3 files changed, 571 insertions, 0 deletions
diff --git a/.vim/pack/vendor/start/nerdtree/nerdtree_plugin/exec_menuitem.vim b/.vim/pack/vendor/start/nerdtree/nerdtree_plugin/exec_menuitem.vim
new file mode 100644
index 0000000..fb6c486
--- /dev/null
+++ b/.vim/pack/vendor/start/nerdtree/nerdtree_plugin/exec_menuitem.vim
@@ -0,0 +1,40 @@
+" ============================================================================
+" File:        exec_menuitem.vim
+" Description: plugin for NERD Tree that provides an execute file menu item
+" Maintainer:  Martin Grenfell <martin.grenfell at gmail dot com>
+" License:     This program is free software. It comes without any warranty,
+"              to the extent permitted by applicable law. You can redistribute
+"              it and/or modify it under the terms of the Do What The Fuck You
+"              Want To Public License, Version 2, as published by Sam Hocevar.
+"              See http://sam.zoy.org/wtfpl/COPYING for more details.
+"
+" ============================================================================
+if exists('g:loaded_nerdtree_exec_menuitem')
+    finish
+endif
+let g:loaded_nerdtree_exec_menuitem = 1
+call NERDTreeAddMenuItem({
+            \ 'text': '(!)Execute file',
+            \ 'shortcut': '!',
+            \ 'callback': 'NERDTreeExecFile',
+            \ 'isActiveCallback': 'NERDTreeExecFileActive' })
+function! NERDTreeExecFileActive()
+    let node = g:NERDTreeFileNode.GetSelected()
+    return !node.path.isDirectory && node.path.isExecutable
+endfunction
+function! NERDTreeExecFile()
+    let treenode = g:NERDTreeFileNode.GetSelected()
+    echo "==========================================================\n"
+    echo "Complete the command to execute (add arguments etc):\n"
+    let cmd = treenode.path.str({'escape': 1})
+    let cmd = input(':!', cmd . ' ')
+    if cmd !=# ''
+        exec ':!' . cmd
+    else
+        echo 'Aborted'
+    endif
+endfunction
diff --git a/.vim/pack/vendor/start/nerdtree/nerdtree_plugin/fs_menu.vim b/.vim/pack/vendor/start/nerdtree/nerdtree_plugin/fs_menu.vim
new file mode 100644
index 0000000..05bee60
--- /dev/null
+++ b/.vim/pack/vendor/start/nerdtree/nerdtree_plugin/fs_menu.vim
@@ -0,0 +1,484 @@
+" ============================================================================
+" File:        fs_menu.vim
+" Description: plugin for the NERD Tree that provides a file system menu
+" Maintainer:  Martin Grenfell <martin.grenfell at gmail dot com>
+" License:     This program is free software. It comes without any warranty,
+"              to the extent permitted by applicable law. You can redistribute
+"              it and/or modify it under the terms of the Do What The Fuck You
+"              Want To Public License, Version 2, as published by Sam Hocevar.
+"              See http://sam.zoy.org/wtfpl/COPYING for more details.
+"
+" ============================================================================
+if exists('g:loaded_nerdtree_fs_menu')
+    finish
+endif
+let g:loaded_nerdtree_fs_menu = 1
+"Automatically delete the buffer after deleting or renaming a file
+if !exists('g:NERDTreeAutoDeleteBuffer')
+    let g:NERDTreeAutoDeleteBuffer = 0
+endif
+call NERDTreeAddMenuItem({'text': '(a)dd a childnode', 'shortcut': 'a', 'callback': 'NERDTreeAddNode'})
+call NERDTreeAddMenuItem({'text': '(m)ove the current node', 'shortcut': 'm', 'callback': 'NERDTreeMoveNode'})
+call NERDTreeAddMenuItem({'text': '(d)elete the current node', 'shortcut': 'd', 'callback': 'NERDTreeDeleteNode'})
+if has('gui_mac') || has('gui_macvim') || has('mac')
+    call NERDTreeAddMenuItem({'text': '(r)eveal in Finder the current node', 'shortcut': 'r', 'callback': 'NERDTreeRevealInFinder'})
