Attempt to catch overlapping status reloads

The diff on a root commit is often large and seldom helpful, so let's
get rid of it.  This will also be one less thing to worry about when
changing to a fugitive file type.

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.
@@ -99,14 +99,9 @@ Install using your favorite package manager, or use Vim's built-in package suppo
 > `:Gfetch`?
 
 This behavior was divisive, confusing, and complicated inputting passwords, so
-it was removed.  Use `:Dispatch git push` for effectively the same behavior,
-or provide your own asynchronous `:Gpush` and `:Gfetch` by adding the
-following to your vimrc:
-
-    command! -bang -bar -nargs=* Gpush execute 'Dispatch<bang> -dir=' .
-          \ fnameescape(FugitiveGitDir()) 'git push' <q-args>
-    command! -bang -bar -nargs=* Gfetch execute 'Dispatch<bang> -dir=' .
-          \ fnameescape(FugitiveGitDir()) 'git fetch' <q-args>
+it was removed.  Use `:Git! push` to use Fugitive's own asynchronous
+execution, or retroactively make `:Git push` asynchronous by pressing
+`CTRL-D`.
 
 > So I have a symlink and...
 

doc/fugitive.txt

@@ -15,9 +15,12 @@ COMMANDS                                        *fugitive-commands*
 These commands are local to the buffers in which they work (generally, buffers
 that are part of Git repositories).
 
-                                                *:Git* *fugitive-:G*
+                                                *fugitive-:G*
+:G [args]               Same as :Git, but two characters shorter.
+
+                                                *:Git*
 :Git {args}             Run an arbitrary git command and display any output.
-:G {args}               On UNIX this uses a pty and on other platforms it uses
+                        On UNIX this uses a pty and on other platforms it uses
                         a pipe, which will cause some behavior differences
                         such as the absence of progress bars.  Any file the
                         command edits (for example, a commit message) will be
@@ -25,17 +28,28 @@ that are part of Git repositories).
                         resume running the command.  A few Git subcommands
                         have different behavior; these are documented below.
 
+                                                *:Git!*
+:Git! {args}            Run an arbitrary git command in the background and
+                        stream the output to the preview window.  Requires a
+                        Vim with |setbufline()|.  Press CTRL-D during an
+                        interactive :Git invocation to switch to this mode
+                        retroactively.
+
                                                 *:Git_--paginate* *:Git_-p*
 :Git --paginate {args}  Run an arbitrary git command, capture output to a temp
-:Git -p {args}          file, and |:split| that temp file.  Use :0Git to
-:G --paginate {args}    |:edit| the temp file instead.  A temp file is always
-:G -p {args}            used for commands like diff and log that typically
-                        user a pager, and for any command that has the
-                        pager.<cmd> Git configuration option set.
+:Git -p {args}          file, and |:split| that temp file.  Pass ++curwin as
+                        the first argument to |:edit| the temp file instead.
+                        A temp file is always used for commands like diff and
+                        log that typically uses a pager, and for any command
+                        that has the pager.<cmd> Git configuration option set.
+
+:{range}Git! --paginate {args}
+:{range}Git! -p {args}  Run an arbitrary git command, and insert the output
+                        after {range} in the current buffer.
 
                                                 *fugitive-summary*
 :Git                    With no arguments, bring up a summary window vaguely
-:G                      akin to git-status.  Press g? or see |fugitive-maps|
+                        akin to git-status.  Press g? or see |fugitive-maps|
                         for usage.
 
                                                 *:Git_blame*
@@ -84,13 +98,17 @@ that are part of Git repositories).
                                                 *:Git_mergetool*
 :Git mergetool [args]   Like |:Git_difftool|, but target merge conflicts.
 
-                                                *:Ggrep* *:Gcgrep* *:Git_grep*
-:Ggrep[!] [args]        |:grep|[!] with git-grep as 'grepprg'.
-:Git[!] grep [args]
+                                                *:Ggrep* *:Git_grep*
+:Ggrep[!] [args]        An approximation of |:grep|[!] with git-grep as
+:Git[!] grep -O [args]  'grepprg'.
+
+:Ggrep[!] --quiet [args]
+:Ggrep[!] -q [args]     Like |:Ggrep|, but instead of displaying output, open
+                        the quickfix list.
 
