Add new auto-update C# program

src/DistroGrubThemes.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <Authors>Adison Cavani</Authors>
+    <Company>Adison Cavani</Company>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="CommandLineParser" Version="2.8.0" />
+    <PackageReference Include="SharpZipLib" Version="1.3.3" />
+  </ItemGroup>
+
+</Project>

src/DistroGrubThemes.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31717.71
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DistroGrubThemes", "DistroGrubThemes.csproj", "{0CCFA519-E529-4AF9-B800-92FC96351EE9}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{0CCFA519-E529-4AF9-B800-92FC96351EE9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0CCFA519-E529-4AF9-B800-92FC96351EE9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0CCFA519-E529-4AF9-B800-92FC96351EE9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0CCFA519-E529-4AF9-B800-92FC96351EE9}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {C18C7214-AE56-46A5-8C62-8A5A2B8886D7}
+	EndGlobalSection
+EndGlobal

src/Program.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using CommandLine;
+
+namespace DistroGrubThemes
+{
+
+    internal class Program
+    {
+        string repoPath = string.Empty;
+        string iconsPath = string.Empty;
+        string customizePath = string.Empty;
+        string fontsPath = string.Empty;
+
+        static void Main(string[] args)
+        {
+            Parser.Default.ParseArguments<ProgramOptions>(args).WithParsed(RunOptions).WithNotParsed(HandleParseError);
+        }
+
+        static void RunOptions(ProgramOptions opts)
+        {
+            Program program = new Program();
+
+            if (string.IsNullOrWhiteSpace(opts.ArchivedFiles))
+            {
+                program.UpdateAssets();
+            }
+
+            else if(opts.ArchivedFiles == "all")
+            {
+                Console.WriteLine("Correct");
+            }
+
+            else
+            {
+                Console.WriteLine("DistroGrubThemes 1.0.0");
+                Console.WriteLine("Copyright (C) 2021 Adison Cavani\n");
+                Console.WriteLine("ERROR(S): ");
+                Console.WriteLine($"  Argument {opts.ArchivedFiles} is unknown.");
+                Console.WriteLine("\n  -a, --archive\tTest\n");
+            }
+        }
+
+        static void HandleParseError(IEnumerable<Error> errs)
+        {
+            Environment.Exit(1);
+        }
+
+        void UpdateAssets()
+        {
+            Console.Write("Repository path: ");
+            CheckRepoPath(Console.ReadLine());
+
+            iconsPath = repoPath + @"\assets\icons";
+            customizePath = repoPath + @"\customize";
+            fontsPath = repoPath + @"\font";
+
+            UpdateIcons();
+            UpdateFonts();
+        }
+
+        void UpdateIcons()
+        {
+            var icons = FilesArray(iconsPath);
+
+            foreach (var directory in CustomDirectories())
+            {
+                foreach (var icon in icons)
+                {
+                    File.Copy(iconsPath + @"\" + icon, directory + @"\icons\" + icon, true);
+                }
+            }
+        }
+
+        void UpdateFonts()
+        {
+            var fonts = FilesArray(fontsPath);
+
+            foreach (var directory in CustomDirectories())
+            {
+                foreach (var font in fonts)
+                {
+                    File.Copy(fontsPath + @"\" + font, directory + @"\" + font, true);
+                }
+            }
+        }
+
+        List<string> FilesArray(string folderPath)
+        {
+            return new List<string>(Directory.GetFiles(folderPath).Select(Path.GetFileName));
+        }
+
+        string[] CustomDirectories()
+        {
+            return Directory.GetDirectories(customizePath);
+        }
+
+        void CheckRepoPath(string path)
+        {
+            if (Directory.Exists(path) && path.Contains("distro-grub-themes"))
+            {
+                int index = path.IndexOf("distro-grub-themes") + 18;
+                repoPath = path.Substring(0, index);
+            }
+
+            else
+            {
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.WriteLine("ERROR: Could not find repository in this path!");
+                Console.ResetColor();
+                Environment.Exit(1);
+            }
+        }
+    }
+}

src/ProgramOptions.cs

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+using CommandLine;
+
+namespace DistroGrubThemes
+{
+    public class ProgramOptions
+    {
+        [Option('a', "archive", HelpText = "Create theme archive.")]
+        public string ArchivedFiles { get; set; }
+    }
+}