Merge pull request #44 from prometheus/fish/use-version-package

Use common/version and common/log packages

.promu.yml

@@ -4,7 +4,11 @@ repository:
 build:
     flags: -a -tags 'netgo static_build'
     ldflags: |
-        -X main.Version={{.Version}}
+        -X {{repoPath}}/vendor/github.com/prometheus/common/version.Version={{.Version}}
+        -X {{repoPath}}/vendor/github.com/prometheus/common/version.Revision={{.Revision}}
+        -X {{repoPath}}/vendor/github.com/prometheus/common/version.Branch={{.Branch}}
+        -X {{repoPath}}/vendor/github.com/prometheus/common/version.BuildUser={{user}}@{{host}}
+        -X {{repoPath}}/vendor/github.com/prometheus/common/version.BuildDate={{date "20060102-15:04:05"}}
 
 tarball:
     files:

exporter.go

@@ -24,8 +24,8 @@ import (
 	"strings"
 
 	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/common/log"
 	"github.com/prometheus/common/model"
-	"github.com/prometheus/log"
 )
 
 const (
@@ -238,7 +238,7 @@ func (b *Exporter) Listen(e <-chan Events) {
 				// We don't accept negative values for counters. Incrementing the counter with a negative number
 				// will cause the exporter to panic. Instead we will warn and continue to the next event.
 				if event.Value() < 0.0 {
-					log.Warnf("Counter %q is: '%f' (counter must be non-negative value)", metricName, event.Value())
+					log.Errorf("Counter %q is: '%f' (counter must be non-negative value)", metricName, event.Value())
 					continue
 				}
 
@@ -265,7 +265,7 @@ func (b *Exporter) Listen(e <-chan Events) {
 				eventStats.WithLabelValues("timer").Inc()
 
 			default:
-				log.Println("Unsupported event type")
+				log.Errorln("Unsupported event type")
 				eventStats.WithLabelValues("illegal").Inc()
 			}
 		}
@@ -334,7 +334,7 @@ func parseDogStatsDTagsToLabels(component string) map[string]string {
 
 		if len(kv) < 2 || len(kv[1]) == 0 {
 			networkStats.WithLabelValues("malformed_dogstatsd_tag").Inc()
-			log.Printf("Malformed or empty DogStatsD tag %s in component %s", t, component)
+			log.Errorf("Malformed or empty DogStatsD tag %s in component %s", t, component)
 			continue
 		}
 
@@ -354,7 +354,7 @@ func (l *StatsDListener) handlePacket(packet []byte, e chan<- Events) {
 		elements := strings.SplitN(line, ":", 2)
 		if len(elements) < 2 {
 			networkStats.WithLabelValues("malformed_line").Inc()
-			log.Println("Bad line from StatsD:", line)
+			log.Errorln("Bad line from StatsD:", line)
 			continue
 		}
 		metric := elements[0]
@@ -370,13 +370,13 @@ func (l *StatsDListener) handlePacket(packet []byte, e chan<- Events) {
 			samplingFactor := 1.0
 			if len(components) < 2 || len(components) > 4 {
 				networkStats.WithLabelValues("malformed_component").Inc()
-				log.Println("Bad component on line:", line)
+				log.Errorln("Bad component on line:", line)
 				continue
 			}
 			valueStr, statType := components[0], components[1]
 			value, err := strconv.ParseFloat(valueStr, 64)
 			if err != nil {
-				log.Printf("Bad value %s on line: %s", valueStr, line)
+				log.Errorf("Bad value %s on line: %s", valueStr, line)
 				networkStats.WithLabelValues("malformed_value").Inc()
 				continue
 			}
@@ -387,12 +387,12 @@ func (l *StatsDListener) handlePacket(packet []byte, e chan<- Events) {
 					switch component[0] {
 					case '@':
 						if statType != "c" {
-							log.Println("Illegal sampling factor for non-counter metric on line", line)
+							log.Errorln("Illegal sampling factor for non-counter metric on line", line)
 							networkStats.WithLabelValues("illegal_sample_factor").Inc()
 						}
 						samplingFactor, err = strconv.ParseFloat(component[1:], 64)
 						if err != nil {
-							log.Printf("Invalid sampling factor %s on line %s", component[1:], line)
+							log.Errorf("Invalid sampling factor %s on line %s", component[1:], line)
 							networkStats.WithLabelValues("invalid_sample_factor").Inc()
 						}
 						if samplingFactor == 0 {
@@ -402,7 +402,7 @@ func (l *StatsDListener) handlePacket(packet []byte, e chan<- Events) {
 					case '#':
 						labels = parseDogStatsDTagsToLabels(component)
 					default:
-						log.Printf("Invalid sampling factor or tag section %s on line %s", components[2], line)
+						log.Errorf("Invalid sampling factor or tag section %s on line %s", components[2], line)
 						networkStats.WithLabelValues("invalid_sample_factor").Inc()
 						continue
 					}
@@ -411,7 +411,7 @@ func (l *StatsDListener) handlePacket(packet []byte, e chan<- Events) {
 
 			event, err := buildEvent(statType, metric, value, labels)
 			if err != nil {
-				log.Printf("Error building event on line %s: %s", line, err)
+				log.Errorf("Error building event on line %s: %s", line, err)
 				networkStats.WithLabelValues("illegal_event").Inc()
 				continue
 			}

main.go

@@ -15,25 +15,30 @@ package main
 
 import (
 	"flag"
+	"fmt"
 	"net"
 	"net/http"
+	"os"
 	"strconv"
 
