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Update dependencies

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This commit is contained in:
eleksir
2025-10-12 15:27:41 +03:00
parent 1330c512aa
commit 5ebefcddf4
491 changed files with 27549 additions and 41202 deletions
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22
vendor/github.com/prometheus/common/expfmt/decode.go generated vendored
View File

@@ -14,7 +14,6 @@
package expfmt
import (
"bufio"
"fmt"
"io"
"math"
@@ -22,8 +21,8 @@ import (
"net/http"
dto "github.com/prometheus/client_model/go"
"google.golang.org/protobuf/encoding/protodelim"
"github.com/matttproud/golang_protobuf_extensions/pbutil"
"github.com/prometheus/common/model"
)
@@ -73,24 +72,22 @@ func ResponseFormat(h http.Header) Format {
// NewDecoder returns a new decoder based on the given input format.
// If the input format does not imply otherwise, a text format decoder is returned.
func NewDecoder(r io.Reader, format Format) Decoder {
switch format.FormatType() {
case TypeProtoDelim:
return &protoDecoder{r: bufio.NewReader(r)}
switch format {
case FmtProtoDelim:
return &protoDecoder{r: r}
}
return &textDecoder{r: r}
}
// protoDecoder implements the Decoder interface for protocol buffers.
type protoDecoder struct {
r protodelim.Reader
r io.Reader
}
// Decode implements the Decoder interface.
func (d *protoDecoder) Decode(v *dto.MetricFamily) error {
opts := protodelim.UnmarshalOptions{
MaxSize: -1,
}
if err := opts.UnmarshalFrom(d.r, v); err != nil {
_, err := pbutil.ReadDelimited(d.r, v)
if err != nil {
return err
}
if !model.IsValidMetricName(model.LabelValue(v.GetName())) {
@@ -135,10 +132,7 @@ func (d *textDecoder) Decode(v *dto.MetricFamily) error {
}
// Pick off one MetricFamily per Decode until there's nothing left.
for key, fam := range d.fams {
v.Name = fam.Name
v.Help = fam.Help
v.Type = fam.Type
v.Metric = fam.Metric
*v = *fam
delete(d.fams, key)
return nil
}

90
vendor/github.com/prometheus/common/expfmt/encode.go generated vendored
View File

@@ -18,12 +18,9 @@ import (
"io"
"net/http"
"google.golang.org/protobuf/encoding/protodelim"
"google.golang.org/protobuf/encoding/prototext"
"github.com/prometheus/common/model"
"github.com/munnerz/goautoneg"
"github.com/golang/protobuf/proto" //nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
"github.com/matttproud/golang_protobuf_extensions/pbutil"
"github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg"
dto "github.com/prometheus/client_model/go"
)
@@ -63,32 +60,23 @@ func (ec encoderCloser) Close() error {
// as the support is still experimental. To include the option to negotiate
// FmtOpenMetrics, use NegotiateOpenMetrics.
func Negotiate(h http.Header) Format {
escapingScheme := Format(fmt.Sprintf("; escaping=%s", Format(model.NameEscapingScheme.String())))
for _, ac := range goautoneg.ParseAccept(h.Get(hdrAccept)) {
if escapeParam := ac.Params[model.EscapingKey]; escapeParam != "" {
switch Format(escapeParam) {
case model.AllowUTF8, model.EscapeUnderscores, model.EscapeDots, model.EscapeValues:
escapingScheme = Format("; escaping=" + escapeParam)
default:
// If the escaping parameter is unknown, ignore it.
}
}
ver := ac.Params["version"]
if ac.Type+"/"+ac.SubType == ProtoType && ac.Params["proto"] == ProtoProtocol {
switch ac.Params["encoding"] {
case "delimited":
return FmtProtoDelim + escapingScheme
return FmtProtoDelim
case "text":
return FmtProtoText + escapingScheme
return FmtProtoText
case "compact-text":
return FmtProtoCompact + escapingScheme
return FmtProtoCompact
}
}
if ac.Type == "text" && ac.SubType == "plain" && (ver == TextVersion || ver == "") {
return FmtText + escapingScheme
return FmtText
}
}
return FmtText + escapingScheme
return FmtText
}
// NegotiateIncludingOpenMetrics works like Negotiate but includes
@@ -96,40 +84,26 @@ func Negotiate(h http.Header) Format {
// temporary and will disappear once FmtOpenMetrics is fully supported and as
// such may be negotiated by the normal Negotiate function.
func NegotiateIncludingOpenMetrics(h http.Header) Format {
escapingScheme := Format(fmt.Sprintf("; escaping=%s", Format(model.NameEscapingScheme.String())))
for _, ac := range goautoneg.ParseAccept(h.Get(hdrAccept)) {
if escapeParam := ac.Params[model.EscapingKey]; escapeParam != "" {
switch Format(escapeParam) {
case model.AllowUTF8, model.EscapeUnderscores, model.EscapeDots, model.EscapeValues:
escapingScheme = Format("; escaping=" + escapeParam)
default:
// If the escaping parameter is unknown, ignore it.
