Get path to plugin directory

Lua
1

I am looking for the idiomatic lua method to get a plugin’s install path, for example:

~/.config/nvim/<...>/myplugin/
  - lua
    - myplugin
       - myplugin.lua
  - plugin

From myplugin.lua what is the best way to get the path ~/.config/nvim/<...>/myplugin/?

In vimscript I could do something like expand("<sfile>:p:h") but <sfile> doesn’t seem to resolve to anything from lua.

2

You can get the full path of the myplugin.lua with

debug.getinfo(1).source:sub(2)
3

In a Neovim buffer opened on a file on my system:

    :lua local d = debug.getinfo(1).source:sub(2)
    :=d

- reports back “nil” - what’m I getting wrong here?

I’m resorting to these commands

    :vim.cmd('cd %:p:h')
    :vim.cmd('pwd')

In my vimfiles/nvim/lua/lazy/telescope.lua.

4

<sfile> doesn’t work from vim.fn.expand()?