Remove closure_linter from Chrome

third_party/closure_linter/closure_linter/runner.py

-#!/usr/bin/env python
-#
-# Copyright 2012 The Closure Linter Authors. All Rights Reserved.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS-IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-"""Main lint function. Tokenizes file, runs passes, and feeds to checker."""
-
-# Allow non-Google copyright
-# pylint: disable=g-bad-file-header
-
-__author__ = 'nnaze@google.com (Nathan Naze)'
-
-import traceback
-
-import gflags as flags
-
-from closure_linter import checker
-from closure_linter import ecmalintrules
-from closure_linter import ecmametadatapass
-from closure_linter import error_check
-from closure_linter import errors
-from closure_linter import javascriptstatetracker
-from closure_linter import javascripttokenizer
-
-from closure_linter.common import error
-from closure_linter.common import htmlutil
-from closure_linter.common import tokens
-
-flags.DEFINE_list('limited_doc_files', ['dummy.js', 'externs.js'],
-                  'List of files with relaxed documentation checks. Will not '
-                  'report errors for missing documentation, some missing '
-                  'descriptions, or methods whose @return tags don\'t have a '
-                  'matching return statement.')
-flags.DEFINE_boolean('error_trace', False,
-                     'Whether to show error exceptions.')
-flags.ADOPT_module_key_flags(checker)
-flags.ADOPT_module_key_flags(ecmalintrules)
-flags.ADOPT_module_key_flags(error_check)
-
-
-def _GetLastNonWhiteSpaceToken(start_token):
-  """Get the last non-whitespace token in a token stream."""
-  ret_token = None
-
-  whitespace_tokens = frozenset([
-      tokens.TokenType.WHITESPACE, tokens.TokenType.BLANK_LINE])
-  for t in start_token:
-    if t.type not in whitespace_tokens:
-      ret_token = t
-
-  return ret_token
-
-
-def _IsHtml(filename):
-  return filename.endswith('.html') or filename.endswith('.htm')
-
-
-def _Tokenize(fileobj):
-  """Tokenize a file.
-
-  Args:
-    fileobj: file-like object (or iterable lines) with the source.
-
-  Returns:
-    The first token in the token stream and the ending mode of the tokenizer.
-  """
-  tokenizer = javascripttokenizer.JavaScriptTokenizer()
-  start_token = tokenizer.TokenizeFile(fileobj)
-  return start_token, tokenizer.mode
-
-
-def _IsLimitedDocCheck(filename, limited_doc_files):
-  """Whether this this a limited-doc file.
-
-  Args:
-    filename: The filename.
-    limited_doc_files: Iterable of strings. Suffixes of filenames that should
-      be limited doc check.
-
-  Returns:
-    Whether the file should be limited check.
-  """
-  for limited_doc_filename in limited_doc_files:
-    if filename.endswith(limited_doc_filename):
-      return True
-  return False
-
-
-def Run(filename, error_handler, source=None):
-  """Tokenize, run passes, and check the given file.
-
-  Args:
-    filename: The path of the file to check
-    error_handler: The error handler to report errors to.
-    source: A file-like object with the file source. If omitted, the file will
-      be read from the filename path.
-  """
-  if not source:
-    try:
-      source = open(filename)
-    except IOError:
-      error_handler.HandleFile(filename, None)
-      error_handler.HandleError(
-          error.Error(errors.FILE_NOT_FOUND, 'File not found'))
-      error_handler.FinishFile()
-      return
-
-  if _IsHtml(filename):
-    source_file = htmlutil.GetScriptLines(source)
-  else:
-    source_file = source
-
-  token, tokenizer_mode = _Tokenize(source_file)
-
-  error_handler.HandleFile(filename, token)
-
-  # If we did not end in the basic mode, this a failed parse.
-  if tokenizer_mode is not javascripttokenizer.JavaScriptModes.TEXT_MODE:
-    error_handler.HandleError(
-        error.Error(errors.FILE_IN_BLOCK,
-                    'File ended in mode "%s".' % tokenizer_mode,
-                    _GetLastNonWhiteSpaceToken(token)))
-
-  # Run the ECMA pass
-  error_token = None
-
-  ecma_pass = ecmametadatapass.EcmaMetaDataPass()
-  error_token = RunMetaDataPass(token, ecma_pass, error_handler, filename)
-
-  is_limited_doc_check = (
-      _IsLimitedDocCheck(filename, flags.FLAGS.limited_doc_files))
-
-  _RunChecker(token, error_handler,
-              is_limited_doc_check,
-              is_html=_IsHtml(filename),
-              stop_token=error_token)
-
-  error_handler.FinishFile()
-
-
-def RunMetaDataPass(start_token, metadata_pass, error_handler, filename=''):
-  """Run a metadata pass over a token stream.
-
-  Args:
-    start_token: The first token in a token stream.
-    metadata_pass: Metadata pass to run.
-    error_handler: The error handler to report errors to.
-    filename: Filename of the source.
-
-  Returns:
-    The token where the error occurred (if any).
-  """
-
-  try:
-    metadata_pass.Process(start_token)
-  except ecmametadatapass.ParseError, parse_err:
-    if flags.FLAGS.error_trace:
-      traceback.print_exc()
-    error_token = parse_err.token
-    error_msg = str(parse_err)
-    error_handler.HandleError(
-        error.Error(errors.FILE_DOES_NOT_PARSE,
-                    ('Error parsing file at token "%s". Unable to '
-                     'check the rest of file.'
-                     '\nError "%s"' % (error_token, error_msg)), error_token))
-    return error_token
-  except Exception:  # pylint: disable=broad-except
-    traceback.print_exc()
-    error_handler.HandleError(
-        error.Error(
-            errors.FILE_DOES_NOT_PARSE,
-            'Internal error in %s' % filename))
-
-
-def _RunChecker(start_token, error_handler,
-                limited_doc_checks, is_html,
-                stop_token=None):
-
-  state_tracker = javascriptstatetracker.JavaScriptStateTracker()
-
-  style_checker = checker.JavaScriptStyleChecker(
-      state_tracker=state_tracker,
-      error_handler=error_handler)
-
-  style_checker.Check(start_token,
-                      is_html=is_html,
-                      limited_doc_checks=limited_doc_checks,
-                      stop_token=stop_token)