wrapper/rc: add vim.options

Translates an attribute set of values into `vim.o` values in a key-value format.

modules/wrapper/rc/config.nix

@@ -85,6 +85,10 @@ in {
       mapAttrsToList (name: value: "vim.g.${name} = ${toLuaObject value}")
       (filterNonNull cfg.globals);
 
+    optionsScript =
+      mapAttrsToList (name: value: "vim.o.${name} = ${toLuaObject value}")
+      (filterNonNull cfg.options);
+
     extraPluginConfigs = resolveDag {
       name = "extra plugin configs";
       dag = mapAttrs (_: value: entryAfter value.after value.setup) cfg.extraPlugins;
@@ -132,9 +136,12 @@ in {
   in {
     vim = {
       luaConfigRC = {
+        # `vim.g` and `vim.o`
         globalsScript = entryAnywhere (concatLines globalsScript);
-        # basic
-        pluginConfigs = entryAfter ["basic"] pluginConfigs;
+        optionsScript = entryAfter ["basic"] (concatLines optionsScript);
+
+        # Basic
+        pluginConfigs = entryAfter ["optionsScript"] pluginConfigs;
         extraPluginConfigs = entryAfter ["pluginConfigs"] extraPluginConfigs;
         mappings = entryAfter ["extraPluginConfigs"] mappings;
       };

modules/wrapper/rc/options.nix

@@ -135,10 +135,30 @@ in {
         populated, this option will set vim variables in the
         built luaConfigRC as the first item.
 
-        E.g. {foo = "bar"} will set `vim.g.foo` to "bar" where
-        the type of `bar` in the resulting vimscript will be
+        ::: {.note}
+        `{foo = "bar";}` will set `vim.g.foo` to "bar" where
+        the type of `bar` in the resulting Lua value will be
+        infered from the type of the value in the `{name = value;}`
+        pair.
+        :::
+      '';
+    };
+
+    options = mkOption {
+      type = attrs;
+      default = {};
+      description = ''
+        An attribute set containing vim options to be set
+        as early as possible. If populated, this option will
+        set vim options in the built luaConfigRC after `basic`
+        and before `pluginConfigs` DAG entries.
+
+        ::: {.note}
+        `{foo = "bar"}` will set `vim.o.foo` to "bar" where
+        the type of `bar` in the resulting Lua value will be
         infered from the type of the value in the `{name = value}`
         pair.
+        :::
       '';
     };