Run status buffer Git commands in parallel

GIT_INDEX_FILE is typically set to index.lock when Vim is invoked by
`git commit`.  This effectively breaks Fugitive if you try to use it in
a different repository while inside that Vim session.  To remedy this,
we can instead point GIT_INDEX_FILE at the index file for the relevant
repository.

This also retools command preparation to allow for general purpose
environment variable overrides.

README.markdown

@@ -36,11 +36,11 @@ Additional commands are provided for higher level operations:
 * View any blob, tree, commit, or tag in the repository with `:Gedit` (and
   `:Gsplit`, etc.).  For example, `:Gedit HEAD~3:%` loads the current file as
   it existed 3 commits ago.
-* `:Gdiffsplit` brings up the staged version of the file side by side with the
-  working tree version.  Use Vim's diff handling capabilities to apply changes
-  to the staged version, and write that buffer to stage the changes.  You can
-  also give an arbitrary `:Gedit` argument to diff against older versions of
-  the file.
+* `:Gdiffsplit` (or `:Gvdiffsplit`) brings up the staged version of the file
+  side by side with the working tree version.  Use Vim's diff handling
+  capabilities to apply changes to the staged version, and write that buffer
+  to stage the changes.  You can also give an arbitrary `:Gedit` argument to
+  diff against older versions of the file.
 * `:Gread` is a variant of `git checkout -- filename` that operates on the
   buffer rather than the file itself.  This means you can use `u` to undo it
   and you never get any warnings about the file changing outside Vim.

doc/fugitive.txt

@@ -309,7 +309,7 @@ Navigation maps ~
 
                                                 *fugitive_<CR>*
 <CR>                    Open the file or |fugitive-object| under the cursor.
-                        in a blob, this and similar maps jump to the patch
+                        In a blob, this and similar maps jump to the patch
                         from the diff where this was added, or where it was
                         removed if a count was given.  If the line is still in
                         the work tree version, passing a count takes you to
@@ -601,20 +601,47 @@ a statusline, this one matches the default when 'ruler' is set:
 >
         set statusline=%<%f\ %h%m%r%{FugitiveStatusline()}%=%-14.(%l,%c%V%)\ %P
 <
-                                *FugitiveHead(...)* *fugitive#head(...)*
-Use FugitiveHead() to return the name of the current branch. If the current
-HEAD is detached, FugitiveHead() will return the empty string, unless the
-optional argument is given, in which case the hash of the current commit will
-be truncated to the given number of characters.
+AUTOCOMMANDS                                    *fugitive-autocommands*
+
+A handful of |User| |autocommands| are provided to allow extending and
+overriding Fugitive behaviors.  Example usage:
+>
+        autocmd User FugitiveBlob call s:BlobOverrides()
+<
+                                                *User_FugitiveIndex*
+FugitiveIndex           After loading the |fugitive-summary| buffer.
+
+                                                *User_FugitiveTag*
+FugitiveTag             After loading a tag object.
+
+                                                *User_FugitiveCommit*
+FugitiveCommit          After loading a commit object.
+
+                                                *User_FugitiveTree*
+FugitiveTree            After loading a tree (directory) object.
+
+                                                *User_FugitiveBlob*
+FugitiveBlob            After loading a blob (file) object.  This includes
+                        both committed blobs which are read only, and staged
+                        blobs which can be edited and written.  Check
+                        &modifiable to distinguish between the two.
+
+                                                *User_FugitiveChanged*
+FugitiveChanged         After any event which can potentially change the
+                        repository, for example, any invocation of |:Git|.
+                        Originally intended for expiring caches, but can have
+                        other uses.
+
+API                                             *fugitive-api*
+
+Officially supported functions are documented inline in plugin/fugitive.vim.
 
 DEPRECATIONS                                    *fugitive-deprecated*
 
-The following commands are softly deprecated in favor of replacements that
-adhere to a new naming scheme.  They will eventually be removed, but probably
-not in the near future.
-
-Remember that |:Git| can be shortened to |:G|, so replacements using it are
-just one space character longer than the legacy version.
+The following commands are deprecated in favor of replacements that adhere to
+a new naming scheme.  Remember that |:Git| can be shortened to |:G|, so
+replacements using it are just one space character longer than the legacy
+version.
 
 *:Gremove*      Superseded by |:GRemove|.
 *:Gdelete*      Superseded by |:GDelete|.
@@ -640,6 +667,14 @@ just one space character longer than the legacy version.
 *:Gtabsplit!*   Superseded by :tab Git --paginate.
 *:Gpedit!*      Superseded by :Git! --paginate.
 
