From a76643bca32e04fa7943cb33c85c880864b760e2 Mon Sep 17 00:00:00 2001 From: Sebastiaan van Stijn Date: Thu, 12 Jun 2025 14:12:33 +0200 Subject: [PATCH] vendor: github.com/prometheus/client_golang v1.22.0 full diff: https://github.com/prometheus/client_golang/compare/v1.20.5...v1.22.0 Signed-off-by: Sebastiaan van Stijn --- vendor.mod | 4 +- vendor.sum | 8 +- .../client_golang/prometheus/collectorfunc.go | 30 +++ .../client_golang/prometheus/desc.go | 15 +- .../prometheus/go_collector_latest.go | 2 +- .../client_golang/prometheus/histogram.go | 249 ++++++++++++++++-- .../prometheus/internal/difflib.go | 19 +- .../prometheus/internal/go_runtime_metrics.go | 3 +- .../client_golang/prometheus/metric.go | 24 +- .../prometheus/process_collector.go | 31 ++- .../prometheus/process_collector_darwin.go | 130 +++++++++ .../process_collector_mem_cgo_darwin.c | 84 ++++++ .../process_collector_mem_cgo_darwin.go | 51 ++++ .../process_collector_mem_nocgo_darwin.go | 39 +++ ....go => process_collector_not_supported.go} | 17 +- ....go => process_collector_procfsenabled.go} | 20 +- .../prometheus/process_collector_windows.go | 21 +- .../client_golang/prometheus/promhttp/http.go | 49 +++- .../internal/compression.go} | 19 +- .../client_golang/prometheus/summary.go | 7 +- .../prometheus/common/expfmt/decode.go | 14 +- .../prometheus/common/expfmt/encode.go | 28 +- .../prometheus/common/expfmt/expfmt.go | 78 ++++-- .../common/expfmt/openmetrics_create.go | 10 +- .../prometheus/common/expfmt/text_create.go | 4 +- .../prometheus/common/expfmt/text_parse.go | 164 ++++++++++-- .../prometheus/common/model/alert.go | 7 +- .../prometheus/common/model/labels.go | 27 +- .../common/model/labelset_string.go | 2 - .../common/model/labelset_string_go120.go | 39 --- .../prometheus/common/model/metric.go | 76 +++--- .../prometheus/common/model/silence.go | 17 +- .../prometheus/common/model/value_float.go | 3 +- .../common/model/value_histogram.go | 7 +- vendor/modules.txt | 9 +- 35 files changed, 1025 insertions(+), 282 deletions(-) create mode 100644 vendor/github.com/prometheus/client_golang/prometheus/collectorfunc.go create mode 100644 vendor/github.com/prometheus/client_golang/prometheus/process_collector_darwin.go create mode 100644 vendor/github.com/prometheus/client_golang/prometheus/process_collector_mem_cgo_darwin.c create mode 100644 vendor/github.com/prometheus/client_golang/prometheus/process_collector_mem_cgo_darwin.go create mode 100644 vendor/github.com/prometheus/client_golang/prometheus/process_collector_mem_nocgo_darwin.go rename vendor/github.com/prometheus/client_golang/prometheus/{process_collector_wasip1.go => process_collector_not_supported.go} (55%) rename vendor/github.com/prometheus/client_golang/prometheus/{process_collector_other.go => process_collector_procfsenabled.go} (77%) rename vendor/github.com/prometheus/client_golang/prometheus/{process_collector_js.go => promhttp/internal/compression.go} (70%) delete mode 100644 vendor/github.com/prometheus/common/model/labelset_string_go120.go diff --git a/vendor.mod b/vendor.mod index 74830b8df8..4b09db254d 100644 --- a/vendor.mod +++ b/vendor.mod @@ -87,9 +87,9 @@ require ( github.com/moby/sys/user v0.4.0 // indirect github.com/moby/sys/userns v0.1.0 // indirect github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect - github.com/prometheus/client_golang v1.20.5 // indirect + github.com/prometheus/client_golang v1.22.0 // indirect github.com/prometheus/client_model v0.6.1 // indirect - github.com/prometheus/common v0.55.0 // indirect + github.com/prometheus/common v0.62.0 // indirect github.com/prometheus/procfs v0.15.1 // indirect github.com/rivo/uniseg v0.2.0 // indirect github.com/russross/blackfriday/v2 v2.1.0 // indirect diff --git a/vendor.sum b/vendor.sum index 291a3b7a3a..3681696ce3 100644 --- a/vendor.sum +++ b/vendor.sum @@ -224,8 +224,8 @@ github.com/prometheus/client_golang v0.9.0-pre1.0.20180209125602-c332b6f63c06/go 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 v1.1.0/go.mod h1:I1FGZT9+L76gKKOs5djB6ezCbFQP1xR9D75/vuwEF3g= -github.com/prometheus/client_golang v1.20.5 h1:cxppBPuYhUnsO6yo/aoRol4L7q7UFfdm+bR9r+8l63Y= -github.com/prometheus/client_golang v1.20.5/go.mod h1:PIEt8X02hGcP8JWbeHyeZ53Y/jReSnHgO035n//V5WE= +github.com/prometheus/client_golang v1.22.0 h1:rb93p9lokFEsctTys46VnV1kLCDpVZ0a/Y92Vm0Zc6Q= +github.com/prometheus/client_golang v1.22.0/go.mod h1:R7ljNsLXhuQXYZYtw6GAE9AZg8Y7vEW5scdCXrWRXC0= github.com/prometheus/client_model v0.0.0-20171117100541-99fa1f4be8e5/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo= github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo= github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA= @@ -234,8 +234,8 @@ github.com/prometheus/client_model v0.6.1/go.mod h1:OrxVMOVHjw3lKMa8+x6HeMGkHMQy github.com/prometheus/common v0.0.0-20180110214958-89604d197083/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro= github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4= github.com/prometheus/common v0.6.0/go.mod h1:eBmuwkDJBwy6iBfxCBob6t6dR6ENT/y+J+Zk0j9GMYc= -github.com/prometheus/common v0.55.0 h1:KEi6DK7lXW/m7Ig5i47x0vRzuBsHuvJdi5ee6Y3G1dc= -github.com/prometheus/common v0.55.0/go.mod h1:2SECS4xJG1kd8XF9IcM1gMX6510RAEL65zxzNImwdc8= +github.com/prometheus/common v0.62.0 h1:xasJaQlnWAeyHdUBeGjXmutelfJHWMRr+Fg4QszZ2Io= +github.com/prometheus/common v0.62.0/go.mod h1:vyBcEuLSvWos9B1+CyL7JZ2up+uFzXhkqml0W5zIY1I= github.com/prometheus/procfs v0.0.0-20180125133057-cb4147076ac7/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk= 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= diff --git a/vendor/github.com/prometheus/client_golang/prometheus/collectorfunc.go b/vendor/github.com/prometheus/client_golang/prometheus/collectorfunc.go new file mode 100644 index 0000000000..9a71a15db1 --- /dev/null +++ b/vendor/github.com/prometheus/client_golang/prometheus/collectorfunc.go @@ -0,0 +1,30 @@ +// Copyright 2025 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package prometheus + +// CollectorFunc is a convenient way to implement a Prometheus Collector +// without interface boilerplate. +// This implementation is based on DescribeByCollect method. +// familiarize yourself to it before using. +type CollectorFunc func(chan<- Metric) + +// Collect calls the defined CollectorFunc function with the provided Metrics channel +func (f CollectorFunc) Collect(ch chan<- Metric) { + f(ch) +} + +// Describe sends the descriptor information using DescribeByCollect +func (f CollectorFunc) Describe(ch chan<- *Desc) { + DescribeByCollect(f, ch) +} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/desc.go b/vendor/github.com/prometheus/client_golang/prometheus/desc.go index 68ffe3c248..ad347113c0 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/desc.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/desc.go @@ -189,12 +189,15 @@ func (d *Desc) String() string { fmt.Sprintf("%s=%q", lp.GetName(), lp.GetValue()), ) } - vlStrings := make([]string, 0, len(d.variableLabels.names)) - for _, vl := range d.variableLabels.names { - if fn, ok := d.variableLabels.labelConstraints[vl]; ok && fn != nil { - vlStrings = append(vlStrings, fmt.Sprintf("c(%s)", vl)) - } else { - vlStrings = append(vlStrings, vl) + vlStrings := []string{} + if d.variableLabels != nil { + vlStrings = make([]string, 0, len(d.variableLabels.names)) + for _, vl := range d.variableLabels.names { + if fn, ok := d.variableLabels.labelConstraints[vl]; ok && fn != nil { + vlStrings = append(vlStrings, fmt.Sprintf("c(%s)", vl)) + } else { + vlStrings = append(vlStrings, vl) + } } } return fmt.Sprintf( diff --git a/vendor/github.com/prometheus/client_golang/prometheus/go_collector_latest.go b/vendor/github.com/prometheus/client_golang/prometheus/go_collector_latest.go index 5117464172..6b8684731c 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/go_collector_latest.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/go_collector_latest.go @@ -288,7 +288,7 @@ func NewGoCollector(opts ...func(o *internal.GoCollectorOptions)) Collector { } func attachOriginalName(desc, origName string) string { - return fmt.Sprintf("%s Sourced from %s", desc, origName) + return fmt.Sprintf("%s Sourced from %s.", desc, origName) } // Describe returns all descriptions of the collector. diff --git a/vendor/github.com/prometheus/client_golang/prometheus/histogram.go b/vendor/github.com/prometheus/client_golang/prometheus/histogram.go index 519db348a7..c453b754a7 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/histogram.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/histogram.go @@ -14,6 +14,7 @@ package prometheus import ( + "errors" "fmt" "math" "runtime" @@ -28,6 +29,11 @@ import ( "google.golang.org/protobuf/types/known/timestamppb" ) +const ( + nativeHistogramSchemaMaximum = 8 + nativeHistogramSchemaMinimum = -4 +) + // nativeHistogramBounds for the frac of observed values. Only relevant for // schema > 0. The position in the slice is the schema. (0 is never used, just // here for convenience of using the schema directly as the index.) @@ -330,11 +336,11 @@ func ExponentialBuckets(start, factor float64, count int) []float64 { // used for the Buckets field of HistogramOpts. // // The function panics if 'count' is 0 or negative, if 'min' is 0 or negative. -func ExponentialBucketsRange(min, max float64, count int) []float64 { +func ExponentialBucketsRange(minBucket, maxBucket float64, count int) []float64 { if count < 1 { panic("ExponentialBucketsRange count needs a positive count") } - if min <= 0 { + if minBucket <= 0 { panic("ExponentialBucketsRange min needs to be greater than 0") } @@ -342,12 +348,12 @@ func ExponentialBucketsRange(min, max float64, count int) []float64 { // max = min*growthFactor^(bucketCount-1) // We know max/min and highest bucket. Solve for growthFactor. - growthFactor := math.Pow(max/min, 1.0/float64(count-1)) + growthFactor := math.Pow(maxBucket/minBucket, 1.0/float64(count-1)) // Now that we know growthFactor, solve for each bucket. buckets := make([]float64, count) for i := 1; i <= count; i++ { - buckets[i-1] = min * math.Pow(growthFactor, float64(i-1)) + buckets[i-1] = minBucket * math.Pow(growthFactor, float64(i-1)) } return buckets } @@ -858,15 +864,35 @@ func (h *histogram) Write(out *dto.Metric) error { // findBucket returns the index of the bucket for the provided value, or // len(h.upperBounds) for the +Inf bucket. func (h *histogram) findBucket(v float64) int { - // TODO(beorn7): For small