 	"github.com/howeyc/fsnotify"
 	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/log"
+	"github.com/prometheus/common/log"
+	"github.com/prometheus/common/version"
 )
 
-var (
+func init() {
-	// Version of statsd_exporter. Set at build time.
+	prometheus.MustRegister(version.NewCollector("statsd_exporter"))
-	Version = "0.0.0.dev"
+}
 
+var (
 	listenAddress       = flag.String("web.listen-address", ":9102", "The address on which to expose the web interface and generated Prometheus metrics.")
 	metricsEndpoint     = flag.String("web.telemetry-path", "/metrics", "Path under which to expose metrics.")
 	statsdListenAddress = flag.String("statsd.listen-address", ":9125", "The UDP address on which to receive statsd metric lines.")
 	mappingConfig       = flag.String("statsd.mapping-config", "", "Metric mapping configuration file name.")
 	readBuffer          = flag.Int("statsd.read-buffer", 0, "Size (in bytes) of the operating system's transmit read buffer associated with the UDP connection. Please make sure the kernel parameters net.core.rmem_max is set to a value greater than the value specified.")
 	addSuffix           = flag.Bool("statsd.add-suffix", true, "Add the metric type (counter/gauge/timer) as suffix to the generated Prometheus metric (NOT recommended, but set by default for backward compatibility).")
+	showVersion         = flag.Bool("version", false, "Print version information.")
 )
 
 func serveHTTP() {
@@ -90,13 +95,13 @@ func watchConfig(fileName string, mapper *metricMapper) {
 	for {
 		select {
 		case ev := <-watcher.Event:
-			log.Printf("Config file changed (%s), attempting reload", ev)
+			log.Infof("Config file changed (%s), attempting reload", ev)
 			err = mapper.initFromFile(fileName)
 			if err != nil {
-				log.Println("Error reloading config:", err)
+				log.Errorln("Error reloading config:", err)
 				configLoads.WithLabelValues("failure").Inc()
 			} else {
-				log.Println("Config reloaded successfully")
+				log.Infoln("Config reloaded successfully")
 				configLoads.WithLabelValues("success").Inc()
 			}
 			// Re-add the file watcher since it can get lost on some changes. E.g.
@@ -104,7 +109,7 @@ func watchConfig(fileName string, mapper *metricMapper) {
 			// sequence, after which the newly written file is no longer watched.
 			err = watcher.WatchFlags(fileName, fsnotify.FSN_MODIFY)
 		case err := <-watcher.Error:
-			log.Println("Error watching config:", err)
+			log.Errorln("Error watching config:", err)
 		}
 	}
 }
@@ -112,12 +117,18 @@ func watchConfig(fileName string, mapper *metricMapper) {
 func main() {
 	flag.Parse()
 
-	if *addSuffix {
+	if *showVersion {
-		log.Println("Warning: Using -statsd.add-suffix is discouraged. We recommend explicitly naming metrics appropriately in the mapping configuration.")
+		fmt.Fprintln(os.Stdout, version.Print("statsd_exporter"))
+		os.Exit(0)
 	}
-	log.Printf("Starting StatsD -> Prometheus Exporter v%s...", Version)
+
-	log.Println("Accepting StatsD Traffic on", *statsdListenAddress)
+	if *addSuffix {
-	log.Println("Accepting Prometheus Requests on", *listenAddress)
+		log.Warnln("Warning: Using -statsd.add-suffix is discouraged. We recommend explicitly naming metrics appropriately in the mapping configuration.")
+	}
+	log.Infoln("Starting StatsD -> Prometheus Exporter", version.Info())
+	log.Infoln("Build context", version.BuildContext())
+	log.Infoln("Accepting StatsD Traffic on", *statsdListenAddress)
+	log.Infoln("Accepting Prometheus Requests on", *listenAddress)
 
 	go serveHTTP()
 

