public async Task WaitAsync()
{
if (NodeLock == null)
{
await DotnetLock.WaitAsync();
_dotNetLockTaken = true;
return;
}
try
{
// We want to take the NPM lock first as is going to be the busiest one, and we want other threads to be
// able to run dotnet new while we are waiting for another thread to finish running NPM.
await NodeLock.WaitAsync();
_nodeLockTaken = true;
await DotnetLock.WaitAsync();
_dotNetLockTaken = true;
}
catch
{
if (_nodeLockTaken)
{
NodeLock.Release();
_nodeLockTaken = false;
}
throw;
}
}
private async Task <ProcessEx> RestoreAsync(ITestOutputHelper output, string workingDirectory)
{
// It's not safe to run multiple NPM installs in parallel
// https://github.com/npm/npm/issues/2500
await NodeLock.WaitAsync();
try
{
output.WriteLine($"Restoring NPM packages in '{workingDirectory}' using npm...");
var result = ProcessEx.RunViaShell(output, workingDirectory, "npm install");
return(result);
}
finally
{
NodeLock.Release();
}
}