DataCompression | Swift libcompression wrapper as an extension for the Data | Compression library
kandi X-RAY | DataCompression Summary
kandi X-RAY | DataCompression Summary
Swift libcompression wrapper as an extension for the Data type (GZIP, ZLIB, LZFSE, LZMA, LZ4, deflate, RFC-1950, RFC-1951, RFC-1952)
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QUESTION
I'm trying to achieve a very simple thing in my iOS app: zip a file in Documents
folder. I wrote the following FileManager
extension:
ANSWER
Answered 2020-Jan-20 at 07:49ZIP is an archive file format which also supports compression (but it can also contain uncompressed files).
A ZIP archive contains more than just the compressed file contents. It also maintains an index of all files, directories & symlinks. This index is called Central Directory and it is appended to the end of the file. Additionally each file in the archive also gets some metadata attached. This local file header carries information such as file creation date, file attributes, file paths, ...
You can find a full specification of the ZIP format here.
I published a small framework that can be used to work with ZIP archives in Swift: https://github.com/weichsel/ZIPFoundation
Using this framework, you can create an archive from a single file by using the following code:
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