vendor/github.com/prometheus/common/log/log.go

@@ -0,0 +1,304 @@
+// Copyright 2015 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package log
+
+import (
+	"flag"
+	"fmt"
+	"net/url"
+	"os"
+	"runtime"
+	"strings"
+
+	"github.com/Sirupsen/logrus"
+)
+
+type levelFlag struct{}
+
+// String implements flag.Value.
+func (f levelFlag) String() string {
+	return origLogger.Level.String()
+}
+
+// Set implements flag.Value.
+func (f levelFlag) Set(level string) error {
+	l, err := logrus.ParseLevel(level)
+	if err != nil {
+		return err
+	}
+	origLogger.Level = l
+	return nil
+}
+
+// setSyslogFormatter is nil if the target architecture does not support syslog.
+var setSyslogFormatter func(string, string) error
+
+func setJSONFormatter() {
+	origLogger.Formatter = &logrus.JSONFormatter{}
+}
+
+type logFormatFlag struct{ uri string }
+
+// String implements flag.Value.
+func (f logFormatFlag) String() string {
+	return f.uri
+}
+
+// Set implements flag.Value.
+func (f logFormatFlag) Set(format string) error {
+	f.uri = format
+	u, err := url.Parse(format)
+	if err != nil {
+		return err
+	}
+	if u.Scheme != "logger" {
+		return fmt.Errorf("invalid scheme %s", u.Scheme)
+	}
+	jsonq := u.Query().Get("json")
+	if jsonq == "true" {
+		setJSONFormatter()
+	}
+
+	switch u.Opaque {
+	case "syslog":
+		if setSyslogFormatter == nil {
+			return fmt.Errorf("system does not support syslog")
+		}
+		appname := u.Query().Get("appname")
+		facility := u.Query().Get("local")
+		return setSyslogFormatter(appname, facility)
+	case "stdout":
+		origLogger.Out = os.Stdout
+	case "stderr":
+		origLogger.Out = os.Stderr
+
+	default:
+		return fmt.Errorf("unsupported logger %s", u.Opaque)
+	}
+	return nil
+}
+
+func init() {
+	// In order for these flags to take effect, the user of the package must call
+	// flag.Parse() before logging anything.
+	flag.Var(levelFlag{}, "log.level", "Only log messages with the given severity or above. Valid levels: [debug, info, warn, error, fatal].")
+	flag.Var(logFormatFlag{}, "log.format", "If set use a syslog logger or JSON logging. Example: logger:syslog?appname=bob&local=7 or logger:stdout?json=true. Defaults to stderr.")
+}
+
+type Logger interface {
+	Debug(...interface{})
+	Debugln(...interface{})
+	Debugf(string, ...interface{})
+
+	Info(...interface{})
+	Infoln(...interface{})
+	Infof(string, ...interface{})
+
+	Warn(...interface{})
+	Warnln(...interface{})
+	Warnf(string, ...interface{})
+
+	Error(...interface{})
+	Errorln(...interface{})
+	Errorf(string, ...interface{})
+
+	Fatal(...interface{})
+	Fatalln(...interface{})
+	Fatalf(string, ...interface{})
+
+	With(key string, value interface{}) Logger
+}
+
+type logger struct {
+	entry *logrus.Entry
+}
+
+func (l logger) With(key string, value interface{}) Logger {
+	return logger{l.entry.WithField(key, value)}
+}
+
+// Debug logs a message at level Debug on the standard logger.
+func (l logger) Debug(args ...interface{}) {
+	l.sourced().Debug(args...)
+}
+
+// Debug logs a message at level Debug on the standard logger.
+func (l logger) Debugln(args ...interface{}) {
+	l.sourced().Debugln(args...)
+}
+
+// Debugf logs a message at level Debug on the standard logger.
+func (l logger) Debugf(format string, args ...interface{}) {
+	l.sourced().Debugf(format, args...)
+}
+
+// Info logs a message at level Info on the standard logger.
+func (l logger) Info(args ...interface{}) {
+	l.sourced().Info(args...)
+}
+
+// Info logs a message at level Info on the standard logger.
+func (l logger) Infoln(args ...interface{}) {
+	l.sourced().Infoln(args...)
+}
+
+// Infof logs a message at level Info on the standard logger.
+func (l logger) Infof(format string, args ...interface{}) {
+	l.sourced().Infof(format, args...)
+}
+
+// Warn logs a message at level Warn on the standard logger.
+func (l logger) Warn(args ...interface{}) {
+	l.sourced().Warn(args...)
+}
+
+// Warn logs a message at level Warn on the standard logger.
+func (l logger) Warnln(args ...interface{}) {
+	l.sourced().Warnln(args...)
+}
+
+// Warnf logs a message at level Warn on the standard logger.
+func (l logger) Warnf(format string, args ...interface{}) {
+	l.sourced().Warnf(format, args...)
+}
+
+// Error logs a message at level Error on the standard logger.
+func (l logger) Error(args ...interface{}) {
+	l.sourced().Error(args...)
+}
+
+// Error logs a message at level Error on the standard logger.
+func (l logger) Errorln(args ...interface{}) {
+	l.sourced().Errorln(args...)
+}
+
+// Errorf logs a message at level Error on the standard logger.
+func (l logger) Errorf(format string, args ...interface{}) {
+	l.sourced().Errorf(format, args...)
+}
+
+// Fatal logs a message at level Fatal on the standard logger.
+func (l logger) Fatal(args ...interface{}) {
+	l.sourced().Fatal(args...)
+}
+
+// Fatal logs a message at level Fatal on the standard logger.
+func (l logger) Fatalln(args ...interface{}) {
+	l.sourced().Fatalln(args...)
+}
+
+// Fatalf logs a message at level Fatal on the standard logger.
+func (l logger) Fatalf(format string, args ...interface{}) {
+	l.sourced().Fatalf(format, args...)
+}
+
+// sourced adds a source field to the logger that contains
+// the file name and line where the logging happened.
+func (l logger) sourced() *logrus.Entry {
+	_, file, line, ok := runtime.Caller(2)
+	if !ok {
+		file = "<???>"
+		line = 1
+	} else {
+		slash := strings.LastIndex(file, "/")
+		file = file[slash+1:]
+	}
+	return l.entry.WithField("source", fmt.Sprintf("%s:%d", file, line))
+}
+
+var origLogger = logrus.New()
+var baseLogger = logger{entry: logrus.NewEntry(origLogger)}
+
+func Base() Logger {
+	return baseLogger
+}
+
+func With(key string, value interface{}) Logger {
+	return baseLogger.With(key, value)
+}
+
+// Debug logs a message at level Debug on the standard logger.
+func Debug(args ...interface{}) {
+	baseLogger.sourced().Debug(args...)
+}
+
+// Debug logs a message at level Debug on the standard logger.
+func Debugln(args ...interface{}) {
+	baseLogger.sourced().Debugln(args...)
+}
+
+// Debugf logs a message at level Debug on the standard logger.
+func Debugf(format string, args ...interface{}) {
+	baseLogger.sourced().Debugf(format, args...)
+}
+
+// Info logs a message at level Info on the standard logger.
+func Info(args ...interface{}) {
+	baseLogger.sourced().Info(args...)
+}
+
+// Info logs a message at level Info on the standard logger.
+func Infoln(args ...interface{}) {
+	baseLogger.sourced().Infoln(args...)
+}
+
+// Infof logs a message at level Info on the standard logger.
+func Infof(format string, args ...interface{}) {
+	baseLogger.sourced().Infof(format, args...)
+}
+
+// Warn logs a message at level Warn on the standard logger.
+func Warn(args ...interface{}) {
+	baseLogger.sourced().Warn(args...)
+}
+
+// Warn logs a message at level Warn on the standard logger.
+func Warnln(args ...interface{}) {
+	baseLogger.sourced().Warnln(args...)
+}
+
+// Warnf logs a message at level Warn on the standard logger.
+func Warnf(format string, args ...interface{}) {
+	baseLogger.sourced().Warnf(format, args...)
+}
+
+// Error logs a message at level Error on the standard logger.
+func Error(args ...interface{}) {
+	baseLogger.sourced().Error(args...)
+}
+
+// Error logs a message at level Error on the standard logger.
+func Errorln(args ...interface{}) {
+	baseLogger.sourced().Errorln(args...)
+}
+
+// Errorf logs a message at level Error on the standard logger.
+func Errorf(format string, args ...interface{}) {
+	baseLogger.sourced().Errorf(format, args...)
+}
+
+// Fatal logs a message at level Fatal on the standard logger.
+func Fatal(args ...interface{}) {
+	baseLogger.sourced().Fatal(args...)
+}
+
+// Fatal logs a message at level Fatal on the standard logger.
+func Fatalln(args ...interface{}) {
+	baseLogger.sourced().Fatalln(args...)
+}
+
+// Fatalf logs a message at level Fatal on the standard logger.
+func Fatalf(format string, args ...interface{}) {
+	baseLogger.sourced().Fatalf(format, args...)
+}

