build: go 1.24

We were running behind and there were quite some deprecations to update.
This was mostly in the upstream copy/pasta package but seems quite
minimal.

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/handler.go

@@ -12,6 +12,7 @@ import (
 	"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/internal/request"
 	"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/internal/semconv"
 	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/propagation"
 	"go.opentelemetry.io/otel/trace"
 )
@@ -21,15 +22,16 @@ type middleware struct {
 	operation string
 	server    string
 
-	tracer            trace.Tracer
-	propagators       propagation.TextMapPropagator
-	spanStartOptions  []trace.SpanStartOption
-	readEvent         bool
-	writeEvent        bool
-	filters           []Filter
-	spanNameFormatter func(string, *http.Request) string
-	publicEndpoint    bool
-	publicEndpointFn  func(*http.Request) bool
+	tracer             trace.Tracer
+	propagators        propagation.TextMapPropagator
+	spanStartOptions   []trace.SpanStartOption
+	readEvent          bool
+	writeEvent         bool
+	filters            []Filter
+	spanNameFormatter  func(string, *http.Request) string
+	publicEndpoint     bool
+	publicEndpointFn   func(*http.Request) bool
+	metricAttributesFn func(*http.Request) []attribute.KeyValue
 
 	semconv semconv.HTTPServer
 }
@@ -79,6 +81,7 @@ func (h *middleware) configure(c *config) {
 	h.publicEndpointFn = c.PublicEndpointFn
 	h.server = c.ServerName
 	h.semconv = semconv.NewHTTPServer(c.Meter)
+	h.metricAttributesFn = c.MetricAttributesFn
 }
 
 // serveHTTP sets up tracing and calls the given next http.Handler with the span
@@ -189,14 +192,16 @@ func (h *middleware) serveHTTP(w http.ResponseWriter, r *http.Request, next http
 	// Use floating point division here for higher precision (instead of Millisecond method).
 	elapsedTime := float64(time.Since(requestStartTime)) / float64(time.Millisecond)
 
+	metricAttributes := semconv.MetricAttributes{
+		Req:                  r,
+		StatusCode:           statusCode,
+		AdditionalAttributes: append(labeler.Get(), h.metricAttributesFromRequest(r)...),
+	}
+
 	h.semconv.RecordMetrics(ctx, semconv.ServerMetricData{
-		ServerName:   h.server,
-		ResponseSize: bytesWritten,
-		MetricAttributes: semconv.MetricAttributes{
-			Req:                  r,
-			StatusCode:           statusCode,
-			AdditionalAttributes: labeler.Get(),
-		},
+		ServerName:       h.server,
+		ResponseSize:     bytesWritten,
+		MetricAttributes: metricAttributes,
 		MetricData: semconv.MetricData{
 			RequestSize: bw.BytesRead(),
 			ElapsedTime: elapsedTime,
@@ -204,6 +209,14 @@ func (h *middleware) serveHTTP(w http.ResponseWriter, r *http.Request, next http
 	})
 }
 
+func (h *middleware) metricAttributesFromRequest(r *http.Request) []attribute.KeyValue {
+	var attributeForRequest []attribute.KeyValue
+	if h.metricAttributesFn != nil {
+		attributeForRequest = h.metricAttributesFn(r)
+	}
+	return attributeForRequest
+}
+
 // WithRouteTag annotates spans and metrics with the provided route name
 // with HTTP route attribute.
 func WithRouteTag(route string, h http.Handler) http.Handler {

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/internal/request/body_wrapper.go

@@ -1,3 +1,6 @@
+// Code created by gotmpl. DO NOT MODIFY.
+// source: internal/shared/request/body_wrapper.go.tmpl
+
 // Copyright The OpenTelemetry Authors
 // SPDX-License-Identifier: Apache-2.0
 

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/internal/request/gen.go

@@ -0,0 +1,10 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package request // import "go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/internal/request"
+
+// Generate request package:
+//go:generate gotmpl --body=../../../../../../internal/shared/request/body_wrapper.go.tmpl "--data={}" --out=body_wrapper.go
+//go:generate gotmpl --body=../../../../../../internal/shared/request/body_wrapper_test.go.tmpl "--data={}" --out=body_wrapper_test.go
+//go:generate gotmpl --body=../../../../../../internal/shared/request/resp_writer_wrapper.go.tmpl "--data={}" --out=resp_writer_wrapper.go
+//go:generate gotmpl --body=../../../../../../internal/shared/request/resp_writer_wrapper_test.go.tmpl "--data={}" --out=resp_writer_wrapper_test.go

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/internal/request/resp_writer_wrapper.go

@@ -1,3 +1,6 @@
+// Code created by gotmpl. DO NOT MODIFY.
+// source: internal/shared/request/resp_writer_wrapper.go.tmpl
+
 // Copyright The OpenTelemetry Authors
 // SPDX-License-Identifier: Apache-2.0
 

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/internal/semconv/env.go

@@ -1,3 +1,6 @@
+// Code created by gotmpl. DO NOT MODIFY.
+// source: internal/shared/semconv/env.go.tmpl
+
 // Copyright The OpenTelemetry Authors
 // SPDX-License-Identifier: Apache-2.0
 
@@ -16,6 +19,10 @@ import (
 	"go.opentelemetry.io/otel/metric"
 )
 
+// OTelSemConvStabilityOptIn is an environment variable.
+// That can be set to "old" or "http/dup" to opt into the new HTTP semantic conventions.
+const OTelSemConvStabilityOptIn = "OTEL_SEMCONV_STABILITY_OPT_IN"
+
 type ResponseTelemetry struct {
 	StatusCode int
 	ReadBytes  int64
@@ -31,6 +38,11 @@ type HTTPServer struct {
 	requestBytesCounter  metric.Int64Counter
 	responseBytesCounter metric.Int64Counter
 	serverLatencyMeasure metric.Float64Histogram
+
+	// New metrics
+	requestBodySizeHistogram  metric.Int64Histogram
+	responseBodySizeHistogram metric.Int64Histogram
+	requestDurationHistogram  metric.Float64Histogram
 }
 
 // RequestTraceAttrs returns trace attributes for an HTTP request received by a
@@ -56,6 +68,15 @@ func (s HTTPServer) RequestTraceAttrs(server string, req *http.Request) []attrib
 	return OldHTTPServer{}.RequestTraceAttrs(server, req)
 }
 
+func (s HTTPServer) NetworkTransportAttr(network string) []attribute.KeyValue {
+	if s.duplicate {
+		return append([]attribute.KeyValue{OldHTTPServer{}.NetworkTransportAttr(network)}, CurrentHTTPServer{}.NetworkTransportAttr(network))
+	}
+	return []attribute.KeyValue{
+		OldHTTPServer{}.NetworkTransportAttr(network),
+	}
+}
+
 // ResponseTraceAttrs returns trace attributes for telemetry from an HTTP response.
 //
 // If any of the fields in the ResponseTelemetry are not set the attribute will be omitted.
@@ -103,38 +124,56 @@ type MetricData struct {
 	ElapsedTime float64
 }
 
-var metricAddOptionPool = &sync.Pool{
-	New: func() interface{} {
-		return &[]metric.AddOption{}
-	},
-}
-
-func (s HTTPServer) RecordMetrics(ctx context.Context, md ServerMetricData) {
-	if s.requestBytesCounter == nil || s.responseBytesCounter == nil || s.serverLatencyMeasure == nil {
-		// This will happen if an HTTPServer{} is used instead of NewHTTPServer.
-		return
+var (
+	metricAddOptionPool = &sync.Pool{
+		New: func() interface{} {
+			return &[]metric.AddOption{}
+		},
 	}
 
-	attributes := OldHTTPServer{}.MetricAttributes(md.ServerName, md.Req, md.StatusCode, md.AdditionalAttributes)
-	o := metric.WithAttributeSet(attribute.NewSet(attributes...))
-	addOpts := metricAddOptionPool.Get().(*[]metric.AddOption)
-	*addOpts = append(*addOpts, o)
-	s.requestBytesCounter.Add(ctx, md.RequestSize, *addOpts...)
-	s.responseBytesCounter.Add(ctx, md.ResponseSize, *addOpts...)
-	s.serverLatencyMeasure.Record(ctx, md.ElapsedTime, o)
-	*addOpts = (*addOpts)[:0]
-	metricAddOptionPool.Put(addOpts)
+	metricRecordOptionPool = &sync.Pool{
+		New: func() interface{} {
+			return &[]metric.RecordOption{}
+		},
+	}
+)
 
-	// TODO: Duplicate Metrics
+func (s HTTPServer) RecordMetrics(ctx context.Context, md ServerMetricData) {
+	if s.requestBytesCounter != nil && s.responseBytesCounter != nil && s.serverLatencyMeasure != nil {
+		attributes := OldHTTPServer{}.MetricAttributes(md.ServerName, md.Req, md.StatusCode, md.AdditionalAttributes)
+		o := metric.WithAttributeSet(attribute.NewSet(attributes...))
+		addOpts := metricAddOptionPool.Get().(*[]metric.AddOption)
+		*addOpts = append(*addOpts, o)
+		s.requestBytesCounter.Add(ctx, md.RequestSize, *addOpts...)
+		s.responseBytesCounter.Add(ctx, md.ResponseSize, *addOpts...)
+		s.serverLatencyMeasure.Record(ctx, md.ElapsedTime, o)
+		*addOpts = (*addOpts)[:0]
+		metricAddOptionPool.Put(addOpts)
+	}
+
+	if s.duplicate && s.requestDurationHistogram != nil && s.requestBodySizeHistogram != nil && s.responseBodySizeHistogram != nil {
+		attributes := CurrentHTTPServer{}.MetricAttributes(md.ServerName, md.Req, md.StatusCode, md.AdditionalAttributes)
+		o := metric.WithAttributeSet(attribute.NewSet(attributes...))
+		recordOpts := metricRecordOptionPool.Get().(*[]metric.RecordOption)
+		*recordOpts = append(*recordOpts, o)
+		s.requestBodySizeHistogram.Record(ctx, md.RequestSize, *recordOpts...)
+		s.responseBodySizeHistogram.Record(ctx, md.ResponseSize, *recordOpts...)
+		s.requestDurationHistogram.Record(ctx, md.ElapsedTime, o)
+		*recordOpts = (*recordOpts)[:0]
+		metricRecordOptionPool.Put(recordOpts)
+	}
 }
 
 func NewHTTPServer(meter metric.Meter) HTTPServer {
-	env := strings.ToLower(os.Getenv("OTEL_SEMCONV_STABILITY_OPT_IN"))
+	env := strings.ToLower(os.Getenv(OTelSemConvStabilityOptIn))
 	duplicate := env == "http/dup"
 	server := HTTPServer{
 		duplicate: duplicate,
 	}
 	server.requestBytesCounter, server.responseBytesCounter, server.serverLatencyMeasure = OldHTTPServer{}.createMeasures(meter)
+	if duplicate {
+		server.requestBodySizeHistogram, server.responseBodySizeHistogram, server.requestDurationHistogram = CurrentHTTPServer{}.createMeasures(meter)
+	}
 	return server
 }
 
@@ -145,14 +184,23 @@ type HTTPClient struct {
 	requestBytesCounter  metric.Int64Counter
 	responseBytesCounter metric.Int64Counter
 	latencyMeasure       metric.Float64Histogram
+
+	// new metrics
+	requestBodySize metric.Int64Histogram
+	requestDuration metric.Float64Histogram
 }
 
 func NewHTTPClient(meter metric.Meter) HTTPClient {
-	env := strings.ToLower(os.Getenv("OTEL_SEMCONV_STABILITY_OPT_IN"))
+	env := strings.ToLower(os.Getenv(OTelSemConvStabilityOptIn))
+	duplicate := env == "http/dup"
 	client := HTTPClient{
-		duplicate: env == "http/dup",
+		duplicate: duplicate,
 	}
 	client.requestBytesCounter, client.responseBytesCounter, client.latencyMeasure = OldHTTPClient{}.createMeasures(meter)
+	if duplicate {
+		client.requestBodySize, client.requestDuration = CurrentHTTPClient{}.createMeasures(meter)
+	}
+
 	return client
 }
 
@@ -204,34 +252,56 @@ func (o MetricOpts) AddOptions() metric.AddOption {
 	return o.addOptions
 }
 
-func (c HTTPClient) MetricOptions(ma MetricAttributes) MetricOpts {
+func (c HTTPClient) MetricOptions(ma MetricAttributes) map[string]MetricOpts {
+	opts := map[string]MetricOpts{}
+
 	attributes := OldHTTPClient{}.MetricAttributes(ma.Req, ma.StatusCode, ma.AdditionalAttributes)
-	// TODO: Duplicate Metrics
 	set := metric.WithAttributeSet(attribute.NewSet(attributes...))
-	return MetricOpts{
+	opts["old"] = MetricOpts{
 		measurement: set,
 		addOptions:  set,
 	}
+
+	if c.duplicate {
+		attributes := CurrentHTTPClient{}.MetricAttributes(ma.Req, ma.StatusCode, ma.AdditionalAttributes)
+		set := metric.WithAttributeSet(attribute.NewSet(attributes...))
+		opts["new"] = MetricOpts{
+			measurement: set,
+			addOptions:  set,
+		}
+	}
+
+	return opts
 }
 
-func (s HTTPClient) RecordMetrics(ctx context.Context, md MetricData, opts MetricOpts) {
+func (s HTTPClient) RecordMetrics(ctx context.Context, md MetricData, opts map[string]MetricOpts) {
 	if s.requestBytesCounter == nil || s.latencyMeasure == nil {
 		// This will happen if an HTTPClient{} is used instead of NewHTTPClient().
 		return
 	}
 
-	s.requestBytesCounter.Add(ctx, md.RequestSize, opts.AddOptions())
-	s.latencyMeasure.Record(ctx, md.ElapsedTime, opts.MeasurementOption())
+	s.requestBytesCounter.Add(ctx, md.RequestSize, opts["old"].AddOptions())
+	s.latencyMeasure.Record(ctx, md.ElapsedTime, opts["old"].MeasurementOption())
 
-	// TODO: Duplicate Metrics
+	if s.duplicate {
+		s.requestBodySize.Record(ctx, md.RequestSize, opts["new"].MeasurementOption())
+		s.requestDuration.Record(ctx, md.ElapsedTime, opts["new"].MeasurementOption())
+	}
 }
 
-func (s HTTPClient) RecordResponseSize(ctx context.Context, responseData int64, opts metric.AddOption) {
+func (s HTTPClient) RecordResponseSize(ctx context.Context, responseData int64, opts map[string]MetricOpts) {
 	if s.responseBytesCounter == nil {
 		// This will happen if an HTTPClient{} is used instead of NewHTTPClient().
 		return
 	}
 
-	s.responseBytesCounter.Add(ctx, responseData, opts)
-	// TODO: Duplicate Metrics
+	s.responseBytesCounter.Add(ctx, responseData, opts["old"].AddOptions())
+}
+
+func (s HTTPClient) TraceAttributes(host string) []attribute.KeyValue {
+	if s.duplicate {
+		return append(OldHTTPClient{}.TraceAttributes(host), CurrentHTTPClient{}.TraceAttributes(host)...)
+	}
+
+	return OldHTTPClient{}.TraceAttributes(host)
 }

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/internal/semconv/gen.go

@@ -0,0 +1,14 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package semconv // import "go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/internal/semconv"
+
+// Generate semconv package:
+//go:generate gotmpl --body=../../../../../../internal/shared/semconv/bench_test.go.tmpl "--data={ \"pkg\": \"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp\" }" --out=bench_test.go
+//go:generate gotmpl --body=../../../../../../internal/shared/semconv/env.go.tmpl "--data={ \"pkg\": \"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp\" }" --out=env.go
+//go:generate gotmpl --body=../../../../../../internal/shared/semconv/env_test.go.tmpl "--data={ \"pkg\": \"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp\" }" --out=env_test.go
+//go:generate gotmpl --body=../../../../../../internal/shared/semconv/httpconv.go.tmpl "--data={ \"pkg\": \"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp\" }" --out=httpconv.go
+//go:generate gotmpl --body=../../../../../../internal/shared/semconv/httpconv_test.go.tmpl "--data={ \"pkg\": \"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp\" }" --out=httpconv_test.go
+//go:generate gotmpl --body=../../../../../../internal/shared/semconv/util.go.tmpl "--data={ \"pkg\": \"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp\" }" --out=util.go
+//go:generate gotmpl --body=../../../../../../internal/shared/semconv/util_test.go.tmpl "--data={ \"pkg\": \"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp\" }" --out=util_test.go
+//go:generate gotmpl --body=../../../../../../internal/shared/semconv/v1.20.0.go.tmpl "--data={ \"pkg\": \"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp\" }" --out=v1.20.0.go

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/internal/semconv/httpconv.go

@@ -1,3 +1,6 @@
+// Code created by gotmpl. DO NOT MODIFY.
+// source: internal/shared/semconv/httpconv.go.tmpl
+
 // Copyright The OpenTelemetry Authors
 // SPDX-License-Identifier: Apache-2.0
 
@@ -7,10 +10,13 @@ import (
 	"fmt"
 	"net/http"
 	"reflect"
+	"slices"
 	"strconv"
 	"strings"
 
 	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/metric/noop"
 	semconvNew "go.opentelemetry.io/otel/semconv/v1.26.0"
 )
 
@@ -135,6 +141,19 @@ func (n CurrentHTTPServer) RequestTraceAttrs(server string, req *http.Request) [
 	return attrs
 }
 
