Merge pull request #12 from linux-immutability-tools/fix/non-zero-exit

fix: exit with non-zero returncode when failing

cmd/root.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"github.com/spf13/cobra"
+    "os"
 )
 
 var rootCmd = &cobra.Command{
@@ -13,6 +14,10 @@ func init() {
 	rootCmd.AddCommand(NewVerifyCommand())
 }
 
-func Execute() error {
-	return rootCmd.Execute()
+func Execute() {
+    // cobra does not exit with a non-zero return code when failing
+    // solution from https://github.com/spf13/cobra/issues/221 
+    if err := rootCmd.Execute(); err != nil {
+        os.Exit(1)
+    }
 }