set min go version to 1.21

get rid of some deprecations

.github/workflows/tests.yml

@@ -14,8 +14,9 @@ jobs:
     strategy:
       matrix:
         go:
-          - ^1.19
-          - ^1.20
+          - ^1.21
+          - ^1.22
+          - ^1.23
     steps:
 
       - name: Set up Go 1.x
@@ -96,12 +97,14 @@ jobs:
     strategy:
       matrix:
         os:
-          - debian:9
-          - debian:10
-          - ubuntu:18.04
+          - debian:11
+          - debian:12
+          - debian:13
           - ubuntu:20.04
-          - centos:7
+          - ubuntu:22.04
+          - ubuntu:24.04
           - centos:8
+          - centos:9
 
     steps:
       - name: Download artifact

client.go

@@ -10,7 +10,7 @@ import (
 	"time"
 )
 
-// Client is a class wich sends metrics to the carbon receivers
+// Client is a class which sends metrics to the carbon receivers
 type Client struct {
 	// User config.
 	Conf *Config
@@ -137,9 +137,9 @@ func (c *Client) tryToSendToGraphite(metric string, carbonAddr string, conn net.
 }
 
 // Run go routine per carbon server to:
-//  1) Send data from retryFile to a carbon
-//  2) Send metrics from monitoring channel to a carbon
-//  3) Send metrics from the main channel to carbon
+//  1. Send data from retryFile to a carbon
+//  2. Send metrics from monitoring channel to a carbon
+//  3. Send metrics from the main channel to carbon
 //
 // And save everything to the retryFile on any error
 func (c Client) runBackend(carbonAddr string) {
@@ -235,7 +235,7 @@ func (c Client) runBackend(carbonAddr string) {
 	}
 }
 
-//Run a client, which:
+// Run a client, which:
 // 1) Make monitoring and main channels per carbon server
 // 2) Launchs go routine per carbon server
 // 3) Copy metrics from monitoring and main channels to the carbon server specific

config_linux.go

@@ -1,4 +1,4 @@
-// +build !noacl
+//go:build !noacl
 
 package grafsy
 

go.mod

@@ -1,9 +1,9 @@
 module github.com/leoleovich/grafsy
 
-go 1.14
+go 1.21
 
 require (
-	github.com/BurntSushi/toml v0.3.1
+	github.com/BurntSushi/toml v1.4.0
 	github.com/naegelejd/go-acl v0.0.0-20200406162857-ebe394c522e5
 	github.com/pkg/errors v0.9.1
 )

go.sum

@@ -1,5 +1,5 @@
-github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
-github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/BurntSushi/toml v1.4.0 h1:kuoIxZQy2WRRk1pttg9asf+WVv6tWQuBNVmK8+nqPr0=
+github.com/BurntSushi/toml v1.4.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/naegelejd/go-acl v0.0.0-20200406162857-ebe394c522e5 h1:R10+S1Knv6udBjyDYU84+zD5R8qLWg7wSH/ddhJSzX4=
 github.com/naegelejd/go-acl v0.0.0-20200406162857-ebe394c522e5/go.mod h1:nMzsOoQWESVMF6s+hAF8Qnc14fUIpL7pfmGm6MV8B2g=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=

server.go

@@ -3,7 +3,6 @@ package grafsy
 import (
 	"bufio"
 	"fmt"
-	"io/ioutil"
 	"net"
 	"os"
 	"strconv"
@@ -173,16 +172,19 @@ func (s Server) handleRequest(conn net.Conn) {
 // This is a second way how to send metrics, except network.
 func (s Server) handleDirMetrics() {
 	for ; ; time.Sleep(time.Duration(s.Conf.ClientSendInterval) * time.Second) {
-		files, err := ioutil.ReadDir(s.Conf.MetricDir)
+		entries, err := os.ReadDir(s.Conf.MetricDir)
 		if err != nil {
 			panic(err.Error())
 		}
-		for _, f := range files {
-			resultsList, _ := readMetricsFromFile(s.Conf.MetricDir + "/" + f.Name())
+		for _, entry := range entries {
+			info, err := entry.Info()
+			if err != nil {
+				panic(err.Error())
+			}
+			resultsList, _ := readMetricsFromFile(s.Conf.MetricDir + "/" + info.Name())
 			s.Mon.Increase(&s.Mon.serverStat.dir, len(resultsList))
 			s.cleanAndUseIncomingData(resultsList)
 		}
-
 	}
 }