fix: open buffer (#2340)

lua/avante/llm_tools/helpers.lua

@@ -136,10 +136,11 @@ end
 function M.get_bufnr(abs_path)
   local sidebar = require("avante").get()
   if not sidebar then return 0, "Avante sidebar not found" end
-  local current_winid = vim.api.nvim_get_current_win()
-  vim.api.nvim_set_current_win(sidebar.code.winid)
-  local bufnr = Utils.open_buffer(abs_path)
-  vim.api.nvim_set_current_win(current_winid)
+  local bufnr
+  vim.api.nvim_win_call(sidebar.code.winid, function()
+    vim.cmd("edit " .. abs_path)
+    bufnr = vim.api.nvim_get_current_buf()
+  end)
   return bufnr, nil
 end
 

lua/avante/utils/init.lua

@@ -1021,10 +1021,18 @@ function M.open_buffer(path, set_current_buf)
 
   local abs_path = M.join_paths(M.get_project_root(), path)
 
-  local bufnr = vim.fn.bufnr(abs_path, true)
-  pcall(vim.fn.bufload, bufnr)
-
-  if set_current_buf then vim.cmd("buffer " .. bufnr) end
+  local bufnr ---@type integer
+  if set_current_buf then
+    bufnr = vim.fn.bufnr(abs_path)
+    if bufnr ~= -1 and vim.api.nvim_buf_is_loaded(bufnr) and vim.bo[bufnr].modified then
+      vim.api.nvim_buf_call(bufnr, function() vim.cmd("noautocmd write") end)
+    end
+    vim.cmd("noautocmd edit " .. abs_path)
+    bufnr = vim.api.nvim_get_current_buf()
+  else
+    bufnr = vim.fn.bufnr(abs_path, true)
+    pcall(vim.fn.bufload, bufnr)
+  end
 
   vim.cmd("filetype detect")