Refactor in one unique command with subcommand + add a new command to generate ressources from a configuration file

.swiftpm/xcode/xcshareddata/xcschemes/ResgenSwift-Package.xcscheme

@@ -160,6 +160,20 @@
                ReferencedContainer = "container:">
             </BuildableReference>
          </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "ColorTool"
+               BuildableName = "ColorTool"
+               BlueprintName = "ColorTool"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </BuildActionEntry>
       </BuildActionEntries>
    </BuildAction>
    <TestAction

.swiftpm/xcode/xcshareddata/xcschemes/ResgenSwift.xcscheme

@@ -34,6 +34,34 @@
                ReferencedContainer = "container:">
             </BuildableReference>
          </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "ToolCore"
+               BuildableName = "ToolCore"
+               BlueprintName = "ToolCore"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "ResgenSwift_ResgenSwift"
+               BuildableName = "ResgenSwift_ResgenSwift"
+               BlueprintName = "ResgenSwift_ResgenSwift"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </BuildActionEntry>
       </BuildActionEntries>
    </BuildAction>
    <TestAction

Package.resolved

@@ -9,6 +9,15 @@
           "revision": "e1465042f195f374b94f915ba8ca49de24300a0d",
           "version": "1.0.2"
         }
+      },
+      {
+        "package": "Yams",
+        "repositoryURL": "https://github.com/jpsim/Yams.git",
+        "state": {
+          "branch": null,
+          "revision": "01835dc202670b5bb90d07f3eae41867e9ed29f6",
+          "version": "5.0.1"
+        }
       }
     ]
   },

Package.swift

@@ -1,56 +1,67 @@
-// swift-tools-version:5.3
+// swift-tools-version:5.6
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription
 
 let package = Package(
     name: "ResgenSwift",
-    platforms: [.macOS(.v10_12)],
+    platforms: [.macOS(.v12)],
     dependencies: [
         // Dependencies declare other packages that this package depends on.
-        .package(url: "https://github.com/apple/swift-argument-parser", from: "1.0.0")
+        .package(url: "https://github.com/apple/swift-argument-parser", from: "1.0.0"),
+        .package(url: "https://github.com/jpsim/Yams.git", from: "5.0.1")
     ],
     targets: [
         // Targets are the basic building blocks of a package. A target can define a module or a test suite.
         // Targets can depend on other targets in this package, and on products in packages this package depends on.
-        .target(
+        .executableTarget(
             name: "ResgenSwift",
-            dependencies: ["FontTool", "ColorTool", "Strings", "Imagium"]
-        ),
-        .target(
-            name: "FontTool",
             dependencies: [
                 "ToolCore",
-                .product(name: "ArgumentParser", package: "swift-argument-parser")
-            ]
-        ),
-        .target(
-            name: "ColorTool",
-            dependencies: [
-                "ToolCore",
-                .product(name: "ArgumentParser", package: "swift-argument-parser")
-            ]
-        ),
-        .target(
-            name: "Strings",
-            dependencies: [
-                "ToolCore",
-                .product(name: "ArgumentParser", package: "swift-argument-parser")
-            ],
-            sources: ["."] // Force include all subdirectories
-        ),
-        .target(
-            name: "Imagium",
-            dependencies: [
-                "ToolCore",
-                .product(name: "ArgumentParser", package: "swift-argument-parser")
+                .product(name: "ArgumentParser", package: "swift-argument-parser"),
+                "Yams"
             ]
         ),
+        
+//        .executableTarget(
+//            name: "FontTool",
+//            dependencies: [
+//                "ToolCore",
+//                .product(name: "ArgumentParser", package: "swift-argument-parser")
+//            ]
+//        ),
+//
+//        .executableTarget(
+//            name: "ColorTool",
+//            dependencies: [
+//                "ToolCore",
+//                .product(name: "ArgumentParser", package: "swift-argument-parser")
+//            ]
+//        ),
+//
+//        .executableTarget(
+//            name: "Strings",
+//            dependencies: [
+//                "ToolCore",
+//                .product(name: "ArgumentParser", package: "swift-argument-parser")
+//            ],
+//            sources: ["."] // Force include all subdirectories
+//        ),
+//
+//        .executableTarget(
+//            name: "Imagium",
+//            dependencies: [
+//                "ToolCore",
+//                .product(name: "ArgumentParser", package: "swift-argument-parser")
+//            ]
+//        ),
+        
         // Helper targets
         .target(name: "ToolCore"),
+        
         // Test targets
-        .testTarget(
-            name: "ResgenSwiftTests",
-            dependencies: ["ResgenSwift"]),
+//        .testTarget(
+//            name: "ResgenSwiftTests",
+//            dependencies: ["ResgenSwift"]),
     ]
 )

README.md

@@ -121,7 +121,7 @@ swift run -c release Strings tags $FORCE_FLAG "./Tags/tags.txt" \
 5. `--extension-name` *(optional)* : name of class to add the extension
 6. `--extension-suffix` *(optional)* : additional text which is added to filename (ex: `AppTags+GreatApp.swift`)
 
-> ⚠️ If extension name is not set or is `Tags`, it will generate static property on `Tags`. This class may not exists in your project, just create an empty class named `Tags` is necessary.
+> ⚠️ If extension name is not set or is `Tags`, it will generate static property on `Tags`. `Tags` is a typealias of `String`.
 
 # Images
 

Sources/ColorTool/ColorToolError.swift

@@ -1,35 +0,0 @@
-//
-//  ColorToolError.swift
-//  
-//
-//  Created by Thibaut Schmitt on 20/12/2021.
-//
-
-import Foundation
-
-enum ColorToolError: Error {
-    case badFormat(String)
-    case writeAsset(String)
-    case writeExtension(String, String)
-    case fileNotExists(String)
-    case badColorDefinition(String, String)
-    
-    var description: String {
-        switch self {
-        case .badFormat(let info):
-            return "error:[ColorTool] Bad line format: \(info). Accepted format are: colorName=\"#RGB/#ARGB\"; colorName \"#RGB/#ARGB\"; colorName \"#RGB/#ARGB\" \"#RGB/#ARGB\""
-            
-        case .writeAsset(let info):
-            return "error:[ColorTool] An error occured while writing color in Xcasset: \(info)"
-            
-        case .writeExtension(let filename, let info):
-            return "error:[ColorTool] An error occured while writing extension in \(filename): \(info)"
-            
-        case .fileNotExists(let filename):
-            return "error:[ColorTool] File \(filename) does not exists"
-            
-        case .badColorDefinition(let lightColor, let darkColor):
-            return "error:[ColorTool]One of these two colors has invalid synthax: -\(lightColor)- or -\(darkColor)-"
-        }
-    }
-}

