Handle .git in file system root

References https://github.com/tpope/vim-fugitive/issues/908

.gitattributes

@@ -1,2 +0,0 @@
-.git* export-ignore
-*.markdown export-ignore

CONTRIBUTING.markdown

@@ -8,14 +8,8 @@ platform issues, and interactions with other plugins.  I end up bisecting a
 lot more than other projects, and thus I'm especially meticulous here about
 maintaining a clean, readable, history.  Squash and force push any requested
 changes to a pull request.  And if your [commit message
-sucks](https://commit.style), I'm not going to accept it.  Period.
-
-If your contribution involves adding a configuration option, you are going to
-need a very compelling justification for it.  Options add a maintenance
-burden, support burden, and documentation bloat, and oftentimes can be
-achieved much more simply with a custom map or autocommand.  If your option
-controls an underlying Git command, ask yourself why Git itself does not offer
-such configuration.
+sucks](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html),
+I'm not going to accept it.  Period.
 
 Beyond that, don't be shy about asking before patching.  What takes you hours
 might take me minutes simply because I have both domain knowledge and a

README.markdown

@@ -20,7 +20,7 @@ changed, or `o` to open it in a split.  When you're done, use `:Gedit`
 in the historic buffer to go back to the work tree version.
 
 `:Gmove` does a `git mv` on a file and simultaneously renames the
-buffer.  `:Gdelete` does a `git rm` on a file and simultaneously deletes
+buffer.  `:Gremove` does a `git rm` on a file and simultaneously deletes
 the buffer.
 
 Use `:Ggrep` to search the work tree (or any arbitrary commit) with
@@ -66,7 +66,7 @@ If you don't have a preferred installation method, one option is to install
 and paste:
 
     cd ~/.vim/bundle
-    git clone https://github.com/tpope/vim-fugitive.git
+    git clone git://github.com/tpope/vim-fugitive.git
     vim -u NONE -c "helptags vim-fugitive/doc" -c q
 
 If your Vim version is below 7.2, I recommend also installing
@@ -75,11 +75,24 @@ other Git niceties.
 
 ## FAQ
 
-> Why don't any of the commands exist?
+> I installed the plugin and started Vim.  Why don't any of the commands
+> exist?
 
-Fugitive cares about the current file, not the current working directory.
-Edit a file from the repository.  To avoid the blank window problem, favor
-commands like `:split` and `:tabedit` over commands like `:new` and `:tabnew`.
+Fugitive cares about the current file, not the current working
+directory.  Edit a file from the repository.
+
+> I opened a new tab.  Why don't any of the commands exist?
+
+Fugitive cares about the current file, not the current working
+directory.  Edit a file from the repository.
+
+> Why is `:Gbrowse` not using the right browser?
+
+`:Gbrowse` delegates to `git web--browse`, which is less than perfect
+when it comes to finding the right browser.  You can tell it the correct
+browser to use with `git config --global web.browser ...`.  On OS X, for
+example, you might want to set this to `open`.  See `git web--browse --help`
+for details.
 
 > Here's a patch that automatically opens the quickfix window after
 > `:Ggrep`.

doc/fugitive.txt

@@ -40,12 +40,10 @@ that are part of Git repositories).
                         <CR>  |:Gedit|
                         -     |:Git| add
                         -     |:Git| reset (staged files)
-                        a     Show alternative format
+                        cA    |:Gcommit| --amend --reuse-message=HEAD
                         ca    |:Gcommit| --amend
                         cc    |:Gcommit|
-                        ce    |:Gcommit| --amend --no-edit
-                        cw    |:Gcommit| --amend --only
-                        cva   |:Gcommit| --verbose --amend
+                        cva   |:Gcommit| --amend --verbose
                         cvc   |:Gcommit| --verbose
                         D     |:Gdiff|
                         ds    |:Gsdiff|
@@ -78,17 +76,17 @@ that are part of Git repositories).
 
                                                 *fugitive-:Gmerge*
 :Gmerge [args]          Calls git-merge and loads errors and conflicted files
-                        into the |quickfix| list.  Opens a |:Gcommit| style
+                        into the quickfix list.  Opens a |:Gcommit| style
                         split window for the commit message if the merge
                         succeeds.  If called during a merge conflict, the
                         conflicted files from the current index are loaded
-                        into the |quickfix| list.
+                        into the quickfix list.
 
                                                 *fugitive-:Gpull*
 :Gpull [args]           Like |:Gmerge|, but for git-pull.
 
                                                 *fugitive-:Gpush*
-:Gpush [args]           Invoke git-push, load the results into the |quickfix|
+:Gpush [args]           Invoke git-push, load the results into the quickfix
                         list, and invoke |:cwindow| to reveal any errors.
                         |:Dispatch| is used if available for asynchronous
                         invocation.
@@ -104,20 +102,20 @@ that are part of Git repositories).
 
