Format codebase with black and check formatting in CQ

Apply rules set by https://gerrit-review.googlesource.com/c/git-repo/+/362954/ across the codebase and fix any lingering errors caught
by flake8. Also check black formatting in run_tests (and CQ).

Bug: b/267675342
Change-Id: I972d77649dac351150dcfeb1cd1ad0ea2efc1956
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/363474
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Gavin Mak <gavinmak@google.com>
Commit-Queue: Gavin Mak <gavinmak@google.com>

1 files changed, 448 insertions, 407 deletions

diff --git a/tests/test_project.py b/tests/test_project.py
index c50d9940..bc8330b2 100644
--- a/tests/test_project.py
+++ b/tests/test_project.py
@@ -31,452 +31,493 @@ import project
 
 @contextlib.contextmanager
 def TempGitTree():
-  """Create a new empty git checkout for testing."""
-  with tempfile.TemporaryDirectory(prefix='repo-tests') as tempdir:
-    # Tests need to assume, that main is default branch at init,
-    # which is not supported in config until 2.28.
-    cmd = ['git', 'init']
-    if git_command.git_require((2, 28, 0)):
-      cmd += ['--initial-branch=main']
-    else:
-      # Use template dir for init.
-      templatedir = tempfile.mkdtemp(prefix='.test-template')
-      with open(os.path.join(templatedir, 'HEAD'), 'w') as fp:
-        fp.write('ref: refs/heads/main\n')
-      cmd += ['--template', templatedir]
-    subprocess.check_call(cmd, cwd=tempdir)
-    yield tempdir
+    """Create a new empty git checkout for testing."""
+    with tempfile.TemporaryDirectory(prefix="repo-tests") as tempdir:
+        # Tests need to assume, that main is default branch at init,
+        # which is not supported in config until 2.28.
+        cmd = ["git", "init"]
+        if git_command.git_require((2, 28, 0)):
+            cmd += ["--initial-branch=main"]
+        else:
+            # Use template dir for init.
+            templatedir = tempfile.mkdtemp(prefix=".test-template")
+            with open(os.path.join(templatedir, "HEAD"), "w") as fp:
+                fp.write("ref: refs/heads/main\n")
+            cmd += ["--template", templatedir]
+        subprocess.check_call(cmd, cwd=tempdir)
+        yield tempdir
 
 
 class FakeProject(object):
-  """A fake for Project for basic functionality."""
+    """A fake for Project for basic functionality."""
 
-  def __init__(self, worktree):
-    self.worktree = worktree
-    self.gitdir = os.path.join(worktree, '.git')
-    self.name = 'fakeproject'
-    self.work_git = project.Project._GitGetByExec(
-        self, bare=False, gitdir=self.gitdir)
-    self.bare_git = project.Project._GitGetByExec(
-        self, bare=True, gitdir=self.gitdir)
-    self.config = git_config.GitConfig.ForRepository(gitdir=self.gitdir)
+    def __init__(self, worktree):
+        self.worktree = worktree
+        self.gitdir = os.path.join(worktree, ".git")
+        self.name = "fakeproject"
+        self.work_git = project.Project._GitGetByExec(
+            self, bare=False, gitdir=self.gitdir
+        )
+        self.bare_git = project.Project._GitGetByExec(
+            self, bare=True, gitdir=self.gitdir
+        )
+        self.config = git_config.GitConfig.ForRepository(gitdir=self.gitdir)
 