+                                                *User_Fugitive*
+Fugitive used to support `:autocmd User Fugitive` to run an autocommand after
+loading any buffer belonging to a Git repository, but this is being phased
+out.  Instead, one can leverage regular autocommand events like |BufNewFile|
+and |BufReadPost|, and check !empty(FugitiveGitDir()) to confirm Fugitive has
+found a repository.  See also |fugitive-autocommands| for other, more
+selective events.
+
 ABOUT                                           *fugitive-about*
 
 Grab the latest version or report a bug on GitHub:

ftplugin/fugitiveblame.vim

@@ -1,4 +1,4 @@
-if exists("b:did_ftplugin") || !exists('*fugitive#BlameFileType')
+if exists("b:did_ftplugin") || !exists("*FugitiveGitDir")
   finish
 endif
 let b:did_ftplugin = 1

plugin/fugitive.vim

@@ -10,13 +10,20 @@ let g:loaded_fugitive = 1
 
 let s:bad_git_dir = '/$\|^fugitive:'
 
+" FugitiveGitDir() returns the detected Git dir for the given buffer number,
+" or the current buffer if no argument is passed.  This will be an empty
+" string if no Git dir was found.  Use !empty(FugitiveGitDir()) to check if
+" Fugitive is active in the current buffer.  Do not rely on this for direct
+" filesystem access; use FugitiveFind('.git/whatever') instead.
 function! FugitiveGitDir(...) abort
-  if !a:0 || type(a:1) == type(0) && a:1 < 0
+  if v:version < 704
+    return ''
+  elseif !a:0 || type(a:1) == type(0) && a:1 < 0
     if exists('g:fugitive_event')
       return g:fugitive_event
     endif
     let dir = get(b:, 'git_dir', '')
-    if empty(dir) && (empty(bufname('')) || &buftype =~# '^\%(nofile\|acwrite\|quickfix\|prompt\)$')
+    if empty(dir) && (empty(bufname('')) || &buftype =~# '^\%(nofile\|acwrite\|quickfix\|terminal\|prompt\)$')
       return FugitiveExtractGitDir(getcwd())
     elseif (!exists('b:git_dir') || b:git_dir =~# s:bad_git_dir) && empty(&buftype)
       let b:git_dir = FugitiveExtractGitDir(expand('%:p'))
@@ -65,11 +72,19 @@ endfunction
 " An optional second argument provides the Git dir, or the buffer number of a
 " buffer with a Git dir.  The default is the current buffer.
 function! FugitiveFind(...) abort
+  if a:0 && type(a:1) ==# type({})
+    return call('fugitive#Find', a:000[1:-1] + [FugitiveGitDir(a:1)])
+  else
     return fugitive#Find(a:0 ? a:1 : bufnr(''), FugitiveGitDir(a:0 > 1 ? a:2 : -1))
+  endif
 endfunction
 
 function! FugitivePath(...) abort
-  if a:0 > 1
+  if a:0 > 2 && type(a:1) ==# type({})
+    return fugitive#Path(a:2, a:3, FugitiveGitDir(a:1))
+  elseif a:0 && type(a:1) ==# type({})
+    return FugitiveReal(a:0 > 1 ? a:2 : @%)
+  elseif a:0 > 1
     return fugitive#Path(a:1, a:2, FugitiveGitDir(a:0 > 2 ? a:3 : -1))
   else
     return FugitiveReal(a:0 ? a:1 : @%)
@@ -93,13 +108,15 @@ function! FugitiveParse(...) abort
 endfunction
 
 " FugitiveResult() returns an object encapsulating the result of the most
-" recend :Git command.  Will be empty if no result is available.  Pass in the
-" name of a temp buffer to get the result object for that command instead.
-" Contains the following keys:
+" recent :Git command.  Will be empty if no result is available.  During a
+" User FugitiveChanged event, this is guaranteed to correspond to the :Git
+" command that triggered the event, or be empty if :Git was not the trigger.
+" Pass in the name of a temp buffer to get the result object for that command
+" instead.  Contains the following keys:
 "
 " * "args": List of command arguments, starting with the subcommand.  Will be
 "   empty for usages like :Git --help.
-" * "dir": Git dir of the relevant repository.
+" * "git_dir": Git dir of the relevant repository.
 " * "exit_status": The integer exit code of the process.
 " * "flags": Flags passed directly to Git, like -c and --help.
 " * "file": Path to file containing command output.  Not guaranteed to exist,
@@ -117,7 +134,7 @@ endfunction
 " it will be used as the Git dir.  If it's a buffer number, the Git dir for
 " that buffer will be used.  The default is the current buffer.
 function! FugitivePrepare(...) abort
-  return call('fugitive#Prepare', a:000)
+  return call('fugitive#ShellCommand', a:000)
 endfunction
 