                                                 *fugitive-:Glog*
 :Glog [args]            Load all previous revisions of the current file into
-                        the |quickfix| list.  Additional git-log arguments can
+                        the quickfix list.  Additional git-log arguments can
                         be given (for example, --reverse).  If "--" appears as
                         an argument, no file specific filtering is done, and
                         previous commits rather than previous file revisions
                         are loaded.
 
 :{range}Glog [args]     Use git-log -L to load previous revisions of the given
-                        range of the current file into the |quickfix| list.
-                        The cursor is positioned on the first line of the
-                        first diff hunk for each commit.
+                        range of the current file into the quickfix list.  The
+                        cursor is positioned on the first line of the first
+                        diff hunk for each commit.
 
                                                 *fugitive-:Gllog*
 :Gllog [args]           Like |:Glog|, but use the location list instead of the
-                        |quickfix| list.
+                        quickfix list.
 
                                         *fugitive-:Gedit* *fugitive-:Ge*
 :Gedit [revision]       |:edit| a |fugitive-revision|.
@@ -197,23 +195,14 @@ that are part of Git repositories).
 :Gmove {destination}    Wrapper around git-mv that renames the buffer
                         afterward.  The destination is relative to the current
                         directory except when started with a /, in which case
-                        it is relative to the work tree.  (This is a holdover
-                        from before |:Grename| and will be removed.)  Add a !
-                        to pass -f.
+                        it is relative to the work tree.  Add a ! to pass -f.
 
-                                                *fugitive-:Grename*
-:Grename {destination}  Like |:Gmove| but operates relative to the parent
-                        directory of the current file.
-
-                                                *fugitive-:Gdelete*
-:Gdelete                Wrapper around git-rm that deletes the buffer
+                                                *fugitive-:Gremove*
+:Gremove                Wrapper around git-rm that deletes the buffer
                         afterward.  When invoked in an index file, --cached is
                         passed.  Add a ! to pass -f and forcefully discard the
                         buffer.
 
-                                                *fugitive-:Gremove*
-:Gremove                Like :Gdelete, but keep the (now empty) buffer around.
-
                                                 *fugitive-:Gblame*
 :Gblame [flags]         Run git-blame on the file and open the results in a
                         scroll bound vertical split.  You can give any of

plugin/fugitive.vim

@@ -1,6 +1,6 @@
 " fugitive.vim - A Git wrapper so awesome, it should be illegal
 " Maintainer:   Tim Pope <http://tpo.pe/>
-" Version:      2.3
+" Version:      2.2
 " GetLatestVimScripts: 2975 1 :AutoInstall: fugitive.vim
 
 if exists('g:loaded_fugitive') || &cp
@@ -68,15 +68,6 @@ function! s:shellslash(path) abort
   endif
 endfunction
 
-let s:executables = {}
-
-function! s:executable(binary) abort
-  if !has_key(s:executables, a:binary)
-    let s:executables[a:binary] = executable(a:binary)
-  endif
-  return s:executables[a:binary]
-endfunction
-
 let s:git_versions = {}
 
 function! s:git_command() abort
@@ -108,30 +99,6 @@ function! s:recall() abort
   return rev
 endfunction
 
-function! s:map(mode, lhs, rhs, ...) abort
-  let flags = (a:0 ? a:1 : '') . (a:rhs =~# '^<Plug>' ? '' : '<script>')
-  let head = a:lhs
-  let tail = ''
-  let keys = get(g:, a:mode.'remap', {})
-  if type(keys) == type([])
-    return
-  endif
-  while !empty(head)
-    if has_key(keys, head)
-      let head = keys[head]
-      if empty(head)
-        return
-      endif
-      break
-    endif
-    let tail = matchstr(head, '<[^<>]*>$\|.$') . tail
-    let head = substitute(head, '<[^<>]*>$\|.$', '', '')
-  endwhile
-  if flags !~# '<unique>' || empty(mapcheck(head.tail, a:mode))
-    exe a:mode.'map <buffer>' flags head.tail a:rhs
-  endif
-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)
@@ -160,10 +127,6 @@ function! fugitive#is_git_dir(path) abort
         \ getftype(path.'commondir') ==# 'file')
 endfunction
 
-function! FugitiveIsGitDir(path) abort
-  return fugitive#is_git_dir(a:path)
-endfunction
-
 function! fugitive#extract_git_dir(path) abort
   if s:shellslash(a:path) =~# '^fugitive://.*//'
     return matchstr(s:shellslash(a:path), '\C^fugitive://\zs.\{-\}\ze//')
@@ -217,10 +180,6 @@ function! fugitive#extract_git_dir(path) abort
   return ''
 endfunction
 
