Add package to main interface

Author: martinemde

lib/query_packwerk.rb

@@ -26,6 +26,11 @@ module QueryPackwerk
   # TODO: module_function isn't playing nicely with Sorbet
   extend self # rubocop:todo Style/ModuleFunction
 
+  sig { params(name: String).returns(T.nilable(QueryPackwerk::Package)) }
+  def package(name)
+    Packages.where(name: name).first
+  end
+
   # All violations for a pack
   sig { params(pack_name: String).returns(QueryPackwerk::Violations) }
   def violations_for(pack_name)

spec/query_packwerk_spec.rb

@@ -4,6 +4,16 @@
 RSpec.describe QueryPackwerk do
   include_context 'pseudo packs'
 
+  describe '#package' do
+    it 'gets a package by name' do
+      expect(described_class.package(package_name)).to be_a(QueryPackwerk::Package)
+    end
+
+    it 'returns nil if the package does not exist' do
+      expect(described_class.package('not_here')).to be_nil
+    end
+  end
+
   describe '#violations_for' do
     it 'gets all violations for a pack' do
       violations = described_class.violations_for(package_name)