lib/semmy/version_string.rb in semmy-0.3.0 vs lib/semmy/version_string.rb in semmy-0.4.0

@@ -34,10 +34,14 @@
 
     def minor_only(version)
       version.split('.')[0..1].join('.')
     end
 
+    def patch_level?(version)
+      components(version)[:patch].to_i > 0
+    end
+
     def components(version)
       components = version.split('.')
 
       {
         major: components[0],
@@ -56,8 +60,27 @@
       else
         fail(NoPreviousMinor, "Cannot get previous version of #{version}.")
       end
 
       components.join('.')
+    end
+
+    def previous_stable_branch_name(version, stable_branch_name_pattern)
+      stable_branch_name_pattern % previous_minor_version_components(version)
+    end
+
+    private
+
+    def previous_minor_version_components(version)
+      components = version.split('.').map(&:to_i)
+
+      if components[1].zero?
+        fail(NoPreviousMinor, "Cannot get previous minor version of #{version}.")
+      end
+
+      {
+        major: components[0],
+        minor: components[1] - 1
+      }
     end
   end
 end