+func (o CurrentHTTPServer) NetworkTransportAttr(network string) attribute.KeyValue {
+	switch network {
+	case "tcp", "tcp4", "tcp6":
+		return semconvNew.NetworkTransportTCP
+	case "udp", "udp4", "udp6":
+		return semconvNew.NetworkTransportUDP
+	case "unix", "unixgram", "unixpacket":
+		return semconvNew.NetworkTransportUnix
+	default:
+		return semconvNew.NetworkTransportPipe
+	}
+}
+
 func (n CurrentHTTPServer) method(method string) (attribute.KeyValue, attribute.KeyValue) {
 	if method == "" {
 		return semconvNew.HTTPRequestMethodGet, attribute.KeyValue{}
@@ -199,6 +218,86 @@ func (n CurrentHTTPServer) Route(route string) attribute.KeyValue {
 	return semconvNew.HTTPRoute(route)
 }
 
+func (n CurrentHTTPServer) createMeasures(meter metric.Meter) (metric.Int64Histogram, metric.Int64Histogram, metric.Float64Histogram) {
+	if meter == nil {
+		return noop.Int64Histogram{}, noop.Int64Histogram{}, noop.Float64Histogram{}
+	}
+
+	var err error
+	requestBodySizeHistogram, err := meter.Int64Histogram(
+		semconvNew.HTTPServerRequestBodySizeName,
+		metric.WithUnit(semconvNew.HTTPServerRequestBodySizeUnit),
+		metric.WithDescription(semconvNew.HTTPServerRequestBodySizeDescription),
+	)
+	handleErr(err)
+
+	responseBodySizeHistogram, err := meter.Int64Histogram(
+		semconvNew.HTTPServerResponseBodySizeName,
+		metric.WithUnit(semconvNew.HTTPServerResponseBodySizeUnit),
+		metric.WithDescription(semconvNew.HTTPServerResponseBodySizeDescription),
+	)
+	handleErr(err)
+	requestDurationHistogram, err := meter.Float64Histogram(
+		semconvNew.HTTPServerRequestDurationName,
+		metric.WithUnit(semconvNew.HTTPServerRequestDurationUnit),
+		metric.WithDescription(semconvNew.HTTPServerRequestDurationDescription),
+	)
+	handleErr(err)
+
+	return requestBodySizeHistogram, responseBodySizeHistogram, requestDurationHistogram
+}
+
+func (n CurrentHTTPServer) MetricAttributes(server string, req *http.Request, statusCode int, additionalAttributes []attribute.KeyValue) []attribute.KeyValue {
+	num := len(additionalAttributes) + 3
+	var host string
+	var p int
+	if server == "" {
+		host, p = SplitHostPort(req.Host)
+	} else {
+		// Prioritize the primary server name.
+		host, p = SplitHostPort(server)
+		if p < 0 {
+			_, p = SplitHostPort(req.Host)
+		}
+	}
+	hostPort := requiredHTTPPort(req.TLS != nil, p)
+	if hostPort > 0 {
+		num++
+	}
+	protoName, protoVersion := netProtocol(req.Proto)
+	if protoName != "" {
+		num++
+	}
+	if protoVersion != "" {
+		num++
+	}
+
+	if statusCode > 0 {
+		num++
+	}
+
+	attributes := slices.Grow(additionalAttributes, num)
+	attributes = append(attributes,
+		semconvNew.HTTPRequestMethodKey.String(standardizeHTTPMethod(req.Method)),
+		n.scheme(req.TLS != nil),
+		semconvNew.ServerAddress(host))
+
+	if hostPort > 0 {
+		attributes = append(attributes, semconvNew.ServerPort(hostPort))
+	}
+	if protoName != "" {
+		attributes = append(attributes, semconvNew.NetworkProtocolName(protoName))
+	}
+	if protoVersion != "" {
+		attributes = append(attributes, semconvNew.NetworkProtocolVersion(protoVersion))
+	}
+
+	if statusCode > 0 {
+		attributes = append(attributes, semconvNew.HTTPResponseStatusCode(statusCode))
+	}
+	return attributes
+}
+
 type CurrentHTTPClient struct{}
 
 // RequestTraceAttrs returns trace attributes for an HTTP request made by a client.
@@ -343,6 +442,98 @@ func (n CurrentHTTPClient) method(method string) (attribute.KeyValue, attribute.
 	return semconvNew.HTTPRequestMethodGet, orig
 }
 
+func (n CurrentHTTPClient) createMeasures(meter metric.Meter) (metric.Int64Histogram, metric.Float64Histogram) {
+	if meter == nil {
+		return noop.Int64Histogram{}, noop.Float64Histogram{}
+	}
+
+	var err error
+	requestBodySize, err := meter.Int64Histogram(
+		semconvNew.HTTPClientRequestBodySizeName,
+		metric.WithUnit(semconvNew.HTTPClientRequestBodySizeUnit),
+		metric.WithDescription(semconvNew.HTTPClientRequestBodySizeDescription),
+	)
+	handleErr(err)
+
+	requestDuration, err := meter.Float64Histogram(
+		semconvNew.HTTPClientRequestDurationName,
+		metric.WithUnit(semconvNew.HTTPClientRequestDurationUnit),
+		metric.WithDescription(semconvNew.HTTPClientRequestDurationDescription),
+	)
+	handleErr(err)
+
+	return requestBodySize, requestDuration
+}
+
+func (n CurrentHTTPClient) MetricAttributes(req *http.Request, statusCode int, additionalAttributes []attribute.KeyValue) []attribute.KeyValue {
+	num := len(additionalAttributes) + 2
+	var h string
+	if req.URL != nil {
+		h = req.URL.Host
+	}
+	var requestHost string
+	var requestPort int
+	for _, hostport := range []string{h, req.Header.Get("Host")} {
+		requestHost, requestPort = SplitHostPort(hostport)
+		if requestHost != "" || requestPort > 0 {
+			break
+		}
+	}
+
+	port := requiredHTTPPort(req.URL != nil && req.URL.Scheme == "https", requestPort)
+	if port > 0 {
+		num++
+	}
+
+	protoName, protoVersion := netProtocol(req.Proto)
+	if protoName != "" {
+		num++
+	}
+	if protoVersion != "" {
+		num++
+	}
+
+	if statusCode > 0 {
+		num++
+	}
+
+	attributes := slices.Grow(additionalAttributes, num)
+	attributes = append(attributes,
+		semconvNew.HTTPRequestMethodKey.String(standardizeHTTPMethod(req.Method)),
+		semconvNew.ServerAddress(requestHost),
+		n.scheme(req.TLS != nil),
+	)
+
+	if port > 0 {
+		attributes = append(attributes, semconvNew.ServerPort(port))
+	}
+	if protoName != "" {
+		attributes = append(attributes, semconvNew.NetworkProtocolName(protoName))
+	}
+	if protoVersion != "" {
+		attributes = append(attributes, semconvNew.NetworkProtocolVersion(protoVersion))
+	}
+
+	if statusCode > 0 {
+		attributes = append(attributes, semconvNew.HTTPResponseStatusCode(statusCode))
+	}
+	return attributes
+}
+
+// Attributes for httptrace.
+func (n CurrentHTTPClient) TraceAttributes(host string) []attribute.KeyValue {
+	return []attribute.KeyValue{
+		semconvNew.ServerAddress(host),
+	}
+}
+
+func (n CurrentHTTPClient) scheme(https bool) attribute.KeyValue { // nolint:revive
+	if https {
+		return semconvNew.URLScheme("https")
+	}
+	return semconvNew.URLScheme("http")
+}
+
 func isErrorStatusCode(code int) bool {
 	return code >= 400 || code < 100
 }

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/internal/semconv/util.go

@@ -1,3 +1,6 @@
+// Code created by gotmpl. DO NOT MODIFY.
+// source: internal/shared/semconv/util.go.tmpl
+
 // Copyright The OpenTelemetry Authors
 // SPDX-License-Identifier: Apache-2.0
 
@@ -75,7 +78,16 @@ func serverClientIP(xForwardedFor string) string {
 
 func netProtocol(proto string) (name string, version string) {
 	name, version, _ = strings.Cut(proto, "/")
-	name = strings.ToLower(name)
+	switch name {
+	case "HTTP":
+		name = "http"
+	case "QUIC":
+		name = "quic"
+	case "SPDY":
+		name = "spdy"
+	default:
+		name = strings.ToLower(name)
+	}
 	return name, version
 }
 
@@ -96,3 +108,13 @@ func handleErr(err error) {
 		otel.Handle(err)
 	}
 }
+
+func standardizeHTTPMethod(method string) string {
+	method = strings.ToUpper(method)
+	switch method {
+	case http.MethodConnect, http.MethodDelete, http.MethodGet, http.MethodHead, http.MethodOptions, http.MethodPatch, http.MethodPost, http.MethodPut, http.MethodTrace:
+	default:
+		method = "_OTHER"
+	}
+	return method
+}

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/internal/semconv/v1.20.0.go

@@ -1,3 +1,6 @@
+// Code created by gotmpl. DO NOT MODIFY.
+// source: internal/shared/semconv/v120.0.go.tmpl
+
 // Copyright The OpenTelemetry Authors
 // SPDX-License-Identifier: Apache-2.0
 
@@ -8,7 +11,6 @@ import (
 	"io"
 	"net/http"
 	"slices"
-	"strings"
 
 	"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/internal/semconvutil"
 	"go.opentelemetry.io/otel/attribute"
@@ -39,6 +41,10 @@ func (o OldHTTPServer) RequestTraceAttrs(server string, req *http.Request) []att
 	return semconvutil.HTTPServerRequest(server, req)
 }
 
+func (o OldHTTPServer) NetworkTransportAttr(network string) attribute.KeyValue {
+	return semconvutil.NetTransport(network)
+}
+
 // ResponseTraceAttrs returns trace attributes for telemetry from an HTTP response.
 //
 // If any of the fields in the ResponseTelemetry are not set the attribute will be omitted.
@@ -144,7 +150,7 @@ func (o OldHTTPServer) MetricAttributes(server string, req *http.Request, status
 
 	attributes := slices.Grow(additionalAttributes, n)
 	attributes = append(attributes,
-		standardizeHTTPMethodMetric(req.Method),
+		semconv.HTTPMethod(standardizeHTTPMethod(req.Method)),
 		o.scheme(req.TLS != nil),
 		semconv.NetHostName(host))
 
@@ -214,7 +220,7 @@ func (o OldHTTPClient) MetricAttributes(req *http.Request, statusCode int, addit
 
 	attributes := slices.Grow(additionalAttributes, n)
 	attributes = append(attributes,
-		standardizeHTTPMethodMetric(req.Method),
+		semconv.HTTPMethod(standardizeHTTPMethod(req.Method)),
 		semconv.NetPeerName(requestHost),
 	)
 
@@ -263,12 +269,9 @@ func (o OldHTTPClient) createMeasures(meter metric.Meter) (metric.Int64Counter,
 	return requestBytesCounter, responseBytesCounter, latencyMeasure
 }
 
-func standardizeHTTPMethodMetric(method string) attribute.KeyValue {
-	method = strings.ToUpper(method)
-	switch method {
-	case http.MethodConnect, http.MethodDelete, http.MethodGet, http.MethodHead, http.MethodOptions, http.MethodPatch, http.MethodPost, http.MethodPut, http.MethodTrace:
-	default:
-		method = "_OTHER"
+// Attributes for httptrace.
+func (c OldHTTPClient) TraceAttributes(host string) []attribute.KeyValue {
+	return []attribute.KeyValue{
+		semconv.NetHostName(host),
 	}
-	return semconv.HTTPMethod(method)
 }

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/internal/semconvutil/netconv.go

@@ -200,6 +200,15 @@ func splitHostPort(hostport string) (host string, port int) {
 
 func netProtocol(proto string) (name string, version string) {
 	name, version, _ = strings.Cut(proto, "/")
-	name = strings.ToLower(name)
+	switch name {
+	case "HTTP":
+		name = "http"
+	case "QUIC":
+		name = "quic"
+	case "SPDY":
+		name = "spdy"
+	default:
+		name = strings.ToLower(name)
+	}
 	return name, version
 }

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/transport.go

@@ -153,7 +153,7 @@ func (t *Transport) RoundTrip(r *http.Request) (*http.Response, error) {
 
 	// For handling response bytes we leverage a callback when the client reads the http response
 	readRecordFunc := func(n int64) {
-		t.semconv.RecordResponseSize(ctx, n, metricOpts.AddOptions())
+		t.semconv.RecordResponseSize(ctx, n, metricOpts)
 	}
 
 	// traces

vendor/go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp/version.go

@@ -5,7 +5,7 @@ package otelhttp // import "go.opentelemetry.io/contrib/instrumentation/net/http
 
 // Version is the current release version of the otelhttp instrumentation.
 func Version() string {
-	return "0.58.0"
+	return "0.60.0"
 	// This string is updated by the pre_release.sh script during release
 }
 

vendor/go.opentelemetry.io/otel/.gitignore

@@ -1,6 +1,7 @@
 .DS_Store
 Thumbs.db
 
+.cache/
 .tools/
 venv/
 .idea/

vendor/go.opentelemetry.io/otel/.golangci.yml

@@ -25,13 +25,13 @@ linters:
     - perfsprint
     - revive
     - staticcheck
-    - tenv
     - testifylint
     - typecheck
     - unconvert
     - unused
     - unparam
     - usestdlibvars
+    - usetesting
 
 issues:
   # Maximum issues count per one linter.
@@ -175,132 +175,60 @@ linters-settings:
     # This means that linting errors with less than 0.8 confidence will be ignored.
     # Default: 0.8
     confidence: 0.01
+    # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md
     rules:
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#blank-imports
       - name: blank-imports
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#bool-literal-in-expr
       - name: bool-literal-in-expr
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#constant-logical-expr
       - name: constant-logical-expr
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#context-as-argument
-      # TODO (#3372) re-enable linter when it is compatible. https://github.com/golangci/golangci-lint/issues/3280
       - name: context-as-argument
         disabled: true
         arguments:
-          allowTypesBefore: "*testing.T"
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#context-keys-type
+          - allowTypesBefore: "*testing.T"
       - name: context-keys-type
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#deep-exit
       - name: deep-exit
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#defer
       - name: defer
-        disabled: false
         arguments:
           - ["call-chain", "loop"]
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#dot-imports
       - name: dot-imports
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#duplicated-imports
       - name: duplicated-imports
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#early-return
       - name: early-return
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#empty-block
+        arguments:
+          - "preserveScope"
       - name: empty-block
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#empty-lines
       - name: empty-lines
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#error-naming
       - name: error-naming
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#error-return
       - name: error-return
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#error-strings
       - name: error-strings
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#errorf
       - name: errorf
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#exported
       - name: exported
-        disabled: false
         arguments:
           - "sayRepetitiveInsteadOfStutters"
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#flag-parameter
       - name: flag-parameter
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#identical-branches
       - name: identical-branches
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#if-return
       - name: if-return
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#increment-decrement
-      - name: increment-decrement
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#indent-error-flow
-      - name: indent-error-flow
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#import-shadowing
       - name: import-shadowing
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#package-comments
+      - name: increment-decrement
+      - name: indent-error-flow
+        arguments:
+          - "preserveScope"
       - name: package-comments
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#range
       - name: range
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#range-val-in-closure
       - name: range-val-in-closure
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#range-val-address
       - name: range-val-address
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#redefines-builtin-id
       - name: redefines-builtin-id
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#string-format
       - name: string-format
-        disabled: false
         arguments:
           - - panic
             - '/^[^\n]*$/'
             - must not contain line breaks
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#struct-tag
       - name: struct-tag
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#superfluous-else
       - name: superfluous-else
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#time-equal
-      - name: time-equal
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#var-naming
-      - name: var-naming
-        disabled: false
         arguments:
-          - ["ID"] # AllowList
-          - ["Otel", "Aws", "Gcp"] # DenyList
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#var-declaration
-      - name: var-declaration
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#unconditional-recursion
+          - "preserveScope"
+      - name: time-equal
       - name: unconditional-recursion
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#unexported-return
       - name: unexported-return
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#unhandled-error
       - name: unhandled-error
-        disabled: false
         arguments:
           - "fmt.Fprint"
           - "fmt.Fprintf"
@@ -308,15 +236,14 @@ linters-settings:
           - "fmt.Print"
           - "fmt.Printf"
           - "fmt.Println"
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#unnecessary-stmt
       - name: unnecessary-stmt
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#useless-break
       - name: useless-break
-        disabled: false
-      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#waitgroup-by-value
+      - name: var-declaration
+      - name: var-naming
+        arguments:
+          - ["ID"] # AllowList
+          - ["Otel", "Aws", "Gcp"] # DenyList
       - name: waitgroup-by-value
-        disabled: false
   testifylint:
     enable-all: true
     disable:

vendor/go.opentelemetry.io/otel/CHANGELOG.md

@@ -8,6 +8,61 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## [Unreleased]
 