 
 class ReviewableBranchTests(unittest.TestCase):
-  """Check ReviewableBranch behavior."""
-
-  def test_smoke(self):
-    """A quick run through everything."""
-    with TempGitTree() as tempdir:
-      fakeproj = FakeProject(tempdir)
-
-      # Generate some commits.
-      with open(os.path.join(tempdir, 'readme'), 'w') as fp:
-        fp.write('txt')
-      fakeproj.work_git.add('readme')
-      fakeproj.work_git.commit('-mAdd file')
-      fakeproj.work_git.checkout('-b', 'work')
-      fakeproj.work_git.rm('-f', 'readme')
-      fakeproj.work_git.commit('-mDel file')
-
-      # Start off with the normal details.
-      rb = project.ReviewableBranch(
-          fakeproj, fakeproj.config.GetBranch('work'), 'main')
-      self.assertEqual('work', rb.name)
-      self.assertEqual(1, len(rb.commits))
-      self.assertIn('Del file', rb.commits[0])
-      d = rb.unabbrev_commits
-      self.assertEqual(1, len(d))
-      short, long = next(iter(d.items()))
-      self.assertTrue(long.startswith(short))
-      self.assertTrue(rb.base_exists)
-      # Hard to assert anything useful about this.
-      self.assertTrue(rb.date)
-
-      # Now delete the tracking branch!
-      fakeproj.work_git.branch('-D', 'main')
-      rb = project.ReviewableBranch(
-          fakeproj, fakeproj.config.GetBranch('work'), 'main')
-      self.assertEqual(0, len(rb.commits))
-      self.assertFalse(rb.base_exists)
-      # Hard to assert anything useful about this.
-      self.assertTrue(rb.date)
+    """Check ReviewableBranch behavior."""
+
+    def test_smoke(self):
+        """A quick run through everything."""
+        with TempGitTree() as tempdir:
+            fakeproj = FakeProject(tempdir)
+
+            # Generate some commits.
+            with open(os.path.join(tempdir, "readme"), "w") as fp:
+                fp.write("txt")
+            fakeproj.work_git.add("readme")
+            fakeproj.work_git.commit("-mAdd file")
+            fakeproj.work_git.checkout("-b", "work")
+            fakeproj.work_git.rm("-f", "readme")
+            fakeproj.work_git.commit("-mDel file")
+
+            # Start off with the normal details.
+            rb = project.ReviewableBranch(
+                fakeproj, fakeproj.config.GetBranch("work"), "main"
+            )
+            self.assertEqual("work", rb.name)
+            self.assertEqual(1, len(rb.commits))
+            self.assertIn("Del file", rb.commits[0])
+            d = rb.unabbrev_commits
+            self.assertEqual(1, len(d))
+            short, long = next(iter(d.items()))
+            self.assertTrue(long.startswith(short))
+            self.assertTrue(rb.base_exists)
+            # Hard to assert anything useful about this.
+            self.assertTrue(rb.date)
+
+            # Now delete the tracking branch!
+            fakeproj.work_git.branch("-D", "main")
+            rb = project.ReviewableBranch(
+                fakeproj, fakeproj.config.GetBranch("work"), "main"
+            )
+            self.assertEqual(0, len(rb.commits))
+            self.assertFalse(rb.base_exists)
+            # Hard to assert anything useful about this.
+            self.assertTrue(rb.date)
 
 
 class CopyLinkTestCase(unittest.TestCase):
-  """TestCase for stub repo client checkouts.
-
-  It'll have a layout like this:
-    tempdir/          # self.tempdir
-      checkout/       # self.topdir
-        git-project/  # self.worktree
-
-  Attributes:
-    tempdir: A dedicated temporary directory.
-    worktree: The top of the repo client checkout.
-    topdir: The top of a project checkout.
-  """
-
-  def setUp(self):
-    self.tempdirobj = tempfile.TemporaryDirectory(prefix='repo_tests')
-    self.tempdir = self.tempdirobj.name
-    self.topdir = os.path.join(self.tempdir, 'checkout')
-    self.worktree = os.path.join(self.topdir, 'git-project')
-    os.makedirs(self.topdir)
-    os.makedirs(self.worktree)
-
-  def tearDown(self):
-    self.tempdirobj.cleanup()
-
-  @staticmethod
-  def touch(path):
-    with open(path, 'w'):
-      pass
-
-  def assertExists(self, path, msg=None):
-    """Make sure |path| exists."""
-    if os.path.exists(path):
-      return
-
-    if msg is None:
-      msg = ['path is missing: %s' % path]
-      while path != '/':
-        path = os.path.dirname(path)
-        if not path:
-          # If we're given something like "foo", abort once we get to "".
-          break
-        result = os.path.exists(path)
-        msg.append('\tos.path.exists(%s): %s' % (path, result))
-        if result:
-          msg.append('\tcontents: %r' % os.listdir(path))
-          break
-      msg = '\n'.join(msg)
-
-    raise self.failureException(msg)
+    """TestCase for stub repo client checkouts.
+
+    It'll have a layout like this:
+      tempdir/          # self.tempdir
+        checkout/       # self.topdir
+          git-project/  # self.worktree
+
+    Attributes:
+      tempdir: A dedicated temporary directory.
+      worktree: The top of the repo client checkout.
+      topdir: The top of a project checkout.
+    """
+
+    def setUp(self):
+        self.tempdirobj = tempfile.TemporaryDirectory(prefix="repo_tests")
+        self.tempdir = self.tempdirobj.name
+        self.topdir = os.path.join(self.tempdir, "checkout")
+        self.worktree = os.path.join(self.topdir, "git-project")
+        os.makedirs(self.topdir)
+        os.makedirs(self.worktree)
+
+    def tearDown(self):
+        self.tempdirobj.cleanup()
+
+    @staticmethod
+    def touch(path):
+        with open(path, "w"):
+            pass
+
+    def assertExists(self, path, msg=None):
+        """Make sure |path| exists."""
+        if os.path.exists(path):
+            return
+
+        if msg is None:
+            msg = ["path is missing: %s" % path]
+            while path != "/":
+                path = os.path.dirname(path)
+                if not path:
+                    # If we're given something like "foo", abort once we get to
+                    # "".
+                    break
+                result = os.path.exists(path)
+                msg.append("\tos.path.exists(%s): %s" % (path, result))
+                if result:
+                    msg.append("\tcontents: %r" % os.listdir(path))
+                    break
+            msg = "\n".join(msg)
+
+        raise self.failureException(msg)
 
