public async Task Invoke(HttpContext context)
{
try
{
await _next(context);
}
catch (Exception ex)
{
_logger.LogError("An unhandled exception has occurred: "
+ ex.Message, ex);
throw; // Don't stop the error
}
}
public void Main(string[] args)
{
_logger.LogInformation("Starting");
var startTime = DateTimeOffset.UtcNow;
_logger.LogInformation(1, "Started at '{StartTime}' and 0x{Hello:X} is hex of 42", startTime, 42);
try
{
throw new Exception("Boom");
}
catch (Exception ex)
{
_logger.LogCritical("Unexpected critical error starting application", ex);
_logger.Log(LogLevel.Critical, 0, "Unexpected critical error", ex, null);
// This write should not log anything
_logger.Log(LogLevel.Critical, 0, null, null, null);
_logger.LogError("Unexpected error", ex);
_logger.LogWarning("Unexpected warning", ex);
}
using (_logger.BeginScopeImpl("Main"))
{
Console.WriteLine("Hello World");
_logger.LogInformation("Waiting for user input");
Console.ReadLine();
}
var endTime = DateTimeOffset.UtcNow;
_logger.LogInformation(2, "Stopping at '{StopTime}'", endTime);
_logger.LogInformation("Stopping");
_logger.LogInformation(Environment.NewLine);
_logger.LogInformation("{Result,-10}{StartTime,15}{EndTime,15}{Duration,15}", "RESULT", "START TIME", "END TIME", "DURATION(ms)");
_logger.LogInformation("{Result,-10}{StartTime,15}{EndTime,15}{Duration,15}", "------", "----- ----", "--- ----", "------------");
_logger.LogInformation("{Result,-10}{StartTime,15:mm:s tt}{EndTime,15:mm:s tt}{Duration,15}", "SUCCESS", startTime, endTime, (endTime - startTime).TotalMilliseconds);
}
public async Task <RestoreResult> ExecuteAsync(RestoreRequest request)
{
if (request.Project.TargetFrameworks.Count == 0)
{
_log.LogError("The project does not specify any target frameworks!");
return(new RestoreResult(success: false, restoreGraphs: Enumerable.Empty <RestoreTargetGraph>()));
}
var projectLockFilePath = string.IsNullOrEmpty(request.LockFilePath) ?
Path.Combine(request.Project.BaseDirectory, LockFileFormat.LockFileName) :
request.LockFilePath;
_log.LogInformation($"Restoring packages for '{request.Project.FilePath}'");
_log.LogWarning("TODO: Read and use lock file");
// Load repositories
var projectResolver = new PackageSpecResolver(request.Project.BaseDirectory);
var nugetRepository = Repository.Factory.GetCoreV3(request.PackagesDirectory);
var context = new RemoteWalkContext();
context.ProjectLibraryProviders.Add(
new LocalDependencyProvider(
new PackageSpecReferenceDependencyProvider(projectResolver)));
if (request.ExternalProjects != null)
{
context.ProjectLibraryProviders.Add(
new LocalDependencyProvider(
new ExternalProjectReferenceDependencyProvider(request.ExternalProjects)));
}
context.LocalLibraryProviders.Add(
new SourceRepositoryDependencyProvider(nugetRepository, _log));
foreach (var provider in request.Sources.Select(s => CreateProviderFromSource(s, request.NoCache)))
{
context.RemoteLibraryProviders.Add(provider);
}
var remoteWalker = new RemoteDependencyWalker(context);
var projectRange = new LibraryRange()
{
Name = request.Project.Name,
VersionRange = new VersionRange(request.Project.Version),
TypeConstraint = LibraryTypes.Project
};
// Resolve dependency graphs
var frameworks = request.Project.TargetFrameworks.Select(f => f.FrameworkName).ToList();
var graphs = new List <RestoreTargetGraph>();
foreach (var framework in frameworks)
{
graphs.Add(await WalkDependencies(projectRange, framework, remoteWalker, context));
}
if (graphs.Any(g => g.InConflict))
{
_log.LogError("Failed to resolve conflicts");
return(new RestoreResult(success: false, restoreGraphs: graphs));
}
// Install the runtime-agnostic packages
var allInstalledPackages = new HashSet <LibraryIdentity>();
var localRepository = new NuGetv3LocalRepository(request.PackagesDirectory, checkPackageIdCase: false);
await InstallPackages(graphs, request.PackagesDirectory, allInstalledPackages, request.MaxDegreeOfConcurrency);
// Resolve runtime dependencies
var runtimeGraphs = new List <RestoreTargetGraph>();
if (request.Project.RuntimeGraph.Runtimes.Count > 0)
{
foreach (var graph in graphs)
{
var runtimeSpecificGraphs = await WalkRuntimeDependencies(projectRange, graph, request.Project.RuntimeGraph, remoteWalker, context, localRepository);
runtimeGraphs.AddRange(runtimeSpecificGraphs);
}
graphs.AddRange(runtimeGraphs);
if (runtimeGraphs.Any(g => g.InConflict))
{
_log.LogError("Failed to resolve conflicts");
return(new RestoreResult(success: false, restoreGraphs: graphs));
}
// Install runtime-specific packages
await InstallPackages(runtimeGraphs, request.PackagesDirectory, allInstalledPackages, request.MaxDegreeOfConcurrency);
}
else
{
_log.LogVerbose("Skipping runtime dependency walk, no runtimes defined in project.json");
}
// Build the lock file
var repository = new NuGetv3LocalRepository(request.PackagesDirectory, checkPackageIdCase: false);
var lockFile = CreateLockFile(request.Project, graphs, repository);
var lockFileFormat = new LockFileFormat();
lockFileFormat.Write(projectLockFilePath, lockFile);
return(new RestoreResult(true, graphs, lockFile));
}
public static Assembly TryLoadHelp(this Assembly assembly, ZipPackage zipPackage, ILogger logger)
{
logger.LogInformation("Looking for xml help for {0}", assembly.Name);
var helpFile = zipPackage.GetFiles().FirstOrDefault(file => file.Path.Equals(assembly.Path.Replace("dll", "xml"), StringComparison.OrdinalIgnoreCase));
if (helpFile != null) {
logger.LogInformation("Found xml help for {0}", assembly.Name);
var xml = XDocument.Load(helpFile.GetStream());
foreach (var member in xml.Element("doc").Element("members").Elements("member")) {
var name = member.Attribute("name")?.Value;
if (name == null) {
continue;
}
try {
switch (name.First()) {
case 'T': {
assembly.FindType(name.Substring(2))?.LoadHelp(member);
break;
}
case 'M': {
var argStart = name.IndexOf('(');
if (argStart < 2) {
continue;
}
var methodName = name.Substring(2, argStart - 2);
var typeName = methodName.Substring(0, methodName.LastIndexOf('.'));
methodName = methodName.Substring(methodName.LastIndexOf('.') + 1);
assembly.FindType(typeName)?.Methods.FirstOrDefault(m => m.Name == methodName)?.LoadHelp(member);
break;
}
}
} catch (Exception ex) {
logger.LogError("Failed to pull out help details", ex);
}
}
}
return assembly;
}