+<!-- Released section -->
+<!-- Don't change this section unless doing release -->
+
+## [1.35.0/0.57.0/0.11.0] 2025-03-05
+
+This release is the last to support [Go 1.22].
+The next release will require at least [Go 1.23].
+
+### Added
+
+- Add `ValueFromAttribute` and `KeyValueFromAttribute` in `go.opentelemetry.io/otel/log`. (#6180)
+- Add `EventName` and `SetEventName` to `Record` in `go.opentelemetry.io/otel/log`. (#6187)
+- Add `EventName` to `RecordFactory` in `go.opentelemetry.io/otel/log/logtest`. (#6187)
+- `AssertRecordEqual` in `go.opentelemetry.io/otel/log/logtest` checks `Record.EventName`. (#6187)
+- Add `EventName` and `SetEventName` to `Record` in `go.opentelemetry.io/otel/sdk/log`. (#6193)
+- Add `EventName` to `RecordFactory` in `go.opentelemetry.io/otel/sdk/log/logtest`. (#6193)
+- Emit `Record.EventName` field in `go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc`. (#6211)
+- Emit `Record.EventName` field in `go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp`. (#6211)
+- Emit `Record.EventName` field in `go.opentelemetry.io/otel/exporters/stdout/stdoutlog` (#6210)
+- The `go.opentelemetry.io/otel/semconv/v1.28.0` package.
+  The package contains semantic conventions from the `v1.28.0` version of the OpenTelemetry Semantic Conventions.
+  See the [migration documentation](./semconv/v1.28.0/MIGRATION.md) for information on how to upgrade from `go.opentelemetry.io/otel/semconv/v1.27.0`(#6236)
+- The `go.opentelemetry.io/otel/semconv/v1.30.0` package.
+  The package contains semantic conventions from the `v1.30.0` version of the OpenTelemetry Semantic Conventions.
+  See the [migration documentation](./semconv/v1.30.0/MIGRATION.md) for information on how to upgrade from `go.opentelemetry.io/otel/semconv/v1.28.0`(#6240)
+- Document the pitfalls of using `Resource` as a comparable type.
+  `Resource.Equal` and `Resource.Equivalent` should be used instead. (#6272)
+- Support [Go 1.24]. (#6304)
+- Add `FilterProcessor` and `EnabledParameters` in `go.opentelemetry.io/otel/sdk/log`.
+  It replaces `go.opentelemetry.io/otel/sdk/log/internal/x.FilterProcessor`.
+  Compared to previous version it additionally gives the possibility to filter by resource and instrumentation scope. (#6317)
+
+### Changed
+
+- Update `github.com/prometheus/common` to `v0.62.0`, which changes the `NameValidationScheme` to `NoEscaping`.
+  This allows metrics names to keep original delimiters (e.g. `.`), rather than replacing with underscores.
+  This is controlled by the `Content-Type` header, or can be reverted by setting `NameValidationScheme` to `LegacyValidation` in `github.com/prometheus/common/model`. (#6198)
+
+### Fixes
+
+- Eliminate goroutine leak for the processor returned by `NewSimpleSpanProcessor` in `go.opentelemetry.io/otel/sdk/trace` when `Shutdown` is called and the passed `ctx` is canceled and `SpanExporter.Shutdown` has not returned. (#6368)
+- Eliminate goroutine leak for the processor returned by `NewBatchSpanProcessor` in `go.opentelemetry.io/otel/sdk/trace` when `ForceFlush` is called and the passed `ctx` is canceled and `SpanExporter.Export` has not returned. (#6369)
+
+## [1.34.0/0.56.0/0.10.0] 2025-01-17
+
+### Changed
+
+- Remove the notices from `Logger` to make the whole Logs API user-facing in `go.opentelemetry.io/otel/log`. (#6167)
+
+### Fixed
+
+- Relax minimum Go version to 1.22.0 in various modules. (#6073)
+- The `Type` name logged for the `go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc` client is corrected from `otlphttpgrpc` to `otlptracegrpc`. (#6143)
+- The `Type` name logged for the `go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlphttpgrpc` client is corrected from `otlphttphttp` to `otlptracehttp`. (#6143)
+
 ## [1.33.0/0.55.0/0.9.0/0.0.12] 2024-12-12
 
 ### Added
@@ -37,9 +92,6 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 - Fix attribute value truncation in `go.opentelemetry.io/otel/sdk/trace`. (#5997)
 - Fix attribute value truncation in `go.opentelemetry.io/otel/sdk/log`. (#6032)
 
-<!-- Released section -->
-<!-- Don't change this section unless doing release -->
-
 ## [1.32.0/0.54.0/0.8.0/0.0.11] 2024-11-08
 
 ### Added
@@ -3185,7 +3237,9 @@ It contains api and sdk for trace and meter.
 - CircleCI build CI manifest files.
 - CODEOWNERS file to track owners of this project.
 
-[Unreleased]: https://github.com/open-telemetry/opentelemetry-go/compare/v1.33.0...HEAD
+[Unreleased]: https://github.com/open-telemetry/opentelemetry-go/compare/v1.35.0...HEAD
+[1.35.0/0.57.0/0.11.0]: https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.35.0
+[1.34.0/0.56.0/0.10.0]: https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.34.0
 [1.33.0/0.55.0/0.9.0/0.0.12]: https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.33.0
 [1.32.0/0.54.0/0.8.0/0.0.11]: https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.32.0
 [1.31.0/0.53.0/0.7.0/0.0.10]: https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.31.0
@@ -3275,6 +3329,7 @@ It contains api and sdk for trace and meter.
 
 <!-- Released section ended -->
 
+[Go 1.24]: https://go.dev/doc/go1.24
 [Go 1.23]: https://go.dev/doc/go1.23
 [Go 1.22]: https://go.dev/doc/go1.22
 [Go 1.21]: https://go.dev/doc/go1.21

vendor/go.opentelemetry.io/otel/CONTRIBUTING.md

@@ -181,6 +181,18 @@ patterns in the spec.
 For a deeper discussion, see
 [this](https://github.com/open-telemetry/opentelemetry-specification/issues/165).
 
+## Tests
+
+Each functionality should be covered by tests.
+
+Performance-critical functionality should also be covered by benchmarks.
+
+- Pull requests adding a performance-critical functionality
+should have `go test -bench` output in their description.
+- Pull requests changing a performance-critical functionality
+should have [`benchstat`](https://pkg.go.dev/golang.org/x/perf/cmd/benchstat)
+output in their description.
+
 ## Documentation
 
 Each (non-internal, non-test) package must be documented using

vendor/go.opentelemetry.io/otel/Makefile

@@ -11,6 +11,10 @@ ALL_COVERAGE_MOD_DIRS := $(shell find . -type f -name 'go.mod' -exec dirname {}
 GO = go
 TIMEOUT = 60
 
+# User to run as in docker images.
+DOCKER_USER=$(shell id -u):$(shell id -g)
+DEPENDENCIES_DOCKERFILE=./dependencies.Dockerfile
+
 .DEFAULT_GOAL := precommit
 
 .PHONY: precommit ci
@@ -81,20 +85,20 @@ PIP := $(PYTOOLS)/pip
 WORKDIR := /workdir
 
 # The python image to use for the virtual environment.
-PYTHONIMAGE := python:3.11.3-slim-bullseye
+PYTHONIMAGE := $(shell awk '$$4=="python" {print $$2}' $(DEPENDENCIES_DOCKERFILE))
 
 # Run the python image with the current directory mounted.
-DOCKERPY := docker run --rm -v "$(CURDIR):$(WORKDIR)" -w $(WORKDIR) $(PYTHONIMAGE)
+DOCKERPY := docker run --rm -u $(DOCKER_USER) -v "$(CURDIR):$(WORKDIR)" -w $(WORKDIR) $(PYTHONIMAGE)
 
 # Create a virtual environment for Python tools.
 $(PYTOOLS):
 # The `--upgrade` flag is needed to ensure that the virtual environment is
 # created with the latest pip version.
-	@$(DOCKERPY) bash -c "python3 -m venv $(VENVDIR) && $(PIP) install --upgrade pip"
+	@$(DOCKERPY) bash -c "python3 -m venv $(VENVDIR) && $(PIP) install --upgrade --cache-dir=$(WORKDIR)/.cache/pip pip"
 
 # Install python packages into the virtual environment.
 $(PYTOOLS)/%: $(PYTOOLS)
-	@$(DOCKERPY) $(PIP) install -r requirements.txt
+	@$(DOCKERPY) $(PIP) install --cache-dir=$(WORKDIR)/.cache/pip -r requirements.txt
 
 CODESPELL = $(PYTOOLS)/codespell
 $(CODESPELL): PACKAGE=codespell
@@ -119,7 +123,7 @@ vanity-import-fix: $(PORTO)
 # Generate go.work file for local development.
 .PHONY: go-work
 go-work: $(CROSSLINK)
-	$(CROSSLINK) work --root=$(shell pwd)
+	$(CROSSLINK) work --root=$(shell pwd) --go=1.22.7
 
 # Build
 
@@ -265,13 +269,30 @@ check-clean-work-tree:
 	  exit 1; \
 	fi
 
+# The weaver docker image to use for semconv-generate.
+WEAVER_IMAGE := $(shell awk '$$4=="weaver" {print $$2}' $(DEPENDENCIES_DOCKERFILE))
+
 SEMCONVPKG ?= "semconv/"
 .PHONY: semconv-generate
-semconv-generate: $(SEMCONVGEN) $(SEMCONVKIT)
+semconv-generate: $(SEMCONVKIT)
 	[ "$(TAG)" ] || ( echo "TAG unset: missing opentelemetry semantic-conventions tag"; exit 1 )
-	[ "$(OTEL_SEMCONV_REPO)" ] || ( echo "OTEL_SEMCONV_REPO unset: missing path to opentelemetry semantic-conventions repo"; exit 1 )
-	$(SEMCONVGEN) -i "$(OTEL_SEMCONV_REPO)/model/." --only=attribute_group -p conventionType=trace -f attribute_group.go -z "$(SEMCONVPKG)/capitalizations.txt" -t "$(SEMCONVPKG)/template.j2" -s "$(TAG)"
-	$(SEMCONVGEN) -i "$(OTEL_SEMCONV_REPO)/model/." --only=metric  -f metric.go -t "$(SEMCONVPKG)/metric_template.j2" -s "$(TAG)"
+	# Ensure the target directory for source code is available.
+	mkdir -p $(PWD)/$(SEMCONVPKG)/${TAG}
+	# Note: We mount a home directory for downloading/storing the semconv repository.
+	# Weaver will automatically clean the cache when finished, but the directories will remain.
+	mkdir -p ~/.weaver
+	docker run --rm \
+		-u $(DOCKER_USER) \
+		--env HOME=/tmp/weaver \
+		--mount 'type=bind,source=$(PWD)/semconv,target=/home/weaver/templates/registry/go,readonly' \
+		--mount 'type=bind,source=$(PWD)/semconv/${TAG},target=/home/weaver/target' \
+		--mount 'type=bind,source=$(HOME)/.weaver,target=/tmp/weaver/.weaver' \
+		$(WEAVER_IMAGE) registry generate \
+		--registry=https://github.com/open-telemetry/semantic-conventions/archive/refs/tags/$(TAG).zip[model] \
+		--templates=/home/weaver/templates \
+		--param tag=$(TAG) \
+		go \
+		/home/weaver/target
 	$(SEMCONVKIT) -output "$(SEMCONVPKG)/$(TAG)" -tag "$(TAG)"
 
 .PHONY: gorelease

vendor/go.opentelemetry.io/otel/README.md

@@ -1,9 +1,11 @@
 # OpenTelemetry-Go
 
-[![CI](https://github.com/open-telemetry/opentelemetry-go/workflows/ci/badge.svg)](https://github.com/open-telemetry/opentelemetry-go/actions?query=workflow%3Aci+branch%3Amain)
+[![ci](https://github.com/open-telemetry/opentelemetry-go/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/open-telemetry/opentelemetry-go/actions/workflows/ci.yml)
 [![codecov.io](https://codecov.io/gh/open-telemetry/opentelemetry-go/coverage.svg?branch=main)](https://app.codecov.io/gh/open-telemetry/opentelemetry-go?branch=main)
 [![PkgGoDev](https://pkg.go.dev/badge/go.opentelemetry.io/otel)](https://pkg.go.dev/go.opentelemetry.io/otel)
 [![Go Report Card](https://goreportcard.com/badge/go.opentelemetry.io/otel)](https://goreportcard.com/report/go.opentelemetry.io/otel)
+[![OpenSSF Scorecard](https://api.scorecard.dev/projects/github.com/open-telemetry/opentelemetry-go/badge)](https://scorecard.dev/viewer/?uri=github.com/open-telemetry/opentelemetry-go)
+[![OpenSSF Best Practices](https://www.bestpractices.dev/projects/9996/badge)](https://www.bestpractices.dev/projects/9996)
 [![Slack](https://img.shields.io/badge/slack-@cncf/otel--go-brightgreen.svg?logo=slack)](https://cloud-native.slack.com/archives/C01NPAXACKT)
 
 OpenTelemetry-Go is the [Go](https://golang.org/) implementation of [OpenTelemetry](https://opentelemetry.io/).
@@ -49,18 +51,25 @@ Currently, this project supports the following environments.
 
 | OS       | Go Version | Architecture |
 |----------|------------|--------------|
+| Ubuntu   | 1.24       | amd64        |
 | Ubuntu   | 1.23       | amd64        |
 | Ubuntu   | 1.22       | amd64        |
+| Ubuntu   | 1.24       | 386          |
 | Ubuntu   | 1.23       | 386          |
 | Ubuntu   | 1.22       | 386          |
-| Linux    | 1.23       | arm64        |
-| Linux    | 1.22       | arm64        |
+| Ubuntu   | 1.24       | arm64        |
+| Ubuntu   | 1.23       | arm64        |
+| Ubuntu   | 1.22       | arm64        |
+| macOS 13 | 1.24       | amd64        |
 | macOS 13 | 1.23       | amd64        |
 | macOS 13 | 1.22       | amd64        |
+| macOS    | 1.24       | arm64        |
 | macOS    | 1.23       | arm64        |
 | macOS    | 1.22       | arm64        |
+| Windows  | 1.24       | amd64        |
 | Windows  | 1.23       | amd64        |
 | Windows  | 1.22       | amd64        |
+| Windows  | 1.24       | 386          |
 | Windows  | 1.23       | 386          |
 | Windows  | 1.22       | 386          |
 

vendor/go.opentelemetry.io/otel/RELEASING.md

@@ -5,17 +5,14 @@
 New versions of the [OpenTelemetry Semantic Conventions] mean new versions of the `semconv` package need to be generated.
 The `semconv-generate` make target is used for this.
 
-1. Checkout a local copy of the [OpenTelemetry Semantic Conventions] to the desired release tag.
-2. Pull the latest `otel/semconvgen` image: `docker pull otel/semconvgen:latest`
-3. Run the `make semconv-generate ...` target from this repository.
+1. Set the `TAG` environment variable to the semantic convention tag you want to generate.
+2. Run the `make semconv-generate ...` target from this repository.
 
 For example,
 
 ```sh
-export TAG="v1.21.0" # Change to the release version you are generating.
-export OTEL_SEMCONV_REPO="/absolute/path/to/opentelemetry/semantic-conventions"
-docker pull otel/semconvgen:latest
-make semconv-generate # Uses the exported TAG and OTEL_SEMCONV_REPO.
+export TAG="v1.30.0" # Change to the release version you are generating.
+make semconv-generate # Uses the exported TAG.
 ```
 
 This should create a new sub-package of [`semconv`](./semconv).
@@ -130,6 +127,6 @@ Importantly, bump any package versions referenced to be the latest one you just
 
 Bump the dependencies in the following Go services:
 
-- [`accountingservice`](https://github.com/open-telemetry/opentelemetry-demo/tree/main/src/accountingservice)
-- [`checkoutservice`](https://github.com/open-telemetry/opentelemetry-demo/tree/main/src/checkoutservice)
-- [`productcatalogservice`](https://github.com/open-telemetry/opentelemetry-demo/tree/main/src/productcatalogservice)
+- [`accounting`](https://github.com/open-telemetry/opentelemetry-demo/tree/main/src/accounting)
+- [`checkoutservice`](https://github.com/open-telemetry/opentelemetry-demo/tree/main/src/checkout)
+- [`productcatalogservice`](https://github.com/open-telemetry/opentelemetry-demo/tree/main/src/product-catalog)

vendor/go.opentelemetry.io/otel/dependencies.Dockerfile

@@ -0,0 +1,3 @@
+# This is a renovate-friendly source of Docker images.
+FROM python:3.13.2-slim-bullseye@sha256:31b581c8218e1f3c58672481b3b7dba8e898852866b408c6a984c22832523935 AS python
+FROM otel/weaver:v0.13.2@sha256:ae7346b992e477f629ea327e0979e8a416a97f7956ab1f7e95ac1f44edf1a893 AS weaver

vendor/go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc/version.go

@@ -5,5 +5,5 @@ package otlpmetricgrpc // import "go.opentelemetry.io/otel/exporters/otlp/otlpme
 
 // Version is the current release version of the OpenTelemetry OTLP over gRPC metrics exporter in use.
 func Version() string {
-	return "1.33.0"
+	return "1.35.0"
 }

vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc/client.go

@@ -294,7 +294,7 @@ func (c *client) MarshalLog() interface{} {
 		Type     string
 		Endpoint string
 	}{
-		Type:     "otlphttpgrpc",
+		Type:     "otlptracegrpc",
 		Endpoint: c.endpoint,
 	}
 }

vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/version.go

@@ -5,5 +5,5 @@ package otlptrace // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace"
 
 // Version is the current release version of the OpenTelemetry OTLP trace exporter in use.
 func Version() string {
-	return "1.33.0"
+	return "1.35.0"
 }

vendor/go.opentelemetry.io/otel/renovate.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
-    "config:recommended"
+    "config:best-practices"
   ],
   "ignorePaths": [],
   "labels": ["Skip Changelog", "dependencies"],
@@ -15,10 +15,8 @@
       "enabled": true
     },
     {
-      "matchFileNames": ["internal/tools/**"],
-      "matchManagers": ["gomod"],
-      "matchDepTypes": ["indirect"],
-      "enabled": false
+      "matchPackageNames": ["go.opentelemetry.io/build-tools/**"],
+      "groupName": "build-tools"
     },
     {
       "matchPackageNames": ["google.golang.org/genproto/googleapis/**"],

vendor/go.opentelemetry.io/otel/requirements.txt

@@ -1 +1 @@
-codespell==2.3.0
+codespell==2.4.1

vendor/go.opentelemetry.io/otel/sdk/metric/internal/aggregate/exponential_histogram.go

