private RuntimeEnvironmentInfo(string runtimeName,
string runtimeVersion,
string processArchitecture,
string osPlatform,
string osArchitecture,
string osDescription,
CoreAssembyInformation coreAssembyInfo)
{
this.RuntimeName = runtimeName;
this.RuntimeVersion = runtimeVersion;
this.ProcessArchitecture = processArchitecture;
this.OsPlatform = osPlatform;
this.OsArchitecture = osArchitecture;
this.OsDescription = osDescription;
this.CoreAssembyInfo = coreAssembyInfo;
}
private static string GetRuntimeName(CoreAssembyInformation coreAssembyInfo)
{
string runtimeName = null;
#if RUNTIMEINFORMATION_TYPE_AVAILABLE
// See https://docs.microsoft.com/en-us/dotnet/api/system.runtime.interopservices.runtimeinformation.frameworkdescription?view=net-5.0#remarks
string frameworkDescription = RuntimeInformation.FrameworkDescription;
if (frameworkDescription.StartsWith(".NET Native", StringComparison.OrdinalIgnoreCase))
{
runtimeName = ".NET Native";
}
else if (frameworkDescription.StartsWith(".NET Framework", StringComparison.OrdinalIgnoreCase))
{
runtimeName = ".NET Framework";
}
else if (frameworkDescription.StartsWith(".NET Core", StringComparison.OrdinalIgnoreCase))
{
runtimeName = ".NET Core";
}
else if (frameworkDescription.StartsWith(".NET 5", StringComparison.OrdinalIgnoreCase))
{
runtimeName = ".NET 5";
}
#endif
if (runtimeName == null)
{
if (coreAssembyInfo.IsMscorlib)
{
runtimeName = ".NET Framework";
}
else if (coreAssembyInfo.IsSysPrivCoreLib)
{
runtimeName = $"Unknown {coreAssembyInfo.Name}-based .NET-compatible runtime";
}
}
if (runtimeName == null)
{
runtimeName = $"Unknown .NET-compatible runtime (BCL: {coreAssembyInfo.Name})";
}
return(runtimeName);
}
private static RuntimeEnvironmentInfo CreateNew()
{
try
{
Assembly objectTypeAssembly = (new object()).GetType().Assembly;
string objectTypeAssemblyName = objectTypeAssembly.GetName()?.Name ?? UnknownMoniker;
var coreAssembyInfo = new CoreAssembyInformation(
isMscorlib: Mscorlib.Equals(objectTypeAssemblyName, StringComparison.OrdinalIgnoreCase),
isSysPrivCoreLib: CoreLib.Equals(objectTypeAssemblyName, StringComparison.OrdinalIgnoreCase),
name: objectTypeAssemblyName);
string runtimeName = GetRuntimeName(coreAssembyInfo);
string runtimeVersion = GetRuntimeVersion(coreAssembyInfo, objectTypeAssembly);
string processArchitecture = GetProcessArchitecture();
string osPlatform = GetOsPlatform();
string osArchitecture = GetOsArchitecture();
string osDescription = GetOsDescription();
return(new RuntimeEnvironmentInfo(
runtimeName,
runtimeVersion,
processArchitecture,
osPlatform,
osArchitecture,
osDescription,
coreAssembyInfo));
}
catch
{
return(new RuntimeEnvironmentInfo(
runtimeName: UnknownMoniker,
runtimeVersion: UnknownMoniker,
processArchitecture: UnknownMoniker,
osPlatform: UnknownMoniker,
osArchitecture: UnknownMoniker,
osDescription: UnknownMoniker,
coreAssembyInfo: new CoreAssembyInformation(isMscorlib: false, isSysPrivCoreLib: false, name: UnknownMoniker)));
}
}
private static string GetRuntimeVersion(CoreAssembyInformation coreAssembyInfo, Assembly objectTypeAssembly)
{
Version environmentVersion = Environment.Version;
if (coreAssembyInfo.IsSysPrivCoreLib && (environmentVersion.Major == 3 || environmentVersion.Major >= 5))
{
// On Net Core, Environment.Version returns "4.x" in .NET Core 2.x, but it is correct since .NET Core 3.0.0.
string runtimeVersion = environmentVersion.ToString();
return(runtimeVersion);
}
string assemblyInfoVer = objectTypeAssembly.GetCustomAttribute <AssemblyInformationalVersionAttribute>()?.InformationalVersion;
if (assemblyInfoVer != null)
{
// Strip the git hash if there is one:
int plusIndex = assemblyInfoVer.IndexOf('+');
if (plusIndex >= 0)
{
assemblyInfoVer = assemblyInfoVer.Substring(0, plusIndex);
}
// Servicing version if there is one:
int minusIndex = assemblyInfoVer.IndexOf('-');
if (minusIndex >= 0)
{
assemblyInfoVer = assemblyInfoVer.Substring(0, minusIndex);
}
string runtimeVersion = assemblyInfoVer.Trim();
if (runtimeVersion.Length > 0)
{
return(runtimeVersion);
}
}
return(UnknownMoniker);
}
