Merge pull request #2327 from prometheus/beorn7/vendoring
vendoring: Update prometheus/common to pull in bug fixes
This commit is contained in:
commit
6ce97837ab
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@ -31,6 +31,7 @@ type Decoder interface {
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Decode(*dto.MetricFamily) error
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}
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// DecodeOptions contains options used by the Decoder and in sample extraction.
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type DecodeOptions struct {
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// Timestamp is added to each value from the stream that has no explicit timestamp set.
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Timestamp model.Time
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@ -142,6 +143,8 @@ func (d *textDecoder) Decode(v *dto.MetricFamily) error {
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return nil
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}
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// SampleDecoder wraps a Decoder to extract samples from the metric families
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// decoded by the wrapped Decoder.
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type SampleDecoder struct {
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Dec Decoder
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Opts *DecodeOptions
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@ -149,37 +152,51 @@ type SampleDecoder struct {
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f dto.MetricFamily
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}
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// Decode calls the Decode method of the wrapped Decoder and then extracts the
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// samples from the decoded MetricFamily into the provided model.Vector.
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func (sd *SampleDecoder) Decode(s *model.Vector) error {
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if err := sd.Dec.Decode(&sd.f); err != nil {
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err := sd.Dec.Decode(&sd.f)
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if err != nil {
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return err
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}
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*s = extractSamples(&sd.f, sd.Opts)
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return nil
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*s, err = extractSamples(&sd.f, sd.Opts)
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return err
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}
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// Extract samples builds a slice of samples from the provided metric families.
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func ExtractSamples(o *DecodeOptions, fams ...*dto.MetricFamily) model.Vector {
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var all model.Vector
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// ExtractSamples builds a slice of samples from the provided metric
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// families. If an error occurs during sample extraction, it continues to
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// extract from the remaining metric families. The returned error is the last
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// error that has occured.
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func ExtractSamples(o *DecodeOptions, fams ...*dto.MetricFamily) (model.Vector, error) {
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var (
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all model.Vector
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lastErr error
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)
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for _, f := range fams {
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all = append(all, extractSamples(f, o)...)
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some, err := extractSamples(f, o)
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if err != nil {
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lastErr = err
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continue
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}
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all = append(all, some...)
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}
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return all
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return all, lastErr
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}
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func extractSamples(f *dto.MetricFamily, o *DecodeOptions) model.Vector {
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func extractSamples(f *dto.MetricFamily, o *DecodeOptions) (model.Vector, error) {
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switch f.GetType() {
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case dto.MetricType_COUNTER:
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return extractCounter(o, f)
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return extractCounter(o, f), nil
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case dto.MetricType_GAUGE:
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return extractGauge(o, f)
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return extractGauge(o, f), nil
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case dto.MetricType_SUMMARY:
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return extractSummary(o, f)
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return extractSummary(o, f), nil
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case dto.MetricType_UNTYPED:
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return extractUntyped(o, f)
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return extractUntyped(o, f), nil
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case dto.MetricType_HISTOGRAM:
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return extractHistogram(o, f)
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return extractHistogram(o, f), nil
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}
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panic("expfmt.extractSamples: unknown metric family type")
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return nil, fmt.Errorf("expfmt.extractSamples: unknown metric family type %v", f.GetType())
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}
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func extractCounter(o *DecodeOptions, f *dto.MetricFamily) model.Vector {
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@ -11,14 +11,15 @@
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// A package for reading and writing Prometheus metrics.
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// Package expfmt contains tools for reading and writing Prometheus metrics.
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package expfmt
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// Format specifies the HTTP content type of the different wire protocols.
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type Format string
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// Constants to assemble the Content-Type values for the different wire protocols.
