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Minimal fixes for metrics

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This commit is contained in:
Andrej Mickov
2026-03-02 23:26:57 +01:00
parent 8c9cd96213
commit c03bd3e3a2
5 changed files with 22 additions and 10 deletions
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2
metrics/metrics.go
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@@ -762,7 +762,7 @@ func trimFloat(v float64) string {
}
func escapeLabelValue(value string) string {
value = strings.ReplaceAll(value, `\\`, `\\\\`)
value = strings.ReplaceAll(value, `\`, `\\`)
value = strings.ReplaceAll(value, "\n", `\\n`)
value = strings.ReplaceAll(value, `"`, `\\"`)
return value

8
metrics/metrics_test.go
View File

@@ -24,3 +24,11 @@ func TestRenderPrometheusHistogramNoEmptyLabelSet(t *testing.T) {
t.Fatalf("unexpected empty label set for gc count metric")
}
}
func TestEscapeLabelValueEscapesSingleBackslash(t *testing.T) {
got := escapeLabelValue(`a\b`)
want := `a\\b`
if got != want {
t.Fatalf("escapeLabelValue returned %q, want %q", got, want)
}
}