                                                 *:Glgrep*
-:Glgrep[!] [args]       |:lgrep|[!] with git-grep as 'grepprg'.
-:0Git[!] grep [args]
+:Glgrep[!] [args]       :Ggrep but for |:lgrep|.
+:0Git[!] grep -O [args]
 
                                                  *:Gclog*
 :Gclog[!] [args]        Use git-log [args] to load the commit history into the
@@ -170,10 +188,10 @@ that are part of Git repositories).
 :Gdiffsplit [object]    Perform a |vimdiff| against the given file, or if a
                         commit is given, the current file in that commit.
                         With no argument, the version in the index or work
-                        tree is used.  The newer of the two files is placed to
-                        the right or bottom, depending on 'diffopt' and the
-                        width of the window relative to 'textwidth'.  Use
-                        Vim's |do| and |dp| to stage and unstage changes.
+                        tree is used, and the work tree version is always
+                        placed to the right or bottom, depending on available
+                        width.  Use Vim's |do| and |dp| to stage and unstage
+                        changes.
 
                                                 *:Gdiffsplit!*
 :Gdiffsplit!            Diff against any and all direct ancestors, retaining
@@ -190,7 +208,10 @@ that are part of Git repositories).
 :Gvdiffsplit [object]   Like |:Gdiffsplit|, but always split vertically.
 
                                                 *:Ghdiffsplit*
-:Ghdiffsplit [object]   Like |:Gdiffsplit|, but always split horizontally.
+:Gdiffsplit ++novertical [object]
+:Ghdiffsplit [object]   Like |:Gdiffsplit|, but with "vertical" removed from
+                        'diffopt'.  The split will still be vertical if
+                        combined with |:vertical|.
 
                                                 *:GMove*
 :GMove {destination}    Wrapper around git-mv that renames the buffer
@@ -297,6 +318,7 @@ dv                      Perform a |:Gvdiffsplit| on the file under the cursor.
                                                 *fugitive_ds* *fugitive_dh*
 ds                      Perform a |:Ghdiffsplit| on the file under the cursor.
 dh
+
                                                 *fugitive_dq*
 dq                      Close all but one diff buffer, and |:diffoff|! the
                         last one.
@@ -309,7 +331,7 @@ 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 +623,60 @@ 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,FugitiveStageBlob call s:BlobOverrides()
+<
+                                                *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 committed blob (file) object.
+
+                                                *User_FugitiveObject*
+FugitiveObject          After loading any of the 4 above buffer types.
+
+                                                *User_FugitiveStageBlob*
+FugitiveStageBlob       After loading a staged blob (file) object.  These
+                        buffers are 'modifiable' and oftentimes don't want the
+                        same behavior as the other buffer types.
+
+                                                *User_FugitiveIndex*
+FugitiveIndex           After loading the |fugitive-summary| buffer.
+
+                                                *User_FugitivePager*
+FugitivePager           After loading a temp file created by a command like
+                        :Git --paginate or :Git blame.
+
+                                                *User_FugitiveEditor*
+FugitiveEditor          After a :Git command (e.g., :Git commit) edits a file
+                        (e.g., the commit message).
+
+                                                *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|.
@@ -634,12 +696,19 @@ just one space character longer than the legacy version.
 *:Gfetch*       Superseded by |:Git| fetch.
 *:Glog*         Superseded by |:Gclog|.
 *:Gstatus*      Superseded by |:Git| (with no arguments).
-*:Git!*         Superseded by |:Git_--paginate|.
 *:Gsplit!*      Superseded by |:Git_--paginate|.
 *:Gvsplit!*     Superseded by :vert Git --paginate.
 *: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