vendor/github.com/prometheus/common/log/syslog_formatter.go

@@ -0,0 +1,119 @@
+// Copyright 2015 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build !windows,!nacl,!plan9
+
+package log
+
+import (
+	"fmt"
+	"log/syslog"
+	"os"
+
+	"github.com/Sirupsen/logrus"
+)
+
+func init() {
+	setSyslogFormatter = func(appname, local string) error {
+		if appname == "" {
+			return fmt.Errorf("missing appname parameter")
+		}
+		if local == "" {
+			return fmt.Errorf("missing local parameter")
+		}
+
+		fmter, err := newSyslogger(appname, local, origLogger.Formatter)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "error creating syslog formatter: %v\n", err)
+			origLogger.Errorf("can't connect logger to syslog: %v", err)
+			return err
+		}
+		origLogger.Formatter = fmter
+		return nil
+	}
+}
+
+var ceeTag = []byte("@cee:")
+
+type syslogger struct {
+	wrap logrus.Formatter
+	out  *syslog.Writer
+}
+
+func newSyslogger(appname string, facility string, fmter logrus.Formatter) (*syslogger, error) {
+	priority, err := getFacility(facility)
+	if err != nil {
+		return nil, err
+	}
+	out, err := syslog.New(priority, appname)
+	return &syslogger{
+		out:  out,
+		wrap: fmter,
+	}, err
+}
+
+func getFacility(facility string) (syslog.Priority, error) {
+	switch facility {
+	case "0":
+		return syslog.LOG_LOCAL0, nil
+	case "1":
+		return syslog.LOG_LOCAL1, nil
+	case "2":
+		return syslog.LOG_LOCAL2, nil
+	case "3":
+		return syslog.LOG_LOCAL3, nil
+	case "4":
+		return syslog.LOG_LOCAL4, nil
+	case "5":
+		return syslog.LOG_LOCAL5, nil
+	case "6":
+		return syslog.LOG_LOCAL6, nil
+	case "7":
+		return syslog.LOG_LOCAL7, nil
+	}
+	return syslog.LOG_LOCAL0, fmt.Errorf("invalid local(%s) for syslog", facility)
+}
+
+func (s *syslogger) Format(e *logrus.Entry) ([]byte, error) {
+	data, err := s.wrap.Format(e)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "syslogger: can't format entry: %v\n", err)
+		return data, err
+	}
+	// only append tag to data sent to syslog (line), not to what
+	// is returned
+	line := string(append(ceeTag, data...))
+
+	switch e.Level {
+	case logrus.PanicLevel:
+		err = s.out.Crit(line)
+	case logrus.FatalLevel:
+		err = s.out.Crit(line)
+	case logrus.ErrorLevel:
+		err = s.out.Err(line)
+	case logrus.WarnLevel:
+		err = s.out.Warning(line)
+	case logrus.InfoLevel:
+		err = s.out.Info(line)
+	case logrus.DebugLevel:
+		err = s.out.Debug(line)
+	default:
+		err = s.out.Notice(line)
+	}
+
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "syslogger: can't send log to syslog: %v\n", err)
+	}
+
+	return data, err
+}