@@ -48,7 +48,7 @@ type expoHistogramDataPoint[N int64 | float64] struct {
 	zeroCount  uint64
 }
 
-func newExpoHistogramDataPoint[N int64 | float64](attrs attribute.Set, maxSize int, maxScale int32, noMinMax, noSum bool) *expoHistogramDataPoint[N] {
+func newExpoHistogramDataPoint[N int64 | float64](attrs attribute.Set, maxSize int, maxScale int32, noMinMax, noSum bool) *expoHistogramDataPoint[N] { // nolint:revive // we need this control flag
 	f := math.MaxFloat64
 	ma := N(f) // if N is int64, max will overflow to -9223372036854775808
 	mi := N(-f)

vendor/go.opentelemetry.io/otel/sdk/metric/version.go

@@ -5,5 +5,5 @@ package metric // import "go.opentelemetry.io/otel/sdk/metric"
 
 // version is the current release version of the metric SDK in use.
 func version() string {
-	return "1.33.0"
+	return "1.35.0"
 }

vendor/go.opentelemetry.io/otel/sdk/resource/os_release_darwin.go

@@ -5,6 +5,7 @@ package resource // import "go.opentelemetry.io/otel/sdk/resource"
 
 import (
 	"encoding/xml"
+	"errors"
 	"fmt"
 	"io"
 	"os"
@@ -63,7 +64,7 @@ func parsePlistFile(file io.Reader) (map[string]string, error) {
 	}
 
 	if len(v.Dict.Key) != len(v.Dict.String) {
-		return nil, fmt.Errorf("the number of <key> and <string> elements doesn't match")
+		return nil, errors.New("the number of <key> and <string> elements doesn't match")
 	}
 
 	properties := make(map[string]string, len(v.Dict.Key))

vendor/go.opentelemetry.io/otel/sdk/resource/resource.go

@@ -21,11 +21,22 @@ import (
 // Resources should be passed and stored as pointers
 // (`*resource.Resource`).  The `nil` value is equivalent to an empty
 // Resource.
+//
+// Note that the Go == operator compares not just the resource attributes but
+// also all other internals of the Resource type. Therefore, Resource values
+// should not be used as map or database keys. In general, the [Resource.Equal]
+// method should be used instead of direct comparison with ==, since that
+// method ensures the correct comparison of resource attributes, and the
+// [attribute.Distinct] returned from [Resource.Equivalent] should be used for
+// map and database keys instead.
 type Resource struct {
 	attrs     attribute.Set
 	schemaURL string
 }
 
+// Compile-time check that the Resource remains comparable.
+var _ map[Resource]struct{} = nil
+
 var (
 	defaultResource     *Resource
 	defaultResourceOnce sync.Once
@@ -137,15 +148,19 @@ func (r *Resource) Iter() attribute.Iterator {
 	return r.attrs.Iter()
 }
 
-// Equal returns true when a Resource is equivalent to this Resource.
-func (r *Resource) Equal(eq *Resource) bool {
+// Equal returns whether r and o represent the same resource. Two resources can
+// be equal even if they have different schema URLs.
+//
+// See the documentation on the [Resource] type for the pitfalls of using ==
+// with Resource values; most code should use Equal instead.
+func (r *Resource) Equal(o *Resource) bool {
 	if r == nil {
 		r = Empty()
 	}
-	if eq == nil {
-		eq = Empty()
+	if o == nil {
+		o = Empty()
 	}
-	return r.Equivalent() == eq.Equivalent()
+	return r.Equivalent() == o.Equivalent()
 }
 
 // Merge creates a new [Resource] by merging a and b.

vendor/go.opentelemetry.io/otel/sdk/trace/batch_span_processor.go

@@ -201,10 +201,9 @@ func (bsp *batchSpanProcessor) ForceFlush(ctx context.Context) error {
 			}
 		}
 
-		wait := make(chan error)
+		wait := make(chan error, 1)
 		go func() {
 			wait <- bsp.exportSpans(ctx)
-			close(wait)
 		}()
 		// Wait until the export is finished or the context is cancelled/timed out
 		select {

vendor/go.opentelemetry.io/otel/sdk/trace/sampling.go

@@ -47,12 +47,12 @@ const (
 	// Drop will not record the span and all attributes/events will be dropped.
 	Drop SamplingDecision = iota
 
-	// Record indicates the span's `IsRecording() == true`, but `Sampled` flag
-	// *must not* be set.
+	// RecordOnly indicates the span's IsRecording method returns true, but trace.FlagsSampled flag
+	// must not be set.
 	RecordOnly
 
-	// RecordAndSample has span's `IsRecording() == true` and `Sampled` flag
-	// *must* be set.
+	// RecordAndSample indicates the span's IsRecording method returns true and trace.FlagsSampled flag
+	// must be set.
 	RecordAndSample
 )
 

vendor/go.opentelemetry.io/otel/sdk/trace/simple_span_processor.go

@@ -58,7 +58,7 @@ func (ssp *simpleSpanProcessor) Shutdown(ctx context.Context) error {
 	var err error
 	ssp.stopOnce.Do(func() {
 		stopFunc := func(exp SpanExporter) (<-chan error, func()) {
-			done := make(chan error)
+			done := make(chan error, 1)
 			return done, func() { done <- exp.Shutdown(ctx) }
 		}
 

vendor/go.opentelemetry.io/otel/sdk/version.go

@@ -5,5 +5,5 @@ package sdk // import "go.opentelemetry.io/otel/sdk"
 
 // Version is the current release version of the OpenTelemetry SDK in use.
 func Version() string {
-	return "1.33.0"
+	return "1.35.0"
 }

vendor/go.opentelemetry.io/otel/semconv/v1.21.0/README.md

@@ -1,3 +0,0 @@
-# Semconv v1.21.0
-
-[![PkgGoDev](https://pkg.go.dev/badge/go.opentelemetry.io/otel/semconv/v1.21.0)](https://pkg.go.dev/go.opentelemetry.io/otel/semconv/v1.21.0)

vendor/go.opentelemetry.io/otel/semconv/v1.21.0/doc.go

@@ -1,9 +0,0 @@
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
-
-// Package semconv implements OpenTelemetry semantic conventions.
-//
-// OpenTelemetry semantic conventions are agreed standardized naming
-// patterns for OpenTelemetry things. This package represents the v1.21.0
-// version of the OpenTelemetry semantic conventions.
-package semconv // import "go.opentelemetry.io/otel/semconv/v1.21.0"

vendor/go.opentelemetry.io/otel/semconv/v1.21.0/event.go

@@ -1,188 +0,0 @@
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
-
-// Code generated from semantic convention specification. DO NOT EDIT.
-
-package semconv // import "go.opentelemetry.io/otel/semconv/v1.21.0"
-
-import "go.opentelemetry.io/otel/attribute"
-
-// This semantic convention defines the attributes used to represent a feature
-// flag evaluation as an event.
-const (
-	// FeatureFlagKeyKey is the attribute Key conforming to the
-	// "feature_flag.key" semantic conventions. It represents the unique
-	// identifier of the feature flag.
-	//
-	// Type: string
-	// RequirementLevel: Required
-	// Stability: stable
-	// Examples: 'logo-color'
-	FeatureFlagKeyKey = attribute.Key("feature_flag.key")
-
-	// FeatureFlagProviderNameKey is the attribute Key conforming to the
-	// "feature_flag.provider_name" semantic conventions. It represents the
-	// name of the service provider that performs the flag evaluation.
-	//
-	// Type: string
-	// RequirementLevel: Recommended
-	// Stability: stable
-	// Examples: 'Flag Manager'
-	FeatureFlagProviderNameKey = attribute.Key("feature_flag.provider_name")
-
-	// FeatureFlagVariantKey is the attribute Key conforming to the
-	// "feature_flag.variant" semantic conventions. It represents the sHOULD be
-	// a semantic identifier for a value. If one is unavailable, a stringified
-	// version of the value can be used.
-	//
-	// Type: string
-	// RequirementLevel: Recommended
-	// Stability: stable
-	// Examples: 'red', 'true', 'on'
-	// Note: A semantic identifier, commonly referred to as a variant, provides
-	// a means
-	// for referring to a value without including the value itself. This can
-	// provide additional context for understanding the meaning behind a value.
-	// For example, the variant `red` maybe be used for the value `#c05543`.
-	//
-	// A stringified version of the value can be used in situations where a
-	// semantic identifier is unavailable. String representation of the value
-	// should be determined by the implementer.
-	FeatureFlagVariantKey = attribute.Key("feature_flag.variant")
-)
-
-// FeatureFlagKey returns an attribute KeyValue conforming to the
-// "feature_flag.key" semantic conventions. It represents the unique identifier
-// of the feature flag.
-func FeatureFlagKey(val string) attribute.KeyValue {
-	return FeatureFlagKeyKey.String(val)
-}
-
-// FeatureFlagProviderName returns an attribute KeyValue conforming to the
-// "feature_flag.provider_name" semantic conventions. It represents the name of
-// the service provider that performs the flag evaluation.
-func FeatureFlagProviderName(val string) attribute.KeyValue {
-	return FeatureFlagProviderNameKey.String(val)
-}
-
-// FeatureFlagVariant returns an attribute KeyValue conforming to the
-// "feature_flag.variant" semantic conventions. It represents the sHOULD be a
-// semantic identifier for a value. If one is unavailable, a stringified
-// version of the value can be used.
-func FeatureFlagVariant(val string) attribute.KeyValue {
-	return FeatureFlagVariantKey.String(val)
-}
-
-// RPC received/sent message.
-const (
-	// MessageTypeKey is the attribute Key conforming to the "message.type"
-	// semantic conventions. It represents the whether this is a received or
-	// sent message.
-	//
-	// Type: Enum
-	// RequirementLevel: Optional
-	// Stability: stable
-	MessageTypeKey = attribute.Key("message.type")
-
-	// MessageIDKey is the attribute Key conforming to the "message.id"
-	// semantic conventions. It represents the mUST be calculated as two
-	// different counters starting from `1` one for sent messages and one for
-	// received message.
-	//
-	// Type: int
-	// RequirementLevel: Optional
-	// Stability: stable
-	// Note: This way we guarantee that the values will be consistent between
-	// different implementations.
-	MessageIDKey = attribute.Key("message.id")
-
-	// MessageCompressedSizeKey is the attribute Key conforming to the
-	// "message.compressed_size" semantic conventions. It represents the
-	// compressed size of the message in bytes.
-	//
-	// Type: int
-	// RequirementLevel: Optional
-	// Stability: stable
-	MessageCompressedSizeKey = attribute.Key("message.compressed_size")
-
-	// MessageUncompressedSizeKey is the attribute Key conforming to the
-	// "message.uncompressed_size" semantic conventions. It represents the
-	// uncompressed size of the message in bytes.
-	//
-	// Type: int
-	// RequirementLevel: Optional
-	// Stability: stable
-	MessageUncompressedSizeKey = attribute.Key("message.uncompressed_size")
-)
-
-var (
-	// sent
-	MessageTypeSent = MessageTypeKey.String("SENT")
-	// received
-	MessageTypeReceived = MessageTypeKey.String("RECEIVED")
-)
-
-// MessageID returns an attribute KeyValue conforming to the "message.id"
-// semantic conventions. It represents the mUST be calculated as two different
-// counters starting from `1` one for sent messages and one for received
-// message.
-func MessageID(val int) attribute.KeyValue {
-	return MessageIDKey.Int(val)
-}
-
-// MessageCompressedSize returns an attribute KeyValue conforming to the
-// "message.compressed_size" semantic conventions. It represents the compressed
-// size of the message in bytes.
-func MessageCompressedSize(val int) attribute.KeyValue {
-	return MessageCompressedSizeKey.Int(val)
-}
-
-// MessageUncompressedSize returns an attribute KeyValue conforming to the
-// "message.uncompressed_size" semantic conventions. It represents the
-// uncompressed size of the message in bytes.
-func MessageUncompressedSize(val int) attribute.KeyValue {
-	return MessageUncompressedSizeKey.Int(val)
-}
-
-// The attributes used to report a single exception associated with a span.
-const (
-	// ExceptionEscapedKey is the attribute Key conforming to the
-	// "exception.escaped" semantic conventions. It represents the sHOULD be
-	// set to true if the exception event is recorded at a point where it is
-	// known that the exception is escaping the scope of the span.
-	//
-	// Type: boolean
-	// RequirementLevel: Optional
-	// Stability: stable
-	// Note: An exception is considered to have escaped (or left) the scope of
-	// a span,
-	// if that span is ended while the exception is still logically "in
-	// flight".
-	// This may be actually "in flight" in some languages (e.g. if the
-	// exception
-	// is passed to a Context manager's `__exit__` method in Python) but will
-	// usually be caught at the point of recording the exception in most
-	// languages.
-	//
-	// It is usually not possible to determine at the point where an exception
-	// is thrown
-	// whether it will escape the scope of a span.
-	// However, it is trivial to know that an exception
-	// will escape, if one checks for an active exception just before ending
-	// the span,
-	// as done in the [example above](#recording-an-exception).
-	//
-	// It follows that an exception may still escape the scope of the span
-	// even if the `exception.escaped` attribute was not set or set to false,
-	// since the event might have been recorded at a time where it was not
-	// clear whether the exception will escape.
-	ExceptionEscapedKey = attribute.Key("exception.escaped")
-)
-
-// ExceptionEscaped returns an attribute KeyValue conforming to the
-// "exception.escaped" semantic conventions. It represents the sHOULD be set to
-// true if the exception event is recorded at a point where it is known that
-// the exception is escaping the scope of the span.
-func ExceptionEscaped(val bool) attribute.KeyValue {
-	return ExceptionEscapedKey.Bool(val)
-}

vendor/go.opentelemetry.io/otel/semconv/v1.21.0/exception.go

@@ -1,9 +0,0 @@
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
-
-package semconv // import "go.opentelemetry.io/otel/semconv/v1.21.0"
-
-const (
-	// ExceptionEventName is the name of the Span event representing an exception.
-	ExceptionEventName = "exception"
-)

vendor/go.opentelemetry.io/otel/semconv/v1.21.0/schema.go

@@ -1,9 +0,0 @@
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
-
-package semconv // import "go.opentelemetry.io/otel/semconv/v1.21.0"
-
-// SchemaURL is the schema URL that matches the version of the semantic conventions
-// that this package defines. Semconv packages starting from v1.4.0 must declare
-// non-empty schema URL in the form https://opentelemetry.io/schemas/<version>
-const SchemaURL = "https://opentelemetry.io/schemas/1.21.0"

