feat(nushell)!: improve nushell support for nushell v0.96+

Author: brglng

README.md

@@ -122,12 +122,10 @@ z -b foo bar # replace foo with bar in cwd and cd there
 
   Put something like this in your `env.nu`:
 
-      lua /path/to/z.lua --init nushell | save -f ~/.cache/zlua.nu
+      mkdir ($nu.data-dir | path join "vendor/autoload")
+      lua /path/to/z.lua --init nushell | save -f ($nu.data-dir | path join "vendor/autoload/zlua.nu")
 
-  Then put something like this in your `config.nu`:
-
-      source ~/.cache/zlua.nu
-      alias z = _zlua
+  Note: Only Nushell v0.96+ is supported
 
 - Power Shell:
 

z.lua

@@ -2814,7 +2814,7 @@ end
 -- nushell
 -----------------------------------------------------------------------
 local script_zlua_nushell = [[
-def _zlua --env --wrapped [...args: string] {
+export def _zlua --env --wrapped [...args: string] {
     if ($args | length) != 0 and $args.0 == "--add" {
         with-env { _ZL_RANDOM: (random int) } { ^$env.ZLUA_LUAEXE $env.ZLUA_SCRIPT --add ...($args | skip 1) }
     } else if ($args | length) != 0 and $args.0 == "--complete" {
@@ -2899,6 +2899,9 @@ if completer in $env.config.completions.external {
         }
     })
 }
+
+export alias z = _zlua
+
 ]]
 
 -----------------------------------------------------------------------