vendor/github.com/prometheus/common/version/info.go

@@ -0,0 +1,89 @@
+// Copyright 2016 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package version
+
+import (
+	"bytes"
+	"fmt"
+	"runtime"
+	"strings"
+	"text/template"
+
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+// Build information. Populated at build-time.
+var (
+	Version   string
+	Revision  string
+	Branch    string
+	BuildUser string
+	BuildDate string
+	GoVersion = runtime.Version()
+)
+
+// NewCollector returns a collector which exports metrics about current version information.
+func NewCollector(program string) *prometheus.GaugeVec {
+	buildInfo := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: program,
+			Name:      "build_info",
+			Help: fmt.Sprintf(
+				"A metric with a constant '1' value labeled by version, revision, branch, and goversion from which %s was built.",
+				program,
+			),
+		},
+		[]string{"version", "revision", "branch", "goversion"},
+	)
+	buildInfo.WithLabelValues(Version, Revision, Branch, GoVersion).Set(1)
+	return buildInfo
+}
+
+// versionInfoTmpl contains the template used by Info.
+var versionInfoTmpl = `
+{{.program}}, version {{.version}} (branch: {{.branch}}, revision: {{.revision}})
+  build user:       {{.buildUser}}
+  build date:       {{.buildDate}}
+  go version:       {{.goVersion}}
+`
+
+// Print returns version information.
+func Print(program string) string {
+	m := map[string]string{
+		"program":   program,
+		"version":   Version,
+		"revision":  Revision,
+		"branch":    Branch,
+		"buildUser": BuildUser,
+		"buildDate": BuildDate,
+		"goVersion": GoVersion,
+	}
+	t := template.Must(template.New("version").Parse(versionInfoTmpl))
+
+	var buf bytes.Buffer
+	if err := t.ExecuteTemplate(&buf, "version", m); err != nil {
+		panic(err)
+	}
+	return strings.TrimSpace(buf.String())
+}
+
+// Info returns version, branch and revision information.
+func Info() string {
+	return fmt.Sprintf("(version=%s, branch=%s, revision=%s)", Version, Branch, Revision)
+}
+
+// BuildContext returns goVersion, buildUser and buildDate information.
+func BuildContext() string {
+	return fmt.Sprintf("(go=%s, user=%s, date=%s)", GoVersion, BuildUser, BuildDate)
+}

vendor/github.com/prometheus/log/AUTHORS.md

@@ -1,11 +0,0 @@
-The Prometheus project was started by Matt T. Proud (emeritus) and
-Julius Volz in 2012.
-
-Maintainers of this repository:
-
-* Julius Volz <julius.volz@gmail.com>
-
-The following individuals have contributed code to this repository
-(listed in alphabetical order):
-
-* Julius Volz <julius.volz@gmail.com>

vendor/github.com/prometheus/log/CONTRIBUTING.md

@@ -1,18 +0,0 @@
-# Contributing
-
-Prometheus uses GitHub to manage reviews of pull requests.
-
-* If you have a trivial fix or improvement, go ahead and create a pull
-  request, addressing (with `@...`) one or more of the maintainers
-  (see [AUTHORS.md](AUTHORS.md)) in the description of the pull request.
-
-* If you plan to do something more involved, first discuss your ideas
-  on our [mailing list](https://groups.google.com/forum/?fromgroups#!forum/prometheus-developers).
-  This will avoid unnecessary work and surely give you and us a good deal
-  of inspiration.
-
-* Relevant coding style guidelines are the [Go Code Review
-  Comments](https://code.google.com/p/go-wiki/wiki/CodeReviewComments)
-  and the _Formatting and style_ section of Peter Bourgon's [Go: Best
-  Practices for Production
-  Environments](http://peter.bourgon.org/go-in-production/#formatting-and-style).

