Merge 9e8859d666 into b068eaf1e6

Resolves: https://github.com/tpope/vim-fugitive/issues/2374

LICENSE

@@ -0,0 +1,81 @@
+VIM LICENSE
+
+I)  There are no restrictions on distributing unmodified copies of
+    fugitive.vim except that they must include this license text.  You can
+    also distribute unmodified parts of fugitive.vim, likewise unrestricted
+    except that they must include this license text.  You are also allowed to
+    include executables that you made from the unmodified fugitive.vim
+    sources, plus your own usage examples and Vim scripts.
+
+II) It is allowed to distribute a modified (or extended) version of
+    fugitive.vim, including executables and/or source code, when the following
+    four conditions are met:
+    1) This license text must be included unmodified.
+    2) The modified fugitive.vim must be distributed in one of the following
+       five ways:
+       a) If you make changes to fugitive.vim yourself, you must clearly
+          describe in the distribution how to contact you.  When the
+          maintainer asks you (in any way) for a copy of the modified
+          fugitive.vim you distributed, you must make your changes, including
+          source code, available to the maintainer without fee.  The
+          maintainer reserves the right to include your changes in the
+          official version of fugitive.vim.  What the maintainer will do with
+          your changes and under what license they will be distributed is
+          negotiable.  If there has been no negotiation then this license, or
+          a later version, also applies to your changes. The current
+          maintainer is Bram Moolenaar <Bram@vim.org>.  If this changes it
+          will be announced in appropriate places (most likely vim.sf.net,
+          www.vim.org and/or comp.editors). When it is completely impossible
+          to contact the maintainer, the obligation to send him your changes
+          ceases.  Once the maintainer has confirmed that he has received your
+          changes they will not have to be sent again.
+       b) If you have received a modified fugitive.vim that was distributed as
+          mentioned under a) you are allowed to further distribute it
+          unmodified, as mentioned at I).  If you make additional changes the
+          text under a) applies to those changes.
+       c) Provide all the changes, including source code, with every copy of
+          the modified fugitive.vim you distribute.  This may be done in the
+          form of a context diff.  You can choose what license to use for new
+          code you add.  The changes and their license must not restrict
+          others from making their own changes to the official version of
+          fugitive.vim.
+       d) When you have a modified fugitive.vim which includes changes as
+          mentioned under c), you can distribute it without the source code
+          for the changes if the following three conditions are met:
+          - The license that applies to the changes permits you to distribute
+            the changes to the Vim maintainer without fee or restriction, and
+            permits the Vim maintainer to include the changes in the official
+            version of fugitive.vim without fee or restriction.
+          - You keep the changes for at least three years after last
+            distributing the corresponding modified fugitive.vim.  When the
+            maintainer or someone who you distributed the modified
+            fugitive.vim to asks you (in any way) for the changes within this
+            period, you must make them available to him.
+          - You clearly describe in the distribution how to contact you.  This
+            contact information must remain valid for at least three years
+            after last distributing the corresponding modified fugitive.vim,
+            or as long as possible.
+       e) When the GNU General Public License (GPL) applies to the changes,
+          you can distribute the modified fugitive.vim under the GNU GPL
+          version 2 or any later version.
+    3) A message must be added, at least in the output of the ":version"
+       command and in the intro screen, such that the user of the modified
+       fugitive.vim is able to see that it was modified.  When distributing as
+       mentioned under 2)e) adding the message is only required for as far as
+       this does not conflict with the license used for the changes.
+    4) The contact information as required under 2)a) and 2)d) must not be
+       removed or changed, except that the person himself can make
+       corrections.
+
+III) If you distribute a modified version of fugitive.vim, you are encouraged
+     to use the Vim license for your changes and make them available to the
+     maintainer, including the source code.  The preferred way to do this is
+     by e-mail or by uploading the files to a server and e-mailing the URL. If
+     the number of changes is small (e.g., a modified Makefile) e-mailing a
+     context diff will do.  The e-mail address to be used is
+     <maintainer@vim.org>
+
+IV)  It is not allowed to remove this license from the distribution of the
+     fugitive.vim sources, parts of it or from a modified version.  You may
+     use this license for previous fugitive.vim releases instead of the
+     license that they came with, at your option.

