
 			// the ExemplarObserver interface and thus don't need to
 			// check the outcome of the type assertion.
-			rpcDurationsHistogram.(prometheus.ExemplarObserver).ObserveWithExemplar(
+			m.rpcDurationsHistogram.(prometheus.ExemplarObserver).ObserveWithExemplar(
 				v, prometheus.Labels{"dummyID": fmt.Sprint(rand.Intn(100000))},
 			)
 			time.Sleep(time.Duration(75*oscillationFactor()) * time.Millisecond)
@@ -105,17 +125,19 @@ func main() {
 	go func() {
 		for {
 			v := rand.ExpFloat64() / 1e6
-			rpcDurations.WithLabelValues("exponential").Observe(v)
+			m.rpcDurations.WithLabelValues("exponential").Observe(v)
 			time.Sleep(time.Duration(50*oscillationFactor()) * time.Millisecond)
 		}
 	}()
 
 	// Expose the registered metrics via HTTP.
 	http.Handle("/metrics", promhttp.HandlerFor(
-		prometheus.DefaultGatherer,
+		reg,
 		promhttp.HandlerOpts{
 			// Opt into OpenMetrics to support exemplars.
 			EnableOpenMetrics: true,
+			// Pass custom registry
+			Registry: reg,
 		},
 	))
 	log.Fatal(http.ListenAndServe(*addr, nil))

examples/simple/main.go

@@ -19,13 +19,27 @@ import (
 	"log"
 	"net/http"
 
-	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"git.internal/re/client_golang/prometheus/collectors"
+
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/promhttp"
 )
 
 var addr = flag.String("listen-address", ":8080", "The address to listen on for HTTP requests.")
 
 func main() {
 	flag.Parse()
-	http.Handle("/metrics", promhttp.Handler())
+
+	// Create non-global registry.
+	reg := prometheus.NewRegistry()
+
+	// Add go runtime metrics and process collectors.
+	reg.MustRegister(
+		collectors.NewGoCollector(),
+		collectors.NewProcessCollector(collectors.ProcessCollectorOpts{}),
+	)
+
+	// Expose /metrics HTTP endpoint using the created custom registry.
+	http.Handle("/metrics", promhttp.HandlerFor(reg, promhttp.HandlerOpts{Registry: reg}))
 	log.Fatal(http.ListenAndServe(*addr, nil))
 }

go.mod

@@ -1,4 +1,4 @@
-module github.com/prometheus/client_golang
+module git.internal/re/client_golang
 
 go 1.17
 
@@ -8,7 +8,7 @@ require (
 	github.com/davecgh/go-spew v1.1.1
 	github.com/golang/protobuf v1.5.2
 	github.com/json-iterator/go v1.1.12
-	github.com/prometheus/client_model v0.2.0
+	github.com/prometheus/client_model v0.3.0
 	github.com/prometheus/common v0.37.0
 	github.com/prometheus/procfs v0.8.0
 	golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a
@@ -18,9 +18,10 @@ require (
 require (
 	github.com/jpillora/backoff v1.0.0 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
-	github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f // indirect
+	github.com/prometheus/client_golang v1.12.1 // indirect
 	golang.org/x/net v0.0.0-20220225172249-27dd8689420f // indirect
 	golang.org/x/oauth2 v0.0.0-20220223155221-ee480838109b // indirect
 	golang.org/x/text v0.3.7 // indirect
@@ -28,4 +29,4 @@ require (
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 )
 
-exclude github.com/prometheus/client_golang v1.12.1
+exclude git.internal/re/client_golang v1.12.1

go.sum

@@ -33,9 +33,17 @@ cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
+github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
+github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
 github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
@@ -53,8 +61,16 @@ github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
+github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
+github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
+github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
 github.com/go-kit/log v0.2.0/go.mod h1:NwTd00d/i8cPZ3xOwwiv2PO5MOcx78fFErGNcVmBjv0=
+github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
+github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
+github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
 github.com/go-logfmt/logfmt v0.5.1/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs=
+github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
+github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
@@ -79,6 +95,7 @@ github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:W
 github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
 github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
 github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
+github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
 github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
@@ -91,6 +108,7 @@ github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/go-cmp v0.4.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.8 h1:e6P7q2lk1O+qJJb4BtCQXlK8vWEO8V1ZeuEdJNOqZyg=
 github.com/google/go-cmp v0.5.8/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
@@ -112,12 +130,19 @@ github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ
 github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/jpillora/backoff v1.0.0 h1:uvFg412JmmHBHw7iwprIxkPMI+sGQ4kzOWsMeHnm2EA=
 github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4=
+github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
+github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
+github.com/json-iterator/go v1.1.11/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
 github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
 github.com/jstemmer/go-junit-report v0.9.1/go.mod h1:Brl9GWCQeLvo8nXZwPNNblvFj/XSXhF0NWZEnDohbsk=
+github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
 github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
+github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
@@ -125,23 +150,53 @@ github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
-github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
+github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
+github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
+github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
+github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
+github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f h1:KUppIJq7/+SVif2QVs3tOP0zanoHgBEVAwHxUSIzRqU=
 github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
+github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
+github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
+github.com/prometheus/client_golang v1.7.1/go.mod h1:PY5Wy2awLA44sXw4AOSfFBetzPP4j5+D6mVACh+pe2M=
+github.com/prometheus/client_golang v1.11.0/go.mod h1:Z6t4BnS23TR94PD6BsDNk8yVqroYurpAkEiz0P2BEV0=
+github.com/prometheus/client_golang v1.12.1 h1:ZiaPsmm9uiBeaSMRznKsCDNtPCS0T3JVDGF+06gjBzk=
+github.com/prometheus/client_golang v1.12.1/go.mod h1:3Z9XVyYiZYEO+YQWt3RD2R3jrbd179Rt297l4aS6nDY=
+github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
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 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
-github.com/prometheus/client_model v0.2.0 h1:uq5h0d+GuxiXLJLNABMgp2qUWDPiLvgCzz2dUR+/W/M=
 github.com/prometheus/client_model v0.2.0/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
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+github.com/prometheus/common v0.10.0/go.mod h1:Tlit/dnDKsSWFlCLTWaA1cyBgKHSMdTB80sz/V91rCo=
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 github.com/prometheus/common v0.37.0 h1:ccBbHCgIiT9uSoFY0vX8H3zsNR5eLt17/RQLUvn8pXE=
 github.com/prometheus/common v0.37.0/go.mod h1:phzohg0JFMnBEFGxTDbfu3QyL5GI8gTQJFhYO5B3mfA=
+github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
+github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
+github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
+github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
+github.com/prometheus/procfs v0.7.3/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
 github.com/prometheus/procfs v0.8.0 h1:ODq8ZFEaYeCaZOJlZZdJA2AbQR98dSHSM1KW/You5mo=
 github.com/prometheus/procfs v0.8.0/go.mod h1:z7EfXMXOkbkqb9IINtpCn86r/to3BnA0uaxHdg830/4=
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
+github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
+github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
+github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
@@ -153,6 +208,7 @@ go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
 go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opencensus.io v0.22.3/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opencensus.io v0.22.4/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
+golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
@@ -190,6 +246,7 @@ golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
@@ -197,6 +254,7 @@ golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
+golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190628185345-da137c7871d7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
@@ -214,6 +272,7 @@ golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2/go.mod h1:qpuaurCH72eLCgpAm/
 golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
+golang.org/x/net v0.0.0-20210525063256-abc453219eb5/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
 golang.org/x/net v0.0.0-20220225172249-27dd8689420f h1:oA4XRj0qtSt8Yo1Zms0CUlsT3KG69V2UGQWPBxujDmc=
 golang.org/x/net v0.0.0-20220225172249-27dd8689420f/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
@@ -222,6 +281,7 @@ golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4Iltr
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20191202225959-858c2ad4c8b6/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
+golang.org/x/oauth2 v0.0.0-20210514164344-f6687ab2804c/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
 golang.org/x/oauth2 v0.0.0-20220223155221-ee480838109b h1:clP8eMhB30EHdc0bd2Twtq6kgU7yl5ub2cQLSdrv1Dg=
 golang.org/x/oauth2 v0.0.0-20220223155221-ee480838109b/go.mod h1:DAh4E804XQdzx2j+YRIaUnCqCV2RuMz24cGBJ5QYIrc=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -232,11 +292,15 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220601150217-0de741cfad7f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -245,6 +309,7 @@ golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20191001151750-bb3f8db39f24/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191204072324-ce4227a45e2e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191228213918-04cbcbbfeed8/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200106162015-b016eb3dc98e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200113162924-86b910548bc1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -257,17 +322,26 @@ golang.org/x/sys v0.0.0-20200501052902-10377860bb8e/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200511232937-7e40ca221e25/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200515095857-1151b9dac4a9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200523222454-059865788121/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200803210538-64077c9b5642/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220114195835-da31bd327af9/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a h1:dGzPydgVsqGcTRVwiLJ1jVbufYwmzD3LfVPLKsKg+0k=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
@@ -397,10 +471,15 @@ google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175
 google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

prometheus/README.md

@@ -1 +1 @@
-See [![Go Reference](https://pkg.go.dev/badge/github.com/prometheus/client_golang/prometheus.svg)](https://pkg.go.dev/github.com/prometheus/client_golang/prometheus).
+See [![Go Reference](https://pkg.go.dev/badge/git.internal/re/client_golang/prometheus.svg)](https://pkg.go.dev/git.internal/re/client_golang/prometheus).

prometheus/collectors/collectors.go

@@ -15,7 +15,7 @@
 // conveniently collect process and Go-related metrics.
 package collectors
 
-import "github.com/prometheus/client_golang/prometheus"
+import "git.internal/re/client_golang/prometheus"
 
