private static async IAsyncEnumerable <Delta> Livecoding(BaselineArtifacts baselineArtifacts, string watchDir, string pattern, [EnumeratorCancellation] CancellationToken cancellationToken = default)
{
var last = DateTime.UtcNow;
var interval = TimeSpan.FromMilliseconds(250); /* FIXME: make this configurable */
var docResolver = baselineArtifacts.DocResolver;
var baselineProjectId = baselineArtifacts.BaselineProjectId;
using var fswgen = new Util.FSWGen(watchDir, pattern);
await foreach (var fsevent in fswgen.Watch(cancellationToken).ConfigureAwait(false))
{
if ((fsevent.ChangeType & WatcherChangeTypes.Changed) != 0)
{
var e = DateTime.UtcNow;
Console.WriteLine($"change in {fsevent.FullPath} is a {fsevent.ChangeType} at {e}");
if (e - last < interval)
{
Console.WriteLine($"too soon {e-last}");
continue;
}
Console.WriteLine($"more than 250ms since last change");
last = e;
var fp = fsevent.FullPath;
if (!docResolver.TryResolveDocumentId(fp, out var id))
{
Console.WriteLine($"ignoring change in {fp} which is not in {baselineProjectId}");
continue;
}
yield return(new Delta(Plan.Change.Create(id, fp)));
}
}
}
public DeltaProject(BaselineArtifacts artifacts)
{
_changeMakerService = artifacts.ChangeMakerService;
_solution = artifacts.BaselineSolution;
_baseProjectId = artifacts.BaselineProjectId;
_nextName = new DeltaNaming(artifacts.BaselineOutputAsmPath, 1);
}
public override IAsyncEnumerable <Delta> SetupDeltas(BaselineArtifacts baselineArtifacts, CancellationToken ct = default)
{
if (parsedScript == null)
{
return(Util.AsyncEnumerableExtras.Empty <Delta>());
}
return(ScriptedPlanInputs(parsedScript, baselineArtifacts, ct));
}
private static async IAsyncEnumerable <Delta> ScriptedPlanInputs(Script.ParsedScript parsedScript, BaselineArtifacts baselineArtifacts, [EnumeratorCancellation] CancellationToken ct = default)
{
await Task.CompletedTask; // to make compiler happy
var resolver = baselineArtifacts.DocResolver;
var artifacts = parsedScript.Changes.Select(c => new Delta(Plan.Change.Create(ResolveForScript(resolver, c.Document), c.Update)));
foreach (var a in artifacts)
{
yield return(a);
if (ct.IsCancellationRequested)
{
break;
}
}
}
public override IAsyncEnumerable <Delta> SetupDeltas(BaselineArtifacts baselineArtifacts, CancellationToken ct = default)
{
return(Livecoding(baselineArtifacts, config.LiveCodingWatchDir, config.LiveCodingWatchPattern, ct));
}
public abstract IAsyncEnumerable <Delta> SetupDeltas(BaselineArtifacts baselineArtifacts, CancellationToken ct = default);
