Waybar and Wodi

.config/waybar/modules/update-check.go

@@ -0,0 +1,58 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+)
+
+type jsonOutput struct {
+	Text       string `json:"text,omitempty"`
+	Alt        string `json:"alt,omitempty"`
+	Tooltip    string `json:"tooltip,omitempty"`
+	Class      string `json:"class,omitempty"`
+	Percentage int    `json:"percentage,omitempty"`
+}
+
+func main() {
+	o := jsonOutput{}
+
+	pac, err := exec.Command("checkupdates").CombinedOutput()
+	if err != nil {
+		o.Tooltip = err.Error()
+	}
+
+	aur, err := exec.Command("yay", "--devel", "-Qu").CombinedOutput()
+	if err != nil {
+		o.Tooltip += err.Error()
+	}
+
+	updates := append(strings.Split(string(pac), "\n"), strings.Split(string(aur), "\n")...)
+	updates = removeEmptyLines(updates)
+
+	n := len(updates)
+
+	o.Class = "no-updates"
+	if n > 0 {
+		o.Class = "updates"
+		o.Tooltip = strings.Join(updates, "\n")
+	}
+
+	o.Text = fmt.Sprintf("%d", n)
+	o.Alt = fmt.Sprintf("%d", n)
+	o.Percentage = n
+
+	json.NewEncoder(os.Stdout).Encode(o)
+}
+
+func removeEmptyLines(list []string) []string {
+	out := []string{}
+	for _, line := range list {
+		if len(line) > 0 {
+			out = append(out, line)
+		}
+	}
+	return out
+}