[plugins] fugitive

1 files changed, 2670 insertions, 0 deletions

diff --git a/plugin/fugitive.vim b/plugin/fugitive.vim
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+" fugitive.vim - A Git wrapper so awesome, it should be illegal
+" Maintainer:   Tim Pope <http://tpo.pe/>
+" Version:      2.1
+" GetLatestVimScripts: 2975 1 :AutoInstall: fugitive.vim
+
+if exists('g:loaded_fugitive') || &cp
+  finish
+endif
+let g:loaded_fugitive = 1
+
+if !exists('g:fugitive_git_executable')
+  let g:fugitive_git_executable = 'git'
+endif
+
+" Section: Utility
+
+function! s:function(name) abort
+  return function(substitute(a:name,'^s:',matchstr(expand('<sfile>'), '<SNR>\d\+_'),''))
+endfunction
+
+function! s:sub(str,pat,rep) abort
+  return substitute(a:str,'\v\C'.a:pat,a:rep,'')
+endfunction
+
+function! s:gsub(str,pat,rep) abort
+  return substitute(a:str,'\v\C'.a:pat,a:rep,'g')
+endfunction
+
+function! s:winshell() abort
+  return &shell =~? 'cmd' || exists('+shellslash') && !&shellslash
+endfunction
+
+function! s:shellesc(arg) abort
+  if a:arg =~ '^[A-Za-z0-9_/.-]\+$'
+    return a:arg
+  elseif s:winshell()
+    return '"'.s:gsub(s:gsub(a:arg, '"', '""'), '\%', '"%"').'"'
+  else
+    return shellescape(a:arg)
+  endif
+endfunction
+
+function! s:fnameescape(file) abort
+  if exists('*fnameescape')
+    return fnameescape(a:file)
+  else
+    return escape(a:file," \t\n*?[{`$\\%#'\"|!<")
+  endif
+endfunction
+
+function! s:throw(string) abort
+  let v:errmsg = 'fugitive: '.a:string
+  throw v:errmsg
+endfunction
+
+function! s:warn(str) abort
+  echohl WarningMsg
+  echomsg a:str
+  echohl None
+  let v:warningmsg = a:str
+endfunction
+
+function! s:shellslash(path) abort
+  if s:winshell()
+    return s:gsub(a:path,'\\','/')
+  else
+    return a:path
+  endif
+endfunction
+
+let s:git_versions = {}
+
+function! fugitive#git_version(...) abort
+  if !has_key(s:git_versions, g:fugitive_git_executable)
+    let s:git_versions[g:fugitive_git_executable] = matchstr(system(g:fugitive_git_executable.' --version'), "\\S\\+\n")
+  endif
+  return s:git_versions[g:fugitive_git_executable]
+endfunction
+
+function! s:recall() abort
+  let rev = s:sub(s:buffer().rev(), '^/', '')
+  if rev ==# ':'
+    return matchstr(getline('.'),'^#\t\%([[:alpha:] ]\+: *\)\=\zs.\{-\}\ze\%( ([^()[:digit:]]\+)\)\=$\|^\d\{6} \x\{40\} \d\t\zs.*')
+  elseif s:buffer().type('tree')
+    let file = matchstr(getline('.'), '\t\zs.*')
+    if empty(file) && line('.') > 2
+      let file = s:sub(getline('.'), '/$', '')
+    endif
+    if !empty(file) && rev !~# ':$'
+      return rev . '/' . file
+    else
+      return rev . file
+    endif
+  endif
+  return rev
+endfunction
+
+function! s:add_methods(namespace, method_names) abort
+  for name in a:method_names
+    let s:{a:namespace}_prototype[name] = s:function('s:'.a:namespace.'_'.name)
+  endfor
+endfunction
+
+let s:commands = []
+function! s:command(definition) abort
+  let s:commands += [a:definition]
+endfunction
+
+function! s:define_commands() abort
+  for command in s:commands
+    exe 'command! -buffer '.command
+  endfor
+endfunction
+
+augroup fugitive_utility
+  autocmd!
+  autocmd User Fugitive call s:define_commands()
+augroup END
+
+let s:abstract_prototype = {}
+
+" Section: Initialization
+
+function! fugitive#is_git_dir(path) abort
+  let path = s:sub(a:path, '[\/]$', '') . '/'
+  return isdirectory(path.'objects') && isdirectory(path.'refs') && getfsize(path.'HEAD') > 10
+endfunction
+
+function! fugitive#extract_git_dir(path) abort
+  if s:shellslash(a:path) =~# '^fugitive://.*//'
+    return matchstr(s:shellslash(a:path), '\C^fugitive://\zs.\{-\}\ze//')
+  endif
+  let root = s:shellslash(simplify(fnamemodify(a:path, ':p:s?[\/]$??')))
+  let previous = ""
+  while root !=# previous
+    if root =~# '\v^//%([^/]+/?)?$'
+      " This is for accessing network shares from Cygwin Vim. There won't be
+      " any git directory called //.git or //serverName/.git so let's avoid
+      " checking for them since such checks are extremely slow.
+      break
+    endif
+    if index(split($GIT_CEILING_DIRECTORIES, ':'), root) >= 0
+      break
+    endif
+    if root ==# $GIT_WORK_TREE && fugitive#is_git_dir($GIT_DIR)
+      return $GIT_DIR
+    endif
+    let dir = s:sub(root, '[\/]$', '') . '/.git'
+    let type = getftype(dir)
+    if type ==# 'dir' && fugitive#is_git_dir(dir)
+      return dir
+    elseif type ==# 'link' && fugitive#is_git_dir(dir)
+      return resolve(dir)
+    elseif type !=# '' && filereadable(dir)
+      let line = get(readfile(dir, '', 1), 0, '')
+      if line =~# '^gitdir: \.' && fugitive#is_git_dir(root.'/'.line[8:-1])
+        return simplify(root.'/'.line[8:-1])
+      elseif line =~# '^gitdir: ' && fugitive#is_git_dir(line[8:-1])
+        return line[8:-1]
+      endif
+    elseif fugitive#is_git_dir(root)
+      return root
+    endif
+    let previous = root
+    let root = fnamemodify(root, ':h')
+  endwhile
+  return ''
+endfunction
+
+function! fugitive#detect(path) abort
+  if exists('b:git_dir') && (b:git_dir ==# '' || b:git_dir =~# '/$')
+    unlet b:git_dir
+  endif
+  if !exists('b:git_dir')
+    let dir = fugitive#extract_git_dir(a:path)
+    if dir !=# ''
+      let b:git_dir = dir
+    endif
+  endif
+  if exists('b:git_dir')
+    silent doautocmd User FugitiveBoot
+    cnoremap <buffer> <expr> <C-R><C-G> fnameescape(<SID>recall())
+    nnoremap <buffer> <silent> y<C-G> :call setreg(v:register, <SID>recall())<CR>
+    let buffer = fugitive#buffer()
+    if expand('%:p') =~# '//'
+      call buffer.setvar('&path', s:sub(buffer.getvar('&path'), '^\.%(,|$)', ''))
+    endif
+    if stridx(buffer.getvar('&tags'), escape(b:git_dir.'/tags', ', ')) == -1
+      call buffer.setvar('&tags', escape(b:git_dir.'/tags', ', ').','.buffer.getvar('&tags'))
+      if &filetype !=# ''
+        call buffer.setvar('&tags', escape(b:git_dir.'/'.&filetype.'.tags', ', ').','.buffer.getvar('&tags'))
+      endif
+    endif
+    silent doautocmd User Fugitive
+  endif
+endfunction
+
+augroup fugitive
+  autocmd!
+  autocmd BufNewFile,BufReadPost * call fugitive#detect(expand('<amatch>:p'))
+  autocmd FileType           netrw call fugitive#detect(expand('%:p'))
+  autocmd User NERDTreeInit,NERDTreeNewRoot call fugitive#detect(b:NERDTreeRoot.path.str())
+  autocmd VimEnter * if expand('<amatch>')==''|call fugitive#detect(getcwd())|endif
+  autocmd CmdWinEnter * call fugitive#detect(expand('#:p'))
+  autocmd BufWinLeave * execute getwinvar(+bufwinnr(+expand('<abuf>')), 'fugitive_leave')
+augroup END
+
+" Section: Repository
+
+let s:repo_prototype = {}
+let s:repos = {}
+
+function! s:repo(...) abort
+  let dir = a:0 ? a:1 : (exists('b:git_dir') && b:git_dir !=# '' ? b:git_dir : fugitive#extract_git_dir(expand('%:p')))
+  if dir !=# ''
+    if has_key(s:repos, dir)
+      let repo = get(s:repos, dir)
+    else
+      let repo = {'git_dir': dir}
+      let s:repos[dir] = repo
+    endif
+    return extend(extend(repo, s:repo_prototype, 'keep'), s:abstract_prototype, 'keep')
+  endif
+  call s:throw('not a git repository: '.expand('%:p'))
+endfunction
+
+function! fugitive#repo(...) abort
+  return call('s:repo', a:000)
+endfunction
+
+function! s:repo_dir(...) dict abort
+  return join([self.git_dir]+a:000,'/')
+endfunction
+
+function! s:repo_configured_tree() dict abort
+  if !has_key(self,'_tree')
+    let self._tree = ''
+    if filereadable(self.dir('config'))
+      let config = readfile(self.dir('config'),'',10)
+      call filter(config,'v:val =~# "^\\s*worktree *="')
+      if len(config) == 1
+        let self._tree = matchstr(config[0], '= *\zs.*')
+      endif
+    endif
+  endif
+  if self._tree =~# '^\.'
+    return simplify(self.dir(self._tree))
+  else
+    return self._tree
+  endif
+endfunction
+
+function! s:repo_tree(...) dict abort
+  if self.dir() =~# '/\.git$'
+    let dir = self.dir()[0:-6]
+  else
+    let dir = self.configured_tree()
+  endif
+  if dir ==# ''
+    call s:throw('no work tree')
+  else
+    return join([dir]+a:000,'/')
+  endif
+endfunction
+
+function! s:repo_bare() dict abort
+  if self.dir() =~# '/\.git$'
+    return 0
+  else
+    return self.configured_tree() ==# ''
+  endif
+endfunction
+
+function! s:repo_translate(spec) dict abort
+  if a:spec ==# '.' || a:spec ==# '/.'