vendor/go.opentelemetry.io/otel/trace/auto.go

@@ -0,0 +1,661 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/trace"
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"math"
+	"os"
+	"reflect"
+	"runtime"
+	"strconv"
+	"strings"
+	"sync"
+	"sync/atomic"
+	"time"
+	"unicode/utf8"
+
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	semconv "go.opentelemetry.io/otel/semconv/v1.26.0"
+	"go.opentelemetry.io/otel/trace/embedded"
+	"go.opentelemetry.io/otel/trace/internal/telemetry"
+)
+
+// newAutoTracerProvider returns an auto-instrumentable [trace.TracerProvider].
+// If an [go.opentelemetry.io/auto.Instrumentation] is configured to instrument
+// the process using the returned TracerProvider, all of the telemetry it
+// produces will be processed and handled by that Instrumentation. By default,
+// if no Instrumentation instruments the TracerProvider it will not generate
+// any trace telemetry.
+func newAutoTracerProvider() TracerProvider { return tracerProviderInstance }
+
+var tracerProviderInstance = new(autoTracerProvider)
+
+type autoTracerProvider struct{ embedded.TracerProvider }
+
+var _ TracerProvider = autoTracerProvider{}
+
+func (p autoTracerProvider) Tracer(name string, opts ...TracerOption) Tracer {
+	cfg := NewTracerConfig(opts...)
+	return autoTracer{
+		name:      name,
+		version:   cfg.InstrumentationVersion(),
+		schemaURL: cfg.SchemaURL(),
+	}
+}
+
+type autoTracer struct {
+	embedded.Tracer
+
+	name, schemaURL, version string
+}
+
+var _ Tracer = autoTracer{}
+
+func (t autoTracer) Start(ctx context.Context, name string, opts ...SpanStartOption) (context.Context, Span) {
+	var psc SpanContext
+	sampled := true
+	span := new(autoSpan)
+
+	// Ask eBPF for sampling decision and span context info.
+	t.start(ctx, span, &psc, &sampled, &span.spanContext)
+
+	span.sampled.Store(sampled)
+
+	ctx = ContextWithSpan(ctx, span)
+
+	if sampled {
+		// Only build traces if sampled.
+		cfg := NewSpanStartConfig(opts...)
+		span.traces, span.span = t.traces(name, cfg, span.spanContext, psc)
+	}
+
+	return ctx, span
+}
+
+// Expected to be implemented in eBPF.
+//
+//go:noinline
+func (t *autoTracer) start(
+	ctx context.Context,
+	spanPtr *autoSpan,
+	psc *SpanContext,
+	sampled *bool,
+	sc *SpanContext,
+) {
+	start(ctx, spanPtr, psc, sampled, sc)
+}
+
+// start is used for testing.
+var start = func(context.Context, *autoSpan, *SpanContext, *bool, *SpanContext) {}
+
+func (t autoTracer) traces(name string, cfg SpanConfig, sc, psc SpanContext) (*telemetry.Traces, *telemetry.Span) {
+	span := &telemetry.Span{
+		TraceID:      telemetry.TraceID(sc.TraceID()),
+		SpanID:       telemetry.SpanID(sc.SpanID()),
+		Flags:        uint32(sc.TraceFlags()),
+		TraceState:   sc.TraceState().String(),
+		ParentSpanID: telemetry.SpanID(psc.SpanID()),
+		Name:         name,
+		Kind:         spanKind(cfg.SpanKind()),
+	}
+
+	span.Attrs, span.DroppedAttrs = convCappedAttrs(maxSpan.Attrs, cfg.Attributes())
+
+	links := cfg.Links()
+	if limit := maxSpan.Links; limit == 0 {
+		n := int64(len(links))
+		if n > 0 {
+			span.DroppedLinks = uint32(min(n, math.MaxUint32)) // nolint: gosec  // Bounds checked.
+		}
+	} else {
+		if limit > 0 {
+			n := int64(max(len(links)-limit, 0))
+			span.DroppedLinks = uint32(min(n, math.MaxUint32)) // nolint: gosec  // Bounds checked.
+			links = links[n:]
+		}
+		span.Links = convLinks(links)
+	}
+
+	if t := cfg.Timestamp(); !t.IsZero() {
+		span.StartTime = cfg.Timestamp()
+	} else {
+		span.StartTime = time.Now()
+	}
+
+	return &telemetry.Traces{
+		ResourceSpans: []*telemetry.ResourceSpans{
+			{
+				ScopeSpans: []*telemetry.ScopeSpans{
+					{
+						Scope: &telemetry.Scope{
+							Name:    t.name,
+							Version: t.version,
+						},
+						Spans:     []*telemetry.Span{span},
+						SchemaURL: t.schemaURL,
+					},
+				},
+			},
+		},
+	}, span
+}
+
+func spanKind(kind SpanKind) telemetry.SpanKind {
+	switch kind {
+	case SpanKindInternal:
+		return telemetry.SpanKindInternal
+	case SpanKindServer:
+		return telemetry.SpanKindServer
+	case SpanKindClient:
+		return telemetry.SpanKindClient
+	case SpanKindProducer:
+		return telemetry.SpanKindProducer
+	case SpanKindConsumer:
+		return telemetry.SpanKindConsumer
+	}
+	return telemetry.SpanKind(0) // undefined.
+}
+
+type autoSpan struct {
+	embedded.Span
+
+	spanContext SpanContext
+	sampled     atomic.Bool
+
+	mu     sync.Mutex
+	traces *telemetry.Traces
+	span   *telemetry.Span
+}
+
+func (s *autoSpan) SpanContext() SpanContext {
+	if s == nil {
+		return SpanContext{}
+	}
+	// s.spanContext is immutable, do not acquire lock s.mu.
+	return s.spanContext
+}
+
+func (s *autoSpan) IsRecording() bool {
+	if s == nil {
+		return false
+	}
+
+	return s.sampled.Load()
+}
+
+func (s *autoSpan) SetStatus(c codes.Code, msg string) {
+	if s == nil || !s.sampled.Load() {
+		return
+	}
+
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	if s.span.Status == nil {
+		s.span.Status = new(telemetry.Status)
+	}
+
+	s.span.Status.Message = msg
+
+	switch c {
+	case codes.Unset:
+		s.span.Status.Code = telemetry.StatusCodeUnset
+	case codes.Error:
+		s.span.Status.Code = telemetry.StatusCodeError
+	case codes.Ok:
+		s.span.Status.Code = telemetry.StatusCodeOK
+	}
+}
+
+func (s *autoSpan) SetAttributes(attrs ...attribute.KeyValue) {
+	if s == nil || !s.sampled.Load() {
+		return
+	}
+
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	limit := maxSpan.Attrs
+	if limit == 0 {
+		// No attributes allowed.
+		n := int64(len(attrs))
+		if n > 0 {
+			s.span.DroppedAttrs += uint32(min(n, math.MaxUint32)) // nolint: gosec  // Bounds checked.
+		}
+		return
+	}
+
+	m := make(map[string]int)
+	for i, a := range s.span.Attrs {
+		m[a.Key] = i
+	}
+
+	for _, a := range attrs {
+		val := convAttrValue(a.Value)
+		if val.Empty() {
+			s.span.DroppedAttrs++
+			continue
+		}
+
+		if idx, ok := m[string(a.Key)]; ok {
+			s.span.Attrs[idx] = telemetry.Attr{
+				Key:   string(a.Key),
+				Value: val,
+			}
+		} else if limit < 0 || len(s.span.Attrs) < limit {
+			s.span.Attrs = append(s.span.Attrs, telemetry.Attr{
+				Key:   string(a.Key),
+				Value: val,
+			})
+			m[string(a.Key)] = len(s.span.Attrs) - 1
+		} else {
+			s.span.DroppedAttrs++
+		}
+	}
+}
+
+// convCappedAttrs converts up to limit attrs into a []telemetry.Attr. The
+// number of dropped attributes is also returned.
+func convCappedAttrs(limit int, attrs []attribute.KeyValue) ([]telemetry.Attr, uint32) {
+	n := len(attrs)
+	if limit == 0 {
+		var out uint32
+		if n > 0 {
+			out = uint32(min(int64(n), math.MaxUint32)) // nolint: gosec  // Bounds checked.
+		}
+		return nil, out
+	}
+
+	if limit < 0 {
+		// Unlimited.
+		return convAttrs(attrs), 0
+	}
+
+	if n < 0 {
+		n = 0
+	}
+
+	limit = min(n, limit)
+	return convAttrs(attrs[:limit]), uint32(n - limit) // nolint: gosec  // Bounds checked.
+}
+
+func convAttrs(attrs []attribute.KeyValue) []telemetry.Attr {
+	if len(attrs) == 0 {
+		// Avoid allocations if not necessary.
+		return nil
+	}
+
+	out := make([]telemetry.Attr, 0, len(attrs))
+	for _, attr := range attrs {
+		key := string(attr.Key)
+		val := convAttrValue(attr.Value)
+		if val.Empty() {
+			continue
+		}
+		out = append(out, telemetry.Attr{Key: key, Value: val})
+	}
+	return out
+}
+
+func convAttrValue(value attribute.Value) telemetry.Value {
+	switch value.Type() {
+	case attribute.BOOL:
+		return telemetry.BoolValue(value.AsBool())
+	case attribute.INT64:
+		return telemetry.Int64Value(value.AsInt64())
+	case attribute.FLOAT64:
+		return telemetry.Float64Value(value.AsFloat64())
+	case attribute.STRING:
+		v := truncate(maxSpan.AttrValueLen, value.AsString())
+		return telemetry.StringValue(v)
+	case attribute.BOOLSLICE:
+		slice := value.AsBoolSlice()
+		out := make([]telemetry.Value, 0, len(slice))
+		for _, v := range slice {
+			out = append(out, telemetry.BoolValue(v))
+		}
+		return telemetry.SliceValue(out...)
+	case attribute.INT64SLICE:
+		slice := value.AsInt64Slice()
+		out := make([]telemetry.Value, 0, len(slice))
+		for _, v := range slice {
+			out = append(out, telemetry.Int64Value(v))
+		}
+		return telemetry.SliceValue(out...)
+	case attribute.FLOAT64SLICE:
+		slice := value.AsFloat64Slice()
+		out := make([]telemetry.Value, 0, len(slice))
+		for _, v := range slice {
+			out = append(out, telemetry.Float64Value(v))
+		}
+		return telemetry.SliceValue(out...)
+	case attribute.STRINGSLICE:
+		slice := value.AsStringSlice()
+		out := make([]telemetry.Value, 0, len(slice))
+		for _, v := range slice {
+			v = truncate(maxSpan.AttrValueLen, v)
+			out = append(out, telemetry.StringValue(v))
+		}
+		return telemetry.SliceValue(out...)
+	}
+	return telemetry.Value{}
+}
+
+// truncate returns a truncated version of s such that it contains less than
+// the limit number of characters. Truncation is applied by returning the limit
+// number of valid characters contained in s.
+//
+// If limit is negative, it returns the original string.
+//
+// UTF-8 is supported. When truncating, all invalid characters are dropped
+// before applying truncation.
+//
+// If s already contains less than the limit number of bytes, it is returned
+// unchanged. No invalid characters are removed.
+func truncate(limit int, s string) string {
+	// This prioritize performance in the following order based on the most
+	// common expected use-cases.
+	//
+	//  - Short values less than the default limit (128).
+	//  - Strings with valid encodings that exceed the limit.
+	//  - No limit.
+	//  - Strings with invalid encodings that exceed the limit.
+	if limit < 0 || len(s) <= limit {
+		return s
+	}
+
+	// Optimistically, assume all valid UTF-8.
+	var b strings.Builder
+	count := 0
+	for i, c := range s {
+		if c != utf8.RuneError {
+			count++
+			if count > limit {
+				return s[:i]
+			}
+			continue
+		}
+
+		_, size := utf8.DecodeRuneInString(s[i:])
+		if size == 1 {
+			// Invalid encoding.
+			b.Grow(len(s) - 1)
+			_, _ = b.WriteString(s[:i])
+			s = s[i:]
+			break
+		}
+	}
+
+	// Fast-path, no invalid input.
+	if b.Cap() == 0 {
+		return s
+	}
+
+	// Truncate while validating UTF-8.
+	for i := 0; i < len(s) && count < limit; {
+		c := s[i]
+		if c < utf8.RuneSelf {
+			// Optimization for single byte runes (common case).
+			_ = b.WriteByte(c)
+			i++
+			count++
+			continue
+		}
+
+		_, size := utf8.DecodeRuneInString(s[i:])
+		if size == 1 {
+			// We checked for all 1-byte runes above, this is a RuneError.
+			i++
+			continue
+		}
+
+		_, _ = b.WriteString(s[i : i+size])
+		i += size
+		count++
+	}
+
+	return b.String()
+}
+
+func (s *autoSpan) End(opts ...SpanEndOption) {
+	if s == nil || !s.sampled.Swap(false) {
+		return
+	}
+
+	// s.end exists so the lock (s.mu) is not held while s.ended is called.
+	s.ended(s.end(opts))
+}
+
+func (s *autoSpan) end(opts []SpanEndOption) []byte {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	cfg := NewSpanEndConfig(opts...)
+	if t := cfg.Timestamp(); !t.IsZero() {
+		s.span.EndTime = cfg.Timestamp()
+	} else {
+		s.span.EndTime = time.Now()
+	}
+
+	b, _ := json.Marshal(s.traces) // TODO: do not ignore this error.
+	return b
+}
+
+// Expected to be implemented in eBPF.
+//
+//go:noinline
+func (*autoSpan) ended(buf []byte) { ended(buf) }
+
+// ended is used for testing.
+var ended = func([]byte) {}
+
+func (s *autoSpan) RecordError(err error, opts ...EventOption) {
+	if s == nil || err == nil || !s.sampled.Load() {
+		return
+	}
+
+	cfg := NewEventConfig(opts...)
+
+	attrs := cfg.Attributes()
+	attrs = append(attrs,
+		semconv.ExceptionType(typeStr(err)),
+		semconv.ExceptionMessage(err.Error()),
+	)
+	if cfg.StackTrace() {
+		buf := make([]byte, 2048)
+		n := runtime.Stack(buf, false)
+		attrs = append(attrs, semconv.ExceptionStacktrace(string(buf[0:n])))
+	}
+
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	s.addEvent(semconv.ExceptionEventName, cfg.Timestamp(), attrs)
+}
+
+func typeStr(i any) string {
+	t := reflect.TypeOf(i)
+	if t.PkgPath() == "" && t.Name() == "" {
+		// Likely a builtin type.
+		return t.String()
+	}
+	return fmt.Sprintf("%s.%s", t.PkgPath(), t.Name())
+}
+
+func (s *autoSpan) AddEvent(name string, opts ...EventOption) {
+	if s == nil || !s.sampled.Load() {
+		return
+	}
+
+	cfg := NewEventConfig(opts...)
+
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	s.addEvent(name, cfg.Timestamp(), cfg.Attributes())
+}
+
+// addEvent adds an event with name and attrs at tStamp to the span. The span
+// lock (s.mu) needs to be held by the caller.
+func (s *autoSpan) addEvent(name string, tStamp time.Time, attrs []attribute.KeyValue) {
+	limit := maxSpan.Events
+
+	if limit == 0 {
+		s.span.DroppedEvents++
+		return
+	}
+
+	if limit > 0 && len(s.span.Events) == limit {
+		// Drop head while avoiding allocation of more capacity.
+		copy(s.span.Events[:limit-1], s.span.Events[1:])
+		s.span.Events = s.span.Events[:limit-1]
+		s.span.DroppedEvents++
+	}
+
+	e := &telemetry.SpanEvent{Time: tStamp, Name: name}
+	e.Attrs, e.DroppedAttrs = convCappedAttrs(maxSpan.EventAttrs, attrs)
+
+	s.span.Events = append(s.span.Events, e)
+}
+
+func (s *autoSpan) AddLink(link Link) {
+	if s == nil || !s.sampled.Load() {
+		return
+	}
+
+	l := maxSpan.Links
+
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	if l == 0 {
+		s.span.DroppedLinks++
+		return
+	}
+
+	if l > 0 && len(s.span.Links) == l {
+		// Drop head while avoiding allocation of more capacity.
+		copy(s.span.Links[:l-1], s.span.Links[1:])
+		s.span.Links = s.span.Links[:l-1]
+		s.span.DroppedLinks++
+	}
+
+	s.span.Links = append(s.span.Links, convLink(link))
+}
+
+func convLinks(links []Link) []*telemetry.SpanLink {
+	out := make([]*telemetry.SpanLink, 0, len(links))
+	for _, link := range links {
+		out = append(out, convLink(link))
+	}
+	return out
+}
+
+func convLink(link Link) *telemetry.SpanLink {
+	l := &telemetry.SpanLink{
+		TraceID:    telemetry.TraceID(link.SpanContext.TraceID()),
+		SpanID:     telemetry.SpanID(link.SpanContext.SpanID()),
+		TraceState: link.SpanContext.TraceState().String(),
+		Flags:      uint32(link.SpanContext.TraceFlags()),
+	}
+	l.Attrs, l.DroppedAttrs = convCappedAttrs(maxSpan.LinkAttrs, link.Attributes)
+
+	return l
+}
+
+func (s *autoSpan) SetName(name string) {
+	if s == nil || !s.sampled.Load() {
+		return
+	}
+
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	s.span.Name = name
+}
+
+func (*autoSpan) TracerProvider() TracerProvider { return newAutoTracerProvider() }
+
+// maxSpan are the span limits resolved during startup.
+var maxSpan = newSpanLimits()
+
+type spanLimits struct {
+	// Attrs is the number of allowed attributes for a span.
+	//
+	// This is resolved from the environment variable value for the
+	// OTEL_SPAN_ATTRIBUTE_COUNT_LIMIT key if it exists. Otherwise, the
+	// environment variable value for OTEL_ATTRIBUTE_COUNT_LIMIT, or 128 if
+	// that is not set, is used.
+	Attrs int
+	// AttrValueLen is the maximum attribute value length allowed for a span.
+	//
+	// This is resolved from the environment variable value for the
+	// OTEL_SPAN_ATTRIBUTE_VALUE_LENGTH_LIMIT key if it exists. Otherwise, the
+	// environment variable value for OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT, or -1
+	// if that is not set, is used.
+	AttrValueLen int
+	// Events is the number of allowed events for a span.
+	//
+	// This is resolved from the environment variable value for the
+	// OTEL_SPAN_EVENT_COUNT_LIMIT key, or 128 is used if that is not set.
+	Events int
+	// EventAttrs is the number of allowed attributes for a span event.
+	//
+	// The is resolved from the environment variable value for the
+	// OTEL_EVENT_ATTRIBUTE_COUNT_LIMIT key, or 128 is used if that is not set.
+	EventAttrs int
+	// Links is the number of allowed Links for a span.
+	//
+	// This is resolved from the environment variable value for the
+	// OTEL_SPAN_LINK_COUNT_LIMIT, or 128 is used if that is not set.
+	Links int
+	// LinkAttrs is the number of allowed attributes for a span link.
+	//
+	// This is resolved from the environment variable value for the
+	// OTEL_LINK_ATTRIBUTE_COUNT_LIMIT, or 128 is used if that is not set.
+	LinkAttrs int
+}
+
+func newSpanLimits() spanLimits {
+	return spanLimits{
+		Attrs: firstEnv(
+			128,
+			"OTEL_SPAN_ATTRIBUTE_COUNT_LIMIT",
+			"OTEL_ATTRIBUTE_COUNT_LIMIT",
+		),
+		AttrValueLen: firstEnv(
+			-1, // Unlimited.
+			"OTEL_SPAN_ATTRIBUTE_VALUE_LENGTH_LIMIT",
+			"OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT",
+		),
+		Events:     firstEnv(128, "OTEL_SPAN_EVENT_COUNT_LIMIT"),
+		EventAttrs: firstEnv(128, "OTEL_EVENT_ATTRIBUTE_COUNT_LIMIT"),
+		Links:      firstEnv(128, "OTEL_SPAN_LINK_COUNT_LIMIT"),
+		LinkAttrs:  firstEnv(128, "OTEL_LINK_ATTRIBUTE_COUNT_LIMIT"),
+	}
+}
+
+// firstEnv returns the parsed integer value of the first matching environment
+// variable from keys. The defaultVal is returned if the value is not an
+// integer or no match is found.
+func firstEnv(defaultVal int, keys ...string) int {
+	for _, key := range keys {
+		strV := os.Getenv(key)
+		if strV == "" {
+			continue
+		}
+
+		v, err := strconv.Atoi(strV)
+		if err == nil {
+			return v
+		}
+		// Ignore invalid environment variable.
+	}
+
+	return defaultVal
+}

