public async Task <IEnumerable <Cid> > AddAsync(string path,
bool recursive = true,
CancellationToken cancel = default)
{
var r = await _nameApi.ResolveAsync(path, cancel : cancel).ConfigureAwait(false);
var id = Cid.Decode(r.Remove(0, 6));
var todos = new Stack <Cid>();
todos.Push(id);
var dones = new List <Cid>();
// The pin is added before the content is fetched, so that
// garbage collection will not delete the newly pinned
// content.
while (todos.Count > 0)
{
var current = todos.Pop();
// Add CID to PIN database.
await Store.PutAsync(current, new Pin
{
Id = current
}, cancel).ConfigureAwait(false);
// Make sure that the content is stored locally.
await BlockApi.GetAsync(current, cancel).ConfigureAwait(false);
// Recursively pin the links?
if (recursive && current.ContentType == "dag-pb")
{
var links = await _objectApi.LinksAsync(current, cancel);
foreach (var link in links)
{
todos.Push(link.Id);
}
}
dones.Add(current);
}
return(dones);
}
public async Task <IEnumerable <Cid> > RemoveAsync(Cid id,
bool recursive = true,
CancellationToken cancel = default)
{
var todos = new Stack <Cid>();
todos.Push(id);
var dones = new List <Cid>();
while (todos.Count > 0)
{
var current = todos.Pop();
await Store.RemoveAsync(current, cancel).ConfigureAwait(false);
if (recursive)
{
if (null != await BlockApi.StatAsync(current, cancel).ConfigureAwait(false))
{
try
{
var links = await _objectApi.LinksAsync(current, cancel).ConfigureAwait(false);
foreach (var link in links)
{
todos.Push(link.Id);
}
}
catch (Exception)
{
// ignored
}
}
}
dones.Add(current);
}
return(dones);
}