470 lines
13 KiB
VimL
Executable File
470 lines
13 KiB
VimL
Executable File
" ============================================================================
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" File: gundo.vim
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" Description: vim global plugin to visualize your undo tree
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" Maintainer: Steve Losh <steve@stevelosh.com>
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" License: GPLv2+ -- look it up.
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" Notes: Much of this code was thiefed from Mercurial, and the rest was
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" heavily inspired by scratch.vim and histwin.vim.
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"
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" ============================================================================
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"{{{ Init
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if v:version < '703'"{{{
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function! s:GundoDidNotLoad()
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echohl WarningMsg|echomsg "Gundo unavailable: requires Vim 7.3+"|echohl None
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endfunction
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command! -nargs=0 GundoToggle call s:GundoDidNotLoad()
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finish
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endif"}}}
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if !exists('g:gundo_width')"{{{
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let g:gundo_width = 45
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endif"}}}
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if !exists('g:gundo_preview_height')"{{{
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let g:gundo_preview_height = 15
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endif"}}}
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if !exists('g:gundo_preview_bottom')"{{{
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let g:gundo_preview_bottom = 0
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endif"}}}
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if !exists('g:gundo_right')"{{{
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let g:gundo_right = 0
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endif"}}}
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if !exists('g:gundo_help')"{{{
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let g:gundo_help = 1
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endif"}}}
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if !exists("g:gundo_map_move_older")"{{{
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let g:gundo_map_move_older = 'j'
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endif"}}}
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if !exists("g:gundo_map_move_newer")"{{{
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let g:gundo_map_move_newer = 'k'
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endif"}}}
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if !exists("g:gundo_close_on_revert")"{{{
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let g:gundo_close_on_revert = 0
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endif"}}}
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if !exists("g:gundo_prefer_python3")"{{{
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let g:gundo_prefer_python3 = 0
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endif"}}}
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if !exists("g:gundo_auto_preview")"{{{
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let g:gundo_auto_preview = 1
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endif"}}}
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let s:has_supported_python = 0
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if g:gundo_prefer_python3 && has('python3')"{{{
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let s:has_supported_python = 2
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elseif has('python')"
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let s:has_supported_python = 1
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endif
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if !s:has_supported_python
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function! s:GundoDidNotLoad()
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echohl WarningMsg|echomsg "Gundo requires Vim to be compiled with Python 2.4+"|echohl None
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endfunction
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command! -nargs=0 GundoToggle call s:GundoDidNotLoad()
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finish
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endif"}}}
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let s:plugin_path = escape(expand('<sfile>:p:h'), '\')
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"}}}
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"{{{ Gundo utility functions
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function! s:GundoGetTargetState()"{{{
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let target_line = matchstr(getline("."), '\v\[[0-9]+\]')
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return matchstr(target_line, '\v[0-9]+')
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endfunction"}}}
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function! s:GundoGoToWindowForBufferName(name)"{{{
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if bufwinnr(bufnr(a:name)) != -1
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exe bufwinnr(bufnr(a:name)) . "wincmd w"
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return 1
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else
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return 0
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endif
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endfunction"}}}
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function! s:GundoIsVisible()"{{{
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if bufwinnr(bufnr("__Gundo__")) != -1 || bufwinnr(bufnr("__Gundo_Preview__")) != -1
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return 1
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else
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return 0
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endif
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endfunction"}}}
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function! s:GundoInlineHelpLength()"{{{
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if g:gundo_help
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return 6
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else
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return 0
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endif
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endfunction"}}}
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"}}}
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"{{{ Gundo buffer settings
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function! s:GundoMapGraph()"{{{
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exec 'nnoremap <script> <silent> <buffer> ' . g:gundo_map_move_older . " :call <sid>GundoMove(1)<CR>"
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exec 'nnoremap <script> <silent> <buffer> ' . g:gundo_map_move_newer . " :call <sid>GundoMove(-1)<CR>"
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nnoremap <script> <silent> <buffer> <CR> :call <sid>GundoRevert()<CR>
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nnoremap <script> <silent> <buffer> o :call <sid>GundoRevert()<CR>
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nnoremap <script> <silent> <buffer> <down> :call <sid>GundoMove(1)<CR>
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nnoremap <script> <silent> <buffer> <up> :call <sid>GundoMove(-1)<CR>
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nnoremap <script> <silent> <buffer> gg gg:call <sid>GundoMove(1)<CR>
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nnoremap <script> <silent> <buffer> P :call <sid>GundoPlayTo()<CR>
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nnoremap <script> <silent> <buffer> p :call <sid>GundoRenderChangePreview()<CR>
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nnoremap <script> <silent> <buffer> r :call <sid>GundoRenderPreview()<CR>
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nnoremap <script> <silent> <buffer> q :call <sid>GundoClose()<CR>
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cabbrev <script> <silent> <buffer> q call <sid>GundoClose()
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cabbrev <script> <silent> <buffer> quit call <sid>GundoClose()
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nnoremap <script> <silent> <buffer> <2-LeftMouse> :call <sid>GundoMouseDoubleClick()<CR>
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endfunction"}}}
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function! s:GundoMapPreview()"{{{
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nnoremap <script> <silent> <buffer> q :call <sid>GundoClose()<CR>
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cabbrev <script> <silent> <buffer> q call <sid>GundoClose()
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cabbrev <script> <silent> <buffer> quit call <sid>GundoClose()
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endfunction"}}}
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function! s:GundoSettingsGraph()"{{{
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setlocal buftype=nofile
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setlocal bufhidden=hide
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setlocal noswapfile
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setlocal nobuflisted
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setlocal nomodifiable
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setlocal filetype=gundo
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setlocal nolist
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setlocal nonumber
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setlocal norelativenumber
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setlocal nowrap
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call s:GundoSyntaxGraph()
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call s:GundoMapGraph()