vendor/go.opentelemetry.io/otel/trace/internal/telemetry/attr.go

@@ -0,0 +1,58 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package telemetry // import "go.opentelemetry.io/otel/trace/internal/telemetry"
+
+// Attr is a key-value pair.
+type Attr struct {
+	Key   string `json:"key,omitempty"`
+	Value Value  `json:"value,omitempty"`
+}
+
+// String returns an Attr for a string value.
+func String(key, value string) Attr {
+	return Attr{key, StringValue(value)}
+}
+
+// Int64 returns an Attr for an int64 value.
+func Int64(key string, value int64) Attr {
+	return Attr{key, Int64Value(value)}
+}
+
+// Int returns an Attr for an int value.
+func Int(key string, value int) Attr {
+	return Int64(key, int64(value))
+}
+
+// Float64 returns an Attr for a float64 value.
+func Float64(key string, value float64) Attr {
+	return Attr{key, Float64Value(value)}
+}
+
+// Bool returns an Attr for a bool value.
+func Bool(key string, value bool) Attr {
+	return Attr{key, BoolValue(value)}
+}
+
+// Bytes returns an Attr for a []byte value.
+// The passed slice must not be changed after it is passed.
+func Bytes(key string, value []byte) Attr {
+	return Attr{key, BytesValue(value)}
+}
+
+// Slice returns an Attr for a []Value value.
+// The passed slice must not be changed after it is passed.
+func Slice(key string, value ...Value) Attr {
+	return Attr{key, SliceValue(value...)}
+}
+
+// Map returns an Attr for a map value.
+// The passed slice must not be changed after it is passed.
+func Map(key string, value ...Attr) Attr {
+	return Attr{key, MapValue(value...)}
+}
+
+// Equal returns if a is equal to b.
+func (a Attr) Equal(b Attr) bool {
+	return a.Key == b.Key && a.Value.Equal(b.Value)
+}

vendor/go.opentelemetry.io/otel/trace/internal/telemetry/doc.go

@@ -0,0 +1,8 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+/*
+Package telemetry provides a lightweight representations of OpenTelemetry
+telemetry that is compatible with the OTLP JSON protobuf encoding.
+*/
+package telemetry // import "go.opentelemetry.io/otel/trace/internal/telemetry"

vendor/go.opentelemetry.io/otel/trace/internal/telemetry/id.go

@@ -0,0 +1,103 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package telemetry // import "go.opentelemetry.io/otel/trace/internal/telemetry"
+
+import (
+	"encoding/hex"
+	"errors"
+	"fmt"
+)
+
+const (
+	traceIDSize = 16
+	spanIDSize  = 8
+)
+
+// TraceID is a custom data type that is used for all trace IDs.
+type TraceID [traceIDSize]byte
+
+// String returns the hex string representation form of a TraceID.
+func (tid TraceID) String() string {
+	return hex.EncodeToString(tid[:])
+}
+
+// IsEmpty returns false if id contains at least one non-zero byte.
+func (tid TraceID) IsEmpty() bool {
+	return tid == [traceIDSize]byte{}
+}
+
+// MarshalJSON converts the trace ID into a hex string enclosed in quotes.
+func (tid TraceID) MarshalJSON() ([]byte, error) {
+	if tid.IsEmpty() {
+		return []byte(`""`), nil
+	}
+	return marshalJSON(tid[:])
+}
+
+// UnmarshalJSON inflates the trace ID from hex string, possibly enclosed in
+// quotes.
+func (tid *TraceID) UnmarshalJSON(data []byte) error {
+	*tid = [traceIDSize]byte{}
+	return unmarshalJSON(tid[:], data)
+}
+
+// SpanID is a custom data type that is used for all span IDs.
+type SpanID [spanIDSize]byte
+
+// String returns the hex string representation form of a SpanID.
+func (sid SpanID) String() string {
+	return hex.EncodeToString(sid[:])
+}
+
+// IsEmpty returns true if the span ID contains at least one non-zero byte.
+func (sid SpanID) IsEmpty() bool {
+	return sid == [spanIDSize]byte{}
+}
+
+// MarshalJSON converts span ID into a hex string enclosed in quotes.
+func (sid SpanID) MarshalJSON() ([]byte, error) {
+	if sid.IsEmpty() {
+		return []byte(`""`), nil
+	}
+	return marshalJSON(sid[:])
+}
+
+// UnmarshalJSON decodes span ID from hex string, possibly enclosed in quotes.
+func (sid *SpanID) UnmarshalJSON(data []byte) error {
+	*sid = [spanIDSize]byte{}
+	return unmarshalJSON(sid[:], data)
+}
+
+// marshalJSON converts id into a hex string enclosed in quotes.
+func marshalJSON(id []byte) ([]byte, error) {
+	// Plus 2 quote chars at the start and end.
+	hexLen := hex.EncodedLen(len(id)) + 2
+
+	b := make([]byte, hexLen)
+	hex.Encode(b[1:hexLen-1], id)
+	b[0], b[hexLen-1] = '"', '"'
+
+	return b, nil
+}
+
+// unmarshalJSON inflates trace id from hex string, possibly enclosed in quotes.
+func unmarshalJSON(dst []byte, src []byte) error {
+	if l := len(src); l >= 2 && src[0] == '"' && src[l-1] == '"' {
+		src = src[1 : l-1]
+	}
+	nLen := len(src)
+	if nLen == 0 {
+		return nil
+	}
+
+	if len(dst) != hex.DecodedLen(nLen) {
+		return errors.New("invalid length for ID")
+	}
+
+	_, err := hex.Decode(dst, src)
+	if err != nil {
+		return fmt.Errorf("cannot unmarshal ID from string '%s': %w", string(src), err)
+	}
+	return nil
+}

vendor/go.opentelemetry.io/otel/trace/internal/telemetry/number.go

@@ -0,0 +1,67 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package telemetry // import "go.opentelemetry.io/otel/trace/internal/telemetry"
+
+import (
+	"encoding/json"
+	"strconv"
+)
+
+// protoInt64 represents the protobuf encoding of integers which can be either
+// strings or integers.
+type protoInt64 int64
+
+// Int64 returns the protoInt64 as an int64.
+func (i *protoInt64) Int64() int64 { return int64(*i) }
+
+// UnmarshalJSON decodes both strings and integers.
+func (i *protoInt64) UnmarshalJSON(data []byte) error {
+	if data[0] == '"' {
+		var str string
+		if err := json.Unmarshal(data, &str); err != nil {
+			return err
+		}
+		parsedInt, err := strconv.ParseInt(str, 10, 64)
+		if err != nil {
+			return err
+		}
+		*i = protoInt64(parsedInt)
+	} else {
+		var parsedInt int64
+		if err := json.Unmarshal(data, &parsedInt); err != nil {
+			return err
+		}
+		*i = protoInt64(parsedInt)
+	}
+	return nil
+}
+
+// protoUint64 represents the protobuf encoding of integers which can be either
+// strings or integers.
+type protoUint64 uint64
+
+// Int64 returns the protoUint64 as a uint64.
+func (i *protoUint64) Uint64() uint64 { return uint64(*i) }
+
+// UnmarshalJSON decodes both strings and integers.
+func (i *protoUint64) UnmarshalJSON(data []byte) error {
+	if data[0] == '"' {
+		var str string
+		if err := json.Unmarshal(data, &str); err != nil {
+			return err
+		}
+		parsedUint, err := strconv.ParseUint(str, 10, 64)
+		if err != nil {
+			return err
+		}
+		*i = protoUint64(parsedUint)
+	} else {
+		var parsedUint uint64
+		if err := json.Unmarshal(data, &parsedUint); err != nil {
+			return err
+		}
+		*i = protoUint64(parsedUint)
+	}
+	return nil
+}

vendor/go.opentelemetry.io/otel/trace/internal/telemetry/resource.go

@@ -0,0 +1,66 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package telemetry // import "go.opentelemetry.io/otel/trace/internal/telemetry"
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+)
+
+// Resource information.
+type Resource struct {
+	// Attrs are the set of attributes that describe the resource. Attribute
+	// keys MUST be unique (it is not allowed to have more than one attribute
+	// with the same key).
+	Attrs []Attr `json:"attributes,omitempty"`
+	// DroppedAttrs is the number of dropped attributes. If the value
+	// is 0, then no attributes were dropped.
+	DroppedAttrs uint32 `json:"droppedAttributesCount,omitempty"`
+}
+
+// UnmarshalJSON decodes the OTLP formatted JSON contained in data into r.
+func (r *Resource) UnmarshalJSON(data []byte) error {
+	decoder := json.NewDecoder(bytes.NewReader(data))
+
+	t, err := decoder.Token()
+	if err != nil {
+		return err
+	}
+	if t != json.Delim('{') {
+		return errors.New("invalid Resource type")
+	}
+
+	for decoder.More() {
+		keyIface, err := decoder.Token()
+		if err != nil {
+			if errors.Is(err, io.EOF) {
+				// Empty.
+				return nil
+			}
+			return err
+		}
+
+		key, ok := keyIface.(string)
+		if !ok {
+			return fmt.Errorf("invalid Resource field: %#v", keyIface)
+		}
+
+		switch key {
+		case "attributes":
+			err = decoder.Decode(&r.Attrs)
+		case "droppedAttributesCount", "dropped_attributes_count":
+			err = decoder.Decode(&r.DroppedAttrs)
+		default:
+			// Skip unknown.
+		}
+
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}

vendor/go.opentelemetry.io/otel/trace/internal/telemetry/scope.go

@@ -0,0 +1,67 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package telemetry // import "go.opentelemetry.io/otel/trace/internal/telemetry"
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+)
+
+// Scope is the identifying values of the instrumentation scope.
+type Scope struct {
+	Name         string `json:"name,omitempty"`
+	Version      string `json:"version,omitempty"`
+	Attrs        []Attr `json:"attributes,omitempty"`
+	DroppedAttrs uint32 `json:"droppedAttributesCount,omitempty"`
+}
+
+// UnmarshalJSON decodes the OTLP formatted JSON contained in data into r.
+func (s *Scope) UnmarshalJSON(data []byte) error {
+	decoder := json.NewDecoder(bytes.NewReader(data))
+
+	t, err := decoder.Token()
+	if err != nil {
+		return err
+	}
+	if t != json.Delim('{') {
+		return errors.New("invalid Scope type")
+	}
+
+	for decoder.More() {
+		keyIface, err := decoder.Token()
+		if err != nil {
+			if errors.Is(err, io.EOF) {
+				// Empty.
+				return nil
+			}
+			return err
+		}
+
+		key, ok := keyIface.(string)
+		if !ok {
+			return fmt.Errorf("invalid Scope field: %#v", keyIface)
+		}
+
+		switch key {
+		case "name":
+			err = decoder.Decode(&s.Name)
+		case "version":
+			err = decoder.Decode(&s.Version)
+		case "attributes":
+			err = decoder.Decode(&s.Attrs)
+		case "droppedAttributesCount", "dropped_attributes_count":
+			err = decoder.Decode(&s.DroppedAttrs)
+		default:
+			// Skip unknown.
+		}
+
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}

