(FACT-3114) Arch Linux: Implement os version facts

lib/facter/facts/archinux/os/release.rb

@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+module Facts
+  module Archlinux
+    module Os
+      class Release
+        FACT_NAME = 'os.release'
+        ALIASES = %w[operatingsystemmajrelease operatingsystemrelease].freeze
+
+        def call_the_resolver
+          version = determine_release_version
+
+          return Facter::ResolvedFact.new(FACT_NAME, nil) unless version
+
+          [Facter::ResolvedFact.new(FACT_NAME, version),
+           Facter::ResolvedFact.new(ALIASES.first, version['major'], :legacy),
+           Facter::ResolvedFact.new(ALIASES.last, version['full'], :legacy)]
+        end
+
+        def determine_release_version
+          version = Facter::Resolvers::Uname.resolve(:kernelrelease)
+
+          Facter::Util::Facts.release_hash_from_string(version)
+        end
+      end
+    end
+  end
+end