[mini.pick] oldfiles picker restricted to items inside current working directory

[abeldekat]

In my workflow, each project is opened in a tmux session. As such, when querying oldfiles, I am mostly interested in files inside the current working directory.

Function MiniExtra.pickers.oldfiles currently does not filter on cwd:

    for _, path in ipairs(oldfiles) do
      if vim.fn.filereadable(path) == 1 then table.insert(res, H.short_path(path, cwd)) end
    end

My implementation, using flag cwd_only:

local H = {} -- Helper functions for custom pickers
local Path = require("plenary.path")
local Pick = require("mini.pick")

-- from telescope oldfiles:
H.buf_in_cwd = function(bufname, cwd)
  if cwd:sub(-1) ~= Path.path.sep then cwd = cwd .. Path.path.sep end
  local bufname_prefix = bufname:sub(1, #cwd)
  return bufname_prefix == cwd
end

-- mini.extra:
H.error = function(msg) error(string.format("(ak.extra) %s", msg), 0) end

-- mini.extra:
H.short_path = function(path, cwd)
  cwd = cwd or vim.fn.getcwd()
  if not vim.startswith(path, cwd) then return vim.fn.fnamemodify(path, ":~") end
  local res = path:sub(cwd:len() + 1):gsub("^/+", ""):gsub("/+$", "")
  return res
end

-- mini.extra:
H.show_with_icons = function(buf_id, items, query) Pick.default_show(buf_id, items, query, { show_icons = true }) end

-- mini.extra:
H.pick_get_config = function() return vim.tbl_deep_extend("force", Pick.config or {}, vim.b.minipick_config or {}) end

-- mini.extra:
H.pick_start = function(items, default_opts, opts)
  local fallback = {
    source = {
      preview = Pick.default_preview,
      choose = Pick.default_choose,
      choose_marked = Pick.default_choose_marked,
    },
  }
  local opts_final = vim.tbl_deep_extend("force", fallback, default_opts, opts or {}, { source = { items = items } })
  return Pick.start(opts_final)
end

Pick.registry.oldfiles_with_filter = function(local_opts, opts)
  local oldfiles = vim.v.oldfiles
  if not vim.islist(oldfiles) then H.error("`pickers.oldfiles` picker needs valid `v:oldfiles`.") end

  local filter = local_opts and local_opts.cwd_only or false
  local items = vim.schedule_wrap(function()
    local cwd = Pick.get_picker_opts().source.cwd
    local res = {}
    for _, path in ipairs(oldfiles) do
      if vim.fn.filereadable(path) == 1 then
        local use = not filter and true or H.buf_in_cwd(path, cwd) -- added condition
        if use then table.insert(res, H.short_path(path, cwd)) end
      end
    end
    Pick.set_picker_items(res)
  end)

  local show = H.pick_get_config().source.show or H.show_with_icons
  return H.pick_start(items, { source = { name = "Old files cwd", show = show } }, opts)
end

vim.keymap.set(
  "n",
  "<leader>r",
  function() Pick.registry.oldfiles_with_filter({ cwd_only = true }) end,
  { desc = "Recent (rel)" }
)

[echasnovski]

Hmmm... As there is a precedent in MiniStarter.sections.recent_files() with current_dir flag, I think having same flag in local_opts of MiniExtra.pickers.oldfiles() might be a good idea.

You're welcome to create an issue about this (or straight up PR, if you'd like; should be a three line change in code plus docs and tests).

[abeldekat]

I will write a PR!

[abeldekat]

PR