feat(nvim): only show cursorline on active buffer

roles/neovim/files/lua/opdavies/options.lua

@@ -18,6 +18,22 @@ local function set_autocmd()
     "VimResized *",
     { command = ":wincmd =" }
   )
+
+  -- Cursorline highlighting control.
+  --  Only have it on in the current buffer.
+  local group = vim.api.nvim_create_augroup("CursorLineControl", { clear = true })
+  local set_cursorline = function(event, value, pattern)
+    vim.api.nvim_create_autocmd(event, {
+      group = group,
+      pattern = pattern,
+      callback = function()
+        vim.opt_local.cursorline = value
+      end,
+    })
+  end
+  set_cursorline("WinLeave", false)
+  set_cursorline("WinEnter", true)
+  set_cursorline("FileType", false, "TelescopePrompt")
 end
 
 local function set_filetypes()