@@ -1,6 +1,6 @@
 " fugitive.vim - A Git wrapper so awesome, it should be illegal
 " Maintainer:   Tim Pope <http://tpo.pe/>
-" Version:      3.3
+" Version:      3.4
 " GetLatestVimScripts: 2975 1 :AutoInstall: fugitive.vim
 
 if exists('g:loaded_fugitive')
@@ -10,20 +10,27 @@ 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 < 703
+    return ''
+  elseif !a:0 || type(a:1) == type(0) && a:1 < 0 || a:1 is# get(v:, 'true', -1)
     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\)$')
       return FugitiveExtractGitDir(getcwd())
     elseif (!exists('b:git_dir') || b:git_dir =~# s:bad_git_dir) && empty(&buftype)
       let b:git_dir = FugitiveExtractGitDir(expand('%:p'))
       return b:git_dir
     endif
     return dir =~# s:bad_git_dir ? '' : dir
-  elseif type(a:1) == type(0)
+  elseif type(a:1) == type(0) && a:1 isnot# 0
     if a:1 == bufnr('') && (!exists('b:git_dir') || b:git_dir =~# s:bad_git_dir) && empty(&buftype)
       let b:git_dir = FugitiveExtractGitDir(expand('%:p'))
     endif
@@ -48,7 +55,11 @@ endfunction
 " exists, call FooReal("foo://bar").
 function! FugitiveReal(...) abort
   let file = a:0 ? a:1 : @%
-  if file =~# '^\a\a\+:' || a:0 > 1
+  if type(file) ==# type({})
+    let dir = FugitiveGitDir(file)
+    let tree = s:Tree(dir)
+    return FugitiveVimPath(empty(tree) ? dir : tree)
+  elseif file =~# '^\a\a\+:' || a:0 > 1
     return call('fugitive#Real', [file] + a:000[1:-1])
   elseif file =~# '^/\|^\a:\|^$'
     return file
@@ -65,14 +76,10 @@ 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
-  return fugitive#Find(a:0 ? a:1 : bufnr(''), FugitiveGitDir(a:0 > 1 ? a:2 : -1))
-endfunction
-
-function! FugitivePath(...) abort
-  if a:0 > 1
-    return fugitive#Path(a:1, a:2, FugitiveGitDir(a:0 > 2 ? a:3 : -1))
+  if a:0 && (type(a:1) ==# type({}) || type(a:1) ==# type(0))
+    return call('fugitive#Find', a:000[1:-1] + [FugitiveGitDir(a:1)])
   else
-    return FugitiveReal(a:0 ? a:1 : @%)
+    return fugitive#Find(a:0 ? a:1 : bufnr(''), FugitiveGitDir(a:0 > 1 ? a:2 : -1))
   endif
 endfunction
 
@@ -92,14 +99,24 @@ function! FugitiveParse(...) abort
   throw v:errmsg
 endfunction
 
+" FugitiveGitVersion() queries the version of Git in use.  Pass up to 3
+" arguments to return a Boolean of whether a certain minimum version is
+" available (FugitiveGitVersion(2,3,4) checks for 2.3.4 or higher) or no
+" arguments to get a raw string.
+function! FugitiveGitVersion(...) abort
+  return call('fugitive#GitVersion', a:000)
+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,
@@ -108,16 +125,44 @@ function! FugitiveResult(...) abort
   return call('fugitive#Result', a:000)
 endfunction
 
-" FugitivePrepare() constructs a Git command string which can be executed with
-" functions like system() and commands like :!.  Integer arguments will be
-" treated as buffer numbers, and the appropriate relative path inserted in
-" their place.
+" FugitiveExecute() runs Git with a list of arguments and returns a dictionary
+" with the following keys:
 "
-" If the first argument is a string that looks like a path or an empty string,
-" 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.
+" * "exit_status": The integer exit code of the process.
+" * "stdout": The stdout produced by the process, as a list of lines.
+" * "stderr": The stdout produced by the process, as a list of lines.
+"
+" 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.
+"
+" An optional final argument is a callback Funcref, for asynchronous
+" execution.
+function! FugitiveExecute(args, ...) abort
+  return call('fugitive#Execute', [a:args] + a:000)
+endfunction
+
+" FugitiveShellCommand() turns an array of arugments into a Git command string
+" which can be executed with functions like system() and commands like :!.
+" Integer arguments will be treated as buffer numbers, and the appropriate
+" relative path inserted in their place.
+"
+" 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! FugitiveShellCommand(...) abort
+  return call('fugitive#ShellCommand', a:000)
+endfunction
+
+" FugitivePrepare() is a deprecated alias for FugitiveShellCommand().  If you
+" are using this in conjunction with system(), consider using
+" FugitiveExecute() instead.
 function! FugitivePrepare(...) abort
-  return call('fugitive#Prepare', a:000)
+  if !exists('s:did_prepare_warning')
+    let s:did_prepare_warning = 1
+    echohl WarningMsg
+    unsilent echomsg 'FugitivePrepare() has been superseded by FugitiveShellCommand()'
+    echohl NONE
+  endif
+  return call('fugitive#ShellCommand', a:000)
 endfunction
 