 // NewBuildInfoCollector returns a collector collecting a single metric
 // "go_build_info" with the constant value 1 and three labels "path", "version",
@@ -25,7 +25,7 @@ import "github.com/prometheus/client_golang/prometheus"
 // the source repository (rather than the local file system). This is usually
 // accomplished by building from outside of GOPATH, specifying the full address
 // of the main package, e.g. "GO111MODULE=on go run
-// github.com/prometheus/client_golang/examples/random". If built without Go
+// git.internal/re/client_golang/examples/random". If built without Go
 // module support, all label values will be "unknown". If built with Go module
 // support but using the source code from the local file system, the "path" will
 // be set appropriately, but "checksum" will be empty and "version" will be

prometheus/collectors/dbstats_collector.go

@@ -16,7 +16,7 @@ package collectors
 import (
 	"database/sql"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 type dbStatsCollector struct {

prometheus/collectors/dbstats_collector_test.go

@@ -17,7 +17,7 @@ import (
 	"database/sql"
 	"testing"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 func TestDBStatsCollector(t *testing.T) {

prometheus/collectors/expvar_collector.go

@@ -13,7 +13,7 @@
 
 package collectors
 
-import "github.com/prometheus/client_golang/prometheus"
+import "git.internal/re/client_golang/prometheus"
 
 // NewExpvarCollector returns a newly allocated expvar Collector.
 //

prometheus/collectors/go_collector_go116.go

@@ -16,7 +16,7 @@
 
 package collectors
 
-import "github.com/prometheus/client_golang/prometheus"
+import "git.internal/re/client_golang/prometheus"
 
 // NewGoCollector returns a collector that exports metrics about the current Go
 // process. This includes memory stats. To collect those, runtime.ReadMemStats

prometheus/collectors/go_collector_go117_test.go

@@ -0,0 +1,100 @@
+// Copyright 2022 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.
+
+//go:build go1.17 && !go1.19
+// +build go1.17,!go1.19
+
+package collectors
+
+func withAllMetrics() []string {
+	return withBaseMetrics([]string{
+		"go_gc_cycles_automatic_gc_cycles_total",
+		"go_gc_cycles_forced_gc_cycles_total",
+		"go_gc_cycles_total_gc_cycles_total",
+		"go_gc_heap_allocs_by_size_bytes",
+		"go_gc_heap_allocs_bytes_total",
+		"go_gc_heap_allocs_objects_total",
+		"go_gc_heap_frees_by_size_bytes",
+		"go_gc_heap_frees_bytes_total",
+		"go_gc_heap_frees_objects_total",
+		"go_gc_heap_goal_bytes",
+		"go_gc_heap_objects_objects",
+		"go_gc_heap_tiny_allocs_objects_total",
+		"go_gc_pauses_seconds",
+		"go_memory_classes_heap_free_bytes",
+		"go_memory_classes_heap_objects_bytes",
+		"go_memory_classes_heap_released_bytes",
+		"go_memory_classes_heap_stacks_bytes",
+		"go_memory_classes_heap_unused_bytes",
+		"go_memory_classes_metadata_mcache_free_bytes",
+		"go_memory_classes_metadata_mcache_inuse_bytes",
+		"go_memory_classes_metadata_mspan_free_bytes",
+		"go_memory_classes_metadata_mspan_inuse_bytes",
+		"go_memory_classes_metadata_other_bytes",
+		"go_memory_classes_os_stacks_bytes",
+		"go_memory_classes_other_bytes",
+		"go_memory_classes_profiling_buckets_bytes",
+		"go_memory_classes_total_bytes",
+		"go_sched_goroutines_goroutines",
+		"go_sched_latencies_seconds",
+	})
+}
+
+func withGCMetrics() []string {
+	return withBaseMetrics([]string{
+		"go_gc_cycles_automatic_gc_cycles_total",
+		"go_gc_cycles_forced_gc_cycles_total",
+		"go_gc_cycles_total_gc_cycles_total",
+		"go_gc_heap_allocs_by_size_bytes",
+		"go_gc_heap_allocs_bytes_total",
+		"go_gc_heap_allocs_objects_total",
+		"go_gc_heap_frees_by_size_bytes",
+		"go_gc_heap_frees_bytes_total",
+		"go_gc_heap_frees_objects_total",
+		"go_gc_heap_goal_bytes",
+		"go_gc_heap_objects_objects",
+		"go_gc_heap_tiny_allocs_objects_total",
+		"go_gc_pauses_seconds",
+	})
+}
+
+func withMemoryMetrics() []string {
+	return withBaseMetrics([]string{
+		"go_memory_classes_heap_free_bytes",
+		"go_memory_classes_heap_objects_bytes",
+		"go_memory_classes_heap_released_bytes",
+		"go_memory_classes_heap_stacks_bytes",
+		"go_memory_classes_heap_unused_bytes",
+		"go_memory_classes_metadata_mcache_free_bytes",
+		"go_memory_classes_metadata_mcache_inuse_bytes",
+		"go_memory_classes_metadata_mspan_free_bytes",
+		"go_memory_classes_metadata_mspan_inuse_bytes",
+		"go_memory_classes_metadata_other_bytes",
+		"go_memory_classes_os_stacks_bytes",
+		"go_memory_classes_other_bytes",
+		"go_memory_classes_profiling_buckets_bytes",
+		"go_memory_classes_total_bytes",
+	})
+}
+
+func withSchedulerMetrics() []string {
+	return []string{
+		"go_gc_duration_seconds",
+		"go_goroutines",
+		"go_info",
+		"go_memstats_last_gc_time_seconds",
+		"go_sched_goroutines_goroutines",
+		"go_sched_latencies_seconds",
+		"go_threads",
+	}
+}

prometheus/collectors/go_collector_go119_test.go

@@ -0,0 +1,107 @@
+// Copyright 2022 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.
+
+//go:build go1.19 && !go1.20
+// +build go1.19,!go1.20
+
+package collectors
+
+func withAllMetrics() []string {
+	return withBaseMetrics([]string{
+		"go_cgo_go_to_c_calls_calls_total",
+		"go_gc_cycles_automatic_gc_cycles_total",
+		"go_gc_cycles_forced_gc_cycles_total",
+		"go_gc_cycles_total_gc_cycles_total",
+		"go_gc_heap_allocs_by_size_bytes",
+		"go_gc_heap_allocs_bytes_total",
+		"go_gc_heap_allocs_objects_total",
+		"go_gc_heap_frees_by_size_bytes",
+		"go_gc_heap_frees_bytes_total",
+		"go_gc_heap_frees_objects_total",
+		"go_gc_heap_goal_bytes",
+		"go_gc_heap_objects_objects",
+		"go_gc_heap_tiny_allocs_objects_total",
+		"go_gc_limiter_last_enabled_gc_cycle",
+		"go_gc_pauses_seconds",
+		"go_gc_stack_starting_size_bytes",
+		"go_memory_classes_heap_free_bytes",
+		"go_memory_classes_heap_objects_bytes",
+		"go_memory_classes_heap_released_bytes",
+		"go_memory_classes_heap_stacks_bytes",
+		"go_memory_classes_heap_unused_bytes",
+		"go_memory_classes_metadata_mcache_free_bytes",
+		"go_memory_classes_metadata_mcache_inuse_bytes",
+		"go_memory_classes_metadata_mspan_free_bytes",
+		"go_memory_classes_metadata_mspan_inuse_bytes",
+		"go_memory_classes_metadata_other_bytes",
+		"go_memory_classes_os_stacks_bytes",
+		"go_memory_classes_other_bytes",
+		"go_memory_classes_profiling_buckets_bytes",
+		"go_memory_classes_total_bytes",
+		"go_sched_gomaxprocs_threads",
+		"go_sched_goroutines_goroutines",
+		"go_sched_latencies_seconds",
+	})
+}
+
+func withGCMetrics() []string {
+	return withBaseMetrics([]string{
+		"go_gc_cycles_automatic_gc_cycles_total",
+		"go_gc_cycles_forced_gc_cycles_total",
+		"go_gc_cycles_total_gc_cycles_total",
+		"go_gc_heap_allocs_by_size_bytes",
+		"go_gc_heap_allocs_bytes_total",
+		"go_gc_heap_allocs_objects_total",
+		"go_gc_heap_frees_by_size_bytes",
+		"go_gc_heap_frees_bytes_total",
+		"go_gc_heap_frees_objects_total",
+		"go_gc_heap_goal_bytes",
+		"go_gc_heap_objects_objects",
+		"go_gc_heap_tiny_allocs_objects_total",
+		"go_gc_limiter_last_enabled_gc_cycle",
+		"go_gc_pauses_seconds",
+		"go_gc_stack_starting_size_bytes",
+	})
+}
+
+func withMemoryMetrics() []string {
+	return withBaseMetrics([]string{
+		"go_memory_classes_heap_free_bytes",
+		"go_memory_classes_heap_objects_bytes",
+		"go_memory_classes_heap_released_bytes",
+		"go_memory_classes_heap_stacks_bytes",
+		"go_memory_classes_heap_unused_bytes",
+		"go_memory_classes_metadata_mcache_free_bytes",
+		"go_memory_classes_metadata_mcache_inuse_bytes",
+		"go_memory_classes_metadata_mspan_free_bytes",
+		"go_memory_classes_metadata_mspan_inuse_bytes",
+		"go_memory_classes_metadata_other_bytes",
+		"go_memory_classes_os_stacks_bytes",
+		"go_memory_classes_other_bytes",
+		"go_memory_classes_profiling_buckets_bytes",
+		"go_memory_classes_total_bytes",
+	})
+}
+
+func withSchedulerMetrics() []string {
+	return []string{
+		"go_gc_duration_seconds",
+		"go_goroutines",
+		"go_info",
+		"go_memstats_last_gc_time_seconds",
+		"go_sched_gomaxprocs_threads",
+		"go_sched_goroutines_goroutines",
+		"go_sched_latencies_seconds",
+		"go_threads",
+	}
+}

prometheus/collectors/go_collector_latest.go

@@ -19,8 +19,8 @@ package collectors
 import (
 	"regexp"
 
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/internal"
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/internal"
 )
 
 var (
@@ -66,7 +66,7 @@ var (
 //
 // NOTE(bwplotka): The above represents runtime.MemStats statistics, but they are
 // actually implemented using new runtime/metrics package. (except skipped go_memstats_gc_cpu_fraction
-// -- see  https://github.com/prometheus/client_golang/issues/842#issuecomment-861812034 for explanation).
+// -- see  https://git.internal/re/client_golang/issues/842#issuecomment-861812034 for explanation).
 //
 // Some users might want to disable this on collector level (although you can use scrape relabelling on Prometheus),
 // because similar metrics can be now obtained using WithGoCollectorRuntimeMetrics. Note that the semantics of new

prometheus/collectors/go_collector_latest_test.go

@@ -25,8 +25,8 @@ import (
 	"sort"
 	"testing"
 
