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, 60 insertions, 70 deletions

diff --git a/error.py b/error.py
index cbefcb7e..3cf34d54 100644
--- a/error.py
+++ b/error.py
@@ -14,122 +14,112 @@
 
 
 class ManifestParseError(Exception):
-  """Failed to parse the manifest file.
-  """
+    """Failed to parse the manifest file."""
 
 
 class ManifestInvalidRevisionError(ManifestParseError):
-  """The revision value in a project is incorrect.
-  """
+    """The revision value in a project is incorrect."""
 
 
 class ManifestInvalidPathError(ManifestParseError):
-  """A path used in <copyfile> or <linkfile> is incorrect.
-  """
+    """A path used in <copyfile> or <linkfile> is incorrect."""
 
 
 class NoManifestException(Exception):
-  """The required manifest does not exist.
-  """
+    """The required manifest does not exist."""
 
-  def __init__(self, path, reason):
-    super().__init__(path, reason)
-    self.path = path
-    self.reason = reason
+    def __init__(self, path, reason):
+        super().__init__(path, reason)
+        self.path = path
+        self.reason = reason
 
-  def __str__(self):
-    return self.reason
+    def __str__(self):
+        return self.reason
 
 
 class EditorError(Exception):
-  """Unspecified error from the user's text editor.
-  """
+    """Unspecified error from the user's text editor."""
 
-  def __init__(self, reason):
-    super().__init__(reason)
-    self.reason = reason
+    def __init__(self, reason):
+        super().__init__(reason)
+        self.reason = reason
 
-  def __str__(self):
-    return self.reason
+    def __str__(self):
+        return self.reason
 
 
 class GitError(Exception):
-  """Unspecified internal error from git.
-  """
+    """Unspecified internal error from git."""
 
-  def __init__(self, command):
-    super().__init__(command)
-    self.command = command
+    def __init__(self, command):
+        super().__init__(command)
+        self.command = command
 
-  def __str__(self):
-    return self.command
+    def __str__(self):
+        return self.command
 
 
 class UploadError(Exception):
-  """A bundle upload to Gerrit did not succeed.
-  """
+    """A bundle upload to Gerrit did not succeed."""
 
-  def __init__(self, reason):
-    super().__init__(reason)
-    self.reason = reason
+    def __init__(self, reason):
+        super().__init__(reason)
+        self.reason = reason
 
-  def __str__(self):
-    return self.reason
+    def __str__(self):
+        return self.reason
 
 
 class DownloadError(Exception):
-  """Cannot download a repository.
-  """
+    """Cannot download a repository."""
 
-  def __init__(self, reason):
-    super().__init__(reason)
-    self.reason = reason
+    def __init__(self, reason):
+        super().__init__(reason)
+        self.reason = reason
 
-  def __str__(self):
-    return self.reason
+    def __str__(self):
+        return self.reason
 
 
 class NoSuchProjectError(Exception):
-  """A specified project does not exist in the work tree.
-  """
+    """A specified project does not exist in the work tree."""
 
-  def __init__(self, name=None):
-    super().__init__(name)
-    self.name = name
+    def __init__(self, name=None):
+        super().__init__(name)
+        self.name = name
 
-  def __str__(self):
-    if self.name is None:
-      return 'in current directory'
-    return self.name
+    def __str__(self):
+        if self.name is None:
+            return "in current directory"
+        return self.name
 
 
 class InvalidProjectGroupsError(Exception):
-  """A specified project is not suitable for the specified groups
-  """
+    """A specified project is not suitable for the specified groups"""
 
-  def __init__(self, name=None):
-    super().__init__(name)
-    self.name = name
+    def __init__(self, name=None):
+        super().__init__(name)
+        self.name = name
 
-  def __str__(self):
-    if self.name is None:
-      return 'in current directory'
-    return self.name
+    def __str__(self):
+        if self.name is None:
+            return "in current directory"
+        return self.name
 
 
 class RepoChangedException(Exception):
-  """Thrown if 'repo sync' results in repo updating its internal
-     repo or manifest repositories.  In this special case we must
-     use exec to re-execute repo with the new code and manifest.
-  """
+    """Thrown if 'repo sync' results in repo updating its internal
+    repo or manifest repositories.  In this special case we must
+    use exec to re-execute repo with the new code and manifest.
+    """
 
-  def __init__(self, extra_args=None):
-    super().__init__(extra_args)
-    self.extra_args = extra_args or []
+    def __init__(self, extra_args=None):
+        super().__init__(extra_args)
+        self.extra_args = extra_args or []
 
 
 class HookError(Exception):
-  """Thrown if a 'repo-hook' could not be run.
+    """Thrown if a 'repo-hook' could not be run.
 
-  The common case is that the file wasn't present when we tried to run it.
-  """
+    The common case is that the file wasn't present when we tried to run it.
+    """