Optional generation of Strings extension (stringium command)

Sources/ResgenSwift/Generate/Model/ConfigurationFile.swift

@@ -280,7 +280,7 @@ struct StringsConfiguration: Codable, CustomDebugStringConvertible {
     let outputPath: String
     let langs: String
     let defaultLang: String
-    let extensionOutputPath: String
+    let extensionOutputPath: String?
     let extensionName: String?
     let extensionSuffix: String?
     private let staticMembers: Bool?
@@ -305,7 +305,7 @@ struct StringsConfiguration: Codable, CustomDebugStringConvertible {
         outputPath: String,
         langs: String,
         defaultLang: String,
-        extensionOutputPath: String,
+        extensionOutputPath: String?,
         extensionName: String?,
         extensionSuffix: String?,
         staticMembers: Bool?,
@@ -329,7 +329,7 @@ struct StringsConfiguration: Codable, CustomDebugStringConvertible {
             - Output path: \(outputPath)
             - Langs: \(langs)
             - Default lang: \(defaultLang)
-            - Extension output path: \(extensionOutputPath)
+            - Extension output path: \(extensionOutputPath ?? "-")
             - Extension name: \(extensionName ?? "-")
             - Extension suffix: \(extensionSuffix ?? "-")
         """

Sources/ResgenSwift/Generate/Runnable/StringsConfiguration+Runnable.swift

@@ -24,26 +24,24 @@ extension StringsConfiguration: Runnable {
             langs,
             "--default-lang",
             defaultLang,
-            "--extension-output-path",
-            extensionOutputPath.prependIfRelativePath(projectDirectory),
             "--static-members",
             "\(staticMembersOptions)",
             "--xc-strings",
             "\(xcStringsOptions)"
         ]
 
-        if let extensionName {
-            args += [
-                "--extension-name",
-                extensionName
-            ]
-        }
-
-        if let extensionSuffix {
-            args += [
-                "--extension-suffix",
-                extensionSuffix
-            ]
+        // Add optional parameters
+        [
+            ("--extension-output-path", extensionOutputPath?.prependIfRelativePath(projectDirectory)),
+            ("--extension-name", extensionName),
+            ("--extension-suffix", extensionSuffix)
+        ].forEach { argumentName, argumentValue in
+            if let argumentValue {
+                args += [
+                    argumentName,
+                    argumentValue
+                ]
+            }
         }
 
         Stringium.main(args)