From 8403e58857b27b8d63750ebe784b2e1be97252bb Mon Sep 17 00:00:00 2001
From: Jeremy Penner <jeremy@sporktania.com>
Date: Sun, 25 Apr 2021 14:52:45 -0400
Subject: [PATCH] fix crash on startup when luars232 doesn't load

---
 link/serial.fnl | 2 +-
 main.lua        | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/link/serial.fnl b/link/serial.fnl
index c06a7c7..069973a 100644
--- a/link/serial.fnl
+++ b/link/serial.fnl
@@ -1,5 +1,5 @@
 ; using https://github.com/srdgame/librs232
-(local rs232 (require :luars232))
+(local (_ rs232) (pcall #(require :luars232)))
 (local command (require "core.command"))
 
 (fn check [err ...]
diff --git a/main.lua b/main.lua
index 739f789..e7b4c91 100644
--- a/main.lua
+++ b/main.lua
@@ -5,7 +5,7 @@ fv = fennel.view
 pp = function(x) print(fv(x)) end
 lume = require("lib.lume")
 -- these set global variables and can't be required after requiring core.strict
-luars232 = require("luars232")
+_, luars232 = pcall(function () require("luars232") end)
 
 _coroutine_resume = coroutine.resume
 function coroutine.resume(...)