prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  System hooks with spaces in entry are not runnable
  It's pretty reasonable to have a system hook that looks like this:
  
  ```
  -   id: foo
      name: foo
      entry: python -m bar
      language: system
  ```
  
  Currently this fails:
  
  ```
  $ pre-commit run foo --all-files
  foo...................................................Failed
  
  xargs: python -m bar: No such file or directory
  ```
  
  
  </issue>
  <code>
  [start of pre_commit/languages/system.py]
  1 ENVIRONMENT_DIR = None
  2 
  3 
  4 def install_environment(repo_cmd_runner):
  5     """Installation for system type is a noop."""
  6 
  7 
  8 def run_hook(repo_cmd_runner, hook, file_args):
  9     return repo_cmd_runner.run(
  10         ['xargs', hook['entry']] + hook['args'],
  11         # TODO: this is duplicated in pre_commit/languages/helpers.py
  12         stdin='\n'.join(list(file_args) + ['']),
  13         retcode=None,
  14     )
  15
  [end of pre_commit/languages/system.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/pre_commit/languages/system.py b/pre_commit/languages/system.py
  --- a/pre_commit/languages/system.py
  +++ b/pre_commit/languages/system.py
  @@ -1,3 +1,6 @@
  +import shlex
  +
  +
   ENVIRONMENT_DIR = None
   
   
  @@ -7,7 +10,7 @@
   
   def run_hook(repo_cmd_runner, hook, file_args):
       return repo_cmd_runner.run(
  -        ['xargs', hook['entry']] + hook['args'],
  +        ['xargs'] + shlex.split(hook['entry']) + hook['args'],
           # TODO: this is duplicated in pre_commit/languages/helpers.py
           stdin='\n'.join(list(file_args) + ['']),
           retcode=None,
  
verification_info: {"golden_diff": "diff --git a/pre_commit/languages/system.py b/pre_commit/languages/system.py\n--- a/pre_commit/languages/system.py\n+++ b/pre_commit/languages/system.py\n@@ -1,3 +1,6 @@\n+import shlex\n+\n+\n ENVIRONMENT_DIR = None\n \n \n@@ -7,7 +10,7 @@\n \n def run_hook(repo_cmd_runner, hook, file_args):\n     return repo_cmd_runner.run(\n-        ['xargs', hook['entry']] + hook['args'],\n+        ['xargs'] + shlex.split(hook['entry']) + hook['args'],\n         # TODO: this is duplicated in pre_commit/languages/helpers.py\n         stdin='\\n'.join(list(file_args) + ['']),\n         retcode=None,\n", "issue": "System hooks with spaces in entry are not runnable\nIt's pretty reasonable to have a system hook that looks like this:\n\n```\n-   id: foo\n    name: foo\n    entry: python -m bar\n    language: system\n```\n\nCurrently this fails:\n\n```\n$ pre-commit run foo --all-files\nfoo...................................................Failed\n\nxargs: python -m bar: No such file or directory\n```\n\n", "before_files": [{"content": "ENVIRONMENT_DIR = None\n\n\ndef install_environment(repo_cmd_runner):\n    \"\"\"Installation for system type is a noop.\"\"\"\n\n\ndef run_hook(repo_cmd_runner, hook, file_args):\n    return repo_cmd_runner.run(\n        ['xargs', hook['entry']] + hook['args'],\n        # TODO: this is duplicated in pre_commit/languages/helpers.py\n        stdin='\\n'.join(list(file_args) + ['']),\n        retcode=None,\n    )\n", "path": "pre_commit/languages/system.py"}]}