 
 class CopyFile(CopyLinkTestCase):
-  """Check _CopyFile handling."""
-
-  def CopyFile(self, src, dest):
-    return project._CopyFile(self.worktree, src, self.topdir, dest)
-
-  def test_basic(self):
-    """Basic test of copying a file from a project to the toplevel."""
-    src = os.path.join(self.worktree, 'foo.txt')
-    self.touch(src)
-    cf = self.CopyFile('foo.txt', 'foo')
-    cf._Copy()
-    self.assertExists(os.path.join(self.topdir, 'foo'))
-
-  def test_src_subdir(self):
-    """Copy a file from a subdir of a project."""
-    src = os.path.join(self.worktree, 'bar', 'foo.txt')
-    os.makedirs(os.path.dirname(src))
-    self.touch(src)
-    cf = self.CopyFile('bar/foo.txt', 'new.txt')
-    cf._Copy()
-    self.assertExists(os.path.join(self.topdir, 'new.txt'))
-
-  def test_dest_subdir(self):
-    """Copy a file to a subdir of a checkout."""
-    src = os.path.join(self.worktree, 'foo.txt')
-    self.touch(src)
-    cf = self.CopyFile('foo.txt', 'sub/dir/new.txt')
-    self.assertFalse(os.path.exists(os.path.join(self.topdir, 'sub')))
-    cf._Copy()
-    self.assertExists(os.path.join(self.topdir, 'sub', 'dir', 'new.txt'))
-
-  def test_update(self):
-    """Make sure changed files get copied again."""
-    src = os.path.join(self.worktree, 'foo.txt')
-    dest = os.path.join(self.topdir, 'bar')
-    with open(src, 'w') as f:
-      f.write('1st')
-    cf = self.CopyFile('foo.txt', 'bar')
-    cf._Copy()
-    self.assertExists(dest)
-    with open(dest) as f:
-      self.assertEqual(f.read(), '1st')
-
-    with open(src, 'w') as f:
-      f.write('2nd!')
-    cf._Copy()
-    with open(dest) as f:
-      self.assertEqual(f.read(), '2nd!')
-
-  def test_src_block_symlink(self):
-    """Do not allow reading from a symlinked path."""
-    src = os.path.join(self.worktree, 'foo.txt')
-    sym = os.path.join(self.worktree, 'sym')
-    self.touch(src)
-    platform_utils.symlink('foo.txt', sym)
-    self.assertExists(sym)
-    cf = self.CopyFile('sym', 'foo')
-    self.assertRaises(error.ManifestInvalidPathError, cf._Copy)
-
-  def test_src_block_symlink_traversal(self):
-    """Do not allow reading through a symlink dir."""
-    realfile = os.path.join(self.tempdir, 'file.txt')
-    self.touch(realfile)
-    src = os.path.join(self.worktree, 'bar', 'file.txt')
-    platform_utils.symlink(self.tempdir, os.path.join(self.worktree, 'bar'))
-    self.assertExists(src)
-    cf = self.CopyFile('bar/file.txt', 'foo')
-    self.assertRaises(error.ManifestInvalidPathError, cf._Copy)
-
-  def test_src_block_copy_from_dir(self):
-    """Do not allow copying from a directory."""
-    src = os.path.join(self.worktree, 'dir')
-    os.makedirs(src)
-    cf = self.CopyFile('dir', 'foo')
-    self.assertRaises(error.ManifestInvalidPathError, cf._Copy)
-
-  def test_dest_block_symlink(self):
-    """Do not allow writing to a symlink."""
-    src = os.path.join(self.worktree, 'foo.txt')
-    self.touch(src)
-    platform_utils.symlink('dest', os.path.join(self.topdir, 'sym'))
-    cf = self.CopyFile('foo.txt', 'sym')
-    self.assertRaises(error.ManifestInvalidPathError, cf._Copy)
-
-  def test_dest_block_symlink_traversal(self):
-    """Do not allow writing through a symlink dir."""
-    src = os.path.join(self.worktree, 'foo.txt')
-    self.touch(src)
-    platform_utils.symlink(tempfile.gettempdir(),
-                           os.path.join(self.topdir, 'sym'))
-    cf = self.CopyFile('foo.txt', 'sym/foo.txt')
-    self.assertRaises(error.ManifestInvalidPathError, cf._Copy)
-
-  def test_src_block_copy_to_dir(self):
-    """Do not allow copying to a directory."""
-    src = os.path.join(self.worktree, 'foo.txt')
-    self.touch(src)
-    os.makedirs(os.path.join(self.topdir, 'dir'))
-    cf = self.CopyFile('foo.txt', 'dir')
-    self.assertRaises(error.ManifestInvalidPathError, cf._Copy)
+    """Check _CopyFile handling."""
+
+    def CopyFile(self, src, dest):
+        return project._CopyFile(self.worktree, src, self.topdir, dest)
