shell-recall/capture.sh

#!/bin/bash
set -euo pipefail
if [ "$#" == "0" ]
then
	echo capture
	exit 0
fi

. "${BASH_SOURCE[0]%/*}"/helpers/common.sh
LOG_ROOT="$HOME"/.local/var/log/shell # source this

PROG="$1"
SUBPROG="$(get_subprog "$@")"

TIMESTAMP=$(date +%Y%m%d_%H%M%S_%N)
LOG_DIR="$LOG_ROOT"/"$PROG"/"$SUBPROG"/"$TIMESTAMP"

mkdir -p "$LOG_DIR"

OUT="$LOG_DIR"/stdout
ERR="$LOG_DIR"/stderr
DAT="$LOG_DIR"/dat
INF="$LOG_DIR"/info
CMD="$( (set -x; : "$@") 2>&1 | cut -d: -f2- | cut -d' ' -f2-)"

info(){
	cat <<EOF > "$INF"
$CMD
status=$?
EOF
	exec 2>&-
	exec 1>&-
	wait "$err_pid" "$out_pid"
}

trap 'info' EXIT
exec 2> >(tee -a "$DAT" "$ERR")
err_pid="$!"
exec 1> >(tee -a "$DAT" "$OUT")
out_pid="$!"
"$@"