vendor/go.opentelemetry.io/otel/trace/internal/telemetry/span.go

@@ -0,0 +1,460 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package telemetry // import "go.opentelemetry.io/otel/trace/internal/telemetry"
+
+import (
+	"bytes"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"math"
+	"time"
+)
+
+// A Span represents a single operation performed by a single component of the
+// system.
+type Span struct {
+	// A unique identifier for a trace. All spans from the same trace share
+	// the same `trace_id`. The ID is a 16-byte array. An ID with all zeroes OR
+	// of length other than 16 bytes is considered invalid (empty string in OTLP/JSON
+	// is zero-length and thus is also invalid).
+	//
+	// This field is required.
+	TraceID TraceID `json:"traceId,omitempty"`
+	// A unique identifier for a span within a trace, assigned when the span
+	// is created. The ID is an 8-byte array. An ID with all zeroes OR of length
+	// other than 8 bytes is considered invalid (empty string in OTLP/JSON
+	// is zero-length and thus is also invalid).
+	//
+	// This field is required.
+	SpanID SpanID `json:"spanId,omitempty"`
+	// trace_state conveys information about request position in multiple distributed tracing graphs.
+	// It is a trace_state in w3c-trace-context format: https://www.w3.org/TR/trace-context/#tracestate-header
+	// See also https://github.com/w3c/distributed-tracing for more details about this field.
+	TraceState string `json:"traceState,omitempty"`
+	// The `span_id` of this span's parent span. If this is a root span, then this
+	// field must be empty. The ID is an 8-byte array.
+	ParentSpanID SpanID `json:"parentSpanId,omitempty"`
+	// Flags, a bit field.
+	//
+	// Bits 0-7 (8 least significant bits) are the trace flags as defined in W3C Trace
+	// Context specification. To read the 8-bit W3C trace flag, use
+	// `flags & SPAN_FLAGS_TRACE_FLAGS_MASK`.
+	//
+	// See https://www.w3.org/TR/trace-context-2/#trace-flags for the flag definitions.
+	//
+	// Bits 8 and 9 represent the 3 states of whether a span's parent
+	// is remote. The states are (unknown, is not remote, is remote).
+	// To read whether the value is known, use `(flags & SPAN_FLAGS_CONTEXT_HAS_IS_REMOTE_MASK) != 0`.
+	// To read whether the span is remote, use `(flags & SPAN_FLAGS_CONTEXT_IS_REMOTE_MASK) != 0`.
+	//
+	// When creating span messages, if the message is logically forwarded from another source
+	// with an equivalent flags fields (i.e., usually another OTLP span message), the field SHOULD
+	// be copied as-is. If creating from a source that does not have an equivalent flags field
+	// (such as a runtime representation of an OpenTelemetry span), the high 22 bits MUST
+	// be set to zero.
+	// Readers MUST NOT assume that bits 10-31 (22 most significant bits) will be zero.
+	//
+	// [Optional].
+	Flags uint32 `json:"flags,omitempty"`
+	// A description of the span's operation.
+	//
+	// For example, the name can be a qualified method name or a file name
+	// and a line number where the operation is called. A best practice is to use
+	// the same display name at the same call point in an application.
+	// This makes it easier to correlate spans in different traces.
+	//
+	// This field is semantically required to be set to non-empty string.
+	// Empty value is equivalent to an unknown span name.
+	//
+	// This field is required.
+	Name string `json:"name"`
+	// Distinguishes between spans generated in a particular context. For example,
+	// two spans with the same name may be distinguished using `CLIENT` (caller)
+	// and `SERVER` (callee) to identify queueing latency associated with the span.
+	Kind SpanKind `json:"kind,omitempty"`
+	// start_time_unix_nano is the start time of the span. On the client side, this is the time
+	// kept by the local machine where the span execution starts. On the server side, this
+	// is the time when the server's application handler starts running.
+	// Value is UNIX Epoch time in nanoseconds since 00:00:00 UTC on 1 January 1970.
+	//
+	// This field is semantically required and it is expected that end_time >= start_time.
+	StartTime time.Time `json:"startTimeUnixNano,omitempty"`
+	// end_time_unix_nano is the end time of the span. On the client side, this is the time
+	// kept by the local machine where the span execution ends. On the server side, this
+	// is the time when the server application handler stops running.
+	// Value is UNIX Epoch time in nanoseconds since 00:00:00 UTC on 1 January 1970.
+	//
+	// This field is semantically required and it is expected that end_time >= start_time.
+	EndTime time.Time `json:"endTimeUnixNano,omitempty"`
+	// attributes is a collection of key/value pairs. Note, global attributes
+	// like server name can be set using the resource API. Examples of attributes:
+	//
+	//     "/http/user_agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36"
+	//     "/http/server_latency": 300
+	//     "example.com/myattribute": true
+	//     "example.com/score": 10.239
+	//
+	// The OpenTelemetry API specification further restricts the allowed value types:
+	// https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/common/README.md#attribute
+	// Attribute keys MUST be unique (it is not allowed to have more than one
+	// attribute with the same key).
+	Attrs []Attr `json:"attributes,omitempty"`
+	// dropped_attributes_count is the number of attributes that were discarded. Attributes
+	// can be discarded because their keys are too long or because there are too many
+	// attributes. If this value is 0, then no attributes were dropped.
+	DroppedAttrs uint32 `json:"droppedAttributesCount,omitempty"`
+	// events is a collection of Event items.
+	Events []*SpanEvent `json:"events,omitempty"`
+	// dropped_events_count is the number of dropped events. If the value is 0, then no
+	// events were dropped.
+	DroppedEvents uint32 `json:"droppedEventsCount,omitempty"`
+	// links is a collection of Links, which are references from this span to a span
+	// in the same or different trace.
+	Links []*SpanLink `json:"links,omitempty"`
+	// dropped_links_count is the number of dropped links after the maximum size was
+	// enforced. If this value is 0, then no links were dropped.
+	DroppedLinks uint32 `json:"droppedLinksCount,omitempty"`
+	// An optional final status for this span. Semantically when Status isn't set, it means
+	// span's status code is unset, i.e. assume STATUS_CODE_UNSET (code = 0).
+	Status *Status `json:"status,omitempty"`
+}
+
+// MarshalJSON encodes s into OTLP formatted JSON.
+func (s Span) MarshalJSON() ([]byte, error) {
+	startT := s.StartTime.UnixNano()
+	if s.StartTime.IsZero() || startT < 0 {
+		startT = 0
+	}
+
+	endT := s.EndTime.UnixNano()
+	if s.EndTime.IsZero() || endT < 0 {
+		endT = 0
+	}
+
+	// Override non-empty default SpanID marshal and omitempty.
+	var parentSpanId string
+	if !s.ParentSpanID.IsEmpty() {
+		b := make([]byte, hex.EncodedLen(spanIDSize))
+		hex.Encode(b, s.ParentSpanID[:])
+		parentSpanId = string(b)
+	}
+
+	type Alias Span
+	return json.Marshal(struct {
+		Alias
+		ParentSpanID string `json:"parentSpanId,omitempty"`
+		StartTime    uint64 `json:"startTimeUnixNano,omitempty"`
+		EndTime      uint64 `json:"endTimeUnixNano,omitempty"`
+	}{
+		Alias:        Alias(s),
+		ParentSpanID: parentSpanId,
+		StartTime:    uint64(startT), // nolint:gosec  // >0 checked above.
+		EndTime:      uint64(endT),   // nolint:gosec  // >0 checked above.
+	})
+}
+
+// UnmarshalJSON decodes the OTLP formatted JSON contained in data into s.
+func (s *Span) UnmarshalJSON(data []byte) error {
+	decoder := json.NewDecoder(bytes.NewReader(data))
+
+	t, err := decoder.Token()
+	if err != nil {
+		return err
+	}
+	if t != json.Delim('{') {
+		return errors.New("invalid Span type")
+	}
+
+	for decoder.More() {
+		keyIface, err := decoder.Token()
+		if err != nil {
+			if errors.Is(err, io.EOF) {
+				// Empty.
+				return nil
+			}
+			return err
+		}
+
+		key, ok := keyIface.(string)
+		if !ok {
+			return fmt.Errorf("invalid Span field: %#v", keyIface)
+		}
+
+		switch key {
+		case "traceId", "trace_id":
+			err = decoder.Decode(&s.TraceID)
+		case "spanId", "span_id":
+			err = decoder.Decode(&s.SpanID)
+		case "traceState", "trace_state":
+			err = decoder.Decode(&s.TraceState)
+		case "parentSpanId", "parent_span_id":
+			err = decoder.Decode(&s.ParentSpanID)
+		case "flags":
+			err = decoder.Decode(&s.Flags)
+		case "name":
+			err = decoder.Decode(&s.Name)
+		case "kind":
+			err = decoder.Decode(&s.Kind)
+		case "startTimeUnixNano", "start_time_unix_nano":
+			var val protoUint64
+			err = decoder.Decode(&val)
+			v := int64(min(val.Uint64(), math.MaxInt64)) // nolint: gosec  // Overflow checked.
+			s.StartTime = time.Unix(0, v)
+		case "endTimeUnixNano", "end_time_unix_nano":
+			var val protoUint64
+			err = decoder.Decode(&val)
+			v := int64(min(val.Uint64(), math.MaxInt64)) // nolint: gosec  // Overflow checked.
+			s.EndTime = time.Unix(0, v)
+		case "attributes":
+			err = decoder.Decode(&s.Attrs)
+		case "droppedAttributesCount", "dropped_attributes_count":
+			err = decoder.Decode(&s.DroppedAttrs)
+		case "events":
+			err = decoder.Decode(&s.Events)
+		case "droppedEventsCount", "dropped_events_count":
+			err = decoder.Decode(&s.DroppedEvents)
+		case "links":
+			err = decoder.Decode(&s.Links)
+		case "droppedLinksCount", "dropped_links_count":
+			err = decoder.Decode(&s.DroppedLinks)
+		case "status":
+			err = decoder.Decode(&s.Status)
+		default:
+			// Skip unknown.
+		}
+
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// SpanFlags represents constants used to interpret the
+// Span.flags field, which is protobuf 'fixed32' type and is to
+// be used as bit-fields. Each non-zero value defined in this enum is
+// a bit-mask.  To extract the bit-field, for example, use an
+// expression like:
+//
+//	(span.flags & SPAN_FLAGS_TRACE_FLAGS_MASK)
+//
+// See https://www.w3.org/TR/trace-context-2/#trace-flags for the flag definitions.
+//
+// Note that Span flags were introduced in version 1.1 of the
+// OpenTelemetry protocol.  Older Span producers do not set this
+// field, consequently consumers should not rely on the absence of a
+// particular flag bit to indicate the presence of a particular feature.
+type SpanFlags int32
+
+const (
+	// Bits 0-7 are used for trace flags.
+	SpanFlagsTraceFlagsMask SpanFlags = 255
+	// Bits 8 and 9 are used to indicate that the parent span or link span is remote.
+	// Bit 8 (`HAS_IS_REMOTE`) indicates whether the value is known.
+	// Bit 9 (`IS_REMOTE`) indicates whether the span or link is remote.
+	SpanFlagsContextHasIsRemoteMask SpanFlags = 256
+	// SpanFlagsContextHasIsRemoteMask indicates the Span is remote.
+	SpanFlagsContextIsRemoteMask SpanFlags = 512
+)
+
+// SpanKind is the type of span. Can be used to specify additional relationships between spans
+// in addition to a parent/child relationship.
+type SpanKind int32
+
+const (
+	// Indicates that the span represents an internal operation within an application,
+	// as opposed to an operation happening at the boundaries. Default value.
+	SpanKindInternal SpanKind = 1
+	// Indicates that the span covers server-side handling of an RPC or other
+	// remote network request.
+	SpanKindServer SpanKind = 2
+	// Indicates that the span describes a request to some remote service.
+	SpanKindClient SpanKind = 3
+	// Indicates that the span describes a producer sending a message to a broker.
+	// Unlike CLIENT and SERVER, there is often no direct critical path latency relationship
+	// between producer and consumer spans. A PRODUCER span ends when the message was accepted
+	// by the broker while the logical processing of the message might span a much longer time.
+	SpanKindProducer SpanKind = 4
+	// Indicates that the span describes consumer receiving a message from a broker.
+	// Like the PRODUCER kind, there is often no direct critical path latency relationship
+	// between producer and consumer spans.
+	SpanKindConsumer SpanKind = 5
+)
+
+// Event is a time-stamped annotation of the span, consisting of user-supplied
+// text description and key-value pairs.
+type SpanEvent struct {
+	// time_unix_nano is the time the event occurred.
+	Time time.Time `json:"timeUnixNano,omitempty"`
+	// name of the event.
+	// This field is semantically required to be set to non-empty string.
+	Name string `json:"name,omitempty"`
+	// attributes is a collection of attribute key/value pairs on the event.
+	// Attribute keys MUST be unique (it is not allowed to have more than one
+	// attribute with the same key).
+	Attrs []Attr `json:"attributes,omitempty"`
+	// dropped_attributes_count is the number of dropped attributes. If the value is 0,
+	// then no attributes were dropped.
+	DroppedAttrs uint32 `json:"droppedAttributesCount,omitempty"`
+}
+
+// MarshalJSON encodes e into OTLP formatted JSON.
+func (e SpanEvent) MarshalJSON() ([]byte, error) {
+	t := e.Time.UnixNano()
+	if e.Time.IsZero() || t < 0 {
+		t = 0
+	}
+
+	type Alias SpanEvent
+	return json.Marshal(struct {
+		Alias
+		Time uint64 `json:"timeUnixNano,omitempty"`
+	}{
+		Alias: Alias(e),
+		Time:  uint64(t), // nolint: gosec  // >0 checked above
+	})
+}
+
+// UnmarshalJSON decodes the OTLP formatted JSON contained in data into se.
+func (se *SpanEvent) UnmarshalJSON(data []byte) error {
+	decoder := json.NewDecoder(bytes.NewReader(data))
+
+	t, err := decoder.Token()
+	if err != nil {
+		return err
+	}
+	if t != json.Delim('{') {
+		return errors.New("invalid SpanEvent type")
+	}
+
+	for decoder.More() {
+		keyIface, err := decoder.Token()
+		if err != nil {
+			if errors.Is(err, io.EOF) {
+				// Empty.
+				return nil
+			}
+			return err
+		}
+
+		key, ok := keyIface.(string)
+		if !ok {
+			return fmt.Errorf("invalid SpanEvent field: %#v", keyIface)
+		}
+
+		switch key {
+		case "timeUnixNano", "time_unix_nano":
+			var val protoUint64
+			err = decoder.Decode(&val)
+			v := int64(min(val.Uint64(), math.MaxInt64)) // nolint: gosec  // Overflow checked.
+			se.Time = time.Unix(0, v)
+		case "name":
+			err = decoder.Decode(&se.Name)
+		case "attributes":
+			err = decoder.Decode(&se.Attrs)
+		case "droppedAttributesCount", "dropped_attributes_count":
+			err = decoder.Decode(&se.DroppedAttrs)
+		default:
+			// Skip unknown.
+		}
+
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// A pointer from the current span to another span in the same trace or in a
+// different trace. For example, this can be used in batching operations,
+// where a single batch handler processes multiple requests from different
+// traces or when the handler receives a request from a different project.
+type SpanLink struct {
+	// A unique identifier of a trace that this linked span is part of. The ID is a
+	// 16-byte array.
+	TraceID TraceID `json:"traceId,omitempty"`
+	// A unique identifier for the linked span. The ID is an 8-byte array.
+	SpanID SpanID `json:"spanId,omitempty"`
+	// The trace_state associated with the link.
+	TraceState string `json:"traceState,omitempty"`
+	// attributes is a collection of attribute key/value pairs on the link.
+	// Attribute keys MUST be unique (it is not allowed to have more than one
+	// attribute with the same key).
+	Attrs []Attr `json:"attributes,omitempty"`
+	// dropped_attributes_count is the number of dropped attributes. If the value is 0,
+	// then no attributes were dropped.
+	DroppedAttrs uint32 `json:"droppedAttributesCount,omitempty"`
+	// Flags, a bit field.
+	//
+	// Bits 0-7 (8 least significant bits) are the trace flags as defined in W3C Trace
+	// Context specification. To read the 8-bit W3C trace flag, use
+	// `flags & SPAN_FLAGS_TRACE_FLAGS_MASK`.
+	//
+	// See https://www.w3.org/TR/trace-context-2/#trace-flags for the flag definitions.
+	//
+	// Bits 8 and 9 represent the 3 states of whether the link is remote.
+	// The states are (unknown, is not remote, is remote).
+	// To read whether the value is known, use `(flags & SPAN_FLAGS_CONTEXT_HAS_IS_REMOTE_MASK) != 0`.
+	// To read whether the link is remote, use `(flags & SPAN_FLAGS_CONTEXT_IS_REMOTE_MASK) != 0`.
+	//
+	// Readers MUST NOT assume that bits 10-31 (22 most significant bits) will be zero.
+	// When creating new spans, bits 10-31 (most-significant 22-bits) MUST be zero.
+	//
+	// [Optional].
+	Flags uint32 `json:"flags,omitempty"`
+}
+
+// UnmarshalJSON decodes the OTLP formatted JSON contained in data into sl.
+func (sl *SpanLink) UnmarshalJSON(data []byte) error {
+	decoder := json.NewDecoder(bytes.NewReader(data))
+
+	t, err := decoder.Token()
+	if err != nil {
+		return err
+	}
+	if t != json.Delim('{') {
+		return errors.New("invalid SpanLink type")
+	}
+
+	for decoder.More() {
+		keyIface, err := decoder.Token()
+		if err != nil {
+			if errors.Is(err, io.EOF) {
+				// Empty.
+				return nil
+			}
+			return err
+		}
+
+		key, ok := keyIface.(string)
+		if !ok {
+			return fmt.Errorf("invalid SpanLink field: %#v", keyIface)
+		}
+
+		switch key {
+		case "traceId", "trace_id":
+			err = decoder.Decode(&sl.TraceID)
+		case "spanId", "span_id":
+			err = decoder.Decode(&sl.SpanID)
+		case "traceState", "trace_state":
+			err = decoder.Decode(&sl.TraceState)
+		case "attributes":
+			err = decoder.Decode(&sl.Attrs)
+		case "droppedAttributesCount", "dropped_attributes_count":
+			err = decoder.Decode(&sl.DroppedAttrs)
+		case "flags":
+			err = decoder.Decode(&sl.Flags)
+		default:
+			// Skip unknown.
+		}
+
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}

vendor/go.opentelemetry.io/otel/trace/internal/telemetry/status.go

@@ -0,0 +1,40 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package telemetry // import "go.opentelemetry.io/otel/trace/internal/telemetry"
+
+// For the semantics of status codes see
+// https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/api.md#set-status
+type StatusCode int32
+
+const (
+	// The default status.
+	StatusCodeUnset StatusCode = 0
+	// The Span has been validated by an Application developer or Operator to
+	// have completed successfully.
+	StatusCodeOK StatusCode = 1
+	// The Span contains an error.
+	StatusCodeError StatusCode = 2
+)
+
+var statusCodeStrings = []string{
+	"Unset",
+	"OK",
+	"Error",
+}
+
+func (s StatusCode) String() string {
+	if s >= 0 && int(s) < len(statusCodeStrings) {
+		return statusCodeStrings[s]
+	}
+	return "<unknown telemetry.StatusCode>"
+}
+
+// The Status type defines a logical error model that is suitable for different
+// programming environments, including REST APIs and RPC APIs.
+type Status struct {
+	// A developer-facing human readable error message.
+	Message string `json:"message,omitempty"`
+	// The status code.
+	Code StatusCode `json:"code,omitempty"`
+}

vendor/go.opentelemetry.io/otel/trace/internal/telemetry/traces.go

@@ -0,0 +1,189 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package telemetry // import "go.opentelemetry.io/otel/trace/internal/telemetry"
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+)
+
+// Traces represents the traces data that can be stored in a persistent storage,
+// OR can be embedded by other protocols that transfer OTLP traces data but do
+// not implement the OTLP protocol.
+//
+// The main difference between this message and collector protocol is that
+// in this message there will not be any "control" or "metadata" specific to
+// OTLP protocol.
+//
+// When new fields are added into this message, the OTLP request MUST be updated
+// as well.
+type Traces struct {
+	// An array of ResourceSpans.
+	// For data coming from a single resource this array will typically contain
+	// one element. Intermediary nodes that receive data from multiple origins
+	// typically batch the data before forwarding further and in that case this
+	// array will contain multiple elements.
+	ResourceSpans []*ResourceSpans `json:"resourceSpans,omitempty"`
+}
+
+// UnmarshalJSON decodes the OTLP formatted JSON contained in data into td.
+func (td *Traces) UnmarshalJSON(data []byte) error {
+	decoder := json.NewDecoder(bytes.NewReader(data))
+
+	t, err := decoder.Token()
+	if err != nil {
+		return err
+	}
+	if t != json.Delim('{') {
+		return errors.New("invalid TracesData type")
+	}
+
+	for decoder.More() {
+		keyIface, err := decoder.Token()
+		if err != nil {
+			if errors.Is(err, io.EOF) {
+				// Empty.
+				return nil
+			}
+			return err
+		}
+
+		key, ok := keyIface.(string)
+		if !ok {
+			return fmt.Errorf("invalid TracesData field: %#v", keyIface)
+		}
+
+		switch key {
+		case "resourceSpans", "resource_spans":
+			err = decoder.Decode(&td.ResourceSpans)
+		default:
+			// Skip unknown.
+		}
+
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// A collection of ScopeSpans from a Resource.
+type ResourceSpans struct {
+	// The resource for the spans in this message.
+	// If this field is not set then no resource info is known.
+	Resource Resource `json:"resource"`
+	// A list of ScopeSpans that originate from a resource.
+	ScopeSpans []*ScopeSpans `json:"scopeSpans,omitempty"`
+	// This schema_url applies to the data in the "resource" field. It does not apply
+	// to the data in the "scope_spans" field which have their own schema_url field.
+	SchemaURL string `json:"schemaUrl,omitempty"`
+}
+
+// UnmarshalJSON decodes the OTLP formatted JSON contained in data into rs.
+func (rs *ResourceSpans) UnmarshalJSON(data []byte) error {
+	decoder := json.NewDecoder(bytes.NewReader(data))
+
+	t, err := decoder.Token()
+	if err != nil {
+		return err
+	}
+	if t != json.Delim('{') {
+		return errors.New("invalid ResourceSpans type")
+	}
+
+	for decoder.More() {
+		keyIface, err := decoder.Token()
+		if err != nil {
+			if errors.Is(err, io.EOF) {
+				// Empty.
+				return nil
+			}
+			return err
+		}
+
+		key, ok := keyIface.(string)
+		if !ok {
+			return fmt.Errorf("invalid ResourceSpans field: %#v", keyIface)
+		}
+
+		switch key {
+		case "resource":
+			err = decoder.Decode(&rs.Resource)
+		case "scopeSpans", "scope_spans":
+			err = decoder.Decode(&rs.ScopeSpans)
+		case "schemaUrl", "schema_url":
+			err = decoder.Decode(&rs.SchemaURL)
+		default:
+			// Skip unknown.
+		}
+
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// A collection of Spans produced by an InstrumentationScope.
+type ScopeSpans struct {
+	// The instrumentation scope information for the spans in this message.
+	// Semantically when InstrumentationScope isn't set, it is equivalent with
+	// an empty instrumentation scope name (unknown).
+	Scope *Scope `json:"scope"`
+	// A list of Spans that originate from an instrumentation scope.
+	Spans []*Span `json:"spans,omitempty"`
+	// The Schema URL, if known. This is the identifier of the Schema that the span data
+	// is recorded in. To learn more about Schema URL see
+	// https://opentelemetry.io/docs/specs/otel/schemas/#schema-url
+	// This schema_url applies to all spans and span events in the "spans" field.
+	SchemaURL string `json:"schemaUrl,omitempty"`
+}
+
+// UnmarshalJSON decodes the OTLP formatted JSON contained in data into ss.
+func (ss *ScopeSpans) UnmarshalJSON(data []byte) error {
+	decoder := json.NewDecoder(bytes.NewReader(data))
+
+	t, err := decoder.Token()
+	if err != nil {
+		return err
+	}
+	if t != json.Delim('{') {
+		return errors.New("invalid ScopeSpans type")
+	}
+
+	for decoder.More() {
+		keyIface, err := decoder.Token()
+		if err != nil {
+			if errors.Is(err, io.EOF) {
+				// Empty.
+				return nil
+			}
+			return err
+		}
+
+		key, ok := keyIface.(string)
+		if !ok {
+			return fmt.Errorf("invalid ScopeSpans field: %#v", keyIface)
+		}
+
+		switch key {
+		case "scope":
+			err = decoder.Decode(&ss.Scope)
+		case "spans":
+			err = decoder.Decode(&ss.Spans)
+		case "schemaUrl", "schema_url":
+			err = decoder.Decode(&ss.SchemaURL)
+		default:
+			// Skip unknown.
+		}
+
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}