}
}
ver := ac.Params["version"]
if ac.Type+"/"+ac.SubType == ProtoType && ac.Params["proto"] == ProtoProtocol {
switch ac.Params["encoding"] {
case "delimited":
return FmtProtoDelim + escapingScheme
return FmtProtoDelim
case "text":
return FmtProtoText + escapingScheme
return FmtProtoText
case "compact-text":
return FmtProtoCompact + escapingScheme
return FmtProtoCompact
}
}
if ac.Type == "text" && ac.SubType == "plain" && (ver == TextVersion || ver == "") {
return FmtText + escapingScheme
return FmtText
}
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
default:
return FmtOpenMetrics_0_0_1 + escapingScheme
}
if ac.Type+"/"+ac.SubType == OpenMetricsType && (ver == OpenMetricsVersion || ver == "") {
return FmtOpenMetrics
}
}
return FmtText + escapingScheme
return FmtText
}
// NewEncoder returns a new encoder based on content type negotiation. All
@@ -138,54 +112,44 @@ func NegotiateIncludingOpenMetrics(h http.Header) Format {
// for FmtOpenMetrics, but a future (breaking) release will add the Close method
// to the Encoder interface directly. The current version of the Encoder
// interface is kept for backwards compatibility.
// In cases where the Format does not allow for UTF-8 names, the global
// NameEscapingScheme will be applied.
//
// NewEncoder can be called with additional options to customize the OpenMetrics text output.
// For example:
// NewEncoder(w, FmtOpenMetrics_1_0_0, WithCreatedLines())
//
// Extra options are ignored for all other formats.
func NewEncoder(w io.Writer, format Format, options ...EncoderOption) Encoder {
escapingScheme := format.ToEscapingScheme()
switch format.FormatType() {
case TypeProtoDelim:
func NewEncoder(w io.Writer, format Format) Encoder {
switch format {
case FmtProtoDelim:
return encoderCloser{
encode: func(v *dto.MetricFamily) error {
_, err := protodelim.MarshalTo(w, v)
_, err := pbutil.WriteDelimited(w, v)
return err
},
close: func() error { return nil },
}
case TypeProtoCompact:
case FmtProtoCompact:
return encoderCloser{
encode: func(v *dto.MetricFamily) error {
_, err := fmt.Fprintln(w, model.EscapeMetricFamily(v, escapingScheme).String())
_, err := fmt.Fprintln(w, v.String())
return err
},
close: func() error { return nil },
}
case TypeProtoText:
case FmtProtoText:
return encoderCloser{
encode: func(v *dto.MetricFamily) error {
_, err := fmt.Fprintln(w, prototext.Format(model.EscapeMetricFamily(v, escapingScheme)))
_, err := fmt.Fprintln(w, proto.MarshalTextString(v))
return err
},
close: func() error { return nil },
}
case TypeTextPlain:
case FmtText:
return encoderCloser{
encode: func(v *dto.MetricFamily) error {
_, err := MetricFamilyToText(w, model.EscapeMetricFamily(v, escapingScheme))
_, err := MetricFamilyToText(w, v)
return err
},
close: func() error { return nil },
}
case TypeOpenMetrics:
case FmtOpenMetrics:
return encoderCloser{
encode: func(v *dto.MetricFamily) error {
_, err := MetricFamilyToOpenMetrics(w, model.EscapeMetricFamily(v, escapingScheme), options...)
_, err := MetricFamilyToOpenMetrics(w, v)
return err
},
close: func() error {

192
vendor/github.com/prometheus/common/expfmt/expfmt.go generated vendored
View File

@@ -14,194 +14,28 @@
// Package expfmt contains tools for reading and writing Prometheus metrics.
package expfmt
import (
"errors"
"strings"
"github.com/prometheus/common/model"
)
// Format specifies the HTTP content type of the different wire protocols.
type Format string
// Constants to assemble the Content-Type values for the different wire
// protocols. The Content-Type strings here are all for the legacy exposition
// formats, where valid characters for metric names and label names are limited.
// Support for arbitrary UTF-8 characters in those names is already partially
// implemented in this module (see model.ValidationScheme), but to actually use
// it on the wire, new content-type strings will have to be agreed upon and
// added here.