 " FugitiveConfig() get returns an opaque structure that can be passed to other
@@ -125,33 +170,25 @@ 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
+  return call('fugitive#Config', a:000)
 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
@@ -159,39 +196,70 @@ 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
 
+" FugitiveDidChange() triggers a FugitiveChanged event and reloads the summary
+" buffer for the current or given buffer number's repository.  You can also
+" give the result of a FugitiveExecute() and that context will be made
+" available inside the FugitiveChanged() event.
+"
+" Passing the special argument 0 (the number zero) softly expires summary
+" buffers for all repositories.  This can be used after a call to system()
+" with unclear implications.
+function! FugitiveDidChange(...) abort
+  return call('fugitive#DidChange', 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({}) || type(a:1) ==# type('') && a:1 !~# '^\d\+$')
+    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! FugitivePath(...) abort
+  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 : @%)
+  endif
 endfunction
 
 function! FugitiveStatusline(...) abort
-  if empty(get(b:, 'git_dir', ''))
+  if empty(FugitiveGitDir(bufnr('')))
     return ''
   endif
   return fugitive#Statusline()
@@ -202,16 +270,24 @@ 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 +306,14 @@ 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')
@@ -270,7 +351,13 @@ function! s:CeilingDirectories() abort
 endfunction
 
 function! FugitiveExtractGitDir(path) abort
-  let path = s:Slash(a:path)
+  if type(a:path) ==# type({})
+    return get(a:path, 'git_dir', '')
+  elseif type(a:path) == type(0)
+    let path = s:Slash(a:path >= 0 ? bufname(a:path) : bufname(''))
+  else
+    let path = s:Slash(a:path)
+  endif
   if path =~# '^fugitive:'
     return matchstr(path, '\C^fugitive:\%(//\)\=\zs.\{-\}\ze\%(//\|::\|$\)')
   elseif empty(path)
@@ -326,12 +413,18 @@ function! FugitiveExtractGitDir(path) abort
   return ''
 endfunction
 
-function! FugitiveDetect(path) abort
+function! FugitiveDetect(...) abort
+  if v:version < 703
+    return ''
+  endif
   if exists('b:git_dir') && b:git_dir =~# '^$\|' . s:bad_git_dir
     unlet b:git_dir
   endif
+  if a:0 > 1 && a:2 is# 0 && !exists('#User#Fugitive')
+    return ''
+  endif
   if !exists('b:git_dir')
-    let b:git_dir = FugitiveExtractGitDir(a:path)
+    let b:git_dir = FugitiveExtractGitDir(a:0 ? a:1 : bufnr(''))
   endif
   if empty(b:git_dir) || !exists('#User#Fugitive')
     return ''
@@ -381,20 +474,115 @@ 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
-    let file = FugitiveCommonDir(dir) . '/info/projections.json'
+    let file = FugitiveFind('.git/info/projections.json', dir)
     if filereadable(file)
       call projectionist#append(base, file)
     endif
   endif
 endfunction
 