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.
@@ -86,7 +86,8 @@ For more information, see `:help fugitive`.
 
 ## Installation
 
-Install using your favorite package manager, or use Vim's built-in package support:
+Install using your favorite package manager, or use Vim's built-in package
+support:
 
     mkdir -p ~/.vim/pack/tpope/start
     cd ~/.vim/pack/tpope/start
@@ -99,14 +100,20 @@ 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:
+it was removed.  Use `:Git! push` to use Fugitive's own asynchronous
+execution, or retroactively make `:Git push` asynchronous by pressing
+`CTRL-D`.
 
-    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>
+> Why am I getting `core.worktree is required when using an external Git dir`?
+
+Git generally sets `core.worktree` for you automatically when necessary, but
+if you're doing something weird, or using a third-party tool that does
+something weird, you may need to set it manually:
+
+    git config core.worktree "$PWD"
+
+This may be necessary even when simple `git` commands seem to work fine
+without it.
 
 > So I have a symlink and...
 

doc/fugitive.txt

@@ -15,9 +15,18 @@ 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.
+
+                                                *fugitive-summary*
+:Git                    With no arguments, bring up a summary window vaguely
+                        akin to git-status.  If a summary window is already
+                        open for the current repository, it is focused
+                        instead.  Press g?  or see |fugitive-maps| for usage.
+
+                                                *: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
@@ -25,18 +34,24 @@ 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.
 
-                                                *fugitive-summary*
-:Git                    With no arguments, bring up a summary window vaguely
-:G                      akin to git-status.  Press g? or see |fugitive-maps|
-                        for usage.
+:{range}Git! --paginate {args}
+:{range}Git! -p {args}  Run an arbitrary git command, and insert the output
+                        after {range} in the current buffer.
 
                                                 *:Git_blame*
 :Git blame [flags]      Run git-blame [flags] on the current file and open the
@@ -56,12 +71,20 @@ that are part of Git repositories).
                         O     jump to patch or blob in new tab
                         p     jump to patch or blob in preview window
                         -     reblame at commit
-                        ~     reblame at [count]th first grandparent
-                        P     reblame at [count]th parent (like HEAD^[count])
+
+                        The maps |fugitive_P| and |fugitive_~| are also
+                        supported to reblame on a parent commit, but this is
+                        inherently fragile, as the line being blamed will no
+                        longer exist.  The preferred alternative is to use
+                        <CR> to open up the commit, select the corresponding
+                        `-` line that you care about, and press <CR> twice
+                        more to reblame at that line.  Viewing the commit also
+                        gives you additional context as to why the line
+                        changed.
 
                                                 *g:fugitive_dynamic_colors*
                         In the GUI or a 256 color terminal, commit hashes will
-                        highlighted in different colors. To disable this:
+                        be highlighted in different colors. To disable this:
 >
                         let g:fugitive_dynamic_colors = 0
 <
@@ -84,22 +107,33 @@ 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]
+Wrappers for Vim built-ins ~
+
+These all directly map onto a built-in Vim command, and generally have names
+that prepend "G" to the command they are wrapping.  For example, :Ggrep is G
+plus |:grep|.
+
+                                                *: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
                         |quickfix| list.  Jumps to the first commit unless [!]
-                        is given.
+                        is given.  This command wraps |:cfile|.
 
                         The quickfix list can be awkward for many use cases
                         and exhibits extremely poor performance with larger
-                        data sets.  Consider using |:Git| log instead.
+                        data sets.  Consider using |:Git| log --oneline
+                        instead.
 
 :{range}Gclog[!] [args] Use git-log -L to load previous revisions of the given
                         range of the current file into the |quickfix| list.
@@ -132,6 +166,9 @@ that are part of Git repositories).
                                                 *:Gpedit*
 :Gpedit [object]        |:pedit| a |fugitive-object|.
 
+                                                *:Gdrop*
+:Gdrop [object]         |:drop| a |fugitive-object|.
+
                                                 *:Gread* *fugitive-:Gr*
 :Gread [object]         Empty the buffer and |:read| a |fugitive-object|.
                         When the argument is omitted, this is similar to
@@ -140,12 +177,6 @@ that are part of Git repositories).
 
 :{range}Gread [object]  |:read| in a |fugitive-object| after {range}.
 
