feat: add Ubuntu::ESM, use Hash.merge

Author: initdc

lib/rootfs/distro/ubuntu.rb

@@ -6,25 +6,26 @@ module Ubuntu
       # https://ubuntu.com/download
 
       # https://wiki.ubuntu.com/Releases
+      # http://releases.ubuntu.com/
       # https://cloud-images.ubuntu.com/
-      CODENAME_VERSION = {
-        lunar: "23.04",
-        kinetic: "22.10",
+      LTS = {
         jammy: "22.04",
         focal: "20.04",
-        bionic: "18.04",
-        xenial: "16.04",
-        trusty: "14.04"
+        bionic: "18.04"
       }
 
-      LTS = {
-        jammy: "22.04",
-        focal: "20.04",
-        bionic: "18.04",
+      ESM = {
         xenial: "16.04",
         trusty: "14.04"
       }
 
+      DEV = {
+        lunar: "23.04",
+        kinetic: "22.10"
+      }
+
+      CODENAME_VERSION = {}.merge(DEV, LTS, ESM)
+
       EDITION_RELEASE_URL = {
         Desktop: "http://cdimage.ubuntu.com/releases/",
         Server: "http://cdimage.ubuntu.com/releases/",

lib/rootfs/distro/ubuntu_test.rb

@@ -3,9 +3,11 @@
 require_relative "ubuntu"
 
 class MyClass
+  extend RootFS::Distro::Ubuntu
   include RootFS::Distro::Ubuntu
 end
 
 u = MyClass.new
 
-p u.is_lts?("20.04.5")
+p u.is_lts?("20.04.5")
+p MyClass::CODENAME_VERSION