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const (
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TextVersion = "0.0.4"
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TextVersion = "0.0.4"
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ProtoType = `application/vnd.google.protobuf`
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ProtoProtocol = `io.prometheus.client.MetricFamily`
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ProtoFmt = ProtoType + "; proto=" + ProtoProtocol + ";"
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@ -23,6 +23,8 @@ import (
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"github.com/Sirupsen/logrus"
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)
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var _ logrus.Formatter = (*syslogger)(nil)
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func init() {
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setSyslogFormatter = func(appname, local string) error {
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if appname == "" {
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@ -43,7 +45,7 @@ func init() {
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}
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}
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var ceeTag = []byte("@cee:")
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var prefixTag []byte
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type syslogger struct {
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wrap logrus.Formatter
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@ -56,6 +58,11 @@ func newSyslogger(appname string, facility string, fmter logrus.Formatter) (*sys
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return nil, err
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}
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out, err := syslog.New(priority, appname)
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_, isJSON := fmter.(*logrus.JSONFormatter)
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if isJSON {
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// add cee tag to json formatted syslogs
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prefixTag = []byte("@cee:")
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}
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return &syslogger{
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out: out,
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wrap: fmter,
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@ -92,7 +99,7 @@ func (s *syslogger) Format(e *logrus.Entry) ([]byte, error) {
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}
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// only append tag to data sent to syslog (line), not to what
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// is returned
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line := string(append(ceeTag, data...))
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line := string(append(prefixTag, data...))
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switch e.Level {
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case logrus.PanicLevel:
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@ -80,14 +80,18 @@ const (
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QuantileLabel = "quantile"
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)
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// LabelNameRE is a regular expression matching valid label names.
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// LabelNameRE is a regular expression matching valid label names. Note that the
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// IsValid method of LabelName performs the same check but faster than a match
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// with this regular expression.
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var LabelNameRE = regexp.MustCompile("^[a-zA-Z_][a-zA-Z0-9_]*$")
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// A LabelName is a key for a LabelSet or Metric. It has a value associated
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// therewith.
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type LabelName string
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// IsValid is true iff the label name matches the pattern of LabelNameRE.
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// IsValid is true iff the label name matches the pattern of LabelNameRE. This
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// method, however, does not use LabelNameRE for the check but a much faster
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// hardcoded implementation.
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func (ln LabelName) IsValid() bool {
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if len(ln) == 0 {
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return false
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@ -106,7 +110,7 @@ func (ln *LabelName) UnmarshalYAML(unmarshal func(interface{}) error) error {
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if err := unmarshal(&s); err != nil {
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return err
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}
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if !LabelNameRE.MatchString(s) {
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if !LabelName(s).IsValid() {
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return fmt.Errorf("%q is not a valid label name", s)
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}
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*ln = LabelName(s)
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@ -119,7 +123,7 @@ func (ln *LabelName) UnmarshalJSON(b []byte) error {
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if err := json.Unmarshal(b, &s); err != nil {
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return err
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}
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if !LabelNameRE.MatchString(s) {
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if !LabelName(s).IsValid() {
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return fmt.Errorf("%q is not a valid label name", s)
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}
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*ln = LabelName(s)
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@ -160,7 +160,7 @@ func (l *LabelSet) UnmarshalJSON(b []byte) error {
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// LabelName as a string and does not call its UnmarshalJSON method.
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// Thus, we have to replicate the behavior here.
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for ln := range m {
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if !LabelNameRE.MatchString(string(ln)) {
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if !ln.IsValid() {
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return fmt.Errorf("%q is not a valid label name", ln)
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}
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}
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@ -21,8 +21,11 @@ import (
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)
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var (
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separator = []byte{0}
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MetricNameRE = regexp.MustCompile(`^[a-zA-Z_][a-zA-Z0-9_:]*$`)
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separator = []byte{0}
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// MetricNameRE is a regular expression matching valid metric
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// names. Note that the IsValidMetricName function performs the same
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// check but faster than a match with this regular expression.
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MetricNameRE = regexp.MustCompile(`^[a-zA-Z_:][a-zA-Z0-9_:]*$`)
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)
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// A Metric is similar to a LabelSet, but the key difference is that a Metric is
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@ -41,7 +44,7 @@ func (m Metric) Before(o Metric) bool {
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// Clone returns a copy of the Metric.
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func (m Metric) Clone() Metric {
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clone := Metric{}
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clone := make(Metric, len(m))
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for k, v := range m {
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clone[k] = v
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}
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@ -85,6 +88,8 @@ func (m Metric) FastFingerprint() Fingerprint {
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}
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// IsValidMetricName returns true iff name matches the pattern of MetricNameRE.
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// This function, however, does not use MetricNameRE for the check but a much
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// faster hardcoded implementation.