-function! FugitiveExtractGitDir(path) abort
-  return fugitive#extract_git_dir(a:path)
-endfunction
-
 function! fugitive#detect(path) abort
   if exists('b:git_dir') && (b:git_dir ==# '' || b:git_dir =~# '/$')
     unlet b:git_dir
@@ -244,8 +203,8 @@ function! fugitive#detect(path) abort
       endtry
     endif
     if !exists('g:fugitive_no_maps')
-      call s:map('c', '<C-R><C-G>', 'fnameescape(<SID>recall())', '<expr>')
-      call s:map('n', 'y<C-G>', ':call setreg(v:register, <SID>recall())<CR>', '<silent>')
+      cnoremap <buffer> <expr> <C-R><C-G> fnameescape(<SID>recall())
+      nnoremap <buffer> <silent> y<C-G> :call setreg(v:register, <SID>recall())<CR>
     endif
     let buffer = fugitive#buffer()
     if expand('%:p') =~# '://'
@@ -269,15 +228,11 @@ function! fugitive#detect(path) abort
   endif
 endfunction
 
-function! FugitiveDetect(path) abort
-  return fugitive#detect(a:path)
-endfunction
-
 augroup fugitive
   autocmd!
   autocmd BufNewFile,BufReadPost * call fugitive#detect(expand('%:p'))
   autocmd FileType           netrw call fugitive#detect(expand('%:p'))
-  autocmd User NERDTreeInit,NERDTreeNewRoot call fugitive#detect(b:NERDTree.root.path.str())
+  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')
@@ -445,13 +400,13 @@ function! s:repo_git_chomp(...) dict abort
 endfunction
 
 function! s:repo_git_chomp_in_tree(...) dict abort
-  let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd' : 'cd'
+  let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd ' : 'cd '
   let dir = getcwd()
   try
-    execute cd s:fnameescape(s:repo().tree())
+    execute cd.'`=s:repo().tree()`'
     return call(s:repo().git_chomp, a:000, s:repo())
   finally
-    execute cd s:fnameescape(dir)
+    execute cd.'`=dir`'
   endtry
 endfunction
 
@@ -697,9 +652,7 @@ function! s:buffer_expand(rev) dict abort
   else
     let file = a:rev
   endif
-  return s:sub(substitute(file,
-        \ '%$\|\\\([[:punct:]]\)','\=len(submatch(1)) ? submatch(1) : self.path()','g'),
-        \ '\.\@<=/$','')
+  return s:sub(s:sub(file,'\%$',self.path()),'\.\@<=/$','')
 endfunction
 
 function! s:buffer_containing_commit() dict abort
@@ -743,13 +696,13 @@ call s:add_methods('buffer',['getvar','setvar','getline','repo','type','spec','n
 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 cd = exists('*haslocaldir') && haslocaldir() ? 'lcd ' : 'cd '
   let dir = getcwd()
   try
-    execute cd s:fnameescape(s:repo().tree())
+    execute cd.'`=s:repo().tree()`'
     execute a:cmd
   finally
-    execute cd s:fnameescape(dir)
+    execute cd.'`=dir`'
   endtry
 endfunction
 
@@ -762,7 +715,7 @@ function! s:Git(bang, args) abort
     let git .= ' --no-pager'
   endif
   let args = matchstr(a:args,'\v\C.{-}%($|\\@<!%(\\\\)*\|)@=')
-  if exists(':terminal') && has('nvim')
+  if exists(':terminal')
     let dir = s:repo().tree()
     if expand('%') != ''
       -tabedit %
@@ -803,8 +756,8 @@ function! s:DirComplete(A,L,P) abort
   return matches
 endfunction
 
-call s:command("-bar -bang -nargs=? -complete=customlist,s:DirComplete Gcd  :exe 'cd<bang>'  s:fnameescape(s:repo().bare() ? s:repo().dir(<q-args>) : s:repo().tree(<q-args>))")
-call s:command("-bar -bang -nargs=? -complete=customlist,s:DirComplete Glcd :exe 'lcd<bang>' s:fnameescape(s:repo().bare() ? s:repo().dir(<q-args>) : s:repo().tree(<q-args>))")
+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
 
@@ -862,10 +815,6 @@ function! fugitive#reload_status() abort
   endtry
 endfunction
 
-function! fugitive#ReloadStatus() abort
-  return fugitive#reload_status()
-endfunction
-
 function! s:stage_info(lnum) abort
   let filename = matchstr(getline(a:lnum),'^#\t\zs.\{-\}\ze\%( ([^()[:digit:]]\+)\)\=$')
   let lnum = a:lnum
@@ -1026,14 +975,11 @@ function! s:StageToggle(lnum1,lnum2) abort
         continue
       endif
       execute lnum
-      if section ==# 'staged'
       if filename =~ ' -> '
-          let files_to_unstage = split(filename,' -> ')
-        else
-          let files_to_unstage = [filename]
-        endif
-        let filename = files_to_unstage[-1]
-        let cmd = ['reset','-q','--'] + files_to_unstage
+        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:'
@@ -1104,19 +1050,18 @@ endfunction
 
