electron/script/node/generate_original_fs.py

#!/usr/bin/python3

import os
import sys

NODE_ROOT_DIR = "../../third_party/electron_node"
out_dir = sys.argv[1]
fs_files = sys.argv[2:]

for fs_file in fs_files:
    with open(os.path.join(NODE_ROOT_DIR, fs_file), 'r',
              encoding='utf-8') as f:
        contents = f.read()
        original_fs_file = fs_file.replace('internal/fs/',
                'internal/original-fs/').replace('lib/fs.js',
                'lib/original-fs.js').replace('lib/fs/',
                'lib/original-fs/')

        with open(os.path.join(out_dir, fs_file), 'w', encoding='utf-8'
                  ) as original_f:
            original_f.write(contents)

        with open(os.path.join(out_dir, original_fs_file), 'w',
                  encoding='utf-8') as transformed_f:
            transformed_contents = contents.replace('internal/fs/',
                    'internal/original-fs/').replace('require(\'fs',
                    'require(\'original-fs')
            transformed_f.write(transformed_contents)