FI-3588: Use git for files in test kit gemspecs (#578)

* update gemspec template to use git for files to include

* initialize git repo in new test kits

* silence git output

* check for existence of git directory in specs

lib/inferno/apps/cli/new.rb

@@ -71,6 +71,7 @@ def create_test_kit
         inside(root_name) do
           bundle_install
           inferno_migrate
+          initialize_git_repo
           load_igs
         end
 
@@ -106,6 +107,10 @@ def inferno_migrate
         run 'bundle exec inferno migrate', verbose: !options['quiet'], capture: options['quiet']
       end
 
+      def initialize_git_repo
+        run 'git init -q && git add . && git commit -aqm "initial commit"'
+      end
+
       def load_igs
         config = { verbose: !options['quiet'] }
         options['implementation_guide']&.each_with_index do |ig, idx|

lib/inferno/apps/cli/templates/%library_name%.gemspec.tt

@@ -21,13 +21,7 @@ Gem::Specification.new do |spec|
   spec.metadata['inferno_test_kit'] = 'true'
   # spec.metadata['homepage_uri'] = spec.homepage
   # spec.metadata['source_code_uri'] = 'TODO'
-  spec.files = [
-    Dir['lib/**/*.rb'],
-    Dir['lib/**/*.json'],
-    Dir['config/presets/*.json'],
-    Dir['config/presets/*.json.erb'],
-    'LICENSE'
-  ].flatten
+  spec.files         = `[ -d .git ] && git ls-files -z lib config/presets LICENSE`.split("\x0")
 
   spec.require_paths = ['lib']
 end

spec/inferno/cli/new_spec.rb

@@ -27,6 +27,7 @@
       expect { described_class.start(cli_args) }.to_not raise_error
 
       expect(Dir).to exist('test-fhir-app')
+      expect(Dir).to exist('test-fhir-app/.git')
       expect(File).to exist('test-fhir-app/Gemfile')
       expect(File).to exist('test-fhir-app/test_fhir_app.gemspec')
       expect(File).to exist('test-fhir-app/lib/test_fhir_app.rb')