-if v:version + has('patch061') < 703
-  runtime! autoload/fugitive.vim
+let s:addr_other = has('patch-8.1.560') || has('nvim-0.5.0') ? '-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', 0)
+  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'
+elseif exists(':Gstatus') != 2 && !exists('g:fugitive_legacy_commands')
+  exe 'command! -bang -bar     -range=-1' s:addr_other 'Gstatus'
+        \ ' echoerr ":Gstatus has been removed in favor of :Git (with no arguments)"'
+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', 0)
+    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>)'
+  elseif exists(':G' . tolower(s:cmd)) != 2 && !exists('g:fugitive_legacy_commands')
+    exe 'command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#' . s:cmd . 'Complete G' . tolower(s:cmd)
+          \ 'echoerr ":G' . tolower(s:cmd) . ' has been removed in favor of :Git ' . tolower(s:cmd) . '"'
+  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 Glgrep exe fugitive#GrepCommand(0, <count> > 0 ? <count> : 0, +"<range>", <bang>0, "<mods>", <q-args>)'
+
+if exists(':Glog') != 2 && get(g:, 'fugitive_legacy_commands', 0)
+  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'
+elseif exists(':Glog') != 2 && !exists('g:fugitive_legacy_commands')
+  exe 'command! -bang -nargs=? -range=-1 -complete=customlist,fugitive#LogComplete Glog'
+        \ ' echoerr ":Glog has been removed in favor of :Gclog"'
+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>)'
+exe 'command! -bar -bang -nargs=*                          -complete=customlist,fugitive#EditComplete   Gedit    exe fugitive#Open("edit<bang>", 0, "<mods>", <q-args>)'
+exe 'command! -bar -bang -nargs=*                          -complete=customlist,fugitive#ReadComplete   Gpedit   exe fugitive#Open("pedit", <bang>0, "<mods>", <q-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>)'
+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>)'
+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>)'
+
+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>)'
+endif
+exe 'command! -bar -bang -nargs=* -range=-1                -complete=customlist,fugitive#ReadComplete   Gread    exe fugitive#ReadCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)'
+
+exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Gdiffsplit  exe fugitive#Diffsplit(1, <bang>0, "<mods>", <q-args>)'
+exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Ghdiffsplit exe fugitive#Diffsplit(0, <bang>0, "<mods>", <q-args>)'
+exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Gvdiffsplit exe fugitive#Diffsplit(0, <bang>0, "vertical <mods>", <q-args>)'
+
+exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Gw     exe fugitive#WriteCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)'
+exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Gwrite exe fugitive#WriteCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)'
+exe 'command! -bar -bang -nargs=* -complete=customlist,fugitive#EditComplete Gwq    exe fugitive#WqCommand(   <line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)'
+
+exe 'command! -bar -bang -nargs=0 GRemove exe fugitive#RemoveCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)'
+exe 'command! -bar -bang -nargs=0 GDelete exe fugitive#DeleteCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)'
+exe 'command! -bar -bang -nargs=1 -complete=customlist,fugitive#CompleteObject GMove   exe fugitive#MoveCommand(  <line1>, <count>, +"<range>", <bang>0, "<mods>", <q-args>)'
+exe 'command! -bar -bang -nargs=1 -complete=customlist,fugitive#RenameComplete GRename exe fugitive#RenameCommand(<line1>, <count>, +"<range>", <bang>0, "<mods>", <q-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>)'
+        \ '|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>)'
+        \ '|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>)'
+        \ '|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>)'
+        \ '|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>)'
+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>)'
+        \ '|if <bang>1|redraw!|endif|echohl WarningMSG|echomsg ":Gbrowse is deprecated in favor of :GBrowse"|echohl NONE'
+endif
+
+if v:version < 703
+  finish
+endif
+
 let g:io_fugitive = {
       \ 'simplify': function('fugitive#simplify'),
       \ 'resolve': function('fugitive#resolve'),
@@ -415,8 +603,9 @@ let g:io_fugitive = {
 augroup fugitive
   autocmd!
 
-  autocmd BufNewFile,BufReadPost * call FugitiveDetect(expand('<amatch>:p'))
-  autocmd FileType           netrw call FugitiveDetect(fnamemodify(get(b:, 'netrw_curdir', expand('<amatch>')), ':p'))
+  autocmd BufNewFile,BufReadPost *
+        \    call FugitiveDetect(expand('<amatch>:p'), 0)
+  autocmd FileType           netrw call FugitiveDetect(fnamemodify(get(b:, 'netrw_curdir', expand('<afile>:p')), ':p'), 1)
 
   autocmd FileType git
         \ call fugitive#MapCfile()
@@ -427,7 +616,7 @@ augroup fugitive
         \    setlocal foldtext=fugitive#Foldtext() |
         \ endif
   autocmd FileType fugitive
-        \ call fugitive#MapCfile('fugitive#StatusCfile()')
+        \ call fugitive#MapCfile('fugitive#PorcelainCfile()')
   autocmd FileType gitrebase
         \ let &l:include = '^\%(pick\|squash\|edit\|reword\|fixup\|drop\|[pserfd]\)\>' |
         \ if &l:includeexpr !~# 'Fugitive' |
@@ -465,107 +654,18 @@ 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
 
 let s:nowait = v:version >= 704 ? '<nowait>' : ''
 
