static void Main(string[] args)
{
var hostBuilder = new RuntimeHostBuilder <Startup>();
var host = hostBuilder.Build();
host.Run();
}
public Task<int> Main(string[] args)
{
ILogger log = null;
try
{
ApplicationHostOptions options;
string[] programArgs;
int exitCode;
bool shouldExit = ParseArgs(args, out options, out programArgs, out exitCode);
if (shouldExit)
{
return Task.FromResult(exitCode);
}
string traceConfig =
string.IsNullOrEmpty(options.Trace) ?
Environment.GetEnvironmentVariable(EnvironmentNames.Trace) :
options.Trace;
// Initialize logging
RuntimeLogging.Initialize(traceConfig, ConfigureLogging);
// "Program" is a terrible name for a logger and this is the only logger in
// this namespace :).
log = RuntimeLogging.Logger("Microsoft.Framework.ApplicationHost");
log.LogInformation("Application Host Starting");
// Construct the necessary context for hosting the application
var builder = RuntimeHostBuilder.ForProjectDirectory(
options.ApplicationBaseDirectory,
NuGetFramework.Parse(_environment.RuntimeFramework.FullName),
_serviceProvider);
// Configure assembly loading
builder.Loaders.Add(new ProjectAssemblyLoaderFactory(
new LibraryExporter(
builder.TargetFramework,
builder.PackagePathResolver)));
builder.Loaders.Add(new PackageAssemblyLoaderFactory(builder.PackagePathResolver));
if (builder.Project == null)
{
// Failed to load the project
Console.Error.WriteLine("Unable to find a project.json file.");
return Task.FromResult(3);
}
// Boot the runtime
var host = builder.Build();
// Get the project and print some information from it
log.LogInformation($"Project: {host.Project.Name} ({host.Project.BaseDirectory})");
// Determine the command to be executed
var command = string.IsNullOrEmpty(options.ApplicationName) ? "run" : options.ApplicationName;
string replacementCommand;
if (host.Project.Commands.TryGetValue(command, out replacementCommand))
{
var replacementArgs = CommandGrammar.Process(
replacementCommand,
GetVariable).ToArray();
options.ApplicationName = replacementArgs.First();
programArgs = replacementArgs.Skip(1).Concat(programArgs).ToArray();
}
if (string.IsNullOrEmpty(options.ApplicationName) ||
string.Equals(options.ApplicationName, "run", StringComparison.Ordinal))
{
options.ApplicationName = host.Project.EntryPoint ?? host.Project.Name;
}
log.LogInformation($"Executing '{options.ApplicationName}' '{string.Join(" ", programArgs)}'");
return host.ExecuteApplication(
_loaderContainer,
_loadContextAccessor,
options.ApplicationName,
programArgs);
}
catch (Exception ex)
{
if (log != null)
{
log.LogError($"{ex.GetType().FullName} {ex.Message}", ex);
}
Console.Error.WriteLine($"Error loading project: {ex.Message}");
return Task.FromResult(1);
}
}
