Merge pull request #101 from mizlan/lua-setup

Lua setup

Author: jarun

README.md

@@ -143,6 +143,18 @@ n³ will detect env variables defined in `vimrc`.
 let $NNN_TRASH=1
 ```
 
+#### Setup for `init.lua`
+
+Use the same option names as you would in Vimscript, e.g.:
+
+```lua
+require('nnn').setup{
+    set_default_mappings = false,
+    session = 'global',
+    layout = { left = '20%' }
+}
+```
+
 ### Credits
 
 Main n³ program: https://github.com/jarun/nnn

doc/nnn.txt

@@ -185,6 +185,18 @@ g:nnn#shell                                                      *g:nnn#shell*
                   Default: &shell
                   The shell to run the terminal window.
 
+require('nnn').setup{}                                          *nnn-lua-setup*
+                  Default: same as Vimscript defaults
+                  An alternative way to configure n³ more suitable for
+                  init.lua users. For example:
+>
+                  require('nnn').setup{
+                      set_default_mappings = false,
+                      session = 'global',
+                      layout = { left = '20%' }
+                  }
+<
+
 
 -----------------------------------------------------------------------------
 Functions                                                            *nnn-func*

lua/nnn.lua

@@ -0,0 +1,21 @@
+local M = {}
+
+M.valid_options = {
+    'session',
+    'set_default_mappings',
+    'layout',
+    'action',
+    'session',
+    'command',
+}
+
+function M.setup(config)
+    for k, v in pairs(config) do
+        if not vim.tbl_contains(M.valid_options, k) then
+            error("Invalid option to nnn setup(): " .. vim.inspect(k))
+        end
+        vim.g['nnn#' .. k] = v
+    end
+end
+
+return M