private async Task PersistCompilationResult(FunctionMetadata metadata, string emitResult, ImmutableArray <Diagnostic> immutableArray)
{
var state = (emitResult != null && !immutableArray.Any(d => d.Severity == DiagnosticSeverity.Error))
? JavaScriptCompilation.CompilationState.Succeeded
: JavaScriptCompilation.CompilationState.Failed;
var compilationResult = new JavaScriptCompilation()
{
State = state,
EmitResult = emitResult,
Diagnostics = new List <Diagnostic>(immutableArray)
};
string sentinelFilePath = GetSentinelFilePath(metadata.Name);
FileUtility.EnsureDirectoryExists(Path.GetDirectoryName(sentinelFilePath));
await FileUtility.WriteAsync(sentinelFilePath, JsonConvert.SerializeObject(compilationResult));
}
private async Task <IJavaScriptCompilation> GetCompilationResultAsync(FunctionMetadata functionMetadata)
{
DateTime compilationStarted = DateTime.UtcNow;
string sentinelFilePath = GetSentinelFilePath(functionMetadata.Name);
int iterationInterval = 500;
int maxDuration = 30000;
int iterationCount = maxDuration / iterationInterval;
for (int i = 0; i < iterationCount; i++)
{
if (File.Exists(sentinelFilePath) && File.GetLastWriteTimeUtc(sentinelFilePath) > compilationStarted)
{
string json = await FileUtility.ReadAsync(sentinelFilePath);
try
{
JavaScriptCompilation result = JsonConvert.DeserializeObject <JavaScriptCompilation>(json);
if (result.State == JavaScriptCompilation.CompilationState.Failed)
{
throw new CompilationErrorException("Compilation failed", result.Diagnostics.ToImmutableArray());
}
else if (result.State == JavaScriptCompilation.CompilationState.Succeeded)
{
return(result);
}
}
catch (JsonSerializationException)
{
// Continue and wait on timeout
}
}
await Task.Delay(500);
}
throw new CompilationErrorException("Compilation timed out.", ImmutableArray <Diagnostic> .Empty);
}