+
+    def test_basic(self):
+        """Basic test of copying a file from a project to the toplevel."""
+        src = os.path.join(self.worktree, "foo.txt")
+        self.touch(src)
+        cf = self.CopyFile("foo.txt", "foo")
+        cf._Copy()
+        self.assertExists(os.path.join(self.topdir, "foo"))
+
+    def test_src_subdir(self):
+        """Copy a file from a subdir of a project."""
+        src = os.path.join(self.worktree, "bar", "foo.txt")
+        os.makedirs(os.path.dirname(src))
+        self.touch(src)
+        cf = self.CopyFile("bar/foo.txt", "new.txt")
+        cf._Copy()
+        self.assertExists(os.path.join(self.topdir, "new.txt"))
+
+    def test_dest_subdir(self):
+        """Copy a file to a subdir of a checkout."""
+        src = os.path.join(self.worktree, "foo.txt")
+        self.touch(src)
+        cf = self.CopyFile("foo.txt", "sub/dir/new.txt")
+        self.assertFalse(os.path.exists(os.path.join(self.topdir, "sub")))
+        cf._Copy()
+        self.assertExists(os.path.join(self.topdir, "sub", "dir", "new.txt"))
+
+    def test_update(self):
+        """Make sure changed files get copied again."""
+        src = os.path.join(self.worktree, "foo.txt")
+        dest = os.path.join(self.topdir, "bar")
+        with open(src, "w") as f:
+            f.write("1st")
+        cf = self.CopyFile("foo.txt", "bar")
+        cf._Copy()
+        self.assertExists(dest)
+        with open(dest) as f:
+            self.assertEqual(f.read(), "1st")
+
+        with open(src, "w") as f:
+            f.write("2nd!")
+        cf._Copy()
+        with open(dest) as f:
+            self.assertEqual(f.read(), "2nd!")
+
+    def test_src_block_symlink(self):
+        """Do not allow reading from a symlinked path."""
+        src = os.path.join(self.worktree, "foo.txt")
+        sym = os.path.join(self.worktree, "sym")
+        self.touch(src)
+        platform_utils.symlink("foo.txt", sym)
+        self.assertExists(sym)
+        cf = self.CopyFile("sym", "foo")
+        self.assertRaises(error.ManifestInvalidPathError, cf._Copy)
+
+    def test_src_block_symlink_traversal(self):
+        """Do not allow reading through a symlink dir."""
+        realfile = os.path.join(self.tempdir, "file.txt")
+        self.touch(realfile)
+        src = os.path.join(self.worktree, "bar", "file.txt")
+        platform_utils.symlink(self.tempdir, os.path.join(self.worktree, "bar"))
+        self.assertExists(src)
+        cf = self.CopyFile("bar/file.txt", "foo")
+        self.assertRaises(error.ManifestInvalidPathError, cf._Copy)
+
+    def test_src_block_copy_from_dir(self):
+        """Do not allow copying from a directory."""
+        src = os.path.join(self.worktree, "dir")
+        os.makedirs(src)
+        cf = self.CopyFile("dir", "foo")
+        self.assertRaises(error.ManifestInvalidPathError, cf._Copy)
+
+    def test_dest_block_symlink(self):
+        """Do not allow writing to a symlink."""
+        src = os.path.join(self.worktree, "foo.txt")
+        self.touch(src)
+        platform_utils.symlink("dest", os.path.join(self.topdir, "sym"))
+        cf = self.CopyFile("foo.txt", "sym")
+        self.assertRaises(error.ManifestInvalidPathError, cf._Copy)
+
+    def test_dest_block_symlink_traversal(self):
+        """Do not allow writing through a symlink dir."""
+        src = os.path.join(self.worktree, "foo.txt")
+        self.touch(src)
+        platform_utils.symlink(
+            tempfile.gettempdir(), os.path.join(self.topdir, "sym")
+        )
+        cf = self.CopyFile("foo.txt", "sym/foo.txt")
+        self.assertRaises(error.ManifestInvalidPathError, cf._Copy)
+
+    def test_src_block_copy_to_dir(self):
+        """Do not allow copying to a directory."""
+        src = os.path.join(self.worktree, "foo.txt")
+        self.touch(src)
+        os.makedirs(os.path.join(self.topdir, "dir"))
+        cf = self.CopyFile("foo.txt", "dir")
+        self.assertRaises(error.ManifestInvalidPathError, cf._Copy)
 