-                                                *:Gread!* *fugitive-:Gr!*
-:Gread! [args]          Empty the buffer and |:read| the output of a Git
-                        command.  For example, :Gread! show HEAD:%.
-
-:{range}Gread! [args]   |:read| the output of a Git command after {range}.
-
                                                 *:Gwrite* *fugitive-:Gw*
 :Gwrite                 Write to the current file's path and stage the results.
                         When run in a work tree file, it is effectively git
@@ -170,10 +201,10 @@ 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 +221,17 @@ 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|.
+
+Other commands ~
+
+These do not directly correspond to any built-in Vim command, and have a
+capital letter after the "G" to convey this. For example, the file move
+operation has nothing to do with the |:move| built-in, so it is named :GMove,
+not :Gmove.
 
                                                 *:GMove*
 :GMove {destination}    Wrapper around git-mv that renames the buffer
@@ -206,8 +247,9 @@ that are part of Git repositories).
                         passed.  Add a ! to pass -f and forcefully discard the
                         buffer.
 
-                                                *:GRemove*
+                                                *:GRemove* *:GUnlink*
 :GRemove                Like |:GDelete|, but keep the (now empty) buffer around.
+:GUnlink
 
                                                 *:GBrowse*
 :GBrowse                Open the current file, blob, tree, commit, or tag
@@ -297,9 +339,10 @@ 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.
+dq                      Close all but the currently focused diff buffer, and
+                        invoke |:diffoff|!.
 
                                                 *fugitive_d?*
 d?                      Show this help.
@@ -309,7 +352,7 @@ 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
@@ -337,6 +380,9 @@ p                       Open the file or |fugitive-object| under the cursor in
 
                                                 *fugitive_P*
 P                       Open the current file in the [count]th parent.
+                        Experimental:  In the "Unpushed" section of the status
+                        buffer, this will populate the command line with a
+                        ":Git push" command for the commit under the cursor.
 
                                                 *fugitive_C*
 C                       Open the commit containing the current file.
@@ -419,15 +465,18 @@ Commit maps ~
 
 cc                      Create a commit.
 
+cvc                     Create a commit with -v.
+
 ca                      Amend the last commit and edit the message.
 
+cva                     Amend the last commit with -v.
+
 ce                      Amend the last commit without editing the message.
 
 cw                      Reword the last commit.
 
-cvc                     Create a commit with -v.
-
-cva                     Amend the last commit with -v
+cW                      Create an `amend!` commit that rewords the commit
+                        under the cursor.
 
 cf                      Create a `fixup!` commit for the commit under the
                         cursor.
@@ -441,8 +490,8 @@ cs                      Create a `squash!` commit for the commit under the
 cS                      Create a `squash!` commit for the commit under the
                         cursor and immediately rebase it.
 
-cA                      Create a `squash!` commit for the commit under the
-                        cursor and edit the message.
+cn                      Create a `squash!` commit for the commit under the
+(formerly cA)           cursor and edit the message.
 
 c<Space>                Populate command line with ":Git commit ".
 
@@ -478,9 +527,11 @@ Stash maps ~
 czz                     Push stash.  Pass a [count] of 1 to add
                         `--include-untracked` or 2 to add `--all`.
 
-czw                     Push stash of worktree.  Like `czz` with
+czw                     Push stash of the work-tree.  Like `czz` with
                         `--keep-index`.
 
+czs                     Push stash of the stage.  Does not accept a count.
+
 czA                     Apply topmost stash, or stash@{count}.
 
 cza                     Apply topmost stash, or stash@{count}, preserving the
@@ -601,20 +652,60 @@ 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 +725,19 @@ 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 has been 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:      3.7
 " GetLatestVimScripts: 2975 1 :AutoInstall: fugitive.vim
 
 if exists('g:loaded_fugitive')
@@ -10,29 +10,36 @@ 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 || 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('')) && &filetype !=# 'netrw' || &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'))
+    elseif (!exists('b:git_dir') || b:git_dir =~# s:bad_git_dir) && &buftype =~# '^\%(nowrite\)\=$'
+      let b:git_dir = FugitiveExtractGitDir(bufnr(''))
       return b:git_dir
     endif
     return dir =~# s:bad_git_dir ? '' : dir
-  elseif type(a:1) == type(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'))
+  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) && &buftype =~# '^\%(nowrite\)\=$'
+      let b:git_dir = FugitiveExtractGitDir(a:1)
     endif
     let dir = getbufvar(a:1, 'git_dir')
     return dir =~# s:bad_git_dir ? '' : dir
   elseif type(a:1) == type('')
     return substitute(s:Slash(a:1), '/$', '', '')
   elseif type(a:1) == type({})
-    return get(a:1, 'git_dir', '')
+    return get(a:1, 'fugitive_dir', get(a:1, 'git_dir', ''))
   else
     return ''
   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 s:VimSlash(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
 
