Optional generation of extension (R.xx)

Optional generation of Colors/Fonts/Images/Stringium extension

Fix swiftlint warning

Sources/ResgenSwift/Fonts/FontOptions.swift

@@ -18,20 +18,20 @@ struct FontsOptions: ParsableArguments {
     @Argument(help: "Input files where fonts ared defined.", transform: { $0.replaceTiltWithHomeDirectoryPath() })
     var inputFile: String
 
-    @Option(help: "Path where to generate the extension.", transform: { $0.replaceTiltWithHomeDirectoryPath() })
-    var extensionOutputPath: String
-
     @Option(help: "Tell if it will generate static properties or methods")
     var staticMembers: Bool = false
 
+    @Option(help: "Path where to generate the extension.", transform: { $0.replaceTiltWithHomeDirectoryPath() })
+    var extensionOutputPath: String
+
     @Option(help: "Extension name. If not specified, it will generate an Font extension.")
     var extensionName: String = Fonts.defaultExtensionName
 
-    @Option(help: "Extension name. If not specified, it will generate an UIFont extension.")
-    var extensionNameUIKit: String = Fonts.defaultExtensionNameUIKit
+    @Option(help: "Extension name. If not specified, no extension will be generated.")
+    var extensionNameUIKit: String?
 
     @Option(help: "Extension suffix. Ex: MyApp, it will generate {extensionName}+FontsMyApp.swift")
-    var extensionSuffix: String = ""
+    var extensionSuffix: String?
 
     @Option(name: .customLong("info-plist-paths"), help: "Info.plist paths (array). Will be used to update UIAppFonts content")
     fileprivate var infoPlistPathsRaw: String = ""
@@ -44,7 +44,7 @@ extension FontsOptions {
     // MARK: - SwiftUI
 
     var extensionFileName: String {
-        if extensionSuffix.isEmpty == false {
+        if let extensionSuffix {
             return "\(extensionName)+\(extensionSuffix).swift"
         }
         return "\(extensionName).swift"
@@ -56,15 +56,19 @@ extension FontsOptions {
 
     // MARK: - UIKit
 
-    var extensionFileNameUIKit: String {
-        if extensionSuffix.isEmpty == false {
+    var extensionFileNameUIKit: String? {
+        guard let extensionNameUIKit else { return nil }
+
+        if let extensionSuffix {
             return "\(extensionNameUIKit)+\(extensionSuffix).swift"
         }
         return "\(extensionNameUIKit).swift"
     }
 
-    var extensionFilePathUIKit: String {
-        "\(extensionOutputPath)/\(extensionFileNameUIKit)"
+    var extensionFilePathUIKit: String? {
+        guard let extensionFileNameUIKit else { return nil }
+
+        return "\(extensionOutputPath)/\(extensionFileNameUIKit)"
     }
 
     // MARK: - 

Sources/ResgenSwift/Fonts/Fonts.swift

@@ -22,7 +22,6 @@ struct Fonts: ParsableCommand {
 
     static let toolName = "Fonts"
     static let defaultExtensionName = "Font"
-    static let defaultExtensionNameUIKit = "UIFont"
 
     // MARK: - Command Options
 
@@ -61,16 +60,25 @@ struct Fonts: ParsableCommand {
             isSwiftUI: true
         )
 
-        FontExtensionGenerator.writeExtensionFile(
-            fontsNames: fontsNames,
-            staticVar: options.staticMembers,
-            extensionName: options.extensionNameUIKit,
-            extensionFilePath: options.extensionFilePathUIKit,
-            isSwiftUI: false
-        )
+        if let extensionNameUIKit = options.extensionNameUIKit,
+           let extensionFilePathUIKit = options.extensionFilePathUIKit {
+            FontExtensionGenerator.writeExtensionFile(
+                fontsNames: fontsNames,
+                staticVar: options.staticMembers,
+                extensionName: extensionNameUIKit,
+                extensionFilePath: extensionFilePathUIKit,
+                isSwiftUI: false
+            )
+        }
 
-        print("Info.plist has been updated with:")
-        print("\(FontPlistGenerator.generatePlistUIAppsFontContent(for: fontsNames, infoPlistPaths: options.infoPlistPaths))")
+        if options.infoPlistPaths.isEmpty == false {
+            let plistUpdateFontsData = FontPlistGenerator.generatePlistUIAppsFontContent(
+                for: fontsNames,
+                infoPlistPaths: options.infoPlistPaths
+            )
+            print("Info.plist has been updated with:")
+            print(plistUpdateFontsData)
+        }
 
         print("[\(Self.toolName)] Fonts generated")
     }

Sources/ResgenSwift/Fonts/FontsToolError.swift

@@ -14,6 +14,7 @@ enum FontsToolError: Error {
     case inputFolderNotFound(String)
     case fileNotExists(String)
     case writeExtension(String, String)
+    case missingExtensionPath
 
     var description: String {
         switch self {
@@ -31,6 +32,9 @@ enum FontsToolError: Error {
 
         case let .writeExtension(filename, info):
             return "error: [\(Fonts.toolName)] An error occured while writing extension in \(filename): \(info)"
+
+        case .missingExtensionPath:
+            return "error: [\(Fonts.toolName)] Extension need to be generated but no `extensionOutputPath` is provided"
         }
     }
 }