numbers of buckets (<30), a linear search is - // slightly faster than the binary search. If we really care, we could - // switch from one search strategy to the other depending on the number - // of buckets. - // - // Microbenchmarks (BenchmarkHistogramNoLabels): - // 11 buckets: 38.3 ns/op linear - binary 48.7 ns/op - // 100 buckets: 78.1 ns/op linear - binary 54.9 ns/op - // 300 buckets: 154 ns/op linear - binary 61.6 ns/op + n := len(h.upperBounds) + if n == 0 { + return 0 + } + + // Early exit: if v is less than or equal to the first upper bound, return 0 + if v <= h.upperBounds[0] { + return 0 + } + + // Early exit: if v is greater than the last upper bound, return len(h.upperBounds) + if v > h.upperBounds[n-1] { + return n + } + + // For small arrays, use simple linear search + // "magic number" 35 is result of tests on couple different (AWS and baremetal) servers + // see more details here: https://github.com/prometheus/client_golang/pull/1662 + if n < 35 { + for i, bound := range h.upperBounds { + if v <= bound { + return i + } + } + // If v is greater than all upper bounds, return len(h.upperBounds) + return n + } + + // For larger arrays, use stdlib's binary search return sort.SearchFloat64s(h.upperBounds, v) } @@ -1440,9 +1466,9 @@ func pickSchema(bucketFactor float64) int32 { floor := math.Floor(math.Log2(math.Log2(bucketFactor))) switch { case floor <= -8: - return 8 + return nativeHistogramSchemaMaximum case floor >= 4: - return -4 + return nativeHistogramSchemaMinimum default: return -int32(floor) } @@ -1835,3 +1861,196 @@ func (n *nativeExemplars) addExemplar(e *dto.Exemplar) { n.exemplars = append(n.exemplars[:nIdx], append([]*dto.Exemplar{e}, append(n.exemplars[nIdx:rIdx], n.exemplars[rIdx+1:]...)...)...) } } + +type constNativeHistogram struct { + desc *Desc + dto.Histogram + labelPairs []*dto.LabelPair +} + +func validateCount(sum float64, count uint64, negativeBuckets, positiveBuckets map[int]int64, zeroBucket uint64) error { + var bucketPopulationSum int64 + for _, v := range positiveBuckets { + bucketPopulationSum += v + } + for _, v := range negativeBuckets { + bucketPopulationSum += v + } + bucketPopulationSum += int64(zeroBucket) + + // If the sum of observations is NaN, the number of observations must be greater or equal to the sum of all bucket counts. + // Otherwise, the number of observations must be equal to the sum of all bucket counts . + + if math.IsNaN(sum) && bucketPopulationSum > int64(count) || + !math.IsNaN(sum) && bucketPopulationSum != int64(count) { + return errors.New("the sum of all bucket populations exceeds the count of observations") + } + return nil +} + +// NewConstNativeHistogram returns a metric representing a Prometheus native histogram with +// fixed values for the count, sum, and positive/negative/zero bucket counts. As those parameters +// cannot be changed, the returned value does not implement the Histogram +// interface (but only the Metric interface). Users of this package will not +// have much use for it in regular operations. However, when implementing custom +// OpenTelemetry Collectors, it is useful as a throw-away metric that is generated on the fly +// to send it to Prometheus in the Collect method. +// +// zeroBucket counts all (positive and negative) +// observations in the zero bucket (with an absolute value less or equal +// the current threshold). +// positiveBuckets and negativeBuckets are separate maps for negative and positive +// observations. The map's value is an int64, counting observations in +// that bucket. The map's key is the +// index of the bucket according to the used +// Schema. Index 0 is for an upper bound of 1 in positive buckets and for a lower bound of -1 in negative buckets. +// NewConstNativeHistogram returns an error if +// - the length of labelValues is not consistent with the variable labels in Desc or if Desc is invalid. +// - the schema passed is not between 8 and -4 +// - the sum of counts in all buckets including the zero bucket does not equal the count if sum is not NaN (or exceeds the count if sum is NaN) +// +// See https://opentelemetry.io/docs/specs/otel/compatibility/prometheus_and_openmetrics/#exponential-histograms for more details about the conversion from OTel to Prometheus. +func NewConstNativeHistogram( + desc *Desc, + count uint64, + sum float64, + positiveBuckets, negativeBuckets map[int]int64, + zeroBucket uint64, + schema int32, + zeroThreshold float64, + createdTimestamp time.Time, + labelValues ...string, +) (Metric, error) { + if desc.err != nil { + return nil, desc.err + } + if err := validateLabelValues(labelValues, len(desc.variableLabels.names)); err != nil { + return nil, err + } + if schema > nativeHistogramSchemaMaximum || schema < nativeHistogramSchemaMinimum { + return nil, errors.New("invalid native histogram schema") + } + if err := validateCount(sum, count, negativeBuckets, positiveBuckets, zeroBucket); err != nil { + return nil, err + } + + NegativeSpan, NegativeDelta := makeBucketsFromMap(negativeBuckets) + PositiveSpan, PositiveDelta := makeBucketsFromMap(positiveBuckets) + ret := &constNativeHistogram{ + desc: desc, + Histogram: dto.Histogram{ + CreatedTimestamp: timestamppb.New(createdTimestamp), + Schema: &schema, + ZeroThreshold: &zeroThreshold, + SampleCount: &count, + SampleSum: &sum, + + NegativeSpan: NegativeSpan, + NegativeDelta: NegativeDelta, + + PositiveSpan: PositiveSpan, + PositiveDelta: PositiveDelta, + + ZeroCount: proto.Uint64(zeroBucket), + }, + labelPairs: MakeLabelPairs(desc, labelValues), + } + if *ret.ZeroThreshold == 0 && *ret.ZeroCount == 0 && len(ret.PositiveSpan) == 0 && len(ret.NegativeSpan) == 0 { + ret.PositiveSpan = []*dto.BucketSpan{{ + Offset: proto.Int32(0), + Length: proto.Uint32(0), + }} + } + return ret, nil +} + +// MustNewConstNativeHistogram is a version of NewConstNativeHistogram that panics where +// NewConstNativeHistogram would have returned an error. +func MustNewConstNativeHistogram( + desc *Desc, + count uint64, + sum float64, + positiveBuckets, negativeBuckets map[int]int64, + zeroBucket uint64, + nativeHistogramSchema int32, + nativeHistogramZeroThreshold float64, + createdTimestamp time.Time, + labelValues ...string, +) Metric { + nativehistogram, err := NewConstNativeHistogram(desc, + count, + sum, + positiveBuckets, + negativeBuckets, + zeroBucket, + nativeHistogramSchema, + nativeHistogramZeroThreshold, + createdTimestamp, + labelValues...) + if err != nil { + panic(err) + } + return nativehistogram +} + +func (h *constNativeHistogram) Desc() *Desc { + return h.desc +} + +func (h *constNativeHistogram) Write(out *dto.Metric) error { + out.Histogram = &h.Histogram + out.Label = h.labelPairs + return nil +} + +func makeBucketsFromMap(buckets map[int]int64) ([]*dto.BucketSpan, []int64) { + if len(buckets) == 0 { + return nil, nil + } + var ii []int + for k := range buckets { + ii = append(ii, k) + } + sort.Ints(ii) + + var ( + spans []*dto.BucketSpan + deltas []int64 + prevCount int64 + nextI int + ) + + appendDelta := func(count int64) { + *spans[len(spans)-1].Length++ + deltas = append(deltas, count-prevCount) + prevCount = count + } + + for n, i := range ii { + count := buckets[i] + // Multiple spans with only small gaps in between are probably + // encoded more efficiently as one larger span with a few empty + // buckets. Needs some research to find the sweet spot. For now, + // we assume that gaps of one or two buckets should not create + // a new span. + iDelta := int32(i - nextI) + if n == 0 || iDelta > 2 { + // We have to create a new span, either because we are + // at the very beginning, or because we have found a gap + // of more than two buckets. + spans = append(spans, &dto.BucketSpan{ + Offset: proto.Int32(iDelta), + Length: proto.Uint32(0), + }) + } else { + // We have found a small gap (or no gap at all). + // Insert empty buckets as needed. + for j := int32(0); j < iDelta; j++ { + appendDelta(0) + } + } + appendDelta(count) + nextI = i + 1 + } + return spans, deltas +} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/internal/difflib.go b/vendor/github.com/prometheus/client_golang/prometheus/internal/difflib.go index a595a20362..8b016355ad 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/internal/difflib.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/internal/difflib.go @@ -22,17 +22,18 @@ import ( "bytes" "fmt" "io" + "strconv" "strings" ) -func min(a, b int) int { +func minInt(a, b int) int { if a < b { return a } return b } -func max(a, b int) int { +func maxInt(a, b int) int { if a > b { return a } @@ -427,12 +428,12 @@ func (m *SequenceMatcher) GetGroupedOpCodes(n int) [][]OpCode { if codes[0].Tag == 'e' { c := codes[0] i1, i2, j1, j2 := c.I1, c.I2, c.J1, c.J2 - codes[0] = OpCode{c.Tag, max(i1, i2-n), i2, max(j1, j2-n), j2} + codes[0] = OpCode{c.Tag, maxInt(i1, i2-n), i2, maxInt(j1, j2-n), j2} } if codes[len(codes)-1].Tag == 'e' { c := codes[len(codes)-1] i1, i2, j1, j2 := c.I1, c.I2, c.J1, c.J2 - codes[len(codes)-1] = OpCode{c.Tag, i1, min(i2, i1+n), j1, min(j2, j1+n)} + codes[len(codes)-1] = OpCode{c.Tag, i1, minInt(i2, i1+n), j1, minInt(j2, j1+n)} } nn := n + n groups := [][]OpCode{} @@ -443,12 +444,12 @@ func (m *SequenceMatcher) GetGroupedOpCodes(n int) [][]OpCode { // there is a large range with no changes. if c.Tag == 'e' && i2-i1 > nn { group = append(group, OpCode{ - c.Tag, i1, min(i2, i1+n), - j1, min(j2, j1+n), + c.Tag, i1, minInt(i2, i1+n), + j1, minInt(j2, j1+n), }) groups = append(groups, group) group = []OpCode{} - i1, j1 = max(i1, i2-n), max(j1, j2-n) + i1, j1 = maxInt(i1, i2-n), maxInt(j1, j2-n) } group = append(group, OpCode{c.Tag, i1, i2, j1, j2}) } @@ -515,7 +516,7 @@ func (m *SequenceMatcher) QuickRatio() float64 { // is faster to compute than either .Ratio() or .QuickRatio(). func (m *SequenceMatcher) RealQuickRatio() float64 { la, lb := len(m.a), len(m.b) - return calculateRatio(min(la, lb), la+lb) + return calculateRatio(minInt(la, lb), la+lb) } // Convert range to the "ed" format @@ -524,7 +525,7 @@ func formatRangeUnified(start, stop int) string { beginning := start + 1 // lines start numbering with one length := stop - start if length == 1 { - return fmt.Sprintf("%d", beginning) + return strconv.Itoa(beginning) } if length == 0 { beginning-- // empty ranges begin at line just before the range diff --git a/vendor/github.com/prometheus/client_golang/prometheus/internal/go_runtime_metrics.go b/vendor/github.com/prometheus/client_golang/prometheus/internal/go_runtime_metrics.go index 97d17d6cb6..f7f97ef926 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/internal/go_runtime_metrics.