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src/Yavsc/Startup/Startup.SanityChecks.cs

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+using System;
+using System.IO;
+using Google.Apis.Auth.OAuth2;
+using Microsoft.AspNet.Builder;
+using Microsoft.AspNet.Hosting;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+
+
+namespace Yavsc
+{
+    // ensures we may count on :
+    // * Google credentials
+    // * an AppData folder
+    public partial class Startup
+    {
+        public void CheckServices(IServiceCollection services)
+        {
+            
+        }
+
+        public void CheckApp(IApplicationBuilder app,
+                SiteSettings siteSettings, IHostingEnvironment env,
+                ILoggerFactory loggerFactory
+                )
+        {
+
+            var logger = loggerFactory.CreateLogger<Startup>();
+
+            var appData = Environment.GetEnvironmentVariable("APPDATA");
+            if (appData == null)
+            {
+                logger.LogWarning("AppData was not found in environment variables");
+                if (SiteSetup.DataDir == null) {
+                    SiteSetup.DataDir = "AppData"+env.EnvironmentName;
+                    logger.LogInformation("Using: "+SiteSetup.DataDir);
+                } else logger.LogInformation("Using value from settings: "+SiteSetup.DataDir);
+                    DirectoryInfo di = new DirectoryInfo(SiteSetup.DataDir);
+                if (!di.Exists)
+                {
+                    di.Create();
+                    logger.LogWarning("Created dir : "+di.FullName);
+                }
+                else logger.LogInformation("Using existing directory: "+di.Name);
+                SiteSetup.DataDir = Path.Combine(Directory.GetCurrentDirectory(),di.Name);
+                Environment.SetEnvironmentVariable("APPDATA", SiteSetup.DataDir);
+                logger.LogWarning("It has been set to : "+Environment.GetEnvironmentVariable("APPDATA"));
+            }
+
+        }
+    }
+}