Initial commit

ifmon.go

@@ -0,0 +1,62 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+// IfStatus global var conaining cumulative status of all monitored net intefaces.
+var IfStatus string
+
+// UpdateIfStatus updates network interfaces status for i3bar.
+func UpdateIfStatus() {
+	for {
+		var statusSum string
+
+		for _, item := range Conf.NetIf.If {
+			var (
+				name = item.Name
+			)
+
+			if name == "" {
+				name = filepath.Base(item.Dir)
+			}
+
+			operstate, err := os.ReadFile(item.Dir + "/operstate")
+
+			if err != nil {
+				operstate = []byte("?")
+
+				log.Printf("Unable to get net if status from file %s: %s", item.Dir+"/operstate", err)
+			} else {
+				switch strings.TrimSpace(string(operstate)) {
+				case "up":
+					StatusStr := fmt.Sprintf("<span foreground=\"%s\">⍋</span>", Conf.NetIf.UpColor)
+					operstate = []byte(StatusStr)
+				case "down":
+					statusStr := fmt.Sprintf("<span foreground=\"%s\">⍒</span>", Conf.NetIf.DownColor)
+					operstate = []byte(statusStr)
+				default:
+					operstate = []byte(`?`)
+				}
+			}
+
+			if statusSum != "" {
+				statusSum += " "
+			}
+
+			statusSum += fmt.Sprintf("%s:%s", name, operstate)
+		}
+
+		if IfStatus != statusSum {
+			IfStatus = statusSum
+			UpdateReady <- true
+		}
+
+		time.Sleep(3 * time.Second)
+	}
+}