Add 'sessionoptions' settings

This disables saving global and local options and mappings in the
sessions. This is more trouble than it's worth for me, because sessions
don't include buffer-local variables, which means that in addition to
restoring the state of options and mappings, plugins and filetype
plugins are reloaded in the absence of b:loaded_* guards.

1 files changed, 6 insertions, 0 deletions

diff --git a/vim/vimrc b/vim/vimrc
index 73b71646..d1b47b0b 100644
--- a/vim/vimrc
+++ b/vim/vimrc
@@ -141,6 +141,12 @@ if has('linebreak')
   endif
 endif
 
+" Don't store any options or mappings in sessions
+if has('mksession')
+  set sessionoptions-=localoptions
+  set sessionoptions-=options
+endif
+
 " Let me move beyond buffer text in visual block mode
 if has('virtualedit')
   set virtualedit+=block