public async Task <IPackageSearchMetadata> GetPackageMetadataAsync(PackageIdentity identity, bool includePrerelease, CancellationToken cancellationToken)
{
var tasks = _sourceRepositories
.Select(r => r.GetPackageMetadataAsync(identity, includePrerelease, cancellationToken))
.ToList();
if (_localRepository != null)
{
tasks.Add(_localRepository.GetPackageMetadataFromLocalSourceAsync(identity, cancellationToken));
}
var ignored = tasks
.Select(task => task.ContinueWith(LogError, TaskContinuationOptions.OnlyOnFaulted))
.ToArray();
var completed = (await Task.WhenAll(tasks))
.Where(m => m != null);
var master = completed.FirstOrDefault(m => !string.IsNullOrEmpty(m.Summary))
?? completed.FirstOrDefault()
?? PackageSearchMetadataBuilder.FromIdentity(identity).Build();
return(master.WithVersions(
asyncValueFactory: () => MergeVersionsAsync(identity, completed)));
}
private async Task <IPackageSearchMetadata> GetPackageMetadataAsync(PackageIdentity identity, List <Task <IPackageSearchMetadata> > tasks, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (_localRepository != null)
{
tasks.Add(_localRepository.GetPackageMetadataFromLocalSourceAsync(identity, cancellationToken));
}
IEnumerable <IPackageSearchMetadata> completed = (await Task.WhenAll(tasks))
.Where(m => m != null);
IPackageSearchMetadata master = completed.FirstOrDefault(m => !string.IsNullOrEmpty(m.Summary))
?? completed.FirstOrDefault()
?? PackageSearchMetadataBuilder.FromIdentity(identity).Build();
return(master.WithVersions(
asyncValueFactory: () => MergeVersionsAsync(identity, completed)));
}
public async Task <IPackageSearchMetadata> GetLocalPackageMetadataAsync(PackageIdentity identity, bool includePrerelease, CancellationToken cancellationToken)
{
var result = await _localRepository.GetPackageMetadataFromLocalSourceAsync(identity, cancellationToken);
if (result == null)
{
result = await _globalLocalRepository?.GetPackageMetadataFromLocalSourceAsync(identity, cancellationToken);
if (result == null)
{
return(null);
}
}
return(result.WithVersions(asyncValueFactory: () => FetchAndMergeVersionsAsync(identity, includePrerelease, cancellationToken)));
}