1 files changed, 360 insertions, 0 deletions
diff --git a/.config/nvim/plugged/nerdtree-git-plugin/nerdtree_plugin/git_status.vim b/.config/nvim/plugged/nerdtree-git-plugin/nerdtree_plugin/git_status.vim
new file mode 100644
index 0000000..af7eb55
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+++ b/.config/nvim/plugged/nerdtree-git-plugin/nerdtree_plugin/git_status.vim
@@ -0,0 +1,360 @@
+" ============================================================================
+" File:        git_status.vim
+" Description: plugin for NERD Tree that provides git status support
+" Maintainer:  Xuyuan Pang <xuyuanp at gmail dot com>
+" Last Change: 4 Apr 2014
+" 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_git_status')
+    finish
+endif
+let g:loaded_nerdtree_git_status = 1
+
+if !exists('g:NERDTreeShowGitStatus')
+    let g:NERDTreeShowGitStatus = 1
+endif
+
+if g:NERDTreeShowGitStatus == 0
+    finish
+endif
+
+if !exists('g:NERDTreeMapNextHunk')
+    let g:NERDTreeMapNextHunk = ']c'
+endif
+
+if !exists('g:NERDTreeMapPrevHunk')
+    let g:NERDTreeMapPrevHunk = '[c'
+endif
+
+if !exists('g:NERDTreeUpdateOnWrite')
+    let g:NERDTreeUpdateOnWrite = 1
+endif
+
+if !exists('g:NERDTreeUpdateOnCursorHold')
+    let g:NERDTreeUpdateOnCursorHold = 1
+endif
+
+if !exists('g:NERDTreeShowIgnoredStatus')
+    let g:NERDTreeShowIgnoredStatus = 0
+endif
+
+if !exists('s:NERDTreeIndicatorMap')
+    let s:NERDTreeIndicatorMap = {
+                \ 'Modified'  : '✹',
+                \ 'Staged'    : '✚',
+                \ 'Untracked' : '✭',
+                \ 'Renamed'   : '➜',
+                \ 'Unmerged'  : '═',
+                \ 'Deleted'   : '✖',
+                \ 'Dirty'     : '✗',
+                \ 'Clean'     : '✔︎',
+                \ 'Ignored'   : '☒',
+                \ 'Unknown'   : '?'
+                \ }
+endif
+
+
+function! NERDTreeGitStatusRefreshListener(event)
+    if !exists('b:NOT_A_GIT_REPOSITORY')
+        call g:NERDTreeGitStatusRefresh()
+    endif
+    let l:path = a:event.subject
+    let l:flag = g:NERDTreeGetGitStatusPrefix(l:path)
+    call l:path.flagSet.clearFlags('git')
+    if l:flag !=# ''
+        call l:path.flagSet.addFlag('git', l:flag)
+    endif
+endfunction
+
+" FUNCTION: g:NERDTreeGitStatusRefresh() {{{2
+" refresh cached git status
+function! g:NERDTreeGitStatusRefresh()
+    let b:NERDTreeCachedGitFileStatus = {}
+    let b:NERDTreeCachedGitDirtyDir   = {}
+    let b:NOT_A_GIT_REPOSITORY        = 1
+
+    let l:root = fnamemodify(b:NERDTree.root.path.str(), ':p:gs?\\?/?:S')
+    let l:gitcmd = 'git -c color.status=false -C ' . l:root . ' status -s'
+    if g:NERDTreeShowIgnoredStatus
+        let l:gitcmd = l:gitcmd . ' --ignored'
+    endif
+    if exists('g:NERDTreeGitStatusIgnoreSubmodules')
+        let l:gitcmd = l:gitcmd . ' --ignore-submodules'
+        if g:NERDTreeGitStatusIgnoreSubmodules ==# 'all' || g:NERDTreeGitStatusIgnoreSubmodules ==# 'dirty' || g:NERDTreeGitStatusIgnoreSubmodules ==# 'untracked'
