/// <summary>
/// Creates a virtual environment using virtualenv. If virtualenv or pip
/// are not installed then they are downloaded and installed automatically.
/// </summary>
public static async Task CreateWithVirtualEnv(
IServiceProvider provider,
IPythonInterpreterFactory factory,
string path
)
{
if (provider == null)
{
throw new ArgumentNullException(nameof(provider));
}
if (factory == null)
{
throw new ArgumentNullException(nameof(factory));
}
if (string.IsNullOrEmpty(path))
{
throw new ArgumentNullException(nameof(path));
}
factory.ThrowIfNotRunnable(nameof(factory));
var cancel = CancellationToken.None;
var ui = new VsPackageManagerUI(provider);
var interpreterOpts = provider.GetComponentModel().GetService <IInterpreterOptionsService>();
var pm = interpreterOpts?.GetPackageManagers(factory).FirstOrDefault(p => p.UniqueKey == "pip");
if (pm == null)
{
throw new InvalidOperationException(Strings.PackageManagementNotSupported);
}
if (!pm.IsReady)
{
await pm.PrepareAsync(ui, cancel);
if (!pm.IsReady)
{
throw new InvalidOperationException(Strings.VirtualEnvCreationFailed.FormatUI(path));
}
}
bool hasVirtualEnv = (await factory.HasModuleAsync("venv", interpreterOpts)) ||
(await factory.HasModuleAsync("virtualenv", interpreterOpts));
if (!hasVirtualEnv)
{
if (!await Install(provider, factory))
{
throw new InvalidOperationException(Strings.VirtualEnvCreationFailed.FormatUI(path));
}
}
await ContinueCreate(provider, factory, path, false, PackageManagerUIRedirector.Get(pm, ui));
}