oil-symlink-actions.lua

local M = {}

---add suffix to filename while preserving extensiion
---@param filename string
---@param suffix? string
---@return string modified_name, number start_pos, number end_pos
local function add_name_suffix(filename, suffix)
  if not suffix then
    return filename, 1, #filename
  end

  local ext_start = filename:find('%.[^%.]*$')
  if ext_start then
    local name = filename:sub(1, ext_start - 1)
    local ext = filename:sub(ext_start)
    local new_name = name .. suffix .. ext
    return new_name, 1, #name + #suffix
  else -- no extension
    local new_name = filename .. suffix
    return new_name, 1, #new_name
  end
end

M.yank_path = function(_opts)
  local oil = require('oil')

  local entry = oil.get_cursor_entry()
  local dir = oil.get_current_dir()

  if not entry or not dir then
    vim.notify("No entry under cursor or couldn't get current directory")
    return
  end
  vim.fn.setreg(vim.v.register, entry.name .. '\n' .. dir, 'c')
end

M.paste_symlink = function(opts)
  local oil = require('oil')

  local yanked = vim.fn.getreg(vim.v.register)
  local parts = vim.split(vim.trim(yanked), '\n')

  if #parts ~= 2 then
    vim.notify('No proper entry yanked (use actions.yank_path to yank it first)')
    vim.notify("Found: '" .. yanked .. "' of length (" .. #parts .. ')')
    return
  end

  local src_name, src_dir = parts[1], parts[2]
  local src_path = src_dir .. src_name
  local current_dir = oil.get_current_dir()

  -- add "_link" suffix only if we're in the same directory
  local suffix = current_dir == src_dir and '_link' or nil
  local target_name, start_pos, end_pos = add_name_suffix(src_name, suffix)

  local entry = oil.get_cursor_entry()
  local line = vim.api.nvim_win_get_cursor(0)[1]

  if entry ~= nil then
    line = line + 1
  end

  local link_text = string.format('%s -> %s', target_name, src_path)
  vim.api.nvim_buf_set_lines(0, line - 1, line, false, { link_text })

  -- highlight in visual mode
  vim.api.nvim_win_set_cursor(0, { line, start_pos - 1 })
  vim.cmd('normal! v' .. (end_pos - start_pos) .. 'l')

  logger:info('Created symlink entry: ' .. link_text)
end

return M

Oil.nvim Symlink Action.md

Demo

oil-link.mp4