+            let l:gitcmd = l:gitcmd . '=' . g:NERDTreeGitStatusIgnoreSubmodules
+        endif
+    endif
+    let l:statusesStr = system(l:gitcmd)
+    let l:statusesSplit = split(l:statusesStr, '\n')
+    if l:statusesSplit != [] && l:statusesSplit[0] =~# 'fatal:.*'
+        let l:statusesSplit = []
+        return
+    endif
+    let b:NOT_A_GIT_REPOSITORY = 0
+
+    for l:statusLine in l:statusesSplit
+        " cache git status of files
+        let l:pathStr = substitute(l:statusLine, '...', '', '')
+        let l:pathSplit = split(l:pathStr, ' -> ')
+        if len(l:pathSplit) == 2
+            call s:NERDTreeCacheDirtyDir(l:pathSplit[0])
+            let l:pathStr = l:pathSplit[1]
+        else
+            let l:pathStr = l:pathSplit[0]
+        endif
+        let l:pathStr = s:NERDTreeTrimDoubleQuotes(l:pathStr)
+        if l:pathStr =~# '\.\./.*'
+            continue
+        endif
+        let l:statusKey = s:NERDTreeGetFileGitStatusKey(l:statusLine[0], l:statusLine[1])
+        let b:NERDTreeCachedGitFileStatus[fnameescape(l:pathStr)] = l:statusKey
+
+        if l:statusKey == 'Ignored'
+            if isdirectory(l:pathStr)
+                let b:NERDTreeCachedGitDirtyDir[fnameescape(l:pathStr)] = l:statusKey
+            endif
+        else
+            call s:NERDTreeCacheDirtyDir(l:pathStr)
+        endif
+    endfor
+endfunction
+
+function! s:NERDTreeCacheDirtyDir(pathStr)
+    " cache dirty dir
+    let l:dirtyPath = s:NERDTreeTrimDoubleQuotes(a:pathStr)
+    if l:dirtyPath =~# '\.\./.*'
+        return
+    endif
+    let l:dirtyPath = substitute(l:dirtyPath, '/[^/]*$', '/', '')
+    while l:dirtyPath =~# '.\+/.*' && has_key(b:NERDTreeCachedGitDirtyDir, fnameescape(l:dirtyPath)) == 0
+        let b:NERDTreeCachedGitDirtyDir[fnameescape(l:dirtyPath)] = 'Dirty'
+        let l:dirtyPath = substitute(l:dirtyPath, '/[^/]*/$', '/', '')
+    endwhile
+endfunction
+
+function! s:NERDTreeTrimDoubleQuotes(pathStr)
+    let l:toReturn = substitute(a:pathStr, '^"', '', '')
+    let l:toReturn = substitute(l:toReturn, '"$', '', '')
+    return l:toReturn
+endfunction
+
+" FUNCTION: g:NERDTreeGetGitStatusPrefix(path) {{{2
+" return the indicator of the path
+" Args: path
+let s:GitStatusCacheTimeExpiry = 2
+let s:GitStatusCacheTime = 0
+function! g:NERDTreeGetGitStatusPrefix(path)
+    if localtime() - s:GitStatusCacheTime > s:GitStatusCacheTimeExpiry
+        let s:GitStatusCacheTime = localtime()
+        call g:NERDTreeGitStatusRefresh()
+    endif
+    let l:pathStr = a:path.str()
+    let l:cwd = b:NERDTree.root.path.str() . a:path.Slash()
+    if nerdtree#runningWindows()
+        let l:pathStr = a:path.WinToUnixPath(l:pathStr)
+        let l:cwd = a:path.WinToUnixPath(l:cwd)
+    endif
+    let l:cwd = substitute(l:cwd, '\~', '\\~', 'g')
+    let l:pathStr = substitute(l:pathStr, l:cwd, '', '')
+    let l:statusKey = ''
+    if a:path.isDirectory
+        let l:statusKey = get(b:NERDTreeCachedGitDirtyDir, fnameescape(l:pathStr . '/'), '')