@@ -81,25 +88,34 @@ endfunction
 " the inverse of FugitiveFind().
 function! FugitiveParse(...) abort
   let path = s:Slash(a:0 ? a:1 : @%)
-  if path !~# '^fugitive:'
+  if path !~# '^fugitive://'
     return ['', '']
   endif
-  let vals = matchlist(path, '\c^fugitive:\%(//\)\=\(.\{-\}\)\%(//\|::\)\(\x\{40,\}\|[0-3]\)\(/.*\)\=$')
-  if len(vals)
-    return [(vals[2] =~# '^.$' ? ':' : '') . vals[2] . substitute(vals[3], '^/', ':', ''), vals[1]]
+  let [rev, dir] = fugitive#Parse(path)
+  if !empty(dir)
+    return [rev, dir]
   endif
-  let v:errmsg = 'fugitive: invalid Fugitive URL ' . path
-  throw v:errmsg
+  throw 'fugitive: invalid Fugitive URL ' . path
+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 +124,31 @@ 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.
-function! FugitivePrepare(...) abort
-  return call('fugitive#Prepare', a:000)
+" * "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 arguments 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
 
 " FugitiveConfig() get returns an opaque structure that can be passed to other
@@ -125,33 +156,25 @@ 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] : [])), -1, 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
@@ -159,86 +182,196 @@ 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
 
+" FugitiveRemote() returns a data structure parsed from the remote URL.
+" For example, for remote URL "https://me@example.com:1234/repo.git", the
+" returned dictionary will contain the following:
+"
+" * "scheme": "https"
+" * "authority": "user@example.com:1234"
+" * "path": "/repo.git" (for SSH URLs this may be a relative path)
+" * "pathname": "/repo.git" (always coerced to absolute path)
+" * "host": "example.com:1234"
+" * "hostname": "example.com"
+" * "port": "1234"
+" * "user": "me"
+" * "path": "/repo.git"
+" * "url": "https://me@example.com:1234/repo.git"
+function! FugitiveRemote(...) abort
+  return call('fugitive#Remote', 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()
 endfunction
 
-function! FugitiveCommonDir(...) abort
-  let dir = FugitiveGitDir(a:0 ? a:1 : -1)
+let s:resolved_git_dirs = {}
+function! FugitiveActualDir(...) abort
+  let dir = call('FugitiveGitDir', a:000)
   if empty(dir)
     return ''
   endif
-  return fugitive#CommonDir(dir)
+  if !has_key(s:resolved_git_dirs, dir)
+    let s:resolved_git_dirs[dir] = s:ResolveGitDir(dir)
+  endif
+  return empty(s:resolved_git_dirs[dir]) ? dir : s:resolved_git_dirs[dir]
+endfunction
+
+let s:commondirs = {}
+function! FugitiveCommonDir(...) abort
+  let dir = call('FugitiveActualDir', a:000)
+  if empty(dir)
+    return ''
+  endif
+  if has_key(s:commondirs, dir)
+    return s:commondirs[dir]
+  endif
+  if getfsize(dir . '/HEAD') >= 10
+    let cdir = get(s:ReadFile(dir . '/commondir', 1), 0, '')
+    if cdir =~# '^/\|^\a:/'
+      let s:commondirs[dir] = s:Slash(FugitiveVimPath(cdir))
+    elseif len(cdir)
+      let s:commondirs[dir] = simplify(dir . '/' . cdir)
+    else
+      let s:commondirs[dir] = dir
+    endif
+  else
+    let s:commondirs[dir] = dir
+  endif
+  return s:commondirs[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
 