 " Section: Gcommit
 
-call s:command("-nargs=? -complete=customlist,s:CommitComplete Gcommit :execute s:Commit('<mods>', <q-args>)")
+call s:command("-nargs=? -complete=customlist,s:CommitComplete Gcommit :execute s:Commit(<q-args>)")
 
-function! s:Commit(mods, args, ...) abort
-  let mods = s:gsub(a:mods ==# '<mods>' ? '' : a:mods, '<tab>', '-tab')
+function! s:Commit(args, ...) abort
   let repo = a:0 ? a:1 : s:repo()
-  let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd' : 'cd'
+  let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd ' : 'cd '
   let dir = getcwd()
   let msgfile = repo.dir('COMMIT_EDITMSG')
   let outfile = tempname()
   let errorfile = tempname()
   try
     try
-      execute cd s:fnameescape(repo.tree())
+      execute cd.s:fnameescape(repo.tree())
       if s:winshell()
         let command = ''
         let old_editor = $GIT_EDITOR
@@ -1134,7 +1079,7 @@ function! s:Commit(mods, args, ...) abort
       endif
       let error = v:shell_error
     finally
-      execute cd s:fnameescape(dir)
+      execute cd.'`=dir`'
     endtry
     if !has('gui_running')
       redraw!
@@ -1160,15 +1105,15 @@ function! s:Commit(mods, args, ...) abort
           let args = '--cleanup=strip '.args
         endif
         if bufname('%') == '' && line('$') == 1 && getline(1) == '' && !&mod
-          execute mods 'keepalt edit' s:fnameescape(msgfile)
-        elseif a:args =~# '\%(^\| \)-\w*v' || mods =~# '\<tab\>'
-          execute mods 'keepalt -tabedit' s:fnameescape(msgfile)
+          execute 'keepalt edit '.s:fnameescape(msgfile)
+        elseif a:args =~# '\%(^\| \)-\%(-verbose\|\w*v\)\>'
+          execute 'keepalt -tabedit '.s:fnameescape(msgfile)
         elseif s:buffer().type() ==# 'index'
-          execute mods 'keepalt edit' s:fnameescape(msgfile)
+          execute 'keepalt edit '.s:fnameescape(msgfile)
           execute (search('^#','n')+1).'wincmd+'
           setlocal nopreviewwindow
         else
-          execute mods 'keepalt split' s:fnameescape(msgfile)
+          execute 'keepalt split '.s:fnameescape(msgfile)
         endif
         let b:fugitive_commit_arguments = args
         setlocal bufhidden=wipe filetype=gitcommit
@@ -1176,7 +1121,7 @@ function! s:Commit(mods, args, ...) abort
       elseif error ==# '!'
         return s:Status()
       else
-        call s:throw(empty(error)?join(errors, ' '):error)
+        call s:throw(error)
       endif
     endif
   catch /^fugitive:/
@@ -1204,7 +1149,7 @@ 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, s:repo(getbufvar(+expand('<abuf>'),'git_dir')))
+    return s:Commit(args, s:repo(getbufvar(+expand('<abuf>'),'git_dir')))
   endif
   return ''
 endfunction
@@ -1344,10 +1289,10 @@ call s:command("-bar -bang -nargs=* -range=0 -complete=customlist,s:EditComplete
 function! s:Grep(cmd,bang,arg) abort
   let grepprg = &grepprg
   let grepformat = &grepformat
-  let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd' : 'cd'
+  let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd ' : 'cd '
   let dir = getcwd()
   try
-    execute cd s:fnameescape(s:repo().tree())
+    execute cd.'`=s:repo().tree()`'
     let &grepprg = s:repo().git_command('--no-pager', 'grep', '-n', '--no-color')
     let &grepformat = '%f:%l:%m,%m %f match%ts,%f'
     exe a:cmd.'! '.escape(matchstr(a:arg,'\v\C.{-}%($|[''" ]\@=\|)@='),'|')
@@ -1376,7 +1321,7 @@ function! s:Grep(cmd,bang,arg) abort
   finally
     let &grepprg = grepprg
     let &grepformat = grepformat
-    execute cd s:fnameescape(dir)
+    execute cd.'`=dir`'
   endtry
 endfunction
 
