Initial commit: Nix WSL Wrapper project with DDD, Clean Code, and tests
This commit is contained in:
Marek Novák
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using System;
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using System.Diagnostics;
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using System.Linq;
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using NixWslWrapper.Core.Domain;
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using NixWslWrapper.Core.Interfaces;
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using Spectre.Console;
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namespace NixWslWrapper.Cli
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{
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public class CliController
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{
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private readonly ICommandExecutor _commandExecutor;
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public CliController(ICommandExecutor commandExecutor)
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{
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_commandExecutor = commandExecutor ?? throw new ArgumentNullException(nameof(commandExecutor));
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}
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public int Run(string[] args)
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{
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// Intercept special configuration/status options
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if (args.Contains("--wsl-status", StringComparer.OrdinalIgnoreCase))
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{
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RenderStatusDashboard();
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return 0;
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}
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if (args.Contains("--wsl-help", StringComparer.OrdinalIgnoreCase))
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{
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RenderHelp();
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return 0;
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}
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// Get configuration from environment variables or use defaults
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string distro = Environment.GetEnvironmentVariable("NIX_WSL_DISTRO") ?? "Debian";
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string user = Environment.GetEnvironmentVariable("NIX_WSL_USER") ?? "root";
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string profile = Environment.GetEnvironmentVariable("NIX_WSL_PROFILE") ?? "/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh";
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WslTarget target;
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try
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{
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target = new WslTarget(distro, user, profile);
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}
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catch (Exception ex)
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{
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AnsiConsole.MarkupLine($"[red]Configuration Error:[/] {ex.Message}");
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return 1;
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}
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var nixArgs = new NixArguments(args);
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var result = _commandExecutor.Execute(nixArgs, target);
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if (!result.IsSuccess)
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{
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if (result.ErrorMessage != null)
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{
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AnsiConsole.MarkupLine($"[bold red]Execution Error:[/] {result.ErrorMessage}");
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}
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return result.ExitCode;
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}
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return result.ExitCode;
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}
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private static void RenderStatusDashboard()
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{
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AnsiConsole.Write(
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new FigletText("Nix WSL Wrapper")
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.Color(Color.DeepSkyBlue1));
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var panel = new Panel(
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new Markup(
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"[bold]Nix WSL Wrapper Diagnostic Dashboard[/]\n" +
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"Wraps native Windows MCP / CLI tool inputs and redirects them into Nix running inside WSL.\n\n" +
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$"[grey]Generated at: {DateTime.Now:yyyy-MM-dd HH:mm:ss}[/]"
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))
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{
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Border = BoxBorder.Rounded,
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Padding = new Padding(1, 1, 1, 1),
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Header = new PanelHeader("System Info")
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};
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AnsiConsole.Write(panel);
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// Fetch Environment details
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string distro = Environment.GetEnvironmentVariable("NIX_WSL_DISTRO") ?? "Debian (Default)";
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string user = Environment.GetEnvironmentVariable("NIX_WSL_USER") ?? "root (Default)";
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string profile = Environment.GetEnvironmentVariable("NIX_WSL_PROFILE") ?? "/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh (Default)";
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var table = new Table()
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.Border(TableBorder.Rounded)
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.BorderColor(Color.Grey)
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.AddColumn("[bold]Setting[/]")
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.AddColumn("[bold]Value[/]")
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.AddColumn("[bold]Source[/]");
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table.AddRow("WSL Target Distro", distro, Environment.GetEnvironmentVariable("NIX_WSL_DISTRO") != null ? "[green]Env Var[/]" : "[yellow]Fallback[/]");
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table.AddRow("WSL Execution User", user, Environment.GetEnvironmentVariable("NIX_WSL_USER") != null ? "[green]Env Var[/]" : "[yellow]Fallback[/]");
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table.AddRow("Nix Profile Path", profile, Environment.GetEnvironmentVariable("NIX_WSL_PROFILE") != null ? "[green]Env Var[/]" : "[yellow]Fallback[/]");
