private static List <AssemblyFolderItem> GatherVersionStrings(string targetRuntimeVersion, AssemblyFolderCollection collection)
{
return
((from folder in collection.AssemblyFolders
let targetVersion = VersionUtilities.ConvertToVersion(targetRuntimeVersion)
let replacementVersion = GetFrameworkVersion(folder.FrameworkVersion)
where targetVersion != null && targetVersion >= replacementVersion
orderby folder.FrameworkVersion descending
select folder).ToList());
}
/// <summary>
/// Enumerate the gac and generate a list of assemblies which match the strongname by runtime.
/// </summary>
private static SortedDictionary <Version, SortedDictionary <AssemblyNameExtension, string> > GenerateListOfAssembliesByRuntime(string strongName, GetAssemblyRuntimeVersion getRuntimeVersion, Version targetedRuntime, FileExists fileExists, GetPathFromFusionName getPathFromFusionName, GetGacEnumerator getGacEnumerator, bool specificVersion)
{
ErrorUtilities.VerifyThrowArgumentNull(targetedRuntime, nameof(targetedRuntime));
IEnumerable <AssemblyNameExtension> gacEnum = getGacEnumerator(strongName);
// Dictionary of Runtime version (sorted in reverse order) to a list of assemblies which are part of that runtime. This will allow us to pick the highest runtime and version first.
SortedDictionary <Version, SortedDictionary <AssemblyNameExtension, string> > assembliesWithValidRuntimes = new SortedDictionary <Version, SortedDictionary <AssemblyNameExtension, string> >(ReverseVersionGenericComparer.Comparer);
// Enumerate the gac values returned based on the partial or full fusion name.
if (gacEnum != null)
{
foreach (AssemblyNameExtension gacAssembly in gacEnum)
{
// We only have a fusion name from the IAssemblyName interface we need to get the path to the assembly to resolve it and to check its runtime.
string assemblyPath = getPathFromFusionName(gacAssembly.FullName);
// Make sure we could get the path from the Fusion name and make sure the file actually exists.
if (!String.IsNullOrEmpty(assemblyPath) && fileExists(assemblyPath))
{
// Get the runtime version from the found assembly.
string runtimeVersionRaw = getRuntimeVersion(assemblyPath);
// Convert the runtime string to a version so we can properly compare them as per version object comparison rules.
// We will accept version which are less than or equal to the targeted runtime.
Version runtimeVersion = VersionUtilities.ConvertToVersion(runtimeVersionRaw);
// Make sure the targeted runtime is greater than or equal to the runtime version of the assembly we got from the gac.
if (runtimeVersion != null)
{
if (targetedRuntime.CompareTo(runtimeVersion) >= 0 || specificVersion)
{
SortedDictionary <AssemblyNameExtension, string> assembliesWithRuntime = null;
assembliesWithValidRuntimes.TryGetValue(runtimeVersion, out assembliesWithRuntime);
// Create a new list if one does not exist.
if (assembliesWithRuntime == null)
{
assembliesWithRuntime = new SortedDictionary <AssemblyNameExtension, string>(AssemblyNameReverseVersionComparer.GenericComparer);
assembliesWithValidRuntimes.Add(runtimeVersion, assembliesWithRuntime);
}
if (!assembliesWithRuntime.ContainsKey(gacAssembly))
{
// Add the assembly to the list
assembliesWithRuntime.Add(gacAssembly, assemblyPath);
}
}
}
}
}
}
return(assembliesWithValidRuntimes);
}
private static Version GetFrameworkVersion(string version)
{
var candidateVersion = VersionUtilities.ConvertToVersion(version);
return(new Version(candidateVersion.Major, candidateVersion.Minor));
}