SWCompression/CHANGELOG.md

Changelog

3.4.0-test

• Added BZip2 compression.
• Added CompressionAlgorithm protocol.
• Deflate now conforms to CompressionAlgorithm protocol.

3.3.1

• Fixed out of range index crash in BitReader.

v3.3.0

• Introduced support for 7-Zip containers.
• Added TarEntry.isLink.
• Added ZipEntry.isLink and ZipEntry.linkPath.
• Added ZipEntry.isTextFile.
• Added ContainerEntry.isLink and ContainerEntry.linkPath.
• Added support for NTFS extra fields in ZIP containers.
• Detection of UTF-8 in ZIP string fields now favors Code Page 437 more.
• Renamed build flags included in Cocoapods configurations.
• Fixed multithreading problems for ZipEntry.data().
• Fixed posixPermissions in TarEntry.entryAttributes containing UNIX type byte in some cases.

v3.2.0

• Split source files.
• Removed SWCompression/Common subpodspec.
• Moved test files into separate repository as a submodule.
  • Fixed problem with Swift Package Manager requirement to disable smudge-filter of git-lfs.
• Support creation time for TarEntries.
• Add support for ZIP standardized CP437 encoding of string fields.
  • Fallback to UTF-8 if this encoding is unavailable on the platform.
  • Fallback to UTF-8 if it is detected that string fields is in UTF-8.
    • Necessary, because Info-ZIP doesn't marks fields it creates with UTF-8 flag.
• Fixed problem with finding zip64 end of Central Directory locator.
• Fixed problem with accessing ZipEntry's data two or more times.
• Fixed problem with accessing data of BZip2 compressed ZipEntry.
• Fixed problem with reading zip64 data descriptor.

v3.1.3

• Added support for GNU LongLinkName and LongName extensions of TAR format.
• Added support for modification timestamp from extended timestamps ZIP extra field.

v3.1.2

• wrongUstarVersion error is no longer incorrectly thrown for GNU tar containers.

v3.1.1

• Permissions attributes for TarEntry are now base-10.
• Now throws fieldIsNotNumber error when encounters non-number required field in TAR header.
• Slightly improved documentation.

v3.1.0

• Added support for multi-member GZip archives.
• Added support for multi-stream XZ archives.
• Added property which allows access various entry's attributes for both Tar and ZIP.
• Several Container/Zip/TarEntry's properties are now considered deprecated.
• ZipEntry now provides access to modification time, posix permission and entry type using the new entryAttributes property.
• Added support for PAX link path.
• Fixed several problems with decompressing files compressed into ZIP container using LZMA.
• Fixed discarding ZIP containers with wrongVersion error when they contain LZMA or BZip2 compressed files.
• Encrypted ZIP containers should now be detected properly.
• ZipError.compressionNotSupported is now only thrown when trying to get entry's data and not when just opening the archive.
• Text fields from GZip header are now decoded with correct encoding.
• Improved Deflate comrpession rate for some corner cases.
• Improved BZip2 performance for cases of big data sizes.

v3.0.1

• Significanty reduced memory usage and improved speed of Deflate compression.

v3.0.0

• All errors have been renamed, so they conform to Swift Naming Conventions (lowerCamelCase).
• Added Container and ContainerEntry protocols.
• Most methods have their arguments' labels renamed to make usage shorter.
• Most documentation have been edited to improve readability.
• Multiple files with results of performance tests replaced with consolidated one.
• Enabled support for LZMA and BZip2 compression algorithms.
• ZipEntry now conforms to ContainerEntry protocol.
• This also means that entry's data is now provided through ZipEntry.data() instead of ZipContainer's function.
• Improved detection of directories if ZIP container was created on MS-DOS or UNIX-like systems.
• ZipError.wrongCRC32 now contains entry's data as associated value.
• Fixed a problem where Zip64 sized fields weren't used during processing of Data Descriptor.
• Added some measures to prevent crashes when it is impossible to read ZIP text fields (file name or comment) in UTF-8 encoding
• Added support for TAR containers in various format versions.
• Now GzipArchive.unarchive function unarchives only first 'member' of archive.
• Added support for GZip archive's option in archive function.
• GzipHeader.modificationTime is now Optional.
• GzipHeader.originalFileName renamed to GzipHeader.fileName.
• Added GzipHeader.isTextFile property which corresponds to same named flag in archive's header.
• Now XZArchive.unarchive function unarchives only first stream of archive.
• Check for xz archive's footer's 'magic' bytes is now performed at the beginning of processing.
• XZ header's checksum is now checked before parsing reserved flags.
• BZip2 now performs CRC32 check for decompressed data.
• Removed internal LZMAOutWindow auxiliary class.

v2.4.3

• Fixed incorrect calculation of header's checksum for GZip archives.

v2.4.2

• Fixed a problem, where ZipEntry.fileName was returning fileComment instead.

v2.4.1

• Lowered deployment targets versions for all (supported) Apple platforms.

v2.4.0

• Reduced memory usage in some cases.
• Added Zlib archiving function.

v2.3.0

• Improved Deflate compression performance.
• Added GZip archiving function.
• Fixed a problem when Deflate uncompressed blocks were created with one extra byte.

v2.2.2

• Fixed problem with zero-length uncompressed blocks.

v2.2.1

• Now creates uncompressed block instead of huffman if it will provide better results (in terms of "compression").
• Small internal changes.

v2.2.0

• Somewhat limited support for Deflate compression.
• API for parsing ZIP entries.

v2.1.0

• ZIP containers support.
• HuffmanTree is no longer part of SWCompression/Common.
• Updated documentation.

v2.0.1

• Fixed incorrect reading adler32 checksum from zlib archives.
• Removed LZMA_INFO and LZMA_DIAG build options.
• (2.0.0) GZip archives with multiple 'members' are now parsed correctly.

v2.0.0

• LZMA decompression.
• XZ unarchiving.
• Once again performance improvement (this time for real).
• Added public API functions for reading gzip/zlib headers.
• Added documentation.
• Added checksums support.
• Added new errors subtypes.
• Added two build options for diagnostical use.
• Rephrased comments to public API.

v1.2.2

• Small performance improvement.

v1.2.1

• Removed HuffmanLength.
• Rewritten DataWithPointer.
• Added performance tests.

v1.2.0

• Reimplemented Huffman Coding using a tree-like structure.
• Now only DataWithPointer is used during the processing.

v1.1.2

• Fixed memory problem in Deflate.
• Improved overall performance.

v1.1.1

• Fixed problems when building with Swift Package Manager.
• Added missing files to watchOS scheme.
• Every release on github now will have an archive with pre-built framework.
• Added info about performance to README.

v1.1.0

• Added BZip2 decompression.
• Introduced subspecs with parts of functionality.
• Additional performance improvements.
• Fixed potential memory problems.
• Added a lot of (educational) comments for Deflate

v1.0.3

Great performance improvements (but there is still room for more improvements).

v1.0.2

• Fixed a problem when decompressed amount of data was greater than expected.
• Performance improvement.

v1.0.1

Fixed several crashes caused by mistyping and shift 'overflow' (when it becomes greater than 15).

v1.0.0

Initial release, which features support for Deflate, Gzip and Zlib decompression.