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authorLibravatar kim <grufwub@gmail.com>2025-09-04 15:29:27 +0200
committerLibravatar kim <gruf@noreply.codeberg.org>2025-09-04 15:29:27 +0200
commit78defcd9166a202eb3140dc27afd288e1f9bfec4 (patch)
treedfe061abc810096f0141b7f585d38401c099c488 /vendor/go.opentelemetry.io/otel/sdk/trace/internal/x/x.go
parent[performance] faster request id generation (#4405) (diff)
downloadgotosocial-78defcd9166a202eb3140dc27afd288e1f9bfec4.tar.xz
[chore] bump dependencies (#4406)
- codeberg.org/gruf/go-ffmpreg: v0.6.9 -> v0.6.10 - github.com/ncruces/go-sqlite3: v0.27.1 -> v0.28.0 - github.com/stretchr/testify: v1.10.0 -> v1.11.1 - github.com/tdewolff/minify/v2 v2.23.11 -> v2.24.2 - go.opentelemetry.io/otel{,/*}: v1.37.0 -> v1.38.0 - go.opentelemetry.io/contrib/*: v0.62.0 -> v0.63.0 Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4406 Co-authored-by: kim <grufwub@gmail.com> Co-committed-by: kim <grufwub@gmail.com>
Diffstat (limited to 'vendor/go.opentelemetry.io/otel/sdk/trace/internal/x/x.go')
-rw-r--r--vendor/go.opentelemetry.io/otel/sdk/trace/internal/x/x.go63
1 files changed, 63 insertions, 0 deletions
diff --git a/vendor/go.opentelemetry.io/otel/sdk/trace/internal/x/x.go b/vendor/go.opentelemetry.io/otel/sdk/trace/internal/x/x.go
new file mode 100644
index 000000000..2fcbbcc66
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/sdk/trace/internal/x/x.go
@@ -0,0 +1,63 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+// Package x documents experimental features for [go.opentelemetry.io/otel/sdk/trace].
+package x // import "go.opentelemetry.io/otel/sdk/trace/internal/x"
+
+import (
+ "os"
+ "strings"
+)
+
+// SelfObservability is an experimental feature flag that determines if SDK
+// self-observability metrics are enabled.
+//
+// To enable this feature set the OTEL_GO_X_SELF_OBSERVABILITY environment variable
+// to the case-insensitive string value of "true" (i.e. "True" and "TRUE"
+// will also enable this).
+var SelfObservability = newFeature("SELF_OBSERVABILITY", func(v string) (string, bool) {
+ if strings.EqualFold(v, "true") {
+ return v, true
+ }
+ return "", false
+})
+
+// Feature is an experimental feature control flag. It provides a uniform way
+// to interact with these feature flags and parse their values.
+type Feature[T any] struct {
+ key string
+ parse func(v string) (T, bool)
+}
+
+func newFeature[T any](suffix string, parse func(string) (T, bool)) Feature[T] {
+ const envKeyRoot = "OTEL_GO_X_"
+ return Feature[T]{
+ key: envKeyRoot + suffix,
+ parse: parse,
+ }
+}
+
+// Key returns the environment variable key that needs to be set to enable the
+// feature.
+func (f Feature[T]) Key() string { return f.key }
+
+// Lookup returns the user configured value for the feature and true if the
+// user has enabled the feature. Otherwise, if the feature is not enabled, a
+// zero-value and false are returned.
+func (f Feature[T]) Lookup() (v T, ok bool) {
+ // https://github.com/open-telemetry/opentelemetry-specification/blob/62effed618589a0bec416a87e559c0a9d96289bb/specification/configuration/sdk-environment-variables.md#parsing-empty-value
+ //
+ // > The SDK MUST interpret an empty value of an environment variable the
+ // > same way as when the variable is unset.
+ vRaw := os.Getenv(f.key)
+ if vRaw == "" {
+ return v, ok
+ }
+ return f.parse(vRaw)
+}
+
+// Enabled reports whether the feature is enabled.
+func (f Feature[T]) Enabled() bool {
+ _, ok := f.Lookup()
+ return ok
+}