Restructure

config/nvim/lua/core/autocmds.lua

@@ -0,0 +1,42 @@
+-- core/autocmds.lua
+local aug = vim.api.nvim_create_augroup
+local au = vim.api.nvim_create_autocmd
+
+-- highlight yanked text briefly
+au("TextYankPost", {
+  group = aug("highlight_yank", { clear = true }),
+  callback = function() vim.highlight.on_yank({ timeout = 150 }) end,
+})
+
+-- restore last cursor position when reopening a file
+au("BufReadPost", {
+  group = aug("last_loc", { clear = true }),
+  callback = function(ev)
+    local mark = vim.api.nvim_buf_get_mark(ev.buf, '"')
+    local lines = vim.api.nvim_buf_line_count(ev.buf)
+    if mark[1] > 0 and mark[1] <= lines then
+      pcall(vim.api.nvim_win_set_cursor, 0, mark)
+    end
+  end,
+})
+
+-- trim trailing whitespace on save (skip filetypes where it matters)
+au("BufWritePre", {
+  group = aug("trim_ws", { clear = true }),
+  callback = function()
+    if vim.bo.filetype == "diff" or vim.bo.filetype == "markdown" then return end
+    local view = vim.fn.winsaveview()
+    vim.cmd([[silent! keeppatterns %s/\s\+$//e]])
+    vim.fn.winrestview(view)
+  end,
+})
+
+-- auto-create parent dirs on save
+au("BufWritePre", {
+  group = aug("mkdir_on_save", { clear = true }),
+  callback = function(ev)
+    if ev.match:match("^%w+://") then return end
+    local dir = vim.fn.fnamemodify(ev.file, ":p:h")
+    if vim.fn.isdirectory(dir) == 0 then vim.fn.mkdir(dir, "p") end
+  end,
+})