Merge pull request #632 from pre-commit/small_cleanups

Small cleanups

pre_commit/clientlib.py

@@ -10,7 +10,7 @@ from identify.identify import ALL_TAGS
 
 import pre_commit.constants as C
 from pre_commit import schema
-from pre_commit.errors import FatalError
+from pre_commit.error_handler import FatalError
 from pre_commit.languages.all import all_languages
 
 
@@ -51,8 +51,7 @@ MANIFEST_HOOK_DICT = schema.Map(
         '',
     ),
     schema.Optional(
-        'exclude',
-        schema.check_and(schema.check_string, schema.check_regex),
+        'exclude', schema.check_and(schema.check_string, schema.check_regex),
         '^$',
     ),
     schema.Optional('types', schema.check_array(check_type_tag), ['file']),

pre_commit/color.py

@@ -47,7 +47,4 @@ def use_color(setting):
     if setting not in COLOR_CHOICES:
         raise InvalidColorSetting(setting)
 
-    return (
-        setting == 'always' or
-        (setting == 'auto' and sys.stdout.isatty())
-    )
+    return setting == 'always' or (setting == 'auto' and sys.stdout.isatty())

pre_commit/color_windows.py

@@ -1,3 +1,4 @@
+from __future__ import absolute_import
 from __future__ import unicode_literals
 
 from ctypes import POINTER
@@ -19,8 +20,7 @@ def bool_errcheck(result, func, args):
 
 
 GetStdHandle = WINFUNCTYPE(HANDLE, DWORD)(
-    ("GetStdHandle", windll.kernel32),
-    ((1, "nStdHandle"), ),
+    ("GetStdHandle", windll.kernel32), ((1, "nStdHandle"),),
 )
 
 GetConsoleMode = WINFUNCTYPE(BOOL, HANDLE, POINTER(DWORD))(
@@ -42,7 +42,6 @@ def enable_virtual_terminal_processing():
 
     More info on the escape sequences supported:
     https://msdn.microsoft.com/en-us/library/windows/desktop/mt638032(v=vs.85).aspx
-
     """
     stdout = GetStdHandle(STD_OUTPUT_HANDLE)
     flags = GetConsoleMode(stdout)

pre_commit/commands/run.py

@@ -32,8 +32,7 @@ def _get_skips(environ):
 
 def _hook_msg_start(hook, verbose):
     return '{}{}'.format(
-        '[{}] '.format(hook['id']) if verbose else '',
-        hook['name'],
+        '[{}] '.format(hook['id']) if verbose else '', hook['name'],
     )
 
 
@@ -99,8 +98,7 @@ def _run_single_hook(filenames, hook, repo, args, skips, cols):
         'git', 'diff', '--no-ext-diff', retcode=None, encoding=None,
     )
     retcode, stdout, stderr = repo.run_hook(
-        hook,
-        tuple(filenames) if hook['pass_filenames'] else (),
+        hook, tuple(filenames) if hook['pass_filenames'] else (),
     )
     diff_after = cmd_output(
         'git', 'diff', '--no-ext-diff', retcode=None, encoding=None,

pre_commit/constants.py

@@ -1,3 +1,4 @@
+from __future__ import absolute_import
 from __future__ import unicode_literals
 
 import pkg_resources

pre_commit/envcontext.py

@@ -10,14 +10,12 @@ UNSET = collections.namedtuple('UNSET', ())()
 
 
 Var = collections.namedtuple('Var', ('name', 'default'))
-setattr(Var.__new__, '__defaults__', ('',))
+Var.__new__.__defaults__ = ('',)
 
 
 def format_env(parts, env):
     return ''.join(
-        env.get(part.name, part.default)
-        if isinstance(part, Var)
-        else part
+        env.get(part.name, part.default) if isinstance(part, Var) else part
         for part in parts
     )
 

pre_commit/error_handler.py

@@ -10,10 +10,13 @@ import six
 
 from pre_commit import five
 from pre_commit import output
-from pre_commit.errors import FatalError
 from pre_commit.store import Store
 
 
+class FatalError(RuntimeError):
+    pass
+
+
 def _to_bytes(exc):
     try:
         return bytes(exc)
@@ -46,7 +49,5 @@ def error_handler():
         _log_and_exit('An error has occurred', e, traceback.format_exc())
     except Exception as e:
         _log_and_exit(
-            'An unexpected error has occurred',
-            e,
-            traceback.format_exc(),
+            'An unexpected error has occurred', e, traceback.format_exc(),
         )

pre_commit/errors.py

@@ -1,6 +0,0 @@
-from __future__ import absolute_import
-from __future__ import unicode_literals
-
-
-class FatalError(RuntimeError):
-    pass

pre_commit/file_lock.py

@@ -1,3 +1,6 @@
+from __future__ import absolute_import
+from __future__ import unicode_literals
+
 import contextlib
 import errno
 

pre_commit/five.py

@@ -1,3 +1,4 @@
+from __future__ import absolute_import
 from __future__ import unicode_literals
 
 import six

pre_commit/git.py

@@ -4,7 +4,7 @@ import logging
 import os.path
 import sys
 
-from pre_commit.errors import FatalError
+from pre_commit.error_handler import FatalError
 from pre_commit.util import CalledProcessError
 from pre_commit.util import cmd_output
 