Sources/Imagium/ImagiumError.swift

@@ -1,43 +0,0 @@
-//
-//  ImagiumError.swift
-//  
-//
-//  Created by Thibaut Schmitt on 24/01/2022.
-//
-
-import Foundation
-
-enum ImagiumError: Error {
-    case inputFolderNotFound(String)
-    case fileNotExists(String)
-    case unknownImageExtension(String)
-    case getFileAttributed(String, String)
-    case rsvgConvertNotFound
-    case writeFile(String, String)
-    case unknown(String)
-    
-    var localizedDescription: String {
-        switch self {
-        case .inputFolderNotFound(let inputFolder):
-            return " error:[\(Imagium.toolName)] Input folder not found: \(inputFolder)"
-            
-        case .fileNotExists(let filename):
-            return " error:[\(Imagium.toolName)] File \(filename) does not exists"
-            
-        case .unknownImageExtension(let filename):
-            return " error:[\(Imagium.toolName)] File \(filename) have an unhandled file extension. Cannot generate image."
-            
-        case .getFileAttributed(let filename, let errorDescription):
-            return " error:[\(Imagium.toolName)] Getting file attributes of \(filename) failed with error: \(errorDescription)"
-            
-        case .rsvgConvertNotFound:
-            return " error:[\(Imagium.toolName)] Can't find rsvg-convert (can be installed with 'brew remove imagemagick && brew install imagemagick --with-librsvg')"
-            
-        case .writeFile(let subErrorDescription, let filename):
-            return " error:[\(Imagium.toolName)] An error occured while writing content to \(filename): \(subErrorDescription)"
-            
-        case .unknown(let errorDescription):
-            return " error:[\(Imagium.toolName)] Unknown error: \(errorDescription)"
-        }
-    }
-}

Sources/ResgenSwift/Colors/Colors.swift

@@ -9,7 +9,7 @@ import ToolCore
 import Foundation
 import ArgumentParser
 
-struct ColorTool: ParsableCommand {
+struct Colors: ParsableCommand {
     
     // MARK: - CommandConfiguration
     
@@ -20,7 +20,7 @@ struct ColorTool: ParsableCommand {
     
     // MARK: - Static
     
-    static let toolName = "ColorTool"
+    static let toolName = "Color"
     static let defaultExtensionName = "UIColor"
     static let assetsColorsFolderName = "Colors"
     
@@ -39,7 +39,7 @@ struct ColorTool: ParsableCommand {
     
     // MARK: - Command options
     
-    @OptionGroup var options: ColorToolOptions
+    @OptionGroup var options: ColorsToolOptions
     
     // MARK: - Run
     
@@ -79,16 +79,16 @@ struct ColorTool: ParsableCommand {
         
         // Check if input file exists
         guard fileManager.fileExists(atPath: options.inputFile) else {
-            let error = ColorToolError.fileNotExists(options.inputFile)
+            let error = ColorsToolError.fileNotExists(options.inputFile)
             print(error.localizedDescription)
-            ColorTool.exit(withError: error)
+            Colors.exit(withError: error)
         }
         
         // Check if xcassets file exists
         guard fileManager.fileExists(atPath: options.xcassetsPath) else {
-            let error = ColorToolError.fileNotExists(options.xcassetsPath)
+            let error = ColorsToolError.fileNotExists(options.xcassetsPath)
             print(error.localizedDescription)
-            ColorTool.exit(withError: error)
+            Colors.exit(withError: error)
         }
         
         // Check if needed to regenerate
@@ -107,8 +107,6 @@ struct ColorTool: ParsableCommand {
     }
 }
 
-ColorTool.main()
-
 /*
  Command samples:
  

Sources/ResgenSwift/Colors/ColorsToolError.swift

@@ -0,0 +1,35 @@
+//
+//  ColorsToolError.swift
+//  
+//
+//  Created by Thibaut Schmitt on 20/12/2021.
+//
+
+import Foundation
+
+enum ColorsToolError: Error {
+    case badFormat(String)
+    case writeAsset(String)
+    case writeExtension(String, String)
+    case fileNotExists(String)
+    case badColorDefinition(String, String)
+    
+    var description: String {
+        switch self {
+        case .badFormat(let info):
+            return "error:[\(Colors.toolName)] Bad line format: \(info). Accepted format are: colorName=\"#RGB/#ARGB\"; colorName \"#RGB/#ARGB\"; colorName \"#RGB/#ARGB\" \"#RGB/#ARGB\""
+            
+        case .writeAsset(let info):
+            return "error:[\(Colors.toolName)] An error occured while writing color in Xcasset: \(info)"
+            
+        case .writeExtension(let filename, let info):
+            return "error:[\(Colors.toolName)] An error occured while writing extension in \(filename): \(info)"
+            
+        case .fileNotExists(let filename):
+            return "error:[\(Colors.toolName)] File \(filename) does not exists"
+            
+        case .badColorDefinition(let lightColor, let darkColor):
+            return "error:[\(Colors.toolName)]One of these two colors has invalid synthax: -\(lightColor)- or -\(darkColor)-"
+        }
+    }
+}

Sources/ResgenSwift/Colors/ColorsToolOptions.swift

@@ -1,5 +1,5 @@
 //
-//  ColorToolOptions.swift
+//  ColorsToolOptions.swift
 //  
 //
 //  Created by Thibaut Schmitt on 17/01/2022.
@@ -8,7 +8,7 @@
 import Foundation
 import ArgumentParser
 
-struct ColorToolOptions: ParsableArguments {
+struct ColorsToolOptions: ParsableArguments {
     @Flag(name: [.customShort("f"), .customShort("F")], help: "Should force generation")
     var forceGeneration = false
     
@@ -25,13 +25,13 @@ struct ColorToolOptions: ParsableArguments {
     var extensionOutputPath: String
     
     @Option(help: "Extension name. If not specified, it will generate an UIColor extension. Using default extension name will generate static property.")
-    var extensionName: String = ColorTool.defaultExtensionName
+    var extensionName: String = Colors.defaultExtensionName
     
     @Option(help: "Extension suffix. Ex: MyApp, it will generate {extensionName}+ColorsMyApp.swift")
     var extensionSuffix: String = ""
 }
 
-extension ColorToolOptions {
+extension ColorsToolOptions {
     var colorStyle: ColorStyle {
         ColorStyle(rawValue: style) ?? .all
     }

Sources/ResgenSwift/Colors/Generator/ColorExtensionGenerator.swift

@@ -33,15 +33,15 @@ struct ColorExtensionGenerator {
         do {
             try extensionContent.write(to: extensionFilePathURL, atomically: true, encoding: .utf8)
         } catch (let error) {
-            let error = ColorToolError.writeExtension(extensionFilePath, error.localizedDescription)
+            let error = ColorsToolError.writeExtension(extensionFilePath, error.localizedDescription)
             print(error.localizedDescription)
-            ColorTool.exit(withError: error)
+            Colors.exit(withError: error)
         }
     }
     
     private static func getHeader(extensionClassname: String) -> String {
         """
-        // Generated by ResgenSwift.\(ColorTool.toolName) \(ResgenSwiftVersion)
+        // Generated by ResgenSwift.\(Colors.toolName) \(ResgenSwiftVersion)
 
         import UIKit
 

Sources/ResgenSwift/Colors/Generator/ColorXcassetHelper.swift

@@ -31,9 +31,9 @@ struct ColorXcassetHelper {
         do {
             try color.contentsJSON().write(to: contentsJsonPathURL, atomically: true, encoding: .utf8)
         } catch (let error) {
-            let error = ColorToolError.writeAsset(error.localizedDescription)
+            let error = ColorsToolError.writeAsset(error.localizedDescription)
             print(error.localizedDescription)
-            ColorTool.exit(withError: error)
+            Colors.exit(withError: error)
         }
     }
 }

Sources/ResgenSwift/Colors/Model/ColorStyle.swift

@@ -1,5 +1,5 @@
 //
-//  File.swift
+//  ColorStyle.swift
 //  
 //
 //  Created by Thibaut Schmitt on 29/08/2022.