// Constants to assemble the Content-Type values for the different wire protocols.
const (
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"
TextVersion = "0.0.4"
ProtoType = `application/vnd.google.protobuf`
ProtoProtocol = `io.prometheus.client.MetricFamily`
ProtoFmt = ProtoType + "; proto=" + ProtoProtocol + ";"
OpenMetricsType = `application/openmetrics-text`
OpenMetricsVersion = "0.0.1"
// 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 = `<unknown>`
// 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.
// The Content-Type values for the different wire protocols.
FmtUnknown Format = `<unknown>`
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`
// 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`
FmtOpenMetrics Format = OpenMetricsType + `; version=` + OpenMetricsVersion + `; charset=utf-8`
)
const (
hdrContentType = "Content-Type"
hdrAccept = "Accept"
)
// FormatType is a Go enum representing the overall category for the given
// Format. As the number of Format permutations increases, doing basic string
// comparisons are not feasible, so this enum captures the most useful
// high-level attribute of the Format string.
type FormatType int
const (
TypeUnknown FormatType = iota
TypeProtoCompact
TypeProtoDelim
TypeProtoText
TypeTextPlain
TypeOpenMetrics
)
// NewFormat generates a new Format from the type provided. Mostly used for
// tests, most Formats should be generated as part of content negotiation in
// encode.go. If a type has more than one version, the latest version will be
// returned.
func NewFormat(t FormatType) Format {
switch t {
case TypeProtoCompact:
return FmtProtoCompact
case TypeProtoDelim:
return FmtProtoDelim
case TypeProtoText:
return FmtProtoText
case TypeTextPlain:
return FmtText
case TypeOpenMetrics:
return FmtOpenMetrics_1_0_0
default:
return FmtUnknown
}
}
// NewOpenMetricsFormat generates a new OpenMetrics format matching the
// specified version number.
func NewOpenMetricsFormat(version string) (Format, error) {
if version == OpenMetricsVersion_0_0_1 {
return FmtOpenMetrics_0_0_1, nil
}
if version == OpenMetricsVersion_1_0_0 {
return FmtOpenMetrics_1_0_0, nil
}
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.
func (f Format) FormatType() FormatType {
toks := strings.Split(string(f), ";")
params := make(map[string]string)
for i, t := range toks {
if i == 0 {
continue
}
args := strings.Split(t, "=")
if len(args) != 2 {
continue
}
params[strings.TrimSpace(args[0])] = strings.TrimSpace(args[1])
}
switch strings.TrimSpace(toks[0]) {
case ProtoType:
if params["proto"] != ProtoProtocol {
return TypeUnknown
}
switch params["encoding"] {
case "delimited":
return TypeProtoDelim
case "text":
return TypeProtoText
case "compact-text":
return TypeProtoCompact
default:
return TypeUnknown
}
case OpenMetricsType:
if params["charset"] != "utf-8" {
return TypeUnknown
}
return TypeOpenMetrics
case "text/plain":
v, ok := params["version"]
if !ok {
return TypeTextPlain
}
if v == TextVersion {
return TypeTextPlain
}
return TypeUnknown
default:
return TypeUnknown
}
}
// ToEscapingScheme returns an EscapingScheme depending on the Format. Iff the
// Format contains a escaping=allow-utf-8 term, it will select NoEscaping. If a valid
// "escaping" term exists, that will be used. Otherwise, the global default will
// be returned.
func (format Format) ToEscapingScheme() model.EscapingScheme {
for _, p := range strings.Split(string(format), ";") {
toks := strings.Split(p, "=")
if len(toks) != 2 {
continue
}
key, value := strings.TrimSpace(toks[0]), strings.TrimSpace(toks[1])
if key == model.EscapingKey {
scheme, err := model.ToEscapingScheme(value)
if err != nil {
return model.NameEscapingScheme
}
return scheme
}
}
return model.NameEscapingScheme
}

283
vendor/github.com/prometheus/common/expfmt/openmetrics_create.go generated vendored
View File

@@ -22,47 +22,11 @@ import (
"strconv"
"strings"
"google.golang.org/protobuf/types/known/timestamppb"
"github.com/prometheus/common/model"
dto "github.com/prometheus/client_model/go"
)
type encoderOption struct {
withCreatedLines bool
withUnit bool
}
type EncoderOption func(*encoderOption)
// WithCreatedLines is an EncoderOption that configures the OpenMetrics encoder
// to include _created lines (See
// 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.