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/internal/go_runtime_metrics.go @@ -66,7 +66,8 @@ func RuntimeMetricsToProm(d *metrics.Description) (string, string, string, bool) name += "_total" } - valid := model.IsValidMetricName(model.LabelValue(namespace + "_" + subsystem + "_" + name)) + // Our current conversion moves to legacy naming, so use legacy validation. + valid := model.IsValidLegacyMetricName(namespace + "_" + subsystem + "_" + name) switch d.Kind { case metrics.KindUint64: case metrics.KindFloat64: diff --git a/vendor/github.com/prometheus/client_golang/prometheus/metric.go b/vendor/github.com/prometheus/client_golang/prometheus/metric.go index 9d9b81ab44..592eec3e24 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/metric.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/metric.go @@ -108,15 +108,23 @@ func BuildFQName(namespace, subsystem, name string) string { if name == "" { return "" } - switch { - case namespace != "" && subsystem != "": - return strings.Join([]string{namespace, subsystem, name}, "_") - case namespace != "": - return strings.Join([]string{namespace, name}, "_") - case subsystem != "": - return strings.Join([]string{subsystem, name}, "_") + + sb := strings.Builder{} + sb.Grow(len(namespace) + len(subsystem) + len(name) + 2) + + if namespace != "" { + sb.WriteString(namespace) + sb.WriteString("_") } - return name + + if subsystem != "" { + sb.WriteString(subsystem) + sb.WriteString("_") + } + + sb.WriteString(name) + + return sb.String() } type invalidMetric struct { diff --git a/vendor/github.com/prometheus/client_golang/prometheus/process_collector.go b/vendor/github.com/prometheus/client_golang/prometheus/process_collector.go index 62a4e7ad9a..e7bce8b58e 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/process_collector.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector.go @@ -23,6 +23,7 @@ import ( type processCollector struct { collectFn func(chan<- Metric) + describeFn func(chan<- *Desc) pidFn func() (int, error) reportErrors bool cpuTotal *Desc @@ -122,26 +123,23 @@ func NewProcessCollector(opts ProcessCollectorOpts) Collector { // Set up process metric collection if supported by the runtime. if canCollectProcess() { c.collectFn = c.processCollect + c.describeFn = c.describe } else { - c.collectFn = func(ch chan<- Metric) { - c.reportError(ch, nil, errors.New("process metrics not supported on this platform")) - } + c.collectFn = c.errorCollectFn + c.describeFn = c.errorDescribeFn } return c } -// Describe returns all descriptions of the collector. -func (c *processCollector) Describe(ch chan<- *Desc) { - ch <- c.cpuTotal - ch <- c.openFDs - ch <- c.maxFDs - ch <- c.vsize - ch <- c.maxVsize - ch <- c.rss - ch <- c.startTime - ch <- c.inBytes - ch <- c.outBytes +func (c *processCollector) errorCollectFn(ch chan<- Metric) { + c.reportError(ch, nil, errors.New("process metrics not supported on this platform")) +} + +func (c *processCollector) errorDescribeFn(ch chan<- *Desc) { + if c.reportErrors { + ch <- NewInvalidDesc(errors.New("process metrics not supported on this platform")) + } } // Collect returns the current state of all metrics of the collector. @@ -149,6 +147,11 @@ func (c *processCollector) Collect(ch chan<- Metric) { c.collectFn(ch) } +// Describe returns all descriptions of the collector. +func (c *processCollector) Describe(ch chan<- *Desc) { + c.describeFn(ch) +} + func (c *processCollector) reportError(ch chan<- Metric, desc *Desc, err error) { if !c.reportErrors { return diff --git a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_darwin.go b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_darwin.go new file mode 100644 index 0000000000..0a61b98461 --- /dev/null +++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_darwin.go @@ -0,0 +1,130 @@ +// Copyright 2024 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 darwin && !ios + +package prometheus + +import ( + "errors" + "fmt" + "os" + "syscall" + "time" + + "golang.org/x/sys/unix" +) + +// notImplementedErr is returned by stub functions that replace cgo functions, when cgo +// isn't available. +var notImplementedErr = errors.New("not implemented") + +type memoryInfo struct { + vsize uint64 // Virtual memory size in bytes + rss uint64 // Resident memory size in bytes +} + +func canCollectProcess() bool { + return true +} + +func getSoftLimit(which int) (uint64, error) { + rlimit := syscall.Rlimit{} + + if err := syscall.Getrlimit(which, &rlimit); err != nil { + return 0, err + } + + return rlimit.Cur, nil +} + +func getOpenFileCount() (float64, error) { + // Alternately, the undocumented proc_pidinfo(PROC_PIDLISTFDS) can be used to + // return a list of open fds, but that requires a way to call C APIs. The + // benefits, however, include fewer system calls and not failing when at the + // open file soft limit. + + if dir, err := os.Open("/dev/fd"); err != nil { + return 0.0, err + } else { + defer dir.Close() + + // Avoid ReadDir(), as it calls stat(2) on each descriptor. Not only is + // that info not used, but KQUEUE descriptors fail stat(2), which causes + // the whole method to fail. + if names, err := dir.Readdirnames(0); err != nil { + return 0.0, err + } else { + // Subtract 1 to ignore the open /dev/fd descriptor above. + return float64(len(names) - 1), nil + } + } +} + +func (c *processCollector) processCollect(ch chan<- Metric) { + if procs, err := unix.SysctlKinfoProcSlice("kern.proc.pid", os.Getpid()); err == nil { + if len(procs) == 1 { + startTime := float64(procs[0].Proc.P_starttime.Nano() / 1e9) + ch <- MustNewConstMetric(c.startTime, GaugeValue, startTime) + } else { + err = fmt.Errorf("sysctl() returned %d proc structs (expected 1)", len(procs)) + c.reportError(ch, c.startTime, err) + } + } else { + c.reportError(ch, c.startTime, err) + } + + // The proc structure returned by kern.proc.pid above has an Rusage member, + // but it is not filled in, so it needs to be fetched by getrusage(2). For + // that call, the UTime, STime, and Maxrss members are filled out, but not + // Ixrss, Idrss, or Isrss for the memory usage. Memory stats will require + // access to the C API to call task_info(TASK_BASIC_INFO). + rusage := unix.Rusage{} + + if err := unix.Getrusage(syscall.RUSAGE_SELF, &rusage); err == nil { + cpuTime := time.Duration(rusage.Stime.Nano() + rusage.Utime.Nano()).Seconds() + ch <- MustNewConstMetric(c.cpuTotal, CounterValue, cpuTime) + } else { + c.reportError(ch, c.cpuTotal, err) + } + + if memInfo, err := getMemory(); err == nil { + ch <- MustNewConstMetric(c.rss, GaugeValue, float64(memInfo.rss)) + ch <- MustNewConstMetric(c.vsize, GaugeValue, float64(memInfo.vsize)) + } else if !errors.Is(err, notImplementedErr) { + // Don't report an error when support is not compiled in. + c.reportError(ch, c.rss, err) + c.reportError(ch, c.vsize, err) + } + + if fds, err := getOpenFileCount(); err == nil { + ch <- MustNewConstMetric(c.openFDs, GaugeValue, fds) + } else { + c.reportError(ch, c.openFDs, err) + } + + if openFiles, err := getSoftLimit(syscall.RLIMIT_NOFILE); err == nil { + ch <- MustNewConstMetric(c.maxFDs, GaugeValue, float64(openFiles)) + } else { + c.reportError(ch, c.maxFDs, err) + } + + if addressSpace, err := getSoftLimit(syscall.RLIMIT_AS); err == nil { + ch <- MustNewConstMetric(c.maxVsize, GaugeValue, float64(addressSpace)) + } else { + c.reportError(ch, c.maxVsize, err) + } + + // TODO: socket(PF_SYSTEM) to fetch "com.apple.network.statistics" might + // be able to get the per-process network send/receive counts. +} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_mem_cgo_darwin.c b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_mem_cgo_darwin.c new file mode 100644 index 0000000000..d00a24315d --- /dev/null +++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_mem_cgo_darwin.c @@ -0,0 +1,84 @@ +// Copyright 2024 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 darwin && !ios && cgo + +#include +#include +#include + +// The compiler warns that mach/shared_memory_server.h is deprecated, and to use +// mach/shared_region.h instead. But that doesn't define +// SHARED_DATA_REGION_SIZE or SHARED_TEXT_REGION_SIZE, so redefine them here and +// avoid a warning message when running tests. +#define GLOBAL_SHARED_TEXT_SEGMENT 0x90000000U +#define SHARED_DATA_REGION_SIZE 0x10000000 +#define SHARED_TEXT_REGION_SIZE 0x10000000 + + +int get_memory_info(unsigned long long *rss, unsigned long long *vsize) +{ + // This is lightly adapted from how ps(1) obtains its memory info. + // https://github.com/apple-oss-distributions/adv_cmds/blob/8744084ea0ff41ca4bb96b0f9c22407d0e48e9b7/ps/tasks.c#L109 + + kern_return_t error; + task_t task = MACH_PORT_NULL; + mach_task_basic_info_data_t info; + mach_msg_type_number_t info_count = MACH_TASK_BASIC_INFO_COUNT; + + error = task_info( + mach_task_self(), + MACH_TASK_BASIC_INFO, + (task_info_t) &info, + &info_count ); + + if( error != KERN_SUCCESS ) + { + return error; + } + + *rss = info.resident_size; + *vsize = info.virtual_size; + + { + vm_region_basic_info_data_64_t b_info; + mach_vm_address_t address = GLOBAL_SHARED_TEXT_SEGMENT; + mach_vm_size_t size; + mach_port_t object_name; + + /* + * try to determine if this task has the split libraries + * mapped in... if so, adjust its virtual size down by + * the 2 segments that are used for split libraries + */ + info_count = VM_REGION_BASIC_INFO_COUNT_64; + + error = mach_vm_region( + mach_task_self(), + &address, + &size, + VM_REGION_BASIC_INFO_64, + (vm_region_info_t) &b_info, + &info_count, + &object_name); + + if (error == KERN_SUCCESS) { + if (b_info.reserved && size == (SHARED_TEXT_REGION_SIZE) && + *vsize > (SHARED_TEXT_REGION_SIZE + SHARED_DATA_REGION_SIZE)) { + *vsize -= (SHARED_TEXT_REGION_SIZE + SHARED_DATA_REGION_SIZE); + } + } + } + + return 0; +} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_mem_cgo_darwin.go b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_mem_cgo_darwin.go new file mode 100644 index 0000000000..9ac53f9992 --- /dev/null +++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_mem_cgo_darwin.go @@ -0,0 +1,51 @@ +// Copyright 2024 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 darwin && !ios && cgo + +package prometheus + +/* +int get_memory_info(unsigned long long *rss, unsigned long long *vs); +*/ +import "C" +import "fmt" + +func