feat: support ignore_filetype

README.md

@@ -2,10 +2,8 @@
 
 A simple util providing auto indent like VSCode when cursor at the first column and press \<TAB\> key
 
-
 https://github.com/VidocqH/auto-indent.nvim/assets/16725418/b0eda63f-9b7d-4708-8477-00bde49d8f40
 
-
 ## Installation
 
 ### Lazy
@@ -25,8 +23,9 @@ requir("lazy").setup({
 
 ```lua
 {
-  lightmode = true,    -- Lightmode assumes tabstop and indentexpr not change within buffer's lifetime
-  indentexpr = nil,    -- Use vim.bo.indentexpr by default
+  lightmode = true,        -- Lightmode assumes tabstop and indentexpr not change within buffer's lifetime
+  indentexpr = nil,        -- Use vim.bo.indentexpr by default, see 'Custom Indent Evaluate Method'
+  ignore_filetype = {},    -- Disable plugin for specific filetypes, e.g. ignore_filetype = { 'javascript' }
 }
 ```
 

lua/auto-indent.lua

@@ -3,9 +3,11 @@ local module = require("auto-indent.module")
 ---@class Config
 ---@field lightmode boolean
 ---@field indentexpr nil | fun(lnum: integer): integer
+---@field ignore_filetype string[]
 local config = {
   lightmode = true,
   indentexpr = nil,
+  ignore_filetype = {},
 }
 
 ---@class MyModule

lua/auto-indent/utils.lua

@@ -0,0 +1,17 @@
+---@class Utils
+local M = {}
+
+---@generic T
+---@param arr T[]
+---@param val T
+---@return boolean
+M.array_contains = function(arr, val)
+  for _, v in ipairs(arr) do
+    if val == v then
+      return true
+    end
+  end
+  return false
+end
+
+return M

plugin/auto-indent.lua

@@ -1,10 +1,17 @@
+local utils = require("auto-indent.utils")
+
 vim.api.nvim_create_user_command("AutoIndentGetIndents", require("auto-indent").check_indent, {})
 
 vim.api.nvim_create_autocmd("BufRead", {
   callback = function(e)
     local config = require("auto-indent").config
 
     local buf = e.buf
+
+    if utils.array_contains(config.ignore_filetype, vim.api.nvim_buf_get_option(buf, "filetype")) then
+      return
+    end
+
     if config.lightmode then
       require("auto-indent.module").fetch_buf_indent_info(buf, config.indentexpr)
     end