Use proper true or false value for boolean variables

In lua, 0 and empty string is true, which is counter-intuitive and
different from vim script. So we need to use proper boolean type for vim
script global variables, instead of numbers.

1 files changed, 12 insertions, 0 deletions

diff --git a/lua/utils.lua b/lua/utils.lua
index dedc4af..a4c02f2 100644
--- a/lua/utils.lua
+++ b/lua/utils.lua
@@ -3,3 +3,15 @@
 function inspect(item)
   print(vim.inspect(item))
 end
+
+local M = {}
+
+function M.executable(name)
+  if vim.fn.executable(name) > 0 then
+    return true
+  end
+
+  return false
+end
+
+return M