1" Vim filetype plugin
2" Language:	git commit file
3" Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
4" Last Change:	2010 May 21
5
6" Only do this when not done yet for this buffer
7if (exists("b:did_ftplugin"))
8  finish
9endif
10
11runtime! ftplugin/git.vim
12let b:did_ftplugin = 1
13
14if &textwidth == 0
15  " make sure that log messages play nice with git-log on standard terminals
16  setlocal textwidth=72
17  if !exists("b:undo_ftplugin")
18    let b:undo_ftplugin = ""
19  endif
20  let b:undo_ftplugin = b:undo_ftplugin . "|setl tw<"
21endif
22
23if exists("g:no_gitcommit_commands") || v:version < 700
24  finish
25endif
26
27if !exists("b:git_dir")
28  let b:git_dir = expand("%:p:h")
29endif
30
31" Automatically diffing can be done with:
32"   autocmd FileType gitcommit DiffGitCached | wincmd p
33command! -bang -bar -buffer -complete=custom,s:diffcomplete -nargs=* DiffGitCached :call s:gitdiffcached(<bang>0,b:git_dir,<f-args>)
34
35function! s:diffcomplete(A,L,P)
36  let args = ""
37  if a:P <= match(a:L." -- "," -- ")+3
38    let args = args . "-p\n--stat\n--shortstat\n--summary\n--patch-with-stat\n--no-renames\n-B\n-M\n-C\n"
39  end
40  if exists("b:git_dir") && a:A !~ '^-'
41    let tree = fnamemodify(b:git_dir,':h')
42    if strpart(getcwd(),0,strlen(tree)) == tree
43      let args = args."\n".system("git diff --cached --name-only")
44    endif
45  endif
46  return args
47endfunction
48
49function! s:gitdiffcached(bang,gitdir,...)
50  let tree = fnamemodify(a:gitdir,':h')
51  let name = tempname()
52  let git = "git"
53  if strpart(getcwd(),0,strlen(tree)) != tree
54    let git .= " --git-dir=".(exists("*shellescape") ? shellescape(a:gitdir) : '"'.a:gitdir.'"')
55  endif
56  if a:0
57    let extra = join(map(copy(a:000),exists("*shellescape") ? 'shellescape(v:val)' : "'\"'.v:val.'\"'"))
58  else
59    let extra = "-p --stat=".&columns
60  endif
61  call system(git." diff --cached --no-color ".extra." > ".(exists("*shellescape") ? shellescape(name) : name))
62  exe "pedit ".(exists("*fnameescape") ? fnameescape(name) : name)
63  wincmd P
64  let b:git_dir = a:gitdir
65  command! -bang -bar -buffer -complete=custom,s:diffcomplete -nargs=* DiffGitCached :call s:gitdiffcached(<bang>0,b:git_dir,<f-args>)
66  nnoremap <silent> q :q<CR>
67  setlocal buftype=nowrite nobuflisted noswapfile nomodifiable filetype=git
68endfunction
69