annotate 2.00/zipfile271.diff @ 40:af9c45708987

Cemented a decision previously being unsure about The mere presense of the tasknames configuration variable now always makes problem names to be printed. This is not new, but the old behaviour (only printing names if we test more than one problem), previously commented out, has now been removed altogether.
author Oleg Oshmyan <chortos@inbox.lv>
date Sun, 05 Dec 2010 14:34:24 +0100
parents 3000bb94addb
children
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1 --- /usr/local/lib/python2.7/zipfile.py 2010-11-29 00:56:38.000000000 +0000
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2 +++ zipfile271.py 2010-11-29 01:20:17.000000000 +0000
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3 @@ -1,6 +1,7 @@
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4 """
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5 Read and write ZIP files.
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6 """
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7 +# Improved by Chortos-2 in 2010 (added bzip2 support)
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8 import struct, os, time, sys, shutil
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9 import binascii, cStringIO, stat
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10 import io
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11 @@ -13,8 +14,13 @@
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12 zlib = None
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13 crc32 = binascii.crc32
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14
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15 +try:
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16 + import bz2 # We may need its compression method
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17 +except ImportError:
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18 + bz2 = None
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19 +
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20 __all__ = ["BadZipfile", "error", "ZIP_STORED", "ZIP_DEFLATED", "is_zipfile",
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21 - "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile" ]
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22 + "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile", "ZIP_BZIP2" ]
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23
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24 class BadZipfile(Exception):
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25 pass
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26 @@ -35,6 +41,7 @@
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27 # constants for Zip file compression methods
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28 ZIP_STORED = 0
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29 ZIP_DEFLATED = 8
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30 +ZIP_BZIP2 = 12
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31 # Other ZIP compression methods not supported
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32
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33 # Below are some formats and associated data for reading/writing headers using
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34 @@ -483,6 +490,9 @@
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35
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36 if self._compress_type == ZIP_DEFLATED:
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37 self._decompressor = zlib.decompressobj(-15)
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38 + elif self._compress_type == ZIP_BZIP2:
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39 + self._decompressor = bz2.BZ2Decompressor()
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40 + self.MIN_READ_SIZE = 900000
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41 self._unconsumed = ''
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42
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43 self._readbuffer = ''
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44 @@ -641,6 +651,13 @@
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45 self._update_crc(data, eof=eof)
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46 self._readbuffer = self._readbuffer[self._offset:] + data
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47 self._offset = 0
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48 + elif (len(self._unconsumed) > 0 and n > len_readbuffer and
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49 + self._compress_type == ZIP_BZIP2):
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50 + data = self._decompressor.decompress(self._unconsumed)
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51 +
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52 + self._unconsumed = ''
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53 + self._readbuffer = self._readbuffer[self._offset:] + data
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54 + self._offset = 0
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55
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56 # Read from buffer.
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57 data = self._readbuffer[self._offset: self._offset + n]
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58 @@ -657,7 +674,8 @@
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59 file: Either the path to the file, or a file-like object.
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60 If it is a path, the file will be opened and closed by ZipFile.
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61 mode: The mode can be either read "r", write "w" or append "a".
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62 - compression: ZIP_STORED (no compression) or ZIP_DEFLATED (requires zlib).
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63 + compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
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64 + or ZIP_BZIP2 (requires bz2).
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65 allowZip64: if True ZipFile will create files with ZIP64 extensions when
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66 needed, otherwise it will raise an exception when this would
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67 be necessary.
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68 @@ -677,6 +695,10 @@
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69 if not zlib:
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70 raise RuntimeError,\
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71 "Compression requires the (missing) zlib module"
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72 + elif compression == ZIP_BZIP2:
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73 + if not bz2:
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74 + raise RuntimeError,\
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75 + "Compression requires the (missing) bz2 module"
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76 else:
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77 raise RuntimeError, "That compression method is not supported"
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78
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79 @@ -1011,7 +1033,10 @@
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80 if zinfo.compress_type == ZIP_DEFLATED and not zlib:
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81 raise RuntimeError, \
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82 "Compression requires the (missing) zlib module"
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83 - if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED):
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84 + if zinfo.compress_type == ZIP_BZIP2 and not bz2:
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85 + raise RuntimeError, \
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86 + "Compression requires the (missing) bz2 module"
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87 + if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED, ZIP_BZIP2):
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88 raise RuntimeError, \
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89 "That compression method is not supported"
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90 if zinfo.file_size > ZIP64_LIMIT:
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91 @@ -1072,6 +1097,8 @@
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92 if zinfo.compress_type == ZIP_DEFLATED:
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93 cmpr = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
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94 zlib.DEFLATED, -15)
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95 + elif zinfo.compress_type == ZIP_BZIP2:
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96 + cmpr = bz2.BZ2Compressor()
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97 else:
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98 cmpr = None
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99 while 1:
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100 @@ -1132,6 +1159,10 @@
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101 zlib.DEFLATED, -15)
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102 bytes = co.compress(bytes) + co.flush()
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103 zinfo.compress_size = len(bytes) # Compressed size
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104 + elif zinfo.compress_type == ZIP_BZIP2:
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105 + co = bz2.BZ2Compressor()
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106 + bytes = co.compress(bytes) + co.flush()
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107 + zinfo.compress_size = len(bytes) # Compressed size
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108 else:
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109 zinfo.compress_size = zinfo.file_size
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110 zinfo.header_offset = self.fp.tell() # Start of header bytes