cronic

#!/bin/bash

# based on Cronic v2 - cron job report wrapper downloaded from http://habilis.net/cronic/cronic
# Copyright 2007 Chuck Houpt
# Public Domain CC0: http://creativecommons.org/publicdomain/zero/1.0/
# modified by BCT 2008 to use voro logging scheme, tweaked in 2013 for appstrap

if [[ -n "$DEBUG" ]]; then 
  set -x
fi

set -o pipefail  # trace ERR through pipes
set -o errtrace  # trace ERR through 'time command' and other functions
set -o nounset   ## set -u : exit the script if you try to use an uninitialised variable
set -o errexit   ## set -e : exit the script if any statement returns a non-true return value
logname=$(basename "$1")
TIMESTAMP=$(date +%Y%m%d_%H%M%S)
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )" # http://stackoverflow.com/questions/59895
LOGDIR=$DIR/log
mkdir -p "$LOGDIR"
OUT=$LOGDIR/${logname}.$TIMESTAMP.out
ERR=$LOGDIR/${logname}.$TIMESTAMP.err
TRACE=$LOGDIR/${logname}.$TIMESTAMP.trc

ionice -c3 -p$$ 
renice -n 10 $$ > /dev/null

PATH=$HOME/pdfu/ve/bin:$PATH:$HOME/.local/bin:$HOME/bin

export PATH

# run command
set +e
"$@" >"$OUT" 2>"$TRACE"
RESULT=$?
set -e

if [ -e /usr/xpg4/bin/grep ]; then # solaris
  GREP=/usr/xpg4/bin/grep
elif [ -e /bin/grep ]; then # Amazon Linux AMI
  GREP=/bin/grep
else 
  GREP=/usr/bin/grep
fi

PATTERN="^${PS4:0:1}\\+${PS4:1}"
if $GREP -q "$PATTERN" "$TRACE"
then
    ! $GREP -v "$PATTERN" "$TRACE" > "$ERR"
else
    ERR=$TRACE
fi

if [ $RESULT -ne 0 -o -s "$ERR" ]
    then
    echo "Cronic detected failure or error output for the command:"
    echo "$@"
    echo
    echo "RESULT CODE: $RESULT"
    echo
    echo "ERROR OUTPUT: tail $ERR"
    tail "$ERR"
    echo
    echo "STANDARD OUTPUT: tail $OUT"
    tail "$OUT"
    if [ "$TRACE" != "$ERR" ]
    then
        echo
        echo "TRACE-ERROR OUTPUT: tail $TRACE"
        tail "$TRACE"
    fi
fi

# remove empty log files
# : is a null command
if [ -s "$ERR" ] ; then gzip "$ERR"
	elif [ -e "$ERR" ] ; then rm "$ERR"
fi

if [ -s "$OUT" ]  ; then gzip "$OUT"
	elif [ -e "$OUT" ] ; then rm "$OUT"
fi

if [ -s "$TRACE" ] ; then gzip "$TRACE"
	elif [ -e "$TRACE" ] ; then rm "$TRACE"
fi