Change direnv example to upload $env.PATH as a list (#1058)

* change direnv example to upload $env.PATH as a list

* don't use intermediary variables

Co-authored-by: Darren Schroeder <[email protected]>

* make PATH upsert a little less cluttered

* remove unused changes and no_changes variables

---------

Co-authored-by: Darren Schroeder <[email protected]>

Author: Gryff

cookbook/direnv.md

@@ -18,8 +18,11 @@ $env.config = {
   hooks: {
     pre_prompt: [{ ||
       let direnv = (direnv export json | from json)
-      let direnv = if ($direnv | length) == 1 { $direnv } else { {} }
-      $direnv | load-env
+
+      if not ($direnv | is-empty) {
+        let direnv = $direnv | upsert PATH {|it| $it.PATH | split row ":" }
+        $direnv | load-env
+      }
     }]
   }
 }