backup_stat.sh

#!/usr/bin/env zsh
# -*- coding: UTF8 -*-

# Author: Guillaume Bouvier -- guillaume.bouvier@ens-cachan.org
# 2016-05-10 15:36:06 (UTC+0200)

format_duration()
{
    diff=$1 # Duration in seconds
    if test $diff -ge 86400; then
        echo "$(($diff / 86400))d$((($diff / 3600) % 24))h$((($diff / 60) % 60))m$(($diff % 60))s"
    elif test $diff -ge 3600; then
        echo "$(($diff / 3600))h$((($diff / 60) % 60))m$(($diff % 60))s"
    elif test $diff -ge 60; then
        echo "$((($diff / 60) % 60))m$(($diff % 60))s"
    else
        echo "${diff}s"
    fi
}

# Compress the old backup_files.log.1 file
if test -f "$HOME/crashplan/log/backup_files.log.1"; then
    gzip -9 -S "_$(date +"%Y%m%d").gz" "$HOME/crashplan/log/backup_files.log.1"
fi

# sort the log files by date
LOGFILE=($(ls -rt $HOME/crashplan/log/backup_files.log.*))

if [[ "$@[1]" = "" || "$@[1]" = "-h" ]]; then
    echo "Usage:"
    echo "    bstat filename1 [filename2] [...]"
    echo "        Check the backup status for the given filenames"
    echo "    bstat -d [path]"
    echo "        Check for deleted files or directories that can be restored"
    echo "        If a path is given, search in the given path,"
    echo "        else the current directory is used"
    echo "    bstat -a"
    echo "        Only print the time elapsed from last logged activity"
    echo "    bstat -i"
    echo "        Display license and version informations"
    exit 0
fi

APPLOG="$LOGFILE[1]:h/app.log"
# Backup frequency in seconds:
BACKFREQ=$(grep watcherNoActivityInterval $APPLOG | awk -F"= " '{print $2}' | awk '{print $1}' | tr -d 'min' | awk '{print $0*60}')
if [[ $1 = "-i" ]]; then
    echo "Version: $(grep 'CPVERSION    = ' $APPLOG | awk -F" = " '{print $2}')"
    echo "License expire date: $(grep 'ServiceModel.cpcLicense.expires = ' $APPLOG | awk -F" = " '{print $2}')"
    exit 0
fi

# Decompress the log files in a tmp file:
TMPFILE=$(mktemp -p /dev/shm)
zcat -f $LOGFILE > $TMPFILE

# cleanup function
# see: http://goo.gl/2aUQc
trap "rm $TMPFILE; exit" SIGHUP SIGINT SIGTERM

NOW=$(date +%s)
HISTLOG="$LOGFILE[1]:h/history.log.0"
# List of servers where to backup
SERVERNAMES=($(grep 'Completed backup' $HISTLOG | awk -F'to | in |: No' '{gsub(/ /,"_",$2); print $2}' | sort | uniq))
for SERVERNAME in $SERVERNAMES; do
    echo "Destination: $SERVERNAME"
    # Match insensitive to space or underscore
    match1=$SERVERNAME
    match2=$(echo $SERVERNAME | tr "_" " ")
    LASTACTION=$(date -d"$(grep "Completed backup" $HISTLOG | grep "$match1\|$match2" | tail -n1 | awk '{print $2, $3}')" +%s) 2> /dev/null || LASTACTION=-1
    if test $LASTACTION -gt 0; then
        # Time elapsed from last activity in seconds:
        TIME_ELAPSED=$(($NOW-$LASTACTION))
        # Time to the next backup in seconds:
        NEXT_BACKUP=$(($BACKFREQ-$TIME_ELAPSED))
        echo "Last completed backup: $(format_duration $TIME_ELAPSED) ago"
    else
        NEXT_BACKUP=-1
    fi
    if test $NEXT_BACKUP -gt 0; then
        echo "Next backup in $(format_duration $NEXT_BACKUP)"
    else
        if grep "Starting backup\|Stopped backup\|Completed backup" $HISTLOG | tail -1 | grep "Starting backup to" | grep "$match1\|$match2">/dev/null; then
            STARTTIME=$(date -d"$(grep "Starting backup to" $HISTLOG | grep "$match1\|$match2" | tail -1 | awk '{print $2, $3}')" +%s)
            SIZE=$(grep "Starting backup to" $HISTLOG | grep "$match1\|$match2" | tail -1 | awk -F'[()]' '{print $2}') # SIZE of files to backup
            UNIT="$SIZE[-2]"
            SIZE="${SIZE: : -2}" # remove 2 last characters
            SIZE=$(echo $(printf "%f" $SIZE)$UNIT | numfmt --from=si)
            BACK_ELAPSED=$(($NOW-$STARTTIME))
            echo "Backup running for: $(format_duration $BACK_ELAPSED)"
            CURRENT_FILE_BACKUP=$(cat $TMPFILE | grep -v "Completed\|Starting" | tail -1 | awk '{print $7}')
            echo "Last backup element: $CURRENT_FILE_BACKUP"
        elif grep "$match1\|$match2" $HISTLOG | tail -1 | grep "not ready for backup" > /dev/null; then
            echo "Destination unavailable."
        else
            echo "Backup should start ASAP..."
        fi
    fi
    echo "---------------------"
done
if [[ $1 = "-a" ]]; then
    rm $TMPFILE && exit 0
fi
echo "___________________________________________"

if [[ $1 = "-d" ]]; then
    if test ${#@[*]} -eq 1; then # No argument after -d option
        DIR=$(pwd) # Use the current directory
    else
        DIR=$@[2]:A # Use the given directory to search in
    fi
    DIR_ARRAY=(${(s:/:)DIR}) # split the DIR as an array eg: (home user data)
                             #(see: http://stackoverflow.com/a/29073092/1679629)
    DIR_DEPTH=${#DIR_ARRAY[@]}
    while read D ; do
        D_ARRAY=(${(s:/:)D})
        F="$D_ARRAY[$((DIR_DEPTH+1))]"
        if test ! -e "$DIR/$F"; then
            echo $F
        fi
    done < =(cat $TMPFILE | grep "$DIR" | grep "(deleted)$" | cut -d" " -f7- | sed 's/ (deleted)//' | sort | uniq) | sort | uniq
    rm $TMPFILE && exit 0
fi

OUT="Last backup date: | Status: | Filename:\n"
for X in "$@"; do
    if test $(cat $TMPFILE | grep '^I' | grep -c $X:A) -gt 0; then
        # Retrieve backup date
        BDATE=$(cat $TMPFILE | grep '^I' | grep $X:A | tail -n1 | awk '{print $2,$3}')
        BACKDATE=$(date -d"$BDATE" +"%s")
        MODIFDATE=$(stat -c %Y  $X:A)
        TODAY=$(date +"%Y%m%d")
        if test $BACKDATE -ge $MODIFDATE; then
            STATUS="OK"
        else
            STATUS="NOT"
        fi
        # Format output
        if test $((NOW-BACKDATE)) -lt 1800; then # last backup less than 30 min ago
            BDATE="$(date -d "0 $NOW seconds - $BACKDATE seconds" +"%Mm") ago"
        elif test $(date -d"$BDATE" +"%Y%m%d") -eq $TODAY; then
             BDATE="Today      $(date -d"$BDATE" +"%H:%M")"
        else
            BDATE=$(date -d"$BDATE" +"%F %H:%M")
        fi
    else
        BDATE="NONE"
        STATUS="NOT"
    fi
    OUT+="$BDATE | $STATUS | $X\n"
done
echo $OUT | column -s"|" -t
rm $TMPFILE