@@ -1404,39 +1349,33 @@ function! s:Log(cmd, line1, line2, ...) abort
   endif
   let grepformat = &grepformat
   let grepprg = &grepprg
-  let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd' : 'cd'
+  let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd ' : 'cd '
   let dir = getcwd()
   try
-    execute cd s:fnameescape(s:repo().tree())
+    execute cd.'`=s:repo().tree()`'
     let &grepprg = escape(call(s:repo().git_command,cmd,s:repo()),'%#')
     let &grepformat = '%Cdiff %.%#,%C--- %.%#,%C+++ %.%#,%Z@@ -%\d%\+\,%\d%\+ +%l\,%\d%\+ @@,%-G-%.%#,%-G+%.%#,%-G %.%#,%A%f::%m,%-G%.%#'
     exe a:cmd
   finally
     let &grepformat = grepformat
     let &grepprg = grepprg
-    execute cd s:fnameescape(dir)
+    execute cd.'`=dir`'
   endtry
 endfunction
 
 " Section: Gedit, Gpedit, Gsplit, Gvsplit, Gtabedit, Gread
 
-function! s:UsableWin(nr) abort
-  return a:nr && !getwinvar(a:nr, '&previewwindow') &&
-        \ index(['nofile','help','quickfix'], getbufvar(winbufnr(a:nr), '&buftype')) < 0
-endfunction
-
 function! s:Edit(cmd,bang,...) abort
   let buffer = s:buffer()
   if a:cmd !~# 'read'
     if &previewwindow && getbufvar('','fugitive_type') ==# 'index'
-      let winnrs = filter([winnr('#')] + range(1, winnr('$')), 's:UsableWin(v:val)')
-      if len(winnrs)
-        exe winnrs[0].'wincmd w'
-      elseif winnr('$') == 1
+      if winnr('$') == 1
         let tabs = (&go =~# 'e' || !has('gui_running')) && &stal && (tabpagenr('$') >= &stal)
         execute 'rightbelow' (&lines - &previewheight - &cmdheight - tabs - 1 - !!&laststatus).'new'
+      elseif winnr('#')
+        wincmd p
       else
-        rightbelow new
+        wincmd w
       endif
       if &diff
         let mywinnr = winnr()
@@ -1449,7 +1388,6 @@ function! s:Edit(cmd,bang,...) abort
             endif
           endif
         endfor
-        diffoff!
       endif
     endif
   endif
@@ -1535,7 +1473,7 @@ call s:command("-bar -bang -nargs=* -complete=customlist,s:EditRunComplete Gpedi
 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=* -range=-1 -complete=customlist,s:EditRunComplete Gread :execute s:Edit((<count> == -1 ? '' : <count>).'read',<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
 
@@ -1861,12 +1799,12 @@ function! s:Diff(vert,keepfocus,...) abort
   elseif (empty(args) || args[0] == ':') && 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' s:fnameescape(fugitive#repo().translate(s:buffer().expand(':2')))
+    execute 'leftabove '.vert.'split `=fugitive#buffer().repo().translate(s:buffer().expand('':2''))`'
     execute 'nnoremap <buffer> <silent> dp :diffput '.nr.'<Bar>diffupdate<CR>'
     let nr2 = bufnr('')
     call s:diffthis()
     wincmd p
-    execute 'rightbelow '.vert.'split' s:fnameescape(fugitive#repo().translate(s:buffer().expand(':3')))
+    execute 'rightbelow '.vert.'split `=fugitive#buffer().repo().translate(s:buffer().expand('':3''))`'
     execute 'nnoremap <buffer> <silent> dp :diffput '.nr.'<Bar>diffupdate<CR>'
     let nr3 = bufnr('')
     call s:diffthis()
@@ -1929,11 +1867,9 @@ endfunction
 
 " Section: Gmove, Gremove
 
-function! s:Move(force, rename, destination) abort
+function! s:Move(force,destination) abort
   if a:destination =~# '^/'
     let destination = a:destination[1:-1]
-  elseif a:rename
-    let destination = fnamemodify(s:buffer().path(), ':h') . '/' . a:destination
   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('')
@@ -1954,7 +1890,7 @@ function! s:Move(force, rename, destination) abort
     let destination = fnamemodify(s:sub(destination,'/$','').'/'.expand('%:t'),':.')
   endif
   call fugitive#reload_status()
-  if empty(s:buffer().commit())
+  if s:buffer().commit() == ''
     if isdirectory(destination)
       return 'keepalt edit '.s:fnameescape(destination)
     else
@@ -1966,25 +1902,16 @@ function! s:Move(force, rename, destination) abort
 endfunction
 
 function! s:MoveComplete(A,L,P) abort
-  if a:A =~# '^/'
+  if a:A =~ '^/'
     return s:repo().superglob(a:A)
   else
     let matches = split(glob(a:A.'*'),"\n")
-    call map(matches,'v:val !~# "/$" && isdirectory(v:val) ? v:val."/" : v:val')
+    call map(matches,'v:val !~ "/$" && isdirectory(v:val) ? v:val."/" : v:val')
     return matches
   endif
 endfunction
 