 
 class LinkFile(CopyLinkTestCase):
-  """Check _LinkFile handling."""
-
-  def LinkFile(self, src, dest):
-    return project._LinkFile(self.worktree, src, self.topdir, dest)
-
-  def test_basic(self):
-    """Basic test of linking a file from a project into the toplevel."""
-    src = os.path.join(self.worktree, 'foo.txt')
-    self.touch(src)
-    lf = self.LinkFile('foo.txt', 'foo')
-    lf._Link()
-    dest = os.path.join(self.topdir, 'foo')
-    self.assertExists(dest)
-    self.assertTrue(os.path.islink(dest))
-    self.assertEqual(os.path.join('git-project', 'foo.txt'), os.readlink(dest))
-
-  def test_src_subdir(self):
-    """Link to a file in a subdir of a project."""
-    src = os.path.join(self.worktree, 'bar', 'foo.txt')
-    os.makedirs(os.path.dirname(src))
-    self.touch(src)
-    lf = self.LinkFile('bar/foo.txt', 'foo')
-    lf._Link()
-    self.assertExists(os.path.join(self.topdir, 'foo'))
-
-  def test_src_self(self):
-    """Link to the project itself."""
-    dest = os.path.join(self.topdir, 'foo', 'bar')
-    lf = self.LinkFile('.', 'foo/bar')
-    lf._Link()
-    self.assertExists(dest)
-    self.assertEqual(os.path.join('..', 'git-project'), os.readlink(dest))
-
-  def test_dest_subdir(self):
-    """Link a file to a subdir of a checkout."""
-    src = os.path.join(self.worktree, 'foo.txt')
-    self.touch(src)
-    lf = self.LinkFile('foo.txt', 'sub/dir/foo/bar')
-    self.assertFalse(os.path.exists(os.path.join(self.topdir, 'sub')))
-    lf._Link()
-    self.assertExists(os.path.join(self.topdir, 'sub', 'dir', 'foo', 'bar'))
-
-  def test_src_block_relative(self):
-    """Do not allow relative symlinks."""
-    BAD_SOURCES = (
-        './',
-        '..',
-        '../',
-        'foo/.',
-        'foo/./bar',
-        'foo/..',
-        'foo/../foo',
-    )
-    for src in BAD_SOURCES:
-      lf = self.LinkFile(src, 'foo')
-      self.assertRaises(error.ManifestInvalidPathError, lf._Link)
-
-  def test_update(self):
-    """Make sure changed targets get updated."""
-    dest = os.path.join(self.topdir, 'sym')
-
-    src = os.path.join(self.worktree, 'foo.txt')
-    self.touch(src)
-    lf = self.LinkFile('foo.txt', 'sym')
-    lf._Link()
-    self.assertEqual(os.path.join('git-project', 'foo.txt'), os.readlink(dest))
-
-    # Point the symlink somewhere else.
-    os.unlink(dest)
-    platform_utils.symlink(self.tempdir, dest)
-    lf._Link()
-    self.assertEqual(os.path.join('git-project', 'foo.txt'), os.readlink(dest))
+    """Check _LinkFile handling."""
+
+    def LinkFile(self, src, dest):
+        return project._LinkFile(self.worktree, src, self.topdir, dest)
+
+    def test_basic(self):
+        """Basic test of linking a file from a project into the toplevel."""
+        src = os.path.join(self.worktree, "foo.txt")
+        self.touch(src)
+        lf = self.LinkFile("foo.txt", "foo")
+        lf._Link()
+        dest = os.path.join(self.topdir, "foo")
+        self.assertExists(dest)
+        self.assertTrue(os.path.islink(dest))
+        self.assertEqual(
+            os.path.join("git-project", "foo.txt"), os.readlink(dest)
+        )
+
+    def test_src_subdir(self):
+        """Link to a file in a subdir of a project."""
+        src = os.path.join(self.worktree, "bar", "foo.txt")
+        os.makedirs(os.path.dirname(src))
+        self.touch(src)
+        lf = self.LinkFile("bar/foo.txt", "foo")
+        lf._Link()
+        self.assertExists(os.path.join(self.topdir, "foo"))
+
+    def test_src_self(self):
+        """Link to the project itself."""
+        dest = os.path.join(self.topdir, "foo", "bar")
+        lf = self.LinkFile(".", "foo/bar")
+        lf._Link()
+        self.assertExists(dest)
+        self.assertEqual(os.path.join("..", "git-project"), os.readlink(dest))
+
+    def test_dest_subdir(self):
+        """Link a file to a subdir of a checkout."""
+        src = os.path.join(self.worktree, "foo.txt")
+        self.touch(src)
+        lf = self.LinkFile("foo.txt", "sub/dir/foo/bar")
+        self.assertFalse(os.path.exists(os.path.join(self.topdir, "sub")))
+        lf._Link()
+        self.assertExists(os.path.join(self.topdir, "sub", "dir", "foo", "bar"))
+
+    def test_src_block_relative(self):
+        """Do not allow relative symlinks."""
+        BAD_SOURCES = (
+            "./",
+            "..",
+            "../",
+            "foo/.",
+            "foo/./bar",
+            "foo/..",
+            "foo/../foo",
+        )
+        for src in BAD_SOURCES:
+            lf = self.LinkFile(src, "foo")
+            self.assertRaises(error.ManifestInvalidPathError, lf._Link)
+
+    def test_update(self):
+        """Make sure changed targets get updated."""
+        dest = os.path.join(self.topdir, "sym")
+
+        src = os.path.join(self.worktree, "foo.txt")
+        self.touch(src)
+        lf = self.LinkFile("foo.txt", "sym")
+        lf._Link()
+        self.assertEqual(
+            os.path.join("git-project", "foo.txt"), os.readlink(dest)
+        )
+
+        # Point the symlink somewhere else.
+        os.unlink(dest)
+        platform_utils.symlink(self.tempdir, dest)
+        lf._Link()
+        self.assertEqual(
+            os.path.join("git-project", "foo.txt"), os.readlink(dest)
+        )
 