vendor/github.com/prometheus/log/LICENSE

@@ -1,201 +0,0 @@
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
-
-      "Object" form shall mean any form resulting from mechanical
-      transformation or translation of a Source form, including but
-      not limited to compiled object code, generated documentation,
-      and conversions to other media types.
-
-      "Work" shall mean the work of authorship, whether in Source or
-      Object form, made available under the License, as indicated by a
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-      form, that is based on (or derived from) the Work and for which the
-      editorial revisions, annotations, elaborations, or other modifications
-      represent, as a whole, an original work of authorship. For the purposes
-      of this License, Derivative Works shall not include works that remain
-      separable from, or merely link (or bind by name) to the interfaces of,
-      the Work and Derivative Works thereof.
-
-      "Contribution" shall mean any work of authorship, including
-      the original version of the Work and any modifications or additions
-      to that Work or Derivative Works thereof, that is intentionally
-      submitted to Licensor for inclusion in the Work by the copyright owner
-      or by an individual or Legal Entity authorized to submit on behalf of
-      the copyright owner. For the purposes of this definition, "submitted"
-      means any form of electronic, verbal, or written communication sent
-      to the Licensor or its representatives, including but not limited to
-      communication on electronic mailing lists, source code control systems,
-      and issue tracking systems that are managed by, or on behalf of, the
-      Licensor for the purpose of discussing and improving the Work, but
-      excluding communication that is conspicuously marked or otherwise
-      designated in writing by the copyright owner as "Not a Contribution."
-
-      "Contributor" shall mean Licensor and any individual or Legal Entity
-      on behalf of whom a Contribution has been received by Licensor and
-      subsequently incorporated within the Work.
-
-   2. Grant of Copyright License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      copyright license to reproduce, prepare Derivative Works of,
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-      Work and such Derivative Works in Source or Object form.
-
-   3. Grant of Patent License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      (except as stated in this section) patent license to make, have made,
-      use, offer to sell, sell, import, and otherwise transfer the Work,
-      where such license applies only to those patent claims licensable
-      by such Contributor that are necessarily infringed by their
-      Contribution(s) alone or by combination of their Contribution(s)
-      with the Work to which such Contribution(s) was submitted. If You
-      institute patent litigation against any entity (including a
-      cross-claim or counterclaim in a lawsuit) alleging that the Work
-      or a Contribution incorporated within the Work constitutes direct
-      or contributory patent infringement, then any patent licenses
-      granted to You under this License for that Work shall terminate
-      as of the date such litigation is filed.
-
-   4. Redistribution. You may reproduce and distribute copies of the
-      Work or Derivative Works thereof in any medium, with or without
-      modifications, and in Source or Object form, provided that You
-      meet the following conditions:
-
-      (a) You must give any other recipients of the Work or
-          Derivative Works a copy of this License; and
-
-      (b) You must cause any modified files to carry prominent notices
-          stating that You changed the files; and
-
-      (c) You must retain, in the Source form of any Derivative Works
-          that You distribute, all copyright, patent, trademark, and
-          attribution notices from the Source form of the Work,
-          excluding those notices that do not pertain to any part of
-          the Derivative Works; and
-
-      (d) If the Work includes a "NOTICE" text file as part of its
-          distribution, then any Derivative Works that You distribute must
-          include a readable copy of the attribution notices contained
-          within such NOTICE file, excluding those notices that do not
-          pertain to any part of the Derivative Works, in at least one
-          of the following places: within a NOTICE text file distributed
-          as part of the Derivative Works; within the Source form or
-          documentation, if provided along with the Derivative Works; or,
-          within a display generated by the Derivative Works, if and
-          wherever such third-party notices normally appear. The contents
-          of the NOTICE file are for informational purposes only and
-          do not modify the License. You may add Your own attribution
-          notices within Derivative Works that You distribute, alongside
-          or as an addendum to the NOTICE text from the Work, provided
-          that such additional attribution notices cannot be construed
-          as modifying the License.
-
-      You may add Your own copyright statement to Your modifications and
-      may provide additional or different license terms and conditions
-      for use, reproduction, or distribution of Your modifications, or
-      for any such Derivative Works as a whole, provided Your use,
-      reproduction, and distribution of the Work otherwise complies with
-      the conditions stated in this License.
-
-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
-
-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
-      Contributor provides its Contributions) on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-      implied, including, without limitation, any warranties or conditions
-      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
-      PARTICULAR PURPOSE. You are solely responsible for determining the
-      appropriateness of using or redistributing the Work and assume any
-      risks associated with Your exercise of permissions under this License.
-
-   8. Limitation of Liability. In no event and under no legal theory,
-      whether in tort (including negligence), contract, or otherwise,
-      unless required by applicable law (such as deliberate and grossly
-      negligent acts) or agreed to in writing, shall any Contributor be
-      liable to You for damages, including any direct, indirect, special,
-      incidental, or consequential damages of any character arising as a
-      result of this License or out of the use or inability to use the
-      Work (including but not limited to damages for loss of goodwill,
-      work stoppage, computer failure or malfunction, or any and all
-      other commercial damages or losses), even if such Contributor
-      has been advised of the possibility of such damages.
-
-   9. Accepting Warranty or Additional Liability. While redistributing
-      the Work or Derivative Works thereof, You may choose to offer,
-      and charge a fee for, acceptance of support, warranty, indemnity,
-      or other liability obligations and/or rights consistent with this
-      License. However, in accepting such obligations, You may act only
-      on Your own behalf and on Your sole responsibility, not on behalf
-      of any other Contributor, and only if You agree to indemnify,
-      defend, and hold each Contributor harmless for any liability
-      incurred by, or claims asserted against, such Contributor by reason
-      of your accepting any such warranty or additional liability.
-
-   END OF TERMS AND CONDITIONS
-
-   APPENDIX: How to apply the Apache License to your work.
-
-      To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "[]"
-      replaced with your own identifying information. (Don't include
-      the brackets!)  The text should be enclosed in the appropriate
-      comment syntax for the file format. We also recommend that a
-      file or class name and description of purpose be included on the
-      same "printed page" as the copyright notice for easier
-      identification within third-party archives.
-
-   Copyright [yyyy] [name of copyright owner]
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.

vendor/github.com/prometheus/log/NOTICE

@@ -1,2 +0,0 @@
-Standard logging library for Go-based Prometheus components.
-Copyright 2015 The Prometheus Authors

vendor/github.com/prometheus/log/README.md

@@ -1,10 +0,0 @@
-# Prometheus Logging Library
-
-**Deprecated: This repository is superseded by [common/log](https://github.com/prometheus/common/tree/master/log).**
-
-Standard logging library for Go-based Prometheus components.
-
-This library wraps
-[https://github.com/Sirupsen/logrus](https://github.com/Sirupsen/logrus) in
-order to add line:file annotations to log lines, as well as to provide common
-command-line flags for Prometheus components using it.

