1 files changed, 33 insertions, 0 deletions

diff --git a/neovim/.config/nvim/lua/plugins/filetree.lua b/neovim/.config/nvim/lua/plugins/filetree.lua
new file mode 100644
index 0000000..cdee9f7
--- /dev/null
+++ b/neovim/.config/nvim/lua/plugins/filetree.lua
@@ -0,0 +1,33 @@
+return {
+  "preservim/nerdtree",
+  lazy = false,
+  config = function()
+    -- Open NERDTree when no file is specified; quit when it's the last window
+    local augroup = vim.api.nvim_create_augroup("nerdtree_auto", { clear = true })
+
+    vim.api.nvim_create_autocmd("StdinReadPre", {
+      group = augroup,
+      callback = function()
+        vim.g.std_in = 1
+      end,
+    })
+
+    vim.api.nvim_create_autocmd("VimEnter", {
+      group = augroup,
+      callback = function()
+        if vim.fn.argc() == 0 and vim.g.std_in == nil then
+          vim.cmd("NERDTree")
+        end
+      end,
+    })
+
+    vim.api.nvim_create_autocmd("BufEnter", {
+      group = augroup,
+      callback = function()
+        if vim.fn.winnr("$") == 1 and vim.bo.filetype == "nerdtree" then
+          vim.cmd("quit")
+        end
+      end,
+    })
+  end,
+}