Rename Pgpm::Package::PGXN#license into #license_text, restore old #license method

Author: qount25

lib/pgpm/package/metadata.rb

@@ -25,16 +25,6 @@ def broken?
         requires.any?(&:broken?)
       end
 
-      def license
-        path = "#{self.source.to_s}"
-        ["LICENSE", "license", "License"].each do |fn|
-          if File.exist?("#{path}/#{fn}")
-            return File.read("#{path}/#{fn}")
-          end
-        end
-        nil
-      end
-
       module ClassMethods
         def extension_name
           self[:latest]&.extension_name

lib/pgpm/package/pgxn.rb

@@ -42,6 +42,22 @@ def description
       end
 
       def license
+        if provides_pgxn_meta_json?
+          lic = pgxn_meta_json["license"]
+          case lic
+          when Hash
+            lic.keys.join(" or ")
+          when Array
+            lic.join(" or ")
+          when String
+            lic
+          end
+        else
+          super
+        end
+      end
+
+      def license_text
         path = "#{self.source.to_s}"
         ["LICENSE", "license", "License"].each do |fn|
           if File.exist?("#{path}/#{fn}")