From decd3d768599fabfa97e1516029b8a5d49e83ac7 Mon Sep 17 00:00:00 2001
From: pvincent <pvincent@artcode.re>
Date: Sat, 11 Jul 2026 13:36:46 +0400
Subject: [PATCH] stacktrace as array OK

---
 bin/bash-back    | 40 ++++++++++++++++++++++++++++++----------
 lib/utility.bash | 10 +++++++---
 useless.sh       |  4 ++++
 3 files changed, 41 insertions(+), 13 deletions(-)
 mode change 100644 => 100755 lib/utility.bash

diff --git a/bin/bash-back b/bin/bash-back
index c7bdcf8..b0186aa 100755
--- a/bin/bash-back
+++ b/bin/bash-back
@@ -8,9 +8,9 @@ SCRIPT=$1
 # FUNCTIONS
 
 function on_return {
-  if [[ "${BASH_COMMAND}" == return* ]]; then
+  if [[ "${BASH_COMMAND}" == 'return '* ]]; then
     code=$(echo "${BASH_COMMAND}" | cut -d' ' -f2) # regex does not work here unfortunately! thus use of basic cut
-    if [[ -n "$code" ]] && [[ $code -ne 0 ]]; then
+    if [[ -n "$code" ]] && [[ "$code" -ne 0 ]]; then
       trap - DEBUG
       >&2 echo "${BASH_SOURCE[2]}: line ${BASH_LINENO[0]}: return $code from ${FUNCNAME[1]}"
     fi
@@ -27,7 +27,6 @@ function exit {
 
 function on_exit {
   code=${1:-0}
-  >&4 dump_stderr
 
   stack_lines=("${BASH_LINENO[@]}")
   stack_functions=("${FUNCNAME[@]}")
@@ -52,8 +51,9 @@ function on_exit {
   stack_functions=("${stack_functions[@]}")
   stack_sources=("${stack_sources[@]}")
 
+  stack_summary=()
+
   if [[ $code -gt 0 ]]; then
-    $DEBUG && >/dev/tty echo '---stacktrace---'
     last_error=$(tail -n1 $TMP_ERROR)
     last_source=${stack_sources[0]}
     last_source=${last_source//./"\."} # replace . by \.
@@ -73,25 +73,45 @@ function on_exit {
         stack_lines=("$line" "${stack_lines[@]}")
         stack_functions=("$funcname" "${stack_functions[@]}")
       fi
-
-      >&4 echo -e "ERROR $code: [$message]"
+      stack_summary+=("ERROR $code: [$message]")
     else
-      >&4 echo "ERROR $code: <undefined>"
+      stack_summary+=("ERROR $code: <undefined>")
     fi
 
     for i in "${!stack_functions[@]}"; do
-      >&4 printf "\t%30s\t%s\n" "${stack_sources[$i]}:${stack_lines[$i]}" "${stack_functions[$i]}"
+      stack_detail=$(printf "\t%30s\t%s\n" "${stack_sources[$i]}:${stack_lines[$i]}" "${stack_functions[$i]}")
+      stack_summary+=("$stack_detail")
     done
+    >&4 dump_stderr true
+    dump_summary
+  else
+    >&4 dump_stderr false
   fi
 
   cleanup
   builtin exit $code
 }
 
+function dump_summary {
+  $DEBUG && >/dev/tty echo '---stacktrace---'
+  for i in "${stack_summary[@]}"; do
+    >&4 echo -e "$i"
+  done
+}
+
 function dump_stderr {
-  if [[ -s $TMP_ERROR ]]; then
+  last_trim=${1:-false}
+  mapfile -t tmp_error <$TMP_ERROR
+  if $last_trim; then
+    echo "${#tmp_error[@]}"
+    unset tmp_error[-1]
+    tmp_error=("${tmp_error[@]}")
+  fi
+  if [[ "${#tmp_error[@]}" -gt 0 ]]; then
     $DEBUG && >/dev/tty echo '---stderr---'
-    cat $TMP_ERROR
+    for i in "${tmp_error[@]}"; do
+      echo -e "$i"
+    done
   fi
 }
 
diff --git a/lib/utility.bash b/lib/utility.bash
old mode 100644
new mode 100755
index 092c863..7a92cf6
--- a/lib/utility.bash
+++ b/lib/utility.bash
@@ -1,13 +1,17 @@
+#!/usr/bin/env bash
+
 function blabla {
   echo IN blabla OUT
   suite
 }
 
 function suite {
+  return
+  return 7
+  command_not_found
   echo $nope
   exit 10 # youpi
   exit
-  command_not_found
-  return 7
-  return
 }
+
+blabla
diff --git a/useless.sh b/useless.sh
index 9d310c2..adde5b1 100755
--- a/useless.sh
+++ b/useless.sh
@@ -3,6 +3,7 @@
 function F2 {
   echo "stdout A"
   # echo toto >>/tmp/toto
+  return
   >&2 echo "This is stderr"
 
   blabla
@@ -30,7 +31,10 @@ function F3 {
 
 echo start of useless
 F3
+# lib/utility.bash
 . lib/utility.bash
+
 >&2 echo some trace in stderr
 main
+error
 echo end of useless