Add commands to enable/disable/toggle GitGutter per buffer.

README.mkd

@@ -17,7 +17,7 @@ Features:
 * Handles line endings correctly, even with repos that do CRLF conversion.
 * Optional line highlighting.
 * Fully customisable (signs, sign column, line highlights, mappings, extra git-diff arguments, etc).
-* Can be toggled on/off.
+* Can be toggled on/off, globally or per buffer.
 * Preserves signs from other plugins.
 * Easy to integrate diff stats into status line; built-in integration with [vim-airline](https://github.com/bling/vim-airline/).
 * Works with fish shell (in addition to the usual shells).
@@ -119,6 +119,12 @@ You can explicitly turn vim-gitgutter off and on (defaults to on):
 * turn on with `:GitGutterEnable`
 * toggle with `:GitGutterToggle`.
 
+To toggle vim-gitgutter per buffer:
+
+* turn off with `:GitGutterBufferDisable`
+* turn on with `:GitGutterBufferEnable`
+* toggle with `:GitGutterBufferToggle`
+
 You can turn the signs on and off (defaults to on):
 
 * turn on with `:GitGutterSignsEnable`

autoload/gitgutter.vim

@@ -85,6 +85,27 @@ function! gitgutter#toggle() abort
   endif
 endfunction
 
+
+function! gitgutter#buffer_disable() abort
+  let bufnr = bufnr('')
+  call gitgutter#utility#setbufvar(bufnr, 'enabled', 0)
+  call s:clear(bufnr)
+endfunction
+
+function! gitgutter#buffer_enable() abort
+  let bufnr = 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()
+  else
+    call gitgutter#buffer_enable()
+  endif
+endfunction
+
 " }}}
 
 function! s:setup_maps()

autoload/gitgutter/utility.vim

@@ -53,6 +53,7 @@ endfunction
 " This function does not and should not make any system calls.
 function! gitgutter#utility#is_active(bufnr) abort
   return g:gitgutter_enabled &&
+        \ gitgutter#utility#getbufvar(a:bufnr, 'enabled', 1) &&
         \ !pumvisible() &&
         \ s:is_file_buffer(a:bufnr) &&
         \ s:exists_file(a:bufnr) &&

plugin/gitgutter.vim

@@ -97,6 +97,10 @@ command! -bar GitGutterDisable call gitgutter#disable()
 command! -bar GitGutterEnable  call gitgutter#enable()
 command! -bar GitGutterToggle  call gitgutter#toggle()
 
+command! -bar GitGutterBufferDisable call gitgutter#buffer_disable()
+command! -bar GitGutterBufferEnable  call gitgutter#buffer_enable()
+command! -bar GitGutterBufferToggle  call gitgutter#buffer_toggle()
+
 " }}}
 
 " Line highlights {{{