CODEWITHSUNDEEP
macosswiftcocoamounted-volumes
Tomas.1997
Tomas.1997

Reputation: 171

Get mounted volumes list with Swift?

Does anyone know how to get a list of all removable volumes mounted with Swift?

I've already tried this, but it return a list of all files and subfolders of external drivers:

let filemanager:NSFileManager = NSFileManager()
let files = filemanager.enumeratorAtPath("/Volumes")

while let file = files?.nextObject() {
    println(file)
    menu.addItem(NSMenuItem(title: file as! String, action: Selector(""), keyEquivalent: ""))
}

Upvotes: 7

Views: 5575

Answers (3)

Daniel Jorge
Daniel Jorge

Reputation: 73

let keys: [URLResourceKey] = [
    .volumeNameKey,
    .volumeIsRemovableKey,
    .volumeIsEjectableKey,
    .volumeAvailableCapacityKey,
    .volumeTotalCapacityKey,
    .volumeUUIDStringKey,
    .volumeIsBrowsableKey,
    .volumeIsLocalKey,
    .isVolumeKey,
]

let manager = FileManager.default.mountedVolumeURLs(includingResourceValuesForKeys: keys)
if let urls = manager {
    print(urls)
}

This code is working fine for MacOS, however on the iOS side it always returns nil. Is there any known workaround? Thanks!

Upvotes: 0

anfalas
anfalas

Reputation: 1

On Unix systems a filesystem object with a system file number of 2 is a mount, regardless of a remote (nfs, smb, afp) or a local mount.

Here's an example:

let path = "/System/Volumes/Preboot"
let systemAttributes = try FileManager.default.attributesOfItem(atPath: String(describing: path))
if let fileSystemFileNumber = systemAttributes[.systemFileNumber] as? NSNumber {
    print("System File Number: \(fileSystemFileNumber)")
}

So maybe this could be a short way to find mounts

Upvotes: 0

Eric Aya
Eric Aya

Reputation: 70096

This prints the list of all mounted volumes:

let filemanager = NSFileManager()
let keys = [NSURLVolumeNameKey, NSURLVolumeIsRemovableKey, NSURLVolumeIsEjectableKey]
let paths = filemanager.mountedVolumeURLsIncludingResourceValuesForKeys(keys, options: nil)
if let urls = paths as? [NSURL] {
    for url in urls {
        println(url)
    }
}

You can of course filter to get only the paths inside the "Volumes" directory:

let filemanager = NSFileManager()
let keys = [NSURLVolumeNameKey, NSURLVolumeIsRemovableKey, NSURLVolumeIsEjectableKey]
let paths = filemanager.mountedVolumeURLsIncludingResourceValuesForKeys(keys, options: nil)
if let urls = paths as? [NSURL] {
    for url in urls {
        if url.relativePath?.pathComponents.count > 1 {
            if url.relativePath?.pathComponents[1] == "Volumes" {
                println(url)
            }
        }
    }
}

And with Swift 2 there's two differences: pass [] instead of nil for the filemanager's options, and there's no need to cast the array of NSURLs:

let filemanager = NSFileManager()
let keys = [NSURLVolumeNameKey, NSURLVolumeIsRemovableKey, NSURLVolumeIsEjectableKey]
let paths = filemanager.mountedVolumeURLsIncludingResourceValuesForKeys(keys, options: [])
if let urls = paths {
    for url in urls {
        if url.relativePath?.pathComponents.count > 1 {
            if url.relativePath?.pathComponents[1] == "Volumes" {
                print(url)
            }
        }
    }
}

Update for Swift 2.1

let keys = [NSURLVolumeNameKey, NSURLVolumeIsRemovableKey, NSURLVolumeIsEjectableKey]
let paths = NSFileManager().mountedVolumeURLsIncludingResourceValuesForKeys(keys, options: [])
if let urls = paths {
    for url in urls {
        if let components = url.pathComponents
            where components.count > 1
            && components[1] == "Volumes" {
                print(url)
        }
    }
}

Update for Swift 3

let keys: [URLResourceKey] = [.volumeNameKey, .volumeIsRemovableKey, .volumeIsEjectableKey]
let paths = FileManager().mountedVolumeURLs(includingResourceValuesForKeys: keys, options: [])
if let urls = paths {
    for url in urls {
        let components = url.pathComponents
        if components.count > 1
           && components[1] == "Volumes"
        {
            print(url)
        }
    }
}

Upvotes: 19

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