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Diffstat (limited to 'pym/portage/_ensure_encodings.py')
| -rw-r--r-- | pym/portage/_ensure_encodings.py | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/pym/portage/_ensure_encodings.py b/pym/portage/_ensure_encodings.py deleted file mode 100644 index 5e62843f1..000000000 --- a/pym/portage/_ensure_encodings.py +++ /dev/null @@ -1,132 +0,0 @@ -# Copyright 2010 Gentoo Foundation -# Distributed under the terms of the GNU General Public License v2 - -import codecs - -_codec_map = None - -def _setup_encodings(default_encoding, filesystem_encoding, missing_encodings): - """ - The <python-2.6.4 that's inside stage 1 or 2 is built with a minimal - configuration which does not include the /usr/lib/pythonX.Y/encodings - directory. This results in error like the following: - - LookupError: no codec search functions registered: can't find encoding - - In order to solve this problem, detect it early and manually register - a search function for the ascii and utf_8 codecs. Starting with python-3.0 - this problem is more noticeable because of stricter handling of encoding - and decoding between strings of characters and bytes. - """ - - global _codec_map - _codec_map = _gen_missing_encodings(missing_encodings) - - default_fallback = 'utf_8' - - if default_encoding in missing_encodings and \ - default_encoding not in _codec_map: - # Make the fallback codec correspond to whatever name happens - # to be returned by sys.getfilesystemencoding(). - - try: - _codec_map[default_encoding] = codecs.lookup(default_fallback) - except LookupError: - _codec_map[default_encoding] = _codec_map[default_fallback] - - if filesystem_encoding in missing_encodings and \ - filesystem_encoding not in _codec_map: - # Make the fallback codec correspond to whatever name happens - # to be returned by sys.getdefaultencoding(). - - try: - _codec_map[filesystem_encoding] = codecs.lookup(default_fallback) - except LookupError: - _codec_map[filesystem_encoding] = _codec_map[default_fallback] - - codecs.register(_search_function) - -def _gen_missing_encodings(missing_encodings): - - codec_map = {} - - if 'ascii' in missing_encodings: - - class AsciiIncrementalEncoder(codecs.IncrementalEncoder): - def encode(self, input, final=False): - return codecs.ascii_encode(input, self.errors)[0] - - class AsciiIncrementalDecoder(codecs.IncrementalDecoder): - def decode(self, input, final=False): - return codecs.ascii_decode(input, self.errors)[0] - - class AsciiStreamWriter(codecs.StreamWriter): - encode = codecs.ascii_encode - - class AsciiStreamReader(codecs.StreamReader): - decode = codecs.ascii_decode - - codec_info = codecs.CodecInfo( - name='ascii', - encode=codecs.ascii_encode, - decode=codecs.ascii_decode, - incrementalencoder=AsciiIncrementalEncoder, - incrementaldecoder=AsciiIncrementalDecoder, - streamwriter=AsciiStreamWriter, - streamreader=AsciiStreamReader, - ) - - for alias in ('ascii', '646', 'ansi_x3.4_1968', 'ansi_x3_4_1968', - 'ansi_x3.4_1986', 'cp367', 'csascii', 'ibm367', 'iso646_us', - 'iso_646.irv_1991', 'iso_ir_6', 'us', 'us_ascii'): - codec_map[alias] = codec_info - - if 'utf_8' in missing_encodings: - - def utf8decode(input, errors='strict'): - return codecs.utf_8_decode(input, errors, True) - - class Utf8IncrementalEncoder(codecs.IncrementalEncoder): - def encode(self, input, final=False): - return codecs.utf_8_encode(input, self.errors)[0] - - class Utf8IncrementalDecoder(codecs.BufferedIncrementalDecoder): - _buffer_decode = codecs.utf_8_decode - - class Utf8StreamWriter(codecs.StreamWriter): - encode = codecs.utf_8_encode - - class Utf8StreamReader(codecs.StreamReader): - decode = codecs.utf_8_decode - - codec_info = codecs.CodecInfo( - name='utf-8', - encode=codecs.utf_8_encode, - decode=utf8decode, - incrementalencoder=Utf8IncrementalEncoder, - incrementaldecoder=Utf8IncrementalDecoder, - streamreader=Utf8StreamReader, - streamwriter=Utf8StreamWriter, - ) - - for alias in ('utf_8', 'u8', 'utf', 'utf8', 'utf8_ucs2', 'utf8_ucs4'): - codec_map[alias] = codec_info - - return codec_map - -def _search_function(name): - global _codec_map - name = name.lower() - name = name.replace('-', '_') - codec_info = _codec_map.get(name) - if codec_info is not None: - return codecs.CodecInfo( - name=codec_info.name, - encode=codec_info.encode, - decode=codec_info.decode, - incrementalencoder=codec_info.incrementalencoder, - incrementaldecoder=codec_info.incrementaldecoder, - streamreader=codec_info.streamreader, - streamwriter=codec_info.streamwriter, - ) - return None |