vendor/github.com/prometheus/log/log.go

@@ -1,171 +0,0 @@
-// Copyright 2015 The Prometheus Authors
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package log
-
-import (
-	"flag"
-	"runtime"
-	"strings"
-
-	"github.com/Sirupsen/logrus"
-)
-
-var logger = logrus.New()
-
-type levelFlag struct{}
-
-// String implements flag.Value.
-func (f levelFlag) String() string {
-	return logger.Level.String()
-}
-
-// Set implements flag.Value.
-func (f levelFlag) Set(level string) error {
-	l, err := logrus.ParseLevel(level)
-	if err != nil {
-		return err
-	}
-	logger.Level = l
-	return nil
-}
-
-func init() {
-	// In order for this flag to take effect, the user of the package must call
-	// flag.Parse() before logging anything.
-	flag.Var(levelFlag{}, "log.level", "Only log messages with the given severity or above. Valid levels: [debug, info, warn, error, fatal, panic].")
-}
-
-// fileLineEntry returns a logrus.Entry with file and line annotations for the
-// original user log statement (two stack frames up from this function).
-func fileLineEntry() *logrus.Entry {
-	_, file, line, ok := runtime.Caller(2)
-	if !ok {
-		file = "<???>"
-		line = 1
-	} else {
-		slash := strings.LastIndex(file, "/")
-		if slash >= 0 {
-			file = file[slash+1:]
-		}
-	}
-	return logger.WithFields(logrus.Fields{
-		"file": file,
-		"line": line,
-	})
-}
-
-// Debug logs a message at level Debug on the standard logger.
-func Debug(args ...interface{}) {
-	fileLineEntry().Debug(args...)
-}
-
-// Debugln logs a message at level Debug on the standard logger.
-func Debugln(args ...interface{}) {
-	fileLineEntry().Debugln(args...)
-}
-
-// Debugf logs a message at level Debug on the standard logger.
-func Debugf(format string, args ...interface{}) {
-	fileLineEntry().Debugf(format, args...)
-}
-
-// Info logs a message at level Info on the standard logger.
-func Info(args ...interface{}) {
-	fileLineEntry().Info(args...)
-}
-
-// Infoln logs a message at level Info on the standard logger.
-func Infoln(args ...interface{}) {
-	fileLineEntry().Infoln(args...)
-}
-
-// Infof logs a message at level Info on the standard logger.
-func Infof(format string, args ...interface{}) {
-	fileLineEntry().Infof(format, args...)
-}
-
-// Print logs a message at level Info on the standard logger.
-func Print(args ...interface{}) {
-	fileLineEntry().Info(args...)
-}
-
-// Println logs a message at level Info on the standard logger.
-func Println(args ...interface{}) {
-	fileLineEntry().Infoln(args...)
-}
-
-// Printf logs a message at level Info on the standard logger.
-func Printf(format string, args ...interface{}) {
-	fileLineEntry().Infof(format, args...)
-}
-
-// Warn logs a message at level Warn on the standard logger.
-func Warn(args ...interface{}) {
-	fileLineEntry().Warn(args...)
-}
-
-// Warnln logs a message at level Warn on the standard logger.
-func Warnln(args ...interface{}) {
-	fileLineEntry().Warnln(args...)
-}
-
-// Warnf logs a message at level Warn on the standard logger.
-func Warnf(format string, args ...interface{}) {
-	fileLineEntry().Warnf(format, args...)
-}
-
-// Error logs a message at level Error on the standard logger.
-func Error(args ...interface{}) {
-	fileLineEntry().Error(args...)
-}
-
-// Errorln logs a message at level Error on the standard logger.
-func Errorln(args ...interface{}) {
-	fileLineEntry().Errorln(args...)
-}
-
-// Errorf logs a message at level Error on the standard logger.
-func Errorf(format string, args ...interface{}) {
-	fileLineEntry().Errorf(format, args...)
-}
-
-// Fatal logs a message at level Fatal on the standard logger.
-func Fatal(args ...interface{}) {
-	fileLineEntry().Fatal(args...)
-}
-
-// Fatalln logs a message at level Fatal on the standard logger.
-func Fatalln(args ...interface{}) {
-	fileLineEntry().Fatalln(args...)
-}
-
-// Fatalf logs a message at level Fatal on the standard logger.
-func Fatalf(format string, args ...interface{}) {
-	fileLineEntry().Fatalf(format, args...)
-}
-
-// Panic logs a message at level Panic on the standard logger.
-func Panic(args ...interface{}) {
-	fileLineEntry().Panicln(args...)
-}
-
-// Panicln logs a message at level Panic on the standard logger.
-func Panicln(args ...interface{}) {
-	fileLineEntry().Panicln(args...)
-}
-
-// Panicf logs a message at level Panic on the standard logger.
-func Panicf(format string, args ...interface{}) {
-	fileLineEntry().Panicf(format, args...)
-}