+    call NERDTreeAddMenuItem({'text': '(o)pen the current node with system editor', 'shortcut': 'o', 'callback': 'NERDTreeExecuteFile'})
+    call NERDTreeAddMenuItem({'text': '(q)uicklook the current node', 'shortcut': 'q', 'callback': 'NERDTreeQuickLook'})
+endif
+if executable('xdg-open')
+    call NERDTreeAddMenuItem({'text': '(r)eveal the current node in file manager', 'shortcut': 'r', 'callback': 'NERDTreeRevealFileLinux'})
+    call NERDTreeAddMenuItem({'text': '(o)pen the current node with system editor', 'shortcut': 'o', 'callback': 'NERDTreeExecuteFileLinux'})
+endif
+if nerdtree#runningWindows()
+    call NERDTreeAddMenuItem({'text': '(o)pen the current node with system editor', 'shortcut': 'o', 'callback': 'NERDTreeExecuteFileWindows'})
+endif
+if g:NERDTreePath.CopyingSupported()
+    call NERDTreeAddMenuItem({'text': '(c)opy the current node', 'shortcut': 'c', 'callback': 'NERDTreeCopyNode'})
+endif
+call NERDTreeAddMenuItem({'text': (has('clipboard')?'copy (p)ath to clipboard':'print (p)ath to screen'), 'shortcut': 'p', 'callback': 'NERDTreeCopyPath'})
+if has('unix') || has('osx')
+    call NERDTreeAddMenuItem({'text': '(l)ist the current node', 'shortcut': 'l', 'callback': 'NERDTreeListNode'})
+else
+    call NERDTreeAddMenuItem({'text': '(l)ist the current node', 'shortcut': 'l', 'callback': 'NERDTreeListNodeWin32'})
+endif
+if exists('*system')
+    call NERDTreeAddMenuItem({'text': 'Run (s)ystem command in this directory', 'shortcut':'s', 'callback': 'NERDTreeSystemCommand'})
+endif
+"FUNCTION: s:inputPrompt(action){{{1
+"returns the string that should be prompted to the user for the given action
+"
+"Args:
+"action: the action that is being performed, e.g. 'delete'
+function! s:inputPrompt(action)
+    if a:action ==# 'add'
+        let title = 'Add a childnode'
+        let info = "Enter the dir/file name to be created. Dirs end with a '/'"
+        let minimal = 'Add node:'
+    elseif a:action ==# 'copy'
+        let title = 'Copy the current node'
+        let info = 'Enter the new path to copy the node to:'
+        let minimal = 'Copy to:'
+    elseif a:action ==# 'delete'
+        let title = 'Delete the current node'
+        let info = 'Are you sure you wish to delete the node:'
+        let minimal = 'Delete?'
+    elseif a:action ==# 'deleteNonEmpty'
+        let title = 'Delete the current node'
+        let info =  "STOP! Directory is not empty! To delete, type 'yes'"
+        let minimal = 'Delete directory?'
+    elseif a:action ==# 'move'
+        let title = 'Rename the current node'
+        let info = 'Enter the new path for the node:'
+        let minimal = 'Move to:'
+    endif
+    if g:NERDTreeMenuController.isMinimal()
+        redraw! " Clear the menu
+        return minimal . ' '
+    else
+        let divider = '=========================================================='
+        return title . "\n" . divider . "\n" . info . "\n"
+    end
+endfunction
+"FUNCTION: s:promptToDelBuffer(bufnum, msg){{{1
+"prints out the given msg and, if the user responds by pushing 'y' then the
+"buffer with the given bufnum is deleted
+"
+"Args:
+"bufnum: the buffer that may be deleted
+"msg: a message that will be echoed to the user asking them if they wish to
+"     del the buffer
+function! s:promptToDelBuffer(bufnum, msg)
+    echo a:msg
+    if g:NERDTreeAutoDeleteBuffer || nr2char(getchar()) ==# 'y'
+        " 1. ensure that all windows which display the just deleted filename
+        " now display an empty buffer (so a layout is preserved).
+        " Is not it better to close single tabs with this file only ?
