Updated to Swift 5.0, Removed Swift 3 support

.travis.yml

@@ -1,5 +1,5 @@
 language: objective-c
-osx_image: xcode10
+osx_image: xcode10.2
 xcode_project: $PROJECTNAME.xcodeproj
 env:
   global: 
@@ -13,14 +13,14 @@ env:
   - MACOS_SDK=macosx
   - TVOS_SDK=appletvsimulator
   matrix:
-    - DESTINATION="OS=11.0,name=iPad Pro (10.5-inch)"  SCHEME="$IOS_FRAMEWORK_SCHEME"     SDK="$IOS_SDK"     CARTHAGEDEPLOY="YES"
-    - DESTINATION="OS=11.0,name=iPhone 8"              SCHEME="$IOS_FRAMEWORK_SCHEME"     SDK="$IOS_SDK"     POD="YES"
+    - DESTINATION="OS=12.2,name=iPad Pro (10.5-inch)"  SCHEME="$IOS_FRAMEWORK_SCHEME"     SDK="$IOS_SDK"     CARTHAGEDEPLOY="YES"
+    - DESTINATION="OS=12.2,name=iPhone 8"              SCHEME="$IOS_FRAMEWORK_SCHEME"     SDK="$IOS_SDK"     POD="YES"
     - DESTINATION="arch=x86_64"                        SCHEME="$MACOS_FRAMEWORK_SCHEME"   SDK="$MACOS_SDK"
     - DESTINATION="arch=x86_64"                        SCHEME="FilesProviderTests"        SDK="$MACOS_SDK"   RUN_TESTS="YES"
-    - DESTINATION="OS=11.0,name=Apple TV 1080p"        SCHEME="$TVOS_FRAMEWORK_SCHEME"    SDK="$TVOS_SDK"
+    - DESTINATION="OS=12.2,name=Apple TV 1080p"        SCHEME="$TVOS_FRAMEWORK_SCHEME"    SDK="$TVOS_SDK"
 before_install:
-  - gem install xcpretty --no-rdoc --no-ri --no-document --quiet
-  - gem install cocoapods --no-rdoc --no-ri --no-document --quiet
+  - gem install xcpretty --no-document --quiet
+  - gem install cocoapods --no-document --quiet
   # - gem install xcpretty-travis-formatter
 
 script:

FilesProvider.podspec

@@ -16,7 +16,7 @@ Pod::Spec.new do |s|
   #
 
   s.name         = "FilesProvider"
-  s.version      = "0.25.1"
+  s.version      = "0.26.0"
   s.summary      = "FileManager replacement for Local and Remote (WebDAV/FTP/Dropbox/OneDrive/SMB2) files on iOS and macOS."
 
   # This description is used to generate tags and improve search results.
@@ -65,7 +65,7 @@ Pod::Spec.new do |s|
   #  the deployment target. You can optionally include the target after the platform.
   #
 
-  s.swift_version = "4.2"
+  s.swift_version = "5.0"
   s.ios.deployment_target = "8.0"
   s.osx.deployment_target = "10.10"
   # s.watchos.deployment_target = "2.0"

FilesProvider.xcodeproj/project.pbxproj

@@ -511,22 +511,25 @@
 					};
 					799396741D48B80D00086753 = {
 						CreatedOnToolsVersion = 7.3.1;
+						LastSwiftMigration = 1020;
 					};
 					799396811D48B82700086753 = {
 						CreatedOnToolsVersion = 7.3.1;
 					};
 					79D903501FAB647400D61D31 = {
 						CreatedOnToolsVersion = 9.1;
+						LastSwiftMigration = 1020;
 						ProvisioningStyle = Automatic;
 					};
 				};
 			};
 			buildConfigurationList = 7993965F1D48B7BF00086753 /* Build configuration list for PBXProject "FilesProvider" */;
 			compatibilityVersion = "Xcode 3.2";
-			developmentRegion = English;
+			developmentRegion = en;
 			hasScannedForEncodings = 0;
 			knownRegions = (
 				en,
+				Base,
 			);
 			mainGroup = 7993965B1D48B7BF00086753;
 			productRefGroup = 799396681D48B7F600086753 /* Products */;
@@ -904,7 +907,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "com.mousavian.FilesProvider-OSX";
 				SDKROOT = macosx;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
@@ -938,7 +941,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "com.mousavian.FilesProvider-OSX";
 				SDKROOT = macosx;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
@@ -1051,6 +1054,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = macosx;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -1083,6 +1087,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.mousavian.FilesProviderTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = macosx;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:4.0
+// swift-tools-version:5.0
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription

Sources/AEXML/Element.swift

@@ -192,7 +192,7 @@ internal class AEXMLElement {
     }
 
     fileprivate func removeChild(_ child: AEXMLElement) {
-        if let childIndex = children.index(where: { $0 === child }) {
+        if let childIndex = children.firstIndex(where: { $0 === child }) {
             children.remove(at: childIndex)
         }
     }
@@ -266,7 +266,7 @@ internal class AEXMLElement {
 
 }
 
-public extension String {
+extension String {
 
     /// String representation of self with XML special characters escaped.
     public var xmlEscaped: String {

Sources/CloudFileProvider.swift

@@ -82,11 +82,7 @@ open class CloudFileProvider: LocalFileProvider, FileProviderSharing {
         super.init(baseURL: baseURL)
         self.isCoorinating = true
 
