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Swift：macのディスク使用量を取得する

Swift

Last updated at 2019-10-07Posted at 2019-06-23

func usage() {
    let url = NSURL(fileURLWithPath: "/")
    let keys: [URLResourceKey] = [.volumeTotalCapacityKey, .volumeAvailableCapacityForImportantUsageKey]
    guard let dict = try? url.resourceValues(forKeys: keys) else {
        return
    }
    let total = (dict[URLResourceKey.volumeTotalCapacityKey] as! NSNumber).int64Value
    let free = (dict[URLResourceKey.volumeAvailableCapacityForImportantUsageKey] as! NSNumber).int64Value

    let totalStr = ByteCountFormatter.string(fromByteCount: total, countStyle: ByteCountFormatter.CountStyle.decimal)
    let freeStr = ByteCountFormatter.string(fromByteCount: free, countStyle: ByteCountFormatter.CountStyle.decimal)
    let usedStr = ByteCountFormatter.string(fromByteCount: total - free, countStyle: ByteCountFormatter.CountStyle.decimal)
    
    Swift.print("Total: \(totalStr), Free: \(freeStr), Used: \(usedStr)")
}

// Total: 1 TB, Free: 637.46 GB, Used: 362.78 GB

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