The Compress::Zip module contains readers and writers of the zip file format, described at PKWARE's site.
Two types are provided to read from zip files:
Compress::Zip::File
: can read zip entries from a File
or from an IO::Memory
and provides random read access to its entries.Compress::Zip::Reader
: can only read zip entries sequentially from any IO
.Compress::Zip::File
is the preferred method to read zip files if you can provide a File
, because it's a bit more flexible and provides more complete information for zip entries (such as comments).
When reading zip files, CRC32 checksum values are automatically verified when finishing reading an entry, and Compress::Zip::Error
will be raised if the computed CRC32 checksum does not match.
Use Compress::Zip::Writer
, which writes zip entries sequentially to any IO
.
NOTE only compression methods 0 (STORED) and 8 (DEFLATED) are supported. Additionally, ZIP64 is not yet supported.
33639248
101010256
20_u16
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Licensed under the Apache License, Version 2.0.
https://crystal-lang.org/api/0.35.1/Compress/Zip.html