+    return self.bare() ? self.dir() : self.tree()
+  elseif a:spec =~# '^/\=\.git$' && self.bare()
+    return self.dir()
+  elseif a:spec =~# '^/\=\.git/'
+    return self.dir(s:sub(a:spec, '^/=\.git/', ''))
+  elseif a:spec =~# '^/'
+    return self.tree().a:spec
+  elseif a:spec =~# '^:[0-3]:'
+    return 'fugitive://'.self.dir().'//'.a:spec[1].'/'.a:spec[3:-1]
+  elseif a:spec ==# ':'
+    if $GIT_INDEX_FILE =~# '/[^/]*index[^/]*\.lock$' && fnamemodify($GIT_INDEX_FILE,':p')[0:strlen(self.dir())] ==# self.dir('') && filereadable($GIT_INDEX_FILE)
+      return fnamemodify($GIT_INDEX_FILE,':p')
+    else
+      return self.dir('index')
+    endif
+  elseif a:spec =~# '^:/'
+    let ref = self.rev_parse(matchstr(a:spec,'.[^:]*'))
+    return 'fugitive://'.self.dir().'//'.ref
+  elseif a:spec =~# '^:'
+    return 'fugitive://'.self.dir().'//0/'.a:spec[1:-1]
+  elseif a:spec =~# 'HEAD\|^refs/' && a:spec !~ ':' && filereadable(self.dir(a:spec))
+    return self.dir(a:spec)
+  elseif filereadable(self.dir('refs/'.a:spec))
+    return self.dir('refs/'.a:spec)
+  elseif filereadable(self.dir('refs/tags/'.a:spec))
+    return self.dir('refs/tags/'.a:spec)
+  elseif filereadable(self.dir('refs/heads/'.a:spec))
+    return self.dir('refs/heads/'.a:spec)
+  elseif filereadable(self.dir('refs/remotes/'.a:spec))
+    return self.dir('refs/remotes/'.a:spec)
+  elseif filereadable(self.dir('refs/remotes/'.a:spec.'/HEAD'))
+    return self.dir('refs/remotes/'.a:spec,'/HEAD')
+  else
+    try
+      let ref = self.rev_parse(matchstr(a:spec,'[^:]*'))
+      let path = s:sub(matchstr(a:spec,':.*'),'^:','/')
+      return 'fugitive://'.self.dir().'//'.ref.path
+    catch /^fugitive:/
+      return self.tree(a:spec)
+    endtry
+  endif
+endfunction
+
+function! s:repo_head(...) dict abort
+    let head = s:repo().head_ref()
+
+    if head =~# '^ref: '
+      let branch = s:sub(head,'^ref: %(refs/%(heads/|remotes/|tags/)=)=','')
+    elseif head =~# '^\x\{40\}$'
+      " truncate hash to a:1 characters if we're in detached head mode
+      let len = a:0 ? a:1 : 0
+      let branch = len ? head[0:len-1] : ''
+    else
+      return ''
+    endif
+
+    return branch
+endfunction
+
+call s:add_methods('repo',['dir','configured_tree','tree','bare','translate','head'])
+
+function! s:repo_git_command(...) dict abort
+  let git = g:fugitive_git_executable . ' --git-dir='.s:shellesc(self.git_dir)
+  return git.join(map(copy(a:000),'" ".s:shellesc(v:val)'),'')
+endfunction
+
+function! s:repo_git_chomp(...) dict abort
+  return s:sub(system(call(self.git_command,a:000,self)),'\n$','')
+endfunction
+
+function! s:repo_git_chomp_in_tree(...) dict abort
+  let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd ' : 'cd '
+  let dir = getcwd()
+  try
+    execute cd.'`=s:repo().tree()`'
+    return call(s:repo().git_chomp, a:000, s:repo())
+  finally
+    execute cd.'`=dir`'
+  endtry
+endfunction
+
+function! s:repo_rev_parse(rev) dict abort
+  let hash = self.git_chomp('rev-parse','--verify',a:rev)
+  if hash =~ '\<\x\{40\}$'
+    return matchstr(hash,'\<\x\{40\}$')
+  endif
+  call s:throw('rev-parse '.a:rev.': '.hash)
+endfunction
+
+call s:add_methods('repo',['git_command','git_chomp','git_chomp_in_tree','rev_parse'])
+
+function! s:repo_dirglob(base) dict abort
+  let base = s:sub(a:base,'^/','')
+  let matches = split(glob(self.tree(s:gsub(base,'/','*&').'*/')),"\n")
+  call map(matches,'v:val[ strlen(self.tree())+(a:base !~ "^/") : -1 ]')
+  return matches
+endfunction
+
+function! s:repo_superglob(base) dict abort
+  if a:base =~# '^/' || a:base !~# ':'
+    let results = []
+    if a:base !~# '^/'
+      let heads = ["HEAD","ORIG_HEAD","FETCH_HEAD","MERGE_HEAD"]
+      let heads += sort(split(s:repo().git_chomp("rev-parse","--symbolic","--branches","--tags","--remotes"),"\n"))
+      call filter(heads,'v:val[ 0 : strlen(a:base)-1 ] ==# a:base')
+      let results += heads
+    endif
+    if !self.bare()
+      let base = s:sub(a:base,'^/','')
+      let matches = split(glob(self.tree(s:gsub(base,'/','*&').'*')),"\n")
+      call map(matches,'s:shellslash(v:val)')
+      call map(matches,'v:val !~ "/$" && isdirectory(v:val) ? v:val."/" : v:val')
+      call map(matches,'v:val[ strlen(self.tree())+(a:base !~ "^/") : -1 ]')
+      let results += matches
+    endif
+    return results
+
+  elseif a:base =~# '^:'
+    let entries = split(self.git_chomp('ls-files','--stage'),"\n")
+    call map(entries,'s:sub(v:val,".*(\\d)\\t(.*)",":\\1:\\2")')
+    if a:base !~# '^:[0-3]\%(:\|$\)'
+      call filter(entries,'v:val[1] == "0"')
+      call map(entries,'v:val[2:-1]')
+    endif
+    call filter(entries,'v:val[ 0 : strlen(a:base)-1 ] ==# a:base')
+    return entries
+
+  else
+    let tree = matchstr(a:base,'.*[:/]')
+    let entries = split(self.git_chomp('ls-tree',tree),"\n")
+    call map(entries,'s:sub(v:val,"^04.*\\zs$","/")')
+    call map(entries,'tree.s:sub(v:val,".*\t","")')
+    return filter(entries,'v:val[ 0 : strlen(a:base)-1 ] ==# a:base')
+  endif
+endfunction
+
+call s:add_methods('repo',['dirglob','superglob'])
+
+function! s:repo_config(conf) dict abort
+  return matchstr(system(s:repo().git_command('config').' '.a:conf),"[^\r\n]*")
+endfun
+
+function! s:repo_user() dict abort
+  let username = s:repo().config('user.name')
+  let useremail = s:repo().config('user.email')
+  return username.' <'.useremail.'>'
+endfun
+
+function! s:repo_aliases() dict abort
+  if !has_key(self,'_aliases')
+    let self._aliases = {}
+    for line in split(self.git_chomp('config','--get-regexp','^alias[.]'),"\n")
+      let self._aliases[matchstr(line,'\.\zs\S\+')] = matchstr(line,' \zs.*')
+    endfor
+  endif
+  return self._aliases
+endfunction
+
+call s:add_methods('repo',['config', 'user', 'aliases'])
+
+function! s:repo_keywordprg() dict abort
+  let args = ' --git-dir='.escape(self.dir(),"\\\"' ")
+  if has('gui_running') && !has('win32')
+    return g:fugitive_git_executable . ' --no-pager' . args . ' log -1'
+  else
+    return g:fugitive_git_executable . args . ' show'
+  endif
+endfunction
+
+call s:add_methods('repo',['keywordprg'])
+
+" Section: Buffer
+
+let s:buffer_prototype = {}
+
+function! s:buffer(...) abort
+  let buffer = {'#': bufnr(a:0 ? a:1 : '%')}
+  call extend(extend(buffer,s:buffer_prototype,'keep'),s:abstract_prototype,'keep')
+  if buffer.getvar('git_dir') !=# ''
+    return buffer
+  endif
+  call s:throw('not a git repository: '.expand('%:p'))
+endfunction
+
+function! fugitive#buffer(...) abort
+  return s:buffer(a:0 ? a:1 : '%')
+endfunction
+
+function! s:buffer_getvar(var) dict abort
+  return getbufvar(self['#'],a:var)
+endfunction
+
+function! s:buffer_setvar(var,value) dict abort
+  return setbufvar(self['#'],a:var,a:value)
+endfunction
+
+function! s:buffer_getline(lnum) dict abort
+  return get(getbufline(self['#'], a:lnum), 0, '')
+endfunction
+
+function! s:buffer_repo() dict abort
+  return s:repo(self.getvar('git_dir'))
+endfunction
+
+function! s:buffer_type(...) dict abort
+  if self.getvar('fugitive_type') != ''
+    let type = self.getvar('fugitive_type')
+  elseif fnamemodify(self.spec(),':p') =~# '.\git/refs/\|\.git/\w*HEAD$'
+    let type = 'head'
+  elseif self.getline(1) =~ '^tree \x\{40\}$' && self.getline(2) == ''
+    let type = 'tree'
+  elseif self.getline(1) =~ '^\d\{6\} \w\{4\} \x\{40\}\>\t'
+    let type = 'tree'
+  elseif self.getline(1) =~ '^\d\{6\} \x\{40\}\> \d\t'
+    let type = 'index'
+  elseif isdirectory(self.spec())
+    let type = 'directory'
+  elseif self.spec() == ''
+    let type = 'null'
+  else
+    let type = 'file'
+  endif
+  if a:0
+    return !empty(filter(copy(a:000),'v:val ==# type'))
+  else
+    return type
+  endif
+endfunction
+
+if has('win32')
+
+  function! s:buffer_spec() dict abort
+    let bufname = bufname(self['#'])
+    let retval = ''
+    for i in split(bufname,'[^:]\zs\\')
+      let retval = fnamemodify((retval==''?'':retval.'\').i,':.')
+    endfor
+    return s:shellslash(fnamemodify(retval,':p'))
+  endfunction
+
+else
+
+  function! s:buffer_spec() dict abort
+    let bufname = bufname(self['#'])
+    return s:shellslash(bufname == '' ? '' : fnamemodify(bufname,':p'))
+  endfunction
+
+endif
+
+function! s:buffer_name() dict abort
+  return self.spec()
+endfunction
+
+function! s:buffer_commit() dict abort
+  return matchstr(self.spec(),'^fugitive://.\{-\}//\zs\w*')
+endfunction
+
+function! s:buffer_path(...) dict abort
+  let rev = matchstr(self.spec(),'^fugitive://.\{-\}//\zs.*')
+  if rev != ''
+    let rev = s:sub(rev,'\w*','')
+  elseif self.spec()[0 : len(self.repo().dir())] ==# self.repo().dir() . '/'
+    let rev = '/.git'.self.spec()[strlen(self.repo().dir()) : -1]
+  elseif !self.repo().bare() && self.spec()[0 : len(self.repo().tree())] ==# self.repo().tree() . '/'
+    let rev = self.spec()[strlen(self.repo().tree()) : -1]
+  endif
+  return s:sub(s:sub(rev,'.\zs/$',''),'^/',a:0 ? a:1 : '')
+endfunction
+
+function! s:buffer_rev() dict abort
+  let rev = matchstr(self.spec(),'^fugitive://.\{-\}//\zs.*')
+  if rev =~ '^\x/'
+    return ':'.rev[0].':'.rev[2:-1]
+  elseif rev =~ '.'
+    return s:sub(rev,'/',':')
+  elseif self.spec() =~ '\.git/index$'
+    return ':'
+  elseif self.spec() =~ '\.git/refs/\|\.git/.*HEAD$'
+    return self.spec()[strlen(self.repo().dir())+1 : -1]
+  else
+    return self.path('/')
+  endif
+endfunction
+
+function! s:buffer_sha1() dict abort
+  if self.spec() =~ '^fugitive://' || self.spec() =~ '\.git/refs/\|\.git/.*HEAD$'
+    return self.repo().rev_parse(self.rev())
+  else
+    return ''
+  endif
+endfunction
+
+function! s:buffer_expand(rev) dict abort
+  if a:rev =~# '^:[0-3]$'
+    let file = a:rev.self.path(':')
+  elseif a:rev =~# '^[-:]/$'
+    let file = '/'.self.path()
+  elseif a:rev =~# '^-'
+    let file = 'HEAD^{}'.a:rev[1:-1].self.path(':')
+  elseif a:rev =~# '^@{'
+    let file = 'HEAD'.a:rev.self.path(':')
+  elseif a:rev =~# '^[~^]'
+    let commit = s:sub(self.commit(),'^\d=$','HEAD')
+    let file = commit.a:rev.self.path(':')
+  else
+    let file = a:rev
+  endif
+  return s:sub(s:sub(file,'\%$',self.path()),'\.\@<=/$','')
+endfunction
+
+function! s:buffer_containing_commit() dict abort
+  if self.commit() =~# '^\d$'
+    return ':'
+  elseif self.commit() =~# '.'
+    return self.commit()
+  else
+    return 'HEAD'
+  endif
+endfunction
+
+function! s:buffer_up(...) dict abort
+  let rev = self.rev()
+  let c = a:0 ? a:1 : 1
+  while c
+    if rev =~# '^[/:]$'
+      let rev = 'HEAD'
+    elseif rev =~# '^:'
+      let rev = ':'
+    elseif rev =~# '^refs/[^^~:]*$\|^[^^~:]*HEAD$'
+      let rev .= '^{}'
+    elseif rev =~# '^/\|:.*/'
+      let rev = s:sub(rev, '.*\zs/.*', '')
+    elseif rev =~# ':.'
+      let rev = matchstr(rev, '^[^:]*:')
+    elseif rev =~# ':$'
+      let rev = rev[0:-2]
+    else
+      return rev.'~'.c
+    endif
+    let c -= 1
+  endwhile
+  return rev
+endfunction
+
+call s:add_methods('buffer',['getvar','setvar','getline','repo','type','spec','name','commit','path','rev','sha1','expand','containing_commit','up'])
+
+" Section: Git
+
+call s:command("-bang -nargs=? -complete=customlist,s:GitComplete Git :execute s:Git(<bang>0,<q-args>)")
+
+function! s:ExecuteInTree(cmd) abort
+  let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd ' : 'cd '
+  let dir = getcwd()
+  try
+    execute cd.'`=s:repo().tree()`'
+    execute a:cmd
+  finally
+    execute cd.'`=dir`'
+  endtry
+endfunction
+
+function! s:Git(bang, args) abort
+  if a:bang
+    return s:Edit('edit', 1, a:args)
+  endif
+  let git = g:fugitive_git_executable
+  if has('gui_running') && !has('win32')
+    let git .= ' --no-pager'
+  endif
+  let args = matchstr(a:args,'\v\C.{-}%($|\\@<!%(\\\\)*\|)@=')
+  call s:ExecuteInTree('!'.git.' '.args)
+  call fugitive#reload_status()
+  return matchstr(a:args, '\v\C\\@<!%(\\\\)*\|\zs.*')
+endfunction
+
+function! s:GitComplete(A,L,P) abort
+  if !exists('s:exec_path')
+    let s:exec_path = s:sub(system(g:fugitive_git_executable.' --exec-path'),'\n$','')
+  endif
+  let cmds = map(split(glob(s:exec_path.'/git-*'),"\n"),'s:sub(v:val[strlen(s:exec_path)+5 : -1],"\\.exe$","")')
+  if a:L =~ ' [[:alnum:]-]\+ '
+    return s:repo().superglob(a:A)
+  else
+    return filter(sort(cmds+keys(s:repo().aliases())), 'strpart(v:val, 0, strlen(a:A)) ==# a:A')
+  endif
+endfunction
+
+" Section: Gcd, Glcd
+
+function! s:DirComplete(A,L,P) abort
+  let matches = s:repo().dirglob(a:A)
+  return matches
+endfunction
+
+call s:command("-bar -bang -nargs=? -complete=customlist,s:DirComplete Gcd  :cd<bang>  `=s:repo().bare() ? s:repo().dir(<q-args>) : s:repo().tree(<q-args>)`")
+call s:command("-bar -bang -nargs=? -complete=customlist,s:DirComplete Glcd :lcd<bang> `=s:repo().bare() ? s:repo().dir(<q-args>) : s:repo().tree(<q-args>)`")
+
+" Section: Gstatus
+
+call s:command("-bar Gstatus :execute s:Status()")
+augroup fugitive_status
+  autocmd!
+  if !has('win32')
+    autocmd FocusGained,ShellCmdPost * call fugitive#reload_status()
+  endif
+augroup END
+
+function! s:Status() abort
+  try
+    Gpedit :
+    wincmd P
+    setlocal foldmethod=syntax foldlevel=1
+    nnoremap <buffer> <silent> q    :<C-U>bdelete<CR>
+  catch /^fugitive:/
+    return 'echoerr v:errmsg'
+  endtry
+  return ''
+endfunction
+
+function! fugitive#reload_status() abort
+  if exists('s:reloading_status')
+    return
+  endif
+  try
+    let s:reloading_status = 1
+    let mytab = tabpagenr()
+    for tab in [mytab] + range(1,tabpagenr('$'))
+      for winnr in range(1,tabpagewinnr(tab,'$'))
+        if getbufvar(tabpagebuflist(tab)[winnr-1],'fugitive_type') ==# 'index'
+          execute 'tabnext '.tab
+          if winnr != winnr()
+            execute winnr.'wincmd w'
+            let restorewinnr = 1
+          endif
+          try
+            if !&modified
+              call s:BufReadIndex()
+            endif
+          finally
+            if exists('restorewinnr')
+              wincmd p
+            endif
+            execute 'tabnext '.mytab
+          endtry
+        endif
+      endfor
+    endfor
+  finally
+    unlet! s:reloading_status
+  endtry
+endfunction
+
+function! s:stage_info(lnum) abort
+  let filename = matchstr(getline(a:lnum),'^#\t\zs.\{-\}\ze\%( ([^()[:digit:]]\+)\)\=$')
+  let lnum = a:lnum
+  if has('multi_byte_encoding')
+    let colon = '\%(:\|\%uff1a\)'
+  else
+    let colon = ':'
+  endif
+  while lnum && getline(lnum) !~# colon.'$'
+    let lnum -= 1
+  endwhile
+  if !lnum
+    return ['', '']
+  elseif (getline(lnum+1) =~# '^# .*\<git \%(reset\|rm --cached\) ' && getline(lnum+2) ==# '#') || getline(lnum) ==# '# Changes to be committed:'
+    return [matchstr(filename, colon.' *\zs.*'), 'staged']
+  elseif (getline(lnum+1) =~# '^# .*\<git add ' && getline(lnum+2) ==# '#' && getline(lnum+3) !~# colon.'  ') || getline(lnum) ==# '# Untracked files:'
+    return [filename, 'untracked']
+  elseif getline(lnum+2) =~# '^# .*\<git checkout ' || getline(lnum) ==# '# Changes not staged for commit:'
+    return [matchstr(filename, colon.' *\zs.*'), 'unstaged']
+  elseif getline(lnum+2) =~# '^# .*\<git \%(add\|rm\)' || getline(lnum) ==# '# Unmerged paths:'
+    return [matchstr(filename, colon.' *\zs.*'), 'unmerged']
+  else
+    return ['', 'unknown']
+  endif
+endfunction
+
+function! s:StageNext(count) abort
+  for i in range(a:count)
+    call search('^#\t.*','W')
+  endfor
+  return '.'