+        let s:originalTabNumber = tabpagenr()
+        let s:originalWindowNumber = winnr()
+        " Go to the next buffer in buffer list if at least one extra buffer is listed
+        " Otherwise open a new empty buffer
+        if v:version >= 800
+            let l:listedBufferCount = len(getbufinfo({'buflisted':1}))
+        elseif v:version >= 702
+            let l:listedBufferCount = len(filter(range(1, bufnr('$')), 'buflisted(v:val)'))
+        else
+            " Ignore buffer count in this case to make sure we keep the old
+            " behavior
+            let l:listedBufferCount = 0
+        endif
+        if l:listedBufferCount > 1
+            call nerdtree#exec('tabdo windo if winbufnr(0) ==# ' . a:bufnum . " | exec ':bnext! ' | endif", 1)
+        else
+            call nerdtree#exec('tabdo windo if winbufnr(0) ==# ' . a:bufnum . " | exec ':enew! ' | endif", 1)
+        endif
+        call nerdtree#exec('tabnext ' . s:originalTabNumber, 1)
+        call nerdtree#exec(s:originalWindowNumber . 'wincmd w', 1)
+        " 3. We don't need a previous buffer anymore
+        call nerdtree#exec('bwipeout! ' . a:bufnum, 0)
+    endif
+endfunction
+"FUNCTION: s:renameBuffer(bufNum, newNodeName, isDirectory){{{1
+"The buffer with the given bufNum is replaced with a new one
+"
+"Args:
+"bufNum: the buffer that may be deleted
+"newNodeName: the name given to the renamed node
+"isDirectory: determines how to do the create the new filenames
+function! s:renameBuffer(bufNum, newNodeName, isDirectory)
+    if a:isDirectory
+        let quotedFileName = fnameescape(a:newNodeName . '/' . fnamemodify(bufname(a:bufNum),':t'))
+        let editStr = g:NERDTreePath.New(a:newNodeName . '/' . fnamemodify(bufname(a:bufNum),':t')).str({'format': 'Edit'})
+    else
+        let quotedFileName = fnameescape(a:newNodeName)
+        let editStr = g:NERDTreePath.New(a:newNodeName).str({'format': 'Edit'})
+    endif
+    " 1. ensure that a new buffer is loaded
+    call nerdtree#exec('badd ' . quotedFileName, 0)
+    " 2. ensure that all windows which display the just deleted filename
+    " display a buffer for a new filename.
+    let s:originalTabNumber = tabpagenr()
+    let s:originalWindowNumber = winnr()
+    call nerdtree#exec('tabdo windo if winbufnr(0) ==# ' . a:bufNum . " | exec ':e! " . editStr . "' | endif", 0)
+    call nerdtree#exec('tabnext ' . s:originalTabNumber, 1)
+    call nerdtree#exec(s:originalWindowNumber . 'wincmd w', 1)
+    " 3. We don't need a previous buffer anymore
+    try
+        call nerdtree#exec('confirm bwipeout ' . a:bufNum, 0)
+    catch
+        " This happens when answering Cancel if confirmation is needed. Do nothing.
+    endtry
+endfunction
+"FUNCTION: NERDTreeAddNode(){{{1
+function! NERDTreeAddNode()
+    let curDirNode = g:NERDTreeDirNode.GetSelected()
+    let prompt = s:inputPrompt('add')
+    let newNodeName = substitute(input(prompt, curDirNode.path.str() . nerdtree#slash(), 'file'), '\(^\s*\|\s*$\)', '', 'g')
+    if newNodeName ==# ''
+        call nerdtree#echo('Node Creation Aborted.')
+        return
+    endif
+    try
+        let newPath = g:NERDTreePath.Create(newNodeName)
+        let parentNode = b:NERDTree.root.findNode(newPath.getParent())
+        let newTreeNode = g:NERDTreeFileNode.New(newPath, b:NERDTree)
+        " Emptying g:NERDTreeOldSortOrder forces the sort to
+        " recalculate the cached sortKey so nodes sort correctly.
+        let g:NERDTreeOldSortOrder = []
+        if empty(parentNode)
+            call b:NERDTree.root.refresh()
+            call b:NERDTree.render()
+        elseif parentNode.isOpen || !empty(parentNode.children)
+            call parentNode.addChild(newTreeNode, 1)
+            call NERDTreeRender()
+            call newTreeNode.putCursorHere(1, 0)
+        endif
+        redraw!
+    catch /^NERDTree/
+        call nerdtree#echoWarning('Node Not Created.')
+    endtry
+endfunction
+"FUNCTION: NERDTreeMoveNode(){{{1
+function! NERDTreeMoveNode()
+    let curNode = g:NERDTreeFileNode.GetSelected()
+    let prompt = s:inputPrompt('move')
+    let newNodePath = input(prompt, curNode.path.str(), 'file')
+    while filereadable(newNodePath)
+        call nerdtree#echoWarning('This destination already exists. Try again.')