+    else
+        let l:statusKey = get(b:NERDTreeCachedGitFileStatus, fnameescape(l:pathStr), '')
+    endif
+    return s:NERDTreeGetIndicator(l:statusKey)
+endfunction
+
+" FUNCTION: s:NERDTreeGetCWDGitStatus() {{{2
+" return the indicator of cwd
+function! g:NERDTreeGetCWDGitStatus()
+    if b:NOT_A_GIT_REPOSITORY
+        return ''
+    elseif b:NERDTreeCachedGitDirtyDir == {} && b:NERDTreeCachedGitFileStatus == {}
+        return s:NERDTreeGetIndicator('Clean')
+    endif
+    return s:NERDTreeGetIndicator('Dirty')
+endfunction
+
+function! s:NERDTreeGetIndicator(statusKey)
+    if exists('g:NERDTreeIndicatorMapCustom')
+        let l:indicator = get(g:NERDTreeIndicatorMapCustom, a:statusKey, '')
+        if l:indicator !=# ''
+            return l:indicator
+        endif
+    endif
+    let l:indicator = get(s:NERDTreeIndicatorMap, a:statusKey, '')
+    if l:indicator !=# ''
+        return l:indicator
+    endif
+    return ''
+endfunction
+
+function! s:NERDTreeGetFileGitStatusKey(us, them)
+    if a:us ==# '?' && a:them ==# '?'
+        return 'Untracked'
+    elseif a:us ==# ' ' && a:them ==# 'M'
+        return 'Modified'
+    elseif a:us =~# '[MAC]'
+        return 'Staged'
+    elseif a:us ==# 'R'
+        return 'Renamed'
+    elseif a:us ==# 'U' || a:them ==# 'U' || a:us ==# 'A' && a:them ==# 'A' || a:us ==# 'D' && a:them ==# 'D'
+        return 'Unmerged'
+    elseif a:them ==# 'D'
+        return 'Deleted'
+    elseif a:us ==# '!'
+        return 'Ignored'
+    else
+        return 'Unknown'
+    endif
+endfunction
+
+" FUNCTION: s:jumpToNextHunk(node) {{{2
+function! s:jumpToNextHunk(node)
+    let l:position = search('\[[^{RO}].*\]', '')
+    if l:position
+        call nerdtree#echo('Jump to next hunk ')
+    endif
+endfunction
+
+" FUNCTION: s:jumpToPrevHunk(node) {{{2
+function! s:jumpToPrevHunk(node)
+    let l:position = search('\[[^{RO}].*\]', 'b')
+    if l:position
+        call nerdtree#echo('Jump to prev hunk ')
+    endif
+endfunction
+
+" Function: s:SID()   {{{2
+function s:SID()
+    if !exists('s:sid')
+        let s:sid = matchstr(expand('<sfile>'), '<SNR>\zs\d\+\ze_SID$')
+    endif
+    return s:sid
+endfun
+
+" FUNCTION: s:NERDTreeGitStatusKeyMapping {{{2
+function! s:NERDTreeGitStatusKeyMapping()
+    let l:s = '<SNR>' . s:SID() . '_'
+
+    call NERDTreeAddKeyMap({
+        \ 'key': g:NERDTreeMapNextHunk,
+        \ 'scope': 'Node',
+        \ 'callback': l:s.'jumpToNextHunk',
+        \ 'quickhelpText': 'Jump to next git hunk' })
+
+    call NERDTreeAddKeyMap({
+        \ 'key': g:NERDTreeMapPrevHunk,
+        \ 'scope': 'Node',
+        \ 'callback': l:s.'jumpToPrevHunk',
+        \ 'quickhelpText': 'Jump to prev git hunk' })
+
+endfunction
+
+augroup nerdtreegitplugin
+    autocmd CursorHold * silent! call s:CursorHoldUpdate()
+augroup END
+" FUNCTION: s:CursorHoldUpdate() {{{2
+function! s:CursorHoldUpdate()
+    if g:NERDTreeUpdateOnCursorHold != 1
+        return
+    endif
+
+    if !g:NERDTree.IsOpen()
