replacing the moneta adapter with pstore implementation

moneta seems to be an overkill for our use case. we can do well with pstore instead for storing the key value pairs into file while staying compatible with faraday's http cache interface. this change also adds the pstore gem to gemspec and pins it to ~>0.1.1 because that's the version that was shipped with ruby 3.1.*.

Signed-off-by: Rishi Kumar Chawda <rishichawda@users.noreply.github.com>

Author: rishichawda

components/ruby/Gemfile.lock

@@ -6,8 +6,8 @@ PATH
       faraday (>= 1, < 2)
       faraday-http-cache
       mixlib-log (~> 3.0)
-      moneta (~> 1.6)
       ostruct (~> 0.1.0)
+      pstore (~> 0.1.1)
       tty-prompt (~> 0.23)
       tty-spinner (~> 0.9.3)
 
@@ -105,6 +105,7 @@ GEM
     pry (0.15.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
+    pstore (0.1.4)
     public_suffix (6.0.2)
     racc (1.8.1)
     rainbow (3.1.1)

components/ruby/chef-licensing.gemspec

@@ -30,10 +30,10 @@ Gem::Specification.new do |spec|
   spec.add_dependency "tty-prompt", "~> 0.23"
   spec.add_dependency "faraday", ">= 1", "< 2"
   spec.add_dependency "faraday-http-cache"
-  spec.add_dependency "moneta", "~> 1.6"
   spec.add_dependency "tty-spinner", "~> 0.9.3"
   spec.add_dependency "mixlib-log", "~> 3.0"
-
+  
   # Gem dependency needed with Ruby 3.4 upgrade
   spec.add_dependency "ostruct", "~> 0.1.0"
+  spec.add_dependency "pstore", "~> 0.1.1"
 end

components/ruby/lib/chef-licensing/moneta_adapter.rb

@@ -0,0 +1,36 @@
+require "pstore"
+
+module ChefLicensing
+  # Simple adapter to make PStore compatible with Faraday::HttpCache
+  class PStoreAdapter
+    def initialize(cache_dir)
+      @store_path = File.join(cache_dir, "chef_licensing_cache.pstore")
+      @store = PStore.new(@store_path)
+    end
+
+    # Interface methods required by faraday-http-cache
+    def read(key)
+      @store.transaction { @store[key] }
+    end
+
+    def write(key, value, options = {})
+      # PStore handles persistence, Faraday::HttpCache handles
+      # HTTP cache headers for expiration
+      @store.transaction { @store[key] = value }
+    end
+
+    def delete(key)
+      @store.transaction { @store.delete(key) }
+    end
+
+    def exist?(key)
+      @store.transaction { @store.root?(key) }
+    end
+
+    def clear
+      @store.transaction do
+        @store.roots.each { |root| @store.delete(root) }
+      end
+    end
+  end
+end

components/ruby/lib/chef-licensing/pstore_adapter.rb

@@ -5,7 +5,7 @@
 require_relative "../exceptions/restful_client_connection_error"
 require_relative "../exceptions/missing_api_credentials_error"
 require_relative "../config"
-require_relative "../moneta_adapter"
+require_relative "../pstore_adapter"
 require_relative "middleware/exceptions_handler"
 require_relative "middleware/content_type_validator"
 
@@ -132,7 +132,7 @@ def handle_post_connection(url = nil)
       end
 
       def get_connection(url = nil)
-        store = MonetaAdapter.new(Dir.tmpdir)
+        store = PStoreAdapter.new(Dir.tmpdir)
         Faraday.new(url: url) do |config|
           config.request :json
           config.response :json, parser_options: { object_class: OpenStruct }

components/ruby/lib/chef-licensing/restful_client/base.rb

@@ -1,8 +1,8 @@
 require "spec_helper"
-require "chef-licensing/moneta_adapter"
+require "chef-licensing/pstore_adapter"
 require "chef-licensing/string_refinements"
 
-RSpec.describe ChefLicensing::MonetaAdapter do
+RSpec.describe ChefLicensing::PStoreAdapter do
   let(:cache_dir) { Dir.mktmpdir }
   let(:adapter) { described_class.new(cache_dir) }
 
@@ -51,7 +51,7 @@
   end
 end
 
-RSpec.describe ChefLicensing::MonetaAdapter do
+RSpec.describe ChefLicensing::PStoreAdapter do
   let(:cache_dir) { Dir.mktmpdir }
   let(:adapter) { described_class.new(cache_dir) }