getMemory() (*memoryInfo, error) { + var rss, vsize C.ulonglong + + if err := C.get_memory_info(&rss, &vsize); err != 0 { + return nil, fmt.Errorf("task_info() failed with 0x%x", int(err)) + } + + return &memoryInfo{vsize: uint64(vsize), rss: uint64(rss)}, nil +} + +// describe returns all descriptions of the collector for Darwin. +// Ensure that this list of descriptors is kept in sync with the metrics collected +// in the processCollect method. Any changes to the metrics in processCollect +// (such as adding or removing metrics) should be reflected in this list of descriptors. +func (c *processCollector) describe(ch chan<- *Desc) { + ch <- c.cpuTotal + ch <- c.openFDs + ch <- c.maxFDs + ch <- c.maxVsize + ch <- c.startTime + ch <- c.rss + ch <- c.vsize + + /* the process could be collected but not implemented yet + ch <- c.inBytes + ch <- c.outBytes + */ +} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_mem_nocgo_darwin.go b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_mem_nocgo_darwin.go new file mode 100644 index 0000000000..8ddb0995d6 --- /dev/null +++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_mem_nocgo_darwin.go @@ -0,0 +1,39 @@ +// Copyright 2024 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 darwin && !ios && !cgo + +package prometheus + +func getMemory() (*memoryInfo, error) { + return nil, notImplementedErr +} + +// describe returns all descriptions of the collector for Darwin. +// Ensure that this list of descriptors is kept in sync with the metrics collected +// in the processCollect method. Any changes to the metrics in processCollect +// (such as adding or removing metrics) should be reflected in this list of descriptors. +func (c *processCollector) describe(ch chan<- *Desc) { + ch <- c.cpuTotal + ch <- c.openFDs + ch <- c.maxFDs + ch <- c.maxVsize + ch <- c.startTime + + /* the process could be collected but not implemented yet + ch <- c.rss + ch <- c.vsize + ch <- c.inBytes + ch <- c.outBytes + */ +} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_wasip1.go b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_not_supported.go similarity index 55% rename from vendor/github.com/prometheus/client_golang/prometheus/process_collector_wasip1.go rename to vendor/github.com/prometheus/client_golang/prometheus/process_collector_not_supported.go index d8d9a6d7a2..7732b7f376 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_wasip1.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_not_supported.go @@ -11,8 +11,8 @@ // See the License for the specific language governing permissions and // limitations under the License. -//go:build wasip1 -// +build wasip1 +//go:build wasip1 || js || ios +// +build wasip1 js ios package prometheus @@ -20,7 +20,14 @@ func canCollectProcess() bool { return false } -func (*processCollector) processCollect(chan<- Metric) { - // noop on this platform - return +func (c *processCollector) processCollect(ch chan<- Metric) { + c.errorCollectFn(ch) +} + +// describe returns all descriptions of the collector for wasip1 and js. +// Ensure that this list of descriptors is kept in sync with the metrics collected +// in the processCollect method. Any changes to the metrics in processCollect +// (such as adding or removing metrics) should be reflected in this list of descriptors. +func (c *processCollector) describe(ch chan<- *Desc) { + c.errorDescribeFn(ch) } diff --git a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_other.go b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_procfsenabled.go similarity index 77% rename from vendor/github.com/prometheus/client_golang/prometheus/process_collector_other.go rename to vendor/github.com/prometheus/client_golang/prometheus/process_collector_procfsenabled.go index 14d56d2d06..9f4b130bef 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_other.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_procfsenabled.go @@ -11,8 +11,8 @@ // See the License for the specific language governing permissions and // limitations under the License. -//go:build !windows && !js && !wasip1 -// +build !windows,!js,!wasip1 +//go:build !windows && !js && !wasip1 && !darwin +// +build !windows,!js,!wasip1,!darwin package prometheus @@ -78,3 +78,19 @@ func (c *processCollector) processCollect(ch chan<- Metric) { c.reportError(ch, nil, err) } } + +// describe returns all descriptions of the collector for others than windows, js, wasip1 and darwin. +// Ensure that this list of descriptors is kept in sync with the metrics collected +// in the processCollect method. Any changes to the metrics in processCollect +// (such as adding or removing metrics) should be reflected in this list of descriptors. +func (c *processCollector) describe(ch chan<- *Desc) { + ch <- c.cpuTotal + ch <- c.openFDs + ch <- c.maxFDs + ch <- c.vsize + ch <- c.maxVsize + ch <- c.rss + ch <- c.startTime + ch <- c.inBytes + ch <- c.outBytes +} diff --git a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_windows.go b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_windows.go index f973398df2..fa474289ef 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_windows.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_windows.go @@ -79,14 +79,10 @@ func getProcessHandleCount(handle windows.Handle) (uint32, error) { } func (c *processCollector) processCollect(ch chan<- Metric) { - h, err := windows.GetCurrentProcess() - if err != nil { - c.reportError(ch, nil, err) - return - } + h := windows.CurrentProcess() var startTime, exitTime, kernelTime, userTime windows.Filetime - err = windows.GetProcessTimes(h, &startTime, &exitTime, &kernelTime, &userTime) + err := windows.GetProcessTimes(h, &startTime, &exitTime, &kernelTime, &userTime) if err != nil { c.reportError(ch, nil, err) return @@ -111,6 +107,19 @@ func (c *processCollector) processCollect(ch chan<- Metric) { ch <- MustNewConstMetric(c.maxFDs, GaugeValue, float64(16*1024*1024)) // Windows has a hard-coded max limit, not per-process. } +// describe returns all descriptions of the collector for windows. +// Ensure that this list of descriptors is kept in sync with the metrics collected +// in the processCollect method. Any changes to the metrics in processCollect +// (such as adding or removing metrics) should be reflected in this list of descriptors. +func (c *processCollector) describe(ch chan<- *Desc) { + ch <- c.cpuTotal + ch <- c.openFDs + ch <- c.maxFDs + ch <- c.vsize + ch <- c.rss + ch <- c.startTime +} + func fileTimeToSeconds(ft windows.Filetime) float64 { return float64(uint64(ft.HighDateTime)<<32+uint64(ft.LowDateTime)) / 1e7 } diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go index e598e66e68..763d99e362 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go @@ -41,11 +41,11 @@ import ( "sync" "time" - "github.com/klauspost/compress/zstd" "github.com/prometheus/common/expfmt" "github.com/prometheus/client_golang/internal/github.com/golang/gddo/httputil" "github.com/prometheus/client_golang/prometheus" + "github.com/prometheus/client_golang/prometheus/promhttp/internal" ) const ( @@ -65,7 +65,13 @@ const ( Zstd Compression = "zstd" ) -var defaultCompressionFormats = []Compression{Identity, Gzip, Zstd} +func defaultCompressionFormats() []Compression { + if internal.NewZstdWriter != nil { + return []Compression{Identity, Gzip, Zstd} + } else { + return []Compression{Identity, Gzip} + } +} var gzipPool = sync.Pool{ New: func() interface{} { @@ -138,7 +144,7 @@ func HandlerForTransactional(reg prometheus.TransactionalGatherer, opts HandlerO // Select compression formats to offer based on default or user choice. var compressions []string if !opts.DisableCompression { - offers := defaultCompressionFormats + offers := defaultCompressionFormats() if len(opts.OfferedCompressions) > 0 { offers = opts.OfferedCompressions } @@ -207,7 +213,13 @@ func HandlerForTransactional(reg prometheus.TransactionalGatherer, opts HandlerO if encodingHeader != string(Identity) { rsp.Header().Set(contentEncodingHeader, encodingHeader) } - enc := expfmt.NewEncoder(w, contentType) + + var enc expfmt.Encoder + if opts.EnableOpenMetricsTextCreatedSamples { + enc = expfmt.NewEncoder(w, contentType, expfmt.WithCreatedLines()) + } else { + enc = expfmt.NewEncoder(w, contentType) + } // handleError handles the error according to opts.ErrorHandling // and returns true if we have to abort after the handling. @@ -408,6 +420,21 @@ type HandlerOpts struct { // (which changes the identity of the resulting series on the Prometheus // server). EnableOpenMetrics bool + // EnableOpenMetricsTextCreatedSamples specifies if this handler should add, extra, synthetic + // Created Timestamps for counters, histograms and summaries, which for the current + // version of OpenMetrics are defined as extra series with the same name and "_created" + // suffix. See also the OpenMetrics specification for more details + // https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#counter-1 + // + // Created timestamps are used to improve the accuracy of reset detection, + // but the way it's designed in OpenMetrics 1.0 it also dramatically increases cardinality + // if the scraper does not handle those metrics correctly (converting to created timestamp + // instead of leaving those series as-is). New OpenMetrics versions might improve + // this situation. + // + // Prometheus introduced the feature flag 'created-timestamp-zero-ingestion' + // in version 2.50.0 to handle this situation. + EnableOpenMetricsTextCreatedSamples bool // ProcessStartTime allows setting process start timevalue that will be exposed // with "Process-Start-Time-Unix" response header along with the metrics // payload. This allow callers to have efficient transformations to cumulative @@ -445,14 +472,12 @@ func negotiateEncodingWriter(r *http.Request, rw io.Writer, compressions []strin switch selected { case "zstd": - // TODO(mrueg): Replace klauspost/compress with stdlib implementation once https://github.com/golang/go/issues/62513 is implemented. - z, err := zstd.NewWriter(rw, zstd.WithEncoderLevel(zstd.SpeedFastest)) - if err != nil { - return nil, "", func() {}, err + if internal.NewZstdWriter == nil { + // The content encoding was not implemented yet. + return nil, "", func() {}, fmt.Errorf("content compression format not recognized: %s. Valid formats are: %s", selected, defaultCompressionFormats()) } - - z.Reset(rw) - return z, selected, func() { _ = z.Close() }, nil + writer, closeWriter, err := internal.NewZstdWriter(rw) + return writer, selected, closeWriter, err case "gzip": gz := gzipPool.Get().