-function! s:RenameComplete(A,L,P) abort
-  if a:A =~# '^/'
-    return s:repo().superglob(a:A)
-  else
-    let pre = '/'. fnamemodify(s:buffer().path(), ':h') . '/'
-    return map(s:repo().superglob(pre.a:A), 'strpart(v:val, len(pre))')
-  endif
-endfunction
-
-function! s:Remove(after, force) abort
+function! s:Remove(force) abort
   if s:buffer().commit() ==# ''
     let cmd = ['rm']
   elseif s:buffer().commit() ==# '0'
@@ -2002,17 +1929,15 @@ function! s:Remove(after, force) abort
     return 'echoerr '.string(v:errmsg)
   else
     call fugitive#reload_status()
-    return a:after . (a:force ? '!' : '')
+    return 'edit'.(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>0,0,<q-args>)" |
-        \ exe "command! -buffer -bar -bang -nargs=1 -complete=customlist,s:RenameComplete Grename :execute s:Move(<bang>0,1,<q-args>)" |
-        \ exe "command! -buffer -bar -bang Gremove :execute s:Remove('edit',<bang>0)" |
-        \ exe "command! -buffer -bar -bang Gdelete :execute s:Remove('bdelete',<bang>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
 
@@ -2056,12 +1981,12 @@ function! s:Blame(bang,line1,line2,count,args) abort
       let cmd += ['--contents', '-']
     endif
     let cmd += ['--', s:buffer().path()]
-    let basecmd = escape(call(s:repo().git_command,cmd,s:repo()),'!%#')
+    let basecmd = escape(call(s:repo().git_command,cmd,s:repo()),'!')
     try
-      let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd' : 'cd'
+      let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd ' : 'cd '
       if !s:repo().bare()
         let dir = getcwd()
-        execute cd s:fnameescape(s:repo().tree())
+        execute cd.'`=s:repo().tree()`'
       endif
       if a:count
         execute 'write !'.substitute(basecmd,' blame ',' blame -L '.a:line1.','.a:line2.' ','g')
@@ -2074,7 +1999,7 @@ function! s:Blame(bang,line1,line2,count,args) abort
           silent! execute '%write !'.basecmd.' > '.temp.' 2> '.error
         endif
         if exists('l:dir')
-          execute cd s:fnameescape(dir)
+          execute cd.'`=dir`'
           unlet dir
         endif
         if v:shell_error
@@ -2127,6 +2052,7 @@ function! s:Blame(bang,line1,line2,count,args) abort
         if exists('+relativenumber')
           setlocal norelativenumber
         endif
+        let &l:statusline = '%{fugitive#blame_statusline('.bufnr('').')}%<'
         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>
@@ -2147,7 +2073,7 @@ function! s:Blame(bang,line1,line2,count,args) abort
       endif
     finally
       if exists('l:dir')
-        execute cd s:fnameescape(dir)
+        execute cd.'`=dir`'
       endif
     endtry
     return ''
@@ -2241,8 +2167,8 @@ function! s:BlameSyntax() abort
   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 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
@@ -2268,7 +2194,7 @@ function! s:BlameSyntax() abort
       continue
     endif
     let seen[hash] = 1
-    if &t_Co > 16 && get(g:, 'CSApprox_loaded') && !empty(findfile('autoload/csapprox/per_component.vim', escape(&rtp, ' ')))
+    if &t_Co > 16 && exists('g:CSApprox_loaded')
           \ && empty(get(s:hash_colors, hash))
       let [s, r, g, b; __] = map(matchlist(hash, '\(\x\x\)\(\x\x\)\(\x\x\)'), 'str2nr(v:val,16)')
       let color = csapprox#per_component#Approximate(r, g, b)
@@ -2294,12 +2220,29 @@ function! s:RehighlightBlame() abort
   endfor
 endfunction
 
+function! fugitive#blame_statusline(nr) abort
+  if bufnr('%') != a:nr && !getwinvar(0, '&cursorbind')
+    return ''
+  endif
+  let line = getbufline(a:nr, line('.'))[0]
+  let hash = matchstr(line, '^\^\=\zs\x\{7}')
+  if hash =~# '^0*$'
+    return ''
+  endif
+  if type(getbufvar(a:nr, 'fugitive_blame_lookup')) != type({})
+    call setbufvar(a:nr, 'fugitive_blame_lookup', {})
+  endif
+  let lookup = getbufvar(a:nr, 'fugitive_blame_lookup')
+  if !has_key(lookup, hash)
+    let lookup[hash] = s:repo().git_chomp('log', '-1', hash, '--pretty=format:'.g:fugitive_summary_format)
+  endif
+  return get(lookup, hash, '')
+endfunction
+
 " Section: Gbrowse
 
 call s:command("-bar -bang -range=0 -nargs=* -complete=customlist,s:EditComplete Gbrowse :execute s:Browse(<bang>0,<line1>,<count>,<f-args>)")
 
