private static void AddProbingPaths(AssemblyLoadContextBuilder builder, RuntimeOptions options, string tfm)
{
if (options.AdditionalProbingPaths == null)
{
return;
}
foreach (var item in options.AdditionalProbingPaths)
{
var path = item;
if (path.Contains("|arch|"))
{
path = path.Replace("|arch|", RuntimeInformation.OSArchitecture.ToString().ToLowerInvariant());
}
if (path.Contains("|tfm|"))
{
if (tfm == null)
{
// We don't have enough information to parse this
continue;
}
path = path.Replace("|tfm|", tfm);
}
builder.AddProbingPath(path);
}
}
/// <summary>
/// Adds additional probing paths to a managed load context using settings found in the runtimeconfig.json
/// and runtimeconfig.dev.json files.
/// </summary>
/// <param name="builder">The context builder</param>
/// <param name="runtimeConfigPath">The path to the runtimeconfig.json file</param>
/// <param name="includeDevConfig">Also read runtimeconfig.dev.json file, if present.</param>
/// <param name="error">The error, if one occurs while parsing runtimeconfig.json</param>
/// <returns>The builder.</returns>
public static AssemblyLoadContextBuilder TryAddAdditionalProbingPathFromRuntimeConfig(
this AssemblyLoadContextBuilder builder,
string runtimeConfigPath,
bool includeDevConfig,
out Exception?error)
{
error = null;
try
{
var config = TryReadConfig(runtimeConfigPath);
if (config == null)
{
return(builder);
}
RuntimeConfig?devConfig = null;
if (includeDevConfig)
{
var configDevPath = runtimeConfigPath.Substring(0, runtimeConfigPath.Length - JsonExt.Length) + ".dev.json";
devConfig = TryReadConfig(configDevPath);
}
var tfm = config.runtimeOptions?.Tfm ?? devConfig?.runtimeOptions?.Tfm;
if (config.runtimeOptions != null)
{
AddProbingPaths(builder, config.runtimeOptions, tfm);
}
if (devConfig?.runtimeOptions != null)
{
AddProbingPaths(builder, devConfig.runtimeOptions, tfm);
}
if (tfm != null)
{
var dotnet = Process.GetCurrentProcess().MainModule.FileName;
if (string.Equals(Path.GetFileNameWithoutExtension(dotnet), "dotnet", StringComparison.OrdinalIgnoreCase))
{
var dotnetHome = Path.GetDirectoryName(dotnet);
if (dotnetHome != null)
{
builder.AddProbingPath(Path.Combine(dotnetHome, "store", RuntimeInformation.OSArchitecture.ToString().ToLowerInvariant(), tfm));
}
}
}
}
catch (Exception ex)
{
error = ex;
}
return(builder);
}