Ada: implement labels

[onnozweers]

The API supports labels for files. It would be nice, and probably easy, to implement this in Ada.

In the /namespace API call:

If action is ‘set-label’ then a label is added to the given file object. ’label’ item value is a String.
If action is ‘rm-label’ then the corresponding label of a file is removed. The ‘label’ value is either a string.

Labels can be used to provide custom file listings, with the /labels call:

/labels/{path} - Find metadata and optionally virtual directory contents.

[onnozweers]

Setting and removing labels works. But the /labels call doesn't work. At least, I can't get it to list anything more than:

{
  "children": [],
  "labels": []
}