feat: support codex acp provider (#2774)

lua/avante/config.lua

@@ -262,6 +262,13 @@ M._defaults = {
       command = "goose",
       args = { "acp" },
     },
+    ["codex"] = {
+      command = "codex-acp",
+      env = {
+        NODE_NO_WARNINGS = "1",
+        OPENAI_API_KEY = os.getenv("OPENAI_API_KEY"),
+      },
+    },
   },
   ---To add support for custom provider, follow the format below
   ---See https://github.com/yetone/avante.nvim/wiki#custom-providers for more details

lua/avante/history/render.lua

@@ -86,7 +86,11 @@ end
 local function thinking_to_lines(item)
   local text = item.thinking or item.data or ""
   local text_lines = vim.split(text, "\n")
-  --- trime suffix empty lines
+  --- trim prefix empty lines
+  while #text_lines > 0 and text_lines[1] == "" do
+    table.remove(text_lines, 1)
+  end
+  --- trim suffix empty lines
   while #text_lines > 0 and text_lines[#text_lines] == "" do
     table.remove(text_lines, #text_lines)
   end

lua/avante/libs/acp_client.lua

@@ -509,7 +509,7 @@ function ACPClient:_send_result(id, result)
 
   local data = vim.json.encode(message)
   if self.debug_log_file then
-    self.debug_log_file:write("request: " .. data .. string.rep("=", 100) .. "\n")
+    self.debug_log_file:write("request: " .. data .. "\n" .. string.rep("=", 100) .. "\n")
     self.debug_log_file:flush()
   end
   self.transport:send(data)

lua/avante/llm.lua

@@ -907,7 +907,7 @@ function M._stream_acp(opts)
     end
     if opts.on_messages_add then
       opts.on_messages_add(messages)
-      vim.schedule(function() vim.cmd("redraw") end)
+      -- vim.schedule(function() vim.cmd("redraw") end)
     end
   end
   local function add_tool_call_message(update)
@@ -992,6 +992,24 @@ function M._stream_acp(opts)
           end
           if update.sessionUpdate == "agent_thought_chunk" then
             if update.content.type == "text" then
+              local messages = opts.get_history_messages()
+              local last_message = messages[#messages]
+              if last_message and last_message.message.role == "assistant" then
+                local is_thinking = false
+                local content = last_message.message.content
+                if type(content) == "table" then
+                  for idx, item in ipairs(content) do
+                    if type(item) == "table" and item.type == "thinking" then
+                      is_thinking = true
+                      content[idx].thinking = content[idx].thinking .. update.content.text
+                    end
+                  end
+                end
+                if is_thinking then
+                  on_messages_add({ last_message })
+                  return
+                end
+              end
               local message = History.Message:new("assistant", {
                 type = "thinking",
                 thinking = update.content.text,

lua/avante/sidebar.lua

@@ -1949,7 +1949,7 @@ function Sidebar:get_message_lines(ctx, message, messages, ignore_record_prefix)
       if type(item) == "string" then
         text_len = text_len + #item
       else
-        for _, subitem in ipairs(item) do
+        for _, subitem in pairs(item) do
           if type(subitem) == "string" then text_len = text_len + #subitem end
         end
       end