+function! s:ReadFile(path, line_count) abort
+  if v:version < 800 && !filereadable(a:path)
+    return []
+  endif
+  try
+    return readfile(a:path, 'b', a:line_count)
+  catch
+    return []
+  endtry
+endfunction
+
 let s:worktree_for_dir = {}
 let s:dir_for_worktree = {}
 function! s:Tree(path) abort
-  let dir = a:path
-  if dir =~# '/\.git$'
-    return len(dir) ==# 5 ? '/' : dir[0:-6]
-  elseif dir ==# ''
+  if a:path =~# '/\.git$'
+    return len(a:path) ==# 5 ? '/' : a:path[0:-6]
+  elseif a:path ==# ''
     return ''
   endif
+  let dir = FugitiveActualDir(a:path)
   if !has_key(s:worktree_for_dir, dir)
     let s:worktree_for_dir[dir] = ''
-    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 ext_wtc_pat = 'v:val =~# "^\\s*worktreeConfig *= *\\%(true\\|yes\\|on\\|1\\) *$"'
+    let config = s:ReadFile(dir . '/config', 50)
+    if len(config)
+      let ext_wtc_config = filter(copy(config), ext_wtc_pat)
+      if len(ext_wtc_config) == 1 && filereadable(dir . '/config.worktree')
+         let config += s:ReadFile(dir . '/config.worktree', 50)
       endif
-    elseif filereadable(dir . '/gitdir')
-      let worktree = fnamemodify(FugitiveVimPath(readfile(dir . '/gitdir')[0]), ':h')
+    else
+      let worktree = fnamemodify(FugitiveVimPath(get(s:ReadFile(dir . '/gitdir', 1), '0', '')), ':h')
       if worktree ==# '.'
         unlet! worktree
       endif
+      if len(filter(s:ReadFile(FugitiveCommonDir(dir) . '/config', 50), ext_wtc_pat))
+        let config = s:ReadFile(dir . '/config.worktree', 50)
+      endif
+    endif
+    if len(config)
+      let wt_config = filter(copy(config), 'v:val =~# "^\\s*worktree *="')
+      if len(wt_config)
+        let worktree = FugitiveVimPath(matchstr(wt_config[0], '= *\zs.*'))
+      elseif !exists('worktree')
+        call filter(config,'v:val =~# "^\\s*bare *= *true *$"')
+        if empty(config)
+          let s:worktree_for_dir[dir] = 0
+        endif
+      endif
     endif
     if exists('worktree')
       let s:worktree_for_dir[dir] = s:Slash(resolve(worktree))
@@ -260,42 +393,60 @@ function! s:CeilingDirectories() abort
       if empty(dir)
         let resolve = 0
       elseif resolve
-        call add(s:ceiling_directories, resolve(dir))
+        call add(s:ceiling_directories, s:Slash(resolve(dir)))
       else
-        call add(s:ceiling_directories, dir)
+        call add(s:ceiling_directories, s:Slash(dir))
       endif
     endfor
   endif
-  return s:ceiling_directories + get(g:, 'ceiling_directories', [])
+  return s:ceiling_directories + get(g:, 'ceiling_directories', [s:Slash(fnamemodify(expand('~'), ':h'))])
+endfunction
+
+function! s:ResolveGitDir(git_dir) abort
+  let type = getftype(a:git_dir)
+  if type ==# 'dir' && FugitiveIsGitDir(a:git_dir)
+    return a:git_dir
+  elseif type ==# 'link' && FugitiveIsGitDir(a:git_dir)
+    return resolve(a:git_dir)
+  elseif type !=# ''
+    let line = get(s:ReadFile(a:git_dir, 1), 0, '')
+    let file_dir = s:Slash(FugitiveVimPath(matchstr(line, '^gitdir: \zs.*')))
+    if file_dir !~# '^/\|^\a:\|^$' && a:git_dir =~# '/\.git$' && FugitiveIsGitDir(a:git_dir[0:-5] . file_dir)
+      return simplify(a:git_dir[0:-5] . file_dir)
+    elseif file_dir =~# '^/\|^\a:' && FugitiveIsGitDir(file_dir)
+      return file_dir
+    endif
+  endif
+  return ''
 endfunction
 