//
// At the time of writing, created timestamp ingestion is still experimental in
// Prometheus and need to be enabled with the feature-flag
// `--feature-flag=created-timestamp-zero-ingestion`, and breaking changes are
// still possible. Therefore, it is recommended to use this feature with caution.
func WithCreatedLines() EncoderOption {
return func(t *encoderOption) {
t.withCreatedLines = true
}
}
// WithUnit is an EncoderOption enabling a set unit to be written to the output
// and to be added to the metric name, if it's not there already, as a suffix.
// Without opting in this way, the unit will not be added to the metric name and,
// on top of that, the unit will not be passed onto the output, even if it
// were declared in the *dto.MetricFamily struct, i.e. even if in.Unit !=nil.
func WithUnit() EncoderOption {
return func(t *encoderOption) {
t.withUnit = true
}
}
// MetricFamilyToOpenMetrics converts a MetricFamily proto message into the
// OpenMetrics text format and writes the resulting lines to 'out'. It returns
// the number of bytes written and any error encountered. The output will have
@@ -71,18 +35,6 @@ func WithUnit() EncoderOption {
// sanity checks. If the input contains duplicate metrics or invalid metric or
// label names, the conversion will result in invalid text format output.
//
// If metric names conform to the legacy validation pattern, they will be placed
// outside the brackets in the traditional way, like `foo{}`. If the metric name
// fails the legacy validation check, it will be placed quoted inside the
// brackets: `{"foo"}`. As stated above, the input is assumed to be santized and
// no error will be thrown in this case.
//
// Similar to metric names, if label names conform to the legacy validation
// pattern, they will be unquoted as normal, like `foo{bar="baz"}`. If the label
// name fails the legacy validation check, it will be quoted:
// `foo{"bar"="baz"}`. As stated above, the input is assumed to be santized and
// no error will be thrown in this case.
//
// This function fulfills the type 'expfmt.encoder'.
//
// Note that OpenMetrics requires a final `# EOF` line. Since this function acts
@@ -95,34 +47,20 @@ func WithUnit() EncoderOption {
// Prometheus to OpenMetrics or vice versa:
//
// - Counters are expected to have the `_total` suffix in their metric name. In
// the output, the suffix will be truncated from the `# TYPE`, `# HELP` and `# UNIT`
// lines. A counter with a missing `_total` suffix is not an error. However,
// the output, the suffix will be truncated from the `# TYPE` and `# HELP`
// line. A counter with a missing `_total` suffix is not an error. However,
// its type will be set to `unknown` in that case to avoid invalid OpenMetrics
// output.
//
// - 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/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
// as a suffix (see the description of the WithUnit function above),
// or not to opt in, in case they don't want for any of that to happen.
//
// - No support for the following (optional) features: info type,
// stateset type, gaugehistogram type.
// - No support for the following (optional) features: `# UNIT` line, `_created`
// line, info type, stateset type, gaugehistogram type.
//
// - The size of exemplar labels is not checked (i.e. it's possible to create
// exemplars that are larger than allowed by the OpenMetrics specification).
//
// - The value of Counters is not checked. (OpenMetrics doesn't allow counters
// with a `NaN` value.)
func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily, options ...EncoderOption) (written int, err error) {
toOM := encoderOption{}
for _, option := range options {
option(&toOM)
}
func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily) (written int, err error) {
name := in.GetName()
if name == "" {
return 0, fmt.Errorf("MetricFamily has no name: %s", in)
@@ -145,15 +83,12 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily, options ...E
}
var (
n int
metricType = in.GetType()
compliantName = name
n int
metricType = in.GetType()
shortName = name
)
if metricType == dto.MetricType_COUNTER && strings.HasSuffix(compliantName, "_total") {
compliantName = name[:len(name)-6]
}
if toOM.withUnit && in.Unit != nil && !strings.HasSuffix(compliantName, "_"+*in.Unit) {
compliantName = compliantName + "_" + *in.Unit
if metricType == dto.MetricType_COUNTER && strings.HasSuffix(shortName, "_total") {
shortName = name[:len(name)-6]
}
// Comments, first HELP, then TYPE.
