1 files changed, 56 insertions, 0 deletions

diff --git a/nvim/lua/config/autocmds.lua b/nvim/lua/config/autocmds.lua
new file mode 100644
index 0000000..e11b231
--- /dev/null
+++ b/nvim/lua/config/autocmds.lua
@@ -0,0 +1,56 @@
+-- https://github.com/nvim-treesitter/nvim-treesitter/blob/main/doc/nvim-treesitter.txt
+vim.api.nvim_create_autocmd('FileType', {
+  pattern = { "c", "cpp", "lua", "typescript" },
+  callback = function()
+    vim.treesitter.start()
+    vim.wo.foldexpr = 'v:lua.vim.treesitter.foldexpr()'
+    vim.wo.foldmethod = 'expr'
+    vim.bo.indentexpr = "v:lua.require'nvim-treesitter'.indentexpr()"
+  end,
+})
+
+-- https://github.com/nvim-tree/nvim-tree.lua/wiki/Open-At-Startup
+vim.api.nvim_create_autocmd("VimEnter", {
+  callback = function(data)
+    -- buffer is a real file on the disk
+    local real_file = vim.fn.filereadable(data.file) == 1
+
+    -- buffer is a [No Name]
+    local no_name = data.file == "" and vim.bo[data.buf].buftype == ""
+
+    if not real_file and not no_name then
+      return
+    end
+
+    -- open the tree, find the file but don't focus it
+    require("nvim-tree.api").tree.toggle({ focus = false, find_file = true, })
+  end
+})
+
+-- https://github.com/nvim-tree/nvim-tree.lua/wiki/Auto-Close
+vim.api.nvim_create_autocmd("QuitPre", {
+  callback = function()
+    local invalid_win = {}
+    local wins = vim.api.nvim_list_wins()
+
+    for _, w in ipairs(wins) do
+      local bufname = vim.api.nvim_buf_get_name(vim.api.nvim_win_get_buf(w))
+      if bufname:match("NvimTree_") ~= nil then
+        table.insert(invalid_win, w)
+      end
+    end
+
+    if #invalid_win == #wins - 1 then
+      -- Should quit, so we close all invalid windows.
+      for _, w in ipairs(invalid_win) do vim.api.nvim_win_close(w, true) end
+    end
+  end
+})
+
+vim.api.nvim_create_autocmd("LspAttach", {
+  callback = function(event)
+    local client = vim.lsp.get_client_by_id(event.data.client_id)
+    local keymaps = require("config.keymaps")
+    keymaps.lsp(event.buf, client)
+  end,
+})