From 03810e90969e601d4546933e28aef1086bd7ae14 Mon Sep 17 00:00:00 2001
From: Marco Hinz <mh.codebro@gmail.com>
Date: Tue, 24 Sep 2013 17:29:23 +0200
Subject: [PATCH] New options: g:startify_session_save{vars,cmds}

---
 autoload/startify.vim | 27 ++++++++++++++++++++++++---
 doc/startify.txt      | 31 +++++++++++++++++++++++++++++++
 2 files changed, 55 insertions(+), 3 deletions(-)

diff --git a/autoload/startify.vim b/autoload/startify.vim
index a9b049e..9d4f968 100644
--- a/autoload/startify.vim
+++ b/autoload/startify.vim
@@ -20,7 +20,7 @@ let s:session_dir      = resolve(expand(get(g:, 'startify_session_dir',
 if get(g:, 'startify_session_persistence')
   autocmd startify VimLeave *
         \ if exists('v:this_session') && filewritable(v:this_session) |
-        \   execute 'mksession!' fnameescape(v:this_session) |
+        \   call s:session_write(fnameescape(v:this_session)) |
         \ endif
 endif
 
@@ -165,13 +165,15 @@ function! startify#session_save(...) abort
 
   let spath = s:session_dir . s:sep . sname
   if !filereadable(spath)
-    execute 'mksession '. fnameescape(spath) | echo 'Session saved under: '. spath
+    call s:session_write(fnameescape(spath))
+    echo 'Session saved under: '. spath
     return
   endif
 
   echo 'Session already exists. Overwrite?  [y/n]' | redraw
   if nr2char(getchar()) == 'y'
-    execute 'mksession! '. fnameescape(spath) | echo 'Session saved under: '. spath
+    call s:session_write(fnameescape(spath))
+    echo 'Session saved under: '. spath
   else
     echo 'Did NOT save the session!'
   endif
@@ -514,4 +516,23 @@ function! s:restore_position() abort
   endif
 endfunction
 
+" Function: s:session_write {{{1
+function! s:session_write(spath)
+  execute 'mksession!' a:spath
+
+  if exists('g:startify_session_savevars') || exists('g:startify_session_savecmds')
+    execute 'split' a:spath
+
+    " put existing variables from savevars into session file
+    call append(line('$')-3, map(filter(get(g:, 'startify_session_savevars', []), 'exists(v:val)'), '"let ". v:val ." = ". strtrans(string(eval(v:val)))'))
+
+    " put commands from savecmds into session file
+    call append(line('$')-3, get(g:, 'startify_session_savecmds', []))
+
+    setlocal bufhidden=delete
+    silent update
+    silent hide
+  endif
+endfunction
+
 " vim: et sw=2 sts=2
diff --git a/doc/startify.txt b/doc/startify.txt
index 1d2cfa9..2056b39 100644
--- a/doc/startify.txt
+++ b/doc/startify.txt
@@ -93,6 +93,8 @@ default values.
     |g:startify_restore_position|
     |g:startify_empty_buffer_key|
     |g:startify_enable_special|
+    |g:startify_session_savevars|
+    |g:startify_session_savecmds|
 
 
 ============-                                           *g:startify_session_dir*
@@ -235,6 +237,35 @@ Default: does not exist
 
 Show <empty buffer> and <quit>.
 
+============-                                      *g:startify_session_savevars*
+
+    let g:startify_session_savevars = []
+
+Include a list of variables in here which you would like Startify to save into
+the session file in addition to what Vim normally saves into the session file.
+For example, Vim will not normally save all-lowercase global variables, which
+are common for plugin settings.  It may be advisable to include
+|g:startify_session_savevars| and |g:startify_session_savecmds| into this list
+so they are saved every time the session saves.
+
+Example: let g:startify_session_savevars = [
+           \ 'g:startify_session_savevars',
+           \ 'g:startify_session_savecmds',
+           \ 'g:random_plugin_use_feature'
+           \ ]
+
+============-                                      *g:startify_session_savecmds*
+
+    let g:startify_session_savecmds = []
+
+Include a list of cmdline commands which Vim will run upon loading the
+session.  This can be useful to set various things (other than variables,
+|g:startify_session_savevars| above) which Vim may not normally save into the
+session file, as well as run external commands upon loading a session.
+
+Example: let g:startify_session_savecmds = [
+           \ 'silent !pdfreader ~/latexproject/main.pdf &'
+           \ ]
 
 ============-                                      *g:startify_restore_position*