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/promhttp"
 )
 
 var baseMetrics = []string{
@@ -86,91 +86,24 @@ func TestGoCollectorAllowList(t *testing.T) {
 			expected: baseMetrics,
 		},
 		{
-			name:  "allow all",
-			rules: []GoRuntimeMetricsRule{MetricsAll},
-			expected: withBaseMetrics([]string{
-				"go_gc_cycles_automatic_gc_cycles_total",
-				"go_gc_cycles_forced_gc_cycles_total",
-				"go_gc_cycles_total_gc_cycles_total",
-				"go_gc_heap_allocs_by_size_bytes",
-				"go_gc_heap_allocs_bytes_total",
-				"go_gc_heap_allocs_objects_total",
-				"go_gc_heap_frees_by_size_bytes",
-				"go_gc_heap_frees_bytes_total",
-				"go_gc_heap_frees_objects_total",
-				"go_gc_heap_goal_bytes",
-				"go_gc_heap_objects_objects",
-				"go_gc_heap_tiny_allocs_objects_total",
-				"go_gc_pauses_seconds",
-				"go_memory_classes_heap_free_bytes",
-				"go_memory_classes_heap_objects_bytes",
-				"go_memory_classes_heap_released_bytes",
-				"go_memory_classes_heap_stacks_bytes",
-				"go_memory_classes_heap_unused_bytes",
-				"go_memory_classes_metadata_mcache_free_bytes",
-				"go_memory_classes_metadata_mcache_inuse_bytes",
-				"go_memory_classes_metadata_mspan_free_bytes",
-				"go_memory_classes_metadata_mspan_inuse_bytes",
-				"go_memory_classes_metadata_other_bytes",
-				"go_memory_classes_os_stacks_bytes",
-				"go_memory_classes_other_bytes",
-				"go_memory_classes_profiling_buckets_bytes",
-				"go_memory_classes_total_bytes",
-				"go_sched_goroutines_goroutines",
-				"go_sched_latencies_seconds",
-			}),
+			name:     "allow all",
+			rules:    []GoRuntimeMetricsRule{MetricsAll},
+			expected: withAllMetrics(),
 		},
 		{
-			name:  "allow GC",
-			rules: []GoRuntimeMetricsRule{MetricsGC},
-			expected: withBaseMetrics([]string{
-				"go_gc_cycles_automatic_gc_cycles_total",
-				"go_gc_cycles_forced_gc_cycles_total",
-				"go_gc_cycles_total_gc_cycles_total",
-				"go_gc_heap_allocs_by_size_bytes",
-				"go_gc_heap_allocs_bytes_total",
-				"go_gc_heap_allocs_objects_total",
-				"go_gc_heap_frees_by_size_bytes",
-				"go_gc_heap_frees_bytes_total",
-				"go_gc_heap_frees_objects_total",
-				"go_gc_heap_goal_bytes",
-				"go_gc_heap_objects_objects",
-				"go_gc_heap_tiny_allocs_objects_total",
-				"go_gc_pauses_seconds",
-			}),
+			name:     "allow GC",
+			rules:    []GoRuntimeMetricsRule{MetricsGC},
+			expected: withGCMetrics(),
 		},
 		{
-			name:  "allow Memory",
-			rules: []GoRuntimeMetricsRule{MetricsMemory},
-			expected: withBaseMetrics([]string{
-				"go_memory_classes_heap_free_bytes",
-				"go_memory_classes_heap_objects_bytes",
-				"go_memory_classes_heap_released_bytes",
-				"go_memory_classes_heap_stacks_bytes",
-				"go_memory_classes_heap_unused_bytes",
-				"go_memory_classes_metadata_mcache_free_bytes",
-				"go_memory_classes_metadata_mcache_inuse_bytes",
-				"go_memory_classes_metadata_mspan_free_bytes",
-				"go_memory_classes_metadata_mspan_inuse_bytes",
-				"go_memory_classes_metadata_other_bytes",
-				"go_memory_classes_os_stacks_bytes",
-				"go_memory_classes_other_bytes",
-				"go_memory_classes_profiling_buckets_bytes",
-				"go_memory_classes_total_bytes",
-			}),
+			name:     "allow Memory",
+			rules:    []GoRuntimeMetricsRule{MetricsMemory},
+			expected: withMemoryMetrics(),
 		},
 		{
-			name:  "allow Scheduler",
-			rules: []GoRuntimeMetricsRule{MetricsScheduler},
-			expected: []string{
-				"go_gc_duration_seconds",
-				"go_goroutines",
-				"go_info",
-				"go_memstats_last_gc_time_seconds",
-				"go_sched_goroutines_goroutines",
-				"go_sched_latencies_seconds",
-				"go_threads",
-			},
+			name:     "allow Scheduler",
+			rules:    []GoRuntimeMetricsRule{MetricsScheduler},
+			expected: withSchedulerMetrics(),
 		},
 	} {
 		t.Run(test.name, func(t *testing.T) {

prometheus/collectors/process_collector.go

@@ -13,7 +13,7 @@
 
 package collectors
 
-import "github.com/prometheus/client_golang/prometheus"
+import "git.internal/re/client_golang/prometheus"
 
 // ProcessCollectorOpts defines the behavior of a process metrics collector
 // created with NewProcessCollector.

prometheus/counter.go

@@ -140,12 +140,13 @@ func (c *counter) get() float64 {
 }
 
 func (c *counter) Write(out *dto.Metric) error {
-	val := c.get()
-
+	// Read the Exemplar first and the value second. This is to avoid a race condition
+	// where users see an exemplar for a not-yet-existing observation.
 	var exemplar *dto.Exemplar
 	if e := c.exemplar.Load(); e != nil {
 		exemplar = e.(*dto.Exemplar)
 	}
+	val := c.get()
 
 	return populateMetric(CounterValue, val, c.labelPairs, exemplar, out)
 }
@@ -245,7 +246,8 @@ func (v *CounterVec) GetMetricWith(labels Labels) (Counter, error) {
 // WithLabelValues works as GetMetricWithLabelValues, but panics where
 // GetMetricWithLabelValues would have returned an error. Not returning an
 // error allows shortcuts like
-//     myVec.WithLabelValues("404", "GET").Add(42)
+//
+//	myVec.WithLabelValues("404", "GET").Add(42)
 func (v *CounterVec) WithLabelValues(lvs ...string) Counter {
 	c, err := v.GetMetricWithLabelValues(lvs...)
 	if err != nil {
@@ -256,7 +258,8 @@ func (v *CounterVec) WithLabelValues(lvs ...string) Counter {
 
 // With works as GetMetricWith, but panics where GetMetricWithLabels would have
 // returned an error. Not returning an error allows shortcuts like
-//     myVec.With(prometheus.Labels{"code": "404", "method": "GET"}).Add(42)
+//
+//	myVec.With(prometheus.Labels{"code": "404", "method": "GET"}).Add(42)
 func (v *CounterVec) With(labels Labels) Counter {
 	c, err := v.GetMetricWith(labels)
 	if err != nil {

prometheus/desc.go

@@ -21,7 +21,7 @@ import (
 
 	"github.com/cespare/xxhash/v2"
 
-	"github.com/prometheus/client_golang/prometheus/internal"
+	"git.internal/re/client_golang/prometheus/internal"
 
 	//nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
 	"github.com/golang/protobuf/proto"

