FIX: Don't use backticks that take in inputs.

lib/discourse.rb

@@ -1,4 +1,5 @@
 require 'cache'
+require 'open3'
 require_dependency 'plugin/instance'
 require_dependency 'auth/default_current_user_provider'
 require_dependency 'version'
@@ -16,6 +17,23 @@ module Discourse
     extend Sidekiq::ExceptionHandler
   end
 
+  class Utils
+    def self.execute_command(*command, failure_message: "")
+      stdout, stderr, status = Open3.capture3(*command)
+
+      if !status.success?
+        failure_message = "#{failure_message}\n" if !failure_message.blank?
+        raise "#{failure_message}#{stderr}"
+      end
+
+      stdout
+    end
+
+    def self.pretty_logs(logs)
+      logs.join("\n".freeze)
+    end
+  end
+
   # Log an exception.
   #
   # If your code is in a scheduled job, it is recommended to use the