過去に作った自動ロードプラグイン

auplugin.vim

if !exists('g:auplugin_disable')
  let g:auplugin_disable = 0
endif

command! -nargs=1 -complete=customlist,auplugin#_complete AuLoad call s:load_plugin(<q-args>)

function! auplugin#_complete(arglead, cmdline, cursorpos)"{{{
  let list = split(globpath(&runtimepath, 'auplugin/*'), '\n')
  let list += split(globpath(&runtimepath, 'bundle/*'), '\n')
  let rtp = map(split(&runtimepath, ','), 'expand(v:val)')
  call filter(list, 'index(rtp, v:val) < 0')
  call map(list, 'fnamemodify(v:val, ":p:~")')
  call map(list, 'substitute(v:val, "/$", "", "")')
  return filter(list, 'stridx(v:val, a:arglead) == 0')
endfunction"}}}

" TODO: Load plugin at filetype detected.
function! auplugin#ftplugin(path, filetype)
endfunction

function! auplugin#command(path, command, ...)
  let path = expand(a:path)
  if g:auplugin_disable || (get(a:000, 0, 1) == 0)
    call s:append_runtimepath(path)
    return
  else
    " TODO: ロード済みの場合は何もしないで終了する
    call s:remove_runtimepath(path)
  endif

  execute 'command! -nargs=*' a:command printf("call auplugin#_load_command('%s', '%s', <q-args>)", escape(path, "'"), a:command)
endfunction

function! auplugin#map(path, mode, mapping, ...)
  let path = expand(a:path)
  if g:auplugin_disable || (get(a:000, 0, 1) == 0)
    call s:append_runtimepath(path)
    return
  else
    call s:remove_runtimepath(path)
  endif

  let mode = a:mode
  if mode ==# ''
    let mode = 'nvo'
  endif

  " mode variable accepts array of n, v, o.
  for mode in split(mode, '\zs')
    if mapcheck(a:mapping, mode) ==# ''
      execute mode.'noremap <silent>' a:mapping printf(":<C-u>call auplugin#_load_map('%s', '%s', '%s')<CR>", mode, escape(path, "'"), a:mapping)
    endif
  endfor
endfunction

function! auplugin#textobj(path, mapping)
  let path = expand(a:path)
  if g:auplugin_disable
    call s:append_runtimepath(path)
    return
  else
    call s:remove_runtimepath(path)
  endif

  call auplugin#map(path, 'vo', a:mapping)

  " if mapcheck(a:mapping, 'v') ==# ''
  "   execute 'vnoremap' a:mapping printf(":<C-u>call auplugin#_load_map('%s', '%s', '%s')<CR>", 'v', escape(a:path, "'"), a:mapping)
  " endif
  " if mapcheck(a:mapping, 'o') ==# ''
  "   execute 'onoremap' a:mapping printf(":<C-u>call auplugin#_load_map('%s', '%s', '%s')<CR>", 'o', escape(a:path, "'"), a:mapping)
  " endif
endfunction

" TODO: Support unite sources.

function! auplugin#_load_map(mode, path, mapping)
  echo 'Load mapping:' a:mapping

  " Consume input keys.
  let input = s:consume_inputs()

  " Clear pre-load mapping.
  execute 'unmap' a:mapping

  " Load plugin.
  call s:load_plugin(a:path)

  if a:mode ==# 'v'
    call feedkeys('gv', 'n')
  elseif a:mode ==# 'o'
    " TODO: omap
    " v:prevcount?
    " Cancel waiting operator mode.
    " call feedkeys("\<C-\\>\<C-n>", 'n')
    call feedkeys("\<Esc>", 'n')
    call feedkeys(v:operator, 'm')
  endif

  let mapping = substitute(a:mapping, '<Plug>', "\<Plug>", 'g')
  call feedkeys(mapping . input, 'm')
endfunction

function! auplugin#_load_command(path, command, args)
  echo 'Load command:' a:command

  " Clear pre-load command.
  execute 'delcommand' a:command

  " Load plugin.
  call s:load_plugin(a:path)

  execute a:command a:args
endfunction

function! s:load_plugin(path)
  let path = expand(a:path)
  let path = substitute(path, '/$', '', '')
  call s:append_runtimepath(path)
  call s:source_plugin(path)
endfunction

function! s:append_runtimepath(path)
  " TODO: g:auplugin_disable = 1 の時に起動時に連続してrtputil#appendを呼び出すと遅い。
  if exists('*rtputil#append')
    call rtputil#append(a:path)
  else
    let path = fnameescape(expand(a:path))
    execute 'set runtimepath^=' . path
    execute 'set runtimepath+=' . path . '/after'
  endif
endfunction

function! s:remove_runtimepath(path)
  let r = &runtimepath
  let path = fnameescape(expand(a:path))
  execute 'set runtimepath-=' . path
  execute 'set runtimepath-=' . path . '/after'

  " If can't remove, retry with expanded runtimepath.
  if r ==# &runtimepath
    let list = map(split(&runtimepath, ','), 'expand(v:val)') " Substitute path separator.
    call filter(list, 'stridx(v:val, a:path) != 0') " Remove path and path/after.
    let &runtimepath = join(list, ',')
  endif
endfunction

" function! s:rtp_rm(dir)
"   execute 'set rtp-='.fnameescape(neobundle#util#expand(a:dir))
"   execute 'set rtp-='.fnameescape(neobundle#util#expand(a:dir.'/after'))
" endfunction
" 
" function! s:rtp_add(dir) abort
"   execute 'set rtp^='.fnameescape(neobundle#util#expand(a:dir))
"   execute 'set rtp+='.fnameescape(neobundle#util#expand(a:dir.'/after'))
" endfunction

function! s:source_plugin(path)
  let files =  split(globpath(a:path, 'ftdetect/**/*.vim'), '\n')
  let files += split(globpath(a:path, 'after/ftdetect/**/*.vim'), '\n')
  let files += split(globpath(a:path, 'plugin/**/*.vim'), '\n')
  let files += split(globpath(a:path, 'after/plugin/**/*.vim'), '\n')
  for file in files
    source `=file`
  endfor
endfunction

function! s:consume_inputs()
  let input = ''
  let termstr = "<M-_>"
  call feedkeys(termstr, 'n')

  while 1
    let input .= nr2char(getchar())

    let idx = stridx(input, termstr)
    if idx >= 1
      let input = input[: idx - 1]
      break
    elseif idx == 0
      let input = ''
      break
    endif
  endwhile

  return input
endfunction