unzipping a file in cocoa

Question

I have a zipped file, which i want to extract the contents of it. What is the exact procedure that i should do to achieve it. Is there any framework to unzip the files in co

Answer 1

Here's a Swift 4 version similar to Sven Driemecker's answer.

func unzipFile(at sourcePath: String, to destinationPath: String) -> Bool {
    let process = Process.launchedProcess(launchPath: "/usr/bin/unzip", arguments: ["-o", sourcePath, "-d", destinationPath])
    process.waitUntilExit()
    return process.terminationStatus <= 1
}

This implementation returns a boolean that determines if the process was successful or not. Is considering the process successful even if warnings were encountered.

The return condition can be changed to return process.terminationStatus == 0 to not even accept warnings.

See unzip docs for more details on diagnostics.

You can also capture the output of the process using a Pipe instance.

func unzipFile(at sourcePath: String, to destinationPath: String) -> Bool {
    let process = Process()
    let pipe = Pipe()

    process.executableURL = URL(fileURLWithPath: "/usr/bin/unzip")
    process.arguments = ["-o", sourcePath, "-d", destinationPath]
    process.standardOutput = pipe

    do {
        try process.run()
    } catch {
        return false
    }

    let resultData = pipe.fileHandleForReading.readDataToEndOfFile()
    let result = String (data: resultData, encoding: .utf8) ?? ""
    print(result)

    return process.terminationStatus <= 1
}