+endfunction
+
+function! s:StagePrevious(count) abort
+  if line('.') == 1 && exists(':CtrlP') && get(g:, 'ctrl_p_map') =~? '^<c-p>$'
+    return 'CtrlP '.fnameescape(s:repo().tree())
+  else
+    for i in range(a:count)
+      call search('^#\t.*','Wbe')
+    endfor
+    return '.'
+  endif
+endfunction
+
+function! s:StageReloadSeek(target,lnum1,lnum2) abort
+  let jump = a:target
+  let f = matchstr(getline(a:lnum1-1),'^#\t\%([[:alpha:] ]\+: *\|.*\%uff1a *\)\=\zs.*')
+  if f !=# '' | let jump = f | endif
+  let f = matchstr(getline(a:lnum2+1),'^#\t\%([[:alpha:] ]\+: *\|.*\%uff1a *\)\=\zs.*')
+  if f !=# '' | let jump = f | endif
+  silent! edit!
+  1
+  redraw
+  call search('^#\t\%([[:alpha:] ]\+: *\|.*\%uff1a *\)\=\V'.jump.'\%( ([^()[:digit:]]\+)\)\=\$','W')
+endfunction
+
+function! s:StageUndo() abort
+  let [filename, section] = s:stage_info(line('.'))
+  if empty(filename)
+    return ''
+  endif
+  let repo = s:repo()
+  let hash = repo.git_chomp('hash-object', '-w', filename)
+  if !empty(hash)
+    if section ==# 'untracked'
+      call delete(s:repo().tree(filename))
+    elseif section ==# 'unstaged'
+      call repo.git_chomp('checkout', '--', filename)
+    else
+      call repo.git_chomp('checkout', 'HEAD', '--', filename)
+    endif
+    call s:StageReloadSeek(filename, line('.'), line('.'))
+    let @" = hash
+    return 'checktime|redraw|echomsg ' .
+          \ string('To restore, :Git cat-file blob '.hash[0:6].' > '.filename)
+  endif
+endfunction
+
+function! s:StageDiff(diff) abort
+  let [filename, section] = s:stage_info(line('.'))
+  if filename ==# '' && section ==# 'staged'
+    return 'Git! diff --no-ext-diff --cached'
+  elseif filename ==# ''
+    return 'Git! diff --no-ext-diff'
+  elseif filename =~# ' -> '
+    let [old, new] = split(filename,' -> ')
+    execute 'Gedit '.s:fnameescape(':0:'.new)
+    return a:diff.' HEAD:'.s:fnameescape(old)
+  elseif section ==# 'staged'
+    execute 'Gedit '.s:fnameescape(':0:'.filename)
+    return a:diff.' -'
+  else
+    execute 'Gedit '.s:fnameescape('/'.filename)
+    return a:diff
+  endif
+endfunction
+
+function! s:StageDiffEdit() abort
+  let [filename, section] = s:stage_info(line('.'))
+  let arg = (filename ==# '' ? '.' : filename)
+  if section ==# 'staged'
+    return 'Git! diff --no-ext-diff --cached '.s:shellesc(arg)
+  elseif section ==# 'untracked'
+    let repo = s:repo()
+    call repo.git_chomp_in_tree('add','--intent-to-add',arg)
+    if arg ==# '.'
+      silent! edit!
+      1
+      if !search('^# .*:\n#.*\n# .*"git checkout \|^# Changes not staged for commit:$','W')
+        call search('^# .*:$','W')
+      endif
+    else
+      call s:StageReloadSeek(arg,line('.'),line('.'))
+    endif
+    return ''
+  else
+    return 'Git! diff --no-ext-diff '.s:shellesc(arg)
+  endif
+endfunction
+
+function! s:StageToggle(lnum1,lnum2) abort
+  if a:lnum1 == 1 && a:lnum2 == 1
+    return 'Gedit /.git|call search("^index$", "wc")'
+  endif
+  try
+    let output = ''
+    for lnum in range(a:lnum1,a:lnum2)
+      let [filename, section] = s:stage_info(lnum)
+      let repo = s:repo()
+      if getline('.') =~# '^# .*:$'
+        if section ==# 'staged'
+          call repo.git_chomp_in_tree('reset','-q')
+          silent! edit!
+          1
+          if !search('^# .*:\n# .*"git add .*\n#\n\|^# Untracked files:$','W')
+            call search('^# .*:$','W')
+          endif
+          return ''
+        elseif section ==# 'unstaged'
+          call repo.git_chomp_in_tree('add','-u')
+          silent! edit!
+          1
+          if !search('^# .*:\n# .*"git add .*\n#\n\|^# Untracked files:$','W')
+            call search('^# .*:$','W')
+          endif
+          return ''
+        else
+          call repo.git_chomp_in_tree('add','.')
+          silent! edit!
+          1
+          call search('^# .*:$','W')
+          return ''
+        endif
+      endif
+      if filename ==# ''
+        continue
+      endif
+      execute lnum
+      if filename =~ ' -> '
+        let cmd = ['mv','--'] + reverse(split(filename,' -> '))
+        let filename = cmd[-1]
+      elseif section ==# 'staged'
+        let cmd = ['reset','-q','--',filename]
+      elseif getline(lnum) =~# '^#\tdeleted:'
+        let cmd = ['rm','--',filename]
+      elseif getline(lnum) =~# '^#\tmodified:'
+        let cmd = ['add','--',filename]
+      else
+        let cmd = ['add','-A','--',filename]
+      endif
+      if !exists('first_filename')
+        let first_filename = filename
+      endif
+      let output .= call(repo.git_chomp_in_tree,cmd,s:repo())."\n"
+    endfor
+    if exists('first_filename')
+      call s:StageReloadSeek(first_filename,a:lnum1,a:lnum2)
+    endif
+    echo s:sub(s:gsub(output,'\n+','\n'),'\n$','')
+  catch /^fugitive:/
+    return 'echoerr v:errmsg'
+  endtry
+  return 'checktime'
+endfunction
+
+function! s:StagePatch(lnum1,lnum2) abort
+  let add = []
+  let reset = []
+
+  for lnum in range(a:lnum1,a:lnum2)
+    let [filename, section] = s:stage_info(lnum)
+    if getline('.') =~# '^# .*:$' && section ==# 'staged'
+      return 'Git reset --patch'
+    elseif getline('.') =~# '^# .*:$' && section ==# 'unstaged'
+      return 'Git add --patch'
+    elseif getline('.') =~# '^# .*:$' && section ==# 'untracked'
+      return 'Git add -N .'
+    elseif filename ==# ''
+      continue
+    endif
+    if !exists('first_filename')
+      let first_filename = filename
+    endif
+    execute lnum
+    if filename =~ ' -> '
+      let reset += [split(filename,' -> ')[1]]
+    elseif section ==# 'staged'
+      let reset += [filename]
+    elseif getline(lnum) !~# '^#\tdeleted:'
+      let add += [filename]
+    endif
+  endfor
+  try
+    if !empty(add)
+      execute "Git add --patch -- ".join(map(add,'s:shellesc(v:val)'))
+    endif
+    if !empty(reset)
+      execute "Git reset --patch -- ".join(map(add,'s:shellesc(v:val)'))
+    endif
+    if exists('first_filename')
+      silent! edit!
+      1
+      redraw
+      call search('^#\t\%([[:alpha:] ]\+: *\)\=\V'.first_filename.'\%( ([^()[:digit:]]\+)\)\=\$','W')
+    endif
+  catch /^fugitive:/
+    return 'echoerr v:errmsg'
+  endtry
+  return 'checktime'
+endfunction
+
+" Section: Gcommit
+
+call s:command("-nargs=? -complete=customlist,s:CommitComplete Gcommit :execute s:Commit(<q-args>)")
+
+function! s:Commit(args) abort
+  let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd ' : 'cd '
+  let dir = getcwd()
+  let msgfile = s:repo().dir('COMMIT_EDITMSG')
+  let outfile = tempname()
+  let errorfile = tempname()
+  try
+    try
+      execute cd.s:fnameescape(s:repo().tree())
+      if s:winshell()
+        let command = ''
+        let old_editor = $GIT_EDITOR
+        let $GIT_EDITOR = 'false'
+      else
+        let command = 'env GIT_EDITOR=false '
+      endif
+      let command .= s:repo().git_command('commit').' '.a:args
+      if &shell =~# 'csh'
+        noautocmd silent execute '!('.command.' > '.outfile.') >& '.errorfile
+      elseif a:args =~# '\%(^\| \)-\%(-interactive\|p\|-patch\)\>'
+        noautocmd execute '!'.command.' 2> '.errorfile
+      else
+        noautocmd silent execute '!'.command.' > '.outfile.' 2> '.errorfile
+      endif
+    finally
+      execute cd.'`=dir`'
+    endtry
+    if !has('gui_running')
+      redraw!
+    endif
+    if !v:shell_error
+      if filereadable(outfile)
+        for line in readfile(outfile)
+          echo line
+        endfor
+      endif
+      return ''
+    else
+      let errors = readfile(errorfile)
+      let error = get(errors,-2,get(errors,-1,'!'))
+      if error =~# 'false''\=\.$'
+        let args = a:args
+        let args = s:gsub(args,'%(%(^| )-- )@<!%(^| )@<=%(-[esp]|--edit|--interactive|patch|--signoff)%($| )','')
+        let args = s:gsub(args,'%(%(^| )-- )@<!%(^| )@<=%(-c|--reedit-message|--reuse-message|-F|--file|-m|--message)%(\s+|\=)%(''[^'']*''|"%(\\.|[^"])*"|\\.|\S)*','')
+        let args = s:gsub(args,'%(^| )@<=[%#]%(:\w)*','\=expand(submatch(0))')
+        let args = '-F '.s:shellesc(msgfile).' '.args
+        if args !~# '\%(^\| \)--cleanup\>'
+          let args = '--cleanup=strip '.args
+        endif
+        if bufname('%') == '' && line('$') == 1 && getline(1) == '' && !&mod
+          execute 'keepalt edit '.s:fnameescape(msgfile)
+        elseif s:buffer().type() ==# 'index'
+          execute 'keepalt edit '.s:fnameescape(msgfile)
+          execute (search('^#','n')+1).'wincmd+'
+          setlocal nopreviewwindow
+        else
+          execute 'keepalt split '.s:fnameescape(msgfile)
+        endif
+        let b:fugitive_commit_arguments = args
+        setlocal bufhidden=wipe filetype=gitcommit
+        return '1'
+      elseif error ==# '!'
+        return s:Status()
+      else
+        call s:throw(error)
+      endif
+    endif
+  catch /^fugitive:/
+    return 'echoerr v:errmsg'
+  finally
+    if exists('old_editor')
+      let $GIT_EDITOR = old_editor
+    endif
+    call delete(outfile)
+    call delete(errorfile)
+    call fugitive#reload_status()
+  endtry
+endfunction
+
+function! s:CommitComplete(A,L,P) abort
+  if a:A =~ '^-' || type(a:A) == type(0) " a:A is 0 on :Gcommit -<Tab>
+    let args = ['-C', '-F', '-a', '-c', '-e', '-i', '-m', '-n', '-o', '-q', '-s', '-t', '-u', '-v', '--all', '--allow-empty', '--amend', '--author=', '--cleanup=', '--dry-run', '--edit', '--file=', '--include', '--interactive', '--message=', '--no-verify', '--only', '--quiet', '--reedit-message=', '--reuse-message=', '--signoff', '--template=', '--untracked-files', '--verbose']
+    return filter(args,'v:val[0 : strlen(a:A)-1] ==# a:A')
+  else
+    return s:repo().superglob(a:A)
+  endif
+endfunction
+
+function! s:FinishCommit() abort
+  let args = getbufvar(+expand('<abuf>'),'fugitive_commit_arguments')
+  if !empty(args)
+    call setbufvar(+expand('<abuf>'),'fugitive_commit_arguments','')
+    return s:Commit(args)
+  endif
+  return ''
+endfunction
+
+" Section: Ggrep, Glog
+
+if !exists('g:fugitive_summary_format')
+  let g:fugitive_summary_format = '%s'
+endif
+
+call s:command("-bang -nargs=? -complete=customlist,s:EditComplete Ggrep :execute s:Grep('grep',<bang>0,<q-args>)")
+call s:command("-bang -nargs=? -complete=customlist,s:EditComplete Glgrep :execute s:Grep('lgrep',<bang>0,<q-args>)")
+call s:command("-bar -bang -nargs=* -range=0 -complete=customlist,s:EditComplete Glog :call s:Log('grep<bang>',<count>,<f-args>)")
+call s:command("-bar -bang -nargs=* -complete=customlist,s:EditComplete Gllog :call s:Log('lgrep<bang>',<count>,<f-args>)")
+
+function! s:Grep(cmd,bang,arg) abort
+  let grepprg = &grepprg
+  let grepformat = &grepformat
+  let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd ' : 'cd '
+  let dir = getcwd()
+  try
+    execute cd.'`=s:repo().tree()`'
+    let &grepprg = s:repo().git_command('--no-pager', 'grep', '-n')
+    let &grepformat = '%f:%l:%m'
+    exe a:cmd.'! '.escape(matchstr(a:arg,'\v\C.{-}%($|[''" ]\@=\|)@='),'|')
+    let list = a:cmd =~# '^l' ? getloclist(0) : getqflist()
+    for entry in list
+      if bufname(entry.bufnr) =~ ':'
+        let entry.filename = s:repo().translate(bufname(entry.bufnr))
+        unlet! entry.bufnr
+        let changed = 1
+      elseif a:arg =~# '\%(^\| \)--cached\>'
+        let entry.filename = s:repo().translate(':0:'.bufname(entry.bufnr))
+        unlet! entry.bufnr
+        let changed = 1
+      endif
+    endfor
+    if a:cmd =~# '^l' && exists('changed')
+      call setloclist(0, list, 'r')
+    elseif exists('changed')
+      call setqflist(list, 'r')
+    endif
+    if !a:bang && !empty(list)
+      return (a:cmd =~# '^l' ? 'l' : 'c').'first'.matchstr(a:arg,'\v\C[''" ]\zs\|.*')
+    else
+      return matchstr(a:arg,'\v\C[''" ]\|\zs.*')
+    endif
+  finally
+    let &grepprg = grepprg
+    let &grepformat = grepformat
+    execute cd.'`=dir`'
+  endtry
+endfunction
+
+function! s:Log(cmd, count, ...) abort
+  let path = s:buffer().path('/')
+  if path =~# '^/\.git\%(/\|$\)' || index(a:000,'--') != -1
+    let path = ''
+  endif
+  let cmd = ['--no-pager', 'log', '--no-color']
+  let cmd += ['--pretty=format:fugitive://'.s:repo().dir().'//%H'.path.':'.(a:count ? a:count : '').'::'.g:fugitive_summary_format]
+  if empty(filter(a:000[0 : index(a:000,'--')],'v:val !~# "^-"'))
+    if s:buffer().commit() =~# '\x\{40\}'
+      let cmd += [s:buffer().commit()]
+    elseif s:buffer().path() =~# '^\.git/refs/\|^\.git/.*HEAD$'
+      let cmd += [s:buffer().path()[5:-1]]
+    endif
+  end
+  let cmd += map(copy(a:000),'s:sub(v:val,"^\\%(%(:\\w)*)","\\=fnamemodify(s:buffer().path(),submatch(1))")')
+  if path =~# '/.'
