From: Simon McVittie <smcv@collabora.com>
Date: Sun, 18 Apr 2021 11:16:45 +0000 (+0100)
Subject: libtest: On failure, make it clearer what has happened
X-Git-Tag: archive/raspbian/2022.1-3+rpi1~1^2~4^2~3^2~26^2
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=9d48d39a4b16c4faa58488107cd0a53c8144a7ca;p=ostree.git

libtest: On failure, make it clearer what has happened

If we fail as a result of `set -x`, It's often not completely obvious
which command failed or how. Use a trap on ERR to show the command that
failed, and its exit status.

Signed-off-by: Simon McVittie <smcv@collabora.com>
---

diff --git a/tests/libtest.sh b/tests/libtest.sh
index eda3b921..2e9a99df 100755
--- a/tests/libtest.sh
+++ b/tests/libtest.sh
@@ -46,6 +46,14 @@ run_exit_cmds() {
 }
 trap run_exit_cmds EXIT
 
+report_err () {
+  local exit_status="$?"
+  { { local BASH_XTRACEFD=3; } 2> /dev/null
+  echo "Unexpected nonzero exit status $exit_status while running: $BASH_COMMAND" >&2
+  } 3> /dev/null
+}
+trap report_err ERR
+
 save_core() {
   if [ -e core ]; then
     cp core "$test_srcdir/core"