Cannot find `ArchiveByteStream` in scope

Question

Created Dec ’21

Replies 3

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I'm currently trying to decompress a received .zip file from the backend and while researching I found the native library called AppleArchive. I've imported the library and tried the code described here but I get the following error:

Screenshot 2021-12-15 at 16.52.57.png

Also if i go into the library itself only one method shows up:

public func __assert_rtn(_: UnsafePointer<CChar>!, _: UnsafePointer<CChar>!, _: Int32, _: UnsafePointer<CChar>!) -> Never

Tested on Xcode 13.2 on a project with minimum deployment of iOS 15.0

Edit Tested it again by changing the build target to be a real device and it works!

Questions:

Can this library be used to unarchive .zip files?
How can AppleArchive be used on a simulator device?

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Answer 1

robnotyou OP

Dec ’21

The Xcode Developer Documentation has a detailed explanations of Apple Archive, including:

Decompressing Single Files
Decompressing and Extracting an Archived Directory
Decompressing and Parsing an Archived String

Your example code snippets may have become outdated (or may just be incomplete), but it builds cleanly for me, except for the handling of the "defer" statements.

Apple Archive.png

import AppleArchive
import System

func testDecompressStream(readFileStream: ArchiveByteStream) {
    guard let decompressStream = ArchiveByteStream.decompressionStream(readingFrom: readFileStream) else {
        return
    }
    defer {
        try? decompressStream.close()
    }
}

Xcode 13.2 (13C90)

0

Answer 2

DTS Engineer OP

Apple

Dec ’21

When you tested this code did you chose a simulator or a real device?

That’s key. There’s a known issue with Apple Archive when building for the simulator. See this thread.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

0

Answer 3

robnotyou OP

Dec ’21

When you tested this code did you chose a simulator or a real device?

The original question did not specify a platform.
I tested on macOS.

0