We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Consider using --no-checkout for cloning
I'd assume it is faster...


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `pre_commit/repository.py`
Content:
```
1 
2 import contextlib
3 from plumbum import local
4 
5 import pre_commit.constants as C
6 from pre_commit.clientlib.validate_manifest import validate_manifest
7 from pre_commit.hooks_workspace import in_hooks_workspace
8 from pre_commit.languages.all import languages
9 from pre_commit.util import cached_property
10 
11 
12 class Repository(object):
13     def __init__(self, repo_config):
14         self.repo_config = repo_config
15 
16     @cached_property
17     def repo_url(self):
18         return self.repo_config['repo']
19 
20     @cached_property
21     def sha(self):
22         return self.repo_config['sha']
23 
24     @cached_property
25     def languages(self):
26         return set(filter(None, (
27             hook.get('language') for hook in self.hooks.values()
28         )))
29 
30     @cached_property
31     def hooks(self):
32         return dict(
33             (hook['id'], dict(hook, **self.manifest[hook['id']]))
34             for hook in self.repo_config['hooks']
35         )
36 
37     @cached_property
38     def manifest(self):
39         with self.in_checkout():
40             return dict(
41                 (hook['id'], hook)
42                 for hook in validate_manifest(C.MANIFEST_FILE)
43             )
44 
45     @contextlib.contextmanager
46     def in_checkout(self):
47         with in_hooks_workspace():
48             # SMELL:
49             self.create()
50             with local.cwd(self.sha):
51                 yield
52 
53     def create(self):
54         with in_hooks_workspace():
55             if local.path(self.sha).exists():
56                 # Project already exists, no reason to re-create it
57                 return
58 
59             local['git']['clone', self.repo_url, self.sha]()
60             with self.in_checkout():
61                 local['git']['checkout', self.sha]()
62 
63     def install(self):
64         with self.in_checkout():
65             for language in C.SUPPORTED_LANGUAGES:
66                 if language in self.languages:
67                     languages[language].install_environment()
68 
69     def run_hook(self, hook_id, file_args):
70         with self.in_checkout():
71             hook = self.hooks[hook_id]
72             return languages[hook['language']].run_hook(hook, file_args)
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/pre_commit/repository.py b/pre_commit/repository.py
--- a/pre_commit/repository.py
+++ b/pre_commit/repository.py
@@ -56,7 +56,7 @@
                 # Project already exists, no reason to re-create it
                 return
 
-            local['git']['clone', self.repo_url, self.sha]()
+            local['git']['clone', '--no-checkout', self.repo_url, self.sha]()
             with self.in_checkout():
                 local['git']['checkout', self.sha]()
 
@@ -69,4 +69,4 @@
     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)
\ No newline at end of file
+            return languages[hook['language']].run_hook(hook, file_args)

{"golden_diff": "diff --git a/pre_commit/repository.py b/pre_commit/repository.py\n--- a/pre_commit/repository.py\n+++ b/pre_commit/repository.py\n@@ -56,7 +56,7 @@\n                 # Project already exists, no reason to re-create it\n                 return\n \n-            local['git']['clone', self.repo_url, self.sha]()\n+            local['git']['clone', '--no-checkout', self.repo_url, self.sha]()\n             with self.in_checkout():\n                 local['git']['checkout', self.sha]()\n \n@@ -69,4 +69,4 @@\n     def run_hook(self, hook_id, file_args):\n         with self.in_checkout():\n             hook = self.hooks[hook_id]\n-            return languages[hook['language']].run_hook(hook, file_args)\n\\ No newline at end of file\n+            return languages[hook['language']].run_hook(hook, file_args)\n", "issue": "Consider using --no-checkout for cloning\nI'd assume it is faster...