xrforge-v2/src/plugin/diskscan.lua

local dir = require "opendirectory"

-- this registers the plugin UI /funcs
return {
  name = "Content (from disk)",
  info = '',
  opts = {
    { 
      key='app.opts.plugin_diskscan_dir',
      title='Directory',
      info="Directory to scan for experiences (use '.' for current) ",
      default="./myverse", 
      values=''
    }
  },
  shouldHideFile = function(name)
    return  name == ".."    -- parent
        or name == "util"   -- repository 
        or name:match("^%.") -- hidden
        or name == "src"    -- repository
        or name == "result" -- repository
  end,

  scan = function(scandir,parent,seen)
    seen = seen or {}
    local me = app.plugin.diskscan
    -- scan dirs
    local dref, derr = dir.foreach( scandir, function(path,stat,state,name,kind,ino,off,attr,fullpath)

      local experience = {
        path = fullpath,
        name = name,
        title = name,
        tag  = {},
        file = {stat=stat,state=state,kind=kind,ino=ino,off=off,attr=attr,fullpath=fullpath,name=name,path=path}
      }

      -- found directory
      if not seen[ino] and (kind == unix.DT_DIR or kind == unix.DT_LNK) 
        and not me.shouldHideFile(name) then
        seen[ino] = true -- prevent recursion with symlinks
        print("✅ ".. fullpath)
        app.pub("scan_experience", nil, experience)
        table.insert( app.cache.items, experience)
        me.scan(fullpath, dir,seen)
      end
      
      ---- found file
      if not seen[ino] and (kind ~= unix.DT_DIR and kind ~= unix.DT_LNK) 
        and not me.shouldHideFile(name) then
        seen[ino] = true -- prevent recursion with symlinks
        print("ℹ️ ".. fullpath)
        app.pub("scan_experience_file", nil, experience)
        local size = attr:size()
      end

    end)
    if not derr then dref:close() end

    foreach( app.cache.items, function(k,v)
      -- remove file attributes (which are closed already)
      v.file.stat = nil
      v.file.attr = nil
      v.file.state = nil
    end)
  end
}