+    let cmd += ['--',path[1:-1]]
+  endif
+  let grepformat = &grepformat
+  let grepprg = &grepprg
+  let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd ' : 'cd '
+  let dir = getcwd()
+  try
+    execute cd.'`=s:repo().tree()`'
+    let &grepprg = escape(call(s:repo().git_command,cmd,s:repo()),'%#')
+    let &grepformat = '%f:%l::%m,%f:::%m'
+    exe a:cmd
+  finally
+    let &grepformat = grepformat
+    let &grepprg = grepprg
+    execute cd.'`=dir`'
+  endtry
+endfunction
+
+" Section: Gedit, Gpedit, Gsplit, Gvsplit, Gtabedit, Gread
+
+function! s:Edit(cmd,bang,...) abort
+  let buffer = s:buffer()
+  if a:cmd !~# 'read'
+    if &previewwindow && getbufvar('','fugitive_type') ==# 'index'
+      wincmd p
+      if &diff
+        let mywinnr = winnr()
+        for winnr in range(winnr('$'),1,-1)
+          if winnr != mywinnr && getwinvar(winnr,'&diff')
+            execute winnr.'wincmd w'
+            close
+            if winnr('$') > 1
+              wincmd p
+            endif
+          endif
+        endfor
+      endif
+    endif
+  endif
+
+  if a:bang
+    let arglist = map(copy(a:000), 's:gsub(v:val, ''\\@<!%(\\\\)*\zs[%#]'', ''\=s:buffer().expand(submatch(0))'')')
+    let args = join(arglist, ' ')
+    if a:cmd =~# 'read'
+      let git = buffer.repo().git_command()
+      let last = line('$')
+      silent call s:ExecuteInTree((a:cmd ==# 'read' ? '$read' : a:cmd).'!'.git.' --no-pager '.args)
+      if a:cmd ==# 'read'
+        silent execute '1,'.last.'delete_'
+      endif
+      call fugitive#reload_status()
+      diffupdate
+      return 'redraw|echo '.string(':!'.git.' '.args)
+    else
+      let temp = resolve(tempname())
+      let s:temp_files[tolower(temp)] = { 'dir': buffer.repo().dir(), 'args': arglist }
+      silent execute a:cmd.' '.temp
+      if a:cmd =~# 'pedit'
+        wincmd P
+      endif
+      let echo = s:Edit('read',1,args)
+      silent write!
+      setlocal buftype=nowrite nomodified filetype=git foldmarker=<<<<<<<,>>>>>>>
+      if getline(1) !~# '^diff '
+        setlocal readonly nomodifiable
+      endif
+      if a:cmd =~# 'pedit'
+        wincmd p
+      endif
+      return echo
+    endif
+    return ''
+  endif
+
+  if a:0 && a:1 == ''
+    return ''
+  elseif a:0
+    let file = buffer.expand(join(a:000, ' '))
+  elseif expand('%') ==# ''
+    let file = ':'
+  elseif buffer.commit() ==# '' && buffer.path('/') !~# '^/.git\>'
+    let file = buffer.path(':')
+  else
+    let file = buffer.path('/')
+  endif
+  try
+    let file = buffer.repo().translate(file)
+  catch /^fugitive:/
+    return 'echoerr v:errmsg'
+  endtry
+  if a:cmd ==# 'read'
+    return 'silent %delete_|read '.s:fnameescape(file).'|silent 1delete_|diffupdate|'.line('.')
+  else
+    return a:cmd.' '.s:fnameescape(file)
+  endif
+endfunction
+
+function! s:EditComplete(A,L,P) abort
+  return map(s:repo().superglob(a:A), 'fnameescape(v:val)')
+endfunction
+
+function! s:EditRunComplete(A,L,P) abort
+  if a:L =~# '^\w\+!'
+    return s:GitComplete(a:A,a:L,a:P)
+  else
+    return s:repo().superglob(a:A)
+  endif
+endfunction
+
+call s:command("-bar -bang -nargs=* -complete=customlist,s:EditComplete Ge       :execute s:Edit('edit<bang>',0,<f-args>)")
+call s:command("-bar -bang -nargs=* -complete=customlist,s:EditComplete Gedit    :execute s:Edit('edit<bang>',0,<f-args>)")
+call s:command("-bar -bang -nargs=* -complete=customlist,s:EditRunComplete Gpedit   :execute s:Edit('pedit',<bang>0,<f-args>)")
+call s:command("-bar -bang -nargs=* -complete=customlist,s:EditRunComplete Gsplit   :execute s:Edit('split',<bang>0,<f-args>)")
+call s:command("-bar -bang -nargs=* -complete=customlist,s:EditRunComplete Gvsplit  :execute s:Edit('vsplit',<bang>0,<f-args>)")
+call s:command("-bar -bang -nargs=* -complete=customlist,s:EditRunComplete Gtabedit :execute s:Edit('tabedit',<bang>0,<f-args>)")
+call s:command("-bar -bang -nargs=* -count -complete=customlist,s:EditRunComplete Gread :execute s:Edit((!<count> && <line1> ? '' : <count>).'read',<bang>0,<f-args>)")
+
+" Section: Gwrite, Gwq
+
+call s:command("-bar -bang -nargs=* -complete=customlist,s:EditComplete Gwrite :execute s:Write(<bang>0,<f-args>)")
+call s:command("-bar -bang -nargs=* -complete=customlist,s:EditComplete Gw :execute s:Write(<bang>0,<f-args>)")
+call s:command("-bar -bang -nargs=* -complete=customlist,s:EditComplete Gwq :execute s:Wq(<bang>0,<f-args>)")
+
+function! s:Write(force,...) abort
+  if exists('b:fugitive_commit_arguments')
+    return 'write|bdelete'
+  elseif expand('%:t') == 'COMMIT_EDITMSG' && $GIT_INDEX_FILE != ''
+    return 'wq'
+  elseif s:buffer().type() == 'index'
+    return 'Gcommit'
+  elseif s:buffer().path() ==# '' && getline(4) =~# '^+++ '
+    let filename = getline(4)[6:-1]
+    setlocal buftype=
+    silent write
+    setlocal buftype=nowrite
+    if matchstr(getline(2),'index [[:xdigit:]]\+\.\.\zs[[:xdigit:]]\{7\}') ==# s:repo().rev_parse(':0:'.filename)[0:6]
+      let err = s:repo().git_chomp('apply','--cached','--reverse',s:buffer().spec())
+    else
+      let err = s:repo().git_chomp('apply','--cached',s:buffer().spec())
+    endif
+    if err !=# ''
+      let v:errmsg = split(err,"\n")[0]
+      return 'echoerr v:errmsg'
+    elseif a:force
+      return 'bdelete'
+    else
+      return 'Gedit '.fnameescape(filename)
+    endif
+  endif
+  let mytab = tabpagenr()
+  let mybufnr = bufnr('')
+  let path = a:0 ? join(a:000, ' ') : s:buffer().path()
+  if path =~# '^:\d\>'
+    return 'write'.(a:force ? '! ' : ' ').s:fnameescape(s:repo().translate(s:buffer().expand(path)))
+  endif
+  let always_permitted = (s:buffer().path() ==# path && s:buffer().commit() =~# '^0\=$')
+  if !always_permitted && !a:force && s:repo().git_chomp_in_tree('diff','--name-status','HEAD','--',path) . s:repo().git_chomp_in_tree('ls-files','--others','--',path) !=# ''
+    let v:errmsg = 'fugitive: file has uncommitted changes (use ! to override)'
+    return 'echoerr v:errmsg'
+  endif
+  let file = s:repo().translate(path)
+  let treebufnr = 0
+  for nr in range(1,bufnr('$'))
+    if fnamemodify(bufname(nr),':p') ==# file
+      let treebufnr = nr
+    endif
+  endfor
+
+  if treebufnr > 0 && treebufnr != bufnr('')
+    let temp = tempname()
+    silent execute '%write '.temp
+    for tab in [mytab] + range(1,tabpagenr('$'))
+      for winnr in range(1,tabpagewinnr(tab,'$'))
+        if tabpagebuflist(tab)[winnr-1] == treebufnr
+          execute 'tabnext '.tab
+          if winnr != winnr()
+            execute winnr.'wincmd w'
+            let restorewinnr = 1
+          endif
+          try
+            let lnum = line('.')
+            let last = line('$')
+            silent execute '$read '.temp
+            silent execute '1,'.last.'delete_'
+            silent write!
+            silent execute lnum
+            let did = 1
+          finally
+            if exists('restorewinnr')
+              wincmd p
+            endif
+            execute 'tabnext '.mytab
+          endtry
+        endif
+      endfor
+    endfor
+    if !exists('did')
+      call writefile(readfile(temp,'b'),file,'b')
+    endif
+  else
+    execute 'write! '.s:fnameescape(s:repo().translate(path))
+  endif
+
+  if a:force
+    let error = s:repo().git_chomp_in_tree('add', '--force', '--', path)
+  else
+    let error = s:repo().git_chomp_in_tree('add', '--', path)
+  endif
+  if v:shell_error
+    let v:errmsg = 'fugitive: '.error
+    return 'echoerr v:errmsg'
+  endif
+  if s:buffer().path() ==# path && s:buffer().commit() =~# '^\d$'
+    set nomodified
+  endif
+
+  let one = s:repo().translate(':1:'.path)
+  let two = s:repo().translate(':2:'.path)
+  let three = s:repo().translate(':3:'.path)
+  for nr in range(1,bufnr('$'))
+    let name = fnamemodify(bufname(nr), ':p')
+    if bufloaded(nr) && !getbufvar(nr,'&modified') && (name ==# one || name ==# two || name ==# three)
+      execute nr.'bdelete'
+    endif
+  endfor
+
+  unlet! restorewinnr
+  let zero = s:repo().translate(':0:'.path)
+  for tab in range(1,tabpagenr('$'))
+    for winnr in range(1,tabpagewinnr(tab,'$'))
+      let bufnr = tabpagebuflist(tab)[winnr-1]
+      let bufname = fnamemodify(bufname(bufnr), ':p')
+      if bufname ==# zero && bufnr != mybufnr
+        execute 'tabnext '.tab
+        if winnr != winnr()
+          execute winnr.'wincmd w'
+          let restorewinnr = 1
+        endif
+        try
+          let lnum = line('.')
+          let last = line('$')
+          silent execute '$read '.s:fnameescape(file)
+          silent execute '1,'.last.'delete_'
+          silent execute lnum
+          set nomodified
+          diffupdate
+        finally
+          if exists('restorewinnr')
+            wincmd p
+          endif
+          execute 'tabnext '.mytab
+        endtry
+        break
+      endif
+    endfor
+  endfor
+  call fugitive#reload_status()
+  return 'checktime'
+endfunction
+
+function! s:Wq(force,...) abort
+  let bang = a:force ? '!' : ''
+  if exists('b:fugitive_commit_arguments')
+    return 'wq'.bang
+  endif
+  let result = call(s:function('s:Write'),[a:force]+a:000)
+  if result =~# '^\%(write\|wq\|echoerr\)'
+    return s:sub(result,'^write','wq')
+  else
+    return result.'|quit'.bang
+  endif
+endfunction
+
+augroup fugitive_commit
+  autocmd!
+  autocmd VimLeavePre,BufDelete COMMIT_EDITMSG execute s:sub(s:FinishCommit(), '^echoerr (.*)', 'echohl ErrorMsg|echo \1|echohl NONE')
+augroup END
+
+" Section: Gdiff
+
+call s:command("-bang -bar -nargs=* -complete=customlist,s:EditComplete Gdiff :execute s:Diff('',<f-args>)")
+call s:command("-bar -nargs=* -complete=customlist,s:EditComplete Gvdiff :execute s:Diff('keepalt vert ',<f-args>)")
+call s:command("-bar -nargs=* -complete=customlist,s:EditComplete Gsdiff :execute s:Diff('keepalt ',<f-args>)")
+
+augroup fugitive_diff
+  autocmd!