 " FugitiveConfig() get returns an opaque structure that can be passed to other
@@ -125,33 +142,25 @@ endfunction
 " when performing multiple config queries.  Do not rely on the internal
 " structure of the return value as it is not guaranteed.  If you want a full
 " dictionary of every config value, use FugitiveConfigGetRegexp('.*').
+"
+" An optional argument provides the Git dir, or the buffer number of a
+" buffer with a Git dir.  The default is the current buffer.  Pass a blank
+" string to limit to the global config.
 function! FugitiveConfig(...) abort
-  if a:0 == 2 && (type(a:2) != type({}) || has_key(a:2, 'git_dir'))
-    return fugitive#Config(a:1, FugitiveGitDir(a:2))
-  elseif a:0 == 1 && (type(a:1) !=# type('') || a:1 !~# '^[[:alnum:]-]\+\.')
-    return fugitive#Config(FugitiveGitDir(a:1))
-  else
   return call('fugitive#Config', a:000)
-  endif
 endfunction
 
 " FugitiveConfigGet() retrieves a Git configuration value.  An optional second
-" argument provides the Git dir as with FugitiveFind().  Pass a blank string
-" to limit to the global config.
+" argument can be either the object returned by FugitiveConfig(), or a Git
+" dir or buffer number to be passed along to FugitiveConfig().
 function! FugitiveConfigGet(name, ...) abort
-  return call('FugitiveConfig', [a:name] + a:000)
+  return get(call('FugitiveConfigGetAll', [a:name] + (a:0 ? [a:1] : [])), 0, get(a:, 2, ''))
 endfunction
 
 " FugitiveConfigGetAll() is like FugitiveConfigGet() but returns a list of
 " all values.
 function! FugitiveConfigGetAll(name, ...) abort
-  if a:0 && type(a:1) ==# type({}) && !has_key(a:1, 'git_dir')
-    let config = a:1
-  else
-    let config = fugitive#Config(FugitiveGitDir(a:0 ? a:1 : -1))
-  endif
-  let name = substitute(a:name, '^[^.]\+\|[^.]\+$', '\L&', 'g')
-  return copy(get(config, name, []))
+  return call('fugitive#ConfigGetAll', [a:name] + a:000)
 endfunction
 
 " FugitiveConfigGetRegexp() retrieves a dictionary of all configuration values
@@ -159,35 +168,42 @@ endfunction
 " using a Vim regexp.  Second argument has same semantics as
 " FugitiveConfigGet().
 function! FugitiveConfigGetRegexp(pattern, ...) abort
-  if a:0 && type(a:1) ==# type({}) && !has_key(a:2, 'git_dir')
-    let config = a:1
-  else
-    let config = fugitive#Config(FugitiveGitDir(a:0 ? a:1 : -1))
-  endif
-  let filtered = map(filter(copy(config), 'v:key =~# "\\." && v:key =~# a:pattern'), 'copy(v:val)')
-  if a:pattern !~# '\\\@<!\%(\\\\\)*\\z[se]'
-    return filtered
-  endif
-  let transformed = {}
-  for [k, v] in items(filtered)
-    let k = matchstr(k, a:pattern)
-    if len(k)
-      let transformed[k] = v
-    endif
-  endfor
-  return transformed
+  return call('fugitive#ConfigGetRegexp', [a:pattern] + a:000)
 endfunction
 
+" FugitiveRemoteUrl() retrieves the remote URL for the given remote name,
+" defaulting to the current branch's remote or "origin" if no argument is
+" given.  Similar to `git remote get-url`, but also attempts to resolve HTTP
+" redirects and SSH host aliases.
+"
+" An optional second argument provides the Git dir, or the buffer number of a
+" buffer with a Git dir.  The default is the current buffer.
 function! FugitiveRemoteUrl(...) abort
-  return fugitive#RemoteUrl(a:0 ? a:1 : '', FugitiveGitDir(a:0 > 1 ? a:2 : -1), a:0 > 2 ? a:3 : 0)
+  return call('fugitive#RemoteUrl', a:000)
 endfunction
 
+" FugitiveHead() retrieves the name of the current branch. If the current HEAD
+" is detached, FugitiveHead() will return the empty string, unless the
+" optional argument is given, in which case the hash of the current commit
+" will be truncated to the given number of characters.
+"
+" An optional second argument provides the Git dir, or the buffer number of a
+" buffer with a Git dir.  The default is the current buffer.
 function! FugitiveHead(...) abort
-  let dir = FugitiveGitDir(a:0 > 1 ? a:2 : -1)
+  if a:0 && type(a:1) ==# type({})
+    let dir = FugitiveGitDir(a:1)
+    let arg = get(a:, 2, 0)
+  elseif a:0 > 1
+    let dir = FugitiveGitDir(a:2)
+    let arg = a:1
+  else
+    let dir = FugitiveGitDir()
+    let arg = get(a:, 1, 0)
+  endif
   if empty(dir)
     return ''
   endif
-  return fugitive#Head(a:0 ? a:1 : 0, dir)
+  return fugitive#Head(arg, dir)
 endfunction
 
