How do I lazy-load plugins on a new buffer?

[comiluv]

Hi everyone
I want to lazy-load plugins when I can actually edit the code on my current buffer. I want to defer loading the plugins when Neovim initially opens netrw because I don't need the plugins I use for netrw. Loading those plugins for netrw would cause some overhead.
I have tried to set up lazy-loading plugins by:

event = { "BufReadPre", "BufReadPost", "BufNewFile" }

This works when reading a file to the buffer, but doesn't work when creating a new file inside neovim using :enew, or on the Neovim's splash screen.
In other words if I sequentially use commands:

1. nvim . in the shell command line, opening netrw on the current working directory
2. :enew in the neovim command line after the netrw is displayed

Doesn't trigger BufReadPre, BufReadPost, or BufNewFile event and I can't lazy load the plugin this way.
This situation also applies to when I open neovim by nvim and arrive at the splash screen, I'd like the plugin to be loaded by this time:

1. nvim in the shell command line without any other argument

I would also like to avoid the plugin to be loaded at opening a netrw buffer by nvim .

To summarize, I want a plugin to be loaded when:

1. Opening a file
2. nvim, then on the splash screen with an empty buffer
3. After nvim . then :enew

But not loaded when:

1. nvim . which opens netrw on my current working directory
2. nvim [any directory] which opens netrw on the argument directory

Can someone help me set up plugins to lazy-load the plugins in this context?
Thank you.

[yutkat]

I would suggest using BufNew or BufWinEnter.

try
:autocmd BufNew * :echo "aaa" or :autocmd BufWinEnter * :echo "aaa"
:enew

[comiluv]

Thank you for you answer.
I'd like to not load the plugin when Neovim opens the current working directory in netrw when nvim ., but both BufNew and BufWinEnter triggers lazy-loading on netrw buffer.

[yutkat]

The other event I can think of is to use CmdlineEnter.

If you don't want to start the plugin at all otherwise, I think the only way is to create a new command such as :Enew and set cabbrev enew Enew and use :enew cmd to lazy starting the plugin.

Personally, I think you are a little too nervous about lazy.