Split minify options for CSS and JS

Sources/Generator/Files/Configuration.swift

@@ -21,12 +21,20 @@ struct Configuration: Codable {
     let fullScreenImageWidth: Int
 
     /**
-     Automatically minify all `.css` and `.js` resources which are copied
+     Automatically minify all `.css` resources which are copied
      to the output folder.
-     - Note: This option requires the `uglifyjs` and `clean-css` tools,
+     - Note: This option requires the `clean-css` tool,
      which can be installed using the `install.sh` script in the root folder of the generator.
      */
-    let minifyCSSandJS: Bool
+    let minifyCSS: Bool
+
+    /**
+     Automatically minify all `.js` resources which are copied
+     to the output folder.
+     - Note: This option requires the `uglifyjs` tool,
+     which can be installed using the `install.sh` script in the root folder of the generator.
+     */
+    let minifyJavaScript: Bool
 
     /**
      The path to the directory where the root element metadata is located.
@@ -76,8 +84,8 @@ struct Configuration: Codable {
         print("         Output folder: \(outputDirectory.path)")
         print("            Page width: \(pageImageWidth)")
         print("     Full-screen width: \(fullScreenImageWidth)")
-        print("     Minify JavaScript: \(minifyCSSandJS)")
-        print("            Minify CSS: \(minifyCSSandJS)")
+        print("     Minify JavaScript: \(minifyJavaScript)")
+        print("            Minify CSS: \(minifyCSS)")
         print(" Create markdown files: \(createMdFilesIfMissing)")
     }
 }

Sources/Generator/Processing/GenerationResultsHandler.swift

@@ -155,11 +155,11 @@ final class GenerationResultsHandler {
 
     private func markForCopyOrMinification(file: String, source: String) {
         let ext = file.lastComponentAfter(".")
-        if configuration.minifyCSSandJS, ext == "js" {
+        if configuration.minifyJavaScript, ext == "js" {
             files.toMinify[file] = (source, .js)
             return
         }
-        if configuration.minifyCSSandJS, ext == "css" {
+        if configuration.minifyCSS, ext == "css" {
             files.toMinify[file] = (source, .css)
             return
         }

Sources/Generator/run.swift

@@ -18,6 +18,10 @@ private func loadConfiguration(at configPath: String) -> Configuration? {
     print("                                                    ")
     print("    Configuration file: \(configPath)")
     let configUrl = URL(fileURLWithPath: configPath)
+    guard configUrl.exists else {
+        print("                 Error: Configuration file not found")
+        return nil
+    }
     var config: Configuration
     do {
         let data = try Data(contentsOf: configUrl)