zenbu.py 文件源码

def diff(self):
        """
        Yield diffs between each template's render and current file.
        """
        for template, dest, result in self.render():
            try:
                with codecs.open(dest, 'r', 'utf-8') as f:
                    yield unified_diff(
                        f.readlines(),
                        result.splitlines(True),
                        fromfile=dest,
                        tofile='%s (rendered)' % dest)
            except IOError:
                yield [
                    "=== No destination file \"%s\" for comparison.\n"
                    % dest]