From a926c8f109eafeeebce5e316ac059b1c67d894e5 Mon Sep 17 00:00:00 2001
From: Mattias Wadman <mattias.wadman@gmail.com>
Date: Fri, 27 Aug 2021 09:47:43 +0200
Subject: [PATCH] dev: Some debug notes

---
 doc/dev.md | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/doc/dev.md b/doc/dev.md
index cdd901d9..0ed0d112 100644
--- a/doc/dev.md
+++ b/doc/dev.md
@@ -22,3 +22,14 @@ decoder code be a bit ugly over producing a tree that is hard to understand.
 
 - Try to have add symbols for all named constants.
 
+## Debug
+
+Send `log` package output and stderr to a file that can be `tail -f`:ed:
+```sh
+LOGFILE=/tmp/log go run main.go ... 2>/tmp/log
+```
+
+gojq execution debug:
+```sh
+GOJQ_DEBUG=1 go run -tags debug main.go ...
+```