vendor/vendor.json

@@ -4,18 +4,21 @@
 	"package": [
 		{
 			"checksumSHA1": "htjvdG/znrHmFYRQBqA2vHrJsF4=",
+			"origin": "github.com/prometheus/statsd_exporter/vendor/github.com/Sirupsen/logrus",
 			"path": "github.com/Sirupsen/logrus",
 			"revision": "cd7d1bbe41066b6c1f19780f895901052150a575",
 			"revisionTime": "2016-04-25T09:32:37Z"
 		},
 		{
 			"checksumSHA1": "4QnLdmB1kG3N+KlDd1N+G9TWAGQ=",
+			"origin": "github.com/prometheus/statsd_exporter/vendor/github.com/beorn7/perks/quantile",
 			"path": "github.com/beorn7/perks/quantile",
 			"revision": "3ac7bf7a47d159a033b107610db8a1b6575507a4",
 			"revisionTime": "2016-02-29T21:34:45Z"
 		},
 		{
 			"checksumSHA1": "FczzogSoZcKU3h21tCUyHzMsnBY=",
+			"origin": "github.com/prometheus/statsd_exporter/vendor/github.com/golang/protobuf/proto",
 			"path": "github.com/golang/protobuf/proto",
 			"revision": "7cc19b78d562895b13596ddce7aafb59dd789318",
 			"revisionTime": "2016-04-25T21:53:00Z"
@@ -28,54 +31,68 @@
 		},
 		{
 			"checksumSHA1": "bKMZjd2wPw13VwoE7mBeSv5djFA=",
+			"origin": "github.com/prometheus/statsd_exporter/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil",
 			"path": "github.com/matttproud/golang_protobuf_extensions/pbutil",
 			"revision": "c12348ce28de40eed0136aa2b644d0ee0650e56c",
 			"revisionTime": "2016-04-24T11:30:07Z"
 		},
 		{
 			"checksumSHA1": "wQEloMPTblRcywDZnt3WJYjyiv8=",
+			"origin": "github.com/prometheus/statsd_exporter/vendor/github.com/prometheus/client_golang/prometheus",
 			"path": "github.com/prometheus/client_golang/prometheus",
 			"revision": "90c15b5efa0dc32a7d259234e02ac9a99e6d3b82",
 			"revisionTime": "2016-03-17T13:26:13Z"
 		},
 		{
 			"checksumSHA1": "DvwvOlPNAgRntBzt3b3OSRMS2N4=",
+			"origin": "github.com/prometheus/statsd_exporter/vendor/github.com/prometheus/client_model/go",
 			"path": "github.com/prometheus/client_model/go",
 			"revision": "fa8ad6fec33561be4280a8f0514318c79d7f6cb6",
 			"revisionTime": "2015-02-12T10:17:44Z"
 		},
 		{
 			"checksumSHA1": "Zsc9IQzQDkOzqiAITqxEm0JXdws=",
+			"origin": "github.com/prometheus/statsd_exporter/vendor/github.com/prometheus/common/expfmt",
 			"path": "github.com/prometheus/common/expfmt",
-			"revision": "40456948a47496dc22168e6af39297a2f8fbf38c",
+			"revision": "dd586c1c5abb0be59e60f942c22af711a2008cb4",
-			"revisionTime": "2016-03-21T00:19:49Z"
+			"revisionTime": "2016-05-03T22:05:32Z"
 		},
 		{
 			"checksumSHA1": "GWlM3d2vPYyNATtTFgftS10/A9w=",
+			"origin": "github.com/prometheus/statsd_exporter/vendor/github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg",
 			"path": "github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg",
+			"revision": "dd586c1c5abb0be59e60f942c22af711a2008cb4",
+			"revisionTime": "2016-05-03T22:05:32Z"
+		},
+		{
+			"checksumSHA1": "koBNYQryxAG8hyHBlpn8pcnSVdM=",
+			"path": "github.com/prometheus/common/log",
 			"revision": "40456948a47496dc22168e6af39297a2f8fbf38c",
 			"revisionTime": "2016-03-21T00:19:49Z"
 		},
 		{
 			"checksumSHA1": "IwxsYOL9A/K9rvHvGxfyY37dusk=",
+			"origin": "github.com/prometheus/statsd_exporter/vendor/github.com/prometheus/common/model",
 			"path": "github.com/prometheus/common/model",
-			"revision": "40456948a47496dc22168e6af39297a2f8fbf38c",
+			"revision": "dd586c1c5abb0be59e60f942c22af711a2008cb4",
-			"revisionTime": "2016-03-21T00:19:49Z"
+			"revisionTime": "2016-05-03T22:05:32Z"
 		},
 		{
-			"checksumSHA1": "ziqY/FHc6pialrm9Xd2wUlS9f5w=",
+			"checksumSHA1": "91KYK0SpvkaMJJA2+BcxbVnyRO0=",
-			"path": "github.com/prometheus/log",
+			"path": "github.com/prometheus/common/version",
-			"revision": "9a3136781e1ff7bc42736ba4acb81339b1422551",
+			"revision": "dd586c1c5abb0be59e60f942c22af711a2008cb4",
-			"revisionTime": "2015-10-26T01:24:52Z"
+			"revisionTime": "2016-05-03T22:05:32Z"
 		},
 		{
 			"checksumSHA1": "W218eJZPXJG783fUr/z6IaAZyes=",
+			"origin": "github.com/prometheus/statsd_exporter/vendor/github.com/prometheus/procfs",
 			"path": "github.com/prometheus/procfs",
 			"revision": "abf152e5f3e97f2fafac028d2cc06c1feb87ffa5",
 			"revisionTime": "2016-04-11T19:08:41Z"
 		},
 		{
 			"checksumSHA1": "15doxxBfOxOhWExkxjPNo6Y7fEw=",
+			"origin": "github.com/prometheus/statsd_exporter/vendor/golang.org/x/sys/unix",
 			"path": "golang.org/x/sys/unix",
 			"revision": "833a04a10549a95dc34458c195cbad61bbb6cb4d",
 			"revisionTime": "2015-12-11T01:34:15Z"