Directory Exists at Path in Swift

directoryExistsAtPath.swift

fileprivate func directoryExistsAtPath(_ path: String) -> Bool {
    var isDirectory = ObjCBool(true)
    let exists = FileManager.default.fileExists(atPath: path, isDirectory: &isDirectory)
    return exists && isDirectory.boolValue
}

ObjCBool(true)
&isDirectory

Can you explain this?

@yarodevuci
ObjCBool is use in ObjectC. Which mean it can match to pointer address. So isDirectory: &isDirectory mean "i just send pointer address, and fileExists will fill in isDirectory value".
If you don't understand it: It is old black magic. Just use it and naver ask about it.

@yarodevuci In Swift there are no pointers and this function requires a pointer to a boolean value. This can be done using ObjCBool instead of the usual Bool type. See Apple docs for details.

is fileExists case-insensitive? It considers "test" and "Test" as different folders. Any way to fix this?

@venkat20390, fileExists must conform to the way OS file system treats folders.
If test and Test are different folders on file system - then FileManager should treat them as different folders

@yarodevuci , I'm assuming this fileExists function does two things, it returns if given path is present and will update boolean using poiter to its address if the provided path is Directory to True else False.

Hence we are doing exists && isDirectory.boolValue in the end.

from documentation:
isDirectory: Upon return, contains true if path is a directory or if the final path element is a symbolic link that points to a directory; otherwise, contains false. If path doesn’t exist, this value is undefined upon return. Pass NULL if you do not need this information.