Update vim-gitgutter.

sources_non_forked/vim-gitgutter/autoload/gitgutter.vim

@@ -21,6 +21,10 @@ endfunction
 function! gitgutter#process_buffer(bufnr, force) abort
   " NOTE a:bufnr is not necessarily the current buffer.
 
+  if gitgutter#utility#getbufvar(a:bufnr, 'enabled', -1) == -1
+    call gitgutter#utility#setbufvar(a:bufnr, 'enabled', g:gitgutter_enabled)
+  endif
+
   if gitgutter#utility#is_active(a:bufnr)
 
     if has('patch-7.4.1559')
@@ -40,6 +44,8 @@ function! gitgutter#process_buffer(bufnr, force) abort
         let diff = gitgutter#diff#run_diff(a:bufnr, g:gitgutter_diff_relative_to, 0)
       catch /gitgutter not tracked/
         call gitgutter#debug#log('Not tracked: '.gitgutter#utility#file(a:bufnr))
+      catch /gitgutter assume unchanged/
+        call gitgutter#debug#log('Assume unchanged: '.gitgutter#utility#file(a:bufnr))
       catch /gitgutter diff failed/
         call gitgutter#debug#log('Diff failed: '.gitgutter#utility#file(a:bufnr))
         call gitgutter#hunk#reset(a:bufnr)
@@ -55,22 +61,28 @@ endfunction
 
 
 function! gitgutter#disable() abort
-  " get list of all buffers (across all tabs)
-  for bufnr in range(1, bufnr('$') + 1)
-    if buflisted(bufnr)
-      let file = expand('#'.bufnr.':p')
-      if !empty(file)
-        call s:clear(bufnr)
-      endif
-    endif
-  endfor
-
+  call s:toggle_each_buffer(0)
   let g:gitgutter_enabled = 0
 endfunction
 
 function! gitgutter#enable() abort
+  call s:toggle_each_buffer(1)
   let g:gitgutter_enabled = 1
-  call gitgutter#all(1)
+endfunction
+
+function s:toggle_each_buffer(enable)
+  for bufnr in range(1, bufnr('$') + 1)
+    if buflisted(bufnr)
+      let file = expand('#'.bufnr.':p')
+      if !empty(file)
+        if a:enable
+          call gitgutter#buffer_enable(bufnr)
+        else
+          call gitgutter#buffer_disable(bufnr)
+        end
+      endif
+    endif
+  endfor
 endfunction
 
 function! gitgutter#toggle() abort
@@ -82,23 +94,24 @@ function! gitgutter#toggle() abort
 endfunction
 
 
-function! gitgutter#buffer_disable() abort
-  let bufnr = bufnr('')
+function! gitgutter#buffer_disable(...) abort
+  let bufnr = a:0 ? a:1 : bufnr('')
   call gitgutter#utility#setbufvar(bufnr, 'enabled', 0)
   call s:clear(bufnr)
 endfunction
 
-function! gitgutter#buffer_enable() abort
-  let bufnr = bufnr('')
+function! gitgutter#buffer_enable(...) abort
+  let bufnr = a:0 ? a:1 : bufnr('')
   call gitgutter#utility#setbufvar(bufnr, 'enabled', 1)
   call gitgutter#process_buffer(bufnr, 1)
 endfunction
 
-function! gitgutter#buffer_toggle() abort
-  if gitgutter#utility#getbufvar(bufnr(''), 'enabled', 1)
-    call gitgutter#buffer_disable()
+function! gitgutter#buffer_toggle(...) abort
+  let bufnr = a:0 ? a:1 : bufnr('')
+  if gitgutter#utility#getbufvar(bufnr, 'enabled', 1)
+    call gitgutter#buffer_disable(bufnr)
   else
-    call gitgutter#buffer_enable()
+    call gitgutter#buffer_enable(bufnr)
   endif
 endfunction
 
@@ -222,3 +235,31 @@ function! gitgutter#quickfix(current_file)
     call setloclist(0, locations)
   endif
 endfunction
+
+
+function! gitgutter#difforig()
+  let bufnr = bufnr('')
+  let path = gitgutter#utility#repo_path(bufnr, 1)
+  let filetype = &filetype
+
+  vertical new
+  set buftype=nofile
+  let &filetype = filetype
+
+  if g:gitgutter_diff_relative_to ==# 'index'
+    let index_name = gitgutter#utility#get_diff_base(bufnr).':'.path
+    let cmd = gitgutter#utility#cd_cmd(bufnr,
+          \ g:gitgutter_git_executable.' '.g:gitgutter_git_args.' --no-pager show '.index_name
+          \ )
+    " NOTE: this uses &shell to execute cmd.  Perhaps we should use instead
+    " gitgutter#utility's use_known_shell() / restore_shell() functions.
+    silent! execute "read ++edit !" cmd
+  else
+    silent! execute "read ++edit" path
+  endif
+
+  0d_
+  diffthis
+  wincmd p
+  diffthis
+endfunction