How to stat a directory using IFileService?

[alexdima]

For #142078 , I am trying to replace pfs with IFileService.

Here I need to read the mtime of a directory. I could not find IFileService.stat so I am trying to use IFileService.resolve().

However, I have noticed that IFileService.resolve() returns all children for a directory, which in the case of the builtin extensions directory is about 100 children, and I am concerned that this might be costly. Is there a way to stat a directory without reading its children?

[bpasero]

There is now IFileService.stat that will not resolve children.

[gjsjohnmurray]

@bpasero is your change relevant / applicable to extensions, either ones that implement a FileSystemProvider or ones that use vscode.workspace.fs.stat() to learn about a folder?

[bpasero]

@gjsjohnmurray extensions have a more primitive form of API and can use vscode.fs.stat which is pretty much the same as the internal API I now added.

In March debt week I might see to adopt this new IFileService.stat method over IFileService.resolve given it is probably faster in most cases where the children are not required.

[alexdima]

Nice! Thank you @bpasero !