Make the target actually configurable

main.go

@@ -11,7 +11,7 @@ import (
 )
 
 func notify(msg string) {
-    cmd := exec.Command("notify-send", "-t", "5000", "bat-alert", msg)
+    cmd := exec.Command("notify-send", "-t", "5000", "-u", "critical", "bat-alert", msg)
     err := cmd.Run()
     if err != nil {
         log.Println(err)
@@ -20,6 +20,8 @@ func notify(msg string) {
 
 var targetFlag = flag.Int("target", 15, "when to send the alert")
 
+func main() {
+    flag.Parse()
     sent := false
     for {
         capacity, err := os.ReadFile("/sys/class/power_supply/BAT0/capacity")
@@ -32,7 +34,7 @@ var targetFlag = flag.Int("target", 15, "when to send the alert")
             notify("error: " + err.Error())
         }
 
-        if numCap < 15 {
+        if numCap <= *targetFlag {
             if !sent {
                 sent = true
                 notify("battery running low!")

test.txt

@@ -1 +0,0 @@
-