@@ -163,7 +98,7 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily, options ...E
if err != nil {
return
}
n, err = writeName(w, compliantName)
n, err = w.WriteString(shortName)
written += n
if err != nil {
return
@@ -189,7 +124,7 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily, options ...E
if err != nil {
return
}
n, err = writeName(w, compliantName)
n, err = w.WriteString(shortName)
written += n
if err != nil {
return
@@ -216,89 +151,55 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily, options ...E
if err != nil {
return
}
if toOM.withUnit && in.Unit != nil {
n, err = w.WriteString("# UNIT ")
written += n
if err != nil {
return
}
n, err = writeName(w, compliantName)
written += n
if err != nil {
return
}
err = w.WriteByte(' ')
written++
if err != nil {
return
}
n, err = writeEscapedString(w, *in.Unit, true)
written += n
if err != nil {
return
}
err = w.WriteByte('\n')
written++
if err != nil {
return
}
}
var createdTsBytesWritten int
// Finally the samples, one line for each.
if metricType == dto.MetricType_COUNTER && strings.HasSuffix(name, "_total") {
compliantName = compliantName + "_total"
}
for _, metric := range in.Metric {
switch metricType {
case dto.MetricType_COUNTER:
if metric.Counter == nil {
return written, fmt.Errorf(
"expected counter in metric %s %s", compliantName, metric,
"expected counter in metric %s %s", name, metric,
)
}
// Note that we have ensured above that either the name
// ends on `_total` or that the rendered type is
// `unknown`. Therefore, no `_total` must be added here.
n, err = writeOpenMetricsSample(
w, compliantName, "", metric, "", 0,
w, name, "", metric, "", 0,
metric.Counter.GetValue(), 0, false,
metric.Counter.Exemplar,
)
if toOM.withCreatedLines && metric.Counter.CreatedTimestamp != nil {
createdTsBytesWritten, err = writeOpenMetricsCreated(w, compliantName, "_total", metric, "", 0, metric.Counter.GetCreatedTimestamp())
n += createdTsBytesWritten
}
case dto.MetricType_GAUGE:
if metric.Gauge == nil {
return written, fmt.Errorf(
"expected gauge in metric %s %s", compliantName, metric,
"expected gauge in metric %s %s", name, metric,
)
}
n, err = writeOpenMetricsSample(
w, compliantName, "", metric, "", 0,
w, name, "", metric, "", 0,
metric.Gauge.GetValue(), 0, false,
nil,
)
case dto.MetricType_UNTYPED:
if metric.Untyped == nil {
return written, fmt.Errorf(
"expected untyped in metric %s %s", compliantName, metric,
"expected untyped in metric %s %s", name, metric,
)
}
n, err = writeOpenMetricsSample(
w, compliantName, "", metric, "", 0,
w, name, "", metric, "", 0,
metric.Untyped.GetValue(), 0, false,
nil,
)
case dto.MetricType_SUMMARY:
if metric.Summary == nil {
return written, fmt.Errorf(
"expected summary in metric %s %s", compliantName, metric,
"expected summary in metric %s %s", name, metric,
)
}
for _, q := range metric.Summary.Quantile {
n, err = writeOpenMetricsSample(
w, compliantName, "", metric,
w, name, "", metric,
model.QuantileLabel, q.GetQuantile(),
q.GetValue(), 0, false,
nil,
@@ -309,7 +210,7 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily, options ...E
}
}
n, err = writeOpenMetricsSample(
w, compliantName, "_sum", metric, "", 0,
w, name, "_sum", metric, "", 0,
metric.Summary.GetSampleSum(), 0, false,
nil,
)
@@ -318,24 +219,20 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily, options ...E
return
}
n, err = writeOpenMetricsSample(
w, compliantName, "_count", metric, "", 0,
w, name, "_count", metric, "", 0,
0, metric.Summary.GetSampleCount(), true,
nil,
)
if toOM.withCreatedLines && metric.Summary.CreatedTimestamp != nil {
createdTsBytesWritten, err = writeOpenMetricsCreated(w, compliantName, "", metric, "", 0, metric.Summary.GetCreatedTimestamp())
n += createdTsBytesWritten
}
case dto.MetricType_HISTOGRAM:
if metric.Histogram == nil {
return written, fmt.Errorf(
"expected histogram in metric %s %s", compliantName, metric,
"expected histogram in metric %s %s", name, metric,
)
}
infSeen := false
for _, b := range metric.Histogram.Bucket {
n, err = writeOpenMetricsSample(
w, compliantName, "_bucket", metric,
w, name, "_bucket", metric,
model.BucketLabel, b.GetUpperBound(),
0, b.GetCumulativeCount(), true,
b.Exemplar,
@@ -350,7 +247,7 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily, options ...E
}
if !infSeen {
n, err = writeOpenMetricsSample(
w, compliantName, "_bucket", metric,
w, name, "_bucket", metric,
model.BucketLabel, math.Inf(+1),
0, metric.Histogram.GetSampleCount(), true,
nil,
@@ -361,7 +258,7 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily, options ...E
