How do I create a custom telescope picker able to take the search-path in the prompt itself?

[Akshit-Anand-008]

I saw TJ DeVries's video regarding advanced telescope usage and built a file navigator (fileseek function in the lua script) very similar (Took AI help).

Intended behaviour: Split the prompt into 2 parts using double spaces as delimiter. Use the first part to fuzzy find file and second to specify directory to search.

Problem: I have to use fd with which I can't fuzzy find, I have to write exact name. Also, If I add any sorters, I can't get proper results as it uses the second part of the prompt as well for sorting and therefore, I have to disable it. It basically gives results in very bad search order. How can I fix these 2 issues:

Enable fuzzy finding

Sort the results

What my script does: Create a table args = {"fd", "-t" , "f"} Splits the prompt into 2 pieces, insert the first one into args if second piece exists then insert 2nd piece with --search-path into args.h means search in home directory;w means search in my ~/Notebooks directory;r means search relative to file path and not cwd;each . added moves the one directory back

return {
"nvim-telescope/telescope.nvim",
dependencies = {
{ "nvim-lua/plenary.nvim" },
{ "nvim-telescope/telescope-fzf-native.nvim", build = "make" },
},

config = function()
    require("telescope").setup({
        extensions = { fzf = {} }
    })

    require('telescope').load_extension('fzf')
    local pickers = require "telescope.pickers"
    local finders = require "telescope.finders"
    local make_entry = require "telescope.make_entry"
    local sorters = require "telescope.sorters"
    local builtin = require "telescope.builtin"
    local conf = require("telescope.config").values
    local home_dir = vim.fn.expand("~")

    -- Path builder
    local resolve_path = function(char, len, file_dir, cwd)
        if char == "h" then
            return home_dir
        elseif char == "w" then
            return vim.fn.expand("$NB_DIR")
        elseif char == "r" then
            local p = file_dir
            for _ = 1, len - 1 do p = vim.fn.fnamemodify(p, ":h") end
            return p
        elseif char == "." then
            local p = cwd
            for _ = 1, len do p = vim.fn.fnamemodify(p, ":h") end
            return p
        end
        return nil
    end

    -- fileseek function
    local fileseek = function()
        local f_dir = vim.fn.expand("%:p:h")
        local f_cwd = vim.fn.getcwd()

        local my_finder = finders.new_async_job {
            command_generator = function(prompt)
                local args = { "fd", "--type", "f" }
                local pieces = vim.split(prompt, "  ")
                if pieces[1] and pieces[1] ~= "" then
                    table.insert(args, pieces[1])
                end
                if pieces[2] and pieces[2] ~= "" then
                    local path = resolve_path(pieces[2]:sub(1, 1), #pieces[2], f_dir, f_cwd)
                    table.insert(args, "--search-path")
                    if path then table.insert(args, path) end
                end
                vim.print("$ " .. table.concat(args, " "))
                return args
            end,

            entry_maker = make_entry.gen_from_file()
        }

        pickers.new({}, {
            prompt_title = "FILES",
            finder = my_finder,
            sorter = sorters.empty(),
            previewer = conf.file_previewer({}),
        }):find()
    end
    vim.keymap.set("n", "<leader>ff", fileseek)

end,

}