Delay when opening Yazi with vim-projectionist

[juanibiapina]

First of all thanks for the support ❤️

There's a delay when running :Yazi with vim-projectionist and the following config (note the * glob pattern):

vim.g.projectionist_heuristics = { ["*"] = {} }

Minimal reproducible example based on repro.lua. I marked the two ADDED lines.

repro.lua:

-- You can use this file to reproduce an issue with your configuration.

---@module "yazi"
---@module "lazy"

-- DO NOT change the paths and don't remove the colorscheme
local root = vim.fn.fnamemodify("./.repro", ":p")

-- set stdpaths to use .repro
for _, name in ipairs({ "config", "data", "state", "cache" }) do
  vim.env[("XDG_%s_HOME"):format(name:upper())] = root .. "/" .. name
end

-- bootstrap lazy
local lazypath = root .. "/plugins/lazy.nvim"
if not vim.loop.fs_stat(lazypath) then
  vim.fn.system({
    "git",
    "clone",
    "--filter=blob:none",
    "https://github.com/folke/lazy.nvim.git",
    lazypath,
  })
end
vim.opt.runtimepath:prepend(lazypath)
vim.g.mapleader = " "

-- install the following plugins
---@type LazySpec
local plugins = {
  { "catppuccin/nvim", name = "catppuccin", opts = { flavour = "macchiato" } },
  { "tpope/vim-projectionist" }, -- ADDED
  {
    "mikavilpas/yazi.nvim",
    event = "VeryLazy",
    keys = {
      {
        "<leader>-",
        "<cmd>Yazi<cr>",
        desc = "Open yazi at the current file",
      },
      {
        -- Open in the current working directory
        "<leader>cw",
        "<cmd>Yazi cwd<cr>",
        desc = "Open the file manager in nvim's working directory",
      },
      {
        -- NOTE: this requires a version of yazi that includes
        -- https://github.com/sxyazi/yazi/pull/1305 from 2024-07-18
        "<c-up>",
        "<cmd>Yazi toggle<cr>",
        desc = "Resume the last yazi session",
      },
    },
    ---@type YaziConfig
    opts = {
      open_for_directories = false,
      log_level = vim.log.levels.DEBUG,
    },
  },
}
require("lazy").setup(plugins, {
  root = root .. "/plugins",
  install = { colorscheme = { "catppuccin" } },
})

vim.g.projectionist_heuristics = { ["*"] = {} } -- ADDED

vim.cmd.colorscheme("catppuccin")
-- add anything else here

Extracted from #603

[mikavilpas]

Thanks a lot for the reproduction! It was very helpful, and I was able to reproduce the issue.

It looks like that plugin hijacks a huge number of internal calls. I didn't figure out what exactly causes the slowdown, but I found some workarounds that resolve it:

1. https://github.com/tpope/vim-projectionist/blob/5ff7bf79a6ef741036d2038a226bcb5f8b1cd296/plugin/projectionist.vim?plain=1#L34-L35 allows setting vim.g.projectionist_ignore_term = true somewhere in your config. This resolved the slowdown for me. I think it disables lookups for terminal related calls.
2. A more sophisticated mechanism seems to have been added here tpope/vim-projectionist@df1e28d. I think you could also add that function in your config and check if the buffer's filetype is "yazi" as in here

   yazi.nvim/lua/yazi/window.lua

   Line 114 in 1361375

   vim.bo[yazi_buffer].filetype = "yazi"

[juanibiapina]

Thanks for the support! This also solves it for me. Given how much stuff vim-projectionist is doing, I don't think it's an issue with yazi.vim.

[mikavilpas]

Closing this as it seems everything has been resolved 👍🏻