+  autocmd BufWinLeave *
+        \ if s:can_diffoff(+expand('<abuf>')) && s:diff_window_count() == 2 |
+        \   call s:diffoff_all(getbufvar(+expand('<abuf>'), 'git_dir')) |
+        \ endif
+  autocmd BufWinEnter *
+        \ if s:can_diffoff(+expand('<abuf>')) && s:diff_window_count() == 1 |
+        \   call s:diffoff() |
+        \ endif
+augroup END
+
+function! s:can_diffoff(buf) abort
+  return getwinvar(bufwinnr(a:buf), '&diff') &&
+        \ !empty(getbufvar(a:buf, 'git_dir')) &&
+        \ !empty(getwinvar(bufwinnr(a:buf), 'fugitive_diff_restore'))
+endfunction
+
+function! fugitive#can_diffoff(buf) abort
+  return s:can_diffoff(a:buf)
+endfunction
+
+function! s:diff_modifier(count) abort
+  let fdc = matchstr(&diffopt, 'foldcolumn:\zs\d\+')
+  if &diffopt =~# 'horizontal' && &diffopt !~# 'vertical'
+    return 'keepalt '
+  elseif &diffopt =~# 'vertical'
+    return 'keepalt vert '
+  elseif winwidth(0) <= a:count * ((&tw ? &tw : 80) + (empty(fdc) ? 2 : fdc))
+    return 'keepalt '
+  else
+    return 'keepalt vert '
+  endif
+endfunction
+
+function! s:diff_window_count() abort
+  let c = 0
+  for nr in range(1,winnr('$'))
+    let c += getwinvar(nr,'&diff')
+  endfor
+  return c
+endfunction
+
+function! s:diff_restore() abort
+  let restore = 'setlocal nodiff noscrollbind'
+        \ . ' scrollopt=' . &l:scrollopt
+        \ . (&l:wrap ? ' wrap' : ' nowrap')
+        \ . ' foldlevel=999'
+        \ . ' foldmethod=' . &l:foldmethod
+        \ . ' foldcolumn=' . &l:foldcolumn
+        \ . ' foldlevel=' . &l:foldlevel
+        \ . (&l:foldenable ? ' foldenable' : ' nofoldenable')
+  if has('cursorbind')
+    let restore .= (&l:cursorbind ? ' ' : ' no') . 'cursorbind'
+  endif
+  return restore
+endfunction
+
+function! s:diffthis() abort
+  if !&diff
+    let w:fugitive_diff_restore = s:diff_restore()
+    diffthis
+  endif
+endfunction
+
+function! s:diffoff() abort
+  if exists('w:fugitive_diff_restore')
+    execute w:fugitive_diff_restore
+    unlet w:fugitive_diff_restore
+  else
+    diffoff
+  endif
+endfunction
+
+function! s:diffoff_all(dir) abort
+  for nr in range(1,winnr('$'))
+    if getwinvar(nr,'&diff')
+      if nr != winnr()
+        execute nr.'wincmd w'
+        let restorewinnr = 1
+      endif
+      if exists('b:git_dir') && b:git_dir ==# a:dir
+        call s:diffoff()
+      endif
+    endif
+  endfor
+endfunction
+
+function! s:buffer_compare_age(commit) dict abort
+  let scores = {':0': 1, ':1': 2, ':2': 3, ':': 4, ':3': 5}
+  let my_score    = get(scores,':'.self.commit(),0)
+  let their_score = get(scores,':'.a:commit,0)
+  if my_score || their_score
+    return my_score < their_score ? -1 : my_score != their_score
+  elseif self.commit() ==# a:commit
+    return 0
+  endif
+  let base = self.repo().git_chomp('merge-base',self.commit(),a:commit)
+  if base ==# self.commit()
+    return -1
+  elseif base ==# a:commit
+    return 1
+  endif
+  let my_time    = +self.repo().git_chomp('log','--max-count=1','--pretty=format:%at',self.commit())
+  let their_time = +self.repo().git_chomp('log','--max-count=1','--pretty=format:%at',a:commit)
+  return my_time < their_time ? -1 : my_time != their_time
+endfunction
+
+call s:add_methods('buffer',['compare_age'])
+
+function! s:Diff(vert,...) abort
+  let vert = empty(a:vert) ? s:diff_modifier(2) : a:vert
+  if exists(':DiffGitCached')
+    return 'DiffGitCached'
+  elseif (!a:0 || a:1 == ':') && s:buffer().commit() =~# '^[0-1]\=$' && s:repo().git_chomp_in_tree('ls-files', '--unmerged', '--', s:buffer().path()) !=# ''
+    let vert = empty(a:vert) ? s:diff_modifier(3) : a:vert
+    let nr = bufnr('')
+    execute 'leftabove '.vert.'split `=fugitive#buffer().repo().translate(s:buffer().expand('':2''))`'
+    execute 'nnoremap <buffer> <silent> dp :diffput '.nr.'<Bar>diffupdate<CR>'
+    call s:diffthis()
+    wincmd p
+    execute 'rightbelow '.vert.'split `=fugitive#buffer().repo().translate(s:buffer().expand('':3''))`'
+    execute 'nnoremap <buffer> <silent> dp :diffput '.nr.'<Bar>diffupdate<CR>'
+    call s:diffthis()
+    wincmd p
+    call s:diffthis()
+    return ''
+  elseif a:0
+    let arg = join(a:000, ' ')
+    if arg ==# ''
+      return ''
+    elseif arg ==# '/'
+      let file = s:buffer().path('/')
+    elseif arg ==# ':'
+      let file = s:buffer().path(':0:')
+    elseif arg =~# '^:/.'
+      try
+        let file = s:repo().rev_parse(arg).s:buffer().path(':')
+      catch /^fugitive:/
+        return 'echoerr v:errmsg'
+      endtry
+    else
+      let file = s:buffer().expand(arg)
+    endif
+    if file !~# ':' && file !~# '^/' && s:repo().git_chomp('cat-file','-t',file) =~# '^\%(tag\|commit\)$'
+      let file = file.s:buffer().path(':')
+    endif
+  else
+    let file = s:buffer().path(s:buffer().commit() == '' ? ':0:' : '/')
+  endif
+  try
+    let spec = s:repo().translate(file)
+    let commit = matchstr(spec,'\C[^:/]//\zs\x\+')
+    let restore = s:diff_restore()
+    if exists('+cursorbind')
+      setlocal cursorbind
+    endif
+    let w:fugitive_diff_restore = restore
+    if s:buffer().compare_age(commit) < 0
+      execute 'rightbelow '.vert.'diffsplit '.s:fnameescape(spec)
+    else
+      execute 'leftabove '.vert.'diffsplit '.s:fnameescape(spec)
+    endif
+    let w:fugitive_diff_restore = restore
+    let winnr = winnr()
+    if getwinvar('#', '&diff')
+      wincmd p
+      call feedkeys("\<C-W>p", 'n')
+    endif
+    return ''
+  catch /^fugitive:/
+    return 'echoerr v:errmsg'
+  endtry
+endfunction
+
+" Section: Gmove, Gremove
+
+function! s:Move(force,destination) abort
+  if a:destination =~# '^/'
+    let destination = a:destination[1:-1]
+  else
+    let destination = s:shellslash(fnamemodify(s:sub(a:destination,'[%#]%(:\w)*','\=expand(submatch(0))'),':p'))
+    if destination[0:strlen(s:repo().tree())] ==# s:repo().tree('')
+      let destination = destination[strlen(s:repo().tree('')):-1]
+    endif
+  endif
+  if isdirectory(s:buffer().spec())
+    " Work around Vim parser idiosyncrasy
+    let discarded = s:buffer().setvar('&swapfile',0)
+  endif
+  let message = call(s:repo().git_chomp_in_tree,['mv']+(a:force ? ['-f'] : [])+['--', s:buffer().path(), destination], s:repo())
+  if v:shell_error
+    let v:errmsg = 'fugitive: '.message
+    return 'echoerr v:errmsg'
+  endif
+  let destination = s:repo().tree(destination)
+  if isdirectory(destination)
+    let destination = fnamemodify(s:sub(destination,'/$','').'/'.expand('%:t'),':.')
+  endif
+  call fugitive#reload_status()
+  if s:buffer().commit() == ''
+    if isdirectory(destination)
+      return 'keepalt edit '.s:fnameescape(destination)
+    else
+      return 'keepalt saveas! '.s:fnameescape(destination)
+    endif
+  else
+    return 'file '.s:fnameescape(s:repo().translate(':0:'.destination))
+  endif
+endfunction
+
+function! s:MoveComplete(A,L,P) abort
+  if a:A =~ '^/'
+    return s:repo().superglob(a:A)
+  else
+    let matches = split(glob(a:A.'*'),"\n")
+    call map(matches,'v:val !~ "/$" && isdirectory(v:val) ? v:val."/" : v:val')
+    return matches
+  endif
+endfunction
+
+function! s:Remove(force) abort
+  if s:buffer().commit() ==# ''
+    let cmd = ['rm']
+  elseif s:buffer().commit() ==# '0'
+    let cmd = ['rm','--cached']
+  else
+    let v:errmsg = 'fugitive: rm not supported here'
+    return 'echoerr v:errmsg'
+  endif
+  if a:force
+    let cmd += ['--force']
+  endif
+  let message = call(s:repo().git_chomp_in_tree,cmd+['--',s:buffer().path()],s:repo())
+  if v:shell_error
+    let v:errmsg = 'fugitive: '.s:sub(message,'error:.*\zs\n\(.*-f.*',' (add ! to force)')
+    return 'echoerr '.string(v:errmsg)
+  else
+    call fugitive#reload_status()
+    return 'bdelete'.(a:force ? '!' : '')
+  endif
+endfunction
+
+augroup fugitive_remove
+  autocmd!
+  autocmd User Fugitive if s:buffer().commit() =~# '^0\=$' |
+        \ exe "command! -buffer -bar -bang -nargs=1 -complete=customlist,s:MoveComplete Gmove :execute s:Move(<bang>0,<q-args>)" |
+        \ exe "command! -buffer -bar -bang Gremove :execute s:Remove(<bang>0)" |
+        \ endif
+augroup END
+
+" Section: Gblame
+
+augroup fugitive_blame
+  autocmd!
+  autocmd BufReadPost *.fugitiveblame setfiletype fugitiveblame
+  autocmd FileType fugitiveblame setlocal nomodeline | if exists('b:git_dir') | let &l:keywordprg = s:repo().keywordprg() | endif
+  autocmd Syntax fugitiveblame call s:BlameSyntax()
+  autocmd User Fugitive if s:buffer().type('file', 'blob') | exe "command! -buffer -bar -bang -range=0 -nargs=* Gblame :execute s:Blame(<bang>0,<line1>,<line2>,<count>,[<f-args>])" | endif
+augroup END
+
+function! s:linechars(pattern) abort
+  let chars = strlen(s:gsub(matchstr(getline('.'), a:pattern), '.', '.'))
+  if exists('*synconcealed') && &conceallevel > 1
+    for col in range(1, chars)
+      let chars -= synconcealed(line('.'), col)[0]
+    endfor
+  endif
+  return chars
+endfunction
+
+function! s:Blame(bang,line1,line2,count,args) abort
+  try
+    if s:buffer().path() == ''
+      call s:throw('file or blob required')
+    endif
+    if filter(copy(a:args),'v:val !~# "^\\%(--root\|--show-name\\|-\\=\\%([ltfnsew]\\|[MC]\\d*\\)\\+\\)$"') != []
+      call s:throw('unsupported option')
+    endif
+    call map(a:args,'s:sub(v:val,"^\\ze[^-]","-")')
+    let cmd = ['--no-pager', 'blame', '--show-number'] + a:args
+    if s:buffer().commit() =~# '\D\|..'
+      let cmd += [s:buffer().commit()]
+    else
+      let cmd += ['--contents', '-']
+    endif
+    let cmd += ['--', s:buffer().path()]
+    let basecmd = escape(call(s:repo().git_command,cmd,s:repo()),'!')
+    try
+      let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd ' : 'cd '
+      if !s:repo().bare()
+        let dir = getcwd()
+        execute cd.'`=s:repo().tree()`'
+      endif
+      if a:count
+        execute 'write !'.substitute(basecmd,' blame ',' blame -L '.a:line1.','.a:line2.' ','g')
+      else
+        let error = resolve(tempname())
+        let temp = error.'.fugitiveblame'
+        if &shell =~# 'csh'
+          silent! execute '%write !('.basecmd.' > '.temp.') >& '.error
+        else
+          silent! execute '%write !'.basecmd.' > '.temp.' 2> '.error
+        endif
+        if exists('l:dir')
+          execute cd.'`=dir`'
+          unlet dir
+        endif
+        if v:shell_error
+          call s:throw(join(readfile(error),"\n"))
+        endif
+        for winnr in range(winnr('$'),1,-1)
+          call setwinvar(winnr, '&scrollbind', 0)
+          if getbufvar(winbufnr(winnr), 'fugitive_blamed_bufnr')
+            execute winbufnr(winnr).'bdelete'
+          endif
+        endfor
+        let bufnr = bufnr('')
+        let restore = 'call setwinvar(bufwinnr('.bufnr.'),"&scrollbind",0)'
+        if &l:wrap
+          let restore .= '|call setwinvar(bufwinnr('.bufnr.'),"&wrap",1)'
+        endif
+        if &l:foldenable
+          let restore .= '|call setwinvar(bufwinnr('.bufnr.'),"&foldenable",1)'
+        endif
+        setlocal scrollbind nowrap nofoldenable
+        let top = line('w0') + &scrolloff
+        let current = line('.')