}
}
n, err = writeOpenMetricsSample(
w, compliantName, "_sum", metric, "", 0,
w, name, "_sum", metric, "", 0,
metric.Histogram.GetSampleSum(), 0, false,
nil,
)
@@ -370,17 +267,13 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily, options ...E
return
}
n, err = writeOpenMetricsSample(
w, compliantName, "_count", metric, "", 0,
w, name, "_count", metric, "", 0,
0, metric.Histogram.GetSampleCount(), true,
nil,
)
if toOM.withCreatedLines && metric.Histogram.CreatedTimestamp != nil {
createdTsBytesWritten, err = writeOpenMetricsCreated(w, compliantName, "", metric, "", 0, metric.Histogram.GetCreatedTimestamp())
n += createdTsBytesWritten
}
default:
return written, fmt.Errorf(
"unexpected type in metric %s %s", compliantName, metric,
"unexpected type in metric %s %s", name, metric,
)
}
written += n
@@ -410,9 +303,21 @@ func writeOpenMetricsSample(
floatValue float64, intValue uint64, useIntValue bool,
exemplar *dto.Exemplar,
) (int, error) {
written := 0
n, err := writeOpenMetricsNameAndLabelPairs(
w, name+suffix, metric.Label, additionalLabelName, additionalLabelValue,
var written int
n, err := w.WriteString(name)
written += n
if err != nil {
return written, err
}
if suffix != "" {
n, err = w.WriteString(suffix)
written += n
if err != nil {
return written, err
}
}
n, err = writeOpenMetricsLabelPairs(
w, metric.Label, additionalLabelName, additionalLabelValue,
)
written += n
if err != nil {
@@ -445,7 +350,7 @@ func writeOpenMetricsSample(
return written, err
}
}
if exemplar != nil && len(exemplar.Label) > 0 {
if exemplar != nil {
n, err = writeExemplar(w, exemplar)
written += n
if err != nil {
@@ -460,58 +365,27 @@ func writeOpenMetricsSample(
return written, nil
}
// writeOpenMetricsNameAndLabelPairs works like writeOpenMetricsSample but
// formats the float in OpenMetrics style.
func writeOpenMetricsNameAndLabelPairs(
// writeOpenMetricsLabelPairs works like writeOpenMetrics but formats the float
// in OpenMetrics style.
func writeOpenMetricsLabelPairs(
w enhancedWriter,
name string,
in []*dto.LabelPair,
additionalLabelName string, additionalLabelValue float64,
) (int, error) {
var (
written int
separator byte = '{'
metricInsideBraces = false
)
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(name) {
metricInsideBraces = true
err := w.WriteByte(separator)
written++
if err != nil {
return written, err
}
separator = ','
}
n, err := writeName(w, name)
written += n
if err != nil {
return written, err
}
}
if len(in) == 0 && additionalLabelName == "" {
if metricInsideBraces {
err := w.WriteByte('}')
written++
if err != nil {
return written, err
}
}
return written, nil
return 0, nil
}
var (
written int
separator byte = '{'
)
for _, lp := range in {
err := w.WriteByte(separator)
written++
if err != nil {
return written, err
}
n, err := writeName(w, lp.GetName())
n, err := w.WriteString(lp.GetName())
written += n
if err != nil {
return written, err
@@ -568,49 +442,6 @@ func writeOpenMetricsNameAndLabelPairs(
return written, nil
}
// writeOpenMetricsCreated writes the created timestamp for a single time series
// following OpenMetrics text format to w, given the metric name, the metric proto
// message itself, optionally a suffix to be removed, e.g. '_total' for counters,
// an additional label name with a float64 value (use empty string as label name if
// not required) and the timestamp that represents the created timestamp.
// The function returns the number of bytes written and any error encountered.
func writeOpenMetricsCreated(w enhancedWriter,
name, suffixToTrim string, metric *dto.Metric,
additionalLabelName string, additionalLabelValue float64,
createdTimestamp *timestamppb.Timestamp,
) (int, error) {
written := 0
n, err := writeOpenMetricsNameAndLabelPairs(
w, strings.TrimSuffix(name, suffixToTrim)+"_created", metric.Label, additionalLabelName, additionalLabelValue,
)
written += n
if err != nil {
return written, err
}
err = w.WriteByte(' ')
written++
if err != nil {
return written, err
}
// TODO(beorn7): Format this directly from components of ts to
// avoid overflow/underflow and precision issues of the float
// conversion.
n, err = writeOpenMetricsFloat(w, float64(createdTimestamp.AsTime().UnixNano())/1e9)
written += n
if err != nil {
return written, err
}
err = w.WriteByte('\n')
written++
if err != nil {
return written, err
}
return written, nil
}
// writeExemplar writes the provided exemplar in OpenMetrics format to w. The
// function returns the number of bytes written and any error encountered.
