plugins: normalise null plugin-defaults

Replaced all instances of `"null"` with `null`, when passing
plugin-defaults to `defaultNullOpts` functions.

plugins/utils/auto-session.nix

@@ -58,13 +58,13 @@ in
     };
 
     autoSave = {
-      enabled = helpers.defaultNullOpts.mkNullable types.bool "null" ''
+      enabled = helpers.defaultNullOpts.mkNullable types.bool null ''
         Whether to enable auto saving session.
       '';
     };
 
     autoRestore = {
-      enabled = helpers.defaultNullOpts.mkNullable types.bool "null" ''
+      enabled = helpers.defaultNullOpts.mkNullable types.bool null ''
         Whether to enable auto restoring session.
       '';
     };

plugins/utils/dressing.nix

@@ -68,7 +68,7 @@ helpers.neovim-plugin.mkNeovimPlugin config {
           Can be an integer or a float between 0 and 1 (e.g. 0.4 for 40%).
         '';
 
-        width = helpers.defaultNullOpts.mkNullable intOrRatio "null" ''
+        width = helpers.defaultNullOpts.mkNullable intOrRatio null ''
           Can be an integer or a float between 0 and 1 (e.g. 0.4 for 40%).
         '';
 
@@ -130,7 +130,7 @@ helpers.neovim-plugin.mkNeovimPlugin config {
           Used to customize the layout.
         '';
 
-        get_config = helpers.defaultNullOpts.mkLuaFn "null" ''
+        get_config = helpers.defaultNullOpts.mkLuaFn null ''
           This can be a function that accepts the opts parameter that is passed in to 'vim.select'
           or 'vim.input'. It must return either nil or config values to use in place of the global
           config values for that module.
@@ -153,8 +153,7 @@ helpers.neovim-plugin.mkNeovimPlugin config {
         '';
 
         telescope =
-          helpers.defaultNullOpts.mkNullable (with helpers.nixvimTypes; either strLua (attrsOf anything))
-            "null"
+          helpers.defaultNullOpts.mkNullable (with helpers.nixvimTypes; either strLua (attrsOf anything)) null
             ''
               Options for telescope selector.
 
@@ -230,7 +229,7 @@ helpers.neovim-plugin.mkNeovimPlugin config {
             }
           '' "An attribute set of window options.";
 
-          width = helpers.defaultNullOpts.mkNullable intOrRatio "null" ''
+          width = helpers.defaultNullOpts.mkNullable intOrRatio null ''
             Can be an integer or a float between 0 and 1 (e.g. 0.4 for 40%).
           '';
 
@@ -252,7 +251,7 @@ helpers.neovim-plugin.mkNeovimPlugin config {
                 of total."
               '';
 
-          height = helpers.defaultNullOpts.mkNullable intOrRatio "null" ''
+          height = helpers.defaultNullOpts.mkNullable intOrRatio null ''
             Can be an integer or a float between 0 and 1 (e.g. 0.4 for 40%).
           '';
 
@@ -313,7 +312,7 @@ helpers.neovim-plugin.mkNeovimPlugin config {
           ```
         '';
 
-        get_config = helpers.defaultNullOpts.mkLuaFn "null" ''
+        get_config = helpers.defaultNullOpts.mkLuaFn null ''
           This can be a function that accepts the opts parameter that is passed in to 'vim.select'
           or 'vim.input'. It must return either nil or config values to use in place of the global
           config values for that module.

plugins/utils/hydra/hydra-config-opts.nix

@@ -22,7 +22,7 @@ with lib;
         "warn"
         "run"
       ]
-      "null"
+      null
       ''
         Decides what to do when a key which doesn't belong to any head is pressed
         - `null`: hydra exits and foreign key behaves normally, as if the hydra wasn't active
@@ -37,14 +37,14 @@ with lib;
 
   buffer = helpers.defaultNullOpts.mkNullable (
     with types; either (enum [ true ]) ints.unsigned
-  ) "null" "Define a hydra for the given buffer, pass `true` for current buf.";
+  ) null "Define a hydra for the given buffer, pass `true` for current buf.";
 
   invoke_on_body = helpers.defaultNullOpts.mkBool false ''
     When true, summon the hydra after pressing only the `body` keys.
     Normally a head is required.
   '';
 
-  desc = helpers.defaultNullOpts.mkStr "null" ''
+  desc = helpers.defaultNullOpts.mkStr null ''
     Description used for the body keymap when `invoke_on_body` is true.
     When nil, "[Hydra] .. name" is used.
   '';

plugins/utils/neocord.nix

@@ -51,7 +51,7 @@ helpers.neovim-plugin.mkNeovimPlugin config {
           "warn"
           "error"
         ]
-        "null"
+        null
         ''
           Log messages at or above this level.
         '';

plugins/utils/nvim-ufo.nix

@@ -20,7 +20,7 @@ in
       while opening the folded line, `0` value will disable the highlight
     '';
 
-    providerSelector = helpers.defaultNullOpts.mkLuaFn "null" ''
+    providerSelector = helpers.defaultNullOpts.mkLuaFn null ''
       A lua function as a selector for fold providers.
     '';
 
@@ -31,7 +31,7 @@ in
       run `UfoInspect` for details if your provider has extended the kinds.
     '';
 
-    foldVirtTextHandler = helpers.defaultNullOpts.mkLuaFn "null" "A lua function to customize fold virtual text";
+    foldVirtTextHandler = helpers.defaultNullOpts.mkLuaFn null "A lua function to customize fold virtual text";
 
     enableGetFoldVirtText = helpers.defaultNullOpts.mkBool false ''
       Enable a function with `lnum` as a parameter to capture the virtual text

plugins/utils/presence-nvim.nix

@@ -49,7 +49,7 @@ in
             "warn"
             "error"
           ]
-          "null"
+          null
           ''
             Log messages at or above this level.
           '';