+        let s:temp_files[tolower(temp)] = { 'dir': s:repo().dir(), 'args': cmd }
+        exe 'keepalt leftabove vsplit '.temp
+        let b:fugitive_blamed_bufnr = bufnr
+        let w:fugitive_leave = restore
+        let b:fugitive_blame_arguments = join(a:args,' ')
+        execute top
+        normal! zt
+        execute current
+        setlocal nomodified nomodifiable nonumber scrollbind nowrap foldcolumn=0 nofoldenable winfixwidth filetype=fugitiveblame
+        if exists('+concealcursor')
+          setlocal concealcursor=nc conceallevel=2
+        endif
+        if exists('+relativenumber')
+          setlocal norelativenumber
+        endif
+        execute "vertical resize ".(s:linechars('.\{-\}\ze\s\+\d\+)')+1)
+        nnoremap <buffer> <silent> <F1> :help fugitive-:Gblame<CR>
+        nnoremap <buffer> <silent> g?   :help fugitive-:Gblame<CR>
+        nnoremap <buffer> <silent> q    :exe substitute(bufwinnr(b:fugitive_blamed_bufnr).' wincmd w<Bar>'.bufnr('').'bdelete','^-1','','')<CR>
+        nnoremap <buffer> <silent> gq   :exe substitute(bufwinnr(b:fugitive_blamed_bufnr).' wincmd w<Bar>'.bufnr('').'bdelete<Bar>if expand("%:p") =~# "^fugitive:[\\/][\\/]"<Bar>Gedit<Bar>endif','^-1','','')<CR>
+        nnoremap <buffer> <silent> <CR> :<C-U>exe <SID>BlameCommit("exe 'norm q'<Bar>edit")<CR>
+        nnoremap <buffer> <silent> -    :<C-U>exe <SID>BlameJump('')<CR>
+        nnoremap <buffer> <silent> P    :<C-U>exe <SID>BlameJump('^'.v:count1)<CR>
+        nnoremap <buffer> <silent> ~    :<C-U>exe <SID>BlameJump('~'.v:count1)<CR>
+        nnoremap <buffer> <silent> i    :<C-U>exe <SID>BlameCommit("exe 'norm q'<Bar>edit")<CR>
+        nnoremap <buffer> <silent> o    :<C-U>exe <SID>BlameCommit((&splitbelow ? "botright" : "topleft")." split")<CR>
+        nnoremap <buffer> <silent> O    :<C-U>exe <SID>BlameCommit("tabedit")<CR>
+        nnoremap <buffer> <silent> A    :<C-u>exe "vertical resize ".(<SID>linechars('.\{-\}\ze [0-9:/+-][0-9:/+ -]* \d\+)')+1+v:count)<CR>
+        nnoremap <buffer> <silent> C    :<C-u>exe "vertical resize ".(<SID>linechars('^\S\+')+1+v:count)<CR>
+        nnoremap <buffer> <silent> D    :<C-u>exe "vertical resize ".(<SID>linechars('.\{-\}\ze\d\ze\s\+\d\+)')+1-v:count)<CR>
+        redraw
+        syncbind
+      endif
+    finally
+      if exists('l:dir')
+        execute cd.'`=dir`'
+      endif
+    endtry
+    return ''
+  catch /^fugitive:/
+    return 'echoerr v:errmsg'
+  endtry
+endfunction
+
+function! s:BlameCommit(cmd) abort
+  let cmd = s:Edit(a:cmd, 0, matchstr(getline('.'),'\x\+'))
+  if cmd =~# '^echoerr'
+    return cmd
+  endif
+  let lnum = matchstr(getline('.'),' \zs\d\+\ze\s\+[([:digit:]]')
+  let path = matchstr(getline('.'),'^\^\=\x\+\s\+\zs.\{-\}\ze\s*\d\+ ')
+  if path ==# ''
+    let path = s:buffer(b:fugitive_blamed_bufnr).path()
+  endif
+  execute cmd
+  if search('^diff .* b/\M'.escape(path,'\').'$','W')
+    call search('^+++')
+    let head = line('.')
+    while search('^@@ \|^diff ') && getline('.') =~# '^@@ '
+      let top = +matchstr(getline('.'),' +\zs\d\+')
+      let len = +matchstr(getline('.'),' +\d\+,\zs\d\+')
+      if lnum >= top && lnum <= top + len
+        let offset = lnum - top
+        if &scrolloff
+          +
+          normal! zt
+        else
+          normal! zt
+          +
+        endif
+        while offset > 0 && line('.') < line('$')
+          +
+          if getline('.') =~# '^[ +]'
+            let offset -= 1
+          endif
+        endwhile
+        return 'normal! zv'
+      endif
+    endwhile
+    execute head
+    normal! zt
+  endif
+  return ''
+endfunction
+
+function! s:BlameJump(suffix) abort
+  let commit = matchstr(getline('.'),'^\^\=\zs\x\+')
+  if commit =~# '^0\+$'
+    let commit = ':0'
+  endif
+  let lnum = matchstr(getline('.'),' \zs\d\+\ze\s\+[([:digit:]]')
+  let path = matchstr(getline('.'),'^\^\=\x\+\s\+\zs.\{-\}\ze\s*\d\+ ')
+  if path ==# ''
+    let path = s:buffer(b:fugitive_blamed_bufnr).path()
+  endif
+  let args = b:fugitive_blame_arguments
+  let offset = line('.') - line('w0')
+  let bufnr = bufnr('%')
+  let winnr = bufwinnr(b:fugitive_blamed_bufnr)
+  if winnr > 0
+    exe winnr.'wincmd w'
+  endif
+  execute s:Edit('edit', 0, commit.a:suffix.':'.path)
+  execute lnum
+  if winnr > 0
+    exe bufnr.'bdelete'
+  endif
+  execute 'Gblame '.args
+  execute lnum
+  let delta = line('.') - line('w0') - offset
+  if delta > 0
+    execute 'normal! '.delta."\<C-E>"
+  elseif delta < 0
+    execute 'normal! '.(-delta)."\<C-Y>"
+  endif
+  syncbind
+  return ''
+endfunction
+
+function! s:BlameSyntax() abort
+  let b:current_syntax = 'fugitiveblame'
+  let conceal = has('conceal') ? ' conceal' : ''
+  let arg = exists('b:fugitive_blame_arguments') ? b:fugitive_blame_arguments : ''
+  syn match FugitiveblameBoundary "^\^"
+  syn match FugitiveblameBlank                      "^\s\+\s\@=" nextgroup=FugitiveblameAnnotation,fugitiveblameOriginalFile,FugitiveblameOriginalLineNumber skipwhite
+  syn match FugitiveblameHash       "\%(^\^\=\)\@<=\x\{7,40\}\>" nextgroup=FugitiveblameAnnotation,FugitiveblameOriginalLineNumber,fugitiveblameOriginalFile skipwhite
+  syn match FugitiveblameUncommitted "\%(^\^\=\)\@<=0\{7,40\}\>" nextgroup=FugitiveblameAnnotation,FugitiveblameOriginalLineNumber,fugitiveblameOriginalFile skipwhite
+  syn region FugitiveblameAnnotation matchgroup=FugitiveblameDelimiter start="(" end="\%( \d\+\)\@<=)" contained keepend oneline
+  syn match FugitiveblameTime "[0-9:/+-][0-9:/+ -]*[0-9:/+-]\%( \+\d\+)\)\@=" contained containedin=FugitiveblameAnnotation
+  exec 'syn match FugitiveblameLineNumber         " *\d\+)\@=" contained containedin=FugitiveblameAnnotation'.conceal
+  exec 'syn match FugitiveblameOriginalFile       " \%(\f\+\D\@<=\|\D\@=\f\+\)\%(\%(\s\+\d\+\)\=\s\%((\|\s*\d\+)\)\)\@=" contained nextgroup=FugitiveblameOriginalLineNumber,FugitiveblameAnnotation skipwhite'.(arg =~# 'f' ? '' : conceal)
+  exec 'syn match FugitiveblameOriginalLineNumber " *\d\+\%(\s(\)\@=" contained nextgroup=FugitiveblameAnnotation skipwhite'.(arg =~# 'n' ? '' : conceal)
+  exec 'syn match FugitiveblameOriginalLineNumber " *\d\+\%(\s\+\d\+)\)\@=" contained nextgroup=FugitiveblameShort skipwhite'.(arg =~# 'n' ? '' : conceal)
+  syn match FugitiveblameShort              " \d\+)" contained contains=FugitiveblameLineNumber
+  syn match FugitiveblameNotCommittedYet "(\@<=Not Committed Yet\>" contained containedin=FugitiveblameAnnotation
+  hi def link FugitiveblameBoundary           Keyword
+  hi def link FugitiveblameHash               Identifier
+  hi def link FugitiveblameUncommitted        Function
+  hi def link FugitiveblameTime               PreProc
+  hi def link FugitiveblameLineNumber         Number
+  hi def link FugitiveblameOriginalFile       String
+  hi def link FugitiveblameOriginalLineNumber Float
+  hi def link FugitiveblameShort              FugitiveblameDelimiter
+  hi def link FugitiveblameDelimiter          Delimiter
+  hi def link FugitiveblameNotCommittedYet    Comment
+endfunction
+
+" Section: Gbrowse
+
+call s:command("-bar -bang -range -nargs=* -complete=customlist,s:EditComplete Gbrowse :execute s:Browse(<bang>0,<line1>,<count>,<f-args>)")
+
+function! s:Browse(bang,line1,count,...) abort
+  try
+    let rev = a:0 ? substitute(join(a:000, ' '),'@[[:alnum:]_-]*\%(://.\{-\}\)\=$','','') : ''
+    if rev ==# ''
+      let expanded = s:buffer().rev()
+    elseif rev ==# ':'
+      let expanded = s:buffer().path('/')
+    else
+      let expanded = s:buffer().expand(rev)
+    endif
+    let full = s:repo().translate(expanded)
+    let commit = ''
+    if full =~# '^fugitive://'
+      let commit = matchstr(full,'://.*//\zs\w\+')
+      let path = matchstr(full,'://.*//\w\+\zs/.*')
+      if commit =~ '..'
+        let type = s:repo().git_chomp('cat-file','-t',commit.s:sub(path,'^/',':'))
+      else
+        let type = 'blob'
+      endif
+      let path = path[1:-1]
+    elseif s:repo().bare()
+      let path = '.git/' . full[strlen(s:repo().dir())+1:-1]
+      let type = ''
+    else
+      let path = full[strlen(s:repo().tree())+1:-1]
+      if path =~# '^\.git/'
+        let type = ''
+      elseif isdirectory(full)
+        let type = 'tree'
+      else
+        let type = 'blob'
+      endif
+    endif
+    if path =~# '^\.git/.*HEAD' && filereadable(s:repo().dir(path[5:-1]))
+      let body = readfile(s:repo().dir(path[5:-1]))[0]
+      if body =~# '^\x\{40\}$'
+        let commit = body
+        let type = 'commit'
+        let path = ''
+      elseif body =~# '^ref: refs/'
+        let path = '.git/' . matchstr(body,'ref: \zs.*')
+      endif
+    endif
+
+    if a:0 && join(a:000, ' ') =~# '@[[:alnum:]_-]*\%(://.\{-\}\)\=$'
+      let remote = matchstr(join(a:000, ' '),'@\zs[[:alnum:]_-]\+\%(://.\{-\}\)\=$')
+    elseif path =~# '^\.git/refs/remotes/.'
+      let remote = matchstr(path,'^\.git/refs/remotes/\zs[^/]\+')
+    else
+      let remote = 'origin'
+      let branch = matchstr(rev,'^[[:alnum:]/._-]\+\ze[:^~@]')
+      if branch ==# '' && path =~# '^\.git/refs/\w\+/'
+        let branch = s:sub(path,'^\.git/refs/\w+/','')
+      endif
+      if filereadable(s:repo().dir('refs/remotes/'.branch))
+        let remote = matchstr(branch,'[^/]\+')
+        let rev = rev[strlen(remote)+1:-1]
+      else
+        if branch ==# ''
+          let branch = matchstr(s:repo().head_ref(),'\<refs/heads/\zs.*')
+        endif
+        if branch != ''
+          let remote = s:repo().git_chomp('config','branch.'.branch.'.remote')
+          if remote =~# '^\.\=$'
+            let remote = 'origin'
+          elseif rev[0:strlen(branch)-1] ==# branch && rev[strlen(branch)] =~# '[:^~@]'
+            let rev = s:repo().git_chomp('config','branch.'.branch.'.merge')[11:-1] . rev[strlen(branch):-1]
+          endif
+        endif
+      endif
+    endif
+
+    let raw = s:repo().git_chomp('config','remote.'.remote.'.url')
+    if raw ==# ''
+      let raw = remote
+    endif
+
+    let url = s:github_url(s:repo(),raw,rev,commit,path,type,a:line1,a:count)
+    if url == ''
+      let url = s:instaweb_url(s:repo(),rev,commit,path,type,a:count > 0 ? a:line1 : 0)
+    endif
+
+    if url == ''
+      call s:throw("Instaweb failed to start and '".remote."' is not a GitHub remote")
+    endif
+
+    if a:bang
+      let @* = url
+      return 'echomsg '.string(url)
+    else
+      return 'echomsg '.string(url).'|call netrw#NetrwBrowseX('.string(url).', 0)'
+    endif
+  catch /^fugitive:/
+    return 'echoerr v:errmsg'
+  endtry
+endfunction
+
+function! s:github_url(repo,url,rev,commit,path,type,line1,line2) abort
+  let path = a:path
+  let domain_pattern = 'github\.com'
+  let domains = exists('g:fugitive_github_domains') ? g:fugitive_github_domains : []
+  for domain in domains
+    let domain_pattern .= '\|' . escape(split(domain, '://')[-1], '.')
+  endfor
+  let repo = matchstr(a:url,'^\%(https\=://\|git://\|git@\)\=\zs\('.domain_pattern.'\)[/:].\{-\}\ze\%(\.git\)\=$')
+  if repo ==# ''
+    return ''
+  endif
+  if index(domains, 'http://' . matchstr(repo, '^[^:/]*')) >= 0
+    let root = 'http://' . s:sub(repo,':','/')
+  else
+    let root = 'https://' . s:sub(repo,':','/')
+  endif
+  if path =~# '^\.git/refs/heads/'
+    let branch = a:repo.git_chomp('config','branch.'.path[16:-1].'.merge')[11:-1]
+    if branch ==# ''
+      return root . '/commits/' . path[16:-1]
+    else
+      return root . '/commits/' . branch
+    endif
+  elseif path =~# '^\.git/refs/.'
+    return root . '/commits/' . matchstr(path,'[^/]\+$')
+  elseif path =~# '.git/\%(config$\|hooks\>\)'
+    return root . '/admin'
+  elseif path =~# '^\.git\>'
+    return root
+  endif
+  if a:rev =~# '^[[:alnum:]._-]\+:'
+    let commit = matchstr(a:rev,'^[^:]*')
+  elseif a:commit =~# '^\d\=$'
+    let local = matchstr(a:repo.head_ref(),'\<refs/heads/\zs.*')
+    let commit = a:repo.git_chomp('config','branch.'.local.'.merge')[11:-1]
+    if commit ==# ''
+      let commit = local
+    endif
+  else
+    let commit = a:commit
+  endif
+  if a:type == 'tree'
+    let url = s:sub(root . '/tree/' . commit . '/' . path,'/$','')
+  elseif a:type == 'blob'
+    let url = root . '/blob/' . commit . '/' . path
+    if a:line2 > 0 && a:line1 == a:line2
+      let url .= '#L' . a:line1
+    elseif a:line2 > 0
+      let url .= '#L' . a:line1 . '-' . a:line2
+    endif
+  elseif a:type == 'tag'
+    let commit = matchstr(getline(3),'^tag \zs.*')
+    let url = root . '/tree/' . commit
+  else
+    let url = root . '/commit/' . commit
+  endif
+  return url
+endfunction
+
+function! s:instaweb_url(repo,rev,commit,path,type,...) abort
+  let output = a:repo.git_chomp('instaweb','-b','unknown')
+  if output =~# 'http://'
+    let root = matchstr(output,'http://.*').'/?p='.fnamemodify(a:repo.dir(),':t')
+  else
+    return ''
+  endif
+  if a:path =~# '^\.git/refs/.'