Sources/ResgenSwift/Colors/Model/ParsedColor.swift

@@ -25,9 +25,9 @@ struct ParsedColor {
         }
         
         guard allComponents.contains(true) == false else {
-            let error = ColorToolError.badColorDefinition(light, dark)
+            let error = ColorsToolError.badColorDefinition(light, dark)
             print(error.localizedDescription)
-            ColorTool.exit(withError: error)
+            Colors.exit(withError: error)
         }
         
         return """

Sources/ResgenSwift/Colors/Parser/ColorFileParser.swift

@@ -1,5 +1,5 @@
 //
-//  File.swift
+//  ColorFileParser.swift
 //  
 //
 //  Created by Thibaut Schmitt on 29/08/2022.
@@ -22,16 +22,16 @@ class ColorFileParser {
                 .replacingOccurrences(of: "=", with: "") // Keep compat with current file format
             
             guard colorLineCleanedUp.hasPrefix("#") == false, colorLineCleanedUp.isEmpty == false else {
-                print("[\(ColorTool.toolName)] ⚠️  BadFormat or empty line (line number: \(lineNumber + 1)). Skip this line")
+                print("[\(Colors.toolName)] ⚠️  BadFormat or empty line (line number: \(lineNumber + 1)). Skip this line")
                 return nil
             }
             
             let colorContent = colorLineCleanedUp.split(separator: " ")
             
             guard colorContent.count >= 2 else {
-                let error = ColorToolError.badFormat(colorLine)
+                let error = ColorsToolError.badFormat(colorLine)
                 print(error.localizedDescription)
-                ColorTool.exit(withError: error)
+                Colors.exit(withError: error)
             }
             
             switch colorStyle {

Sources/ResgenSwift/Fonts/FontOptions.swift

@@ -1,5 +1,5 @@
 //
-//  FontOptions.swift
+//  FontsOptions.swift
 //  
 //
 //  Created by Thibaut Schmitt on 17/01/2022.
@@ -8,7 +8,7 @@
 import Foundation
 import ArgumentParser
 
-struct FontOptions: ParsableArguments {
+struct FontsOptions: ParsableArguments {
     @Flag(name: [.customShort("f"), .customShort("F")], help: "Should force generation")
     var forceGeneration = false
     
@@ -19,8 +19,25 @@ struct FontOptions: ParsableArguments {
     var extensionOutputPath: String
     
     @Option(help: "Extension name. If not specified, it will generate an UIFont extension. Using default extension name will generate static property.")
-    var extensionName: String = FontTool.defaultExtensionName
+    var extensionName: String = Fonts.defaultExtensionName
     
     @Option(help: "Extension suffix. Ex: MyApp, it will generate {extensionName}+FontsMyApp.swift")
     var extensionSuffix: String = ""
 }
+
+extension FontsOptions {
+    var extensionFileName: String {
+        if extensionSuffix.isEmpty == false {
+            return "\(extensionName)+\(extensionSuffix).swift"
+        }
+        return "\(extensionName).swift"
+    }
+    
+    var extensionFilePath: String {
+        "\(extensionOutputPath)/\(extensionFileName)"
+    }
+    
+    var generateStaticVariable: Bool {
+        extensionName == Fonts.defaultExtensionName
+    }
+}

Sources/ResgenSwift/Fonts/Fonts.swift

@@ -1,5 +1,5 @@
 //
-//  FontTool.swift
+//  Fonts.swift
 //  
 //
 //  Created by Thibaut Schmitt on 13/12/2021.
@@ -9,7 +9,7 @@ import ToolCore
 import Foundation
 import ArgumentParser
 
-struct FontTool: ParsableCommand {
+struct Fonts: ParsableCommand {
     
     // MARK: - CommandConfiguration
     
@@ -20,7 +20,7 @@ struct FontTool: ParsableCommand {
     
     // MARK: - Static
     
-    static let toolName = "FontTool"
+    static let toolName = "Fonts"
     static let defaultExtensionName = "UIFont"
     
     // MARK: - Properties
@@ -38,7 +38,7 @@ struct FontTool: ParsableCommand {
     
     // MARK: - Command Options
     
-    @OptionGroup var options: FontOptions
+    @OptionGroup var options: FontsOptions
     
     // MARK: - Run
     
@@ -55,7 +55,7 @@ struct FontTool: ParsableCommand {
         
         // Get real font names
         let inputFolder = URL(fileURLWithPath: options.inputFile).deletingLastPathComponent().relativePath
-        let fontsNames = FontToolHelper.getFontPostScriptName(for: fontsToGenerate,
+        let fontsNames = FontsToolHelper.getFontPostScriptName(for: fontsToGenerate,
                                                               inputFolder: inputFolder)
         
         // Generate extension
@@ -77,9 +77,9 @@ struct FontTool: ParsableCommand {
         
         // Check input file exists
         guard fileManager.fileExists(atPath: options.inputFile) else {
-            let error = FontToolError.fileNotExists(options.inputFile)
+            let error = FontsToolError.fileNotExists(options.inputFile)
             print(error.localizedDescription)
-            FontTool.exit(withError: error)
+            Fonts.exit(withError: error)
         }
         
         // Check if needed to regenerate
@@ -91,5 +91,3 @@ struct FontTool: ParsableCommand {
         return true
     }
 }
-
-FontTool.main()

