[Culprit-Finder] Merge lib/ to libs/.

appengine/findit/lib/gitiles/change_log.py

-# Copyright 2014 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-from collections import namedtuple
-
-from lib.gitiles.diff import ChangeType
-
-# TODO(wrengr): it'd be better to have a class hierarchy here, so we can
-# avoid playing around with None, and so the change_type can be stored
-# once (in the class itself; rather than once per instance).
-# TODO(http://crbug/644476): better name for this class; i.e., without
-# the extraneous \"Info\" at the very least.
-# TODO(http://crbug.com/659346): coverage tests for the smart constructors.
-class FileChangeInfo(namedtuple('FileChangeInfo',
-    ['change_type', 'old_path', 'new_path'])):
-  """Represents a file change (add/delete/modify/rename/copy/etc)."""
-  __slots__ = ()
-
-  @classmethod
-  def Modify(cls, path): # pragma: no cover
-    return cls(ChangeType.MODIFY, path, path)
-
-  @classmethod
-  def Add(cls, path): # pragma: no cover
-    # Stay the same as gitile.
-    return cls(ChangeType.ADD, None, path)
-
-  @classmethod
-  def Delete(cls, path): # pragma: no cover
-    return cls(ChangeType.DELETE, path, None)
-
-  @classmethod
-  def Rename(cls, old_path, new_path): # pragma: no cover
-    return cls(ChangeType.RENAME, old_path, new_path)
-
-  @classmethod
-  def Copy(cls, old_path, new_path): # pragma: no cover
-    return cls(ChangeType.COPY, old_path, new_path)
-
-  @classmethod
-  def FromDict(cls, info):
-    return cls(info['change_type'].lower(), info['old_path'], info['new_path'])
-
-  def ToDict(self):
-    return {
-        'change_type': self.change_type,
-        'old_path': self.old_path,
-        'new_path': self.new_path
-    }
-
-
-class ChangeLog(namedtuple('ChangeLog',
-    ['author_name', 'author_email', 'author_time', 'committer_name',
-     'committer_email', 'committer_time', 'revision', 'commit_position',
-     'message', 'touched_files', 'commit_url', 'code_review_url',
-     'reverted_revision'])):
-  """Represents the change log of a revision."""
-  __slots__ = ()
-
-  def __new__(cls, author_name, author_email, author_time, committer_name,
-              committer_email, committer_time, revision, commit_position,
-              message, touched_files, commit_url, code_review_url=None,
-              reverted_revision=None):
-    return super(cls, ChangeLog).__new__(cls,
-        author_name, author_email, author_time, committer_name,
-        committer_email, committer_time, revision, commit_position,
-        message, touched_files, commit_url, code_review_url, 
-        reverted_revision)
-
-  def ToDict(self):
-    """Returns the change log as a JSON object."""
-    json_data = {
-      'author_name': self.author_name,
-      'author_email': self.author_email,
-      'author_time': self.author_time,
-      'committer_name': self.committer_name,
-      'committer_email': self.committer_email,
-      'committer_time': self.committer_time,
-      'revision': self.revision,
-      'commit_position': self.commit_position,
-      'touched_files': [],
-      'message': self.message,
-      'commit_url': self.commit_url,
-      'code_review_url': self.code_review_url,
-      'reverted_revision': self.reverted_revision,
-    }
-    for touched_file in self.touched_files:
-      json_data['touched_files'].append(touched_file.ToDict())
-    return json_data
-
-  @staticmethod
-  def FromDict(info):
-    """Returns a ChangeLog instance represented by the given JSON info."""
-    touched_files = []
-    for touched_file_info in info['touched_files']:
-      if isinstance(touched_file_info, dict):
-        touched_file_info = FileChangeInfo.FromDict(touched_file_info)
-      if not isinstance(touched_file_info, FileChangeInfo): # pragma: no cover
-        raise TypeError("expected FileChangeInfo but got %s"
-            % touched_file_info.__class__.__name__)
-      touched_files.append(touched_file_info)
-
-    return ChangeLog(
-        info['author_name'], info['author_email'], info['author_time'],
-        info['committer_name'], info['committer_email'], info['committer_time'],
-        info['revision'], info['commit_position'], info['message'],
-        touched_files, info['commit_url'], info['code_review_url'],
-        info['reverted_revision']
-    )