Gets list of total diff

        :return: List of total diff between 2 consecutive commits since start

def get_diff_amounts(self):
        """Gets list of total diff

        :return: List of total diff between 2 consecutive commits since start
        """
        diffs = []

        last_commit = None
        for commit in self.repo.iter_commits():
            if last_commit is not None:
                diff = self.get_diff(commit.hexsha, last_commit.hexsha)
                total_changed = diff[Diff.ADD] + diff[Diff.DEL]
                diffs.append(total_changed)

            last_commit = commit

        return diffs