improve: support to customize the avanterules directories for project/global (#2392)

README.md

@@ -1137,6 +1137,23 @@ The rules for root hierarchy:
 - root pattern of filename of the current buffer
 - root pattern of cwd
 
+You can also configure custom directories for your `avanterules` files using the `rules` option:
+
+```lua
+require('avante').setup({
+  rules = {
+    project_dir = '.avante/rules', -- relative to project root, can also be an absolute path
+    global_dir = '~/.config/avante/rules', -- absolute path
+  },
+})
+```
+
+The loading priority is as follows:
+
+1.  `rules.project_dir`
+2.  `rules.global_dir`
+3.  Project root
+
 <details>
 
   <summary>Example folder structure for custom prompt</summary>

README_zh.md

@@ -960,6 +960,23 @@ vim.keymap.set("n", "<leader>am", function() vim.api.nvim_exec_autocmds("User",
 - 当前缓冲区的文件名的根模式
 - cwd 的根模式
 
+您还可以使用 `rules` 选项为您的 `avanterules` 文件配置自定义目录：
+
+```lua
+require('avante').setup({
+  rules = {
+    project_dir = '.avante/rules', -- 相对于项目根目录，也可以是绝对路径
+    global_dir = '~/.config/avante/rules', -- 绝对路径
+  },
+})
+```
+
+加载优先级如下：
+
+1.  `rules.project_dir`
+2.  `rules.global_dir`
+3.  项目根目录
+
 <details>
 
   <summary>自定义提示的示例文件夹结构</summary>

lua/avante/config.lua

@@ -40,6 +40,10 @@ M._defaults = {
   tokenizer = "tiktoken",
   ---@type string | (fun(): string) | nil
   system_prompt = nil,
+  rules = {
+    project_dir = nil, ---@type string | nil (could be relative dirpath)
+    global_dir = nil, ---@type string | nil (absolute dirpath)
+  },
   rag_service = { -- RAG service configuration
     enabled = false, -- Enables the RAG service
     host_mount = os.getenv("HOME"), -- Host mount path for the RAG service (Docker will mount this path)

lua/avante/path.lua

@@ -222,22 +222,35 @@ function Prompt.get_templates_dir(project_root)
   local cache_prompt_dir = P.cache_path:joinpath(directory)
   if not cache_prompt_dir:exists() then cache_prompt_dir:mkdir({ parents = true }) end
 
-  local scanner = Scan.scan_dir(directory:absolute(), { depth = 1, add_dirs = true })
-  for _, entry in ipairs(scanner) do
-    local file = Path:new(entry)
-    if file:is_file() then
-      local pieces = vim.split(entry, "/")
-      local piece = pieces[#pieces]
-      local mode = piece:match("([^.]+)%.avanterules$")
-      if not mode or not Prompt.custom_modes[mode] then goto continue end
-      if Prompt.custom_prompts_contents[mode] == nil then
-        Utils.info(string.format("Using %s as %s system prompt", entry, mode))
-        Prompt.custom_prompts_contents[mode] = file:read()
+  local function find_rules(dir)
+    if not dir then return end
+    if vim.fn.isdirectory(dir) ~= 1 then return end
+
+    local scanner = Scan.scan_dir(dir, { depth = 1, add_dirs = true })
+    for _, entry in ipairs(scanner) do
+      local file = Path:new(entry)
+      if file:is_file() then
+        local pieces = vim.split(entry, "/")
+        local piece = pieces[#pieces]
+        local mode = piece:match("([^.]+)%.avanterules$")
+        if not mode or not Prompt.custom_modes[mode] then goto continue end
+        if Prompt.custom_prompts_contents[mode] == nil then
+          Utils.info(string.format("Using %s as %s system prompt", entry, mode))
+          Prompt.custom_prompts_contents[mode] = file:read()
+        end
       end
+      ::continue::
     end
-    ::continue::
   end
 
+  if Config.rules.project_dir then
+    local project_rules_path = Path:new(Config.rules.project_dir)
+    if not project_rules_path:is_absolute() then project_rules_path = directory:joinpath(project_rules_path) end
+    find_rules(tostring(project_rules_path))
+  end
+  find_rules(Config.rules.global_dir)
+  find_rules(directory:absolute())
+
   Path:new(debug.getinfo(1).source:match("@?(.*/)"):gsub("/lua/avante/path.lua$", "") .. "templates")
     :copy({ destination = cache_prompt_dir, recursive = true })