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26 lines
506 B
26 lines
506 B
#!/bin/bash
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function exit {
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code=${1:-0}
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trap - ERR TERM INT EXIT
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# a bit of magic: read content of file still on write!
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count=$(wc -c stderr | cut -d' ' -f1)
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content=$(head -qc$count stderr)
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>&4 echo "DETECTED0: [$content]"
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>&4 echo EXIT ${code}
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}
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set -TEue -o pipefail
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trap 'exit $?' ERR TERM INT EXIT
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[[ -f stderr ]] && rm stderr
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export -f exit
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# magic FD
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exec 3>stderr 4>/dev/stderr
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source ./useless.sh 2>&3
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exec 3>&- 4>&-
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trap - ERR TERM INT EXIT
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[[ -s stderr ]] && >&2 cat stderr
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