-let s:redirects = {}
-
 function! s:Browse(bang,line1,count,...) abort
   try
     let validremote = '\.\|\.\=/.*\|[[:alnum:]_-]\+\%(://.\{-\}\)\='
@@ -2405,7 +2348,7 @@ function! s:Browse(bang,line1,count,...) abort
     else
       let remote_for_url = remote
     endif
-    if fugitive#git_version() =~# '^[01]\.\|^2\.[0-6]\.'
+    if fugitive#git_version() =~# '^[01]\.|^2\.[0-6]\.'
       let raw = s:repo().git_chomp('config','remote.'.remote_for_url.'.url')
     else
       let raw = s:repo().git_chomp('remote','get-url',remote_for_url)
@@ -2414,17 +2357,6 @@ function! s:Browse(bang,line1,count,...) abort
       let raw = remote
     endif
 
-    if raw =~# '^https\=://' && s:executable('curl')
-      if !has_key(s:redirects, raw)
-        let s:redirects[raw] = matchstr(system('curl -I ' .
-              \ s:shellesc(raw . '/info/refs?service=git-upload-pack')),
-              \ 'Location: \zs\S\+\ze/info/refs?')
-      endif
-      if len(s:redirects[raw])
-        let raw = s:redirects[raw]
-      endif
-    endif
-
     for Handler in g:fugitive_browse_handlers
       let url = call(Handler, [{
             \ 'repo': s:repo(),
@@ -2567,10 +2499,9 @@ function! s:ReplaceCmd(cmd,...) abort
       let $GIT_INDEX_FILE = old_index
     endif
   endtry
-  silent exe 'doau BufReadPre '.s:fnameescape(fn)
   silent exe 'keepalt file '.tmp
   try
-    silent noautocmd edit!
+    silent edit!
   finally
     try
       silent exe 'keepalt file '.s:fnameescape(fn)
@@ -2602,7 +2533,7 @@ function! s:BufReadIndex() abort
       call s:ReplaceCmd(s:repo().git_command('ls-files','--stage'),index)
       set ft=git nospell
     else
-      let cd = exists('*haslocaldir') && haslocaldir() ? 'lcd' : 'cd'
+      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')
@@ -2614,10 +2545,10 @@ function! s:BufReadIndex() abort
               \ 'status')
       endif
       try
-        execute cd s:fnameescape(s:repo().tree())
+        execute cd.'`=s:repo().tree()`'
         call s:ReplaceCmd(cmd, index)
       finally
-        execute cd s:fnameescape(dir)
+        execute cd.'`=dir`'
       endtry
       set ft=gitcommit
       set foldtext=fugitive#foldtext()
@@ -2635,14 +2566,12 @@ function! s:BufReadIndex() abort
     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>:echohl WarningMsg<Bar>echo ':Gstatus C is deprecated in favor of cc'<Bar>echohl NONE<CR>
-    nnoremap <buffer> <silent> cA :<C-U>Gcommit --amend --reuse-message=HEAD<CR>:echohl WarningMsg<Bar>echo ':Gstatus cA is deprecated in favor of ce'<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> ce :<C-U>Gcommit --amend --no-edit<CR>
-    nnoremap <buffer> <silent> cw :<C-U>Gcommit --amend --only<CR>
-    nnoremap <buffer> <silent> cva :<C-U>Gcommit -v --amend<CR>
-    nnoremap <buffer> <silent> cvc :<C-U>Gcommit -v<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>
@@ -2746,6 +2675,7 @@ function! s:BufReadObject() abort
     if b:fugitive_type !~# '^\%(tag\|commit\|tree\|blob\)$'
       return "echoerr ".string("fugitive: unrecognized git type '".b:fugitive_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
@@ -2783,13 +2713,12 @@ function! s:BufReadObject() abort
           if getline('.') ==# 'parent '
             silent keepjumps delete_
           else
-            silent exe 'keepjumps s/\m\C\%(^parent\)\@<! /\rparent /e' . (&gdefault ? '' : 'g')
+            silent keepjumps s/\%(^parent\)\@<! /\rparent /ge
           endif
           keepjumps let lnum = search('^encoding \%(<unknown>\)\=$','W',line('.')+3)
           if lnum
             silent keepjumps delete_
           end
-          silent keepjumps 1,/^diff --git\|\%$/g/\r$/s///
           keepjumps 1
         endif
       elseif b:fugitive_type ==# 'blob'
@@ -2811,8 +2740,6 @@ function! s:BufReadObject() abort
       endif
     endtry
 