(*gzip.Writer) gz.Reset(rw) @@ -462,6 +487,6 @@ func negotiateEncodingWriter(r *http.Request, rw io.Writer, compressions []strin return rw, selected, func() {}, nil default: // The content encoding was not implemented yet. - return nil, "", func() {}, fmt.Errorf("content compression format not recognized: %s. Valid formats are: %s", selected, defaultCompressionFormats) + return nil, "", func() {}, fmt.Errorf("content compression format not recognized: %s. Valid formats are: %s", selected, defaultCompressionFormats()) } } diff --git a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_js.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/internal/compression.go similarity index 70% rename from vendor/github.com/prometheus/client_golang/prometheus/process_collector_js.go rename to vendor/github.com/prometheus/client_golang/prometheus/promhttp/internal/compression.go index b1e363d6cf..c5039590f7 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_js.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/internal/compression.go @@ -1,4 +1,4 @@ -// Copyright 2019 The Prometheus Authors +// Copyright 2025 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 @@ -11,16 +11,11 @@ // See the License for the specific language governing permissions and // limitations under the License. -//go:build js -// +build js +package internal -package prometheus +import ( + "io" +) -func canCollectProcess() bool { - return false -} - -func (c *processCollector) processCollect(ch chan<- Metric) { - // noop on this platform - return -} +// NewZstdWriter enables zstd write support if non-nil. +var NewZstdWriter func(rw io.Writer) (_ io.Writer, closeWriter func(), _ error) diff --git a/vendor/github.com/prometheus/client_golang/prometheus/summary.go b/vendor/github.com/prometheus/client_golang/prometheus/summary.go index 1ab0e47965..ac5203c6fa 100644 --- a/vendor/github.com/prometheus/client_golang/prometheus/summary.go +++ b/vendor/github.com/prometheus/client_golang/prometheus/summary.go @@ -243,6 +243,7 @@ func newSummary(desc *Desc, opts SummaryOpts, labelValues ...string) Summary { s := &summary{ desc: desc, + now: opts.now, objectives: opts.Objectives, sortedObjectives: make([]float64, 0, len(opts.Objectives)), @@ -280,6 +281,8 @@ type summary struct { desc *Desc + now func() time.Time + objectives map[float64]float64 sortedObjectives []float64 @@ -307,7 +310,7 @@ func (s *summary) Observe(v float64) { s.bufMtx.Lock() defer s.bufMtx.Unlock() - now := time.Now() + now := s.now() if now.After(s.hotBufExpTime) { s.asyncFlush(now) } @@ -326,7 +329,7 @@ func (s *summary) Write(out *dto.Metric) error { s.bufMtx.Lock() s.mtx.Lock() // Swap bufs even if hotBuf is empty to set new hotBufExpTime. - s.swapBufs(time.Now()) + s.swapBufs(s.now()) s.bufMtx.Unlock() s.flushColdBuf() diff --git a/vendor/github.com/prometheus/common/expfmt/decode.go b/vendor/github.com/prometheus/common/expfmt/decode.go index 25cfaa2164..1448439b7f 100644 --- a/vendor/github.com/prometheus/common/expfmt/decode.go +++ b/vendor/github.com/prometheus/common/expfmt/decode.go @@ -45,7 +45,7 @@ func ResponseFormat(h http.Header) Format { mediatype, params, err := mime.ParseMediaType(ct) if err != nil { - return fmtUnknown + return FmtUnknown } const textType = "text/plain" @@ -53,21 +53,21 @@ func ResponseFormat(h http.Header) Format { switch mediatype { case ProtoType: if p, ok := params["proto"]; ok && p != ProtoProtocol { - return fmtUnknown + return FmtUnknown } if e, ok := params["encoding"]; ok && e != "delimited" { - return fmtUnknown + return FmtUnknown } - return fmtProtoDelim + return FmtProtoDelim case textType: if v, ok := params["version"]; ok && v != TextVersion { - return fmtUnknown + return FmtUnknown } - return fmtText + return FmtText } - return fmtUnknown + return FmtUnknown } // NewDecoder returns a new decoder based on the given input format. diff --git a/vendor/github.com/prometheus/common/expfmt/encode.go b/vendor/github.com/prometheus/common/expfmt/encode.go index ff5ef7a9d9..d7f3d76f55 100644 --- a/vendor/github.com/prometheus/common/expfmt/encode.go +++ b/vendor/github.com/prometheus/common/expfmt/encode.go @@ -68,7 +68,7 @@ func Negotiate(h http.Header) Format { if escapeParam := ac.Params[model.EscapingKey]; escapeParam != "" { switch Format(escapeParam) { case model.AllowUTF8, model.EscapeUnderscores, model.EscapeDots, model.EscapeValues: - escapingScheme = Format(fmt.Sprintf("; escaping=%s", escapeParam)) + escapingScheme = Format("; escaping=" + escapeParam) default: // If the escaping parameter is unknown, ignore it. } @@ -77,18 +77,18 @@ func Negotiate(h http.Header) Format { if ac.Type+"/"+ac.SubType == ProtoType && ac.Params["proto"] == ProtoProtocol { switch ac.Params["encoding"] { case "delimited": - return fmtProtoDelim + escapingScheme + return FmtProtoDelim + escapingScheme case "text": - return fmtProtoText + escapingScheme + return FmtProtoText + escapingScheme case "compact-text": - return fmtProtoCompact + escapingScheme + return FmtProtoCompact + escapingScheme } } if ac.Type == "text" && ac.SubType == "plain" && (ver == TextVersion || ver == "") { - return fmtText + escapingScheme + return FmtText + escapingScheme } } - return fmtText + escapingScheme + return FmtText + escapingScheme } // NegotiateIncludingOpenMetrics works like Negotiate but includes @@ -101,7 +101,7 @@ func NegotiateIncludingOpenMetrics(h http.Header) Format { if escapeParam := ac.Params[model.EscapingKey]; escapeParam != "" { switch Format(escapeParam) { case model.AllowUTF8, model.EscapeUnderscores, model.EscapeDots, model.EscapeValues: - escapingScheme = Format(fmt.Sprintf("; escaping=%s", escapeParam)) + escapingScheme = Format("; escaping=" + escapeParam) default: // If the escaping parameter is unknown, ignore it. } @@ -110,26 +110,26 @@ func NegotiateIncludingOpenMetrics(h http.Header) Format { if ac.Type+"/"+ac.SubType == ProtoType && ac.Params["proto"] == ProtoProtocol { switch ac.Params["encoding"] { case "delimited": - return fmtProtoDelim + escapingScheme + return FmtProtoDelim + escapingScheme case "text": - return fmtProtoText + escapingScheme + return FmtProtoText + escapingScheme case "compact-text": - return fmtProtoCompact + escapingScheme + return FmtProtoCompact + escapingScheme } } if ac.Type == "text" && ac.SubType == "plain" && (ver == TextVersion || ver == "") { - return fmtText + escapingScheme + return FmtText + escapingScheme } if ac.Type+"/"+ac.SubType == OpenMetricsType && (ver == OpenMetricsVersion_0_0_1 || ver == OpenMetricsVersion_1_0_0 || ver == "") { switch ver { case OpenMetricsVersion_1_0_0: - return fmtOpenMetrics_1_0_0 + escapingScheme + return FmtOpenMetrics_1_0_0 + escapingScheme default: - return fmtOpenMetrics_0_0_1 + escapingScheme + return FmtOpenMetrics_0_0_1 + escapingScheme } } } - return fmtText + escapingScheme + return FmtText + escapingScheme } // NewEncoder returns a new encoder based on content type negotiation. All diff --git a/vendor/github.com/prometheus/common/expfmt/expfmt.go b/vendor/github.com/prometheus/common/expfmt/expfmt.go index 051b38cd17..b26886560d 100644 --- a/vendor/github.com/prometheus/common/expfmt/expfmt.go +++ b/vendor/github.com/prometheus/common/expfmt/expfmt.go @@ -15,7 +15,7 @@ package expfmt import ( - "fmt" + "errors" "strings" "github.com/prometheus/common/model" @@ -32,24 +32,31 @@ type Format string // it on the wire, new content-type strings will have to be agreed upon and // added here. const ( - TextVersion = "0.0.4" - ProtoType = `application/vnd.google.protobuf` - ProtoProtocol = `io.prometheus.client.MetricFamily` - protoFmt = ProtoType + "; proto=" + ProtoProtocol + ";" + TextVersion = "0.0.4" + ProtoType = `application/vnd.google.protobuf` + ProtoProtocol = `io.prometheus.client.MetricFamily` + // Deprecated: Use expfmt.NewFormat(expfmt.TypeProtoCompact) instead. + ProtoFmt = ProtoType + "; proto=" + ProtoProtocol + ";" OpenMetricsType = `application/openmetrics-text` OpenMetricsVersion_0_0_1 = "0.0.1" OpenMetricsVersion_1_0_0 = "1.0.0" - // The Content-Type values for the different wire protocols. Note that these - // values are now unexported. If code was relying on comparisons to these - // constants, instead use FormatType(). - fmtUnknown Format = `` - fmtText Format = `text/plain; version=` + TextVersion + `; charset=utf-8` - fmtProtoDelim Format = protoFmt + ` encoding=delimited` - fmtProtoText Format = protoFmt + ` encoding=text` - fmtProtoCompact Format = protoFmt + ` encoding=compact-text` - fmtOpenMetrics_1_0_0 Format = OpenMetricsType + `; version=` + OpenMetricsVersion_1_0_0 + `; charset=utf-8` - fmtOpenMetrics_0_0_1 Format = OpenMetricsType + `; version=` + OpenMetricsVersion_0_0_1 + `; charset=utf-8` + // The Content-Type values for the different wire protocols. Do not do direct + // comparisons to these constants, instead use the comparison functions. + // Deprecated: Use expfmt.NewFormat(expfmt.TypeUnknown) instead. + FmtUnknown Format = `` + // Deprecated: Use expfmt.NewFormat(expfmt.TypeTextPlain) instead. + FmtText Format = `text/plain; version=` + TextVersion + `; charset=utf-8` + // Deprecated: Use expfmt.NewFormat(expfmt.TypeProtoDelim) instead. + FmtProtoDelim Format = ProtoFmt + ` encoding=delimited` + // Deprecated: Use expfmt.NewFormat(expfmt.TypeProtoText) instead. + FmtProtoText Format = ProtoFmt + ` encoding=text` + // Deprecated: Use expfmt.NewFormat(expfmt.TypeProtoCompact) instead. + FmtProtoCompact Format = ProtoFmt + ` encoding=compact-text` + // Deprecated: Use expfmt.NewFormat(expfmt.TypeOpenMetrics) instead. + FmtOpenMetrics_1_0_0 Format = OpenMetricsType + `; version=` + OpenMetricsVersion_1_0_0 + `; charset=utf-8` + // Deprecated: Use expfmt.NewFormat(expfmt.TypeOpenMetrics) instead. + FmtOpenMetrics_0_0_1 Format = OpenMetricsType + `; version=` + OpenMetricsVersion_0_0_1 + `; charset=utf-8` ) const ( @@ -79,17 +86,17 @@ const ( func NewFormat(t FormatType) Format { switch t { case TypeProtoCompact: - return fmtProtoCompact + return FmtProtoCompact case TypeProtoDelim: - return fmtProtoDelim + return FmtProtoDelim case TypeProtoText: - return fmtProtoText + return FmtProtoText case TypeTextPlain: - return fmtText + return FmtText case TypeOpenMetrics: - return fmtOpenMetrics_1_0_0 + return FmtOpenMetrics_1_0_0 default: - return fmtUnknown + return FmtUnknown } } @@ -97,12 +104,35 @@ func NewFormat(t FormatType) Format { // specified