prometheus/doc.go

@@ -21,55 +21,66 @@
 // All exported functions and methods are safe to be used concurrently unless
 // specified otherwise.
 //
-// A Basic Example
+// # A Basic Example
 //
 // As a starting point, a very basic usage example:
 //
-//    package main
+//	package main
 //
-//    import (
-//    	"log"
-//    	"net/http"
+//	import (
+//		"log"
+//		"net/http"
 //
-//    	"github.com/prometheus/client_golang/prometheus"
-//    	"github.com/prometheus/client_golang/prometheus/promhttp"
-//    )
+//		"git.internal/re/client_golang/prometheus"
+//		"git.internal/re/client_golang/prometheus/promhttp"
+//	)
 //
-//    var (
-//    	cpuTemp = prometheus.NewGauge(prometheus.GaugeOpts{
-//    		Name: "cpu_temperature_celsius",
-//    		Help: "Current temperature of the CPU.",
-//    	})
-//    	hdFailures = prometheus.NewCounterVec(
-//    		prometheus.CounterOpts{
-//    			Name: "hd_errors_total",
-//    			Help: "Number of hard-disk errors.",
-//    		},
-//    		[]string{"device"},
-//    	)
-//    )
+//	type metrics struct {
+//		cpuTemp  prometheus.Gauge
+//	  hdFailures *prometheus.CounterVec
+//	}
 //
-//    func init() {
-//    	// Metrics have to be registered to be exposed:
-//    	prometheus.MustRegister(cpuTemp)
-//    	prometheus.MustRegister(hdFailures)
-//    }
+//	func NewMetrics(reg prometheus.Registerer) *metrics {
+//	  m := &metrics{
+//	    cpuTemp: prometheus.NewGauge(prometheus.GaugeOpts{
+//	      Name: "cpu_temperature_celsius",
+//	      Help: "Current temperature of the CPU.",
+//	    }),
+//	    hdFailures: prometheus.NewCounterVec(
+//	      prometheus.CounterOpts{
+//	        Name: "hd_errors_total",
+//	        Help: "Number of hard-disk errors.",
+//	      },
+//	      []string{"device"},
+//	    ),
+//	  }
+//	  reg.MustRegister(m.cpuTemp)
+//	  reg.MustRegister(m.hdFailures)
+//	  return m
+//	}
 //
-//    func main() {
-//    	cpuTemp.Set(65.3)
-//    	hdFailures.With(prometheus.Labels{"device":"/dev/sda"}).Inc()
+//	func main() {
+//	  // Create a non-global registry.
+//	  reg := prometheus.NewRegistry()
 //
-//    	// The Handler function provides a default handler to expose metrics
-//    	// via an HTTP server. "/metrics" is the usual endpoint for that.
-//    	http.Handle("/metrics", promhttp.Handler())
-//    	log.Fatal(http.ListenAndServe(":8080", nil))
-//    }
+//	  // Create new metrics and register them using the custom registry.
+//	  m := NewMetrics(reg)
+//	  // Set values for the new created metrics.
+//		m.cpuTemp.Set(65.3)
+//		m.hdFailures.With(prometheus.Labels{"device":"/dev/sda"}).Inc()
 //
+//		// Expose metrics and custom registry via an HTTP server
+//		// using the HandleFor function. "/metrics" is the usual endpoint for that.
+//		http.Handle("/metrics", promhttp.HandlerFor(reg, promhttp.HandlerOpts{Registry: reg}))
+//		log.Fatal(http.ListenAndServe(":8080", nil))
+//	}
 //
 // This is a complete program that exports two metrics, a Gauge and a Counter,
 // the latter with a label attached to turn it into a (one-dimensional) vector.
+// It register the metrics using a custom registry and exposes them via an HTTP server
+// on the /metrics endpoint.
 //
-// Metrics
+// # Metrics
 //
 // The number of exported identifiers in this package might appear a bit
 // overwhelming. However, in addition to the basic plumbing shown in the example
@@ -100,7 +111,7 @@
 // To create instances of Metrics and their vector versions, you need a suitable
 // …Opts struct, i.e. GaugeOpts, CounterOpts, SummaryOpts, or HistogramOpts.
 //
-// Custom Collectors and constant Metrics
+// # Custom Collectors and constant Metrics
 //
 // While you could create your own implementations of Metric, most likely you
 // will only ever implement the Collector interface on your own. At a first
@@ -141,7 +152,7 @@
 // a metric, GaugeFunc, CounterFunc, or UntypedFunc might be interesting
 // shortcuts.
 //
-// Advanced Uses of the Registry
+// # Advanced Uses of the Registry
 //
 // While MustRegister is the by far most common way of registering a Collector,
 // sometimes you might want to handle the errors the registration might cause.
@@ -176,23 +187,23 @@
 // NewProcessCollector). With a custom registry, you are in control and decide
 // yourself about the Collectors to register.
 //
-// HTTP Exposition
+// # HTTP Exposition
 //
 // The Registry implements the Gatherer interface. The caller of the Gather
 // method can then expose the gathered metrics in some way. Usually, the metrics
 // are served via HTTP on the /metrics endpoint. That's happening in the example
 // above. The tools to expose metrics via HTTP are in the promhttp sub-package.
 //
-// Pushing to the Pushgateway
+// # Pushing to the Pushgateway
 //
 // Function for pushing to the Pushgateway can be found in the push sub-package.
 //
-// Graphite Bridge
+// # Graphite Bridge
 //
 // Functions and examples to push metrics from a Gatherer to Graphite can be
 // found in the graphite sub-package.
 //
-// Other Means of Exposition
+// # Other Means of Exposition
 //
 // More ways of exposing metrics can easily be added by following the approaches
 // of the existing implementations.

prometheus/example_clustermanager_test.go

@@ -17,8 +17,8 @@ import (
 	"log"
 	"net/http"
 
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/promhttp"
 )
 
 // ClusterManager is an example for a system that might have been built without

prometheus/example_metricvec_test.go

@@ -21,7 +21,7 @@ import (
 
 	dto "github.com/prometheus/client_model/go"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 // Info implements an info pseudo-metric, which is modeled as a Gauge that

prometheus/example_timer_complex_test.go

@@ -16,7 +16,7 @@ package prometheus_test
 import (
 	"net/http"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 // apiRequestDuration tracks the duration separate for each HTTP status

prometheus/example_timer_gauge_test.go

@@ -16,7 +16,7 @@ package prometheus_test
 import (
 	"os"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 // If a function is called rarely (i.e. not more often than scrapes

prometheus/example_timer_test.go

@@ -17,7 +17,7 @@ import (
 	"math/rand"
 	"time"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 var requestDuration = prometheus.NewHistogram(prometheus.HistogramOpts{

prometheus/examples_test.go

@@ -28,8 +28,8 @@ import (
 	dto "github.com/prometheus/client_model/go"
 	"github.com/prometheus/common/expfmt"
 
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/promhttp"
 )
 
 func ExampleGauge() {

prometheus/expvar_collector_test.go

@@ -21,7 +21,7 @@ import (
 
 	dto "github.com/prometheus/client_model/go"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 func ExampleNewExpvarCollector() {

prometheus/gauge.go

@@ -210,7 +210,8 @@ func (v *GaugeVec) GetMetricWith(labels Labels) (Gauge, error) {
 // WithLabelValues works as GetMetricWithLabelValues, but panics where
 // GetMetricWithLabelValues would have returned an error. Not returning an
 // error allows shortcuts like
-//     myVec.WithLabelValues("404", "GET").Add(42)
+//
+//	myVec.WithLabelValues("404", "GET").Add(42)
 func (v *GaugeVec) WithLabelValues(lvs ...string) Gauge {
 	g, err := v.GetMetricWithLabelValues(lvs...)
 	if err != nil {
@@ -221,7 +222,8 @@ func (v *GaugeVec) WithLabelValues(lvs ...string) Gauge {
 
 // With works as GetMetricWith, but panics where GetMetricWithLabels would have
 // returned an error. Not returning an error allows shortcuts like
-//     myVec.With(prometheus.Labels{"code": "404", "method": "GET"}).Add(42)
+//
+//	myVec.With(prometheus.Labels{"code": "404", "method": "GET"}).Add(42)
 func (v *GaugeVec) With(labels Labels) Gauge {
 	g, err := v.GetMetricWith(labels)
 	if err != nil {

prometheus/gen_go_collector_metrics_set.go

@@ -28,8 +28,8 @@ import (
 	"strings"
 	"text/template"
 
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/internal"
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/internal"
 
 	"github.com/hashicorp/go-version"
 )
@@ -137,7 +137,7 @@ func rmCardinality() int {
 		}
 		// Prometheus also doesn't have buckets for -Inf, so they need to be omitted.
 		// See the following PR for more information:
-		// https://github.com/prometheus/client_golang/pull/1049
+		// https://git.internal/re/client_golang/pull/1049
 		if buckets[0] == math.Inf(-1) {
 			cardinality--
 		}

prometheus/go_collector_go116.go

@@ -46,7 +46,7 @@ func NewGoCollector() Collector {
 		eval    func(*runtime.MemStats) float64
 		valType ValueType
 	}{
-		// This metric is omitted in Go1.17+, see https://github.com/prometheus/client_golang/issues/842#issuecomment-861812034
+		// This metric is omitted in Go1.17+, see https://git.internal/re/client_golang/issues/842#issuecomment-861812034
 		desc: NewDesc(
 			memstatNamespace("gc_cpu_fraction"),
 			"The fraction of this program's available CPU time used by the GC since the program started.",

prometheus/go_collector_latest.go

@@ -27,7 +27,7 @@ import (
 	"github.com/golang/protobuf/proto"
 	dto "github.com/prometheus/client_model/go"
 
-	"github.com/prometheus/client_golang/prometheus/internal"
+	"git.internal/re/client_golang/prometheus/internal"
 )
 
 const (
@@ -447,7 +447,7 @@ func memStatsFromRM(ms *runtime.MemStats, rm map[string]*metrics.Sample) {
 	// N.B. GCCPUFraction is intentionally omitted. This metric is not useful,
 	// and often misleading due to the fact that it's an average over the lifetime
 	// of the process.
-	// See https://github.com/prometheus/client_golang/issues/842#issuecomment-861812034
+	// See https://git.internal/re/client_golang/issues/842#issuecomment-861812034
 	// for more details.
 	ms.GCCPUFraction = 0
 }

prometheus/go_collector_latest_test.go

@@ -27,7 +27,7 @@ import (
 
 	dto "github.com/prometheus/client_model/go"
 
-	"github.com/prometheus/client_golang/prometheus/internal"
+	"git.internal/re/client_golang/prometheus/internal"
 )
 
 func TestRmForMemStats(t *testing.T) {

prometheus/graphite/bridge.go

@@ -30,7 +30,7 @@ import (
 
 	dto "github.com/prometheus/client_model/go"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 const (

prometheus/graphite/bridge_test.go

@@ -31,7 +31,7 @@ import (
 
 	"github.com/prometheus/common/model"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 func TestSanitize(t *testing.T) {

prometheus/histogram_test.go

@@ -20,6 +20,7 @@ import (
 	"runtime"
 	"sort"
 	"sync"
+	"sync/atomic"
 	"testing"
 	"testing/quick"
 	"time"
@@ -28,6 +29,8 @@ import (
 	"github.com/golang/protobuf/proto"
 	"google.golang.org/protobuf/types/known/timestamppb"
 
+	"git.internal/re/client_golang/prometheus/internal"
+
 	dto "github.com/prometheus/client_model/go"
 )
 
@@ -167,7 +170,7 @@ func TestHistogramConcurrency(t *testing.T) {
 		start.Add(1)
 		end.Add(concLevel)
 
-		sum := NewHistogram(HistogramOpts{
+		his := NewHistogram(HistogramOpts{
 			Name:    "test_histogram",
 			Help:    "helpless",
 			Buckets: testBuckets,
@@ -188,9 +191,9 @@ func TestHistogramConcurrency(t *testing.T) {
 				start.Wait()
 				for _, v := range vals {
 					if n%2 == 0 {
-						sum.Observe(v)
+						his.Observe(v)
 					} else {
-						sum.(ExemplarObserver).ObserveWithExemplar(v, Labels{"foo": "bar"})
+						his.(ExemplarObserver).ObserveWithExemplar(v, Labels{"foo": "bar"})
 					}
 				}
 				end.Done()
@@ -201,7 +204,7 @@ func TestHistogramConcurrency(t *testing.T) {
 		end.Wait()
 
 		m := &dto.Metric{}
-		sum.Write(m)
+		his.Write(m)
 		if got, want := int(*m.Histogram.SampleCount), total; got != want {
 			t.Errorf("got sample count %d, want %d", got, want)
 		}
@@ -355,13 +358,12 @@ func TestBuckets(t *testing.T) {
 
 	got = ExponentialBucketsRange(1, 100, 10)
 	want = []float64{
-		1.0, 1.6681005372000588, 2.782559402207125,
-		4.641588833612779, 7.742636826811273, 12.915496650148842,
-		21.544346900318846, 35.93813663804629, 59.94842503189414,
-		100.00000000000007,
+		1.0, 1.6681, 2.7825, 4.6415, 7.7426, 12.9154, 21.5443,
+		35.9381, 59.9484, 100.0000,
 	}
-	if !reflect.DeepEqual(got, want) {
-		t.Errorf("exponential buckets range: got %v, want %v", got, want)
+	const epsilon = 0.0001
+	if !internal.AlmostEqualFloat64s(got, want, epsilon) {
+		t.Errorf("exponential buckets range: got %v, want %v (epsilon %f)", got, want, epsilon)
 	}
 }
 