Sources/ResgenSwift/Fonts/FontsToolError.swift

@@ -1,5 +1,5 @@
 //
-//  FontToolError.swift
+//  FontsToolError.swift
 //  
 //
 //  Created by Thibaut Schmitt on 13/12/2021.
@@ -7,7 +7,7 @@
 
 import Foundation
 
-enum FontToolError: Error {
+enum FontsToolError: Error {
     case fcScan(String, Int32, String?)
     case inputFolderNotFound(String)
     case fileNotExists(String)
@@ -16,16 +16,16 @@ enum FontToolError: Error {
     var localizedDescription: String {
         switch self {
         case .fcScan(let path, let code, let output):
-            return "error:[\(FontTool.toolName)] Error while getting fontName (fc-scan --format %{postscriptname} \(path). fc-scan exit with \(code) and output is: \(output ?? "no output")"
+            return "error:[\(Fonts.toolName)] Error while getting fontName (fc-scan --format %{postscriptname} \(path). fc-scan exit with \(code) and output is: \(output ?? "no output")"
             
         case .inputFolderNotFound(let inputFolder):
-            return " error:[\(FontTool.toolName)] Input folder not found: \(inputFolder)"
+            return " error:[\(Fonts.toolName)] Input folder not found: \(inputFolder)"
             
         case .fileNotExists(let filename):
-            return " error:[\(FontTool.toolName)] File \(filename) does not exists"
+            return " error:[\(Fonts.toolName)] File \(filename) does not exists"
             
         case .writeExtension(let filename, let info):
-            return "error:[\(FontTool.toolName)] An error occured while writing extension in \(filename): \(info)"
+            return "error:[\(Fonts.toolName)] An error occured while writing extension in \(filename): \(info)"
         }
     }
 }

Sources/ResgenSwift/Fonts/FontsToolHelper.swift

@@ -1,5 +1,5 @@
 //
-//  FontToolHelper.swift
+//  FontsToolHelper.swift
 //  
 //
 //  Created by Thibaut Schmitt on 13/12/2021.
@@ -8,7 +8,7 @@
 import Foundation
 import ToolCore
 
-class FontToolHelper {
+class FontsToolHelper {
     
     static func getFontPostScriptName(for fonts: [String], inputFolder: String) -> [FontName] {
         let fontsFilenames = Self.getFontsFilenames(fromInputFolder: inputFolder)
@@ -38,9 +38,9 @@ class FontToolHelper {
         // Get a enumerator for all files
         let fileManager = FileManager()
         guard fileManager.fileExists(atPath: inputFolder) else {
-            let error = FontToolError.inputFolderNotFound(inputFolder)
+            let error = FontsToolError.inputFolderNotFound(inputFolder)
             print(error.localizedDescription)
-            FontTool.exit(withError: error)
+            Fonts.exit(withError: error)
         }
         
         let enumerator: FileManager.DirectoryEnumerator = fileManager.enumerator(atPath: inputFolder)!
@@ -63,9 +63,9 @@ class FontToolHelper {
         let task = Shell.shell("fc-scan", "--format", "%{postscriptname}", path)
         
         guard let fontName = task.output, task.terminationStatus == 0 else {
-            let error = FontToolError.fcScan(path, task.terminationStatus, task.output)
+            let error = FontsToolError.fcScan(path, task.terminationStatus, task.output)
             print(error.localizedDescription)
-            FontTool.exit(withError: error)
+            Fonts.exit(withError: error)
         }
         
         return fontName

Sources/ResgenSwift/Fonts/Generator/FontPlistGenerator.swift

@@ -1,5 +1,5 @@
 //
-//  File.swift
+//  FontPlistGenerator.swift
 //  
 //
 //  Created by Thibaut Schmitt on 29/08/2022.

Sources/ResgenSwift/Fonts/Generator/FontToolContentGenerator.swift

@@ -31,15 +31,15 @@ class FontExtensionGenerator {
         do {
             try extensionContent.write(to: extensionFilePathURL, atomically: true, encoding: .utf8)
         } catch (let error) {
-            let error = FontToolError.writeExtension(extensionFilePath, error.localizedDescription)
+            let error = FontsToolError.writeExtension(extensionFilePath, error.localizedDescription)
             print(error.localizedDescription)
-            FontTool.exit(withError: error)
+            Fonts.exit(withError: error)
         }
     }
     
     private static func getHeader(extensionClassname: String) -> String {
         """
-        // Generated by ResgenSwift.\(FontTool.toolName) \(ResgenSwiftVersion)
+        // Generated by ResgenSwift.\(Fonts.toolName) \(ResgenSwiftVersion)
         
         import UIKit
         
@@ -48,18 +48,18 @@ class FontExtensionGenerator {
     }
     
     private static func getFontNameEnum(fontsNames: [String]) -> String {
-        var enumDefinition = "\tenum FontName: String {\n"
+        var enumDefinition = "    enum FontName: String {\n"
         
         fontsNames.forEach {
-            enumDefinition += "\t\tcase \($0.removeCharacters(from: "[]+-_")) = \"\($0)\"\n"
+            enumDefinition += "        case \($0.removeCharacters(from: "[]+-_")) = \"\($0)\"\n"
         }
-        enumDefinition += "\t}\n"
+        enumDefinition += "    }\n"
         
         return enumDefinition
     }
     
     private static func getFontMethods(fontsNames: [FontName], staticVar: Bool) -> String {
-        let pragma = "\t// MARK: - Getter"
+        let pragma = "    // MARK: - Getter"
             
         var propertiesOrMethods: [String] = fontsNames
             .unique()

Sources/ResgenSwift/Fonts/Model/FontName.swift

@@ -1,5 +1,5 @@
 //
-//  File.swift
+//  FontName.swift
 //  
 //
 //  Created by Thibaut Schmitt on 29/08/2022.

Sources/ResgenSwift/Fonts/Parser/FontFileParser.swift

@@ -1,5 +1,5 @@
 //
-//  File.swift
+//  FontFileParser.swift
 //  
 //
 //  Created by Thibaut Schmitt on 29/08/2022.

Sources/ResgenSwift/Generate/Generate.swift

@@ -0,0 +1,51 @@
+//
+//  Generate.swift
+//  
+//
+//  Created by Thibaut Schmitt on 30/08/2022.
+//
+
+import ToolCore
+import Foundation
+import ArgumentParser
+
+struct Generate: ParsableCommand {
+    
+    // MARK: - CommandConfiguration
+    
+    static var configuration = CommandConfiguration(
+        abstract: "A utility to generate ressources based on a configuration file",
+        version: ResgenSwiftVersion
+    )
+    
+    // MARK: - Static
+    
+    static let toolName = "Generate"
+    
+    // MARK: - Command Options
+    
+    @OptionGroup var options: GenerateOptions
+    
+    // MARK: - Run
+    
+    public func run() throws {
+        print("[\(Self.toolName)] Starting Resgen with configuration: \(options.configurationFile)")
+        
+        // Parse
+        let configuration = ConfigurationFileParser.parse(options.configurationFile)
+        print("Found configurations :")
+        print("  - \(configuration.colors.count) colors configuration")
+        print("  - \(configuration.fonts.count) fonts configuration")
+        print("  - \(configuration.images.count) images configuration")
+        print("  - \(configuration.strings.count) strings configuration")
+        print("  - \(configuration.tags.count) tags configuration")
+        print()
+        // Execute commands
+        configuration.runnableConfigurations
+            .forEach {
+                $0.run(force: options.forceGeneration)
+            }
+        
+        print("[\(Self.toolName)] Resgen ended")
+    }
+}

