Disable documentation generation

Adds option --no-document to install command to reproduce behavior
before commit c58aba06 with Rubygems
version >= 2.0.0 .

rubygems.py

@@ -135,6 +135,8 @@ class Recipe(object):
 
     def _install_rubygems(self):
         url, version = self._get_latest_rubygems()
+        if int(version.split(".")[0]) < 2:
+            raise zc.buildout.UserError("Rubygems version must be >= 2.0.0")
         srcdir = os.path.join(self.buildout['buildout']['parts-directory'],
                               'rubygems-' + version)
         options = {
@@ -201,6 +203,7 @@ class Recipe(object):
             self.ruby_executable,
             gem_executable,
             'install',
+            '--no-document',
             '--bindir=%s' % bindir,
         ]
 

tests/test_rubygems.py

@@ -24,7 +24,7 @@ def touch(path):
 
 
 class fixture(object):
-    def __init__(self, options=None, version='1.0'):
+    def __init__(self, options=None, version='2.0.0'):
         self.options = options or {}
         self.version = version
 
@@ -61,7 +61,7 @@ class fixture(object):
             ('download', 'rubygems.Download'),
         ))
         self.patches['urlopen'].return_value = BytesIO(
-            b'https://rubygems.org/rubygems/rubygems-1.0.zip'
+            b'https://rubygems.org/rubygems/rubygems-2.0.0.zip'
         )
 
         self.makedirs((
@@ -103,8 +103,8 @@ class RubyGemsTests(unittest.TestCase):
 
         args = patches['download'].mock_calls[0][1]
         self.assertEqual(args[2], {
-            'url': 'https://rubygems.org/rubygems/rubygems-1.0.zip',
-            'destination': str(path / 'rubygems-1.0'),
+            'url': 'https://rubygems.org/rubygems/rubygems-2.0.0.zip',
+            'destination': str(path / 'rubygems-2.0.0'),
         })
 
         # Two check_output calls to install rubygems and specified gem
@@ -118,7 +118,7 @@ class RubyGemsTests(unittest.TestCase):
 
         args = patches['check_output'].mock_calls[1][1]
         self.assertEqual(args[0], [
-            'ruby', None, 'install',
+            'ruby', None, 'install', '--no-document',
             '--bindir=%s/rubygems/bin' % path,
             'sass', '--'
         ])
@@ -162,13 +162,13 @@ class RubyGemsTests(unittest.TestCase):
 
     @fixture({'recipe': {
         'gems': 'sass',
-        'url': 'https://rubygems.org/rubygems/rubygems-1.0.zip',
+        'url': 'https://rubygems.org/rubygems/rubygems-2.0.0.zip',
     }})
     def test_version_from_url(self, path, patches, buildout, name, options):
         recipe = rubygems.Recipe(buildout, name, options)
         recipe.install()
 
-    @fixture({'recipe': {'gems': 'sass', 'version': '1.0'}})
+    @fixture({'recipe': {'gems': 'sass', 'version': '2.0.0'}})
     def test_version(self, path, patches, buildout, name, options):
         recipe = rubygems.Recipe(buildout, name, options)
         recipe.install()