Add the :Rename command

lua/commands.lua

@@ -11,9 +11,6 @@ vim.api.nvim_create_user_command('TabWidth', function(opts)
   vim.opt.softtabstop = width
 end, { nargs = 1 })
 
--- TODO: :Rename
--- vim.loop.fs_rename
-
 -- :Remove the file associated with the current buffer, then delete the buffer
 vim.api.nvim_create_user_command('Remove', function(opts)
   local path = vim.fn.expand('%:p')
@@ -45,3 +42,35 @@ vim.api.nvim_create_user_command('Remove', function(opts)
 end, { bang = true })
 
 -- TODO: :Move
+
+-- :Rename the file associated with current buffer
+vim.api.nvim_create_user_command('Rename', function(opts)
+  local from = vim.fn.expand('%')
+  local buffer = vim.api.nvim_get_current_buf()
+  local to = nil
+  local dir = vim.fn.expand('%:h')
+  if dir == '.' then
+    to = opts.args
+  else
+    to = dir .. '/' .. opts.args
+  end
+  vim.loop.fs_rename(from, to, function(err, success)
+    if not success then
+      error(err)
+    else
+      vim.schedule(function()
+        vim.cmd('edit ' .. to)
+        vim.api.nvim_buf_delete(buffer, {})
+      end)
+    end
+  end)
+end, {
+  nargs = 1,
+  complete = function()
+    return { vim.fn.expand('%:t') }
+  end
+})
+
+-- TODO: :Chmod
+
+-- TODO: :Mkdir