 function! FugitiveStatusline(...) abort
@@ -202,16 +218,24 @@ function! FugitiveCommonDir(...) abort
   if empty(dir)
     return ''
   endif
-  return fugitive#CommonDir(dir)
+  return fugitive#Find('.git/refs/..', dir)
 endfunction
 
 function! FugitiveWorkTree(...) abort
-  return s:Tree(FugitiveGitDir(a:0 ? a:1 : -1))
+  let tree = s:Tree(FugitiveGitDir(a:0 ? a:1 : -1))
+  if tree isnot# 0 || a:0 > 1
+    return tree
+  else
+    return ''
+  endif
 endfunction
 
-function! FugitiveIsGitDir(path) abort
-  let path = substitute(a:path, '[\/]$', '', '') . '/'
-  return len(a:path) && getfsize(path.'HEAD') > 10 && (
+function! FugitiveIsGitDir(...) abort
+  if !a:0 || type(a:1) !=# type('')
+    return !empty(call('FugitiveGitDir', a:000))
+  endif
+  let path = substitute(a:1, '[\/]$', '', '') . '/'
+  return len(path) && getfsize(path.'HEAD') > 10 && (
         \ isdirectory(path.'objects') && isdirectory(path.'refs') ||
         \ getftype(path.'commondir') ==# 'file')
 endfunction
@@ -230,9 +254,14 @@ function! s:Tree(path) abort
     let config_file = dir . '/config'
     if filereadable(config_file)
       let config = readfile(config_file,'',10)
-      call filter(config,'v:val =~# "^\\s*worktree *="')
-      if len(config) == 1
-        let worktree = FugitiveVimPath(matchstr(config[0], '= *\zs.*'))
+      let wt_config = filter(copy(config),'v:val =~# "^\\s*worktree *="')
+      if len(wt_config) == 1
+        let worktree = FugitiveVimPath(matchstr(wt_config[0], '= *\zs.*'))
+      else
+        call filter(config,'v:val =~# "^\\s*bare *= *false *$"')
+        if len(config)
+          let s:worktree_for_dir[dir] = 0
+        endif
       endif
     elseif filereadable(dir . '/gitdir')
       let worktree = fnamemodify(FugitiveVimPath(readfile(dir . '/gitdir')[0]), ':h')
@@ -327,6 +356,9 @@ function! FugitiveExtractGitDir(path) abort
 endfunction
 
 function! FugitiveDetect(path) abort
+  if v:version < 704
+    return ''
+  endif
   if exists('b:git_dir') && b:git_dir =~# '^$\|' . s:bad_git_dir
     unlet b:git_dir
   endif
@@ -381,7 +413,7 @@ function! s:ProjectionistDetect() abort
   if empty(base)
     let base = s:Tree(dir)
   endif
-  if len(base)
+  if !empty(base)
     if exists('+shellslash') && !&shellslash
       let base = tr(base, '/', '\')
     endif
@@ -392,9 +424,96 @@ function! s:ProjectionistDetect() abort
   endif
 endfunction
 
