Merge pull request #25229 from glepnir/20323

fix(highlight): add force in nvim_set_hl

src/nvim/api/keysets.h

@@ -169,6 +169,7 @@ typedef struct {
   Integer blend;
   Boolean fg_indexed;
   Boolean bg_indexed;
+  Boolean force;
 } Dict(highlight);
 
 typedef struct {

src/nvim/api/vim.c

@@ -151,6 +151,7 @@ Dictionary nvim_get_hl(Integer ns_id, Dict(get_highlight) *opts, Arena *arena, E
 ///                - cterm: cterm attribute map, like |highlight-args|. If not set,
 ///                         cterm attributes will match those from the attribute map
 ///                         documented above.
+///                - force: if true force update the highlight group when it exists.
 /// @param[out] err Error details, if any
 ///
 // TODO(bfredl): val should take update vs reset flag

src/nvim/highlight_group.c

@@ -799,11 +799,10 @@ int lookup_color(const int idx, const bool foreground, TriState *const boldp)
 void set_hl_group(int id, HlAttrs attrs, Dict(highlight) *dict, int link_id)
 {
   int idx = id - 1;  // Index is ID minus one.
-
   bool is_default = attrs.rgb_ae_attr & HL_DEFAULT;
 
   // Return if "default" was used and the group already has settings
-  if (is_default && hl_has_settings(idx, true)) {
+  if (is_default && hl_has_settings(idx, true) && !dict->force) {
     return;
   }