public async Task <Tuple <Parts, TreeResponse> > TreeFrom(Parts source, bool throwsIfNotFound)
{
Debug.Assert(source.Type == TreeEntryTargetType.Tree);
if (treeCachePerPath.TryGetValue(source.Url, out var treeResponse))
{
return(treeResponse);
}
string sha;
if (source.Path == null)
{
var commit = await RootCommitFrom(source);
sha = commit.Tree.Sha;
}
else
{
var parentTreePart = source.ParentTreePart;
var parentTreeResponse = await TreeFrom(parentTreePart, throwsIfNotFound);
if (parentTreeResponse == null)
{
return(null);
}
var name = source.Path.Split('/').Last();
var treeItem = parentTreeResponse.Item2.Tree.FirstOrDefault(ti => ti.Type == TreeType.Tree && ti.Path == name);
if (treeItem == null)
{
if (throwsIfNotFound)
{
throw new Exception($"[{source.Type}: {source.Url}] doesn't exist.");
}
return(null);
}
sha = treeItem.Sha;
}
log(string.Format("API Query - Retrieve tree '{0}' ({3}) details from '{1}/{2}'.",
sha.Substring(0, 7), source.Owner, source.Repository, source.Url));
var tree = await client.Git.Tree.Get(source.Owner, source.Repository, sha);
var parts = new Parts(source.Owner, source.Repository, TreeEntryTargetType.Tree, source.Branch, source.Path, tree.Sha);
var treeFrom = AddToPathCache(parts, tree);
AddToKnown <TreeResponse>(parts.Sha, parts.Owner, parts.Repository);
foreach (var i in tree.Tree)
{
switch (i.Type.Value)
{
case TreeType.Blob:
var p = parts.Combine(TreeEntryTargetType.Blob, i.Path, i.Sha);
AddToPathCache(p, i);
AddToKnown <Blob>(i.Sha, source.Owner, source.Repository);
break;
case TreeType.Tree:
AddToKnown <TreeResponse>(i.Sha, parts.Owner, parts.Repository);
break;
default:
throw new NotSupportedException();
}
}
return(treeFrom);
}