-        #if swift(>=3.1)
-            let queueLabel = "FileProvider.\(Swift.type(of: self).type)"
-        #else
-            let queueLabel = "FileProvider.\(type(of: self).type)"
-        #endif
+        let queueLabel = "FileProvider.\(Swift.type(of: self).type)"
         dispatch_queue = DispatchQueue(label: queueLabel, attributes: .concurrent)
         operation_queue = OperationQueue()
         operation_queue.name = "\(queueLabel).Operation"
@@ -570,6 +566,7 @@ extension CloudFileProvider {
             case .and: return NSCompoundPredicate(andPredicateWithSubpredicates: newSub)
             case .not: return NSCompoundPredicate(notPredicateWithSubpredicate: newSub.first!)
             case .or:  return NSCompoundPredicate(orPredicateWithSubpredicates: newSub)
+            @unknown default: fatalError()
             }
         } else if let cQuery = queryComponent as? NSComparisonPredicate {
             var newLeft = cQuery.leftExpression
@@ -599,11 +596,7 @@ extension CloudFileProvider {
         }
 
         let path = self.relativePathOf(url: url)
-        #if swift(>=4.0)
         let rpath = path.hasPrefix("/") ? String(path[path.index(after: path.startIndex)...]) : path
-        #else
-        let rpath = path.hasPrefix("/") ? path.substring(from: path.index(after: path.startIndex)) : path
-        #endif
         let relativeUrl = URL(string: rpath.addingPercentEncoding(withAllowedCharacters: .urlPathAllowed) ?? rpath, relativeTo: self.baseURL)
         let file = FileObject(url: relativeUrl ?? url, name: name, path: path)
 

Sources/DropboxFileProvider.swift

@@ -436,11 +436,11 @@ extension DropboxFileProvider: ExtendedFileProvider {
         case "jpg", "jpeg", "gif", "bmp", "png", "tif", "tiff":
             return true
         case "doc", "docx", "docm", "xls", "xlsx", "xlsm":
-            return true
+            return false
         case  "ppt", "pps", "ppsx", "ppsm", "pptx", "pptm":
-            return true
+            return false
         case "rtf":
-            return true
+            return false
         default:
             return false
         }

Sources/DropboxHelper.swift

@@ -72,8 +72,8 @@ public final class DropboxFileObject: FileObject {
     }
 }
 
-internal extension DropboxFileProvider {
-    internal func correctPath(_ path: String?) -> String? {
+extension DropboxFileProvider {
+    func correctPath(_ path: String?) -> String? {
         guard let path = path else { return nil }
         if path.hasPrefix("id:") || path.hasPrefix("rev:") {
             return path
@@ -85,7 +85,7 @@ internal extension DropboxFileProvider {
         return p
     }
 
-    internal func listRequest(path: String, queryStr: String? = nil, recursive: Bool = false) -> ((_ token: String?) -> URLRequest?) {
+    func listRequest(path: String, queryStr: String? = nil, recursive: Bool = false) -> ((_ token: String?) -> URLRequest?) {
         if let queryStr = queryStr {
             return { [weak self] (token) -> URLRequest? in
                 guard let `self` = self else { return nil }

Sources/ExtendedLocalFileProvider.swift

@@ -199,11 +199,7 @@ public struct LocalFileInformationGenerator {
     static public var audioThumbnail: (_ fileURL: URL, _ dimension: CGSize?) -> ImageClass? = { fileURL, dimension in
         let playerItem = AVPlayerItem(url: fileURL)
         let metadataList = playerItem.asset.commonMetadata
-        #if swift(>=4.0)
         let commonKeyArtwork = AVMetadataKey.commonKeyArtwork
-        #else
-        let commonKeyArtwork = AVMetadataCommonKeyArtwork
-        #endif
         for item in metadataList {
             if item.commonKey == commonKeyArtwork {
                 if let data = item.dataValue {
@@ -356,11 +352,7 @@ public struct LocalFileInformationGenerator {
         let playerItem = AVPlayerItem(url: fileURL)
         let metadataList = playerItem.asset.commonMetadata
         for item in metadataList {
-            #if swift(>=4.0)
-                let commonKey = item.commonKey?.rawValue
-            #else
-                let commonKey = item.commonKey
-            #endif
+            let commonKey = item.commonKey?.rawValue
             if let key = makeKeyDescription(commonKey) {
                 if commonKey == "location", let value = item.stringValue, let loc = parseLocationData(value) {
                     keys.append(key)
@@ -401,16 +393,12 @@ public struct LocalFileInformationGenerator {
             dic = audioprops.prop
             keys = audioprops.keys
             dic.removeValue(forKey: "Duration")
-            if let index = keys.index(of: "Duration") {
+            if let index = keys.firstIndex(of: "Duration") {
                 keys.remove(at: index)
             }
         }
         let asset = AVURLAsset(url: fileURL, options: nil)
-        #if swift(>=4.0)
         let videoTracks = asset.tracks(withMediaType: AVMediaType.video)
-        #else
-        let videoTracks = asset.tracks(withMediaType: AVMediaTypeVideo)
-        #endif
         if let videoTrack = videoTracks.first {
             var bitrate: Float = 0
             let width = Int(videoTrack.naturalSize.width)
@@ -424,11 +412,7 @@ public struct LocalFileInformationGenerator {
             add(key: "Duration", value: TimeInterval(duration).formatshort)
             add(key: "Video Bitrate", value: "\(Int(ceil(bitrate / 1000))) kbps")
         }
-        #if swift(>=4.0)
         let audioTracks = asset.tracks(withMediaType: AVMediaType.audio)
-        #else
-        let audioTracks = asset.tracks(withMediaType: AVMediaTypeAudio)
-        #endif
         // dic["Audio channels"] = audioTracks.count
         var bitrate: Float = 0
         for track in audioTracks {