func writeExemplar(w enhancedWriter, e *dto.Exemplar) (int, error) {
@@ -620,7 +451,7 @@ func writeExemplar(w enhancedWriter, e *dto.Exemplar) (int, error) {
if err != nil {
return written, err
}
n, err = writeOpenMetricsNameAndLabelPairs(w, "", e.Label, "", 0)
n, err = writeOpenMetricsLabelPairs(w, e.Label, "", 0)
written += n
if err != nil {
return written, err

118
vendor/github.com/prometheus/common/expfmt/text_create.go generated vendored
View File

@@ -62,18 +62,6 @@ var (
// contains duplicate metrics or invalid metric or label names, the conversion
// will result in invalid text format output.
//
// If metric names conform to the legacy validation pattern, they will be placed
// outside the brackets in the traditional way, like `foo{}`. If the metric name
// fails the legacy validation check, it will be placed quoted inside the
// brackets: `{"foo"}`. As stated above, the input is assumed to be santized and
// no error will be thrown in this case.
//
// Similar to metric names, if label names conform to the legacy validation
// pattern, they will be unquoted as normal, like `foo{bar="baz"}`. If the label
// name fails the legacy validation check, it will be quoted:
// `foo{"bar"="baz"}`. As stated above, the input is assumed to be santized and
// no error will be thrown in this case.
//
// This method fulfills the type 'prometheus.encoder'.
func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (written int, err error) {
// Fail-fast checks.
@@ -110,7 +98,7 @@ func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (written int, err e
if err != nil {
return
}
n, err = writeName(w, name)
n, err = w.WriteString(name)
written += n
if err != nil {
return
@@ -136,7 +124,7 @@ func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (written int, err e
if err != nil {
return
}
n, err = writeName(w, name)
n, err = w.WriteString(name)
written += n
if err != nil {
return
@@ -292,9 +280,21 @@ func writeSample(
additionalLabelName string, additionalLabelValue float64,
value float64,
) (int, error) {
written := 0
n, err := writeNameAndLabelPairs(
w, name+suffix, metric.Label, additionalLabelName, additionalLabelValue,
var written int
n, err := w.WriteString(name)
written += n
if err != nil {
return written, err
}
if suffix != "" {
n, err = w.WriteString(suffix)
written += n
if err != nil {
return written, err
}
}
n, err = writeLabelPairs(
w, metric.Label, additionalLabelName, additionalLabelValue,
)
written += n
if err != nil {
@@ -330,64 +330,32 @@ func writeSample(
return written, nil
}
// writeNameAndLabelPairs converts a slice of LabelPair proto messages plus the
// explicitly given metric name and additional label pair into text formatted as
// required by the text format and writes it to 'w'. An empty slice in
// combination with an empty string 'additionalLabelName' results in nothing
// being written. Otherwise, the label pairs are written, escaped as required by
// the text format, and enclosed in '{...}'. The function returns the number of
// bytes written and any error encountered. If the metric name is not
// legacy-valid, it will be put inside the brackets as well. Legacy-invalid
// label names will also be quoted.
func writeNameAndLabelPairs(
// writeLabelPairs converts a slice of LabelPair proto messages plus the
// explicitly given additional label pair into text formatted as required by the
// text format and writes it to 'w'. An empty slice in combination with an empty
// string 'additionalLabelName' results in nothing being written. Otherwise, the
// label pairs are written, escaped as required by the text format, and enclosed
// in '{...}'. The function returns the number of bytes written and any error
// encountered.
func writeLabelPairs(
w enhancedWriter,
name string,
in []*dto.LabelPair,
additionalLabelName string, additionalLabelValue float64,
) (int, error) {
var (
written int
separator byte = '{'
metricInsideBraces = false
)
if name != "" {
// If the name does not pass the legacy validity check, we must put the
// metric name inside the braces.