@@ -467,3 +469,408 @@ func TestHistogramExemplar(t *testing.T) {
 		}
 	}
 }
+
+func TestNativeHistogram(t *testing.T) {
+	scenarios := []struct {
+		name             string
+		observations     []float64 // With simulated interval of 1m.
+		factor           float64
+		zeroThreshold    float64
+		maxBuckets       uint32
+		minResetDuration time.Duration
+		maxZeroThreshold float64
+		want             string // String representation of protobuf.
+	}{
+		{
+			name:         "no sparse buckets",
+			observations: []float64{1, 2, 3},
+			factor:       1,
+			want:         `sample_count:3 sample_sum:6 bucket:<cumulative_count:0 upper_bound:0.005 > bucket:<cumulative_count:0 upper_bound:0.01 > bucket:<cumulative_count:0 upper_bound:0.025 > bucket:<cumulative_count:0 upper_bound:0.05 > bucket:<cumulative_count:0 upper_bound:0.1 > bucket:<cumulative_count:0 upper_bound:0.25 > bucket:<cumulative_count:0 upper_bound:0.5 > bucket:<cumulative_count:1 upper_bound:1 > bucket:<cumulative_count:2 upper_bound:2.5 > bucket:<cumulative_count:3 upper_bound:5 > bucket:<cumulative_count:3 upper_bound:10 > `, // Has conventional buckets because there are no sparse buckets.
+		},
+		{
+			name:         "factor 1.1 results in schema 3",
+			observations: []float64{0, 1, 2, 3},
+			factor:       1.1,
+			want:         `sample_count:4 sample_sum:6 schema:3 zero_threshold:2.938735877055719e-39 zero_count:1 positive_span:<offset:0 length:1 > positive_span:<offset:7 length:1 > positive_span:<offset:4 length:1 > positive_delta:1 positive_delta:0 positive_delta:0 `,
+		},
+		{
+			name:         "factor 1.2 results in schema 2",
+			observations: []float64{0, 1, 1.2, 1.4, 1.8, 2},
+			factor:       1.2,
+			want:         `sample_count:6 sample_sum:7.4 schema:2 zero_threshold:2.938735877055719e-39 zero_count:1 positive_span:<offset:0 length:5 > positive_delta:1 positive_delta:-1 positive_delta:2 positive_delta:-2 positive_delta:2 `,
+		},
+		{
+			name: "factor 4 results in schema -1",
+			observations: []float64{
+				0.5, 1, // Bucket 0: (0.25, 1]
+				1.5, 2, 3, 3.5, // Bucket 1: (1, 4]
+				5, 6, 7, // Bucket 2: (4, 16]
+				33.33, // Bucket 3: (16, 64]
+			},
+			factor: 4,
+			want:   `sample_count:10 sample_sum:62.83 schema:-1 zero_threshold:2.938735877055719e-39 zero_count:0 positive_span:<offset:0 length:4 > positive_delta:2 positive_delta:2 positive_delta:-1 positive_delta:-2 `,
+		},
+		{
+			name: "factor 17 results in schema -2",
+			observations: []float64{
+				0.5, 1, // Bucket 0: (0.0625, 1]
+				1.5, 2, 3, 3.5, 5, 6, 7, // Bucket 1: (1, 16]
+				33.33, // Bucket 2: (16, 256]
+			},
+			factor: 17,
+			want:   `sample_count:10 sample_sum:62.83 schema:-2 zero_threshold:2.938735877055719e-39 zero_count:0 positive_span:<offset:0 length:3 > positive_delta:2 positive_delta:5 positive_delta:-6 `,
+		},
+		{
+			name:         "negative buckets",
+			observations: []float64{0, -1, -1.2, -1.4, -1.8, -2},
+			factor:       1.2,
+			want:         `sample_count:6 sample_sum:-7.4 schema:2 zero_threshold:2.938735877055719e-39 zero_count:1 negative_span:<offset:0 length:5 > negative_delta:1 negative_delta:-1 negative_delta:2 negative_delta:-2 negative_delta:2 `,
+		},
+		{
+			name:         "negative and positive buckets",
+			observations: []float64{0, -1, -1.2, -1.4, -1.8, -2, 1, 1.2, 1.4, 1.8, 2},
+			factor:       1.2,
+			want:         `sample_count:11 sample_sum:0 schema:2 zero_threshold:2.938735877055719e-39 zero_count:1 negative_span:<offset:0 length:5 > negative_delta:1 negative_delta:-1 negative_delta:2 negative_delta:-2 negative_delta:2 positive_span:<offset:0 length:5 > positive_delta:1 positive_delta:-1 positive_delta:2 positive_delta:-2 positive_delta:2 `,
+		},
+		{
+			name:          "wide zero bucket",
+			observations:  []float64{0, -1, -1.2, -1.4, -1.8, -2, 1, 1.2, 1.4, 1.8, 2},
+			factor:        1.2,
+			zeroThreshold: 1.4,
+			want:          `sample_count:11 sample_sum:0 schema:2 zero_threshold:1.4 zero_count:7 negative_span:<offset:4 length:1 > negative_delta:2 positive_span:<offset:4 length:1 > positive_delta:2 `,
+		},
+		{
+			name:         "NaN observation",
+			observations: []float64{0, 1, 1.2, 1.4, 1.8, 2, math.NaN()},
+			factor:       1.2,
+			want:         `sample_count:7 sample_sum:nan schema:2 zero_threshold:2.938735877055719e-39 zero_count:1 positive_span:<offset:0 length:5 > positive_delta:1 positive_delta:-1 positive_delta:2 positive_delta:-2 positive_delta:2 `,
+		},
+		{
+			name:         "+Inf observation",
+			observations: []float64{0, 1, 1.2, 1.4, 1.8, 2, math.Inf(+1)},
+			factor:       1.2,
+			want:         `sample_count:7 sample_sum:inf schema:2 zero_threshold:2.938735877055719e-39 zero_count:1 positive_span:<offset:0 length:5 > positive_span:<offset:4092 length:1 > positive_delta:1 positive_delta:-1 positive_delta:2 positive_delta:-2 positive_delta:2 positive_delta:-1 `,
+		},
+		{
+			name:         "-Inf observation",
+			observations: []float64{0, 1, 1.2, 1.4, 1.8, 2, math.Inf(-1)},
+			factor:       1.2,
+			want:         `sample_count:7 sample_sum:-inf schema:2 zero_threshold:2.938735877055719e-39 zero_count:1 negative_span:<offset:4097 length:1 > negative_delta:1 positive_span:<offset:0 length:5 > positive_delta:1 positive_delta:-1 positive_delta:2 positive_delta:-2 positive_delta:2 `,
+		},
+		{
+			name:         "limited buckets but nothing triggered",
+			observations: []float64{0, 1, 1.2, 1.4, 1.8, 2},
+			factor:       1.2,
+			maxBuckets:   4,
+			want:         `sample_count:6 sample_sum:7.4 schema:2 zero_threshold:2.938735877055719e-39 zero_count:1 positive_span:<offset:0 length:5 > positive_delta:1 positive_delta:-1 positive_delta:2 positive_delta:-2 positive_delta:2 `,
+		},
+		{
+			name:         "buckets limited by halving resolution",
+			observations: []float64{0, 1, 1.1, 1.2, 1.4, 1.8, 2, 3},
+			factor:       1.2,
+			maxBuckets:   4,
+			want:         `sample_count:8 sample_sum:11.5 schema:1 zero_threshold:2.938735877055719e-39 zero_count:1 positive_span:<offset:0 length:5 > positive_delta:1 positive_delta:2 positive_delta:-1 positive_delta:-2 positive_delta:1 `,
+		},
+		{
+			name:             "buckets limited by widening the zero bucket",
+			observations:     []float64{0, 1, 1.1, 1.2, 1.4, 1.8, 2, 3},
+			factor:           1.2,
+			maxBuckets:       4,
+			maxZeroThreshold: 1.2,
+			want:             `sample_count:8 sample_sum:11.5 schema:2 zero_threshold:1 zero_count:2 positive_span:<offset:1 length:7 > positive_delta:1 positive_delta:1 positive_delta:-2 positive_delta:2 positive_delta:-2 positive_delta:0 positive_delta:1 `,
+		},
+		{
+			name:             "buckets limited by widening the zero bucket twice",
+			observations:     []float64{0, 1, 1.1, 1.2, 1.4, 1.8, 2, 3, 4},
+			factor:           1.2,
+			maxBuckets:       4,
+			maxZeroThreshold: 1.2,
+			want:             `sample_count:9 sample_sum:15.5 schema:2 zero_threshold:1.189207115002721 zero_count:3 positive_span:<offset:2 length:7 > positive_delta:2 positive_delta:-2 positive_delta:2 positive_delta:-2 positive_delta:0 positive_delta:1 positive_delta:0 `,
+		},
+		{
+			name:             "buckets limited by reset",
+			observations:     []float64{0, 1, 1.1, 1.2, 1.4, 1.8, 2, 3, 4},
+			factor:           1.2,
+			maxBuckets:       4,
+			maxZeroThreshold: 1.2,
+			minResetDuration: 5 * time.Minute,
+			want:             `sample_count:2 sample_sum:7 schema:2 zero_threshold:2.938735877055719e-39 zero_count:0 positive_span:<offset:7 length:2 > positive_delta:1 positive_delta:0 `,
+		},
+		{
+			name:         "limited buckets but nothing triggered, negative observations",
+			observations: []float64{0, -1, -1.2, -1.4, -1.8, -2},
+			factor:       1.2,
+			maxBuckets:   4,
+			want:         `sample_count:6 sample_sum:-7.4 schema:2 zero_threshold:2.938735877055719e-39 zero_count:1 negative_span:<offset:0 length:5 > negative_delta:1 negative_delta:-1 negative_delta:2 negative_delta:-2 negative_delta:2 `,
+		},
+		{
+			name:         "buckets limited by halving resolution, negative observations",
+			observations: []float64{0, -1, -1.1, -1.2, -1.4, -1.8, -2, -3},
+			factor:       1.2,
+			maxBuckets:   4,
+			want:         `sample_count:8 sample_sum:-11.5 schema:1 zero_threshold:2.938735877055719e-39 zero_count:1 negative_span:<offset:0 length:5 > negative_delta:1 negative_delta:2 negative_delta:-1 negative_delta:-2 negative_delta:1 `,
+		},
+		{
+			name:             "buckets limited by widening the zero bucket, negative observations",
+			observations:     []float64{0, -1, -1.1, -1.2, -1.4, -1.8, -2, -3},
+			factor:           1.2,
+			maxBuckets:       4,
+			maxZeroThreshold: 1.2,
+			want:             `sample_count:8 sample_sum:-11.5 schema:2 zero_threshold:1 zero_count:2 negative_span:<offset:1 length:7 > negative_delta:1 negative_delta:1 negative_delta:-2 negative_delta:2 negative_delta:-2 negative_delta:0 negative_delta:1 `,
+		},
+		{
+			name:             "buckets limited by widening the zero bucket twice, negative observations",
+			observations:     []float64{0, -1, -1.1, -1.2, -1.4, -1.8, -2, -3, -4},
+			factor:           1.2,
+			maxBuckets:       4,
+			maxZeroThreshold: 1.2,
+			want:             `sample_count:9 sample_sum:-15.5 schema:2 zero_threshold:1.189207115002721 zero_count:3 negative_span:<offset:2 length:7 > negative_delta:2 negative_delta:-2 negative_delta:2 negative_delta:-2 negative_delta:0 negative_delta:1 negative_delta:0 `,
+		},
+		{
+			name:             "buckets limited by reset, negative observations",
+			observations:     []float64{0, -1, -1.1, -1.2, -1.4, -1.8, -2, -3, -4},
+			factor:           1.2,
+			maxBuckets:       4,
+			maxZeroThreshold: 1.2,
+			minResetDuration: 5 * time.Minute,
+			want:             `sample_count:2 sample_sum:-7 schema:2 zero_threshold:2.938735877055719e-39 zero_count:0 negative_span:<offset:7 length:2 > negative_delta:1 negative_delta:0 `,
+		},
+		{
+			name:             "buckets limited by halving resolution, then reset",
+			observations:     []float64{0, 1, 1.1, 1.2, 1.4, 1.8, 2, 5, 5.1, 3, 4},
+			factor:           1.2,
+			maxBuckets:       4,
+			minResetDuration: 9 * time.Minute,
+			want:             `sample_count:2 sample_sum:7 schema:2 zero_threshold:2.938735877055719e-39 zero_count:0 positive_span:<offset:7 length:2 > positive_delta:1 positive_delta:0 `,
+		},
+		{
+			name:             "buckets limited by widening the zero bucket, then reset",
+			observations:     []float64{0, 1, 1.1, 1.2, 1.4, 1.8, 2, 5, 5.1, 3, 4},
+			factor:           1.2,
+			maxBuckets:       4,
+			maxZeroThreshold: 1.2,
+			minResetDuration: 9 * time.Minute,
+			want:             `sample_count:2 sample_sum:7 schema:2 zero_threshold:2.938735877055719e-39 zero_count:0 positive_span:<offset:7 length:2 > positive_delta:1 positive_delta:0 `,
+		},
+	}
+
+	for _, s := range scenarios {
+		t.Run(s.name, func(t *testing.T) {
+			his := NewHistogram(HistogramOpts{
+				Name:                            "name",
+				Help:                            "help",
+				NativeHistogramBucketFactor:     s.factor,
+				NativeHistogramZeroThreshold:    s.zeroThreshold,
+				NativeHistogramMaxBucketNumber:  s.maxBuckets,
+				NativeHistogramMinResetDuration: s.minResetDuration,
+				NativeHistogramMaxZeroThreshold: s.maxZeroThreshold,
+			})
+			ts := time.Now().Add(30 * time.Second)
+			now := func() time.Time {
+				return ts
+			}
+			his.(*histogram).now = now
+			for _, o := range s.observations {
+				his.Observe(o)
+				ts = ts.Add(time.Minute)
+			}
+			m := &dto.Metric{}
+			if err := his.Write(m); err != nil {
+				t.Fatal("unexpected error writing metric", err)
+			}
+			got := m.Histogram.String()
+			if s.want != got {
+				t.Errorf("want histogram %q, got %q", s.want, got)
+			}
+		})
+	}
+}
+
+func TestNativeHistogramConcurrency(t *testing.T) {
+	if testing.Short() {
+		t.Skip("Skipping test in short mode.")
+	}
+
+	rand.Seed(42)
+
+	it := func(n uint32) bool {
+		mutations := int(n%1e4 + 1e4)
+		concLevel := int(n%5 + 1)
+		total := mutations * concLevel
+
+		var start, end sync.WaitGroup
+		start.Add(1)
+		end.Add(concLevel)
+
+		his := NewHistogram(HistogramOpts{
+			Name:                            "test_native_histogram",
+			Help:                            "This help is sparse.",
+			NativeHistogramBucketFactor:     1.05,
+			NativeHistogramZeroThreshold:    0.0000001,
+			NativeHistogramMaxBucketNumber:  50,
+			NativeHistogramMinResetDuration: time.Hour, // Comment out to test for totals below.
+			NativeHistogramMaxZeroThreshold: 0.001,
+		})
+
+		ts := time.Now().Add(30 * time.Second).Unix()
+		now := func() time.Time {
+			return time.Unix(atomic.LoadInt64(&ts), 0)
+		}
+		his.(*histogram).now = now
+
+		allVars := make([]float64, total)
+		var sampleSum float64
+		for i := 0; i < concLevel; i++ {
+			vals := make([]float64, mutations)
+			for j := 0; j < mutations; j++ {
+				v := rand.NormFloat64()
+				vals[j] = v
+				allVars[i*mutations+j] = v
+				sampleSum += v
+			}
+
+			go func(vals []float64) {
+				start.Wait()
+				for _, v := range vals {
+					// An observation every 1 to 10 seconds.
+					atomic.AddInt64(&ts, rand.Int63n(10)+1)
+					his.Observe(v)
+				}
+				end.Done()
+			}(vals)
+		}
+		sort.Float64s(allVars)
+		start.Done()
+		end.Wait()
+
+		m := &dto.Metric{}
+		his.Write(m)
+
+		// Uncomment these tests for totals only if you have disabled histogram resets above.
+		//
+		// if got, want := int(*m.Histogram.SampleCount), total; got != want {
+		// 	t.Errorf("got sample count %d, want %d", got, want)
+		// }
+		// if got, want := *m.Histogram.SampleSum, sampleSum; math.Abs((got-want)/want) > 0.001 {
+		// 	t.Errorf("got sample sum %f, want %f", got, want)
+		// }
+
+		sumBuckets := int(m.Histogram.GetZeroCount())
+		current := 0
+		for _, delta := range m.Histogram.GetNegativeDelta() {
+			current += int(delta)
+			if current < 0 {
+				t.Fatalf("negative bucket population negative: %d", current)
+			}
+			sumBuckets += current
+		}
+		current = 0
+		for _, delta := range m.Histogram.GetPositiveDelta() {
+			current += int(delta)
+			if current < 0 {
+				t.Fatalf("positive bucket population negative: %d", current)
+			}
+			sumBuckets += current
+		}
+		if got, want := sumBuckets, int(*m.Histogram.SampleCount); got != want {
+			t.Errorf("got bucket population sum %d, want %d", got, want)
+		}
+
+		return true
+	}
+
+	if err := quick.Check(it, nil); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestGetLe(t *testing.T) {
+	scenarios := []struct {
+		key    int
+		schema int32
+		want   float64
+	}{
+		{
+			key:    -1,
+			schema: -1,
+			want:   0.25,
+		},
+		{
+			key:    0,
+			schema: -1,
+			want:   1,
+		},
+		{
+			key:    1,
+			schema: -1,
+			want:   4,
+		},
+		{
+			key:    512,
+			schema: -1,
+			want:   math.MaxFloat64,
+		},
+		{
+			key:    513,
+			schema: -1,
+			want:   math.Inf(+1),
+		},
+		{
+			key:    -1,
+			schema: 0,
+			want:   0.5,
+		},
+		{
+			key:    0,
+			schema: 0,
+			want:   1,
+		},
+		{
+			key:    1,
+			schema: 0,
+			want:   2,
+		},
+		{
+			key:    1024,
+			schema: 0,
+			want:   math.MaxFloat64,
+		},
+		{
+			key:    1025,
+			schema: 0,
+			want:   math.Inf(+1),
+		},
+		{
+			key:    -1,
+			schema: 2,
+			want:   0.8408964152537144,
+		},
+		{
+			key:    0,
+			schema: 2,
+			want:   1,
+		},
+		{
+			key:    1,
+			schema: 2,
+			want:   1.189207115002721,
+		},
+		{
+			key:    4096,
+			schema: 2,
+			want:   math.MaxFloat64,
+		},
+		{
+			key:    4097,
+			schema: 2,
+			want:   math.Inf(+1),
+		},
+	}
+
+	for i, s := range scenarios {
+		got := getLe(s.key, s.schema)
+		if s.want != got {
+			t.Errorf("%d. key %d, schema %d, want upper bound of %g, got %g", i, s.key, s.schema, s.want, got)
+		}
+	}
+}

