fix for issue #92 default_mapping=false

lua/navigator/lspclient/mapping.lua

@@ -108,7 +108,9 @@ local function set_mapping(user_opts)
     vim.list_extend(key_maps, ccls_mappings)
   end
 
+  if _NgConfigValues.default_mapping ~= false then
     for _, v in pairs(user_key) do
+      trace("binding", v)
       local exists = false
       for _, default in pairs(key_maps) do
         if v.func == default.func and (not default.override) then
@@ -120,6 +122,10 @@ local function set_mapping(user_opts)
         table.insert(key_maps, v)
       end
     end
+  else
+    key_maps = _NgConfigValues.keymaps or {}
+    log("setting maps to ", key_maps)
+  end
   local fmtkey, rfmtkey
   for _, value in pairs(key_maps) do
     local f = "<Cmd>lua vim.lsp.buf." .. value.func .. "<CR>"
@@ -141,7 +147,7 @@ local function set_mapping(user_opts)
     elseif string.find(value.func, "formatting") then
       fmtkey = value.key
     end
-    trace("binding", k, f)
+    log("binding", k, f)
     set_keymap(m, k, f, opts)
   end
 
@@ -154,14 +160,14 @@ local function set_mapping(user_opts)
         autocmd BufWritePre <buffer> lua vim.lsp.buf.formatting()
       aug END
      ]])
-  else
+  elseif fmtkey then
     del_keymap('n', fmtkey)
   end
   if user_opts.cap.document_range_formatting then
     log("formatting enabled", user_opts.cap)
   end
 
-  if not range_fmt then
+  if not range_fmt and rfmtkey then
     del_keymap("v", rfmtkey)
   end
 
@@ -220,9 +226,7 @@ end
 
 function M.setup(user_opts)
   user_opts = user_opts or _NgConfigValues
-  if _NgConfigValues.default_mapping == true then
   set_mapping(user_opts)
-  end
 
   autocmd(user_opts)
   set_event_handler(user_opts)