+    return root . ';a=shortlog;h=' . matchstr(a:path,'^\.git/\zs.*')
+  elseif a:path =~# '^\.git\>'
+    return root
+  endif
+  let url = root
+  if a:commit =~# '^\x\{40\}$'
+    if a:type ==# 'commit'
+      let url .= ';a=commit'
+    endif
+    let url .= ';h=' . a:repo.rev_parse(a:commit . (a:path == '' ? '' : ':' . a:path))
+  else
+    if a:type ==# 'blob'
+      let tmp = tempname()
+      silent execute 'write !'.a:repo.git_command('hash-object','-w','--stdin').' > '.tmp
+      let url .= ';h=' . readfile(tmp)[0]
+    else
+      try
+        let url .= ';h=' . a:repo.rev_parse((a:commit == '' ? 'HEAD' : ':' . a:commit) . ':' . a:path)
+      catch /^fugitive:/
+        call s:throw('fugitive: cannot browse uncommitted file')
+      endtry
+    endif
+    let root .= ';hb=' . matchstr(a:repo.head_ref(),'[^ ]\+$')
+  endif
+  if a:path !=# ''
+    let url .= ';f=' . a:path
+  endif
+  if a:0 && a:1
+    let url .= '#l' . a:1
+  endif
+  return url
+endfunction
+
+" Section: File access
+
+function! s:ReplaceCmd(cmd,...) abort
+  let fn = expand('%:p')
+  let tmp = tempname()
+  let prefix = ''
+  try
+    if a:0 && a:1 != ''
+      if s:winshell()
+        let old_index = $GIT_INDEX_FILE
+        let $GIT_INDEX_FILE = a:1
+      else
+        let prefix = 'env GIT_INDEX_FILE='.s:shellesc(a:1).' '
+      endif
+    endif
+    if s:winshell()
+      let cmd_escape_char = &shellxquote == '(' ?  '^' : '^^^'
+      call system('cmd /c "'.prefix.s:gsub(a:cmd,'[<>]', cmd_escape_char.'&').' > '.tmp.'"')
+    else
+      call system(' ('.prefix.a:cmd.' > '.tmp.') ')
+    endif
+  finally
+    if exists('old_index')
+      let $GIT_INDEX_FILE = old_index
+    endif
+  endtry
+  silent exe 'keepalt file '.tmp
+  try
+    silent edit!
+  finally
+    try
+      silent exe 'keepalt file '.s:fnameescape(fn)
+    catch /^Vim\%((\a\+)\)\=:E302/
+    endtry
+    call delete(tmp)
+    if fnamemodify(bufname('$'), ':p') ==# tmp
+      silent execute 'bwipeout '.bufnr('$')
+    endif
+    silent exe 'doau BufReadPost '.s:fnameescape(fn)
+  endtry
+endfunction
+
+function! s:BufReadIndex() abort
+  if !exists('b:fugitive_display_format')
+    let b:fugitive_display_format = filereadable(expand('%').'.lock')
+  endif
+  let b:fugitive_display_format = b:fugitive_display_format % 2
+  let b:fugitive_type = 'index'
+  try
+    let b:git_dir = s:repo().dir()
+    setlocal noro ma nomodeline
+    if fnamemodify($GIT_INDEX_FILE !=# '' ? $GIT_INDEX_FILE : b:git_dir . '/index', ':p') ==# expand('%:p')
+      let index = ''
+    else
+      let index = expand('%:p')
+    endif
+    if b:fugitive_display_format
+      call s:ReplaceCmd(s:repo().git_command('ls-files','--stage'),index)
+      set ft=git nospell
+    else
+      let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd ' : 'cd '
+      let dir = getcwd()
+      if fugitive#git_version() =~# '^0\|^1\.[1-7]\.'
+        let cmd = s:repo().git_command('status')
+      else
+        let cmd = s:repo().git_command(
+              \ '-c', 'status.displayCommentPrefix=true',
+              \ '-c', 'color.status=false',
+              \ '-c', 'status.short=false',
+              \ 'status')
+      endif
+      try
+        execute cd.'`=s:repo().tree()`'
+        call s:ReplaceCmd(cmd, index)
+      finally
+        execute cd.'`=dir`'
+      endtry
+      set ft=gitcommit
+      set foldtext=fugitive#foldtext()
+    endif
+    setlocal ro noma nomod noswapfile
+    if &bufhidden ==# ''
+      setlocal bufhidden=delete
+    endif
+    call s:JumpInit()
+    nunmap   <buffer>          P
+    nunmap   <buffer>          ~
+    nnoremap <buffer> <silent> <C-N> :<C-U>execute <SID>StageNext(v:count1)<CR>
+    nnoremap <buffer> <silent> <C-P> :<C-U>execute <SID>StagePrevious(v:count1)<CR>
+    nnoremap <buffer> <silent> - :<C-U>silent execute <SID>StageToggle(line('.'),line('.')+v:count1-1)<CR>
+    xnoremap <buffer> <silent> - :<C-U>silent execute <SID>StageToggle(line("'<"),line("'>"))<CR>
+    nnoremap <buffer> <silent> a :<C-U>let b:fugitive_display_format += 1<Bar>exe <SID>BufReadIndex()<CR>
+    nnoremap <buffer> <silent> i :<C-U>let b:fugitive_display_format -= 1<Bar>exe <SID>BufReadIndex()<CR>
+    nnoremap <buffer> <silent> C :<C-U>Gcommit<CR>
+    nnoremap <buffer> <silent> cA :<C-U>Gcommit --amend --reuse-message=HEAD<CR>
+    nnoremap <buffer> <silent> ca :<C-U>Gcommit --amend<CR>
+    nnoremap <buffer> <silent> cc :<C-U>Gcommit<CR>
+    nnoremap <buffer> <silent> cva :<C-U>Gcommit --amend --verbose<CR>
+    nnoremap <buffer> <silent> cvc :<C-U>Gcommit --verbose<CR>
+    nnoremap <buffer> <silent> D :<C-U>execute <SID>StageDiff('Gdiff')<CR>
+    nnoremap <buffer> <silent> dd :<C-U>execute <SID>StageDiff('Gdiff')<CR>
+    nnoremap <buffer> <silent> dh :<C-U>execute <SID>StageDiff('Gsdiff')<CR>
+    nnoremap <buffer> <silent> ds :<C-U>execute <SID>StageDiff('Gsdiff')<CR>
+    nnoremap <buffer> <silent> dp :<C-U>execute <SID>StageDiffEdit()<CR>
+    nnoremap <buffer> <silent> dv :<C-U>execute <SID>StageDiff('Gvdiff')<CR>
+    nnoremap <buffer> <silent> p :<C-U>execute <SID>StagePatch(line('.'),line('.')+v:count1-1)<CR>
+    xnoremap <buffer> <silent> p :<C-U>execute <SID>StagePatch(line("'<"),line("'>"))<CR>
+    nnoremap <buffer> <silent> q :<C-U>if bufnr('$') == 1<Bar>quit<Bar>else<Bar>bdelete<Bar>endif<CR>
+    nnoremap <buffer> <silent> r :<C-U>edit<CR>
+    nnoremap <buffer> <silent> R :<C-U>edit<CR>
+    nnoremap <buffer> <silent> U :<C-U>execute <SID>StageUndo()<CR>
+    nnoremap <buffer> <silent> g?   :help fugitive-:Gstatus<CR>
+    nnoremap <buffer> <silent> <F1> :help fugitive-:Gstatus<CR>
+  catch /^fugitive:/
+    return 'echoerr v:errmsg'
+  endtry
+endfunction
+
+function! s:FileRead() abort
+  try
+    let repo = s:repo(fugitive#extract_git_dir(expand('<amatch>')))
+    let path = s:sub(s:sub(matchstr(expand('<amatch>'),'fugitive://.\{-\}//\zs.*'),'/',':'),'^\d:',':&')
+    let hash = repo.rev_parse(path)
+    if path =~ '^:'
+      let type = 'blob'
+    else
+      let type = repo.git_chomp('cat-file','-t',hash)
+    endif
+    " TODO: use count, if possible
+    return "read !".escape(repo.git_command('cat-file',type,hash),'%#\')
+  catch /^fugitive:/
+    return 'echoerr v:errmsg'
+  endtry
+endfunction
+
+function! s:BufReadIndexFile() abort
+  try
+    let b:fugitive_type = 'blob'
+    let b:git_dir = s:repo().dir()
+    try
+      call s:ReplaceCmd(s:repo().git_command('cat-file','blob',s:buffer().sha1()))
+    finally
+      if &bufhidden ==# ''
+        setlocal bufhidden=delete
+      endif
+      setlocal noswapfile
+    endtry
+    return ''
+  catch /^fugitive: rev-parse/
+    silent exe 'doau BufNewFile '.s:fnameescape(expand('%:p'))
+    return ''
+  catch /^fugitive:/
+    return 'echoerr v:errmsg'
+  endtry
+endfunction
+
+function! s:BufWriteIndexFile() abort
+  let tmp = tempname()
+  try
+    let path = matchstr(expand('<amatch>'),'//\d/\zs.*')
+    let stage = matchstr(expand('<amatch>'),'//\zs\d')
+    silent execute 'write !'.s:repo().git_command('hash-object','-w','--stdin').' > '.tmp
+    let sha1 = readfile(tmp)[0]
+    let old_mode = matchstr(s:repo().git_chomp('ls-files','--stage',path),'^\d\+')
+    if old_mode == ''
+      let old_mode = executable(s:repo().tree(path)) ? '100755' : '100644'
+    endif
+    let info = old_mode.' '.sha1.' '.stage."\t".path
+    call writefile([info],tmp)
+    if s:winshell()
+      let error = system('type '.s:gsub(tmp,'/','\\').'|'.s:repo().git_command('update-index','--index-info'))
+    else
+      let error = system(s:repo().git_command('update-index','--index-info').' < '.tmp)
+    endif
+    if v:shell_error == 0
+      setlocal nomodified
+      silent execute 'doautocmd BufWritePost '.s:fnameescape(expand('%:p'))
+      call fugitive#reload_status()
+      return ''
+    else
+      return 'echoerr '.string('fugitive: '.error)
+    endif
+  finally
+    call delete(tmp)
+  endtry
+endfunction
+
+function! s:BufReadObject() abort
+  try
+    setlocal noro ma
+    let b:git_dir = s:repo().dir()
+    let hash = s:buffer().sha1()
+    if !exists("b:fugitive_type")
+      let b:fugitive_type = s:repo().git_chomp('cat-file','-t',hash)
+    endif
+    if b:fugitive_type !~# '^\%(tag\|commit\|tree\|blob\)$'
+      return "echoerr 'fugitive: unrecognized git type'"
+    endif
+    let firstline = getline('.')
+    if !exists('b:fugitive_display_format') && b:fugitive_type != 'blob'
+      let b:fugitive_display_format = +getbufvar('#','fugitive_display_format')
+    endif
+
+    if b:fugitive_type !=# 'blob'
+      setlocal nomodeline
+    endif
+
+    let pos = getpos('.')
+    silent keepjumps %delete_
+    setlocal endofline
+
+    try
+      if b:fugitive_type ==# 'tree'
+        let b:fugitive_display_format = b:fugitive_display_format % 2
+        if b:fugitive_display_format
+          call s:ReplaceCmd(s:repo().git_command('ls-tree',hash))
+        else
+          call s:ReplaceCmd(s:repo().git_command('show','--no-color',hash))
+        endif
+      elseif b:fugitive_type ==# 'tag'
+        let b:fugitive_display_format = b:fugitive_display_format % 2
+        if b:fugitive_display_format
+          call s:ReplaceCmd(s:repo().git_command('cat-file',b:fugitive_type,hash))
+        else
+          call s:ReplaceCmd(s:repo().git_command('cat-file','-p',hash))
+        endif
+      elseif b:fugitive_type ==# 'commit'
+        let b:fugitive_display_format = b:fugitive_display_format % 2
+        if b:fugitive_display_format
+          call s:ReplaceCmd(s:repo().git_command('cat-file',b:fugitive_type,hash))
+        else
+          call s:ReplaceCmd(s:repo().git_command('show','--no-color','--pretty=format:tree %T%nparent %P%nauthor %an <%ae> %ad%ncommitter %cn <%ce> %cd%nencoding %e%n%n%s%n%n%b',hash))
+          keepjumps call search('^parent ')
+          if getline('.') ==# 'parent '
+            silent keepjumps delete_
+          else
+            silent keepjumps s/\%(^parent\)\@<! /\rparent /ge
+          endif
+          keepjumps let lnum = search('^encoding \%(<unknown>\)\=$','W',line('.')+3)
+          if lnum
+            silent keepjumps delete_
+          end
+          keepjumps 1
+        endif
+      elseif b:fugitive_type ==# 'blob'
+        call s:ReplaceCmd(s:repo().git_command('cat-file',b:fugitive_type,hash))
+        setlocal nomodeline
+      endif
+    finally
+      keepjumps call setpos('.',pos)
+      setlocal ro noma nomod noswapfile
+      if &bufhidden ==# ''
+        setlocal bufhidden=delete
+      endif
+      if b:fugitive_type !=# 'blob'
+        setlocal filetype=git foldmethod=syntax
+        nnoremap <buffer> <silent> a :<C-U>let b:fugitive_display_format += v:count1<Bar>exe <SID>BufReadObject()<CR>
+        nnoremap <buffer> <silent> i :<C-U>let b:fugitive_display_format -= v:count1<Bar>exe <SID>BufReadObject()<CR>
+      else
+        call s:JumpInit()
+      endif
+    endtry
+
+    return ''
+  catch /^fugitive:/
+    return 'echoerr v:errmsg'
+  endtry
+endfunction
+
+augroup fugitive_files
+  autocmd!
