feat(todo): rewrite todomanager using lua

.stylua.toml

@@ -1,4 +1,4 @@
-column_width = 80
+column_width = 100
 line_endings = "Unix"
 indent_type = "Spaces"
 indent_width = 2

lua/spacevim/plugin/todo.lua

@@ -0,0 +1,215 @@
+--=============================================================================
+-- todo.lua --- todo manager for SpaceVim
+-- Copyright (c) 2016-2022 Wang Shidong & Contributors
+-- Author: Wang Shidong < wsdjeg@outlook.com >
+-- URL: https://spacevim.org
+-- License: GPLv3
+--=============================================================================
+
+local M = {}
+
+local sys = require('spacevim.api').import('system')
+local reg = require('spacevim.api').import('vim.regex')
+
+local bufnr = -1
+local todo_jobid = -1
+local todos = {}
+local todo = {}
+local winnr = -1
+-- set the default labels for todo manager.
+local labels = { 'fixme', 'question', 'todo', 'idea' }
+local prefix = '@'
+
+local grep_default_exe, grep_default_opt, grep_default_ropt, grep_default_expr_opt, grep_default_fix_string_opt, grep_default_ignore_case, grep_default_smart_case =
+  require('spacevim.plugin.search').default_tool()
+
+local logger = require('spacevim.logger').derive('todo')
+
+local jobstart = vim.fn.jobstart
+
+local labels_partten = ''
+local labels_regex = ''
+
+local function empty(d) -- {{{
+  if type(d) == 'string' then
+    return d == ''
+  end
+end
+-- }}}
+
+local function stderr(id, data, event) -- {{{
+  if id ~= todo_jobid then
+    return
+  end
+  for _, d in ipairs(data) do
+    logger.info('stderr: ' .. d)
+  end
+end
+-- }}}
+local function stdout(id, data, event) -- {{{
+  if id ~= todo_jobid then
+    return
+  end
+  for _, d in ipairs(data) do
+    if not empty(d) then
+      logger.info('stdout:' .. d)
+      local f = vim.split(d, ':%d+:')[1]
+      local i, j = string.find(d, ':%d+:')
+      local line = string.sub(d, i + 1, j - 1)
+      local column = string.sub(vim.fn.matchstr(d, [[\(:\d\+\)\@<=:\d\+:]]), 1, -2)
+      local label = vim.fn.matchstr(d, labels_partten)
+      local title = vim.fn.get(vim.fn.split(d, label), 1, '')
+      table.insert(todos, {
+        file = f,
+        line = line,
+        column = column,
+        title = title,
+        label = label,
+      })
+    end
+  end
+end
+-- }}}
+local function open_todo() -- {{{
+  local t = todos[vim.fn.line('.')]
+  close_todo_win()
+  vim.cmd('e ' .. t.file)
+  vim.fn.cursor(t.line, t.column)
+  vim.cmd('noautocmd! normal! :')
+end
+-- }}}
+
+local function indexof(t, v) -- {{{
+  for i, x in ipairs(t) do
+    if x == v then
+      return i
+    end
+    return -1
+  end
+end
+-- }}}
+
+local function extend(t1, t2) -- {{{
+  for _, v in ipairs(t2) do
+    table.insert(t1, v)
+  end
+end
+-- }}}
+
+local function compare_todo(a, b) -- {{{
+  local i = indexof(labels, a)
+  local j = indexof(labels, b)
+  if i < j then
+    return true
+  else
+    return false
+  end
+end
+-- }}}
+
+function exit(id, data, event) -- {{{
+  if id ~= todo_jobid then
+    return
+  end
+  logger.info('todomanager job exit with:' .. data)
+  table.sort(todos, compare_todo)
+  local lw = 15
+  local fw = 50
+  local lines = {}
+  for _, v in ipairs(todos) do
+    table.insert(lines, 
+      v.label .. string.rep(' ', lw - #v.label) .. v.file .. string.rep(' ', fw - #v.file) .. v.title
+    )
+  end
+  local ma = vim.fn.getbufvar(bufnr, '&ma')
+  vim.fn.setbufvar(bufnr,'&ma', 1)
+  vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, lines)
+  vim.fn.setbufvar(bufnr,'&ma', ma)
+end
+-- }}}
+
+local function get_labels_regex() -- {{{
+  local sep = ''
+  if grep_default_exe == 'rg' then
+    sep = '|'
+  elseif grep_default_exe == 'grep' then
+    sep = '\\|'
+  else
+    sep = '|'
+  end
+  local rst = ''
+  local i = 1
+  for _, v in ipairs(labels) do
+    rst = rst .. prefix .. v .. [[\b]]
+    if i ~= #labels then
+      rst = rst .. sep
+    end
+    i = i + 1
+  end
+  return rst
+end
+-- }}}
+
+local function get_labels_partten() -- {{{
+  return reg.parser(get_labels_regex(), false)
+end
+-- }}}
+
+local function update_todo_content() -- {{{
+  if vim.g.spacevim_todo_labels ~= nil then
+    labels = vim.g.spacevim_todo_labels
+  end
+  if vim.g.spacevim_todo_prefix ~= nil then
+    prefix = vim.g.spacevim_todo_prefix
+  end
+  todos = {}
+  labels_regex = get_labels_regex()
+  labels_partten = get_labels_partten()
+  local argv = { grep_default_exe }
+  extend(argv, grep_default_opt)
+  extend(argv, { labels_regex })
+  if
+    sys.isWindows
+    and (grep_default_exe == 'rg' or grep_default_exe == 'ag' or grep_default_exe == 'pt')
+  then
+    extend(argv, { '.' })
+  elseif sys.isWindows and grep_default_exe == 'findstr' then
+    extend(argv, { '*.*' })
+  elseif not sys.isWindows and grep_default_exe == 'rg' then
+    extend(argv, { '.' })
+  end
+  extend(argv, grep_default_ropt)
+  logger.info('cmd:' .. vim.inspect(argv))
+  logger.info('   labels_partten: ' .. labels_partten)
+  todo_jobid = jobstart(argv, {
+    on_stdout = stdout,
+    on_stderr = stderr,
+    on_exit = exit,
+  })
+  logger.info('jobid:' .. todo_jobid)
+end
+-- }}}
+
+local function open_win() -- {{{
+  if bufnr ~= 0 and vim.fn.bufexists(bufnr) == 1 then
+    vim.cmd('bd ' .. bufnr)
+  end
+  vim.cmd('botright split __todo_manager__')
+  winnr = vim.fn.winnr('#')
+  local lines = vim.o.lines * 30 / 100
+  vim.cmd('resize ' .. lines)
+  vim.cmd([[
+  setlocal buftype=nofile bufhidden=wipe nobuflisted nolist noswapfile nowrap cursorline nospell nonu norelativenumber winfixheight nomodifiable
+  set filetype=SpaceVimTodoManager
+  ]])
+  bufnr = vim.fn.bufnr('%')
+  update_todo_content()
+end
+-- }}}
+
+function M.list() -- {{{
+  open_win()
+end
+-- }}}
+
+return M