+        let newNodePath = substitute(input(prompt, curNode.path.str(), 'file'), '\(^\s*\|\s*$\)', '', 'g')
+    endwhile
+    if newNodePath ==# ''
+        call nerdtree#echo('Node Renaming Aborted.')
+        return
+    endif
+    try
+        if curNode.path.isDirectory
+            let l:curPath = escape(curNode.path.str(),'\') . (nerdtree#runningWindows()?'\\':'/') . '.*'
+            let l:openBuffers = filter(range(1,bufnr('$')),'bufexists(v:val) && fnamemodify(bufname(v:val),":p") =~# "'.escape(l:curPath,'\').'"')
+        else
+            let l:openBuffers = filter(range(1,bufnr('$')),'bufexists(v:val) && fnamemodify(bufname(v:val),":p") ==# curNode.path.str()')
+        endif
+        call curNode.rename(newNodePath)
+        " Emptying g:NERDTreeOldSortOrder forces the sort to
+        " recalculate the cached sortKey so nodes sort correctly.
+        let g:NERDTreeOldSortOrder = []
+        call b:NERDTree.root.refresh()
+        call NERDTreeRender()
+        " If the file node is open, or files under the directory node are
+        " open, ask the user if they want to replace the file(s) with the
+        " renamed files.
+        if !empty(l:openBuffers)
+            if curNode.path.isDirectory
+                echo "\nDirectory renamed.\n\nFiles with the old directory name are open in buffers " . join(l:openBuffers, ', ') . '. Replace these buffers with the new files? (yN)'
+            else
+                echo "\nFile renamed.\n\nThe old file is open in buffer " . l:openBuffers[0] . '. Replace this buffer with the new file? (yN)'
+            endif
+            if g:NERDTreeAutoDeleteBuffer || nr2char(getchar()) ==# 'y'
+                for bufNum in l:openBuffers
+                    call s:renameBuffer(bufNum, newNodePath, curNode.path.isDirectory)
+                endfor
+            endif
+        endif
+        call curNode.putCursorHere(1, 0)
+        redraw!
+    catch /^NERDTree/
+        call nerdtree#echoWarning('Node Not Renamed.')
+    endtry
+endfunction
+" FUNCTION: NERDTreeDeleteNode() {{{1
+function! NERDTreeDeleteNode()
+    let currentNode = g:NERDTreeFileNode.GetSelected()
+    let confirmed = 0
+    if currentNode.path.isDirectory && ((currentNode.isOpen && currentNode.getChildCount() > 0) ||
+                                      \ (len(currentNode._glob('*', 1)) > 0))
+        let prompt = s:inputPrompt('deleteNonEmpty') . currentNode.path.str() . ': '
+        let choice = input(prompt)
+        let confirmed = choice ==# 'yes'
+    else
+        let prompt = s:inputPrompt('delete') . currentNode.path.str() . ' (yN): '
+        echo prompt
+        let choice = nr2char(getchar())
+        let confirmed = choice ==# 'y'
+    endif
+    if confirmed
+        try
+            call currentNode.delete()
+            call NERDTreeRender()
+            "if the node is open in a buffer, ask the user if they want to
+            "close that buffer
+            let bufnum = bufnr('^'.currentNode.path.str().'$')
+            if buflisted(bufnum)
+                let prompt = "\nNode deleted.\n\nThe file is open in buffer ". bufnum . (bufwinnr(bufnum) ==# -1 ? ' (hidden)' : '') .'. Delete this buffer? (yN)'
+                call s:promptToDelBuffer(bufnum, prompt)
+            endif
+            redraw!
+        catch /^NERDTree/
+            call nerdtree#echoWarning('Could not remove node')
+        endtry
+    else
+        call nerdtree#echo('delete aborted')
+    endif
+endfunction
+" FUNCTION: NERDTreeListNode() {{{1
+function! NERDTreeListNode()
+    let treenode = g:NERDTreeFileNode.GetSelected()
+    if !empty(treenode)
+        let s:uname = system('uname')
+        let stat_cmd = 'stat -c "%s" '
+        if s:uname =~? 'Darwin'
+            let stat_cmd = 'stat -f "%z" '
+        endif
+        let cmd = 'size=$(' . stat_cmd . shellescape(treenode.path.str()) . ') && ' .
+        \         'size_with_commas=$(echo $size | sed -e :a -e "s/\(.*[0-9]\)\([0-9]\{3\}\)/\1,\2/;ta") && ' .