-if v:version + has('patch061') < 703
-  runtime! autoload/fugitive.vim
+let s:addr_other = has('patch-8.1.560') ? '-addr=other' : ''
+let s:addr_tabs  = has('patch-7.4.542') ? '-addr=tabs' : ''
+let s:addr_wins  = has('patch-7.4.542') ? '-addr=windows' : ''
+
+if exists(':G') != 2
+  command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#Complete G   exe fugitive#Command(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)
 endif
+command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#Complete Git exe fugitive#Command(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)
+
+if exists(':Gstatus') != 2 && get(g:, 'fugitive_legacy_commands', 1)
+  exe 'command! -bang -bar     -range=-1' s:addr_other 'Gstatus exe fugitive#Command(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)'
+        \ '|echohl WarningMSG|echomsg ":Gstatus is deprecated in favor of :Git (with no arguments)"|echohl NONE'
+endif
+
+for s:cmd in ['Commit', 'Revert', 'Merge', 'Rebase', 'Pull', 'Push', 'Fetch', 'Blame']
+  if exists(':G' . tolower(s:cmd)) != 2 && get(g:, 'fugitive_legacy_commands', 1)
+    exe 'command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#' . s:cmd . 'Complete G' . tolower(s:cmd)
+          \ 'echohl WarningMSG|echomsg ":G' . tolower(s:cmd) . ' is deprecated in favor of :Git ' . tolower(s:cmd) . '"|echohl NONE|'
+          \ 'exe fugitive#Command(<line1>, <count>, +"<range>", <bang>0, "<mods>", "' . tolower(s:cmd) . ' " . <q-args>)'
+  endif
+endfor
+unlet s:cmd
+
+exe "command! -bar -bang -nargs=? -complete=customlist,fugitive#CdComplete Gcd  exe fugitive#Cd(<q-args>, 0)"
+exe "command! -bar -bang -nargs=? -complete=customlist,fugitive#CdComplete Glcd exe fugitive#Cd(<q-args>, 1)"
+
+exe 'command! -bang -nargs=? -range=-1' s:addr_wins '-complete=customlist,fugitive#GrepComplete Ggrep  exe fugitive#GrepCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)'
+exe 'command! -bang -nargs=? -range=-1' s:addr_wins '-complete=customlist,fugitive#GrepComplete Gcgrep exe fugitive#GrepCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)'
+exe 'command! -bang -nargs=? -range=-1' s:addr_wins '-complete=customlist,fugitive#GrepComplete Glgrep exe fugitive#GrepCommand(0, <count> > 0 ? <count> : 0, +"<range>", <bang>0, "<mods>", <q-args>)'
+
+if exists(':Glog') != 2 && get(g:, 'fugitive_legacy_commands', 1)
+  exe 'command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#LogComplete Glog  :exe fugitive#LogCommand(<line1>,<count>,+"<range>",<bang>0,"<mods>",<q-args>, "")'
+        \ '|echohl WarningMSG|echomsg ":Glog is deprecated in favor of :Gclog"|echohl NONE'
+endif
+exe 'command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#LogComplete Gclog :exe fugitive#LogCommand(<line1>,<count>,+"<range>",<bang>0,"<mods>",<q-args>, "c")'
+exe 'command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#LogComplete GcLog :exe fugitive#LogCommand(<line1>,<count>,+"<range>",<bang>0,"<mods>",<q-args>, "c")'
+exe 'command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#LogComplete Gllog :exe fugitive#LogCommand(<line1>,<count>,+"<range>",<bang>0,"<mods>",<q-args>, "l")'
+exe 'command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#LogComplete GlLog :exe fugitive#LogCommand(<line1>,<count>,+"<range>",<bang>0,"<mods>",<q-args>, "l")'
+
+exe 'command! -bar -bang -nargs=*                          -complete=customlist,fugitive#EditComplete   Ge       exe fugitive#Open("edit<bang>", 0, "<mods>", <q-args>, [<f-args>])'
+exe 'command! -bar -bang -nargs=*                          -complete=customlist,fugitive#EditComplete   Gedit    exe fugitive#Open("edit<bang>", 0, "<mods>", <q-args>, [<f-args>])'
+exe 'command! -bar -bang -nargs=*                          -complete=customlist,fugitive#ReadComplete   Gpedit   exe fugitive#Open("pedit", <bang>0, "<mods>", <q-args>, [<f-args>])'
+exe 'command! -bar -bang -nargs=* -range=-1' s:addr_other '-complete=customlist,fugitive#ReadComplete   Gsplit   exe fugitive#Open((<count> > 0 ? <count> : "").(<count> ? "split" : "edit"), <bang>0, "<mods>", <q-args>, [<f-args>])'
+exe 'command! -bar -bang -nargs=* -range=-1' s:addr_other '-complete=customlist,fugitive#ReadComplete   Gvsplit  exe fugitive#Open((<count> > 0 ? <count> : "").(<count> ? "vsplit" : "edit!"), <bang>0, "<mods>", <q-args>, [<f-args>])'
