From dbfbe1bc6dcf6f18425a66c9c034d764030c1c8b Mon Sep 17 00:00:00 2001
From: Greg Hurrell <greg@hurrell.net>
Date: Sun, 8 Jan 2017 22:35:53 +1030
Subject: [PATCH] Replace a hard-coded list with a `keys()` call

---
 plugin/ferret.vim | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/plugin/ferret.vim b/plugin/ferret.vim
index f6cb192..d2e2a5a 100644
--- a/plugin/ferret.vim
+++ b/plugin/ferret.vim
@@ -467,8 +467,9 @@ let s:executables={
 " Would ideally have these in an autoload file, but want to defer autoload
 " until as late as possible.
 function! FerretExecutable()
+  let l:valid=keys(s:executables)
   let l:executables=split(s:force, '\v\s*,\s*')
-  let l:executables=filter(l:executables, 'index(["rg", "ag", "ack"], v:val) != -1')
+  let l:executables=filter(l:executables, 'index(l:valid, v:val) != -1')
   if index(l:executables, 'rg') == -1
     call add(l:executables, 'rg')
   endif