fix(client): set get_language_id for client

Author: MunifTanjim

lua/copilot/client.lua

@@ -144,6 +144,9 @@ M.merge_server_opts = function(params)
     },
     root_dir = vim.loop.cwd(),
     name = "copilot",
+    get_language_id = function(_, filetype)
+      return util.language_for_file_type(filetype)
+    end,
     on_init = function(client)
       vim.schedule(function()
         ---@type copilot_set_editor_info_params

lua/copilot/util.lua

@@ -155,7 +155,7 @@ local language_normalization_map = {
   text = "plaintext",
 }
 
-local function language_for_file_type(filetype)
+function M.language_for_file_type(filetype)
   -- trim filetypes after dot, e.g. `yaml.gotexttmpl` -> `yaml`
   local ft = string.gsub(filetype, "%..*", "")
   if not ft or ft == "" then
@@ -177,7 +177,6 @@ function M.get_doc()
   local params = vim.lsp.util.make_position_params(0, "utf-16") -- copilot server uses utf-16
   local doc = {
     uri = params.textDocument.uri,
-    languageId = language_for_file_type(vim.bo.filetype),
     version = vim.api.nvim_buf_get_var(0, "changedtick"),
     relativePath = relative_path(absolute),
     insertSpaces = vim.o.expandtab,
@@ -197,7 +196,6 @@ function M.get_doc_params(overrides)
   }, overrides)
   params.textDocument = {
     uri = params.doc.uri,
-    languageId = params.doc.languageId,
     version = params.doc.version,
     relativePath = params.doc.relativePath,
   }