Sources/ResgenSwift/Generate/GenerateError.swift

@@ -0,0 +1,30 @@
+//
+//  ResgenSwiftError.swift
+//  
+//
+//  Created by Thibaut Schmitt on 30/08/2022.
+//
+
+import Foundation
+
+enum GenerateError: Error {
+    case fileNotExists(String)
+    case invalidConfigurationFile(String)
+    case commandError([String], String)
+    
+    var localizedDescription: String {
+        switch self {
+        case .fileNotExists(let filename):
+            return " error:[\(Generate.toolName)] File \(filename) does not exists"
+    
+        case .invalidConfigurationFile(let filename):
+            return " error:[\(Generate.toolName)] File \(filename) is not a valid configuration file"
+            
+        case .commandError(let command, let terminationStatus):
+            let readableCommand = command
+                .map { $0 }
+                .joined(separator: " ")
+            return "error:[\(Generate.toolName)] An error occured while running command '\(readableCommand)'. Command terminate with status code: \(terminationStatus)"
+        }
+    }
+}

Sources/ResgenSwift/Generate/GenerateOptions.swift

@@ -0,0 +1,19 @@
+//
+//  GenerateOptions.swift
+//  
+//
+//  Created by Thibaut Schmitt on 30/08/2022.
+//
+
+import Foundation
+
+import Foundation
+import ArgumentParser
+
+struct GenerateOptions: ParsableArguments {
+    @Flag(name: [.customShort("f"), .customShort("F")], help: "Should force generation")
+    var forceGeneration = false
+    
+    @Argument(help: "Configuration file.", transform: { $0.replaceTiltWithHomeDirectoryPath() })
+    var configurationFile: String
+}

Sources/ResgenSwift/Generate/Model/ConfigurationFile.swift

@@ -0,0 +1,140 @@
+//
+//  ConfigurationFile.swift
+//  
+//
+//  Created by Thibaut Schmitt on 30/08/2022.
+//
+
+import Foundation
+
+struct ConfigurationFile: Codable, CustomDebugStringConvertible {
+    var colors: [ColorsConfiguration]
+    var fonts: [FontsConfiguration]
+    var images: [ImagesConfiguration]
+    var strings: [StringsConfiguration]
+    var tags: [TagsConfiguration]
+    
+    var runnableConfigurations: [Runnable] {
+        let runnables: [[Runnable]] = [colors, fonts, images, strings, tags]
+        return Array(runnables.joined())
+    }
+    
+    var debugDescription: String {
+        """
+        \(colors)
+        -----------
+        -----------
+        \(fonts)
+        -----------
+        -----------
+        \(images)
+        -----------
+        -----------
+        \(strings)
+        -----------
+        -----------
+        \(tags)
+        """
+    }
+}
+
+
+struct ColorsConfiguration: Codable, CustomDebugStringConvertible {
+    let inputFile: String
+    let style: String
+    let xcassetsPath: String
+    let extensionOutputPath: String
+    let extensionName: String?
+    let extensionSuffix: String?
+    
+    var debugDescription: String {
+        """
+        Colors configuration:
+            - Input file: \(inputFile)
+            - Style: \(style)
+            - Xcassets path: \(xcassetsPath)
+            - Extension output path: \(extensionOutputPath)
+            - Extension name: \(extensionName ?? "-")
+            - Extension suffix: \(extensionSuffix ?? "-")
+        """
+    }
+}
+
+struct FontsConfiguration: Codable, CustomDebugStringConvertible {
+    let inputFile: String
+    let extensionOutputPath: String
+    let extensionName: String?
+    let extensionSuffix: String?
+    
+    var debugDescription: String {
+        """
+        Fonts configuration:
+            - Input file: \(inputFile)
+            - Extension output path: \(extensionOutputPath)
+            - Extension name: \(extensionName ?? "-")
+            - Extension suffix: \(extensionSuffix ?? "-")
+        """
+    }
+}
+
+struct ImagesConfiguration: Codable, CustomDebugStringConvertible {
+    let inputFile: String
+    let xcassetsPath: String
+    let extensionOutputPath: String
+    let extensionName: String?
+    let extensionSuffix: String?
+    
+    var debugDescription: String {
+        """
+        Images configuration:
+            - Input file: \(inputFile)
+            - Xcassets path: \(xcassetsPath)
+            - Extension output path: \(extensionOutputPath)
+            - Extension name: \(extensionName ?? "-")
+            - Extension suffix: \(extensionSuffix ?? "-")
+        """
+    }
+}
+
+struct StringsConfiguration: Codable, CustomDebugStringConvertible {
+    let inputFile: String
+    let outputPath: String
+    let langs: String
+    let defaultLang: String
+    let extensionOutputPath: String
+    let extensionName: String?
+    let extensionSuffix: String?
+    
+    var debugDescription: String {
+        """
+        Strings configuration:
+            - Input file: \(inputFile)
+            - Output path: \(outputPath)
+            - Langs: \(langs)
+            - Default lang: \(defaultLang)
+            - Extension output path: \(extensionOutputPath)
+            - Extension name: \(extensionName ?? "-")
+            - Extension suffix: \(extensionSuffix ?? "-")
+        """
+    }
+}
+
+struct TagsConfiguration: Codable, CustomDebugStringConvertible {
+    let inputFile: String
+    let lang: String
+    let extensionOutputPath: String
+    let extensionName: String?
+    let extensionSuffix: String?
+    
+    var debugDescription: String {
+        """
+        Tags configuration:
+            - Input file: \(inputFile)
+            - Lang: \(lang)
+            - Extension output path: \(extensionOutputPath)
+            - Extension name: \(extensionName ?? "-")
+            - Extension suffix: \(extensionSuffix ?? "-")
+        """
+    }
+}
+

Sources/ResgenSwift/Generate/Parser/ConfigurationFileParser.swift

@@ -0,0 +1,27 @@
+//
+//  ConfigurationFileParser.swift
+//  
+//
+//  Created by Thibaut Schmitt on 30/08/2022.
+//
+
+import Foundation
+import Yams
+
+class ConfigurationFileParser {
+    static func parse(_ configurationFile: String) -> ConfigurationFile {
+        guard let data = FileManager().contents(atPath: configurationFile) else {
+            let error = GenerateError.fileNotExists(configurationFile)
+            print(error.localizedDescription)
+            Generate.exit(withError: error)
+        }
+        
+        guard let configuration = try? YAMLDecoder().decode(ConfigurationFile.self, from: data) else {
+            let error = GenerateError.invalidConfigurationFile(configurationFile)
+            print(error.localizedDescription)
+            Generate.exit(withError: error)
+        }
+        
+        return configuration
+    }
+}

Sources/ResgenSwift/Generate/ShellCommandable/ColorsConfiguration+ShellCommandable.swift