prometheus/internal/almost_equal.go

@@ -0,0 +1,60 @@
+// Copyright (c) 2015 Björn Rabenstein
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+//
+// The code in this package is copy/paste to avoid a dependency. Hence this file
+// carries the copyright of the original repo.
+// https://github.com/beorn7/floats
+package internal
+
+import (
+	"math"
+)
+
+// minNormalFloat64 is the smallest positive normal value of type float64.
+var minNormalFloat64 = math.Float64frombits(0x0010000000000000)
+
+// AlmostEqualFloat64 returns true if a and b are equal within a relative error
+// of epsilon. See http://floating-point-gui.de/errors/comparison/ for the
+// details of the applied method.
+func AlmostEqualFloat64(a, b, epsilon float64) bool {
+	if a == b {
+		return true
+	}
+	absA := math.Abs(a)
+	absB := math.Abs(b)
+	diff := math.Abs(a - b)
+	if a == 0 || b == 0 || absA+absB < minNormalFloat64 {
+		return diff < epsilon*minNormalFloat64
+	}
+	return diff/math.Min(absA+absB, math.MaxFloat64) < epsilon
+}
+
+// AlmostEqualFloat64s is the slice form of AlmostEqualFloat64.
+func AlmostEqualFloat64s(a, b []float64, epsilon float64) bool {
+	if len(a) != len(b) {
+		return false
+	}
+	for i := range a {
+		if !AlmostEqualFloat64(a[i], b[i], epsilon) {
+			return false
+		}
+	}
+	return true
+}

