autopairs + cleanup

nvim/lua/config/autocmd.lua

@@ -1,7 +1,6 @@
 -- create undopath
-local undopath = vim.fn.stdpath('data') .. 'undo'
 vim.api.nvim_create_autocmd('VimEnter', {
-  command = 'silent !mkdir -p ' .. undopath,
+  command = 'silent !mkdir -p ' .. vim.fn.stdpath('data') .. 'undo',
   group = vim.api.nvim_create_augroup('Init', {}),
 })
 
@@ -55,3 +54,57 @@ vim.api.nvim_create_autocmd({ 'FocusGained', 'TermClose', 'TermLeave' }, {
     end
   end,
 })
+
+-- Init treesitter
+vim.api.nvim_create_autocmd('FileType', {
+  callback = function(event)
+    local bufnr = event.buf
+    local filetype = vim.api.nvim_get_option_value('filetype', { buf = bufnr })
+
+    if filetype == '' then
+      return
+    end
+
+    local parser_name = vim.treesitter.language.get_lang(filetype)
+    if not parser_name then
+      return
+    end
+    local parser_installed = pcall(vim.treesitter.get_parser, bufnr, parser_name)
+    if not parser_installed then
+      return
+    end
+
+    local function map(lhs, rhs, opts)
+      if lhs == '' then
+        return
+      end
+      opts = vim.tbl_deep_extend('force', { silent = true }, opts or {})
+      vim.keymap.set({ 'v', 'n' }, lhs, rhs, opts)
+    end
+
+    vim.bo.indentexpr = "v:lua.require'nvim-treesitter'.indentexpr()"
+    vim.treesitter.start()
+
+    map('[c', function()
+      require('treesitter-context').go_to_context(vim.v.count1)
+    end, { desc = 'jump to TS context' })
+    map(']f', function()
+      require('nvim-treesitter-textobjects.move').goto_next_start('@function.outer', 'textobjects')
+    end, { desc = 'next function def' })
+    map('[f', function()
+      require('nvim-treesitter-textobjects.move').goto_previous_start('@function.outer', 'textobjects')
+    end, { desc = 'prev function def' })
+    map(']a', function()
+      require('nvim-treesitter-textobjects.move').goto_next_start('@parameter.inner', 'textobjects')
+    end, { desc = 'next param def' })
+    map('[a', function()
+      require('nvim-treesitter-textobjects.move').goto_previous_start('@parameter.inner', 'textobjects')
+    end, { desc = 'prev param def' })
+    map('a]', function()
+      require('nvim-treesitter-textobjects.swap').swap_next('@parameter.inner')
+    end, { desc = 'swap next arg' })
+    map('a[', function()
+      require('nvim-treesitter-textobjects.swap').swap_previous('@parameter.inner')
+    end, { desc = 'swap prev arg' })
+  end,
+})