Node detection

gistfile1.cs

        private const string PackageJsonFile = "package.json";
        private readonly string[] NodeDetectionFiles = new[] { "server.js", "app.js" };
        private const string WebConfigFile = "web.config";

        /// <summary>
        /// Add a web.config file if we detect a Node site
        /// </summary>
        private void AddIISNodeConfig(DeploymentContext context)
        {
            // If there is a config file already, don't do anything
            string webConfig = Path.Combine(context.OutputPath, WebConfigFile);
            if (File.Exists(webConfig)) return;

            foreach (var nodeDetectionFile in NodeDetectionFiles)
            {
                // If the node detection file exists, create an iisnode web.config file for it
                string fullPath = Path.Combine(context.OutputPath, nodeDetectionFile);
                if (File.Exists(fullPath))
                {
                    using (context.Tracer.Step(Resources.Log_CreatingNodeConfig))
                    {
                        context.Logger.Log(Resources.Log_CreatingNodeConfig);
                        File.WriteAllText(webConfig, String.Format(Resources.IisNodeWebConfig, nodeDetectionFile));
                        return;
                    }
                }
            }

            // If we couldn't treat it as a Node site, but it appears that the user expects it to be,
            // give a warning.
            if (LooksLikeNodeSite(context.OutputPath))
            {
                context.Logger.Log(Resources.Log_NodeWithMissingServerJs);
            }
        }

        private bool LooksLikeNodeSite(string webRoot)
        {
            // If it has a node_modules folder, it's likely Node
            if (Directory.Exists(Path.Combine(webRoot, "node_modules")))
            {
                return true;
            }

            // If it has any PHP/HTML files at the root, treat it as non-Node
            if (Directory.EnumerateFiles(webRoot, "*.php").Any() || Directory.EnumerateFiles(webRoot, "*.htm").Any() || Directory.EnumerateFiles(webRoot, "*.html").Any())
            {
                return false;
            }

            // Treat it as Node if it has at least one .js file at the root
            return Directory.EnumerateFiles(webRoot, "*.js").Any();
        }