feat: add list-latest-pact-versions command

lib/pact_broker/client/cli/broker.rb

@@ -157,6 +157,17 @@ def create_or_update_pacticipant(*required_but_ignored)
           require 'pact_broker/client/pacticipants/create'
           result = PactBroker::Client::Pacticipants2::Create.call({ name: options.name, repository_url: options.repository_url }, options.broker_base_url, pact_broker_client_options)
           $stdout.puts result.message
+          exit(1) unless result.success
+        end
+
+        desc 'list-latest-pact-versions', 'List the latest pact for each integration'
+        shared_authentication_options_for_pact_broker
+        method_option :output, aliases: "-o", desc: "json or table", default: 'table'
+        def list_latest_pact_versions(*required_but_ignored)
+          require 'pact_broker/client/pacts/list_latest_versions'
+          result = PactBroker::Client::Pacts::ListLatestVersions.call(options.broker_base_url, options.output, pact_broker_client_options)
+          $stdout.puts result.message
+          exit(1) unless result.success
         end
 
         ignored_and_hidden_potential_options_from_environment_variables

lib/pact_broker/client/pacts/list_latest_versions.rb

@@ -0,0 +1,65 @@
+require 'pact_broker/client/hal'
+require 'pact_broker/client/command_result'
+require 'pact_broker/client/hal_client_methods'
+
+module PactBroker
+  module Client
+    module Pacts
+      class ListLatestVersions
+
+        include HalClientMethods
+
+        def self.call(pact_broker_base_url, output, pact_broker_client_options)
+          new(pact_broker_base_url, output, pact_broker_client_options).call
+        end
+
+        def initialize(pact_broker_base_url, output, pact_broker_client_options)
+          @index_entry_point = create_index_entry_point(pact_broker_base_url, pact_broker_client_options)
+          @output = output
+        end
+
+        def call
+          message = if output == 'json'
+            versions_resource.response.body
+          else
+            to_text(versions)
+          end
+          PactBroker::Client::CommandResult.new(true, message)
+
+        rescue StandardError => e
+          PactBroker::Client::CommandResult.new(false, e.message)
+        end
+
+        private
+
+        attr_reader :index_entry_point, :output
+
+        def versions
+          versions_resource.pacts.collect do | pact |
+            OpenStruct.new(
+              consumer_name: pact['_embedded']['consumer']['name'],
+              provider_name: pact['_embedded']['provider']['name'],
+              consumer_version_number: pact['_embedded']['consumer']['_embedded']['version']['number'],
+              created_at: pact['createdAt']
+            )
+          end
+        end
+
+        def versions_resource
+          index_entry_point.get!._link('pb:latest-pact-versions').get!
+        end
+
+        def to_text(pacts)
+          require 'table_print'
+          options = [
+            { consumer_name: {display_name: 'consumer'} },
+            { consumer_version_number: {display_name: 'consumer_version'} },
+            { provider_name: {display_name: 'provider'} },
+            { created_at: {} }
+          ]
+          TablePrint::Printer.new(pacts, options).table_print
+        end
+      end
+    end
+  end
+end