/// <summary>
/// Creates an implicit ProjectImportElement as if it was in the project.
/// </summary>
/// <returns></returns>
internal static ProjectImportElement CreateImplicit(string project, ProjectRootElement containingProject, ImplicitImportLocation implicitImportLocation, SdkReference sdkReference)
{
XmlElementWithLocation element = containingProject.CreateElement(XMakeElements.import);
return(new ProjectImportElement(element, containingProject)
{
Project = project,
Sdk = sdkReference.ToString(),
ImplicitImportLocation = implicitImportLocation,
ParsedSdkReference = sdkReference
});
}
/// <inheritdoc cref="ISdkResolverService.ResolveSdk"/>
public virtual SdkResult ResolveSdk(int submissionId, SdkReference sdk, LoggingContext loggingContext, ElementLocation sdkReferenceLocation, string solutionPath, string projectPath, bool interactive, bool isRunningInVisualStudio)
{
// Lazy initialize the SDK resolvers
if (_resolvers == null)
{
Initialize(loggingContext, sdkReferenceLocation);
}
List <SdkResult> results = new List <SdkResult>();
// Loop through resolvers which have already been sorted by priority, returning the first result that was successful
SdkLogger buildEngineLogger = new SdkLogger(loggingContext);
loggingContext.LogComment(MessageImportance.Low, "SdkResolving", sdk.ToString());
foreach (SdkResolver sdkResolver in _resolvers)
{
SdkResolverContext context = new SdkResolverContext(buildEngineLogger, projectPath, solutionPath, ProjectCollection.Version, interactive, isRunningInVisualStudio)
{
State = GetResolverState(submissionId, sdkResolver)
};
SdkResultFactory resultFactory = new SdkResultFactory(sdk);
SdkResult result;
try
{
result = (SdkResult)sdkResolver.Resolve(sdk, context, resultFactory);
}
catch (Exception e) when(e is FileNotFoundException || (e is FileLoadException && sdkResolver.GetType().GetTypeInfo().Name.Equals("NuGetSdkResolver", StringComparison.Ordinal)))
{
// Since we explicitly add the NuGetSdkResolver, we special case this. The NuGetSdkResolver has special logic
// to load NuGet assemblies at runtime which could fail if the user is not running installed MSBuild. Rather
// than give them a generic error, we want to give a more specific message. This exception cannot be caught by
// the resolver itself because it is usually thrown before the class is loaded
// MSB4243: The NuGet-based SDK resolver failed to run because NuGet assemblies could not be located. Check your installation of MSBuild or set the environment variable "{0}" to the folder that contains the required NuGet assemblies. {1}
loggingContext.LogWarning(null, new BuildEventFileInfo(sdkReferenceLocation), "CouldNotRunNuGetSdkResolver", MSBuildConstants.NuGetAssemblyPathEnvironmentVariableName, e.Message);
continue;
}
catch (Exception e)
{
// MSB4242: The SDK resolver "{0}" failed to run. {1}
loggingContext.LogWarning(null, new BuildEventFileInfo(sdkReferenceLocation), "CouldNotRunSdkResolver", sdkResolver.Name, e.Message);
continue;
}
SetResolverState(submissionId, sdkResolver, context.State);
if (result == null)
{
continue;
}
if (result.Success)
{
LogWarnings(loggingContext, sdkReferenceLocation, result);
if (!IsReferenceSameVersion(sdk, result.Version))
{
// MSB4241: The SDK reference "{0}" version "{1}" was resolved to version "{2}" instead. You could be using a different version than expected if you do not update the referenced version to match.
loggingContext.LogWarning(null, new BuildEventFileInfo(sdkReferenceLocation), "SdkResultVersionDifferentThanReference", sdk.Name, sdk.Version, result.Version);
}
// Associate the element location of the resolved SDK reference
result.ElementLocation = sdkReferenceLocation;
return(result);
}
results.Add(result);
}
foreach (SdkResult result in results)
{
LogWarnings(loggingContext, sdkReferenceLocation, result);
if (result.Errors != null)
{
foreach (string error in result.Errors)
{
loggingContext.LogErrorFromText(subcategoryResourceName: null, errorCode: null, helpKeyword: null, file: new BuildEventFileInfo(sdkReferenceLocation), message: error);
}
}
}
return(new SdkResult(sdk, null, null));
}