 function! FugitiveExtractGitDir(path) abort
-  let path = s:Slash(a:path)
-  if path =~# '^fugitive:'
-    return matchstr(path, '\C^fugitive:\%(//\)\=\zs.\{-\}\ze\%(//\|::\|$\)')
+  if type(a:path) ==# type({})
+    return get(a:path, 'fugitive_dir', get(a:path, 'git_dir', ''))
+  elseif type(a:path) == type(0)
+    let path = s:Slash(a:path > 0 ? bufname(a:path) : bufname(''))
+    if getbufvar(a:path, '&filetype') ==# 'netrw'
+      let path = s:Slash(getbufvar(a:path, 'netrw_curdir', path))
+    endif
+  else
+    let path = s:Slash(a:path)
+  endif
+  if path =~# '^fugitive://'
+    return fugitive#Parse(path)[1]
   elseif empty(path)
     return ''
-  elseif isdirectory(path)
-    let path = fnamemodify(path, ':p:s?/$??')
-  else
-    let path = fnamemodify(path, ':p:h:s?/$??')
   endif
   let pre = substitute(matchstr(path, '^\a\a\+\ze:'), '^.', '\u&', '')
   if len(pre) && exists('*' . pre . 'Real')
-    let path = s:Slash({pre}Real(path))
-  endif
-  let root = resolve(path)
-  if root !=# path
-    silent! exe (haslocaldir() ? 'lcd' : exists(':tcd') && haslocaldir(-1) ? 'tcd' : 'cd') '.'
+    let path = {pre}Real(path)
   endif
+  let root = s:Slash(fnamemodify(path, ':p:h'))
   let previous = ""
   let env_git_dir = len($GIT_DIR) ? s:Slash(simplify(fnamemodify(FugitiveVimPath($GIT_DIR), ':p:s?[\/]$??'))) : ''
   call s:Tree(env_git_dir)
-  while root !=# previous
-    if root =~# '\v^//%([^/]+/?)?$'
-      break
-    endif
-    if index(s:CeilingDirectories(), root) >= 0
+  let ceiling_directories = s:CeilingDirectories()
+  while root !=# previous && root !~# '^$\|^//[^/]*$'
+    if index(ceiling_directories, root) >= 0
       break
     endif
     if root ==# $GIT_WORK_TREE && FugitiveIsGitDir(env_git_dir)
@@ -304,20 +455,12 @@ function! FugitiveExtractGitDir(path) abort
       return s:dir_for_worktree[root]
     endif
     let dir = substitute(root, '[\/]$', '', '') . '/.git'
-    let type = getftype(dir)
-    if type ==# 'dir' && FugitiveIsGitDir(dir)
-      return dir
-    elseif type ==# 'link' && FugitiveIsGitDir(dir)
-      return resolve(dir)
-    elseif type !=# '' && filereadable(dir)
-      let line = get(readfile(dir, '', 1), 0, '')
-      let file_dir = s:Slash(FugitiveVimPath(matchstr(line, '^gitdir: \zs.*')))
-      if file_dir !~# '^/\|^\a:' && FugitiveIsGitDir(root . '/' . file_dir)
-        return simplify(root . '/' . file_dir)
-      elseif len(file_dir) && FugitiveIsGitDir(file_dir)
-        return file_dir
-      endif
+    let resolved = s:ResolveGitDir(dir)
+    if !empty(resolved)
+      let s:resolved_git_dirs[dir] = resolved
+      return dir is# resolved || s:Tree(resolved) is# 0 ? dir : resolved
     elseif FugitiveIsGitDir(root)
+      let s:resolved_git_dirs[root] = root
       return root
     endif
     let previous = root
@@ -326,52 +469,57 @@ function! FugitiveExtractGitDir(path) abort
   return ''
 endfunction
 
-function! FugitiveDetect(path) abort
+function! FugitiveDetect(...) abort
+  if v:version < 704
+    return ''
+  endif
   if exists('b:git_dir') && b:git_dir =~# '^$\|' . s:bad_git_dir
     unlet b:git_dir
   endif
   if !exists('b:git_dir')
-    let b:git_dir = FugitiveExtractGitDir(a:path)
-  endif
-  if empty(b:git_dir) || !exists('#User#Fugitive')
-    return ''
-  endif
-  if v:version >= 704 || (v:version == 703 && has('patch442'))
-    doautocmd <nomodeline> User Fugitive
-  elseif &modelines > 0
-    let modelines = &modelines
-    try
-      set modelines=0
-      doautocmd User Fugitive
-    finally
-      let &modelines = modelines
-    endtry
-  else
-    doautocmd User Fugitive
+    let b:git_dir = FugitiveExtractGitDir(a:0 ? a:1 : bufnr(''))
   endif
   return ''
 endfunction
 