+        return
+    endif
+
+    " Do not update when a special buffer is selected
+    if !empty(&l:buftype)
+        return
+    endif
+
+    let l:winnr = winnr()
+    let l:altwinnr = winnr('#')
+
+    call g:NERDTree.CursorToTreeWin()
+    call b:NERDTree.root.refreshFlags()
+    call NERDTreeRender()
+
+    exec l:altwinnr . 'wincmd w'
+    exec l:winnr . 'wincmd w'
+endfunction
+
+augroup nerdtreegitplugin
+    autocmd BufWritePost * call s:FileUpdate(expand('%:p'))
+augroup END
+" FUNCTION: s:FileUpdate(fname) {{{2
+function! s:FileUpdate(fname)
+    if g:NERDTreeUpdateOnWrite != 1
+        return
+    endif
+
+    if !g:NERDTree.IsOpen()
+        return
+    endif
+
+    let l:winnr = winnr()
+    let l:altwinnr = winnr('#')
+
+    call g:NERDTree.CursorToTreeWin()
+    let l:node = b:NERDTree.root.findNode(g:NERDTreePath.New(a:fname))
+    if l:node == {}
+        return
+    endif
+    call l:node.refreshFlags()
+    let l:node = l:node.parent
+    while !empty(l:node)
+        call l:node.refreshDirFlags()
+        let l:node = l:node.parent
+    endwhile
+
+    call NERDTreeRender()
+
+    exec l:altwinnr . 'wincmd w'
+    exec l:winnr . 'wincmd w'
+endfunction
+
+augroup AddHighlighting
+    autocmd FileType nerdtree call s:AddHighlighting()
+augroup END
+function! s:AddHighlighting()
+    let l:synmap = {
+                \ 'NERDTreeGitStatusModified'    : s:NERDTreeGetIndicator('Modified'),
+                \ 'NERDTreeGitStatusStaged'      : s:NERDTreeGetIndicator('Staged'),
+                \ 'NERDTreeGitStatusUntracked'   : s:NERDTreeGetIndicator('Untracked'),
+                \ 'NERDTreeGitStatusRenamed'     : s:NERDTreeGetIndicator('Renamed'),
+                \ 'NERDTreeGitStatusIgnored'     : s:NERDTreeGetIndicator('Ignored'),
+                \ 'NERDTreeGitStatusDirDirty'    : s:NERDTreeGetIndicator('Dirty'),
+                \ 'NERDTreeGitStatusDirClean'    : s:NERDTreeGetIndicator('Clean')
+                \ }
+
+    for l:name in keys(l:synmap)
+        exec 'syn match ' . l:name . ' #' . escape(l:synmap[l:name], '~') . '# containedin=NERDTreeFlags'
+    endfor
+
+    hi def link NERDTreeGitStatusModified Special
+    hi def link NERDTreeGitStatusStaged Function
+    hi def link NERDTreeGitStatusRenamed Title
+    hi def link NERDTreeGitStatusUnmerged Label
+    hi def link NERDTreeGitStatusUntracked Comment
+    hi def link NERDTreeGitStatusDirDirty Tag
+    hi def link NERDTreeGitStatusDirClean DiffAdd
+    " TODO: use diff color
+    hi def link NERDTreeGitStatusIgnored DiffAdd
+endfunction
+
+function! s:SetupListeners()
+    call g:NERDTreePathNotifier.AddListener('init', 'NERDTreeGitStatusRefreshListener')
+    call g:NERDTreePathNotifier.AddListener('refresh', 'NERDTreeGitStatusRefreshListener')
+    call g:NERDTreePathNotifier.AddListener('refreshFlags', 'NERDTreeGitStatusRefreshListener')
+endfunction
+
+if g:NERDTreeShowGitStatus && executable('git')
+    call s:NERDTreeGitStatusKeyMapping()
+    call s:SetupListeners()
+endif