public bool IsDependencyInstalled(CodeGenerationContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
bool isODataRestierAssemblyReferenced = ProjectReferences.IsAssemblyReferenced(context.ActiveProject, AssemblyVersions.ODataRestierAssemblyName);
context.Items[ContextKeys.IsODataRestierAssemblyReferencedKey] = isODataRestierAssemblyReferenced;
bool isEntityFrameworkAssemblyReferenced = ProjectReferences.IsAssemblyReferenced(context.ActiveProject, AssemblyVersions.EntityFrameworkAssemblyName);
context.Items[ContextKeys.IsEntityFrameworkAssemblyReferencedKey] = isEntityFrameworkAssemblyReferenced;
return(isODataRestierAssemblyReferenced && isEntityFrameworkAssemblyReferenced);
}
// The parameter 'latestKnownAssemblyVersion' can be null and if yes will be
// infered from 'assemblyReferenceName' parameter.
// I added that as a parameter to make unit testing easier.
internal static void GetPackageFileNameForPackage(CodeGenerationContext context,
IEnumerable <IVsPackageMetadata> installedPackages,
string packageId,
string assemblyReferenceName,
Version minSupportedAssemblyReferenceVersion,
ref string packageFileName)
{
if (ProjectReferences.IsAssemblyReferenced(context.ActiveProject, assemblyReferenceName))
{
// If the project has reference to MVC version 5.0 or
// above the corresponding package versions file is loaded from the file system.
IVsPackageMetadata installedPackage = installedPackages.
Where(package => String.Equals(packageId, package.Id, StringComparison.OrdinalIgnoreCase)).FirstOrDefault();
Version versionForPackageFile;
// First try to get the package version and if not fallback to assembly reference version.
if (installedPackage == null || !SemanticVersionParser.TryParse(installedPackage.VersionString, out versionForPackageFile))
{
// Note: In this scenario where user does not have a package
// reference but only has assembly reference, we will end up
// using 5.1.0 instead of 5.1.1 version of package file (even
// if the assembly reference is the same as the one shipped in 5.1.1)
// because the assembly version did not change for 5.1.1
versionForPackageFile = ProjectReferences.GetAssemblyVersion(context.ActiveProject, assemblyReferenceName);
}
// Version should have been either available from package or atleast the assembly reference.
Contract.Assert(versionForPackageFile != null);
// For example : If 5.1 is the latest tooling version and if we release just the NuGet packages for a higher version of runtime (may be 5.2),
// we will still continue to scaffold the latest tooling version (in this case 5.1).
if (versionForPackageFile >= minSupportedAssemblyReferenceVersion && versionForPackageFile <= _latestKnownPackageVersion)
{
packageFileName = GetPackageVersionsFileName(versionForPackageFile);
}
}
}