add function to create augroup autocmd #6339
Description
Given that now we have a proper lua support one feature I'm currently missing is the capability to add to define/undefined augroup and register for autocmd events without using eval and string concatenation.
Would it be possible to create a vim script function that exposes this so we can easily use vim.fn.* apis from lua?
There is a PR for this in neovim but is lua only api. neovim/neovim#12378. It could be better to make it a vimscript api so lua gets it automatically.
From PR docs it looks like this in lua.
vim.define_autocmd({"DirChanged"}, "*", {
on_event = function()
print("New cwd: ", vim.v.event.cwd)
end
}, {})
vim.define_augroup("ExampleGroup", true)
vim.define_autocmd(
{"FileType"},
"*",
{on_event = function() print(vim.bo.filetype) end},
{group = "ExampleGroup"} -- NOTE: <- Here's the group assignment
)One change could be to make the on_event to also take a parameter so we don't have to use v:event. I have always found v:event sort of hack but that is most likely since autocmd events can't capture the event data.
lua <<EOF
vim.fn.define_augroup("asyncomplete", true) -- false to unregister
vim.fn.define_autocmd({
events = "InsertEnter,InsertLeave", -- could be vim.list too
pattern = "*",
once = false,
nested = false,
group = "asyncomplete",
on_event = function (e)
print(e) -- where e is v:event
-- i would also like to have e.type so I know if it is InsertEnter or InsertLeave
end
})
EOF