\n\n", "before_files": [{"content": "\nimport contextlib\nfrom plumbum import local\n\nimport pre_commit.constants as C\nfrom pre_commit.clientlib.validate_manifest import validate_manifest\nfrom pre_commit.hooks_workspace import in_hooks_workspace\nfrom pre_commit.languages.all import languages\nfrom pre_commit.util import cached_property\n\n\nclass Repository(object):\n    def __init__(self, repo_config):\n        self.repo_config = repo_config\n\n    @cached_property\n    def repo_url(self):\n        return self.repo_config['repo']\n\n    @cached_property\n    def sha(self):\n        return self.repo_config['sha']\n\n    @cached_property\n    def languages(self):\n        return set(filter(None, (\n            hook.get('language') for hook in self.hooks.values()\n        )))\n\n    @cached_property\n    def hooks(self):\n        return dict(\n            (hook['id'], dict(hook, **self.manifest[hook['id']]))\n            for hook in self.repo_config['hooks']\n        )\n\n    @cached_property\n    def manifest(self):\n        with self.in_checkout():\n            return dict(\n                (hook['id'], hook)\n                for hook in validate_manifest(C.MANIFEST_FILE)\n            )\n\n    @contextlib.contextmanager\n    def in_checkout(self):\n        with in_hooks_workspace():\n            # SMELL:\n            self.create()\n            with local.cwd(self.sha):\n                yield\n\n    def create(self):\n        with in_hooks_workspace():\n            if local.path(self.sha).exists():\n                # Project already exists, no reason to re-create it\n                return\n\n            local['git']['clone', self.repo_url, self.sha]()\n            with self.in_checkout():\n                local['git']['checkout', self.sha]()\n\n    def install(self):\n        with self.in_checkout():\n            for language in C.SUPPORTED_LANGUAGES:\n                if language in self.languages:\n                    languages[language].install_environment()\n\n    def run_hook(self, hook_id, file_args):\n        with self.in_checkout():\n            hook = self.hooks[hook_id]\n            return languages[hook['language']].run_hook(hook, file_args)", "path": "pre_commit/repository.py"}], "after_files": [{"content": "\nimport contextlib\nfrom plumbum import local\n\nimport pre_commit.constants as C\nfrom pre_commit.clientlib.validate_manifest import validate_manifest\nfrom pre_commit.hooks_workspace import in_hooks_workspace\nfrom pre_commit.languages.all import languages\nfrom pre_commit.util import cached_property\n\n\nclass Repository(object):\n    def __init__(self, repo_config):\n        self.repo_config = repo_config\n\n    @cached_property\n    def repo_url(self):\n        return self.repo_config['repo']\n\n    @cached_property\n    def sha(self):\n        return self.repo_config['sha']\n\n    @cached_property\n    def languages(self):\n        return set(filter(None, (\n            hook.get('language') for hook in self.hooks.values()\n        )))\n\n    @cached_property\n    def hooks(self):\n        return dict(\n            (hook['id'], dict(hook, **self.manifest[hook['id']]))\n            for hook in self.repo_config['hooks']\n        )\n\n    @cached_property\n    def manifest(self):\n        with self.in_checkout():\n            return dict(\n                (hook['id'], hook)\n                for hook in validate_manifest(C.MANIFEST_FILE)\n            )\n\n    @contextlib.contextmanager\n    def in_checkout(self):\n        with in_hooks_workspace():\n            # SMELL:\n            self.create()\n            with local.cwd(self.sha):\n                yield\n\n    def create(self):\n        with in_hooks_workspace():\n            if local.path(self.sha).exists():\n                # Project already exists, no reason to re-create it\n                return\n\n            local['git']['clone', '--no-checkout', self.repo_url, self.sha]()\n            with self.in_checkout():\n                local['git']['checkout', self.sha]()\n\n    def install(self):\n        with self.in_checkout():\n            for language in C.SUPPORTED_LANGUAGES:\n                if language in self.languages:\n                    languages[language].install_environment()\n\n    def run_hook(self, hook_id, file_args):\n        with self.in_checkout():\n            hook = self.hooks[hook_id]\n            return languages[hook['language']].run_hook(hook, file_args)\n", "path": "pre_commit/repository.py"}]}