Source code for formatter2.formatter

from __future__ import print_function

import os
import sys
import logging

from . import _stringio
from .tokens import Tokens

logger = logging.getLogger(__name__)

[docs]class Formatter(object): def __init__(self): self.logger = logger.getChild(self.__class__.__name__) def __call__(self, input_file, seek=True): if seek and hasattr(input_file, 'seek'): if hasattr(input_file, 'readline'): tokens = Tokens.from_fh(input_file) elif input_file == '-': tokens = Tokens.from_readline(sys.stdin.readline) else: with open(input_file) as fh: file_ = _stringio.StringIO() print(, file=file_) tokens = Tokens.from_readline(file_.readline) formatted = tokens() # Test if we didn't break anything try: compile(formatted, '', 'exec') except SyntaxError: logging.debug('Formatted code:\n%s', formatted) logging.error('Unable to format %r', input_file) raise return formatted
[docs] def format_path(self, path, recursive=False): if os.path.isfile(path) or path == '-': self.format_file(path) elif recursive: self.format_directory(path)
[docs] def format_directory(self, directory): for path, dirs, files in os.walk(directory): for file_ in files: fullpath = os.path.join(path, file_) if os.path.splitext(fullpath)[-1] == '.py': self.format_file(fullpath)
[docs] def format_file(self, name): code = self(name) if name == '-': sys.stdout.write(code) else: with open(name, 'w') as fh: fh.write(code) # Ugly but effective old_argv = sys.argv[:] sys.argv = ['pep8', '--ignore', 'W391', name] import pep8 pep8style = pep8.StyleGuide(parse_argv=True, config_file=False) pep8style.check_files() sys.argv = old_argv
[docs] @classmethod def format_string(cls, string): formatter = Formatter() fh = _stringio.StringIO() print(string, file=fh) return formatter(fh)