/
HostBuilderExtensions.cs
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/
HostBuilderExtensions.cs
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using System.IO;
using System.Linq;
using System.Reflection;
using Downlink.Composition;
using Downlink.Hosting;
using Downlink.Infrastructure;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
namespace Downlink
{
public static class HostBuilderExtensions
{
public static IWebHostBuilder ConfigureLogging(this IWebHostBuilder builder) =>
builder.ConfigureLogging((ctx, factory) =>
{
factory.AddConfiguration(ctx.Configuration.GetSection("Logging"));
factory.AddConsole();
factory.AddDebug();
});
internal static IWebHostBuilder ConfigureAppConfiguration(this IWebHostBuilder builder, string[] args) =>
builder.ConfigureAppConfiguration((ctx, config) =>
{
var env = ctx.HostingEnvironment;
config.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
.AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true, reloadOnChange: true)
.AddConfigFile("config");
if (env.IsDevelopment())
{
var appAssembly = Assembly.Load(new AssemblyName(env.ApplicationName));
if (appAssembly != null)
{
config.AddUserSecrets(appAssembly, optional: true);
}
}
if (args != null)
{
config.AddCommandLine(args);
}
});
private static IConfigurationBuilder AddConfigFile(this IConfigurationBuilder config, string fileName)
{
fileName = fileName.Replace(".json", string.Empty).Replace(".yml", string.Empty);
config.AddJsonFile($"{fileName}.json", optional: true, reloadOnChange: true);
config.AddYamlFile($"{fileName}.yml", optional: true, reloadOnChange: true);
return config;
}
internal static IDownlinkBuilder AddLocalPlugins(this IDownlinkBuilder builder, bool forceEnable = false)
{
if (forceEnable)
{
try
{
var scanner = new PluginScanner();
var root = new DirectoryInfo(Directory.GetCurrentDirectory());
var dlls = root.GetFiles("Downlink.Extensions.*.dll").ToList();
if (Directory.Exists("Downlink.Extensions")) {
var extDir = new DirectoryInfo(Path.Combine(root.FullName, "Downlink.Extensions"));
dlls.AddRange(extDir.GetFiles("Downlink.Extensions.*.dll", SearchOption.AllDirectories));
}
var assemblies = dlls.Select(f => Assembly.LoadFile(f.FullName));
var modules = scanner.LoadModulesFromAssemblies(assemblies);
foreach (var plugin in modules)
{
builder.AddPlugin(plugin);
}
}
catch (System.Exception)
{
// ignored
}
}
return builder;
}
internal static IDownlinkBuilder AddLocalPlugins(this IDownlinkBuilder builder, IConfiguration config) {
var enable = config.GetValue("Experimental:EnableLocalPlugins", false);
return builder.AddLocalPlugins(enable);
}
}
}