feat: respect git ignore for autosuggestions (#994)

lua/avante/config.lua

@@ -124,6 +124,7 @@ M._defaults = {
   behaviour = {
     auto_focus_sidebar = true,
     auto_suggestions = false, -- Experimental stage
+    auto_suggestions_respect_ignore = false,
     auto_set_highlight_group = true,
     auto_set_keymaps = true,
     auto_apply_diff_after_generation = false,

lua/avante/suggestion.lua

@@ -22,6 +22,8 @@ local SUGGESTION_NS = api.nvim_create_namespace("avante_suggestion")
 ---@field id number
 ---@field augroup integer
 ---@field extmark_id integer
+---@field ignore_patterns table
+---@field negate_patterns table
 ---@field _timer? table
 ---@field _contexts table
 local Suggestion = {}
@@ -31,10 +33,15 @@ Suggestion.__index = Suggestion
 ---@return avante.Suggestion
 function Suggestion:new(id)
   local instance = setmetatable({}, self)
+  local gitignore_path = Utils.get_project_root() .. "/.gitignore"
+  local gitignore_patterns, gitignore_negate_patterns = Utils.parse_gitignore(gitignore_path)
+
   instance.id = id
   instance.extmark_id = 1
   instance._timer = nil
   instance._contexts = {}
+  instance.ignore_patterns = gitignore_patterns
+  instance.negate_patterns = gitignore_negate_patterns
   if Config.behaviour.auto_suggestions then
     if not vim.g.avante_login or vim.g.avante_login == false then
       api.nvim_exec_autocmds("User", { pattern = Providers.env.REQUEST_LOGIN_PATTERN })
@@ -290,6 +297,14 @@ function Suggestion:setup_autocmds()
 
     if vim.bo.buftype ~= "" then return end
 
+    local full_path = api.nvim_buf_get_name(0)
+    if
+      Config.behaviour.auto_suggestions_respect_ignore
+      and Utils.is_ignored(full_path, self.ignore_patterns, self.negate_patterns)
+    then
+      return
+    end
+
     local ctx = self:ctx()
 
     if ctx.prev_doc and vim.deep_equal(ctx.prev_doc, Utils.get_doc()) then return end

lua/avante/utils/init.lua

@@ -633,7 +633,7 @@ function M.parse_gitignore(gitignore_path)
   return ignore_patterns, negate_patterns
 end
 
-local function is_ignored(file, ignore_patterns, negate_patterns)
+function M.is_ignored(file, ignore_patterns, negate_patterns)
   for _, pattern in ipairs(negate_patterns) do
     if file:match(pattern) then return false end
   end
@@ -657,7 +657,7 @@ function M.scan_directory(directory, ignore_patterns, negate_patterns)
     if type == "directory" then
       vim.list_extend(files, M.scan_directory(full_path, ignore_patterns, negate_patterns))
     elseif type == "file" then
-      if not is_ignored(full_path, ignore_patterns, negate_patterns) then table.insert(files, full_path) end
+      if not M.is_ignored(full_path, ignore_patterns, negate_patterns) then table.insert(files, full_path) end
     end
   end