-    return ''
-  catch /^fugitive: rev-parse/
     return ''
   catch /^fugitive:/
     return 'echoerr v:errmsg'
@@ -2867,12 +2794,11 @@ augroup END
 nnoremap <SID>: :<C-U><C-R>=v:count ? v:count : ''<CR>
 function! s:GFInit(...) abort
   cnoremap <buffer> <expr> <Plug><cfile> fugitive#cfile()
-  if !exists('g:fugitive_no_maps')
-    call s:map('n', 'gf',          '<SID>:find <Plug><cfile><CR>', '<silent><unique>')
-    call s:map('n', '<C-W>f',     '<SID>:sfind <Plug><cfile><CR>', '<silent><unique>')
-    call s:map('n', '<C-W><C-F>', '<SID>:sfind <Plug><cfile><CR>', '<silent><unique>')
-    call s:map('n', '<C-W>gf',  '<SID>:tabfind <Plug><cfile><CR>', '<silent><unique>')
-    call s:map('c', '<C-R><C-F>', '<Plug><cfile>', '<silent><unique>')
+  if !exists('g:fugitive_no_maps') && empty(mapcheck('gf', 'n'))
+    nmap <buffer> <silent> gf          <SID>:find <Plug><cfile><CR>
+    nmap <buffer> <silent> <C-W>f     <SID>:sfind <Plug><cfile><CR>
+    nmap <buffer> <silent> <C-W><C-F> <SID>:sfind <Plug><cfile><CR>
+    nmap <buffer> <silent> <C-W>gf  <SID>:tabfind <Plug><cfile><CR>
   endif
 endfunction
 
@@ -3103,10 +3029,6 @@ function! fugitive#cfile() abort
   return pre . s:fnameescape(fugitive#repo().translate(results[0]))
 endfunction
 
-function! fugitive#Cfile() abort
-  return fugitive#cfile()
-endfunction
-
 " Section: Statusline
 
 function! s:repo_head_ref() dict abort
@@ -3134,14 +3056,6 @@ function! fugitive#statusline(...) abort
   endif
 endfunction
 
-function! fugitive#Statusline(...) abort
-  return fugitive#statusline()
-endfunction
-
-function! FugitiveStatusline(...) abort
-  return fugitive#statusline()
-endfunction
-
 function! fugitive#head(...) abort
   if !exists('b:git_dir')
     return ''
@@ -3150,10 +3064,6 @@ function! fugitive#head(...) abort
   return s:repo().head(a:0 ? a:1 : 0)
 endfunction
 
-function! FugitiveHead(...) abort
-  return fugitive#head(a:0 ? a:1 : 0)
-endfunction
-
 augroup fugitive_statusline
   autocmd!
   autocmd User Flags call Hoist('buffer', function('fugitive#statusline'))
@@ -3164,54 +3074,46 @@ augroup END
 function! fugitive#foldtext() abort
   if &foldmethod !=# 'syntax'
     return foldtext()
-  endif
-
-  let line_foldstart = getline(v:foldstart)
-  if line_foldstart =~# '^diff '
+  elseif getline(v:foldstart) =~# '^diff '
     let [add, remove] = [-1, -1]
     let filename = ''
     for lnum in range(v:foldstart, v:foldend)
-      let line = getline(lnum)
-      if filename ==# '' && line =~# '^[+-]\{3\} [abciow12]/'
-        let filename = line[6:-1]
+      if filename ==# '' && getline(lnum) =~# '^[+-]\{3\} [abciow12]/'
+        let filename = getline(lnum)[6:-1]
       endif
-      if line =~# '^+'
+      if getline(lnum) =~# '^+'
         let add += 1
-      elseif line =~# '^-'
+      elseif getline(lnum) =~# '^-'
         let remove += 1
-      elseif line =~# '^Binary '
+      elseif getline(lnum) =~# '^Binary '
         let binary = 1
       endif
     endfor
     if filename ==# ''
-      let filename = matchstr(line_foldstart, '^diff .\{-\} [abciow12]/\zs.*\ze [abciow12]/')
+      let filename = matchstr(getline(v:foldstart), '^diff .\{-\} [abciow12]/\zs.*\ze [abciow12]/')
     endif
     if filename ==# ''
-      let filename = line_foldstart[5:-1]
+      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 line_foldstart =~# '^# .*:$'
+  elseif getline(v:foldstart) =~# '^# .*:$'
     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 line_foldstart.' '.join(lines, ', ')
+    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
 
-function! fugitive#Foldtext() abort
-  return fugitive#foldtext()
-endfunction
-
 augroup fugitive_foldtext
   autocmd!
   autocmd User Fugitive
         \ if &filetype =~# '^git\%(commit\)\=$' && &foldtext ==# 'foldtext()' |
-        \    set foldtext=fugitive#Foldtext() |
+        \    set foldtext=fugitive#foldtext() |
         \ endif
 augroup END