prometheus/internal/difflib.go

@@ -201,12 +201,15 @@ func (m *SequenceMatcher) isBJunk(s string) bool {
 // If IsJunk is not defined:
 //
 // Return (i,j,k) such that a[i:i+k] is equal to b[j:j+k], where
-//     alo <= i <= i+k <= ahi
-//     blo <= j <= j+k <= bhi
+//
+//	alo <= i <= i+k <= ahi
+//	blo <= j <= j+k <= bhi
+//
 // and for all (i',j',k') meeting those conditions,
-//     k >= k'
-//     i <= i'
-//     and if i == i', j <= j'
+//
+//	k >= k'
+//	i <= i'
+//	and if i == i', j <= j'
 //
 // In other words, of all maximal matching blocks, return one that
 // starts earliest in a, and of all those maximal matching blocks that

prometheus/internal/go_collector_options.go

@@ -22,7 +22,7 @@ type GoCollectorRule struct {
 
 // GoCollectorOptions should not be used be directly by anything, except `collectors` package.
 // Use it via collectors package instead. See issue
-// https://github.com/prometheus/client_golang/issues/1030.
+// https://git.internal/re/client_golang/issues/1030.
 //
 // This is internal, so external users only can use it via `collector.WithGoCollector*` methods
 type GoCollectorOptions struct {

prometheus/labels.go

@@ -25,7 +25,8 @@ import (
 // Labels represents a collection of label name -> value mappings. This type is
 // commonly used with the With(Labels) and GetMetricWith(Labels) methods of
 // metric vector Collectors, e.g.:
-//     myVec.With(Labels{"code": "404", "method": "GET"}).Add(42)
+//
+//	myVec.With(Labels{"code": "404", "method": "GET"}).Add(42)
 //
 // The other use-case is the specification of constant label pairs in Opts or to
 // create a Desc.

prometheus/metric.go

@@ -185,9 +185,9 @@ func (m *withExemplarsMetric) Write(pb *dto.Metric) error {
 			if i < len(pb.Histogram.Bucket) {
 				pb.Histogram.Bucket[i].Exemplar = e
 			} else {
-				// The +Inf bucket should be explicitly added if there is an exemplar for it, similar to non-const histogram logic in https://github.com/prometheus/client_golang/blob/main/prometheus/histogram.go#L357-L365.
+				// The +Inf bucket should be explicitly added if there is an exemplar for it, similar to non-const histogram logic in https://git.internal/re/client_golang/blob/main/prometheus/histogram.go#L357-L365.
 				b := &dto.Bucket{
-					CumulativeCount: proto.Uint64(pb.Histogram.Bucket[len(pb.Histogram.GetBucket())-1].GetCumulativeCount()),
+					CumulativeCount: proto.Uint64(pb.Histogram.GetSampleCount()),
 					UpperBound:      proto.Float64(math.Inf(1)),
 					Exemplar:        e,
 				}

prometheus/metric_test.go

@@ -79,10 +79,14 @@ func TestWithExemplarsMetric(t *testing.T) {
 			}
 		}
 
-		infBucket := metric.GetHistogram().Bucket[len(metric.GetHistogram().Bucket)-1].GetUpperBound()
+		infBucket := metric.GetHistogram().Bucket[len(metric.GetHistogram().Bucket)-1]
 
-		if infBucket != math.Inf(1) {
-			t.Errorf("want %v, got %v", math.Inf(1), infBucket)
+		if want, got := math.Inf(1), infBucket.GetUpperBound(); want != got {
+			t.Errorf("want %v, got %v", want, got)
+		}
+
+		if want, got := uint64(4711), infBucket.GetCumulativeCount(); want != got {
+			t.Errorf("want %v, got %v", want, got)
 		}
 	})
 }

prometheus/promauto/auto.go

@@ -25,103 +25,103 @@
 // The following example is a complete program to create a histogram of normally
 // distributed random numbers from the math/rand package:
 //
-//      package main
+//	package main
 //
-//      import (
-//              "math/rand"
-//              "net/http"
+//	import (
+//	        "math/rand"
+//	        "net/http"
 //
-//              "github.com/prometheus/client_golang/prometheus"
-//              "github.com/prometheus/client_golang/prometheus/promauto"
-//              "github.com/prometheus/client_golang/prometheus/promhttp"
-//      )
+//	        "git.internal/re/client_golang/prometheus"
+//	        "git.internal/re/client_golang/prometheus/promauto"
+//	        "git.internal/re/client_golang/prometheus/promhttp"
+//	)
 //
-//      var histogram = promauto.NewHistogram(prometheus.HistogramOpts{
-//              Name:    "random_numbers",
-//              Help:    "A histogram of normally distributed random numbers.",
-//              Buckets: prometheus.LinearBuckets(-3, .1, 61),
-//      })
+//	var histogram = promauto.NewHistogram(prometheus.HistogramOpts{
+//	        Name:    "random_numbers",
+//	        Help:    "A histogram of normally distributed random numbers.",
+//	        Buckets: prometheus.LinearBuckets(-3, .1, 61),
+//	})
 //
-//      func Random() {
-//              for {
-//                      histogram.Observe(rand.NormFloat64())
-//              }
-//      }
+//	func Random() {
+//	        for {
+//	                histogram.Observe(rand.NormFloat64())
+//	        }
+//	}
 //
-//      func main() {
-//              go Random()
-//              http.Handle("/metrics", promhttp.Handler())
-//              http.ListenAndServe(":1971", nil)
-//      }
+//	func main() {
+//	        go Random()
+//	        http.Handle("/metrics", promhttp.Handler())
+//	        http.ListenAndServe(":1971", nil)
+//	}
 //
 // Prometheus's version of a minimal hello-world program:
 //
-//      package main
+//	package main
 //
-//      import (
-//      	"fmt"
-//      	"net/http"
+//	import (
+//		"fmt"
+//		"net/http"
 //
-//      	"github.com/prometheus/client_golang/prometheus"
-//      	"github.com/prometheus/client_golang/prometheus/promauto"
-//      	"github.com/prometheus/client_golang/prometheus/promhttp"
-//      )
+//		"git.internal/re/client_golang/prometheus"
+//		"git.internal/re/client_golang/prometheus/promauto"
+//		"git.internal/re/client_golang/prometheus/promhttp"
+//	)
 //
-//      func main() {
-//      	http.Handle("/", promhttp.InstrumentHandlerCounter(
-//      		promauto.NewCounterVec(
-//      			prometheus.CounterOpts{
-//      				Name: "hello_requests_total",
-//      				Help: "Total number of hello-world requests by HTTP code.",
-//      			},
-//      			[]string{"code"},
-//      		),
-//      		http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-//      			fmt.Fprint(w, "Hello, world!")
-//      		}),
-//      	))
-//      	http.Handle("/metrics", promhttp.Handler())
-//      	http.ListenAndServe(":1971", nil)
-//      }
+//	func main() {
+//		http.Handle("/", promhttp.InstrumentHandlerCounter(
+//			promauto.NewCounterVec(
+//				prometheus.CounterOpts{
+//					Name: "hello_requests_total",
+//					Help: "Total number of hello-world requests by HTTP code.",
+//				},
+//				[]string{"code"},
+//			),
+//			http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+//				fmt.Fprint(w, "Hello, world!")
+//			}),
+//		))
+//		http.Handle("/metrics", promhttp.Handler())
+//		http.ListenAndServe(":1971", nil)
+//	}
 //
 // A Factory is created with the With(prometheus.Registerer) function, which
 // enables two usage pattern. With(prometheus.Registerer) can be called once per
 // line:
 //
-//        var (
-//        	reg           = prometheus.NewRegistry()
-//        	randomNumbers = promauto.With(reg).NewHistogram(prometheus.HistogramOpts{
-//        		Name:    "random_numbers",
-//        		Help:    "A histogram of normally distributed random numbers.",
-//        		Buckets: prometheus.LinearBuckets(-3, .1, 61),
-//        	})
-//        	requestCount = promauto.With(reg).NewCounterVec(
-//        		prometheus.CounterOpts{
-//        			Name: "http_requests_total",
-//        			Help: "Total number of HTTP requests by status code and method.",
-//        		},
-//        		[]string{"code", "method"},
-//        	)
-//        )
+//	var (
+//		reg           = prometheus.NewRegistry()
+//		randomNumbers = promauto.With(reg).NewHistogram(prometheus.HistogramOpts{
+//			Name:    "random_numbers",
+//			Help:    "A histogram of normally distributed random numbers.",
+//			Buckets: prometheus.LinearBuckets(-3, .1, 61),
+//		})
+//		requestCount = promauto.With(reg).NewCounterVec(
+//			prometheus.CounterOpts{
+//				Name: "http_requests_total",
+//				Help: "Total number of HTTP requests by status code and method.",
+//			},
+//			[]string{"code", "method"},
+//		)
+//	)
 //
 // Or it can be used to create a Factory once to be used multiple times:
 //
-//        var (
-//        	reg           = prometheus.NewRegistry()
-//        	factory       = promauto.With(reg)
-//        	randomNumbers = factory.NewHistogram(prometheus.HistogramOpts{
-//        		Name:    "random_numbers",
-//        		Help:    "A histogram of normally distributed random numbers.",
-//        		Buckets: prometheus.LinearBuckets(-3, .1, 61),
-//        	})
-//        	requestCount = factory.NewCounterVec(
-//        		prometheus.CounterOpts{
-//        			Name: "http_requests_total",
-//        			Help: "Total number of HTTP requests by status code and method.",
-//        		},
-//        		[]string{"code", "method"},
-//        	)
-//        )
+//	var (
+//		reg           = prometheus.NewRegistry()
+//		factory       = promauto.With(reg)
+//		randomNumbers = factory.NewHistogram(prometheus.HistogramOpts{
+//			Name:    "random_numbers",
+//			Help:    "A histogram of normally distributed random numbers.",
+//			Buckets: prometheus.LinearBuckets(-3, .1, 61),
+//		})
+//		requestCount = factory.NewCounterVec(
+//			prometheus.CounterOpts{
+//				Name: "http_requests_total",
+//				Help: "Total number of HTTP requests by status code and method.",
+//			},
+//			[]string{"code", "method"},
+//		)
+//	)
 //
 // This appears very handy. So why are these constructors locked away in a
 // separate package?
@@ -159,7 +159,7 @@
 // Enjoy promauto responsibly!
 package promauto
 