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func IsValidMetricName(n LabelValue) bool {
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if len(n) == 0 {
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return false
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@ -33,18 +33,19 @@ func WithParam(ctx context.Context, p, v string) context.Context {
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return context.WithValue(ctx, param(p), v)
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}
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type contextFn func(r *http.Request) (context.Context, error)
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// ContextFunc returns a new context for a request.
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type ContextFunc func(r *http.Request) (context.Context, error)
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// Router wraps httprouter.Router and adds support for prefixed sub-routers
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// and per-request context injections.
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type Router struct {
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rtr *httprouter.Router
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prefix string
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ctxFn contextFn
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ctxFn ContextFunc
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}
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// New returns a new Router.
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func New(ctxFn contextFn) *Router {
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func New(ctxFn ContextFunc) *Router {
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if ctxFn == nil {
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ctxFn = func(r *http.Request) (context.Context, error) {
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return context.Background(), nil
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@ -540,40 +540,40 @@
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"revisionTime": "2015-02-12T10:17:44Z"
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},
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{
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"checksumSHA1": "mHyjbJ3BWOfUV6q9f5PBt0gaY1k=",
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"checksumSHA1": "jG8qYuDUuaZeflt4JxBBdyQBsXw=",
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"path": "github.com/prometheus/common/expfmt",
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"revision": "85637ea67b04b5c3bb25e671dacded2977f8f9f6",
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"revisionTime": "2016-10-02T21:02:34Z"
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"revision": "dd2f054febf4a6c00f2343686efb775948a8bff4",
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"revisionTime": "2017-01-08T23:12:12Z"
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},
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{
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"checksumSHA1": "GWlM3d2vPYyNATtTFgftS10/A9w=",
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"path": "github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg",
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"revision": "85637ea67b04b5c3bb25e671dacded2977f8f9f6",
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"revisionTime": "2016-10-02T21:02:34Z"
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"revision": "dd2f054febf4a6c00f2343686efb775948a8bff4",
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"revisionTime": "2017-01-08T23:12:12Z"
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},
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{
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"checksumSHA1": "UU6hIfhVjnAYDADQEfE/3T7Ddm8=",
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"checksumSHA1": "ZA4MLHNAP905WiAOLy4BBzmcuxM=",
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"path": "github.com/prometheus/common/log",
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"revision": "85637ea67b04b5c3bb25e671dacded2977f8f9f6",
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"revisionTime": "2016-10-02T21:02:34Z"
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"revision": "dd2f054febf4a6c00f2343686efb775948a8bff4",
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"revisionTime": "2017-01-08T23:12:12Z"
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},
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{
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"checksumSHA1": "nFie+rxcX5WdIv1diZ+fu3aj6lE=",
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"checksumSHA1": "vopCLXHzYm+3l5fPKOf4/fQwrCM=",
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"path": "github.com/prometheus/common/model",
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"revision": "85637ea67b04b5c3bb25e671dacded2977f8f9f6",
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"revisionTime": "2016-10-02T21:02:34Z"
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"revision": "dd2f054febf4a6c00f2343686efb775948a8bff4",
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"revisionTime": "2017-01-08T23:12:12Z"
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},
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{
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"checksumSHA1": "QQKJYoGcY10nIHxhBEHwjwUZQzk=",
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"checksumSHA1": "ZbbESWBHHcPUJ/A5yrzKhTHuPc8=",
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"path": "github.com/prometheus/common/route",
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"revision": "85637ea67b04b5c3bb25e671dacded2977f8f9f6",
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"revisionTime": "2016-10-02T21:02:34Z"
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"revision": "dd2f054febf4a6c00f2343686efb775948a8bff4",
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"revisionTime": "2017-01-08T23:12:12Z"
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},
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{
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"checksumSHA1": "91KYK0SpvkaMJJA2+BcxbVnyRO0=",
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"path": "github.com/prometheus/common/version",
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"revision": "85637ea67b04b5c3bb25e671dacded2977f8f9f6",
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"revisionTime": "2016-10-02T21:02:34Z"
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"revision": "dd2f054febf4a6c00f2343686efb775948a8bff4",
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"revisionTime": "2017-01-08T23:12:12Z"
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},
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{
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"checksumSHA1": "W218eJZPXJG783fUr/z6IaAZyes=",
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