+  autocmd BufReadCmd  index{,.lock}
+        \ if fugitive#is_git_dir(expand('<amatch>:p:h')) |
+        \   exe s:BufReadIndex() |
+        \ elseif filereadable(expand('<amatch>')) |
+        \   read <amatch> |
+        \   1delete |
+        \ endif
+  autocmd FileReadCmd fugitive://**//[0-3]/**          exe s:FileRead()
+  autocmd BufReadCmd  fugitive://**//[0-3]/**          exe s:BufReadIndexFile()
+  autocmd BufWriteCmd fugitive://**//[0-3]/**          exe s:BufWriteIndexFile()
+  autocmd BufReadCmd  fugitive://**//[0-9a-f][0-9a-f]* exe s:BufReadObject()
+  autocmd FileReadCmd fugitive://**//[0-9a-f][0-9a-f]* exe s:FileRead()
+  autocmd FileType git
+        \ if exists('b:git_dir') |
+        \  call s:JumpInit() |
+        \ endif
+augroup END
+
+" Section: Temp files
+
+if !exists('s:temp_files')
+  let s:temp_files = {}
+endif
+
+augroup fugitive_temp
+  autocmd!
+  autocmd BufNewFile,BufReadPost *
+        \ if has_key(s:temp_files,tolower(expand('<afile>:p'))) |
+        \   let b:git_dir = s:temp_files[tolower(expand('<afile>:p'))].dir |
+        \   let b:git_type = 'temp' |
+        \   let b:git_args = s:temp_files[tolower(expand('<afile>:p'))].args |
+        \   call fugitive#detect(expand('<afile>:p')) |
+        \   setlocal bufhidden=delete |
+        \   nnoremap <buffer> <silent> q    :<C-U>bdelete<CR>|
+        \ endif
+augroup END
+
+" Section: Go to file
+
+function! s:JumpInit() abort
+  nnoremap <buffer> <silent> <CR>    :<C-U>exe <SID>GF("edit")<CR>
+  if !&modifiable
+    nnoremap <buffer> <silent> o     :<C-U>exe <SID>GF("split")<CR>
+    nnoremap <buffer> <silent> S     :<C-U>exe <SID>GF("vsplit")<CR>
+    nnoremap <buffer> <silent> O     :<C-U>exe <SID>GF("tabedit")<CR>
+    nnoremap <buffer> <silent> -     :<C-U>exe <SID>Edit('edit',0,<SID>buffer().up(v:count1))<Bar> if fugitive#buffer().type('tree')<Bar>call search('^'.escape(expand('#:t'),'.*[]~\').'/\=$','wc')<Bar>endif<CR>
+    nnoremap <buffer> <silent> P     :<C-U>exe <SID>Edit('edit',0,<SID>buffer().commit().'^'.v:count1.<SID>buffer().path(':'))<CR>
+    nnoremap <buffer> <silent> ~     :<C-U>exe <SID>Edit('edit',0,<SID>buffer().commit().'~'.v:count1.<SID>buffer().path(':'))<CR>
+    nnoremap <buffer> <silent> C     :<C-U>exe <SID>Edit('edit',0,<SID>buffer().containing_commit())<CR>
+    nnoremap <buffer> <silent> cc    :<C-U>exe <SID>Edit('edit',0,<SID>buffer().containing_commit())<CR>
+    nnoremap <buffer> <silent> co    :<C-U>exe <SID>Edit('split',0,<SID>buffer().containing_commit())<CR>
+    nnoremap <buffer> <silent> cS    :<C-U>exe <SID>Edit('vsplit',0,<SID>buffer().containing_commit())<CR>
+    nnoremap <buffer> <silent> cO    :<C-U>exe <SID>Edit('tabedit',0,<SID>buffer().containing_commit())<CR>
+    nnoremap <buffer> <silent> cP    :<C-U>exe <SID>Edit('pedit',0,<SID>buffer().containing_commit())<CR>
+    nnoremap <buffer>          .     : <C-R>=fnameescape(<SID>recall())<CR><Home>
+  endif
+endfunction
+
+function! s:GF(mode) abort
+  try
+    let buffer = s:buffer()
+    let myhash = buffer.sha1()
+    if myhash ==# '' && getline(1) =~# '^\%(commit\|tag\) \w'
+      let myhash = matchstr(getline(1),'^\w\+ \zs\S\+')
+    endif
+
+    if buffer.type('tree')
+      let showtree = (getline(1) =~# '^tree ' && getline(2) == "")
+      if showtree && line('.') == 1
+        return ""
+      elseif showtree && line('.') > 2
+        return s:Edit(a:mode,0,buffer.commit().':'.s:buffer().path().(buffer.path() =~# '^$\|/$' ? '' : '/').s:sub(getline('.'),'/$',''))
+      elseif getline('.') =~# '^\d\{6\} \l\{3,8\} \x\{40\}\t'
+        return s:Edit(a:mode,0,buffer.commit().':'.s:buffer().path().(buffer.path() =~# '^$\|/$' ? '' : '/').s:sub(matchstr(getline('.'),'\t\zs.*'),'/$',''))
+      endif
+
+    elseif buffer.type('blob')
+      let ref = expand("<cfile>")
+      try
+        let sha1 = buffer.repo().rev_parse(ref)
+      catch /^fugitive:/
+      endtry
+      if exists('sha1')
+        return s:Edit(a:mode,0,ref)
+      endif
+
+    else
+
+      " Index
+      if getline('.') =~# '^\d\{6\} \x\{40\} \d\t'
+        let ref = matchstr(getline('.'),'\x\{40\}')
+        let file = ':'.s:sub(matchstr(getline('.'),'\d\t.*'),'\t',':')
+        return s:Edit(a:mode,0,file)
+
+      elseif getline('.') =~# '^#\trenamed:.* -> '
+        let file = '/'.matchstr(getline('.'),' -> \zs.*')
+        return s:Edit(a:mode,0,file)
+      elseif getline('.') =~# '^#\t[[:alpha:] ]\+: *.'
+        let file = '/'.matchstr(getline('.'),': *\zs.\{-\}\ze\%( ([^()[:digit:]]\+)\)\=$')
+        return s:Edit(a:mode,0,file)
+      elseif getline('.') =~# '^#\t.'
+        let file = '/'.matchstr(getline('.'),'#\t\zs.*')
+        return s:Edit(a:mode,0,file)
+      elseif getline('.') =~# ': needs merge$'
+        let file = '/'.matchstr(getline('.'),'.*\ze: needs merge$')
+        return s:Edit(a:mode,0,file).'|Gdiff'
+
+      elseif getline('.') ==# '# Not currently on any branch.'
+        return s:Edit(a:mode,0,'HEAD')
+      elseif getline('.') =~# '^# On branch '
+        let file = 'refs/heads/'.getline('.')[12:]
+        return s:Edit(a:mode,0,file)
+      elseif getline('.') =~# "^# Your branch .*'"
+        let file = matchstr(getline('.'),"'\\zs\\S\\+\\ze'")
+        return s:Edit(a:mode,0,file)
+      endif
+
+      let showtree = (getline(1) =~# '^tree ' && getline(2) == "")
+
+      if getline('.') =~# '^ref: '
+        let ref = strpart(getline('.'),5)
+
+      elseif getline('.') =~# '^commit \x\{40\}\>'
+        let ref = matchstr(getline('.'),'\x\{40\}')
+        return s:Edit(a:mode,0,ref)
+
+      elseif getline('.') =~# '^parent \x\{40\}\>'
+        let ref = matchstr(getline('.'),'\x\{40\}')
+        let line = line('.')
+        let parent = 0
+        while getline(line) =~# '^parent '
+          let parent += 1
+          let line -= 1
+        endwhile
+        return s:Edit(a:mode,0,ref)
+
+      elseif getline('.') =~ '^tree \x\{40\}$'
+        let ref = matchstr(getline('.'),'\x\{40\}')
+        if s:repo().rev_parse(myhash.':') == ref
+          let ref = myhash.':'
+        endif
+        return s:Edit(a:mode,0,ref)
+
+      elseif getline('.') =~# '^object \x\{40\}$' && getline(line('.')+1) =~ '^type \%(commit\|tree\|blob\)$'
+        let ref = matchstr(getline('.'),'\x\{40\}')
+        let type = matchstr(getline(line('.')+1),'type \zs.*')
+
+      elseif getline('.') =~# '^\l\{3,8\} '.myhash.'$'
+        return ''
+
+      elseif getline('.') =~# '^\l\{3,8\} \x\{40\}\>'
+        let ref = matchstr(getline('.'),'\x\{40\}')
+        echoerr "warning: unknown context ".matchstr(getline('.'),'^\l*')
+
+      elseif getline('.') =~# '^[+-]\{3\} [ab/]'
+        let ref = getline('.')[4:]
+
+      elseif getline('.') =~# '^[+-]' && search('^@@ -\d\+,\d\+ +\d\+,','bnW')
+        let type = getline('.')[0]
+        let lnum = line('.') - 1
+        let offset = -1
+        while getline(lnum) !~# '^@@ -\d\+,\d\+ +\d\+,'
+          if getline(lnum) =~# '^[ '.type.']'
+            let offset += 1
+          endif
+          let lnum -= 1
+        endwhile
+        let offset += matchstr(getline(lnum), type.'\zs\d\+')
+        let ref = getline(search('^'.type.'\{3\} [ab]/','bnW'))[4:-1]
+        let dcmd = '+'.offset.'|normal! zv'
+        let dref = ''
+
+      elseif getline('.') =~# '^rename from '
+        let ref = 'a/'.getline('.')[12:]
+      elseif getline('.') =~# '^rename to '
+        let ref = 'b/'.getline('.')[10:]
+
+      elseif getline('.') =~# '^diff --git \%(a/.*\|/dev/null\) \%(b/.*\|/dev/null\)'
+        let dref = matchstr(getline('.'),'\Cdiff --git \zs\%(a/.*\|/dev/null\)\ze \%(b/.*\|/dev/null\)')
+        let ref = matchstr(getline('.'),'\Cdiff --git \%(a/.*\|/dev/null\) \zs\%(b/.*\|/dev/null\)')
+        let dcmd = 'Gdiff'
+
+      elseif getline('.') =~# '^index ' && getline(line('.')-1) =~# '^diff --git \%(a/.*\|/dev/null\) \%(b/.*\|/dev/null\)'
+        let line = getline(line('.')-1)
+        let dref = matchstr(line,'\Cdiff --git \zs\%(a/.*\|/dev/null\)\ze \%(b/.*\|/dev/null\)')
+        let ref = matchstr(line,'\Cdiff --git \%(a/.*\|/dev/null\) \zs\%(b/.*\|/dev/null\)')
+        let dcmd = 'Gdiff!'
+
+      elseif line('$') == 1 && getline('.') =~ '^\x\{40\}$'
+        let ref = getline('.')
+
+      elseif expand('<cword>') =~# '^\x\{7,40\}\>'
+        return s:Edit(a:mode,0,expand('<cword>'))
+
+      else
+        let ref = ''
+      endif
+
+      if myhash ==# ''
+        let ref = s:sub(ref,'^a/','HEAD:')
+        let ref = s:sub(ref,'^b/',':0:')
+        if exists('dref')
+          let dref = s:sub(dref,'^a/','HEAD:')
+        endif
+      else
+        let ref = s:sub(ref,'^a/',myhash.'^:')
+        let ref = s:sub(ref,'^b/',myhash.':')
+        if exists('dref')
+          let dref = s:sub(dref,'^a/',myhash.'^:')
+        endif
+      endif
+
+      if ref ==# '/dev/null'
+        " Empty blob
+        let ref = 'e69de29bb2d1d6434b8b29ae775ad8c2e48c5391'
+      endif
+
+      if exists('dref')
+        return s:Edit(a:mode,0,ref) . '|'.dcmd.' '.s:fnameescape(dref)
+      elseif ref != ""
+        return s:Edit(a:mode,0,ref)
+      endif
+
+    endif
+    return ''
+  catch /^fugitive:/
+    return 'echoerr v:errmsg'
+  endtry
+endfunction
+
+" Section: Statusline
+
+function! s:repo_head_ref() dict abort
+  if !filereadable(self.dir('HEAD'))
+    return ''
+  endif
+  return readfile(self.dir('HEAD'))[0]
+endfunction
+
+call s:add_methods('repo',['head_ref'])
+
+function! fugitive#statusline(...) abort
+  if !exists('b:git_dir')
+    return ''
+  endif
+  let status = ''
+  if s:buffer().commit() != ''
+    let status .= ':' . s:buffer().commit()[0:7]
+  endif
+  let status .= '('.fugitive#head(7).')'
+  if &statusline =~# '%[MRHWY]' && &statusline !~# '%[mrhwy]'
+    return ',GIT'.status
+  else
+    return '[Git'.status.']'
+  endif
+endfunction
+
+function! fugitive#head(...) abort
+  if !exists('b:git_dir')
+    return ''
+  endif
+
+  return s:repo().head(a:0 ? a:1 : 0)
+endfunction
+
+" Section: Folding
+
+function! fugitive#foldtext() abort
+  if &foldmethod !=# 'syntax'
+    return foldtext()
+  elseif getline(v:foldstart) =~# '^diff '
+    let [add, remove] = [-1, -1]
+    let filename = ''
+    for lnum in range(v:foldstart, v:foldend)
+      if filename ==# '' && getline(lnum) =~# '^[+-]\{3\} [abciow12]/'
+        let filename = getline(lnum)[6:-1]
+      endif
+      if getline(lnum) =~# '^+'
+        let add += 1
+      elseif getline(lnum) =~# '^-'
+        let remove += 1
+      elseif getline(lnum) =~# '^Binary '
+        let binary = 1
+      endif
+    endfor
+    if filename ==# ''
+      let filename = matchstr(getline(v:foldstart), '^diff .\{-\} a/\zs.*\ze b/')
+    endif
+    if filename ==# ''
+      let filename = getline(v:foldstart)[5:-1]
+    endif
+    if exists('binary')
+      return 'Binary: '.filename
+    else
+      return (add<10&&remove<100?' ':'') . add . '+ ' . (remove<10&&add<100?' ':'') . remove . '- ' . filename
+    endif
+  elseif getline(v:foldstart) =~# '^# .*:$'
+    let lines = getline(v:foldstart, v:foldend)
+    call filter(lines, 'v:val =~# "^#\t"')
+    cal map(lines,'s:sub(v:val, "^#\t%(modified: +|renamed: +)=", "")')
+    cal map(lines,'s:sub(v:val, "^([[:alpha:] ]+): +(.*)", "\\2 (\\1)")')
+    return getline(v:foldstart).' '.join(lines, ', ')
+  endif
+  return foldtext()
+endfunction
+
+augroup fugitive_foldtext
+  autocmd!
+  autocmd User Fugitive
+        \ if &filetype =~# '^git\%(commit\)\=$' && &foldtext ==# 'foldtext()' |
+        \    set foldtext=fugitive#foldtext() |
+        \ endif
+augroup END