 
 class MigrateWorkTreeTests(unittest.TestCase):
-  """Check _MigrateOldWorkTreeGitDir handling."""
-
-  _SYMLINKS = {
-      'config', 'description', 'hooks', 'info', 'logs', 'objects',
-      'packed-refs', 'refs', 'rr-cache', 'shallow', 'svn',
-  }
-  _FILES = {
-      'COMMIT_EDITMSG', 'FETCH_HEAD', 'HEAD', 'index', 'ORIG_HEAD',
-      'unknown-file-should-be-migrated',
-  }
-  _CLEAN_FILES = {
-      'a-vim-temp-file~', '#an-emacs-temp-file#',
-  }
-
-  @classmethod
-  @contextlib.contextmanager
-  def _simple_layout(cls):
-    """Create a simple repo client checkout to test against."""
-    with tempfile.TemporaryDirectory() as tempdir:
-      tempdir = Path(tempdir)
-
-      gitdir = tempdir / '.repo/projects/src/test.git'
-      gitdir.mkdir(parents=True)
-      cmd = ['git', 'init', '--bare', str(gitdir)]
-      subprocess.check_call(cmd)
-
-      dotgit = tempdir / 'src/test/.git'
-      dotgit.mkdir(parents=True)
-      for name in cls._SYMLINKS:
-        (dotgit / name).symlink_to(f'../../../.repo/projects/src/test.git/{name}')
-      for name in cls._FILES | cls._CLEAN_FILES:
-        (dotgit / name).write_text(name)
-
-      yield tempdir
-
-  def test_standard(self):
-    """Migrate a standard checkout that we expect."""
-    with self._simple_layout() as tempdir:
-      dotgit = tempdir / 'src/test/.git'
-      project.Project._MigrateOldWorkTreeGitDir(str(dotgit))
-
-      # Make sure the dir was transformed into a symlink.
-      self.assertTrue(dotgit.is_symlink())
-      self.assertEqual(os.readlink(dotgit), os.path.normpath('../../.repo/projects/src/test.git'))
-
-      # Make sure files were moved over.
-      gitdir = tempdir / '.repo/projects/src/test.git'
-      for name in self._FILES:
-        self.assertEqual(name, (gitdir / name).read_text())
-      # Make sure files were removed.
-      for name in self._CLEAN_FILES:
-        self.assertFalse((gitdir / name).exists())
-
-  def test_unknown(self):
-    """A checkout with unknown files should abort."""
-    with self._simple_layout() as tempdir:
-      dotgit = tempdir / 'src/test/.git'
-      (tempdir / '.repo/projects/src/test.git/random-file').write_text('one')
-      (dotgit / 'random-file').write_text('two')
-      with self.assertRaises(error.GitError):
-        project.Project._MigrateOldWorkTreeGitDir(str(dotgit))
-
-      # Make sure no content was actually changed.
-      self.assertTrue(dotgit.is_dir())
-      for name in self._FILES:
-        self.assertTrue((dotgit / name).is_file())
-      for name in self._CLEAN_FILES:
-        self.assertTrue((dotgit / name).is_file())
-      for name in self._SYMLINKS:
-        self.assertTrue((dotgit / name).is_symlink())
+    """Check _MigrateOldWorkTreeGitDir handling."""
+
+    _SYMLINKS = {
+        "config",
+        "description",
+        "hooks",
+        "info",
+        "logs",
+        "objects",
+        "packed-refs",
+        "refs",
+        "rr-cache",
+        "shallow",
+        "svn",
+    }
+    _FILES = {
+        "COMMIT_EDITMSG",
+        "FETCH_HEAD",
+        "HEAD",
+        "index",
+        "ORIG_HEAD",
+        "unknown-file-should-be-migrated",
+    }
+    _CLEAN_FILES = {
+        "a-vim-temp-file~",
+        "#an-emacs-temp-file#",
+    }
+
+    @classmethod
+    @contextlib.contextmanager
+    def _simple_layout(cls):
+        """Create a simple repo client checkout to test against."""
+        with tempfile.TemporaryDirectory() as tempdir:
+            tempdir = Path(tempdir)
+
+            gitdir = tempdir / ".repo/projects/src/test.git"
+            gitdir.mkdir(parents=True)
+            cmd = ["git", "init", "--bare", str(gitdir)]
+            subprocess.check_call(cmd)
+
+            dotgit = tempdir / "src/test/.git"
+            dotgit.mkdir(parents=True)
+            for name in cls._SYMLINKS:
+                (dotgit / name).symlink_to(
+                    f"../../../.repo/projects/src/test.git/{name}"
+                )
+            for name in cls._FILES | cls._CLEAN_FILES:
+                (dotgit / name).write_text(name)
+
+            yield tempdir
+
+    def test_standard(self):
+        """Migrate a standard checkout that we expect."""
+        with self._simple_layout() as tempdir:
+            dotgit = tempdir / "src/test/.git"
+            project.Project._MigrateOldWorkTreeGitDir(str(dotgit))
+
+            # Make sure the dir was transformed into a symlink.
+            self.assertTrue(dotgit.is_symlink())
+            self.assertEqual(
+                os.readlink(dotgit),
+                os.path.normpath("../../.repo/projects/src/test.git"),
+            )
+
+            # Make sure files were moved over.
+            gitdir = tempdir / ".repo/projects/src/test.git"
+            for name in self._FILES:
+                self.assertEqual(name, (gitdir / name).read_text())
+            # Make sure files were removed.
+            for name in self._CLEAN_FILES:
+                self.assertFalse((gitdir / name).exists())
+
+    def test_unknown(self):
+        """A checkout with unknown files should abort."""
+        with self._simple_layout() as tempdir:
+            dotgit = tempdir / "src/test/.git"
+            (tempdir / ".repo/projects/src/test.git/random-file").write_text(
+                "one"
+            )
+            (dotgit / "random-file").write_text("two")
+            with self.assertRaises(error.GitError):
+                project.Project._MigrateOldWorkTreeGitDir(str(dotgit))
+
+            # Make sure no content was actually changed.
+            self.assertTrue(dotgit.is_dir())
+            for name in self._FILES:
+                self.assertTrue((dotgit / name).is_file())
+            for name in self._CLEAN_FILES:
+                self.assertTrue((dotgit / name).is_file())
+            for name in self._SYMLINKS:
+                self.assertTrue((dotgit / name).is_symlink())
 
