Autoreload vimrc when writing to vimscript files

Question

I wanted to have my vimrc automatically update when I write to a .vim file using this autocmd:

autocmd BufWritePost *.vim,$MYVIMRC source $MYVIMRC

But for some reason when I have this enabled and then do :w in my vimrc, my vimrc is pasted into my current buffer at the cursor position. How can I prevent this, and why does source behave like this?

If you do :source $MYVIMRC manually, does this happen? If so, its probably a bug in your vimrc — D. Ben Knoble, Nov 10 '19 at 14:08
No, it did not happen if I sourced manually.. I don't exactly know what does it but with this code it works:
autocmd! | autocmd BufWritePost *.vim,vimrc,$MYVIMRC ++once source $MYVIMRC | e | augroup END — stimulate, Nov 10 '19 at 14:17
Feel free to post it as an answer. I can explain what it does, but the original issue may be a quirk of your vimrc. See https://vi.stackexchange.com/q/2003/10604 — D. Ben Knoble, Nov 10 '19 at 14:19
It would still be nice to understand why the original autocmd wasn't working... Anything specific in your vimrc that was causing that problem? — filbranden, Nov 10 '19 at 17:25

score 1 · Accepted Answer · edited Nov 10 '19 at 16:41

1

This code works:

augroup reload_vimrc
    autocmd!
    autocmd BufWritePost *.vim,vimrc,$MYVIMRC ++once source $MYVIMRC | e
augroup END

It

does the augroup group/autocmd! dance to set up a group and clear any commands already in it
establishes a one-time (++once) autocmd that
1. sources the vimrc
2. uses :edit to re-edit the current file (effectively sourcing its ftplugins and such again)
Ends the group

edited Nov 10 '19 at 16:41

D. Ben Knoble

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answered Nov 10 '19 at 14:21

stimulate

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OP, I've edited to explain the code. If you feel that is inappropriate, rollback and ping me and I'll add my own answer. – D. Ben Knoble Nov 10 '19 at 16:41
Well, thank you. – stimulate Nov 10 '19 at 17:59

Autoreload vimrc when writing to vimscript files

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