@@ -0,0 +1,43 @@
+//
+//  ColorsConfiguration+ShellCommandable.swift
+//  
+//
+//  Created by Thibaut Schmitt on 30/08/2022.
+//
+
+import Foundation
+
+extension ColorsConfiguration: Runnable {
+    func run(force: Bool) {
+        var args = [String]()
+        
+        if force {
+            args += ["-f"]
+        }
+        
+        args += [
+            inputFile,
+            "--style",
+            style,
+            "--xcassets-path",
+            xcassetsPath,
+            "--extension-output-path",
+            extensionOutputPath
+        ]
+        
+        if let extensionName = extensionName {
+            args += [
+                "--extension-name",
+                extensionName
+            ]
+        }
+        if let extensionSuffix = extensionSuffix {
+            args += [
+                "--extension-suffix",
+                extensionSuffix
+            ]
+        }
+        
+        Colors.main(args)
+    }
+}

Sources/ResgenSwift/Generate/ShellCommandable/FontsConfiguration+ShellCommandable.swift

@@ -0,0 +1,40 @@
+//
+//  FontsConfiguration+ShellCommandable.swift
+//  
+//
+//  Created by Thibaut Schmitt on 30/08/2022.
+//
+
+import Foundation
+
+extension FontsConfiguration: Runnable {
+    func run(force: Bool) {
+        var args = [String]()
+        
+        if force {
+            args += ["-f"]
+        }
+        
+        args += [
+            inputFile,
+            "--extension-output-path",
+            extensionOutputPath
+        ]
+        
+        if let extensionName = extensionName {
+            args += [
+                "--extension-name",
+                extensionName
+            ]
+        }
+        
+        if let extensionSuffix = extensionSuffix {
+            args += [
+                "--extension-suffix",
+                extensionSuffix
+            ]
+        }
+        
+        Fonts.main(args)
+    }
+}

Sources/ResgenSwift/Generate/ShellCommandable/ImagesConfiguration+ShellCommandable.swift

@@ -0,0 +1,41 @@
+//
+//  ImagesConfiguration+ShellCommandable.swift
+//  
+//
+//  Created by Thibaut Schmitt on 30/08/2022.
+//
+
+import Foundation
+
+extension ImagesConfiguration: Runnable {
+    func run(force: Bool) {
+        var args = [String]()
+        
+        if force {
+            args += ["-f"]
+        }
+        
+        args += [
+            inputFile,
+            "--xcassets-path",
+            xcassetsPath,
+            "--extension-output-path",
+            extensionOutputPath
+        ]
+        
+        if let extensionName = extensionName {
+            args += [
+                "--extension-name",
+                extensionName
+            ]
+        }
+        if let extensionSuffix = extensionSuffix {
+            args += [
+                "--extension-suffix",
+                extensionSuffix
+            ]
+        }
+        
+        Images.main(args)
+    }
+}

Sources/ResgenSwift/Generate/ShellCommandable/Runnable.swift

@@ -0,0 +1,13 @@
+//
+//  ShellCommandable.swift
+//  
+//
+//  Created by Thibaut Schmitt on 30/08/2022.
+//
+
+import Foundation
+
+protocol Runnable {
+    func run(force: Bool)
+}
+

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

@@ -0,0 +1,46 @@
+//
+//  StringsConfiguration+ShellCommandable.swift
+//  
+//
+//  Created by Thibaut Schmitt on 30/08/2022.
+//
+
+import Foundation
+
+extension StringsConfiguration: Runnable {
+    func run(force: Bool) {
+        var args = [String]()
+        
+        if force {
+            args += ["-f"]
+        }
+        
+        args += [
+            inputFile,
+            "--output-path",
+            outputPath,
+            "--langs",
+            langs,
+            "--default-lang",
+            defaultLang,
+            "--extension-output-path",
+            extensionOutputPath
+        ]
+        
+        if let extensionName = extensionName {
+            args += [
+                "--extension-name",
+                extensionName
+            ]
+        }
+        
+        if let extensionSuffix = extensionSuffix {
+            args += [
+                "--extension-suffix",
+                extensionSuffix
+            ]
+        }
+        
+        Stringium.main(args)
+    }
+}

Sources/ResgenSwift/Generate/ShellCommandable/TagsConfiguration+ShellCommandable.swift

@@ -0,0 +1,41 @@
+//
+//  TagsConfiguration+ShellCommandable.swift
+//  
+//
+//  Created by Thibaut Schmitt on 30/08/2022.
+//
+
+import Foundation
+
+extension TagsConfiguration: Runnable {
+    func run(force: Bool) {
+        var args = [String]()
+        
+        if force {
+            args += ["-f"]
+        }
+        
+        args += [
+            inputFile,
+            "--lang",
+            lang,
+            "--extension-output-path",
+            extensionOutputPath
+        ]
+        
+        if let extensionName = extensionName {
+            args += [
+                "--extension-name",
+                extensionName
+            ]
+        }
+        if let extensionSuffix = extensionSuffix {
+            args += [
+                "--extension-suffix",
+                extensionSuffix
+            ]
+        }
+        
+        Tags.main(args)
+    }
+}

Sources/ResgenSwift/Images/Extensions/FileManagerExtensions.swift

@@ -11,9 +11,9 @@ 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 = ImagiumError.unknown("Cannot enumerate file in \(directory)")
+            let error = ImagesError.unknown("Cannot enumerate file in \(directory)")
             print(error.localizedDescription)
-            Imagium.exit(withError: error)
+            Images.exit(withError: error)
         }
         
         for case let fileURL as URL in enumerator {
@@ -23,9 +23,9 @@ extension FileManager {
                     files.append(fileURL.relativePath)
                 }
             } catch {
-                let error = ImagiumError.getFileAttributed(fileURL.relativePath, error.localizedDescription)
+                let error = ImagesError.getFileAttributed(fileURL.relativePath, error.localizedDescription)
                 print(error.localizedDescription)
-                Imagium.exit(withError: error)
+                Images.exit(withError: error)
             }
         }
         return files
@@ -34,9 +34,9 @@ extension FileManager {
     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 = ImagiumError.unknown("Cannot enumerate imageset directory in \(directory)")
+            let error = ImagesError.unknown("Cannot enumerate imageset directory in \(directory)")
             print(error.localizedDescription)
-            Imagium.exit(withError: error)
+            Images.exit(withError: error)
         }
         
         for case let fileURL as URL in enumerator {
@@ -46,9 +46,9 @@ extension FileManager {
                     files.append(fileURL.lastPathComponent)
                 }
             } catch {
-                let error = ImagiumError.getFileAttributed(fileURL.relativePath, error.localizedDescription)
+                let error = ImagesError.getFileAttributed(fileURL.relativePath, error.localizedDescription)
                 print(error.localizedDescription)
-                Imagium.exit(withError: error)
+                Images.exit(withError: error)
             }
         }
         return files