+exe 'command! -bar -bang -nargs=* -range=-1' s:addr_tabs  '-complete=customlist,fugitive#ReadComplete   Gtabedit exe fugitive#Open((<count> >= 0 ? <count> : "")."tabedit", <bang>0, "<mods>", <q-args>, [<f-args>])'
+
+if exists(':Gr') != 2
+  exe 'command! -bar -bang -nargs=* -range=-1                -complete=customlist,fugitive#ReadComplete   Gr     exe fugitive#ReadCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
+endif
+exe 'command! -bar -bang -nargs=* -range=-1                -complete=customlist,fugitive#ReadComplete   Gread    exe fugitive#ReadCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
+
+exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Gdiffsplit  exe fugitive#Diffsplit(1, <bang>0, "<mods>", <q-args>, [<f-args>])'
+exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Ghdiffsplit exe fugitive#Diffsplit(0, <bang>0, "<mods>", <q-args>, [<f-args>])'
+exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Gvdiffsplit exe fugitive#Diffsplit(0, <bang>0, "vertical <mods>", <q-args>, [<f-args>])'
+
+exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Gw     exe fugitive#WriteCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
+exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Gwrite exe fugitive#WriteCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
+exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Gwq    exe fugitive#WqCommand(   <line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
+
+exe 'command! -bar -bang -nargs=0 GRemove exe fugitive#RemoveCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
+exe 'command! -bar -bang -nargs=0 GDelete exe fugitive#DeleteCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
+exe 'command! -bar -bang -nargs=1 -complete=customlist,fugitive#CompleteObject GMove   exe fugitive#MoveCommand(  <line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
+exe 'command! -bar -bang -nargs=1 -complete=customlist,fugitive#RenameComplete GRename exe fugitive#RenameCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
+if exists(':Gremove') != 2 && get(g:, 'fugitive_legacy_commands', 1)
+  exe 'command! -bar -bang -nargs=0 Gremove exe fugitive#RemoveCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
+        \ '|echohl WarningMSG|echomsg ":Gremove is deprecated in favor of :GRemove"|echohl NONE'
+endif
+if exists(':Gdelete') != 2 && get(g:, 'fugitive_legacy_commands', 1)
+  exe 'command! -bar -bang -nargs=0 Gdelete exe fugitive#DeleteCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
+        \ '|echohl WarningMSG|echomsg ":Gdelete is deprecated in favor of :GDelete"|echohl NONE'
+endif
+if exists(':Gmove') != 2 && get(g:, 'fugitive_legacy_commands', 1)
+  exe 'command! -bar -bang -nargs=1 -complete=customlist,fugitive#CompleteObject Gmove   exe fugitive#MoveCommand(  <line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
+        \ '|echohl WarningMSG|echomsg ":Gmove is deprecated in favor of :GMove"|echohl NONE'
+endif
+if exists(':Grename') != 2 && get(g:, 'fugitive_legacy_commands', 1)
+  exe 'command! -bar -bang -nargs=1 -complete=customlist,fugitive#RenameComplete Grename exe fugitive#RenameCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
+        \ '|echohl WarningMSG|echomsg ":Grename is deprecated in favor of :GRename"|echohl NONE'
+endif
+
+exe 'command! -bar -bang -range=-1 -nargs=* -complete=customlist,fugitive#CompleteObject GBrowse exe fugitive#BrowseCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
+if exists(':Gbrowse') != 2 && get(g:, 'fugitive_legacy_commands', 1)
+  exe 'command! -bar -bang -range=-1 -nargs=* -complete=customlist,fugitive#CompleteObject Gbrowse exe fugitive#BrowseCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
+        \ '|if <bang>1|redraw!|endif|echohl WarningMSG|echomsg ":Gbrowse is deprecated in favor of :GBrowse"|echohl NONE'
+endif
+
+if v:version < 704
+  finish
+endif
+
 let g:io_fugitive = {
       \ 'simplify': function('fugitive#simplify'),
       \ 'resolve': function('fugitive#resolve'),
@@ -465,92 +584,6 @@ augroup fugitive
   autocmd User ProjectionistDetect call s:ProjectionistDetect()
 augroup END
 
