Add custom plugin better_autoread

Make a plugin out of a Stack Overflow post for a better autoread
augroup.

The `autoread` setting in vim will automatically reload a file if it's
been changed outside of vim (if you've made unsaved changes vim will
prompt before loading the file). By default, however, vim doesn't
automatically detect when a file has changed. It only happens when you
do certain things. This sets up an autocmd to force a check a bit more
often by tying into the CursorHold events. A bit hackish it seems but it
works like a charm.

This has been sorely needed especially since yesterday when I was
switching git branches in a project several times and editing various
files only to be alerted upon saving that the file on disk has changed.
Previously I would say it was a minor annoyance to have to type :e! in
those situations. Yesterday it was a freaking pain in the glaiven since
it happened unexpectedly so many times and after I was ready to
commit/save edits.

1 files changed, 22 insertions, 0 deletions

diff --git a/plugin/better_autoread.vim b/plugin/better_autoread.vim
new file mode 100644
index 0000000..e8625a1
--- /dev/null
+++ b/plugin/better_autoread.vim
@@ -0,0 +1,22 @@
+" Better autoread
+" Better detection for when files have changed outside of vim. Will 
+" automatically reload files if they changed. If you've made modifications to 
+" the file, you'll be prompted before the file is loaded.
+"
+" Taken from Greg Sexton:
+" http://stackoverflow.com/a/10962191
+
+set autoread
+augroup checktime
+	autocmd!
+	if !has("gui_running")
+		"silent! necessary otherwise throws errors when using command
+		"line window.
+		autocmd BufEnter        * silent! checktime
+		autocmd CursorHold      * silent! checktime
+		autocmd CursorHoldI     * silent! checktime
+		"these two _may_ slow things down. Remove if they do.
+		" autocmd CursorMoved     * silent! checktime
+		" autocmd CursorMovedI    * silent! checktime
+	endif
+augroup END