OMG we're running a hook

pre_commit/repository.py

@@ -5,30 +5,10 @@ from plumbum import local
 import pre_commit.constants as C
 from pre_commit.clientlib.validate_manifest import validate_manifest
 from pre_commit.hooks_workspace import in_hooks_workspace
+from pre_commit.languages.all import languages
 from pre_commit.util import cached_property
 
 
-def install_python(repo):
-    assert local.path('setup.py').exists()
-    local['virtualenv']['py_env']()
-    local['bash']['-c', 'source py_env/bin/activate && pip install .']()
-
-
-def install_ruby(repo):
-    raise NotImplementedError
-
-
-def install_node(repo):
-    raise NotImplementedError
-
-
-language_to_repo_setup_strategy = {
-    'python': install_python,
-    'ruby': install_ruby,
-    'node': install_node,
-}
-
-
 class Repository(object):
     def __init__(self, repo_config):
         self.repo_config = repo_config
@@ -84,4 +64,9 @@ class Repository(object):
         with self.in_checkout():
             for language in C.SUPPORTED_LANGUAGES:
                 if language in self.languages:
-                    language_to_repo_setup_strategy[language](self)
+                    languages[language].install_environment()
+
+    def run_hook(self, hook_id, file_args):
+        with self.in_checkout():
+            hook = self.hooks[hook_id]
+            return languages[hook['language']].run_hook(hook, file_args)