Sources/ResgenSwift/Images/Generator/ImageExtensionGenerator.swift

@@ -58,9 +58,9 @@ class ImageExtensionGenerator {
         do {
             try extensionContent.write(to: extensionFilePathURL, atomically: true, encoding: .utf8)
         } catch (let error) {
-            let error = ImagiumError.writeFile(extensionFilePath, error.localizedDescription)
+            let error = ImagesError.writeFile(extensionFilePath, error.localizedDescription)
             print(error.localizedDescription)
-            Imagium.exit(withError: error)
+            Images.exit(withError: error)
         }
     }
     

Sources/ResgenSwift/Images/Generator/XcassetsGenerator.swift

@@ -1,5 +1,5 @@
 //
-//  File.swift
+//  XcassetsGenerator.swift
 //  
 //
 //  Created by Thibaut Schmitt on 24/01/2022.
@@ -24,7 +24,7 @@ class XcassetsGenerator {
     
     func generateXcassets(inputPath: String, imagesToGenerate: [ParsedImage], xcassetsPath: String) {
         let fileManager = FileManager()
-        let svgConverter = Imagium.getSvgConverterPath()
+        let svgConverter = Images.getSvgConverterPath()
         let allSubFiles = fileManager.getAllRegularFileIn(directory: inputPath)
         
         var generatedAssetsPaths = [String]()
@@ -47,9 +47,9 @@ class XcassetsGenerator {
                         return (subfile, "jepg")
                     }
                 }
-                let error = ImagiumError.unknownImageExtension(parsedImage.name)
+                let error = ImagesError.unknownImageExtension(parsedImage.name)
                 print(error.localizedDescription)
-                Imagium.exit(withError: error)
+                Images.exit(withError: error)
             }()
             
             // Create imageset folder

Sources/ResgenSwift/Images/Images.swift

@@ -1,5 +1,5 @@
 //
-//  Imagium.swift
+//  Images.swift
 //  
 //
 //  Created by Thibaut Schmitt on 24/01/2022.
@@ -9,7 +9,7 @@ import ToolCore
 import Foundation
 import ArgumentParser
 
-struct Imagium: ParsableCommand {
+struct Images: ParsableCommand {
     
     // MARK: - CommandConfiguration
     
@@ -20,7 +20,7 @@ struct Imagium: ParsableCommand {
     
     // MARK: - Static
     
-    static let toolName = "Imagium"
+    static let toolName = "Images"
     static let defaultExtensionName = "UIImage"
     
     // MARK: - Properties
@@ -35,7 +35,7 @@ struct Imagium: ParsableCommand {
     
     // MARK: - Command Options
     
-    @OptionGroup var options: ImagiumOptions
+    @OptionGroup var options: ImagesOptions
     
     // MARK: - Run
     
@@ -81,13 +81,13 @@ struct Imagium: ParsableCommand {
 
         // Input file
         guard fileManager.fileExists(atPath: options.inputFile) else {
-            let error = ImagiumError.fileNotExists(options.inputFile)
+            let error = ImagesError.fileNotExists(options.inputFile)
             print(error.localizedDescription)
-            Imagium.exit(withError: error)
+            Images.exit(withError: error)
         }
 
         // RSVG-Converter
-        _ = Imagium.getSvgConverterPath()
+        _ = Images.getSvgConverterPath()
 
         // Check if needed to regenerate
         guard GeneratorChecker.shouldGenerate(force: options.forceExecution, inputFilePath: options.inputFile, extensionFilePath: extensionFilePath) else {
@@ -107,10 +107,8 @@ struct Imagium: ParsableCommand {
             return taskSvgConverter.output!.removeCharacters(from: CharacterSet.whitespacesAndNewlines)
         }
         
-        let error = ImagiumError.rsvgConvertNotFound
+        let error = ImagesError.rsvgConvertNotFound
         print(error.localizedDescription)
-        Imagium.exit(withError: error)
+        Images.exit(withError: error)
     }
 }
-
-Imagium.main()

Sources/ResgenSwift/Images/ImagesError.swift

@@ -0,0 +1,43 @@
+//
+//  ImagesError.swift
+//  
+//
+//  Created by Thibaut Schmitt on 24/01/2022.
+//
+
+import Foundation
+
+enum ImagesError: Error {
+    case inputFolderNotFound(String)
+    case fileNotExists(String)
+    case unknownImageExtension(String)
+    case getFileAttributed(String, String)
+    case rsvgConvertNotFound
+    case writeFile(String, String)
+    case unknown(String)
+    
+    var localizedDescription: String {
+        switch self {
+        case .inputFolderNotFound(let inputFolder):
+            return " error:[\(Images.toolName)] Input folder not found: \(inputFolder)"
+            
+        case .fileNotExists(let filename):
+            return " error:[\(Images.toolName)] File \(filename) does not exists"
+            
+        case .unknownImageExtension(let filename):
+            return " error:[\(Images.toolName)] File \(filename) have an unhandled file extension. Cannot generate image."
+            
+        case .getFileAttributed(let filename, let errorDescription):
+            return " error:[\(Images.toolName)] Getting file attributes of \(filename) failed with error: \(errorDescription)"
+            
+        case .rsvgConvertNotFound:
+            return " error:[\(Images.toolName)] Can't find rsvg-convert (can be installed with 'brew remove imagemagick && brew install imagemagick --with-librsvg')"
+            
+        case .writeFile(let subErrorDescription, let filename):
+            return " error:[\(Images.toolName)] An error occured while writing content to \(filename): \(subErrorDescription)"
+            
+        case .unknown(let errorDescription):
+            return " error:[\(Images.toolName)] Unknown error: \(errorDescription)"
+        }
+    }
+}

Sources/ResgenSwift/Images/ImagesOptions.swift

@@ -8,7 +8,7 @@
 import Foundation
 import ArgumentParser
 
-struct ImagiumOptions: ParsableArguments {
+struct ImagesOptions: ParsableArguments {
     @Flag(name: .customShort("f"), help: "Should force script execution")
     var forceExecution = false
     
@@ -25,7 +25,7 @@ struct ImagiumOptions: ParsableArguments {
     var extensionOutputPath: String
     
     @Option(help: "Extension name. If not specified, it will generate an UIImage extension. Using default extension name will generate static property.")
-    var extensionName: String = Imagium.defaultExtensionName
+    var extensionName: String = Images.defaultExtensionName
     
     @Option(help: "Extension suffix. Ex: MyApp, it will generate {extensionName}+Image{extensionSuffix}.swift")
     var extensionSuffix: String = ""

Sources/ResgenSwift/Strings/Generator/TagsGenerator.swift

@@ -11,7 +11,7 @@ import CoreVideo
 
 class TagsGenerator {
     static func writeExtensionFiles(sections: [Section], lang: String, tags: [String], staticVar: Bool, extensionName: String, extensionFilePath: String) {
-        let extensionHeader = Self.getHeader(extensionClassname: extensionName)
+        let extensionHeader = Self.getHeader(extensionClassname: extensionName, staticVar: staticVar)
         let extensionFooter = Self.getFooter()
         
         let extensionContent: String = {
@@ -22,7 +22,7 @@ class TagsGenerator {
                     return // Go to next section
                 }
                 