 
 class ManifestPropertiesFetchedCorrectly(unittest.TestCase):
-  """Ensure properties are fetched properly."""
+    """Ensure properties are fetched properly."""
 
-  def setUpManifest(self, tempdir):
-    repodir = os.path.join(tempdir, '.repo')
-    manifest_dir = os.path.join(repodir, 'manifests')
-    manifest_file = os.path.join(
-        repodir, manifest_xml.MANIFEST_FILE_NAME)
-    local_manifest_dir = os.path.join(
-        repodir, manifest_xml.LOCAL_MANIFESTS_DIR_NAME)
-    os.mkdir(repodir)
-    os.mkdir(manifest_dir)
-    manifest = manifest_xml.XmlManifest(repodir, manifest_file)
+    def setUpManifest(self, tempdir):
+        repodir = os.path.join(tempdir, ".repo")
+        manifest_dir = os.path.join(repodir, "manifests")
+        manifest_file = os.path.join(repodir, manifest_xml.MANIFEST_FILE_NAME)
+        os.mkdir(repodir)
+        os.mkdir(manifest_dir)
+        manifest = manifest_xml.XmlManifest(repodir, manifest_file)
 
-    return project.ManifestProject(
-        manifest, 'test/manifest', os.path.join(tempdir, '.git'), tempdir)
+        return project.ManifestProject(
+            manifest, "test/manifest", os.path.join(tempdir, ".git"), tempdir
+        )
 
-  def test_manifest_config_properties(self):
-    """Test we are fetching the manifest config properties correctly."""
+    def test_manifest_config_properties(self):
+        """Test we are fetching the manifest config properties correctly."""
 