@@ -114,7 +114,6 @@ def check_for_cygwin_mismatch():
                 'These can be installed through the cygwin installer.\n'
                 ' - python {}\n'
                 ' - git {}\n'.format(
-                    exe_type[is_cygwin_python],
-                    exe_type[is_cygwin_git],
+                    exe_type[is_cygwin_python], exe_type[is_cygwin_git],
                 ),
             )

pre_commit/logging_handler.py

@@ -23,12 +23,12 @@ class LoggingHandler(logging.Handler):
 
     def emit(self, record):
         output.write_line(
-            '{}{}'.format(
+            '{} {}'.format(
                 color.format_color(
                     '[{}]'.format(record.levelname),
                     LOG_LEVEL_COLORS[record.levelname],
                     self.use_color,
-                ) + ' ',
+                ),
                 record.getMessage(),
             ),
         )

pre_commit/make_archives.py

@@ -2,12 +2,14 @@ from __future__ import absolute_import
 from __future__ import print_function
 from __future__ import unicode_literals
 
+import argparse
 import os.path
 import tarfile
 
 from pre_commit import output
 from pre_commit.util import cmd_output
 from pre_commit.util import cwd
+from pre_commit.util import resource_filename
 from pre_commit.util import rmtree
 from pre_commit.util import tmpdir
 
@@ -27,11 +29,6 @@ REPOS = (
 )
 
 
-RESOURCES_DIR = os.path.abspath(
-    os.path.join(os.path.dirname(__file__), 'resources'),
-)
-
-
 def make_archive(name, repo, ref, destdir):
     """Makes an archive of a repository in the given destdir.
 
@@ -59,12 +56,15 @@ def make_archive(name, repo, ref, destdir):
     return output_path
 
 
-def main():
+def main(argv=None):
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--dest', default=resource_filename())
+    args = parser.parse_args(argv)
     for archive_name, repo, ref in REPOS:
         output.write_line('Making {}.tar.gz for {}@{}'.format(
             archive_name, repo, ref,
         ))
-        make_archive(archive_name, repo, ref, RESOURCES_DIR)
+        make_archive(archive_name, repo, ref, args.dest)
 
 
 if __name__ == '__main__':

pre_commit/util.py

@@ -93,18 +93,16 @@ def tmpdir():
         rmtree(tempdir)
 
 
-def resource_filename(filename):
+def resource_filename(*segments):
     return pkg_resources.resource_filename(
-        'pre_commit',
-        os.path.join('resources', filename),
+        'pre_commit', os.path.join('resources', *segments),
     )
 
 
 def make_executable(filename):
     original_mode = os.stat(filename).st_mode
     os.chmod(
-        filename,
-        original_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH,
+        filename, original_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH,
     )
 
 

tests/error_handler_test.py

@@ -11,7 +11,6 @@ import mock
 import pytest
 
 from pre_commit import error_handler
-from pre_commit.errors import FatalError
 from testing.util import cmd_output_mocked_pre_commit_home
 
 
@@ -28,7 +27,7 @@ def test_error_handler_no_exception(mocked_log_and_exit):
 
 
 def test_error_handler_fatal_error(mocked_log_and_exit):
-    exc = FatalError('just a test')
+    exc = error_handler.FatalError('just a test')
     with error_handler.error_handler():
         raise exc
 
@@ -46,7 +45,7 @@ def test_error_handler_fatal_error(mocked_log_and_exit):
         r'  File ".+tests.error_handler_test.py", line \d+, '
         r'in test_error_handler_fatal_error\n'
         r'    raise exc\n'
-        r'(pre_commit\.errors\.)?FatalError: just a test\n',
+        r'(pre_commit\.error_handler\.)?FatalError: just a test\n',
         mocked_log_and_exit.call_args[0][2],
     )
 
@@ -77,7 +76,7 @@ def test_error_handler_uncaught_error(mocked_log_and_exit):
 def test_log_and_exit(cap_out, mock_out_store_directory):
     with pytest.raises(SystemExit):
         error_handler._log_and_exit(
-            'msg', FatalError('hai'), "I'm a stacktrace",
+            'msg', error_handler.FatalError('hai'), "I'm a stacktrace",
         )
 
     printed = cap_out.get()

tests/git_test.py

@@ -7,7 +7,7 @@ import os.path
 import pytest
 
 from pre_commit import git
-from pre_commit.errors import FatalError
+from pre_commit.error_handler import FatalError
 from pre_commit.util import cmd_output
 from pre_commit.util import cwd
 from testing.fixtures import git_dir

tests/make_archives_test.py

@@ -4,7 +4,6 @@ from __future__ import unicode_literals
 import os.path
 import tarfile
 
-import mock
 import pytest
 
 from pre_commit import make_archives
@@ -53,12 +52,8 @@ def test_make_archive(tempdir_factory):
 
 @skipif_slowtests_false
 @pytest.mark.integration
-def test_main(tempdir_factory):
-    path = tempdir_factory.get()
-
-    # Don't actually want to make these in the current repo
-    with mock.patch.object(make_archives, 'RESOURCES_DIR', path):
-        make_archives.main()
+def test_main(tmpdir):
+    make_archives.main(('--dest', tmpdir.strpath))
 
     for archive, _, _ in make_archives.REPOS:
-        assert os.path.exists(os.path.join(path, archive + '.tar.gz'))
+        assert tmpdir.join('{}.tar.gz'.format(archive)).exists()