-function! s:Map(mode, lhs, rhs, ...) abort
-  for mode in split(a:mode, '\zs')
-    let flags = (a:0 ? a:1 : '') . (a:rhs =~# '<Plug>' ? '' : '<script>')
-    let head = a:lhs
-    let tail = ''
-    let keys = get(g:, mode.'remap', {})
-    if type(keys) == type([])
-      return
-    endif
+function! s:Map(mode, lhs, rhs, flags) abort
+  let flags = a:flags . (a:rhs =~# '<Plug>' ? '' : '<script>')
+  let head = a:lhs
+  let tail = ''
+  let keys = get(g:, a:mode.'remap', {})
+  if len(keys) && type(keys) == type({})
     while !empty(head)
       if has_key(keys, head)
         let head = keys[head]
@@ -577,10 +677,10 @@ function! s:Map(mode, lhs, rhs, ...) abort
       let tail = matchstr(head, '<[^<>]*>$\|.$') . tail
       let head = substitute(head, '<[^<>]*>$\|.$', '', '')
     endwhile
-    if flags !~# '<unique>' || empty(mapcheck(head.tail, mode))
-      exe mode.'map' s:nowait flags head.tail a:rhs
-    endif
-  endfor
+  endif
+  if flags !~# '<unique>' || empty(mapcheck(head.tail, a:mode))
+    exe a:mode.'map' s:nowait flags head.tail a:rhs
+  endif
 endfunction
 
 call s:Map('c', '<C-R><C-G>', 'fnameescape(fugitive#Object(@%))', '<expr>')

syntax/fugitive.vim

@@ -7,15 +7,16 @@ 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
 
-syn region fugitiveSection start=/^\%(.*(\d\+)$\)\@=/ contains=fugitiveHeading end=/^$/
+syn region fugitiveSection start=/^\%(.*(\d\++\=)$\)\@=/ contains=fugitiveHeading end=/^$/
 syn cluster fugitiveSection contains=fugitiveSection
-syn match fugitiveHeading /^[A-Z][a-z][^:]*\ze (\d\+)$/ contains=fugitivePreposition contained nextgroup=fugitiveCount skipwhite
-syn match fugitiveCount /(\d\+)/hs=s+1,he=e-1 contained
+syn match fugitiveHeading /^[A-Z][a-z][^:]*\ze (\d\++\=)$/ contains=fugitivePreposition contained nextgroup=fugitiveCount skipwhite
+syn match fugitiveCount /(\d\++\=)/hs=s+1,he=e-1 contained
 syn match fugitivePreposition /\<\%([io]nto\|from\|to\|Rebasing\%( detached\)\=\)\>/ transparent contained nextgroup=fugitiveHash,fugitiveSymbolicRef skipwhite
 
 syn match fugitiveInstruction /^\l\l\+\>/ contained containedin=@fugitiveSection nextgroup=fugitiveHash skipwhite
@@ -26,17 +27,16 @@ 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=/^$/'
+  exe 'syn region fugitive' . s:section . 'Section start=/^\%(' . s:section . ' .*(\d\++\=)$\)\@=/ contains=fugitive' . s:section . 'Heading end=/^$/'
   exe 'syn match fugitive' . s:section . 'Modifier /^[MADRCU?] / contained containedin=fugitive' . s:section . 'Section'
   exe 'syn cluster fugitiveSection add=fugitive' . s:section . 'Section'
-  exe 'syn match fugitive' . s:section . 'Heading /^[A-Z][a-z][^:]*\ze (\d\+)$/ contains=fugitivePreposition contained nextgroup=fugitiveCount skipwhite'
+  exe 'syn match fugitive' . s:section . 'Heading /^[A-Z][a-z][^:]*\ze (\d\++\=)$/ contains=fugitivePreposition contained nextgroup=fugitiveCount skipwhite'
 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