refactor(rw2): delete unused functions

Signed-off-by: György Krajcsovits <[email protected]>

Author: krajorama

pkg/mimirpb/compat_rw2.go

@@ -22,14 +22,6 @@ var (
 	invalidUnitRefError               = errors.New("proto: Remote Write 2.0 invalid unit reference")
 )
 
-// getRW2Symbol resolves the symbol reference to a string.
-func getRW2Symbol(ref uint32, symbols []string) (string, error) {
-	if ref < uint32(len(symbols)) {
-		return symbols[ref], nil
-	}
-	return "", fmt.Errorf("symbol reference %d is out of bounds", ref)
-}
-
 // rw2SymbolPageSize is the size of each page in bits.
 const rw2SymbolPageSize = 16
 

pkg/mimirpb/timeseries.go

@@ -79,27 +79,6 @@ func (p *PreallocWriteRequest) Unmarshal(dAtA []byte) error {
 	return p.WriteRequest.Unmarshal(dAtA)
 }
 
-// labelRefsToLabelAdapter converts a slice of label references to a slice
-// of LabelAdapter.
-func labelRefsToLabelAdapter(refs []uint32, symbols []string) ([]LabelAdapter, error) {
-	if len(refs)%2 != 0 {
-		return nil, fmt.Errorf("invalid number of label references: %d", len(refs))
-	}
-	labels := make([]LabelAdapter, 0, len(refs)/2)
-	for i := 0; i < len(refs); i += 2 {
-		name, err := getRW2Symbol(refs[i], symbols)
-		if err != nil {
-			return nil, err
-		}
-		value, err := getRW2Symbol(refs[i+1], symbols)
-		if err != nil {
-			return nil, err
-		}
-		labels = append(labels, LabelAdapter{Name: name, Value: value})
-	}
-	return labels, nil
-}
-
 // getMetricName cuts the mandatory OpenMetrics suffix from the
 // seriesName and returns the metric name and whether it cut the suffix.
 // Based on https://github.com/prometheus/OpenMetrics/blob/main/specification/OpenMetrics.md#suffixes
@@ -141,17 +120,6 @@ func getMetricName(seriesName string, metricType MetadataRW2_MetricType) (string
 	}
 }
 
-// getSeriesName finds and returns the __name__ label value from the given
-// labels.
-func getSeriesName(lbls []LabelAdapter) string {
-	for i := 0; i < len(lbls); i += 2 {
-		if lbls[i].Name == labels.MetricName {
-			return lbls[i].Value
-		}
-	}
-	return ""
-}
-
 func (p *WriteRequest) ClearTimeseriesUnmarshalData() {
 	for idx := range p.Timeseries {
 		p.Timeseries[idx].clearUnmarshalData()