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endfunction"}}}
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function! s:GundoSettingsPreview()"{{{
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setlocal buftype=nofile
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setlocal bufhidden=hide
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setlocal noswapfile
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setlocal nobuflisted
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setlocal nomodifiable
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setlocal filetype=diff
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setlocal nonumber
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setlocal norelativenumber
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setlocal nowrap
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setlocal foldlevel=20
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setlocal foldmethod=diff
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call s:GundoMapPreview()
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endfunction"}}}
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function! s:GundoSyntaxGraph()"{{{
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let b:current_syntax = 'gundo'
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syn match GundoCurrentLocation '@'
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syn match GundoHelp '\v^".*$'
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syn match GundoNumberField '\v\[[0-9]+\]'
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syn match GundoNumber '\v[0-9]+' contained containedin=GundoNumberField
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hi def link GundoCurrentLocation Keyword
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hi def link GundoHelp Comment
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hi def link GundoNumberField Comment
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hi def link GundoNumber Identifier
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endfunction"}}}
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"}}}
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"{{{ Gundo buffer/window management
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function! s:GundoResizeBuffers(backto)"{{{
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call s:GundoGoToWindowForBufferName('__Gundo__')
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exe "vertical resize " . g:gundo_width
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call s:GundoGoToWindowForBufferName('__Gundo_Preview__')
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exe "resize " . g:gundo_preview_height
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exe a:backto . "wincmd w"
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endfunction"}}}
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function! s:GundoOpenGraph()"{{{
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let existing_gundo_buffer = bufnr("__Gundo__")
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if existing_gundo_buffer == -1
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call s:GundoGoToWindowForBufferName('__Gundo_Preview__')
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exe "new __Gundo__"
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if g:gundo_preview_bottom
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if g:gundo_right
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wincmd L
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else
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wincmd H
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endif
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endif
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call s:GundoResizeBuffers(winnr())
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else
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let existing_gundo_window = bufwinnr(existing_gundo_buffer)
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if existing_gundo_window != -1
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if winnr() != existing_gundo_window
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exe existing_gundo_window . "wincmd w"
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endif
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else
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call s:GundoGoToWindowForBufferName('__Gundo_Preview__')
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if g:gundo_preview_bottom
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if g:gundo_right
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exe "botright vsplit +buffer" . existing_gundo_buffer
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else
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exe "topleft vsplit +buffer" . existing_gundo_buffer
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endif
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else
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exe "split +buffer" . existing_gundo_buffer
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endif
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call s:GundoResizeBuffers(winnr())
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endif
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endif
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if exists("g:gundo_tree_statusline")
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let &l:statusline = g:gundo_tree_statusline
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endif
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endfunction"}}}
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function! s:GundoOpenPreview()"{{{
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let existing_preview_buffer = bufnr("__Gundo_Preview__")
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if existing_preview_buffer == -1
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if g:gundo_preview_bottom
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exe "botright new __Gundo_Preview__"
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else
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if g:gundo_right
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exe "botright vnew __Gundo_Preview__"
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else
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exe "topleft vnew __Gundo_Preview__"
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endif
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endif
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else
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let existing_preview_window = bufwinnr(existing_preview_buffer)
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if existing_preview_window != -1
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if winnr() != existing_preview_window
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exe existing_preview_window . "wincmd w"
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endif
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else
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if g:gundo_preview_bottom
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exe "botright split +buffer" . existing_preview_buffer
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else
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if g:gundo_right
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exe "botright vsplit +buffer" . existing_preview_buffer
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else
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exe "topleft vsplit +buffer" . existing_preview_buffer
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endif
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endif
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endif
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endif
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if exists("g:gundo_preview_statusline")
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let &l:statusline = g:gundo_preview_statusline
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endif
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endfunction"}}}
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function! s:GundoClose()"{{{
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if s:GundoGoToWindowForBufferName('__Gundo__')
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quit
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endif
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if s:GundoGoToWindowForBufferName('__Gundo_Preview__')
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quit
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endif
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exe bufwinnr(g:gundo_target_n) . "wincmd w"
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endfunction"}}}
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function! s:GundoOpen()"{{{
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if !exists('g:gundo_py_loaded')
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if s:has_supported_python == 2 && g:gundo_prefer_python3
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exe 'py3file ' . s:plugin_path . '/gundo.py'
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python3 initPythonModule()
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else
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exe 'pyfile ' . s:plugin_path . '/gundo.py'
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python initPythonModule()
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endif
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if !s:has_supported_python
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function! s:GundoDidNotLoad()
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echohl WarningMsg|echomsg "Gundo unavailable: requires Vim 7.3+"|echohl None
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endfunction
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command! -nargs=0 GundoToggle call s:GundoDidNotLoad()
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call s:GundoDidNotLoad()
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return
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endif"
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let g:gundo_py_loaded = 1
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endif
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" Save `splitbelow` value and set it to default to avoid problems with
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" positioning new windows.
