gundo.vim/autoload/gundo.vim
Göran Gustafsson aa7e5f10bc Added statusline settings. Fixed indentation
I want to use a custom statusline for both Gundo splits so i added two
variables for it setting it. If the variables are empty Gundo works like
normal but if there is something in them the text get used. Example:
  let g:gundo_preview_statusline = "Gundo Preview"
  let g:gundo_tree_statusline = "Gundo Tree"

The indentation was off in a few places so i fixed it. The real tabs was
removed and replaced with spaces like the rest of the source file.
2012-02-05 09:33:52 +01:00

450 lines
12 KiB
VimL

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