-function! FugitiveVimPath(path) abort
-  if exists('+shellslash') && !&shellslash
-    return tr(a:path, '/', '\')
-  else
-    return a:path
-  endif
-endfunction
-
 function! FugitiveGitPath(path) abort
   return s:Slash(a:path)
 endfunction
 
 if exists('+shellslash')
+
   function! s:Slash(path) abort
     return tr(a:path, '\', '/')
   endfunction
+
+  function! s:VimSlash(path) abort
+    return tr(a:path, '\/', &shellslash ? '//' : '\\')
+  endfunction
+
+  function FugitiveVimPath(path) abort
+    return tr(a:path, '\/', &shellslash ? '//' : '\\')
+  endfunction
+
 else
+
   function! s:Slash(path) abort
     return a:path
   endfunction
+
+  function! s:VimSlash(path) abort
+    return a:path
+  endfunction
+
+  if has('win32unix') && filereadable('/git-bash.exe')
+    function! FugitiveVimPath(path) abort
+      return substitute(a:path, '^\(\a\):', '/\l\1', '')
+    endfunction
+  else
+    function! FugitiveVimPath(path) abort
+      return a:path
+    endfunction
+  endif
+
 endif
 
 function! s:ProjectionistDetect() abort
@@ -381,20 +529,117 @@ 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'
+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>)'
+  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>)'
+
+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#EditComplete   Gpedit   exe fugitive#Open("pedit", <bang>0, "<mods>", <q-args>)'
+exe 'command! -bar -bang -nargs=* -range=-1' s:addr_other '-complete=customlist,fugitive#EditComplete   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#EditComplete   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#EditComplete   Gtabedit exe fugitive#Open((<count> >= 0 ? <count> : "")."tabedit", <bang>0, "<mods>", <q-args>)'
+exe 'command! -bar -bang -nargs=*                          -complete=customlist,fugitive#EditComplete   Gdrop    exe fugitive#DropCommand(<line1>, <count>, +"<range>", <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 GUnlink exe fugitive#UnlinkCommand(<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', 0)
+  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'
+elseif exists(':Gremove') != 2 && !exists('g:fugitive_legacy_commands')
+  exe 'command! -bar -bang -nargs=0 Gremove echoerr ":Gremove has been removed in favor of :GRemove"'
+endif
+if exists(':Gdelete') != 2 && get(g:, 'fugitive_legacy_commands', 0)
+  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'
+elseif exists(':Gdelete') != 2 && !exists('g:fugitive_legacy_commands')
+  exe 'command! -bar -bang -nargs=0 Gdelete echoerr ":Gdelete has been removed in favor of :GDelete"'
+endif
+if exists(':Gmove') != 2 && get(g:, 'fugitive_legacy_commands', 0)
+  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'
+elseif exists(':Gmove') != 2 && !exists('g:fugitive_legacy_commands')
+  exe 'command! -bar -bang -nargs=? -complete=customlist,fugitive#CompleteObject Gmove'
+        \ 'echoerr ":Gmove has been removed in favor of :GMove"'
+endif
+if exists(':Grename') != 2 && get(g:, 'fugitive_legacy_commands', 0)
+  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'
+elseif exists(':Grename') != 2 && !exists('g:fugitive_legacy_commands')
+  exe 'command! -bar -bang -nargs=? -complete=customlist,fugitive#RenameComplete Grename'
+        \ 'echoerr ":Grename has been removed in favor of :GRename"'
+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', 0)
+  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'
+elseif exists(':Gbrowse') != 2 && !exists('g:fugitive_legacy_commands')
+  exe 'command! -bar -bang -range=-1 -nargs=* -complete=customlist,fugitive#CompleteObject Gbrowse'
+        \ 'echoerr ":Gbrowse has been removed in favor of :GBrowse"'
+endif
+
+if v:version < 704
+  finish
+endif
+
 let g:io_fugitive = {
       \ 'simplify': function('fugitive#simplify'),
       \ 'resolve': function('fugitive#resolve'),
@@ -415,8 +660,15 @@ 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 *
+        \ if exists('b:git_dir') && b:git_dir =~# '^$\|' . s:bad_git_dir |
+        \   unlet b:git_dir |
+        \ endif
+  autocmd FileType           netrw
+        \ if exists('b:git_dir') && b:git_dir =~# '^$\|' . s:bad_git_dir |
+        \   unlet b:git_dir |
+        \ endif
+  autocmd BufFilePost            *  unlet! b:git_dir
 