version number. func NewOpenMetricsFormat(version string) (Format, error) { if version == OpenMetricsVersion_0_0_1 { - return fmtOpenMetrics_0_0_1, nil + return FmtOpenMetrics_0_0_1, nil } if version == OpenMetricsVersion_1_0_0 { - return fmtOpenMetrics_1_0_0, nil + return FmtOpenMetrics_1_0_0, nil } - return fmtUnknown, fmt.Errorf("unknown open metrics version string") + return FmtUnknown, errors.New("unknown open metrics version string") +} + +// WithEscapingScheme returns a copy of Format with the specified escaping +// scheme appended to the end. If an escaping scheme already exists it is +// removed. +func (f Format) WithEscapingScheme(s model.EscapingScheme) Format { + var terms []string + for _, p := range strings.Split(string(f), ";") { + toks := strings.Split(p, "=") + if len(toks) != 2 { + trimmed := strings.TrimSpace(p) + if len(trimmed) > 0 { + terms = append(terms, trimmed) + } + continue + } + key := strings.TrimSpace(toks[0]) + if key != model.EscapingKey { + terms = append(terms, strings.TrimSpace(p)) + } + } + terms = append(terms, model.EscapingKey+"="+s.String()) + return Format(strings.Join(terms, "; ")) } // FormatType deduces an overall FormatType for the given format. diff --git a/vendor/github.com/prometheus/common/expfmt/openmetrics_create.go b/vendor/github.com/prometheus/common/expfmt/openmetrics_create.go index 353c5e93f9..a21ed4ec1f 100644 --- a/vendor/github.com/prometheus/common/expfmt/openmetrics_create.go +++ b/vendor/github.com/prometheus/common/expfmt/openmetrics_create.go @@ -38,7 +38,7 @@ type EncoderOption func(*encoderOption) // WithCreatedLines is an EncoderOption that configures the OpenMetrics encoder // to include _created lines (See -// https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#counter-1). +// https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#counter-1). // Created timestamps can improve the accuracy of series reset detection, but // come with a bandwidth cost. // @@ -102,7 +102,7 @@ func WithUnit() EncoderOption { // // - According to the OM specs, the `# UNIT` line is optional, but if populated, // the unit has to be present in the metric name as its suffix: -// (see https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#unit). +// (see https://github.com/prometheus/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#unit). // However, in order to accommodate any potential scenario where such a change in the // metric name is not desirable, the users are here given the choice of either explicitly // opt in, in case they wish for the unit to be included in the output AND in the metric name @@ -152,8 +152,8 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily, options ...E if metricType == dto.MetricType_COUNTER && strings.HasSuffix(compliantName, "_total") { compliantName = name[:len(name)-6] } - if toOM.withUnit && in.Unit != nil && !strings.HasSuffix(compliantName, fmt.Sprintf("_%s", *in.Unit)) { - compliantName = compliantName + fmt.Sprintf("_%s", *in.Unit) + if toOM.withUnit && in.Unit != nil && !strings.HasSuffix(compliantName, "_"+*in.Unit) { + compliantName = compliantName + "_" + *in.Unit } // Comments, first HELP, then TYPE. @@ -477,7 +477,7 @@ func writeOpenMetricsNameAndLabelPairs( if name != "" { // If the name does not pass the legacy validity check, we must put the // metric name inside the braces, quoted. - if !model.IsValidLegacyMetricName(model.LabelValue(name)) { + if !model.IsValidLegacyMetricName(name) { metricInsideBraces = true err := w.WriteByte(separator) written++ diff --git a/vendor/github.com/prometheus/common/expfmt/text_create.go b/vendor/github.com/prometheus/common/expfmt/text_create.go index f9b8265a9e..4b86434b33 100644 --- a/vendor/github.com/prometheus/common/expfmt/text_create.go +++ b/vendor/github.com/prometheus/common/expfmt/text_create.go @@ -354,7 +354,7 @@ func writeNameAndLabelPairs( if name != "" { // If the name does not pass the legacy validity check, we must put the // metric name inside the braces. - if !model.IsValidLegacyMetricName(model.LabelValue(name)) { + if !model.IsValidLegacyMetricName(name) { metricInsideBraces = true err := w.WriteByte(separator) written++ @@ -498,7 +498,7 @@ func writeInt(w enhancedWriter, i int64) (int, error) { // writeName writes a string as-is if it complies with the legacy naming // scheme, or escapes it in double quotes if not. func writeName(w enhancedWriter, name string) (int, error) { - if model.IsValidLegacyMetricName(model.LabelValue(name)) { + if model.IsValidLegacyMetricName(name) { return w.WriteString(name) } var written int diff --git a/vendor/github.com/prometheus/common/expfmt/text_parse.go b/vendor/github.com/prometheus/common/expfmt/text_parse.go index 26490211af..b4607fe4d2 100644 --- a/vendor/github.com/prometheus/common/expfmt/text_parse.go +++ b/vendor/github.com/prometheus/common/expfmt/text_parse.go @@ -22,9 +22,9 @@ import ( "math" "strconv" "strings" + "unicode/utf8" dto "github.com/prometheus/client_model/go" - "google.golang.org/protobuf/proto" "github.com/prometheus/common/model" @@ -60,6 +60,7 @@ type TextParser struct { currentMF *dto.MetricFamily currentMetric *dto.Metric currentLabelPair *dto.LabelPair + currentLabelPairs []*dto.LabelPair // Temporarily stores label pairs while parsing a metric line. // The remaining member variables are only used for summaries/histograms. currentLabels map[string]string // All labels including '__name__' but excluding 'quantile'/'le' @@ -74,6 +75,9 @@ type TextParser struct { // count and sum of that summary/histogram. currentIsSummaryCount, currentIsSummarySum bool currentIsHistogramCount, currentIsHistogramSum bool + // These indicate if the metric name from the current line being parsed is inside + // braces and if that metric name was found respectively. + currentMetricIsInsideBraces, currentMetricInsideBracesIsPresent bool } // TextToMetricFamilies reads 'in' as the simple and flat text-based exchange @@ -137,12 +141,15 @@ func (p *TextParser) reset(in io.Reader) { } p.currentQuantile = math.NaN() p.currentBucket = math.NaN() + p.currentMF = nil } // startOfLine represents the state where the next byte read from p.buf is the // start of a line (or whitespace leading up to it). func (p *TextParser) startOfLine() stateFn { p.lineCount++ + p.currentMetricIsInsideBraces = false + p.currentMetricInsideBracesIsPresent = false if p.skipBlankTab(); p.err != nil { // This is the only place that we expect to see io.EOF, // which is not an error but the signal that we are done. @@ -158,6 +165,9 @@ func (p *TextParser) startOfLine() stateFn { return p.startComment case '\n': return p.startOfLine // Empty line, start the next one. + case '{': + p.currentMetricIsInsideBraces = true + return p.readingLabels } return p.readingMetricName } @@ -275,6 +285,8 @@ func (p *TextParser) startLabelName() stateFn { return nil // Unexpected end of input. } if p.currentByte == '}' { + p.currentMetric.Label = append(p.currentMetric.Label, p.currentLabelPairs...) + p.currentLabelPairs = nil if p.skipBlankTab(); p.err != nil { return nil // Unexpected end of input. } @@ -287,6 +299,45 @@ func (p *TextParser) startLabelName() stateFn { p.parseError(fmt.Sprintf("invalid label name for metric %q", p.currentMF.GetName())) return nil } + if p.skipBlankTabIfCurrentBlankTab(); p.err != nil { + return nil // Unexpected end of input. + } + if p.currentByte != '=' { + if p.currentMetricIsInsideBraces { + if p.currentMetricInsideBracesIsPresent { + p.parseError(fmt.Sprintf("multiple metric names for metric %q", p.currentMF.GetName())) + return nil + } + switch p.currentByte { + case ',': + p.setOrCreateCurrentMF() + if p.currentMF.Type == nil { + p.currentMF.Type = dto.MetricType_UNTYPED.Enum() + } + p.currentMetric = &dto.Metric{} + p.currentMetricInsideBracesIsPresent = true + return p.startLabelName + case '}': + p.setOrCreateCurrentMF() + if p.currentMF.Type == nil { + p.currentMF.Type = dto.MetricType_UNTYPED.Enum() + } + p.currentMetric = &dto.Metric{} + p.currentMetric.Label = append(p.currentMetric.Label, p.currentLabelPairs...) + p.currentLabelPairs = nil + if p.skipBlankTab(); p.err != nil { + return nil // Unexpected end of input. + } + return p.readingValue + default: + p.parseError(fmt.Sprintf("unexpected end of metric name %q", p.currentByte)) + return nil + } + } + p.parseError(fmt.Sprintf("expected '=' after label name, found %q", p.currentByte)) + p.currentLabelPairs = nil + return nil + } p.currentLabelPair = &dto.LabelPair{Name: proto.String(p.currentToken.String())} if p.currentLabelPair.GetName() == string(model.MetricNameLabel) { p.parseError(fmt.Sprintf("label name %q is reserved", model.MetricNameLabel)) @@ -296,23 +347,17 @@ func (p *TextParser) startLabelName() stateFn { // labels to 'real' labels. if !(p.currentMF.GetType() == dto.MetricType_SUMMARY && p.currentLabelPair.GetName() == model.QuantileLabel) && !(p.currentMF.GetType() == dto.MetricType_HISTOGRAM && p.currentLabelPair.GetName() == model.BucketLabel) { - p.currentMetric.Label = append(p.currentMetric.Label, p.currentLabelPair) - } - if p.skipBlankTabIfCurrentBlankTab(); p.err != nil { - return nil // Unexpected end of input. - } - if p.currentByte != '=' { - p.parseError(fmt.Sprintf("expected '=' after label name, found %q", p.currentByte)) - return nil + p.currentLabelPairs = append(p.currentLabelPairs, p.currentLabelPair) } // Check for duplicate label names. labels := make(map[string]struct{}) - for _, l := range p.currentMetric.Label { + for _, l := range p.currentLabelPairs { lName := l.GetName() if _, exists := labels[lName]; !exists { labels[lName] = struct{}{} } else { p.parseError(fmt.Sprintf("duplicate label names for metric %q", p.currentMF.GetName())) + p.currentLabelPairs = nil return nil } } @@ -345,6 +390,7 @@ func (p *TextParser) startLabelValue() stateFn { if p.currentQuantile, p.err = parseFloat(p.currentLabelPair.GetValue()); p.err != nil { // Create a more helpful error message. p.parseError(fmt.Sprintf("expected float as value for 'quantile' label, got %q", p.currentLabelPair.GetValue())) + p.currentLabelPairs = nil return nil } } else { @@ -371,12 +417,19 @@ func (p *TextParser) startLabelValue() stateFn { return p.startLabelName case '}': + if p.currentMF == nil { + p.parseError("invalid metric name") + return nil + } + p.currentMetric.Label = append(p.currentMetric.Label, p.currentLabelPairs...) + p.currentLabelPairs = nil if p.skipBlankTab(); p.err != nil { return nil // Unexpected end of input. } return