[WIP] Update linter config + speed optimizations

internal/lib/vpn.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"net"
 	"os"
+	"strings"
 	"time"
 )
 
@@ -11,8 +12,8 @@ import (
 func (c *MyConfig) UpdateVPNStatus() {
 	var (
 		vpnCStatus         string
-		tcpCheck           string
 		vpnCheck           string
+		b                  strings.Builder
 		InitialDelay       = 100 * time.Millisecond
 		LoopIterationDelay = 3 * time.Second
 		Delay              = InitialDelay
@@ -27,36 +28,47 @@ func (c *MyConfig) UpdateVPNStatus() {
 
 		if c.VPNFileCheck() {
 			if c.Vpn.UpColor == "" {
-				vpnCheck = `⍋`
+				b.WriteRune('⍋')
 			} else {
-				vpnCheck = fmt.Sprintf(`<span foreground="%s">⍋</span>`, c.Vpn.UpColor)
+				b.WriteString("<span foreground=\"")
+				b.WriteString(c.Vpn.UpColor)
+				b.WriteString("\">⍋</span>")
 			}
 		} else {
 			if c.Vpn.DownColor == "" {
-				vpnCheck = `⍒`
+				b.WriteRune('⍒')
 			} else {
-				vpnCheck = fmt.Sprintf(`<span foreground="%s">⍒</span>`, c.Vpn.DownColor)
+				b.WriteString("<span foreground=\"")
+				b.WriteString(c.Vpn.DownColor)
+				b.WriteString("\">⍒</span>")
 			}
 		}
 
+		vpnCheck = b.String()
+		b.Reset()
+
 		if c.Vpn.TCPCheck.Enabled {
 			if c.VPNTCPCheck() {
 				if c.Vpn.UpColor == "" {
-					tcpCheck = `✔`
+					b.WriteRune('✔')
 				} else {
-					tcpCheck = fmt.Sprintf(`<span foreground="%s">✔</span>`, c.Vpn.UpColor)
+					b.WriteString("<span foreground=\"")
+					b.WriteString(c.Vpn.UpColor)
+					b.WriteString("\">✔</span>")
 				}
 			} else {
 				if c.Vpn.DownColor == "" {
-					tcpCheck = `✘`
+					b.WriteRune('✘')
 				} else {
-					tcpCheck = fmt.Sprintf(`<span foreground="%s">✘</span>`, c.Vpn.DownColor)
+					b.WriteString("<span foreground=\"")
+					b.WriteString(c.Vpn.DownColor)
+					b.WriteString("\">✘</span>")
 				}
 			}
 
-			vpnCStatus = fmt.Sprintf("VPN:%s:%s", vpnCheck, tcpCheck)
+			vpnCStatus = "VPN:" + vpnCheck + ":" + b.String()
 		} else {
-			vpnCStatus = fmt.Sprintf("VPN:%s", vpnCheck)
+			vpnCStatus = "VPN:" + vpnCheck
 		}
 
 		if c.Values.VPNStatus != vpnCStatus {
@@ -66,9 +78,9 @@ func (c *MyConfig) UpdateVPNStatus() {
 	}
 }
 
-// VPNTCPCheck intended to check arbitrary service inside vpn segment, to indicate that openvpn sevice not stoned.
+// VPNTCPCheck intended to check arbitrary service inside vpn segment, to indicate that openvpn service not stoned.
 func (c *MyConfig) VPNTCPCheck() bool {
-	conn, err := net.DialTimeout(
+	conn, err := net.DialTimeout( //nolint: noctx
 		"tcp",
 		fmt.Sprintf("%s:%d", c.Vpn.TCPCheck.Host, c.Vpn.TCPCheck.Port), //nolint: hostport
 		time.Second*time.Duration(c.Vpn.TCPCheck.Timeout),