completion/blink-cmp: option to enable friendly-snippets

Just adds it to the environment,
`blink-cmp` will pick up on it automatically.

docs/release-notes/rl-0.8.md

@@ -207,6 +207,9 @@
 - Add [direnv.vim](https://github.com/direnv/direnv.vim) plugin
   for automatic syncing of nvim shell environment with direnv's.
 - Add [blink.cmp] source options and some default-disabled sources.
+- Add [blink.cmp] option to add
+  [friendly-snippets](https://github.com/rafamadriz/friendly-snippets)
+  so blink.cmp can source snippets from it.
 
 [TheColorman](https://github.com/TheColorman)
 

modules/plugins/completion/blink-cmp/blink-cmp.nix

@@ -177,5 +177,7 @@ in {
           Attribute names must be source names used in {option}`vim.autocomplete.blink-cmp.setupOpts.sources.default`.
         '';
       };
+
+    friendly-snippets.enable = mkEnableOption "friendly-snippets for blink to source from automatically";
   };
 }

modules/plugins/completion/blink-cmp/config.nix

@@ -7,7 +7,7 @@
   inherit (lib.strings) optionalString;
   inherit (lib.generators) mkLuaInline;
   inherit (lib.attrsets) attrValues filterAttrs;
-  inherit (lib.lists) map;
+  inherit (lib.lists) map optional;
   inherit (lib.nvim.lua) toLuaObject;
   inherit (builtins) concatStringsSep typeOf tryEval attrNames mapAttrs;
 
@@ -26,7 +26,7 @@
   blinkSourcePlugins = map (definition: definition.package) (attrValues enabledBlinkSources);
 in {
   vim = mkIf cfg.enable {
-    startPlugins = ["blink-compat"] ++ blinkSourcePlugins;
+    startPlugins = ["blink-compat"] ++ blinkSourcePlugins ++ (optional cfg.friendly-snippets.enable "friendly-snippets");
     lazy.plugins = {
       blink-cmp = {
         package = "blink-cmp";