-let s:addr_other = has('patch-8.1.560') ? '-addr=other' : ''
-let s:addr_tabs  = has('patch-7.4.542') ? '-addr=tabs' : ''
-let s:addr_wins  = has('patch-7.4.542') ? '-addr=windows' : ''
-
-if exists(':G') != 2
-  command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#Complete G   exe fugitive#Command(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)
-endif
-command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#Complete Git exe fugitive#Command(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)
-
-if exists(':Gstatus') != 2 && get(g:, 'fugitive_legacy_commands', 1)
-  exe 'command! -bang -bar     -range=-1' s:addr_other 'Gstatus exe fugitive#Command(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)'
-        \ '|echohl WarningMSG|echo ":Gstatus is deprecated in favor of :Git (with no arguments)"|echohl NONE'
-endif
-
-for s:cmd in ['Commit', 'Revert', 'Merge', 'Rebase', 'Pull', 'Push', 'Fetch', 'Blame']
-  if exists(':G' . tolower(s:cmd)) != 2 && get(g:, 'fugitive_legacy_commands', 1)
-    exe 'command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#' . s:cmd . 'Complete G' . tolower(s:cmd)
-          \ 'echohl WarningMSG|echo ":G' . tolower(s:cmd) . ' is deprecated in favor of :Git ' . tolower(s:cmd) . '"|echohl NONE|'
-          \ 'exe fugitive#Command(<line1>, <count>, +"<range>", <bang>0, "<mods>", "' . tolower(s:cmd) . ' " . <q-args>)'
-  endif
-endfor
-unlet s:cmd
-
-exe "command! -bar -bang -nargs=? -complete=customlist,fugitive#CdComplete Gcd  exe fugitive#Cd(<q-args>, 0)"
-exe "command! -bar -bang -nargs=? -complete=customlist,fugitive#CdComplete Glcd exe fugitive#Cd(<q-args>, 1)"
-
-exe 'command! -bang -nargs=? -range=-1' s:addr_wins '-complete=customlist,fugitive#GrepComplete Ggrep  exe fugitive#GrepCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)'
-exe 'command! -bang -nargs=? -range=-1' s:addr_wins '-complete=customlist,fugitive#GrepComplete Gcgrep exe fugitive#GrepCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)'
-exe 'command! -bang -nargs=? -range=-1' s:addr_wins '-complete=customlist,fugitive#GrepComplete Glgrep exe fugitive#GrepCommand(0, <count> > 0 ? <count> : 0, +"<range>", <bang>0, "<mods>", <q-args>)'
-
-if exists(':Glog') != 2 && get(g:, 'fugitive_legacy_commands', 1)
-  exe 'command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#LogComplete Glog  :exe fugitive#LogCommand(<line1>,<count>,+"<range>",<bang>0,"<mods>",<q-args>, "")'
-        \ '|echohl WarningMSG|echo ":Glog is deprecated in favor of :Gclog"|echohl NONE'
-endif
-exe 'command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#LogComplete Gclog :exe fugitive#LogCommand(<line1>,<count>,+"<range>",<bang>0,"<mods>",<q-args>, "c")'
-exe 'command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#LogComplete GcLog :exe fugitive#LogCommand(<line1>,<count>,+"<range>",<bang>0,"<mods>",<q-args>, "c")'
-exe 'command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#LogComplete Gllog :exe fugitive#LogCommand(<line1>,<count>,+"<range>",<bang>0,"<mods>",<q-args>, "l")'
-exe 'command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#LogComplete GlLog :exe fugitive#LogCommand(<line1>,<count>,+"<range>",<bang>0,"<mods>",<q-args>, "l")'
-
-exe 'command! -bar -bang -nargs=*                          -complete=customlist,fugitive#EditComplete   Ge       exe fugitive#Open("edit<bang>", 0, "<mods>", <q-args>, [<f-args>])'
-exe 'command! -bar -bang -nargs=*                          -complete=customlist,fugitive#EditComplete   Gedit    exe fugitive#Open("edit<bang>", 0, "<mods>", <q-args>, [<f-args>])'
-exe 'command! -bar -bang -nargs=*                          -complete=customlist,fugitive#ReadComplete   Gpedit   exe fugitive#Open("pedit", <bang>0, "<mods>", <q-args>, [<f-args>])'
-exe 'command! -bar -bang -nargs=* -range=-1' s:addr_other '-complete=customlist,fugitive#ReadComplete   Gsplit   exe fugitive#Open((<count> > 0 ? <count> : "").(<count> ? "split" : "edit"), <bang>0, "<mods>", <q-args>, [<f-args>])'
-exe 'command! -bar -bang -nargs=* -range=-1' s:addr_other '-complete=customlist,fugitive#ReadComplete   Gvsplit  exe fugitive#Open((<count> > 0 ? <count> : "").(<count> ? "vsplit" : "edit!"), <bang>0, "<mods>", <q-args>, [<f-args>])'
-exe 'command! -bar -bang -nargs=* -range=-1' s:addr_tabs  '-complete=customlist,fugitive#ReadComplete   Gtabedit exe fugitive#Open((<count> >= 0 ? <count> : "")."tabedit", <bang>0, "<mods>", <q-args>, [<f-args>])'
-
-if exists(':Gr') != 2
-  exe 'command! -bar -bang -nargs=* -range=-1                -complete=customlist,fugitive#ReadComplete   Gr     exe fugitive#ReadCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
-endif
-exe 'command! -bar -bang -nargs=* -range=-1                -complete=customlist,fugitive#ReadComplete   Gread    exe fugitive#ReadCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
-
-exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Gdiffsplit  exe fugitive#Diffsplit(1, <bang>0, "<mods>", <q-args>, [<f-args>])'
-exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Ghdiffsplit exe fugitive#Diffsplit(0, <bang>0, "<mods>", <q-args>, [<f-args>])'
-exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Gvdiffsplit exe fugitive#Diffsplit(0, <bang>0, "vert <mods>", <q-args>, [<f-args>])'
-
-exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Gw     exe fugitive#WriteCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
-exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Gwrite exe fugitive#WriteCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
-exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Gwq    exe fugitive#WqCommand(   <line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
-
-exe 'command! -bar -bang -nargs=0 -complete=customlist,fugitive#CompleteObject GRemove exe fugitive#RemoveCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
-exe 'command! -bar -bang -nargs=0 -complete=customlist,fugitive#CompleteObject GDelete exe fugitive#DeleteCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
-exe 'command! -bar -bang -nargs=1 -complete=customlist,fugitive#CompleteObject GMove   exe fugitive#MoveCommand(  <line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
-exe 'command! -bar -bang -nargs=1 -complete=customlist,fugitive#RenameComplete GRename exe fugitive#RenameCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
-if exists(':Gremove') != 2 && get(g:, 'fugitive_legacy_commands', 1)
-  exe 'command! -bar -bang -nargs=0 -complete=customlist,fugitive#CompleteObject Gremove exe fugitive#RemoveCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
-        \ '|echohl WarningMSG|echo ":Gremove is deprecated in favor of :GRemove"|echohl NONE'
-endif
-if exists(':Gdelete') != 2 && get(g:, 'fugitive_legacy_commands', 1)
-  exe 'command! -bar -bang -nargs=0 -complete=customlist,fugitive#CompleteObject Gdelete exe fugitive#DeleteCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
-        \ '|echohl WarningMSG|echo ":Gdelete is deprecated in favor of :GDelete"|echohl NONE'
-endif
-if exists(':Gmove') != 2 && get(g:, 'fugitive_legacy_commands', 1)
-  exe 'command! -bar -bang -nargs=1 -complete=customlist,fugitive#CompleteObject Gmove   exe fugitive#MoveCommand(  <line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
-        \ '|echohl WarningMSG|echo ":Gmove is deprecated in favor of :GMove"|echohl NONE'
-endif
-if exists(':Grename') != 2 && get(g:, 'fugitive_legacy_commands', 1)
-  exe 'command! -bar -bang -nargs=1 -complete=customlist,fugitive#RenameComplete Grename exe fugitive#RenameCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
-        \ '|echohl WarningMSG|echo ":Grename is deprecated in favor of :GRename"|echohl NONE'
-endif
-
-exe 'command! -bar -bang -range=-1 -nargs=* -complete=customlist,fugitive#CompleteObject GBrowse exe fugitive#BrowseCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
-if exists(':Gbrowse') != 2 && get(g:, 'fugitive_legacy_commands', 1)
-  exe 'command! -bar -bang -range=-1 -nargs=* -complete=customlist,fugitive#CompleteObject Gbrowse exe fugitive#BrowseCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>, [<f-args>])'
-        \ '|if <bang>1|redraw!|endif|echohl WarningMSG|echo ":Gbrowse is deprecated in favor of :GBrowse"|echohl NONE'
-endif
-
 if get(g:, 'fugitive_no_maps')
   finish
 endif