+        \         'ls -ld ' . shellescape(treenode.path.str()) . ' | sed -e "s/ $size / $size_with_commas /"'
+        let metadata = split(system(cmd),'\n')
+        call nerdtree#echo(metadata[0])
+    else
+        call nerdtree#echo('No information available')
+    endif
+endfunction
+" FUNCTION: NERDTreeListNodeWin32() {{{1
+function! NERDTreeListNodeWin32()
+    let l:node = g:NERDTreeFileNode.GetSelected()
+    if !empty(l:node)
+        let l:path = l:node.path.str()
+        call nerdtree#echo(printf('%s:%s  MOD:%s  BYTES:%d  PERMISSIONS:%s',
+                    \ toupper(getftype(l:path)),
+                    \ fnamemodify(l:path, ':t'),
+                    \ strftime('%c', getftime(l:path)),
+                    \ getfsize(l:path),
+                    \ getfperm(l:path)))
+        return
+    endif
+    call nerdtree#echo('node not recognized')
+endfunction
+" FUNCTION: NERDTreeCopyNode() {{{1
+function! NERDTreeCopyNode()
+    let currentNode = g:NERDTreeFileNode.GetSelected()
+    let prompt = s:inputPrompt('copy')
+    let newNodePath = substitute(input(prompt, currentNode.path.str(), 'file'), '\(^\s*\|\s*$\)', '', 'g')
+    if newNodePath !=# ''
+        "strip trailing slash
+        let newNodePath = substitute(newNodePath, '\/$', '', '')
+        let confirmed = 1
+        if currentNode.path.copyingWillOverwrite(newNodePath)
+            call nerdtree#echo('Warning: copying may overwrite files! Continue? (yN)')
+            let choice = nr2char(getchar())
+            let confirmed = choice ==# 'y'
+        endif
+        if confirmed
+            try
+                let newNode = currentNode.copy(newNodePath)
+                " Emptying g:NERDTreeOldSortOrder forces the sort to
+                " recalculate the cached sortKey so nodes sort correctly.
+                let g:NERDTreeOldSortOrder = []
+                if empty(newNode)
+                    call b:NERDTree.root.refresh()
+                    call b:NERDTree.render()
+                else
+                    call NERDTreeRender()
+                    call newNode.putCursorHere(0, 0)
+                endif
+            catch /^NERDTree/
+                call nerdtree#echoWarning('Could not copy node')
+            endtry
+        endif
+    else
+        call nerdtree#echo('Copy aborted.')
+    endif
+    redraw!
+endfunction
+" FUNCTION: NERDTreeCopyPath() {{{1
+function! NERDTreeCopyPath()
+    let l:nodePath = g:NERDTreeFileNode.GetSelected().path.str()
+    if has('clipboard')
+        if &clipboard ==# 'unnamedplus'
+            let @+ = l:nodePath
+        else
+            let @* = l:nodePath
+        endif
+        call nerdtree#echo('The path [' . l:nodePath . '] was copied to your clipboard.')
+    else
+        call nerdtree#echo('The full path is: ' . l:nodePath)
+    endif
+endfunction
+" FUNCTION: NERDTreeQuickLook() {{{1
+function! NERDTreeQuickLook()
+    let l:node = g:NERDTreeFileNode.GetSelected()
+    if empty(l:node)
+        return
+    endif
+    call system('qlmanage -p 2>/dev/null ' . shellescape(l:node.path.str()))
+endfunction
+" FUNCTION: NERDTreeRevealInFinder() {{{1
+function! NERDTreeRevealInFinder()
+    let l:node = g:NERDTreeFileNode.GetSelected()
+    if empty(l:node)
+        return
+    endif
+    call system('open -R ' . shellescape(l:node.path.str()))
+endfunction
+" FUNCTION: NERDTreeExecuteFile() {{{1
+function! NERDTreeExecuteFile()
+    let l:node = g:NERDTreeFileNode.GetSelected()
+    if empty(l:node)
+        return
+    endif
+    call system('open ' . shellescape(l:node.path.str()))
+endfunction
+" FUNCTION: NERDTreeRevealFileLinux() {{{1
+function! NERDTreeRevealFileLinux()
+    let l:node = g:NERDTreeFileNode.GetSelected()
+    if empty(l:node)
+        return
+    endif
+    " Handle the edge case of "/", which has no parent.
