Remove the Exception when the AssemblyCompanyAttribute and AssemblyCopyrightAttribute are null and set Copyright to a default value.

Author: moh-hassan

src/CommandLine/Text/CopyrightInfo.cs

@@ -27,11 +27,11 @@ public class CopyrightInfo
         /// <summary>
         /// An empty object used for initialization.
         /// </summary>
-        public static CopyrightInfo Empty 
+        public static CopyrightInfo Empty
         {
             get
             {
-               return new CopyrightInfo("author", 1); 
+                return new CopyrightInfo("author", DateTime.Now.Year);
             }
         }
 
@@ -115,12 +115,13 @@ public static CopyrightInfo Default
                     case MaybeType.Just:
                         return new CopyrightInfo(copyrightAttr.FromJustOrFail());
                     default:
-                        // if no copyright attribute exist but a company attribute does, use it as copyright holder
-                        return new CopyrightInfo(
-                                ReflectionHelper.GetAttribute<AssemblyCompanyAttribute>().FromJustOrFail(
-                                    new InvalidOperationException("CopyrightInfo::Default requires that you define AssemblyCopyrightAttribute or AssemblyCompanyAttribute.")
-                                ).Company,
-                                DateTime.Now.Year);
+                        var companyAttr = ReflectionHelper.GetAttribute<AssemblyCompanyAttribute>();
+                        return companyAttr.IsNothing()
+                            //if both copyrightAttr and companyAttr aren't available in Assembly,don't fire Exception
+                            ? Empty
+                            // if no copyright attribute exist but a company attribute does, use it as copyright holder
+                            : new CopyrightInfo(companyAttr.FromJust().Company, DateTime.Now.Year);
+                        
                 }
             }
         }
@@ -192,4 +193,4 @@ protected virtual string FormatYears(int[] years)
             return yearsPart.ToString();
         }
     }
-}
+}