Add DiasporaFederation::Schemas to access JSON schema

diaspora_federation-json_schema.gemspec

@@ -15,5 +15,5 @@ Gem::Specification.new do |s|
                   "validating JSON serialized federation objects."
   s.license     = "AGPL-3.0"
 
-  s.files       = Dir["lib/diaspora_federation/schemas/*.json"]
+  s.files       = Dir["lib/diaspora_federation/schemas.rb", "lib/diaspora_federation/schemas/*.json"]
 end

diaspora_federation.gemspec

@@ -17,7 +17,8 @@ Gem::Specification.new do |s|
   s.license     = "AGPL-3.0"
 
   s.files       = Dir["lib/**/*", "LICENSE", "README.md", "Changelog.md"] -
-                    Dir["lib/diaspora_federation/{engine,rails,test}.rb",
+                    Dir["lib/diaspora_federation/{engine,rails,schemas,test}.rb",
+                        "lib/diaspora_federation/schemas/*",
                         "lib/diaspora_federation/test/*",
                         "lib/tasks/*.rake"]
 

lib/diaspora_federation/schemas.rb

@@ -0,0 +1,17 @@
+require "pathname"
+require "json"
+
+module DiasporaFederation
+  # A helper class to access the JSON schema.
+  module Schemas
+    # federation_entities schema uri
+    FEDERATION_ENTITIES_URI = "https://diaspora.github.io/diaspora_federation/schemas/federation_entities.json".freeze
+
+    # Parsed federation_entities schema
+    def self.federation_entities
+      @federation_entities ||= JSON.parse(
+        Pathname.new(__dir__).join("schemas", "federation_entities.json").read
+      )
+    end
+  end
+end

spec/lib/diaspora_federation/schemas_spec.rb

@@ -0,0 +1,13 @@
+require "diaspora_federation/schemas"
+
+module DiasporaFederation
+  describe Schemas do
+    describe ".federation_entities" do
+      it "returns the parsed federation_entities JSON schema" do
+        schema = DiasporaFederation::Schemas.federation_entities
+        expect(schema).to be_a(Hash)
+        expect(schema["id"]).to eq(DiasporaFederation::Schemas::FEDERATION_ENTITIES_URI)
+      end
+    end
+  end
+end