Add go-githubactions dependency

go.mod

@@ -1,3 +1,5 @@
 module git.danicos.dev/actions/simple-go-action
 
 go 1.25.6
+
+require github.com/sethvargo/go-githubactions v1.3.2

go.sum

@@ -0,0 +1,2 @@
+github.com/sethvargo/go-githubactions v1.3.2 h1:gkibLr/QjosgNWoCf1V58rTMRZw7xZtSB7dY4atbl1Y=
+github.com/sethvargo/go-githubactions v1.3.2/go.mod h1:7/4WeHgYfSz9U5vwuToCK9KPnELVHAhGtRwLREOQV80=

main.go

@@ -4,37 +4,13 @@ import (
 	"fmt"
 	"os"
 	"time"
+
+	ga "github.com/sethvargo/go-githubactions"
 )
 
 func main() {
-	username := readInputs()
+	username := ga.GetInput("username")
 	fmt.Printf("username is %s\n", username)
 
-	err := writeOutputs("time", time.Now().Format("2006-01-02 15:04:05"))
-	if err != nil {
-		panic(err)
-	}
-}
-
-func readInputs() string {
-	username := os.Getenv("INPUT_USERNAME")
-	return username
-}
-
-func writeOutputs(k, v string) (err error) {
-	msg := fmt.Sprintf("%s=%s", k, v)
-	outputFilepath := os.Getenv("GITHUB_OUTPUT")
-	f, err := os.OpenFile(outputFilepath, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
-	if err != nil {
-		return
-	}
-	defer func() {
-		if cErr := f.Close(); cErr != nil && err == nil {
-			err = cErr
-		}
-	}()
-	if _, err = f.Write([]byte(msg)); err != nil {
-		return
-	}
-	return
+	ga.SetOutput("time", time.Now().Format("2006-01-02 15:04:05"))
 }