-    with TempGitTree() as tempdir:
-      fakeproj = self.setUpManifest(tempdir)
+        with TempGitTree() as tempdir:
+            fakeproj = self.setUpManifest(tempdir)
 
-      # Set property using the expected Set method, then ensure
-      # the porperty functions are using the correct Get methods.
-      fakeproj.config.SetString(
-          'manifest.standalone', 'https://chicken/manifest.git')
-      self.assertEqual(
-          fakeproj.standalone_manifest_url, 'https://chicken/manifest.git')
+            # Set property using the expected Set method, then ensure
+            # the porperty functions are using the correct Get methods.
+            fakeproj.config.SetString(
+                "manifest.standalone", "https://chicken/manifest.git"
+            )
+            self.assertEqual(
+                fakeproj.standalone_manifest_url, "https://chicken/manifest.git"
+            )
 
-      fakeproj.config.SetString('manifest.groups', 'test-group, admin-group')
-      self.assertEqual(fakeproj.manifest_groups, 'test-group, admin-group')
+            fakeproj.config.SetString(
+                "manifest.groups", "test-group, admin-group"
+            )
+            self.assertEqual(
+                fakeproj.manifest_groups, "test-group, admin-group"
+            )
 
-      fakeproj.config.SetString('repo.reference', 'mirror/ref')
-      self.assertEqual(fakeproj.reference, 'mirror/ref')
+            fakeproj.config.SetString("repo.reference", "mirror/ref")
+            self.assertEqual(fakeproj.reference, "mirror/ref")
 
-      fakeproj.config.SetBoolean('repo.dissociate', False)
-      self.assertFalse(fakeproj.dissociate)
+            fakeproj.config.SetBoolean("repo.dissociate", False)
+            self.assertFalse(fakeproj.dissociate)
 
-      fakeproj.config.SetBoolean('repo.archive', False)
-      self.assertFalse(fakeproj.archive)
+            fakeproj.config.SetBoolean("repo.archive", False)
+            self.assertFalse(fakeproj.archive)
 
-      fakeproj.config.SetBoolean('repo.mirror', False)
-      self.assertFalse(fakeproj.mirror)
+            fakeproj.config.SetBoolean("repo.mirror", False)
+            self.assertFalse(fakeproj.mirror)
 
-      fakeproj.config.SetBoolean('repo.worktree', False)
-      self.assertFalse(fakeproj.use_worktree)
+            fakeproj.config.SetBoolean("repo.worktree", False)
+            self.assertFalse(fakeproj.use_worktree)
 
-      fakeproj.config.SetBoolean('repo.clonebundle', False)
-      self.assertFalse(fakeproj.clone_bundle)
+            fakeproj.config.SetBoolean("repo.clonebundle", False)
+            self.assertFalse(fakeproj.clone_bundle)
 
-      fakeproj.config.SetBoolean('repo.submodules', False)
-      self.assertFalse(fakeproj.submodules)
+            fakeproj.config.SetBoolean("repo.submodules", False)
+            self.assertFalse(fakeproj.submodules)
 
-      fakeproj.config.SetBoolean('repo.git-lfs', False)
-      self.assertFalse(fakeproj.git_lfs)
+            fakeproj.config.SetBoolean("repo.git-lfs", False)
+            self.assertFalse(fakeproj.git_lfs)
 
-      fakeproj.config.SetBoolean('repo.superproject', False)
-      self.assertFalse(fakeproj.use_superproject)
+            fakeproj.config.SetBoolean("repo.superproject", False)
+            self.assertFalse(fakeproj.use_superproject)
 
-      fakeproj.config.SetBoolean('repo.partialclone', False)
-      self.assertFalse(fakeproj.partial_clone)
+            fakeproj.config.SetBoolean("repo.partialclone", False)
+            self.assertFalse(fakeproj.partial_clone)
 
-      fakeproj.config.SetString('repo.depth', '48')
-      self.assertEqual(fakeproj.depth, '48')
+            fakeproj.config.SetString("repo.depth", "48")
+            self.assertEqual(fakeproj.depth, "48")
 
-      fakeproj.config.SetString('repo.clonefilter', 'blob:limit=10M')
-      self.assertEqual(fakeproj.clone_filter, 'blob:limit=10M')
+            fakeproj.config.SetString("repo.clonefilter", "blob:limit=10M")
+            self.assertEqual(fakeproj.clone_filter, "blob:limit=10M")
 
-      fakeproj.config.SetString('repo.partialcloneexclude', 'third_party/big_repo')
-      self.assertEqual(fakeproj.partial_clone_exclude, 'third_party/big_repo')
+            fakeproj.config.SetString(
+                "repo.partialcloneexclude", "third_party/big_repo"
+            )
+            self.assertEqual(
+                fakeproj.partial_clone_exclude, "third_party/big_repo"
+            )
 
-      fakeproj.config.SetString('manifest.platform', 'auto')
-      self.assertEqual(fakeproj.manifest_platform, 'auto')
+            fakeproj.config.SetString("manifest.platform", "auto")
+            self.assertEqual(fakeproj.manifest_platform, "auto")