From 13cf75165a03de421272daf906480ba039defee3 Mon Sep 17 00:00:00 2001
From: AnthonyAxenov <anthonyaxenov@gmail.com>
Date: Tue, 11 Jan 2022 08:47:35 +0800
Subject: [PATCH] stacktrace.sh

---
 shell/stacktrace.sh | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 shell/stacktrace.sh

diff --git a/shell/stacktrace.sh b/shell/stacktrace.sh
new file mode 100644
index 0000000..a89ad96
--- /dev/null
+++ b/shell/stacktrace.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+# https://gist.github.com/anthonyaxenov/925e2db217730a49f20600520b748039
+# Original: https://gist.github.com/akostadinov/33bb2606afe1b334169dfbf202991d36
+# The difference is that this func outputs stacktrace in reverse order (from top level to lower ones)
+function print_stacktrace () {
+     STACK=""
+     local i
+     local stack_size=${#FUNCNAME[@]}
+     echo "Stacktrace:"
+     # skip this function and "MAIN non_file_source:0"
+     for (( i=$stack_size-1; i>=1; i-- )); do
+         local func="${FUNCNAME[$i]}"
+         [ x$func = x ] && func=MAIN
+         local linen="${BASH_LINENO[$(( i - 1 ))]}"
+         local src="${BASH_SOURCE[$i]}"
+         [ x"$src" = x ] && src=non_file_source
+         echo -e "\n   at $func $src:$linen"
+     done
+}