Initial commit (history squashed)

src/StellaOps.Cli/Services/ScannerInstaller.cs

@@ -0,0 +1,79 @@
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Logging;
+
+namespace StellaOps.Cli.Services;
+
+internal sealed class ScannerInstaller : IScannerInstaller
+{
+    private readonly ILogger<ScannerInstaller> _logger;
+
+    public ScannerInstaller(ILogger<ScannerInstaller> logger)
+    {
+        _logger = logger ?? throw new ArgumentNullException(nameof(logger));
+    }
+
+    public async Task InstallAsync(string artifactPath, bool verbose, CancellationToken cancellationToken)
+    {
+        if (string.IsNullOrWhiteSpace(artifactPath) || !File.Exists(artifactPath))
+        {
+            throw new FileNotFoundException("Scanner artifact not found for installation.", artifactPath);
+        }
+
+        // Current implementation assumes docker-based scanner bundle.
+        var processInfo = new ProcessStartInfo
+        {
+            FileName = "docker",
+            ArgumentList = { "load", "-i", artifactPath },
+            RedirectStandardOutput = true,
+            RedirectStandardError = true,
+            UseShellExecute = false
+        };
+
+        using var process = new Process { StartInfo = processInfo, EnableRaisingEvents = true };
+
+        process.OutputDataReceived += (_, args) =>
+        {
+            if (args.Data is null)
+            {
+                return;
+            }
+
+            if (verbose)
+            {
+                _logger.LogInformation("[install] {Line}", args.Data);
+            }
+        };
+
+        process.ErrorDataReceived += (_, args) =>
+        {
+            if (args.Data is null)
+            {
+                return;
+            }
+
+            _logger.LogError("[install] {Line}", args.Data);
+        };
+
+        _logger.LogInformation("Installing scanner container from {Path}...", artifactPath);
+        if (!process.Start())
+        {
+            throw new InvalidOperationException("Failed to start container installation process.");
+        }
+
+        process.BeginOutputReadLine();
+        process.BeginErrorReadLine();
+
+        await process.WaitForExitAsync(cancellationToken).ConfigureAwait(false);
+
+        if (process.ExitCode != 0)
+        {
+            throw new InvalidOperationException($"Container installation failed with exit code {process.ExitCode}.");
+        }
+
+        _logger.LogInformation("Scanner container installed successfully.");
+    }
+}