Remove dependency on prometheus/common/log; use logrus (#13)

* Remove dependency on prometheus/common/log on only use logrus for all logging

* use logrus 1.9.2

* update go.sum

NOTICE

@@ -6,9 +6,6 @@ The following components are included in this product:
 This product includes software developed as part of the
 Go project, https://golang.org/
 
-This product includes software developed as part of the
-Prometheus Golang client, https://github.com/prometheus/client_golang
-
 This product includes software developed as part of the
 "YAML support for the Go language" by Canonical Ltd.
 https://github.com/go-yaml/yaml

fswatcher/fswatcher.go

@@ -17,7 +17,6 @@ package fswatcher
 import (
 	"fmt"
 	"github.com/jdrews/go-tailer/glob"
-	"github.com/prometheus/common/log"
 	"github.com/sirupsen/logrus"
 	"io"
 	"os"
@@ -203,9 +202,10 @@ func (t *fileTailer) shutdown() {
 
 	close(t.lines)
 	close(t.errors)
+	logger := logrus.New()
 
 	warnf := func(format string, args ...interface{}) {
-		log.Warnf("error while shutting down the file system watcher: %v", fmt.Sprintf(format, args))
+		logger.Warnf("error while shutting down the file system watcher: %v", fmt.Sprintf(format, args))
 	}
 
 	for _, dir := range t.watchedDirs {

go.mod

@@ -3,15 +3,12 @@ module github.com/jdrews/go-tailer
 require (
 	github.com/Shopify/sarama v1.27.0
 	github.com/bitly/go-simplejson v0.5.0
-	github.com/prometheus/common v0.13.0
 	github.com/sirupsen/logrus v1.9.2
 	golang.org/x/exp v0.0.0-20200917184745-18d7dbdd5567
 	gopkg.in/yaml.v2 v2.4.0
 )
 
 require (
-	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
-	github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d // indirect
 	github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/eapache/go-resiliency v1.2.0 // indirect
@@ -28,7 +25,6 @@ require (
 	golang.org/x/net v0.7.0 // indirect
 	golang.org/x/sys v0.5.0 // indirect
 	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
-	gopkg.in/alecthomas/kingpin.v2 v2.2.6 // indirect
 	gopkg.in/jcmturner/aescts.v1 v1.0.1 // indirect
 	gopkg.in/jcmturner/dnsutils.v1 v1.0.1 // indirect
 	gopkg.in/jcmturner/gokrb5.v7 v7.5.0 // indirect