Publish v1.0

Reviewed-on: #1

Sources/ResgenSwift/Images/Extensions/FileManagerExtensions.swift

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+//
+//  FileManagerExtensions.swift
+//  
+//
+//  Created by Thibaut Schmitt on 24/01/2022.
+//
+
+import Foundation
+
+extension FileManager {
+    func getAllRegularFileIn(directory: String) -> [String] {
+        var files = [String]()
+        guard let enumerator = self.enumerator(at: URL(string: directory)!, includingPropertiesForKeys: [.isRegularFileKey], options: [.skipsHiddenFiles, .skipsPackageDescendants]) else {
+            let error = ImagesError.unknown("Cannot enumerate file in \(directory)")
+            print(error.localizedDescription)
+            Images.exit(withError: error)
+        }
+        
+        for case let fileURL as URL in enumerator {
+            do {
+                let fileAttributes = try fileURL.resourceValues(forKeys:[.isRegularFileKey])
+                if fileAttributes.isRegularFile! {
+                    files.append(fileURL.relativePath)
+                }
+            } catch {
+                let error = ImagesError.getFileAttributed(fileURL.relativePath, error.localizedDescription)
+                print(error.localizedDescription)
+                Images.exit(withError: error)
+            }
+        }
+        return files
+    }
+    
+    func getAllImageSetFolderIn(directory: String) -> [String] {
+        var files = [String]()
+        guard let enumerator = self.enumerator(at: URL(string: directory)!, includingPropertiesForKeys: [.isDirectoryKey], options: [.skipsHiddenFiles, .skipsPackageDescendants]) else {
+            let error = ImagesError.unknown("Cannot enumerate imageset directory in \(directory)")
+            print(error.localizedDescription)
+            Images.exit(withError: error)
+        }
+        
+        for case let fileURL as URL in enumerator {
+            do {
+                let fileAttributes = try fileURL.resourceValues(forKeys:[.isDirectoryKey])
+                if fileAttributes.isDirectory! && fileURL.lastPathComponent.hasSuffix(".imageset") {
+                    files.append(fileURL.lastPathComponent)
+                }
+            } catch {
+                let error = ImagesError.getFileAttributed(fileURL.relativePath, error.localizedDescription)
+                print(error.localizedDescription)
+                Images.exit(withError: error)
+            }
+        }
+        return files
+    }
+}