Close a buffer with an autocommand when the mini.files window is still open

[Gael-Lopes-Da-Silva]

Contributing guidelines

• I have read CODE_OF_CONDUCT.md

Module(s)

mini.files

Question

Hello, I'm trying to create an autocommand that will execute when opening a specific buffer. It would run a command and close the buffer.

What I have right now is this:

create_autocmd("BufReadPost", {
    group = group,
    pattern = { "*.png", "*.jpg", "*.jpeg", "*.gif", "*.webp" },
    callback = function(args)
        vim.fn.jobstart({ "feh", vim.fn.expand(args.file) })

        vim.schedule(function()
            if vim.api.nvim_buf_is_valid(args.buf) then
                vim.api.nvim_buf_delete(args.buf, { force = true })
            end
        end)
    end,
})

The only problem is that when the specific buffer is opened via mini.files the schedule setup to delete this buffer seams to not work. In fact the vim.api.nvim_buf_delete(args.buf, { force = true }) command do nothing. I tried to check the buf id and it seams to be correct. It seams that I'm missing something.

[echasnovski]

This is indeed a weird behavior which sent me to the rabbit whole of debugging the actual source of it. Sparing all the details, it is an Neovim issue: neovim/neovim#20315 .

To solve an actual problem (if I understood it correctly) of opening an image not in Neovim as a text file but rather in a dedicated OS viewer, see this part of example mappings. Yes, it is a different mapping instead of a regular go_in, but I'd say this is a cleaner approach.

If you still want to do this via go_in, I'd suggest creating a buffer local mapping in 'mini.files' that will check file name and act depending on its extension: either a CLI call or a regular go_in().