   autocmd FileType git
         \ call fugitive#MapCfile()
@@ -427,7 +679,7 @@ 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' |
@@ -436,28 +688,31 @@ augroup fugitive
         \ endif |
         \ let b:undo_ftplugin = get(b:, 'undo_ftplugin', 'exe') . '|setl inex= inc='
 
-  autocmd BufReadCmd index{,.lock}
+  autocmd BufReadCmd index{,.lock} nested
         \ if FugitiveIsGitDir(expand('<amatch>:p:h')) |
         \   let b:git_dir = s:Slash(expand('<amatch>:p:h')) |
-        \   exe fugitive#BufReadStatus() |
+        \   exe fugitive#BufReadStatus(v:cmdbang) |
+        \   echohl WarningMSG |
+        \   echo "fugitive: Direct editing of .git/" . expand('%:t') . " is deprecated" |
+        \   echohl NONE |
         \ elseif filereadable(expand('<amatch>')) |
         \   silent doautocmd BufReadPre |
-        \   keepalt read <amatch> |
-        \   1delete_ |
+        \   keepalt noautocmd read <amatch> |
+        \   silent 1delete_ |
         \   silent doautocmd BufReadPost |
         \ else |
         \   silent doautocmd BufNewFile |
         \ endif
 
-  autocmd BufReadCmd    fugitive://*//*             exe fugitive#BufReadCmd() |
+  autocmd BufReadCmd   fugitive://*          nested exe fugitive#BufReadCmd() |
         \ if &path =~# '^\.\%(,\|$\)' |
         \   let &l:path = substitute(&path, '^\.,\=', '', '') |
         \ endif
-  autocmd BufWriteCmd   fugitive://*//[0-3]/*       exe fugitive#BufWriteCmd()
-  autocmd FileReadCmd   fugitive://*//*             exe fugitive#FileReadCmd()
-  autocmd FileWriteCmd  fugitive://*//[0-3]/*       exe fugitive#FileWriteCmd()
+  autocmd BufWriteCmd  fugitive://*          nested exe fugitive#BufWriteCmd()
+  autocmd FileReadCmd  fugitive://*          nested exe fugitive#FileReadCmd()
+  autocmd FileWriteCmd fugitive://*          nested exe fugitive#FileWriteCmd()
   if exists('##SourceCmd')
-    autocmd SourceCmd     fugitive://*//*    nested exe fugitive#SourceCmd()
+    autocmd SourceCmd     fugitive://*       nested exe fugitive#SourceCmd()
   endif
 
   autocmd User Flags call Hoist('buffer', function('FugitiveStatusline'))
@@ -465,107 +720,19 @@ 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
+nmap <script><silent> <Plug>fugitive:y<C-G> :<C-U>call setreg(v:register, fugitive#Object(@%))<CR>
+nmap <script> <Plug>fugitive: <Nop>
 
 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>') . '<nowait>'
+  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 +744,10 @@ 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 empty(mapcheck(head.tail, a:mode))
+    exe a:mode.'map' 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=/^$/ fold
 syn cluster fugitiveSection contains=fugitiveSection
-syn match fugitiveHeading /^[A-Z][a-z][^:]*\ze (\d\+)$/ 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=/^$/ fold'
   exe 'syn match fugitive' . s:section . 'Modifier /^[MADRCU?] / contained containedin=fugitive' . s:section . 'Section'
   exe 'syn cluster fugitiveSection add=fugitive' . s:section . 'Section'
-  exe 'syn match fugitive' . s:section . 'Heading /^[A-Z][a-z][^:]*\ze (\d\+)$/ 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