-                content += "\n\t// MARK: - \(section.name)"
+                content += "\n    // MARK: - \(section.name)"
                 section.definitions.forEach { definition in
                     if staticVar {
                         content += "\n\n\(definition.getStaticProperty(forLang: lang))"
@@ -55,21 +55,19 @@ class TagsGenerator {
         }
     }
     
-    private static func getHeader(extensionClassname: String) -> String {
-            """
-            // Generated by ResgenSwift.Strings.Tags \(ResgenSwiftVersion)
+    private static func getHeader(extensionClassname: String, staticVar: Bool) -> String {
+        """
+        // Generated by ResgenSwift.Strings.Tags \(ResgenSwiftVersion)
         
-            // typelias Tags = String
+        \(staticVar ? "typelias Tags = String\n\n" : "")import UIKit
         
-            import UIKit
-            
-            extension \(extensionClassname) {
-            """
+        extension \(extensionClassname) {
+        """
     }
     
     private static func getFooter() -> String {
-            """
-            }
-            """
+        """
+        }
+        """
     }
 }

Sources/ResgenSwift/Strings/Stringium/Stringium.swift

@@ -27,8 +27,8 @@ struct Stringium: ParsableCommand {
     // MARK: - Properties
     
     var extensionFileName: String {
-        if options.extensionSuffix.isEmpty == false {
-            return "\(options.extensionName)+\(options.extensionSuffix).swift"
+        if let extensionSuffix = options.extensionSuffix {
+            return "\(options.extensionName)+\(extensionSuffix).swift"
         }
         return "\(options.extensionName).swift"
     }
@@ -47,8 +47,6 @@ struct Stringium: ParsableCommand {
     
     // MARK: - Command options
     
-    // The `@OptionGroup` attribute includes the flags, options, and
-    // arguments defined by another `ParsableArguments` type.
     @OptionGroup var options: StringiumOptions
     
     // MARK: - Run

Sources/ResgenSwift/Strings/Stringium/StringiumOptions.swift

@@ -34,7 +34,7 @@ struct StringiumOptions: ParsableArguments {
     var extensionName: String = Stringium.defaultExtensionName
     
     @Option(help: "Extension suffix. Ex: MyApp, it will generate {extensionName}+{extensionSuffix}.swift")
-    var extensionSuffix: String = ""
+    var extensionSuffix: String?
 }
 
 extension StringiumOptions {

Sources/ResgenSwift/Strings/Strings.swift

@@ -26,5 +26,5 @@ struct Strings: ParsableCommand {
     )
 }
 
-Strings.main()
+//Strings.main()
 

Sources/ResgenSwift/Strings/Tag/Tags.swift

@@ -28,8 +28,8 @@ struct Tags: ParsableCommand {
     // MARK: - Properties
     
     var extensionFileName: String {
-        if options.extensionSuffix.isEmpty == false {
-            return "\(options.extensionName)+\(options.extensionSuffix).swift"
+        if let extensionSuffix = options.extensionSuffix {
+            return "\(options.extensionName)+\(extensionSuffix).swift"
         }
         return "\(options.extensionName).swift"
     }
@@ -40,8 +40,6 @@ struct Tags: ParsableCommand {
     
     // MARK: - Command Options
     
-    // The `@OptionGroup` attribute includes the flags, options, and
-    // arguments defined by another `ParsableArguments` type.
     @OptionGroup var options: TagsOptions
     
     // MARK: - Run

Sources/ResgenSwift/Strings/Tag/TagsOptions.swift

@@ -25,5 +25,5 @@ struct TagsOptions: ParsableArguments {
     var extensionName: String = Tags.defaultExtensionName
     
     @Option(help: "Extension suffix. Ex: MyApp, it will generate {extensionName}+Tag{extensionSuffix}.swift")
-    var extensionSuffix: String = ""
+    var extensionSuffix: String?
 }

Sources/ResgenSwift/Strings/Twine/Twine.swift

@@ -33,8 +33,6 @@ struct Twine: ParsableCommand {
     
     // MARK: - Command Options
     
-    // The `@OptionGroup` attribute includes the flags, options, and
-    // arguments defined by another `ParsableArguments` type.
     @OptionGroup var options: TwineOptions
     
     // MARK: - Run

Sources/ResgenSwift/Strings/Twine/TwineOptions.swift

@@ -1,5 +1,5 @@
 //
-//  File.swift
+//  TwineOptions.swift
 //  
 //
 //  Created by Thibaut Schmitt on 10/01/2022.

Sources/ResgenSwift/main.swift

@@ -1 +1,35 @@
-print("Welcome ResgenSwift")
+//
+//  ResgenSwift.swift
+//
+//
+//  Created by Thibaut Schmitt on 13/12/2021.
+//
+
+import ToolCore
+import Foundation
+import ArgumentParser
+
+struct ResgenSwift: ParsableCommand {
+    
+    static var configuration = CommandConfiguration(
+        abstract: "A utility for generate ressources.",
+        version: ResgenSwiftVersion,
+
+        // Pass an array to `subcommands` to set up a nested tree of subcommands.
+        // With language support for type-level introspection, this could be
+        // provided by automatically finding nested `ParsableCommand` types.
+        subcommands: [
+            Colors.self,
+            Fonts.self,
+            Images.self,
+            Strings.self,
+            Generate.self
+        ]
+
+        // A default subcommand, when provided, is automatically selected if a
+        // subcommand is not given on the command line.
+        //defaultSubcommand: Twine.self
+    )
+}
+
+ResgenSwift.main()

Sources/ToolCore/Shell.swift

@@ -10,14 +10,14 @@ import Foundation
 public class Shell {
     
     @discardableResult
-    public static func shell(_ args: String...) -> (terminationStatus: Int32, output: String?) {
+    public static func shell(launchPath: String = "/usr/bin/env", _ args: String...) -> (terminationStatus: Int32, output: String?) {
         let task = Process()
-        task.launchPath = "/usr/bin/env"
+        task.launchPath = launchPath
         task.arguments = args
         
         let pipe = Pipe()
         task.standardOutput = pipe
-        task.launch()
+        try? task.run()
         task.waitUntilExit()
         
         let data = pipe.fileHandleForReading.readDataToEndOfFile()
@@ -30,9 +30,9 @@ public class Shell {
     }
     
     @discardableResult
-    public static func shell(_ args: [String]) -> (terminationStatus: Int32, output: String?) {
+    public static func shell(launchPath: String = "/usr/bin/env", _ args: [String]) -> (terminationStatus: Int32, output: String?) {
         let task = Process()
-        task.launchPath = "/usr/bin/env"
+        task.launchPath = launchPath
         task.arguments = args
         
         let pipe = Pipe()