Execute git commands

def git_exec(self, command, **kwargs):
        """Execute git commands"""
        from .cli import verbose_echo

        command.insert(0, self.git)
        if kwargs.pop('no_verbose', False):  # used when git output isn't helpful to user
            verbose = False
        else:
            verbose = self.verbose
        verbose_echo(' '.join(command), verbose, self.fake)

        if not self.fake:
            result = self.repo.git.execute(command, **kwargs)
        else:
            if 'with_extended_output' in kwargs:
                result = (0, '', '')
            else:
                result = ''
        return result