Nvim: minor cmake and telescope changes

.config/nvim/lua/plugins/context.lua

@@ -9,6 +9,7 @@ return {
       enable = true, -- Enable this plugin (Can be enabled/disabled later via commands)
       throttle = true, -- Throttles plugin updates (may improve performance)
       max_lines = 0, -- How many lines the window should span. Values <= 0 mean no limit.
+      mode = 'topline',
       patterns = { -- Match patterns for TS nodes. These get wrapped to match at word boundaries.
         -- For all filetypes
         -- Note that setting an entry here replaces all other patterns for this entry.
@@ -35,7 +36,15 @@ return {
         -- Treat patterns.rust as a Lua pattern (i.e "^impl_item$" will
         -- exactly match "impl_item" only)
         rust = true,
-      }
+      },
+      on_attach = function(buf)
+        local max_filesize = 100 * 1024
+        local ok, stats = pcall(vim.loop.fs_stat, vim.api.nvim_buf_get_name(buf))
+        if ok and stats and stats.size > max_filesize then
+          return false
+        end
+        return true
+      end
     }
   end
 }