cmd: fix human output

cmd/kube-score/main.go

@@ -213,8 +213,10 @@ Use "-" as filename to read from STDIN.`, execName(binName))
 		if err != nil {
 			termWidth = 80
 		}
-		_, err = human.Human(scoreCard, *verboseOutput, termWidth)
-		return err
+		r, err = human.Human(scoreCard, *verboseOutput, termWidth)
+		if err != nil {
+			return err
+		}
 	case *outputFormat == "ci" && version == "v1":
 		r = ci.CI(scoreCard)
 	case *outputFormat == "sarif":

renderer/human/human.go

@@ -37,24 +37,28 @@ func Human(scoreCard *scorecard.Scorecard, verboseOutput int, termWidth int) (io
 		}
 
 		// Adjust to termsize
-		fmt.Fprint(w, safeRepeat(" ", min(80, termWidth)-writtenHeaderChars-2))
+		_, err := fmt.Fprint(w, safeRepeat(" ", min(80, termWidth)-writtenHeaderChars-2))
+		if err != nil {
+			return nil, fmt.Errorf("failed to write terminal padding: %w", err)
+		}
 
 		switch {
 		case scoredObject.AnyBelowOrEqualToGrade(scorecard.GradeCritical):
-			fmt.Fprintf(w, "💥\n")
+			_, err = fmt.Fprintf(w, "💥\n")
 		case scoredObject.AnyBelowOrEqualToGrade(scorecard.GradeWarning):
-			fmt.Fprintf(w, "🤔\n")
+			_, err = fmt.Fprintf(w, "🤔\n")
 		default:
-			fmt.Fprintf(w, "✅\n")
+			_, err = fmt.Fprintf(w, "✅\n")
+		}
+		if err != nil {
+			return nil, fmt.Errorf("failed to write: %w", err)
 		}
 
 		for _, card := range scoredObject.Checks {
 			r := outputHumanStep(card, verboseOutput, termWidth)
-			_, err := io.Copy(w, r)
-			if err != nil {
-				return nil, err
+			if _, err := io.Copy(w, r); err != nil {
+				return nil, fmt.Errorf("failed to copy output: %w", err)
 			}
-
 		}
 	}