p.readingValue default: p.parseError(fmt.Sprintf("unexpected end of label value %q", p.currentLabelPair.GetValue())) + p.currentLabelPairs = nil return nil } } @@ -585,6 +638,8 @@ func (p *TextParser) readTokenUntilNewline(recognizeEscapeSequence bool) { p.currentToken.WriteByte(p.currentByte) case 'n': p.currentToken.WriteByte('\n') + case '"': + p.currentToken.WriteByte('"') default: p.parseError(fmt.Sprintf("invalid escape sequence '\\%c'", p.currentByte)) return @@ -610,13 +665,45 @@ func (p *TextParser) readTokenUntilNewline(recognizeEscapeSequence bool) { // but not into p.currentToken. func (p *TextParser) readTokenAsMetricName() { p.currentToken.Reset() + // A UTF-8 metric name must be quoted and may have escaped characters. + quoted := false + escaped := false if !isValidMetricNameStart(p.currentByte) { return } - for { - p.currentToken.WriteByte(p.currentByte) + for p.err == nil { + if escaped { + switch p.currentByte { + case '\\': + p.currentToken.WriteByte(p.currentByte) + case 'n': + p.currentToken.WriteByte('\n') + case '"': + p.currentToken.WriteByte('"') + default: + p.parseError(fmt.Sprintf("invalid escape sequence '\\%c'", p.currentByte)) + return + } + escaped = false + } else { + switch p.currentByte { + case '"': + quoted = !quoted + if !quoted { + p.currentByte, p.err = p.buf.ReadByte() + return + } + case '\n': + p.parseError(fmt.Sprintf("metric name %q contains unescaped new-line", p.currentToken.String())) + return + case '\\': + escaped = true + default: + p.currentToken.WriteByte(p.currentByte) + } + } p.currentByte, p.err = p.buf.ReadByte() - if p.err != nil || !isValidMetricNameContinuation(p.currentByte) { + if !isValidMetricNameContinuation(p.currentByte, quoted) || (!quoted && p.currentByte == ' ') { return } } @@ -628,13 +715,45 @@ func (p *TextParser) readTokenAsMetricName() { // but not into p.currentToken. func (p *TextParser) readTokenAsLabelName() { p.currentToken.Reset() + // A UTF-8 label name must be quoted and may have escaped characters. + quoted := false + escaped := false if !isValidLabelNameStart(p.currentByte) { return } - for { - p.currentToken.WriteByte(p.currentByte) + for p.err == nil { + if escaped { + switch p.currentByte { + case '\\': + p.currentToken.WriteByte(p.currentByte) + case 'n': + p.currentToken.WriteByte('\n') + case '"': + p.currentToken.WriteByte('"') + default: + p.parseError(fmt.Sprintf("invalid escape sequence '\\%c'", p.currentByte)) + return + } + escaped = false + } else { + switch p.currentByte { + case '"': + quoted = !quoted + if !quoted { + p.currentByte, p.err = p.buf.ReadByte() + return + } + case '\n': + p.parseError(fmt.Sprintf("label name %q contains unescaped new-line", p.currentToken.String())) + return + case '\\': + escaped = true + default: + p.currentToken.WriteByte(p.currentByte) + } + } p.currentByte, p.err = p.buf.ReadByte() - if p.err != nil || !isValidLabelNameContinuation(p.currentByte) { + if !isValidLabelNameContinuation(p.currentByte, quoted) || (!quoted && p.currentByte == '=') { return } } @@ -660,6 +779,7 @@ func (p *TextParser) readTokenAsLabelValue() { p.currentToken.WriteByte('\n') default: p.parseError(fmt.Sprintf("invalid escape sequence '\\%c'", p.currentByte)) + p.currentLabelPairs = nil return } escaped = false @@ -718,19 +838,19 @@ func (p *TextParser) setOrCreateCurrentMF() { } func isValidLabelNameStart(b byte) bool { - return (b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' + return (b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' || b == '"' } -func isValidLabelNameContinuation(b byte) bool { - return isValidLabelNameStart(b) || (b >= '0' && b <= '9') +func isValidLabelNameContinuation(b byte, quoted bool) bool { + return isValidLabelNameStart(b) || (b >= '0' && b <= '9') || (quoted && utf8.ValidString(string(b))) } func isValidMetricNameStart(b byte) bool { return isValidLabelNameStart(b) || b == ':' } -func isValidMetricNameContinuation(b byte) bool { - return isValidLabelNameContinuation(b) || b == ':' +func isValidMetricNameContinuation(b byte, quoted bool) bool { + return isValidLabelNameContinuation(b, quoted) || b == ':' } func isBlankOrTab(b byte) bool { @@ -775,7 +895,7 @@ func histogramMetricName(name string) string { func parseFloat(s string) (float64, error) { if strings.ContainsAny(s, "pP_") { - return 0, fmt.Errorf("unsupported character in float") + return 0, errors.New("unsupported character in float") } return strconv.ParseFloat(s, 64) } diff --git a/vendor/github.com/prometheus/common/model/alert.go b/vendor/github.com/prometheus/common/model/alert.go index 80d1fe944e..bd3a39e3e1 100644 --- a/vendor/github.com/prometheus/common/model/alert.go +++ b/vendor/github.com/prometheus/common/model/alert.go @@ -14,6 +14,7 @@ package model import ( + "errors" "fmt" "time" ) @@ -89,16 +90,16 @@ func (a *Alert) StatusAt(ts time.Time) AlertStatus { // Validate checks whether the alert data is inconsistent. func (a *Alert) Validate() error { if a.StartsAt.IsZero() { - return fmt.Errorf("start time missing") + return errors.New("start time missing") } if !a.EndsAt.IsZero() && a.EndsAt.Before(a.StartsAt) { - return fmt.Errorf("start time must be before end time") + return errors.New("start time must be before end time") } if err := a.Labels.Validate(); err != nil { return fmt.Errorf("invalid label set: %w", err) } if len(a.Labels) == 0 { - return fmt.Errorf("at least one label pair required") + return errors.New("at least one label pair required") } if err := a.Annotations.Validate(); err != nil { return fmt.Errorf("invalid annotations: %w", err) diff --git a/vendor/github.com/prometheus/common/model/labels.go b/vendor/github.com/prometheus/common/model/labels.go index 3317ce22ff..73b7aa3e60 100644 --- a/vendor/github.com/prometheus/common/model/labels.go +++ b/vendor/github.com/prometheus/common/model/labels.go @@ -97,26 +97,35 @@ var LabelNameRE = regexp.MustCompile("^[a-zA-Z_][a-zA-Z0-9_]*$") // therewith. type LabelName string -// IsValid returns true iff name matches the pattern of LabelNameRE for legacy -// names, and iff it's valid UTF-8 if NameValidationScheme is set to -// UTF8Validation. For the legacy matching, it does not use LabelNameRE for the -// check but a much faster hardcoded implementation. +// IsValid returns true iff the name matches the pattern of LabelNameRE when +// NameValidationScheme is set to LegacyValidation, or valid UTF-8 if +// NameValidationScheme is set to UTF8Validation. func (ln LabelName) IsValid() bool { if len(ln) == 0 { return false } switch NameValidationScheme { case LegacyValidation: - for i, b := range ln { - if !((b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' || (b >= '0' && b <= '9' && i > 0)) { - return false - } - } + return ln.IsValidLegacy() case UTF8Validation: return utf8.ValidString(string(ln)) default: panic(fmt.Sprintf("Invalid name validation scheme requested: %d", NameValidationScheme)) } +} + +// IsValidLegacy returns true iff name matches the pattern of LabelNameRE for +// legacy names. It does not use LabelNameRE for the check but a much faster +// hardcoded implementation. +func (ln LabelName) IsValidLegacy() bool { + if len(ln) == 0 { + return false + } + for i, b := range ln { + if !((b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' || (b >= '0' && b <= '9' && i > 0)) { + return false + } + } return true } diff --git a/vendor/github.com/prometheus/common/model/labelset_string.go b/vendor/github.com/prometheus/common/model/labelset_string.go index 481c47b46e..abb2c90018 100644 --- a/vendor/github.com/prometheus/common/model/labelset_string.go +++ b/vendor/github.com/prometheus/common/model/labelset_string.go @@ -11,8 +11,6 @@ // See the License for the specific language governing permissions and // limitations under the License. -//go:build go1.21 - package model import ( diff --git a/vendor/github.com/prometheus/common/model/labelset_string_go120.go b/vendor/github.com/prometheus/common/model/labelset_string_go120.go deleted file mode 100644 index c4212685e7..0000000000 --- a/vendor/github.com/prometheus/common/model/labelset_string_go120.go +++ /dev/null @@ -1,39 +0,0 @@ -// Copyright 2024 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 !go1.21 - -package model - -import ( - "fmt" - "sort" - "strings" -) - -// String was optimized using functions not available for go 1.20 -// or lower. We keep the old implementation for compatibility with client_golang. -// Once client golang drops support for go 1.20 (scheduled for August 2024), this -// file can be removed. -func (l LabelSet) String() string { - labelNames := make([]string, 0, len(l)) - for name := range l { - labelNames = append(labelNames, string(name)) - } - sort.Strings(labelNames) - lstrs := make([]string, 0, len(l)) - for _, name := range labelNames { - lstrs = append(lstrs, fmt.Sprintf("%s=%q", name, l[LabelName(name)])) - } - return fmt.Sprintf("{%s}", strings.Join(lstrs, ", ")) -} diff --git a/vendor/github.com/prometheus/common/model/metric.go b/vendor/github.com/prometheus/common/model/metric.go index eb865e5a59..5766107cf9 100644 --- a/vendor/github.com/prometheus/common/model/metric.go +++ b/vendor/github.com/prometheus/common/model/metric.go @@ -14,9 +14,11 @@ package model import ( + "errors" "fmt" "regexp" "sort" + "strconv" "strings" "unicode/utf8" @@ -26,18 +28,21 @@ import ( var ( // NameValidationScheme determines the method of name validation to be used by - // all calls to IsValidMetricName() and LabelName IsValid(). Setting UTF-8 mode - // in isolation from other components that don't support UTF-8 may result in - // bugs or other undefined behavior. This value is intended to be set by - // UTF-8-aware binaries as part of their startup. To avoid need for locking, - // this value should be set once, ideally in an init(), before multiple - // goroutines are started. - NameValidationScheme = LegacyValidation + // all calls to IsValidMetricName() and LabelName IsValid(). Setting UTF-8 + // mode in isolation from other components that don't support UTF-8 may result + // in bugs or other undefined behavior. This value can be set to + // LegacyValidation during startup if a binary is not UTF-8-aware binaries. To + // avoid need for locking, this value should be set once, ideally in an + // init(), before multiple goroutines are started. + NameValidationScheme = UTF8Validation - // NameEscapingScheme defines the default way that names will be - // escaped when presented to systems that do not support UTF-8 