From a03bee658f3c45590c0b3108c9e4579dc1bba922 Mon Sep 17 00:00:00 2001
From: Marco Hinz <mh.codebro@gmail.com>
Date: Fri, 24 Oct 2014 11:39:05 +0200
Subject: [PATCH] Add support for lazy loading

---
 autoload/sy.vim           | 6 ++----
 autoload/sy/highlight.vim | 8 +++-----
 plugin/signify.vim        | 6 ++----
 3 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/autoload/sy.vim b/autoload/sy.vim
index ee3ee75..5b20c0b 100644
--- a/autoload/sy.vim
+++ b/autoload/sy.vim
@@ -12,9 +12,7 @@ function! sy#start() abort
     return
   endif
 
-  if !exists('b:sy_path')
-    let b:sy_path = resolve(expand('%:p'))
-  endif
+  let b:sy_path = resolve(expand('%:p'))
 
   if &diff
         \ || !filereadable(b:sy_path)
@@ -105,7 +103,7 @@ endfunction
 " Function: #toggle {{{1
 function! sy#toggle() abort
   if !exists('b:sy')
-    echomsg 'signify: I cannot sy empty buffers!'
+    call sy#start()
     return
   endif
 
diff --git a/autoload/sy/highlight.vim b/autoload/sy/highlight.vim
index 256553f..5f6cbb5 100644
--- a/autoload/sy/highlight.vim
+++ b/autoload/sy/highlight.vim
@@ -70,11 +70,6 @@ endfunction
 
 " Function: #line_toggle {{{1
 function! sy#highlight#line_toggle() abort
-  if !exists('b:sy')
-    echomsg 'signify: I cannot detect any changes!'
-    return
-  endif
-
   if get(g:, 'signify_line_highlight')
     call sy#highlight#line_disable()
   else
@@ -83,3 +78,6 @@ function! sy#highlight#line_toggle() abort
 
   call sy#start()
 endfunction
+" }}}
+
+call sy#highlight#setup()
diff --git a/plugin/signify.vim b/plugin/signify.vim
index 432abdf..a8d8bec 100644
--- a/plugin/signify.vim
+++ b/plugin/signify.vim
@@ -14,10 +14,8 @@ let g:signify_locked = 0
 augroup signify
   autocmd!
 
-  autocmd VimEnter                         * call sy#highlight#setup()
-  autocmd BufRead,BufEnter,SessionLoadPost * let b:sy_path = resolve(expand('<afile>:p'))
-  autocmd BufRead,BufWritePost             * call sy#start()
-  autocmd BufDelete                        * call sy#stop()
+  autocmd BufRead,BufWritePost * call sy#start()
+  autocmd BufDelete            * call sy#stop()
 
   autocmd QuickFixCmdPre  *vimgrep* let g:signify_locked = 1
   autocmd QuickFixCmdPost *vimgrep* let g:signify_locked = 0