Check if a file or directory is hidden-CodePudding

On Mac, the first case, if the name of a file or dir is start with the ".", then it is hidden.

another case, for example:

/Users/USER_NAME/Library
/bin

Their names do not start with ".", but their is hidden.

I got all attributes of '/Users/USER_NAME/Library':

objective-c

NSError * error;
NSDictionary *attributes = [[NSFileManager defaultManager] attributesOfItemAtPath:filePath error:&error];

output:

{
    NSFileCreationDate = "2019-06-04 23:44:56  0000";
    NSFileExtensionHidden = 0;
    NSFileGroupOwnerAccountID = 20;
    NSFileGroupOwnerAccountName = staff;
    NSFileModificationDate = "2021-10-31 18:47:57  0000";
    NSFileOwnerAccountID = 501;
    NSFileOwnerAccountName = xxxxxxxx;
    NSFilePosixPermissions = 448;
    NSFileProtectionKey = NSFileProtectionCompleteUntilFirstUserAuthentication;
    NSFileReferenceCount = 79;
    NSFileSize = 2528;
    NSFileSystemFileNumber = 360719;
    NSFileSystemNumber = 16777221;
    NSFileType = NSFileTypeDirectory;
}

I not found whether to hide related attribute(s).

CodePudding user response：

You can check the fileURL resource key isHiddenKey if the fileURL is hidden or not. Note that if the file name begins with a period changing the isHidden value won't have any effect:

From the docs

If the resource is hidden because its name begins with a period, setting this value has no effect.

extension URL {
    var isHidden: Bool {
        get { (try? resourceValues(forKeys: [.isHiddenKey]))?.isHidden == true }
        set {
            var resourceValues = URLResourceValues()
            resourceValues.isHidden = newValue
            do {
                try setResourceValues(resourceValues)
            } catch {
                print("isHidden error:", error)
            }
        }
    }
}