vendor/go.opentelemetry.io/otel/trace/internal/telemetry/value.go

@@ -0,0 +1,453 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package telemetry // import "go.opentelemetry.io/otel/trace/internal/telemetry"
+
+import (
+	"bytes"
+	"cmp"
+	"encoding/base64"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"math"
+	"slices"
+	"strconv"
+	"unsafe"
+)
+
+// A Value represents a structured value.
+// A zero value is valid and represents an empty value.
+type Value struct {
+	// Ensure forward compatibility by explicitly making this not comparable.
+	noCmp [0]func() //nolint: unused  // This is indeed used.
+
+	// num holds the value for Int64, Float64, and Bool. It holds the length
+	// for String, Bytes, Slice, Map.
+	num uint64
+	// any holds either the KindBool, KindInt64, KindFloat64, stringptr,
+	// bytesptr, sliceptr, or mapptr. If KindBool, KindInt64, or KindFloat64
+	// then the value of Value is in num as described above. Otherwise, it
+	// contains the value wrapped in the appropriate type.
+	any any
+}
+
+type (
+	// sliceptr represents a value in Value.any for KindString Values.
+	stringptr *byte
+	// bytesptr represents a value in Value.any for KindBytes Values.
+	bytesptr *byte
+	// sliceptr represents a value in Value.any for KindSlice Values.
+	sliceptr *Value
+	// mapptr represents a value in Value.any for KindMap Values.
+	mapptr *Attr
+)
+
+// ValueKind is the kind of a [Value].
+type ValueKind int
+
+// ValueKind values.
+const (
+	ValueKindEmpty ValueKind = iota
+	ValueKindBool
+	ValueKindFloat64
+	ValueKindInt64
+	ValueKindString
+	ValueKindBytes
+	ValueKindSlice
+	ValueKindMap
+)
+
+var valueKindStrings = []string{
+	"Empty",
+	"Bool",
+	"Float64",
+	"Int64",
+	"String",
+	"Bytes",
+	"Slice",
+	"Map",
+}
+
+func (k ValueKind) String() string {
+	if k >= 0 && int(k) < len(valueKindStrings) {
+		return valueKindStrings[k]
+	}
+	return "<unknown telemetry.ValueKind>"
+}
+
+// StringValue returns a new [Value] for a string.
+func StringValue(v string) Value {
+	return Value{
+		num: uint64(len(v)),
+		any: stringptr(unsafe.StringData(v)),
+	}
+}
+
+// IntValue returns a [Value] for an int.
+func IntValue(v int) Value { return Int64Value(int64(v)) }
+
+// Int64Value returns a [Value] for an int64.
+func Int64Value(v int64) Value {
+	return Value{
+		num: uint64(v), // nolint: gosec  // Store raw bytes.
+		any: ValueKindInt64,
+	}
+}
+
+// Float64Value returns a [Value] for a float64.
+func Float64Value(v float64) Value {
+	return Value{num: math.Float64bits(v), any: ValueKindFloat64}
+}
+
+// BoolValue returns a [Value] for a bool.
+func BoolValue(v bool) Value { //nolint:revive // Not a control flag.
+	var n uint64
+	if v {
+		n = 1
+	}
+	return Value{num: n, any: ValueKindBool}
+}
+
+// BytesValue returns a [Value] for a byte slice. The passed slice must not be
+// changed after it is passed.
+func BytesValue(v []byte) Value {
+	return Value{
+		num: uint64(len(v)),
+		any: bytesptr(unsafe.SliceData(v)),
+	}
+}
+
+// SliceValue returns a [Value] for a slice of [Value]. The passed slice must
+// not be changed after it is passed.
+func SliceValue(vs ...Value) Value {
+	return Value{
+		num: uint64(len(vs)),
+		any: sliceptr(unsafe.SliceData(vs)),
+	}
+}
+
+// MapValue returns a new [Value] for a slice of key-value pairs. The passed
+// slice must not be changed after it is passed.
+func MapValue(kvs ...Attr) Value {
+	return Value{
+		num: uint64(len(kvs)),
+		any: mapptr(unsafe.SliceData(kvs)),
+	}
+}
+
+// AsString returns the value held by v as a string.
+func (v Value) AsString() string {
+	if sp, ok := v.any.(stringptr); ok {
+		return unsafe.String(sp, v.num)
+	}
+	// TODO: error handle
+	return ""
+}
+
+// asString returns the value held by v as a string. It will panic if the Value
+// is not KindString.
+func (v Value) asString() string {
+	return unsafe.String(v.any.(stringptr), v.num)
+}
+
+// AsInt64 returns the value held by v as an int64.
+func (v Value) AsInt64() int64 {
+	if v.Kind() != ValueKindInt64 {
+		// TODO: error handle
+		return 0
+	}
+	return v.asInt64()
+}
+
+// asInt64 returns the value held by v as an int64. If v is not of KindInt64,
+// this will return garbage.
+func (v Value) asInt64() int64 {
+	// Assumes v.num was a valid int64 (overflow not checked).
+	return int64(v.num) // nolint: gosec
+}
+
+// AsBool returns the value held by v as a bool.
+func (v Value) AsBool() bool {
+	if v.Kind() != ValueKindBool {
+		// TODO: error handle
+		return false
+	}
+	return v.asBool()
+}
+
+// asBool returns the value held by v as a bool. If v is not of KindBool, this
+// will return garbage.
+func (v Value) asBool() bool { return v.num == 1 }
+
+// AsFloat64 returns the value held by v as a float64.
+func (v Value) AsFloat64() float64 {
+	if v.Kind() != ValueKindFloat64 {
+		// TODO: error handle
+		return 0
+	}
+	return v.asFloat64()
+}
+
+// asFloat64 returns the value held by v as a float64. If v is not of
+// KindFloat64, this will return garbage.
+func (v Value) asFloat64() float64 { return math.Float64frombits(v.num) }
+
+// AsBytes returns the value held by v as a []byte.
+func (v Value) AsBytes() []byte {
+	if sp, ok := v.any.(bytesptr); ok {
+		return unsafe.Slice((*byte)(sp), v.num)
+	}
+	// TODO: error handle
+	return nil
+}
+
+// asBytes returns the value held by v as a []byte. It will panic if the Value
+// is not KindBytes.
+func (v Value) asBytes() []byte {
+	return unsafe.Slice((*byte)(v.any.(bytesptr)), v.num)
+}
+
+// AsSlice returns the value held by v as a []Value.
+func (v Value) AsSlice() []Value {
+	if sp, ok := v.any.(sliceptr); ok {
+		return unsafe.Slice((*Value)(sp), v.num)
+	}
+	// TODO: error handle
+	return nil
+}
+
+// asSlice returns the value held by v as a []Value. It will panic if the Value
+// is not KindSlice.
+func (v Value) asSlice() []Value {
+	return unsafe.Slice((*Value)(v.any.(sliceptr)), v.num)
+}
+
+// AsMap returns the value held by v as a []Attr.
+func (v Value) AsMap() []Attr {
+	if sp, ok := v.any.(mapptr); ok {
+		return unsafe.Slice((*Attr)(sp), v.num)
+	}
+	// TODO: error handle
+	return nil
+}
+
+// asMap returns the value held by v as a []Attr. It will panic if the
+// Value is not KindMap.
+func (v Value) asMap() []Attr {
+	return unsafe.Slice((*Attr)(v.any.(mapptr)), v.num)
+}
+
+// Kind returns the Kind of v.
+func (v Value) Kind() ValueKind {
+	switch x := v.any.(type) {
+	case ValueKind:
+		return x
+	case stringptr:
+		return ValueKindString
+	case bytesptr:
+		return ValueKindBytes
+	case sliceptr:
+		return ValueKindSlice
+	case mapptr:
+		return ValueKindMap
+	default:
+		return ValueKindEmpty
+	}
+}
+
+// Empty returns if v does not hold any value.
+func (v Value) Empty() bool { return v.Kind() == ValueKindEmpty }
+
+// Equal returns if v is equal to w.
+func (v Value) Equal(w Value) bool {
+	k1 := v.Kind()
+	k2 := w.Kind()
+	if k1 != k2 {
+		return false
+	}
+	switch k1 {
+	case ValueKindInt64, ValueKindBool:
+		return v.num == w.num
+	case ValueKindString:
+		return v.asString() == w.asString()
+	case ValueKindFloat64:
+		return v.asFloat64() == w.asFloat64()
+	case ValueKindSlice:
+		return slices.EqualFunc(v.asSlice(), w.asSlice(), Value.Equal)
+	case ValueKindMap:
+		sv := sortMap(v.asMap())
+		sw := sortMap(w.asMap())
+		return slices.EqualFunc(sv, sw, Attr.Equal)
+	case ValueKindBytes:
+		return bytes.Equal(v.asBytes(), w.asBytes())
+	case ValueKindEmpty:
+		return true
+	default:
+		// TODO: error handle
+		return false
+	}
+}
+
+func sortMap(m []Attr) []Attr {
+	sm := make([]Attr, len(m))
+	copy(sm, m)
+	slices.SortFunc(sm, func(a, b Attr) int {
+		return cmp.Compare(a.Key, b.Key)
+	})
+
+	return sm
+}
+
+// String returns Value's value as a string, formatted like [fmt.Sprint].
+//
+// The returned string is meant for debugging;
+// the string representation is not stable.
+func (v Value) String() string {
+	switch v.Kind() {
+	case ValueKindString:
+		return v.asString()
+	case ValueKindInt64:
+		// Assumes v.num was a valid int64 (overflow not checked).
+		return strconv.FormatInt(int64(v.num), 10) // nolint: gosec
+	case ValueKindFloat64:
+		return strconv.FormatFloat(v.asFloat64(), 'g', -1, 64)
+	case ValueKindBool:
+		return strconv.FormatBool(v.asBool())
+	case ValueKindBytes:
+		return fmt.Sprint(v.asBytes())
+	case ValueKindMap:
+		return fmt.Sprint(v.asMap())
+	case ValueKindSlice:
+		return fmt.Sprint(v.asSlice())
+	case ValueKindEmpty:
+		return "<nil>"
+	default:
+		// Try to handle this as gracefully as possible.
+		//
+		// Don't panic here. The goal here is to have developers find this
+		// first if a slog.Kind is is not handled. It is
+		// preferable to have user's open issue asking why their attributes
+		// have a "unhandled: " prefix than say that their code is panicking.
+		return fmt.Sprintf("<unhandled telemetry.ValueKind: %s>", v.Kind())
+	}
+}
+
+// MarshalJSON encodes v into OTLP formatted JSON.
+func (v *Value) MarshalJSON() ([]byte, error) {
+	switch v.Kind() {
+	case ValueKindString:
+		return json.Marshal(struct {
+			Value string `json:"stringValue"`
+		}{v.asString()})
+	case ValueKindInt64:
+		return json.Marshal(struct {
+			Value string `json:"intValue"`
+		}{strconv.FormatInt(int64(v.num), 10)}) // nolint: gosec  // From raw bytes.
+	case ValueKindFloat64:
+		return json.Marshal(struct {
+			Value float64 `json:"doubleValue"`
+		}{v.asFloat64()})
+	case ValueKindBool:
+		return json.Marshal(struct {
+			Value bool `json:"boolValue"`
+		}{v.asBool()})
+	case ValueKindBytes:
+		return json.Marshal(struct {
+			Value []byte `json:"bytesValue"`
+		}{v.asBytes()})
+	case ValueKindMap:
+		return json.Marshal(struct {
+			Value struct {
+				Values []Attr `json:"values"`
+			} `json:"kvlistValue"`
+		}{struct {
+			Values []Attr `json:"values"`
+		}{v.asMap()}})
+	case ValueKindSlice:
+		return json.Marshal(struct {
+			Value struct {
+				Values []Value `json:"values"`
+			} `json:"arrayValue"`
+		}{struct {
+			Values []Value `json:"values"`
+		}{v.asSlice()}})
+	case ValueKindEmpty:
+		return nil, nil
+	default:
+		return nil, fmt.Errorf("unknown Value kind: %s", v.Kind().String())
+	}
+}
+
+// UnmarshalJSON decodes the OTLP formatted JSON contained in data into v.
+func (v *Value) UnmarshalJSON(data []byte) error {
+	decoder := json.NewDecoder(bytes.NewReader(data))
+
+	t, err := decoder.Token()
+	if err != nil {
+		return err
+	}
+	if t != json.Delim('{') {
+		return errors.New("invalid Value type")
+	}
+
+	for decoder.More() {
+		keyIface, err := decoder.Token()
+		if err != nil {
+			if errors.Is(err, io.EOF) {
+				// Empty.
+				return nil
+			}
+			return err
+		}
+
+		key, ok := keyIface.(string)
+		if !ok {
+			return fmt.Errorf("invalid Value key: %#v", keyIface)
+		}
+
+		switch key {
+		case "stringValue", "string_value":
+			var val string
+			err = decoder.Decode(&val)
+			*v = StringValue(val)
+		case "boolValue", "bool_value":
+			var val bool
+			err = decoder.Decode(&val)
+			*v = BoolValue(val)
+		case "intValue", "int_value":
+			var val protoInt64
+			err = decoder.Decode(&val)
+			*v = Int64Value(val.Int64())
+		case "doubleValue", "double_value":
+			var val float64
+			err = decoder.Decode(&val)
+			*v = Float64Value(val)
+		case "bytesValue", "bytes_value":
+			var val64 string
+			if err := decoder.Decode(&val64); err != nil {
+				return err
+			}
+			var val []byte
+			val, err = base64.StdEncoding.DecodeString(val64)
+			*v = BytesValue(val)
+		case "arrayValue", "array_value":
+			var val struct{ Values []Value }
+			err = decoder.Decode(&val)
+			*v = SliceValue(val.Values...)
+		case "kvlistValue", "kvlist_value":
+			var val struct{ Values []Attr }
+			err = decoder.Decode(&val)
+			*v = MapValue(val.Values...)
+		default:
+			// Skip unknown.
+			continue
+		}
+		// Use first valid. Ignore the rest.
+		return err
+	}
+
+	// Only unknown fields. Return nil without unmarshaling any value.
+	return nil
+}

vendor/go.opentelemetry.io/otel/trace/noop.go

@@ -82,4 +82,22 @@ func (noopSpan) AddLink(Link) {}
 func (noopSpan) SetName(string) {}
 
 // TracerProvider returns a no-op TracerProvider.
-func (noopSpan) TracerProvider() TracerProvider { return noopTracerProvider{} }
+func (s noopSpan) TracerProvider() TracerProvider {
+	return s.tracerProvider(autoInstEnabled)
+}
+
+// autoInstEnabled defines if the auto-instrumentation SDK is enabled.
+//
+// The auto-instrumentation is expected to overwrite this value to true when it
+// attaches to the process.
+var autoInstEnabled = new(bool)
+
+// tracerProvider return a noopTracerProvider if autoEnabled is false,
+// otherwise it will return a TracerProvider from the sdk package used in
+// auto-instrumentation.
+func (noopSpan) tracerProvider(autoEnabled *bool) TracerProvider {
+	if *autoEnabled {
+		return newAutoTracerProvider()
+	}
+	return noopTracerProvider{}
+}

vendor/go.opentelemetry.io/otel/version.go

@@ -5,5 +5,5 @@ package otel // import "go.opentelemetry.io/otel"
 
 // Version is the current release version of OpenTelemetry in use.
 func Version() string {
-	return "1.33.0"
+	return "1.35.0"
 }

vendor/go.opentelemetry.io/otel/versions.yaml

@@ -3,7 +3,7 @@
 
 module-sets:
   stable-v1:
-    version: v1.33.0
+    version: v1.35.0
     modules:
       - go.opentelemetry.io/otel
       - go.opentelemetry.io/otel/bridge/opencensus
@@ -23,11 +23,11 @@ module-sets:
       - go.opentelemetry.io/otel/sdk/metric
       - go.opentelemetry.io/otel/trace
   experimental-metrics:
-    version: v0.55.0
+    version: v0.57.0
     modules:
       - go.opentelemetry.io/otel/exporters/prometheus
   experimental-logs:
-    version: v0.9.0
+    version: v0.11.0
     modules:
       - go.opentelemetry.io/otel/log
       - go.opentelemetry.io/otel/sdk/log
@@ -40,3 +40,4 @@ module-sets:
       - go.opentelemetry.io/otel/schema
 excluded-modules:
   - go.opentelemetry.io/otel/internal/tools
+  - go.opentelemetry.io/otel/trace/internal/telemetry/test