https://habilis.net/cronic/

cronic-v3-edited.sh

#!/usr/bin/env bash
#shellcheck disable=2155

# Cronic v3 Edited - cron job report wrapper
# Copyright 2007-2016 Chuck Houpt. No rights reserved, whatsoever.
# Public Domain CC0: http://creativecommons.org/publicdomain/zero/1.0/\
# Source: https://habilis.net/cronic/

function exitTrap {
    ## Short out if $TMP is root for some reason
    if [[ "${TMP}" == "/" ]]; then
        echo "\$TMP is /, not touching that!";
        exit 1;
    fi;

    ## Only cleanup if $TMP is defined
    if [[ -n "${TMP}" ]]; then
        rm -rf "${TMP}";
    fi;
}

trap exitTrap EXIT;

set -eu;

readonly TMP=$(mktemp -d);
readonly OUT=$TMP/cronic.out;
readonly TRACE=$TMP/cronic.trace;
readonly PATTERN="^${PS4:0:1}\\+${PS4:1}";

ERR=$TMP/cronic.err;

set +e;

"$@" > "${OUT}" 2> "${TRACE}";
RESULT=$?;
set -e;

## Check for error, if any inverse match and pipe into ERR file
if grep -aq "${PATTERN}" "${TRACE}"; then
    grep -av "${PATTERN}" "${TRACE}" > "${ERR}";
else
    ## Else set cat TRACE into ERR
    cat "${TRACE}" > "${ERR}";
fi;

## If RESULT is not equal to 0 OR $ERR exists and size is > 0 bytes
if [[ "${RESULT}" -ne 0  ]] || [[ -s "${ERR}" ]]; then
    echo "Cronic detected failure or error output for the command:";
    echo "$@";
    
    echo "";
    echo "RESULT CODE: ${RESULT}";
    echo "";
    
    if [[ -s "${ERR}" ]]; then
        echo "ERROR OUTPUT:";
        cat "${ERR}";
        echo "";
    fi;

    echo "STANDARD OUTPUT:";
    cat "${OUT}";
    echo "";
    
    if [[ -s "${TRACE}" ]]; then
        echo "TRACE Output:";
        cat "${TRACE}";
    fi;
fi;