+    if l:node.path.str() ==# '/'
+        call system('xdg-open /')
+        return
+    endif
+    if empty(l:node.parent)
+        return
+    endif
+    call system('xdg-open ' . shellescape(l:node.parent.path.str()))
+endfunction
+" FUNCTION: NERDTreeExecuteFileLinux() {{{1
+function! NERDTreeExecuteFileLinux()
+    let l:node = g:NERDTreeFileNode.GetSelected()
+    if empty(l:node)
+        return
+    endif
+    call system('xdg-open ' . shellescape(l:node.path.str()))
+endfunction
+" FUNCTION: NERDTreeExecuteFileWindows() {{{1
+function! NERDTreeExecuteFileWindows()
+    let l:node = g:NERDTreeFileNode.GetSelected()
+    if empty(l:node)
+        return
+    endif
+    call system('cmd.exe /c start "" ' . shellescape(l:node.path.str()))
+endfunction
+" FUNCTION: NERDTreeSystemCommand() {{{1
+function! NERDTreeSystemCommand()
+    let l:node = g:NERDTreeFileNode.GetSelected()
+    if empty(l:node)
+        return
+    endif
+    let l:cwd = getcwd()
+    let l:directory = l:node.path.isDirectory ? l:node.path.str() : l:node.parent.path.str()
+    execute 'cd '.l:directory
+    let l:nl = nr2char(10)
+    echo l:nl . system(input(l:directory . (nerdtree#runningWindows() ? '> ' : ' $ ')))
+    execute 'cd '.l:cwd
+endfunction
+" vim: set sw=4 sts=4 et fdm=marker:
diff --git a/.vim/pack/vendor/start/nerdtree/nerdtree_plugin/vcs.vim b/.vim/pack/vendor/start/nerdtree/nerdtree_plugin/vcs.vim
new file mode 100644
index 0000000..d20e35e
--- /dev/null
+++ b/.vim/pack/vendor/start/nerdtree/nerdtree_plugin/vcs.vim
@@ -0,0 +1,47 @@
+" ============================================================================
+" File:        vcs.vim
+" Description: NERDTree plugin that provides a command to open on the root of
+"              a version control system repository.
+" Maintainer:  Phil Runninger
+" License:     This program is free software. It comes without any warranty,
+"              to the extent permitted by applicable law. You can redistribute
+"              it and/or modify it under the terms of the Do What The Fuck You
+"              Want To Public License, Version 2, as published by Sam Hocevar.
+"              See http://sam.zoy.org/wtfpl/COPYING for more details.
+"
+" ============================================================================
+command! -n=? -complete=dir -bar NERDTreeVCS :call <SID>CreateTabTreeVCS('<args>')
+command! -n=? -complete=dir -bar NERDTreeToggleVCS :call <SID>ToggleTabTreeVCS('<args>')
+" FUNCTION: s:CreateTabTreeVCS(a:name) {{{1
+function! s:CreateTabTreeVCS(name)
+    let l:path = g:NERDTreeCreator._pathForString(a:name)
+    let l:path = s:FindParentVCSRoot(l:path)
+    call g:NERDTreeCreator.createTabTree(empty(l:path) ? '' : l:path._str())
+endfunction
+" FUNCTION: s:ToggleTabTreeVCS(a:name) {{{1
+" Behaves the same as ToggleTabTree except roots directory at VCS root
+function! s:ToggleTabTreeVCS(name)
+    let l:path = g:NERDTreeCreator._pathForString(a:name)
+    let l:path = s:FindParentVCSRoot(l:path)
+    call g:NERDTreeCreator.toggleTabTree(empty(l:path) ? '' : l:path._str())
+endfunction
+" FUNCTION: s:FindParentVCSRoot(a:path) {{{1
+" Finds the root version control system folder of the given path. If a:path is
+" not part of a repository, return the original path.
+function! s:FindParentVCSRoot(path)
+    let l:path = a:path
+    while !empty(l:path) &&
+        \ l:path._str() !~# '^\(\a:[\\\/]\|\/\)$' &&
+        \ !isdirectory(l:path._str() . '/.git') &&
+        \ !isdirectory(l:path._str() . '/.svn') &&
+        \ !isdirectory(l:path._str() . '/.hg') &&
+        \ !isdirectory(l:path._str() . '/.bzr') &&
+        \ !isdirectory(l:path._str() . '/_darcs')
+        let l:path = l:path.getParent()
+    endwhile
+    return (empty(l:path) || l:path._str() =~# '^\(\a:[\\\/]\|\/\)$') ? a:path : l:path
+endfunction