syntax/fugitive.vim

@@ -7,8 +7,9 @@ syn spell notoplevel
 
 syn include @fugitiveDiff syntax/diff.vim
 
-syn match fugitiveHeader /^[A-Z][a-z][^:]*:/ nextgroup=fugitiveHash,fugitiveSymbolicRef skipwhite
-syn match fugitiveBareHeader /^Bare:/
+syn match fugitiveHeader /^[A-Z][a-z][^:]*:/
+syn match fugitiveHeader /^Head:/ nextgroup=fugitiveHash,fugitiveSymbolicRef skipwhite
+syn match fugitiveHeader /^Pull:\|^Rebase:\|^Merge:\|^Push:/ nextgroup=fugitiveSymbolicRef skipwhite
 syn match fugitiveHelpHeader /^Help:/ nextgroup=fugitiveHelpTag skipwhite
 syn match fugitiveHelpTag    /\S\+/ contained
 
@@ -26,7 +27,7 @@ syn match fugitiveSymbolicRef /\.\@!\%(\.\.\@!\|[^[:space:][:cntrl:]\:.]\)\+\.\@
 syn match fugitiveHash /^\x\{4,\}\S\@!/ contained containedin=@fugitiveSection
 syn match fugitiveHash /\S\@<!\x\{4,\}\S\@!/ contained
 
-syn region fugitiveHunk start=/^\%(@@\+ -\)\@=/ end=/^\%([A-Za-z?@]\|$\)\@=/ contains=@fugitiveDiff containedin=@fugitiveSection fold
+syn region fugitiveHunk start=/^\%(@@\+ -\)\@=/ end=/^\%([A-Za-z?@]\|$\)\@=/ contains=diffLine,diffRemoved,diffAdded,diffNoEOL containedin=@fugitiveSection fold
 
 for s:section in ['Untracked', 'Unstaged', 'Staged']
   exe 'syn region fugitive' . s:section . 'Section start=/^\%(' . s:section . ' .*(\d\+)$\)\@=/ contains=fugitive' . s:section . 'Heading end=/^$/'
@@ -36,7 +37,6 @@ for s:section in ['Untracked', 'Unstaged', 'Staged']
 endfor
 unlet s:section
 
-hi def link fugitiveBareHeader fugitiveHeader
 hi def link fugitiveHelpHeader fugitiveHeader
 hi def link fugitiveHeader Label
 hi def link fugitiveHelpTag Tag

syntax/fugitiveblame.vim

@@ -1,4 +1,4 @@
-if exists("b:current_syntax")
+if exists("b:current_syntax") || !exists("*FugitiveGitDir")
   finish
 endif