if !model.IsValidLegacyMetricName(name) {
metricInsideBraces = true
err := w.WriteByte(separator)
written++
if err != nil {
return written, err
}
separator = ','
}
n, err := writeName(w, name)
written += n
if err != nil {
return written, err
}
}
if len(in) == 0 && additionalLabelName == "" {
if metricInsideBraces {
err := w.WriteByte('}')
written++
if err != nil {
return written, err
}
}
return written, nil
return 0, nil
}
var (
written int
separator byte = '{'
)
for _, lp := range in {
err := w.WriteByte(separator)
written++
if err != nil {
return written, err
}
n, err := writeName(w, lp.GetName())
n, err := w.WriteString(lp.GetName())
written += n
if err != nil {
return written, err
@@ -494,27 +462,3 @@ func writeInt(w enhancedWriter, i int64) (int, error) {
numBufPool.Put(bp)
return written, err
}
// 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(name) {
return w.WriteString(name)
}
var written int
var err error
err = w.WriteByte('"')
written++
if err != nil {
return written, err
}
var n int
n, err = writeEscapedString(w, name, true)
written += n
if err != nil {
return written, err
}
err = w.WriteByte('"')
written++
return written, err
}

170
vendor/github.com/prometheus/common/expfmt/text_parse.go generated vendored
View File

@@ -16,17 +16,15 @@ package expfmt
import (
"bufio"
"bytes"
"errors"
"fmt"
"io"
"math"
"strconv"
"strings"
"unicode/utf8"
dto "github.com/prometheus/client_model/go"
"google.golang.org/protobuf/proto"
"github.com/golang/protobuf/proto" //nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
"github.com/prometheus/common/model"
)
@@ -60,7 +58,6 @@ 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'
@@ -75,9 +72,6 @@ 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
@@ -118,7 +112,7 @@ func (p *TextParser) TextToMetricFamilies(in io.Reader) (map[string]*dto.MetricF
// stream. Turn this error into something nicer and more
// meaningful. (io.EOF is often used as a signal for the legitimate end
// of an input stream.)
if p.err != nil && errors.Is(p.err, io.EOF) {
if p.err == io.EOF {
p.parseError("unexpected end of input stream")
}
return p.metricFamiliesByName, p.err
@@ -141,21 +135,18 @@ 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.
// Any other error that happens to align with the start of
// a line is still an error.
if errors.Is(p.err, io.EOF) {
if p.err == io.EOF {
p.err = nil
}
return nil
@@ -165,9 +156,6 @@ 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
}
@@ -285,8 +273,6 @@ 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.
}
@@ -299,45 +285,6 @@ 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))
@@ -347,17 +294,23 @@ 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.currentLabelPairs = append(p.currentLabelPairs, p.currentLabelPair)
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
}
// Check for duplicate label names.
labels := make(map[string]struct{})
for _, l := range p.currentLabelPairs {
for _, l := range p.currentMetric.Label {
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
}
}
@@ -390,7 +343,6 @@ 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 {
@@ -417,19 +369,12 @@ 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
}
}
@@ -638,8 +583,6 @@ 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
@@ -665,45 +608,13 @@ 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.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)
}
}
for {
p.currentToken.WriteByte(p.currentByte)
p.currentByte, p.err = p.buf.ReadByte()
if !isValidMetricNameContinuation(p.currentByte, quoted) || (!quoted && p.currentByte == ' ') {
if p.err != nil || !isValidMetricNameContinuation(p.currentByte) {
return
}
}
@@ -715,45 +626,13 @@ 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.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)
}
}
for {
p.currentToken.WriteByte(p.currentByte)
p.currentByte, p.err = p.buf.ReadByte()
if !isValidLabelNameContinuation(p.currentByte, quoted) || (!quoted && p.currentByte == '=') {
if p.err != nil || !isValidLabelNameContinuation(p.currentByte) {
return
}
}
@@ -779,7 +658,6 @@ 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
@@ -838,19 +716,19 @@ func (p *TextParser) setOrCreateCurrentMF() {
}
func isValidLabelNameStart(b byte) bool {
return (b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' || b == '"'
return (b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_'
}
func isValidLabelNameContinuation(b byte, quoted bool) bool {
return isValidLabelNameStart(b) || (b >= '0' && b <= '9') || (quoted && utf8.ValidString(string(b)))
func isValidLabelNameContinuation(b byte) bool {
return isValidLabelNameStart(b) || (b >= '0' && b <= '9')
}
func isValidMetricNameStart(b byte) bool {
return isValidLabelNameStart(b) || b == ':'
}
func isValidMetricNameContinuation(b byte, quoted bool) bool {
return isValidLabelNameContinuation(b, quoted) || b == ':'
func isValidMetricNameContinuation(b byte) bool {
return isValidLabelNameContinuation(b) || b == ':'
}
func isBlankOrTab(b byte) bool {
@@ -895,7 +773,7 @@ func histogramMetricName(name string) string {
func parseFloat(s string) (float64, error) {
if strings.ContainsAny(s, "pP_") {
return 0, errors.New("unsupported character in float")
return 0, fmt.Errorf("unsupported character in float")
}
return strconv.ParseFloat(s, 64)
}