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AnsiConsole.Write(new Rule("[yellow]Configured Parameters[/]") { Justification = Justify.Left });
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AnsiConsole.Write(table);
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// Run WSL check
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AnsiConsole.Write(new Rule("[yellow]WSL Integration Status[/]") { Justification = Justify.Left });
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AnsiConsole.Status()
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.Spinner(Spinner.Known.Dots)
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.Start("Verifying WSL and Nix installation...", ctx =>
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{
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bool wslOk = false;
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string wslVersion = "Unknown";
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try
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{
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var psi = new ProcessStartInfo("wsl.exe", "--status")
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{
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RedirectStandardOutput = true,
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UseShellExecute = false,
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CreateNoWindow = true
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};
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using var p = Process.Start(psi);
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p?.WaitForExit(3000);
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wslOk = p?.ExitCode == 0;
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wslVersion = wslOk ? "WSL Active" : "WSL Error";
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}
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catch
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{
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wslVersion = "wsl.exe not found in PATH";
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}
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ctx.Status("Checking Nix inside WSL Distro...");
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bool nixOk = false;
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string nixVersion = "Not Found";
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if (wslOk)
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{
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try
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{
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string targetDistro = Environment.GetEnvironmentVariable("NIX_WSL_DISTRO") ?? "Debian";
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string targetUser = Environment.GetEnvironmentVariable("NIX_WSL_USER") ?? "root";
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string targetProfile = Environment.GetEnvironmentVariable("NIX_WSL_PROFILE") ?? "/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh";
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var psi = new ProcessStartInfo("wsl.exe", $"-d {targetDistro} -u {targetUser} -- sh -c \". {targetProfile} && nix --version\"")
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{
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RedirectStandardOutput = true,
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RedirectStandardError = true,
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UseShellExecute = false,
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CreateNoWindow = true
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};
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using var p = Process.Start(psi);
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p?.WaitForExit(5000);
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if (p?.ExitCode == 0)
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{
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nixOk = true;
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nixVersion = p.StandardOutput.ReadToEnd().Trim();
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}
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else
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{
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nixVersion = "Nix execution failed inside WSL";
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}
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}
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catch (Exception ex)
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{
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nixVersion = $"Error querying: {ex.Message}";
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}
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}
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// Render Checks
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var grid = new Grid().AddColumn().AddColumn();
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grid.AddRow(new Markup("wsl.exe Executable Status:"), wslOk ? new Markup("[green]✔ OK[/]") : new Markup($"[red]✘ FAILED ({wslVersion})[/]"));
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grid.AddRow(new Markup("Nix Engine in WSL Distro:"), nixOk ? new Markup($"[green]✔ OK ({nixVersion})[/]") : new Markup($"[red]✘ FAILED ({nixVersion})[/]"));
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AnsiConsole.Write(new Panel(grid) { Border = BoxBorder.None });
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});
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}
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private static void RenderHelp()
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{
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AnsiConsole.Write(
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new FigletText("Nix WSL Wrapper")
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.Color(Color.DeepSkyBlue1));
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AnsiConsole.MarkupLine("[bold]Usage:[/] nix.exe [[nix-arguments-to-forward]]");
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AnsiConsole.MarkupLine("[bold]Alternative flags (Wrapper specific):[/]");
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AnsiConsole.MarkupLine(" [yellow]--wsl-status[/] Displays diagnostic status of WSL and Nix integration.");
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AnsiConsole.MarkupLine(" [yellow]--wsl-help[/] Displays this help menu.");
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AnsiConsole.WriteLine();
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AnsiConsole.MarkupLine("[bold]Configuration Environment Variables:[/]");
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AnsiConsole.MarkupLine(" [green]NIX_WSL_DISTRO[/] The target WSL distribution name (default: [grey]Debian[/]).");
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AnsiConsole.MarkupLine(" [green]NIX_WSL_USER[/] The user to execute commands under (default: [grey]root[/]).");
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AnsiConsole.MarkupLine(" [green]NIX_WSL_PROFILE[/] The path to the nix-daemon profile script (default: [grey]/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh[/]).");
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}
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}
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}
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