names. If the - // Content-Type "escaping" term is specified, that will override this value. - NameEscapingScheme = ValueEncodingEscaping + // NameEscapingScheme defines the default way that names will be escaped when + // presented to systems that do not support UTF-8 names. If the Content-Type + // "escaping" term is specified, that will override this value. + // NameEscapingScheme should not be set to the NoEscaping value. That string + // is used in content negotiation to indicate that a system supports UTF-8 and + // has that feature enabled. + NameEscapingScheme = UnderscoreEscaping ) // ValidationScheme is a Go enum for determining how metric and label names will @@ -161,7 +166,7 @@ func (m Metric) FastFingerprint() Fingerprint { func IsValidMetricName(n LabelValue) bool { switch NameValidationScheme { case LegacyValidation: - return IsValidLegacyMetricName(n) + return IsValidLegacyMetricName(string(n)) case UTF8Validation: if len(n) == 0 { return false @@ -176,7 +181,7 @@ func IsValidMetricName(n LabelValue) bool { // legacy validation scheme regardless of the value of NameValidationScheme. // This function, however, does not use MetricNameRE for the check but a much // faster hardcoded implementation. -func IsValidLegacyMetricName(n LabelValue) bool { +func IsValidLegacyMetricName(n string) bool { if len(n) == 0 { return false } @@ -208,7 +213,7 @@ func EscapeMetricFamily(v *dto.MetricFamily, scheme EscapingScheme) *dto.MetricF } // If the name is nil, copy as-is, don't try to escape. - if v.Name == nil || IsValidLegacyMetricName(LabelValue(v.GetName())) { + if v.Name == nil || IsValidLegacyMetricName(v.GetName()) { out.Name = v.Name } else { out.Name = proto.String(EscapeName(v.GetName(), scheme)) @@ -230,7 +235,7 @@ func EscapeMetricFamily(v *dto.MetricFamily, scheme EscapingScheme) *dto.MetricF for _, l := range m.Label { if l.GetName() == MetricNameLabel { - if l.Value == nil || IsValidLegacyMetricName(LabelValue(l.GetValue())) { + if l.Value == nil || IsValidLegacyMetricName(l.GetValue()) { escaped.Label = append(escaped.Label, l) continue } @@ -240,7 +245,7 @@ func EscapeMetricFamily(v *dto.MetricFamily, scheme EscapingScheme) *dto.MetricF }) continue } - if l.Name == nil || IsValidLegacyMetricName(LabelValue(l.GetName())) { + if l.Name == nil || IsValidLegacyMetricName(l.GetName()) { escaped.Label = append(escaped.Label, l) continue } @@ -256,20 +261,16 @@ func EscapeMetricFamily(v *dto.MetricFamily, scheme EscapingScheme) *dto.MetricF func metricNeedsEscaping(m *dto.Metric) bool { for _, l := range m.Label { - if l.GetName() == MetricNameLabel && !IsValidLegacyMetricName(LabelValue(l.GetValue())) { + if l.GetName() == MetricNameLabel && !IsValidLegacyMetricName(l.GetValue()) { return true } - if !IsValidLegacyMetricName(LabelValue(l.GetName())) { + if !IsValidLegacyMetricName(l.GetName()) { return true } } return false } -const ( - lowerhex = "0123456789abcdef" -) - // EscapeName escapes the incoming name according to the provided escaping // scheme. Depending on the rules of escaping, this may cause no change in the // string that is returned. (Especially NoEscaping, which by definition is a @@ -283,7 +284,7 @@ func EscapeName(name string, scheme EscapingScheme) string { case NoEscaping: return name case UnderscoreEscaping: - if IsValidLegacyMetricName(LabelValue(name)) { + if IsValidLegacyMetricName(name) { return name } for i, b := range name { @@ -304,31 +305,25 @@ func EscapeName(name string, scheme EscapingScheme) string { } else if isValidLegacyRune(b, i) { escaped.WriteRune(b) } else { - escaped.WriteRune('_') + escaped.WriteString("__") } } return escaped.String() case ValueEncodingEscaping: - if IsValidLegacyMetricName(LabelValue(name)) { + if IsValidLegacyMetricName(name) { return name } escaped.WriteString("U__") for i, b := range name { - if isValidLegacyRune(b, i) { + if b == '_' { + escaped.WriteString("__") + } else if isValidLegacyRune(b, i) { escaped.WriteRune(b) } else if !utf8.ValidRune(b) { escaped.WriteString("_FFFD_") - } else if b < 0x100 { + } else { escaped.WriteRune('_') - for s := 4; s >= 0; s -= 4 { - escaped.WriteByte(lowerhex[b>>uint(s)&0xF]) - } - escaped.WriteRune('_') - } else if b < 0x10000 { - escaped.WriteRune('_') - for s := 12; s >= 0; s -= 4 { - escaped.WriteByte(lowerhex[b>>uint(s)&0xF]) - } + escaped.WriteString(strconv.FormatInt(int64(b), 16)) escaped.WriteRune('_') } } @@ -386,8 +381,9 @@ func UnescapeName(name string, scheme EscapingScheme) string { // We think we are in a UTF-8 code, process it. var utf8Val uint for j := 0; i < len(escapedName); j++ { - // This is too many characters for a utf8 value. - if j > 4 { + // This is too many characters for a utf8 value based on the MaxRune + // value of '\U0010FFFF'. + if j >= 6 { return name } // Found a closing underscore, convert to a rune, check validity, and append. @@ -440,7 +436,7 @@ func (e EscapingScheme) String() string { func ToEscapingScheme(s string) (EscapingScheme, error) { if s == "" { - return NoEscaping, fmt.Errorf("got empty string instead of escaping scheme") + return NoEscaping, errors.New("got empty string instead of escaping scheme") } switch s { case AllowUTF8: @@ -452,6 +448,6 @@ func ToEscapingScheme(s string) (EscapingScheme, error) { case EscapeValues: return ValueEncodingEscaping, nil default: - return NoEscaping, fmt.Errorf("unknown format scheme " + s) + return NoEscaping, fmt.Errorf("unknown format scheme %s", s) } } diff --git a/vendor/github.com/prometheus/common/model/silence.go b/vendor/github.com/prometheus/common/model/silence.go index 910b0b71fc..8f91a9702e 100644 --- a/vendor/github.com/prometheus/common/model/silence.go +++ b/vendor/github.com/prometheus/common/model/silence.go @@ -15,6 +15,7 @@ package model import ( "encoding/json" + "errors" "fmt" "regexp" "time" @@ -34,7 +35,7 @@ func (m *Matcher) UnmarshalJSON(b []byte) error { } if len(m.Name) == 0 { - return fmt.Errorf("label name in matcher must not be empty") + return errors.New("label name in matcher must not be empty") } if m.IsRegex { if _, err := regexp.Compile(m.Value); err != nil { @@ -77,7 +78,7 @@ type Silence struct { // Validate returns true iff all fields of the silence have valid values. func (s *Silence) Validate() error { if len(s.Matchers) == 0 { - return fmt.Errorf("at least one matcher required") + return errors.New("at least one matcher required") } for _, m := range s.Matchers { if err := m.Validate(); err != nil { @@ -85,22 +86,22 @@ func (s *Silence) Validate() error { } } if s.StartsAt.IsZero() { - return fmt.Errorf("start time missing") + return errors.New("start time missing") } if s.EndsAt.IsZero() { - return fmt.Errorf("end time missing") + return errors.New("end time missing") } if s.EndsAt.Before(s.StartsAt) { - return fmt.Errorf("start time must be before end time") + return errors.New("start time must be before end time") } if s.CreatedBy == "" { - return fmt.Errorf("creator information missing") + return errors.New("creator information missing") } if s.Comment == "" { - return fmt.Errorf("comment missing") + return errors.New("comment missing") } if s.CreatedAt.IsZero() { - return fmt.Errorf("creation timestamp missing") + return errors.New("creation timestamp missing") } return nil } diff --git a/vendor/github.com/prometheus/common/model/value_float.go b/vendor/github.com/prometheus/common/model/value_float.go index ae35cc2ab4..6bfc757d18 100644 --- a/vendor/github.com/prometheus/common/model/value_float.go +++ b/vendor/github.com/prometheus/common/model/value_float.go @@ -15,6 +15,7 @@ package model import ( "encoding/json" + "errors" "fmt" "math" "strconv" @@ -39,7 +40,7 @@ func (v SampleValue) MarshalJSON() ([]byte, error) { // UnmarshalJSON implements json.Unmarshaler. func (v *SampleValue) UnmarshalJSON(b []byte) error { if len(b) < 2 || b[0] != '"' || b[len(b)-1] != '"' { - return fmt.Errorf("sample value must be a quoted string") + return errors.New("sample value must be a quoted string") } f, err := strconv.ParseFloat(string(b[1:len(b)-1]), 64) if err != nil { diff --git a/vendor/github.com/prometheus/common/model/value_histogram.go b/vendor/github.com/prometheus/common/model/value_histogram.go index 54bb038cff..895e6a3e83 100644 --- a/vendor/github.com/prometheus/common/model/value_histogram.go +++ b/vendor/github.com/prometheus/common/model/value_histogram.go @@ -15,6 +15,7 @@ package model import ( "encoding/json" + "errors" "fmt" "strconv" "strings" @@ -32,7 +33,7 @@ func (v FloatString) MarshalJSON() ([]byte, error) { func (v *FloatString) UnmarshalJSON(b []byte) error { if len(b) < 2 || b[0] != '"' || b[len(b)-1] != '"' { - return fmt.Errorf("float value must be a quoted string") + return errors.New("float value must be a quoted string") } f, err := strconv.ParseFloat(string(b[1:len(b)-1]), 64) if err != nil { @@ -141,7 +142,7 @@ type SampleHistogramPair struct { func (s SampleHistogramPair) MarshalJSON() ([]byte, error) { if s.Histogram == nil { - return nil, fmt.Errorf("histogram is nil") + return nil, errors.New("histogram is nil") } t, err := json.Marshal(s.Timestamp) if err != nil { @@ -164,7 +165,7 @@ func (s *SampleHistogramPair) UnmarshalJSON(buf []byte) error { return fmt.Errorf("wrong number of fields: %d != %d", gotLen, wantLen) } if s.Histogram == nil { - return fmt.Errorf("histogram is null") + return errors.New("histogram is null") } return nil } diff --git a/vendor/modules.txt b/vendor/modules.txt index 7010544c16..b7499448be 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -263,18 +263,19 @@ github.com/pkg/browser # github.com/pkg/errors v0.9.1 ## explicit github.com/pkg/errors -# github.com/prometheus/client_golang v1.20.5 -## explicit; go 1.20 +# github.com/prometheus/client_golang v1.22.0 +## explicit; go 1.22 github.com/prometheus/client_golang/internal/github.com/golang/gddo/httputil github.com/prometheus/client_golang/internal/github.com/golang/gddo/httputil/header github.com/prometheus/client_golang/prometheus github.com/prometheus/client_golang/prometheus/internal github.com/prometheus/client_golang/prometheus/promhttp +github.com/prometheus/client_golang/prometheus/promhttp/internal # github.com/prometheus/client_model v0.6.1 ## explicit; go 1.19 github.com/prometheus/client_model/go -# github.com/prometheus/common v0.55.0 -## explicit; go 1.20 +# github.com/prometheus/common v0.62.0 +## explicit; go 1.21 github.com/prometheus/common/expfmt github.com/prometheus/common/model # github.com/prometheus/procfs v0.15.1