-import "github.com/prometheus/client_golang/prometheus"
+import "git.internal/re/client_golang/prometheus"
 
 // NewCounter works like the function of the same name in the prometheus package
 // but it automatically registers the Counter with the

prometheus/promauto/auto_test.go

@@ -16,7 +16,7 @@ package promauto
 import (
 	"testing"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 func TestNil(t *testing.T) {

prometheus/promhttp/http.go

@@ -43,7 +43,7 @@ import (
 
 	"github.com/prometheus/common/expfmt"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 const (

prometheus/promhttp/http_test.go

@@ -26,7 +26,7 @@ import (
 
 	dto "github.com/prometheus/client_model/go"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 type errorCollector struct{}

prometheus/promhttp/instrument_client.go

@@ -19,7 +19,7 @@ import (
 	"net/http/httptrace"
 	"time"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 // The RoundTripperFunc type is an adapter to allow the use of ordinary

prometheus/promhttp/instrument_client_test.go

@@ -24,8 +24,8 @@ import (
 	"testing"
 	"time"
 
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/testutil"
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/testutil"
 
 	dto "github.com/prometheus/client_model/go"
 	"google.golang.org/protobuf/proto"

prometheus/promhttp/instrument_server.go

@@ -22,7 +22,7 @@ import (
 
 	dto "github.com/prometheus/client_model/go"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 // magicString is used for the hacky label test in checkLabels. Remove once fixed.

prometheus/promhttp/instrument_server_test.go

@@ -21,7 +21,7 @@ import (
 	"net/http/httptest"
 	"testing"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 func TestLabelCheck(t *testing.T) {

prometheus/promhttp/option.go

@@ -16,7 +16,7 @@ package promhttp
 import (
 	"context"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 // Option are used to configure both handler (middleware) or round tripper.

prometheus/promhttp/option_test.go

@@ -17,7 +17,7 @@ import (
 	"log"
 	"net/http"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 func ExampleInstrumentHandlerWithExtraMethods() {

prometheus/push/example_add_from_gatherer_test.go

@@ -17,8 +17,8 @@ import (
 	"fmt"
 	"time"
 
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/push"
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/push"
 )
 
 var (

prometheus/push/examples_test.go

@@ -16,8 +16,8 @@ package push_test
 import (
 	"fmt"
 
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/push"
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/push"
 )
 
 func ExamplePusher_Push() {

prometheus/push/push.go

@@ -15,17 +15,17 @@
 // builder approach. Create a Pusher with New and then add the various options
 // by using its methods, finally calling Add or Push, like this:
 //
-//    // Easy case:
-//    push.New("http://example.org/metrics", "my_job").Gatherer(myRegistry).Push()
+//	// Easy case:
+//	push.New("http://example.org/metrics", "my_job").Gatherer(myRegistry).Push()
 //
-//    // Complex case:
-//    push.New("http://example.org/metrics", "my_job").
-//        Collector(myCollector1).
-//        Collector(myCollector2).
-//        Grouping("zone", "xy").
-//        Client(&myHTTPClient).
-//        BasicAuth("top", "secret").
-//        Add()
+//	// Complex case:
+//	push.New("http://example.org/metrics", "my_job").
+//	    Collector(myCollector1).
+//	    Collector(myCollector2).
+//	    Grouping("zone", "xy").
+//	    Client(&myHTTPClient).
+//	    BasicAuth("top", "secret").
+//	    Add()
 //
 // See the examples section for more detailed examples.
 //
@@ -48,7 +48,7 @@ import (
 	"github.com/prometheus/common/expfmt"
 	"github.com/prometheus/common/model"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 const (

prometheus/push/push_test.go

@@ -23,7 +23,7 @@ import (
 
 	"github.com/prometheus/common/expfmt"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 func TestPush(t *testing.T) {

prometheus/registry.go

@@ -32,7 +32,7 @@ import (
 
 	dto "github.com/prometheus/client_model/go"
 
-	"github.com/prometheus/client_golang/prometheus/internal"
+	"git.internal/re/client_golang/prometheus/internal"
 )
 
 const (

prometheus/registry_test.go

@@ -37,8 +37,8 @@ import (
 	"github.com/golang/protobuf/proto"
 	"github.com/prometheus/common/expfmt"
 
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/promhttp"
 )
 
 // uncheckedCollector wraps a Collector but its Describe method yields no Desc.

prometheus/summary.go

@@ -603,7 +603,8 @@ func (v *SummaryVec) GetMetricWith(labels Labels) (Observer, error) {
 // WithLabelValues works as GetMetricWithLabelValues, but panics where
 // GetMetricWithLabelValues would have returned an error. Not returning an
 // error allows shortcuts like
-//     myVec.WithLabelValues("404", "GET").Observe(42.21)
+//
+//	myVec.WithLabelValues("404", "GET").Observe(42.21)
 func (v *SummaryVec) WithLabelValues(lvs ...string) Observer {
 	s, err := v.GetMetricWithLabelValues(lvs...)
 	if err != nil {
@@ -614,7 +615,8 @@ func (v *SummaryVec) WithLabelValues(lvs ...string) Observer {
 
 // With works as GetMetricWith, but panics where GetMetricWithLabels would have
 // returned an error. Not returning an error allows shortcuts like
-//     myVec.With(prometheus.Labels{"code": "404", "method": "GET"}).Observe(42.21)
+//
+//	myVec.With(prometheus.Labels{"code": "404", "method": "GET"}).Observe(42.21)
 func (v *SummaryVec) With(labels Labels) Observer {
 	s, err := v.GetMetricWith(labels)
 	if err != nil {
@@ -701,7 +703,8 @@ func (s *constSummary) Write(out *dto.Metric) error {
 //
 // quantiles maps ranks to quantile values. For example, a median latency of
 // 0.23s and a 99th percentile latency of 0.56s would be expressed as:
-//     map[float64]float64{0.5: 0.23, 0.99: 0.56}
+//
+//	map[float64]float64{0.5: 0.23, 0.99: 0.56}
 //
 // NewConstSummary returns an error if the length of labelValues is not
 // consistent with the variable labels in Desc or if Desc is invalid.

prometheus/testutil/lint.go

@@ -16,8 +16,8 @@ package testutil
 import (
 	"fmt"
 
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/testutil/promlint"
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/testutil/promlint"
 )
 
 // CollectAndLint registers the provided Collector with a newly created pedantic

prometheus/testutil/lint_test.go

@@ -16,7 +16,7 @@ package testutil
 import (
 	"testing"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 func TestCollectAndLintGood(t *testing.T) {

prometheus/testutil/promlint/promlint_test.go

@@ -19,7 +19,7 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/prometheus/client_golang/prometheus/testutil/promlint"
+	"git.internal/re/client_golang/prometheus/testutil/promlint"
 )
 
 type test struct {

prometheus/testutil/testutil.go

@@ -48,8 +48,8 @@ import (
 	dto "github.com/prometheus/client_model/go"
 	"github.com/prometheus/common/expfmt"
 
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/internal"
+	"git.internal/re/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus/internal"
 )
 
 // ToFloat64 collects all Metrics from the provided Collector. It expects that

prometheus/testutil/testutil_test.go

@@ -20,7 +20,7 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/prometheus/client_golang/prometheus"
+	"git.internal/re/client_golang/prometheus"
 )
 
 type untypedCollector struct{}

prometheus/timer.go

@@ -25,11 +25,12 @@ type Timer struct {
 // NewTimer creates a new Timer. The provided Observer is used to observe a
 // duration in seconds. Timer is usually used to time a function call in the
 // following way:
-//    func TimeMe() {
-//        timer := NewTimer(myHistogram)
-//        defer timer.ObserveDuration()
-//        // Do actual work.
-//    }
+//
+//	func TimeMe() {
+//	    timer := NewTimer(myHistogram)
+//	    defer timer.ObserveDuration()
+//	    // Do actual work.
+//	}
 func NewTimer(o Observer) *Timer {
 	return &Timer{
 		begin:    time.Now(),

prometheus/value.go

@@ -23,7 +23,7 @@ import (
 	"github.com/golang/protobuf/proto"
 	"google.golang.org/protobuf/types/known/timestamppb"
 
-	"github.com/prometheus/client_golang/prometheus/internal"
+	"git.internal/re/client_golang/prometheus/internal"
 
 	dto "github.com/prometheus/client_model/go"
 )

prometheus/wrap.go

@@ -22,7 +22,7 @@ import (
 
 	dto "github.com/prometheus/client_model/go"
 
-	"github.com/prometheus/client_golang/prometheus/internal"
+	"git.internal/re/client_golang/prometheus/internal"
 )
 
 // WrapRegistererWith returns a Registerer wrapping the provided