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let saved_splitbelow = &splitbelow
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let &splitbelow = 0
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call s:GundoOpenPreview()
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exe bufwinnr(g:gundo_target_n) . "wincmd w"
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call s:GundoRenderGraph()
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call s:GundoRenderPreview()
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" Restore `splitbelow` value.
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let &splitbelow = saved_splitbelow
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endfunction"}}}
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function! s:GundoToggle()"{{{
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if s:GundoIsVisible()
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call s:GundoClose()
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else
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let g:gundo_target_n = bufnr('')
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let g:gundo_target_f = @%
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call s:GundoOpen()
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endif
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endfunction"}}}
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function! s:GundoShow()"{{{
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if !s:GundoIsVisible()
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let g:gundo_target_n = bufnr('')
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let g:gundo_target_f = @%
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call s:GundoOpen()
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endif
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endfunction"}}}
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function! s:GundoHide()"{{{
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if s:GundoIsVisible()
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call s:GundoClose()
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endif
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endfunction"}}}
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"}}}
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"{{{ Gundo mouse handling
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function! s:GundoMouseDoubleClick()"{{{
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let start_line = getline('.')
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if stridx(start_line, '[') == -1
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return
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else
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call s:GundoRevert()
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endif
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endfunction"}}}
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"}}}
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"{{{ Gundo movement
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function! s:GundoMove(direction) range"{{{
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let start_line = getline('.')
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if v:count1 == 0
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let move_count = 1
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else
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let move_count = v:count1
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endif
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let distance = 2 * move_count
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" If we're in between two nodes we move by one less to get back on track.
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if stridx(start_line, '[') == -1
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let distance = distance - 1
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endif
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let target_n = line('.') + (distance * a:direction)
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" Bound the movement to the graph.
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if target_n <= s:GundoInlineHelpLength() - 1
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call cursor(s:GundoInlineHelpLength(), 0)
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else
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call cursor(target_n, 0)
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endif
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let line = getline('.')
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" Move to the node, whether it's an @ or an o
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let idx1 = stridx(line, '@')
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let idx2 = stridx(line, 'o')
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if idx1 != -1
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call cursor(0, idx1 + 1)
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else
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call cursor(0, idx2 + 1)
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endif
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if g:gundo_auto_preview == 1
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call s:GundoRenderPreview()
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endif
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endfunction"}}}
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"}}}
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"{{{ Gundo rendering
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function! s:GundoRenderGraph()"{{{
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if s:has_supported_python == 2 && g:gundo_prefer_python3
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python3 GundoRenderGraph()
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else
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python GundoRenderGraph()
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endif
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endfunction"}}}
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function! s:GundoRenderPreview()"{{{
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if s:has_supported_python == 2 && g:gundo_prefer_python3
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python3 GundoRenderPreview()
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else
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python GundoRenderPreview()
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endif
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endfunction"}}}
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function! s:GundoRenderChangePreview()"{{{
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if s:has_supported_python == 2 && g:gundo_prefer_python3
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python3 GundoRenderChangePreview()
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else
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python GundoRenderChangePreview()
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endif
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endfunction"}}}
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"}}}
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"{{{ Gundo undo/redo
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function! s:GundoRevert()"{{{
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if s:has_supported_python == 2 && g:gundo_prefer_python3
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python3 GundoRevert()
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else
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python GundoRevert()
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endif
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endfunction"}}}
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function! s:GundoPlayTo()"{{{
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if s:has_supported_python == 2 && g:gundo_prefer_python3
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python3 GundoPlayTo()
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else
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python GundoPlayTo()
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endif
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endfunction"}}}
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"}}}
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"{{{ Misc
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function! gundo#GundoToggle()"{{{
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call s:GundoToggle()
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endfunction"}}}
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function! gundo#GundoShow()"{{{
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call s:GundoShow()
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endfunction"}}}
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function! gundo#GundoHide()"{{{
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call s:GundoHide()
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endfunction"}}}
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function! gundo#GundoRenderGraph()"{{{
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call s:GundoRenderGraph()
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endfunction"}}}
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augroup GundoAug
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autocmd!
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autocmd BufNewFile __Gundo__ call s:GundoSettingsGraph()
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autocmd BufNewFile __Gundo_Preview__ call s:GundoSettingsPreview()
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augroup END
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"}}}
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