diff options
| -rwxr-xr-x | rsyncshot | 32 |
1 files changed, 6 insertions, 26 deletions
@@ -13,7 +13,6 @@ # Default Locations For Setup # Modify BACKUPLOCATION to point to the mount point of your backup - MOUNTPOINT=/media/backup; SCRIPTLOC=/usr/local/bin/rsyncshot; DESTINATION=$MOUNTPOINT/$HOSTNAME @@ -24,10 +23,11 @@ LOGHOME=/var/log/rsyncshot.log; INCLUDES="$INSTALLHOME/include.txt"; EXCLUDES="$INSTALLHOME/exclude.txt"; +FLOCKCHECK="flock -x /tmp/rsyncshot.lock -c" + # Sidestep Alias Conflicts # Copy, move, and rm commands are often aliased to require user input. # Using a variable allows us to sidestep this and complete the actions without any interaction. - CP="/usr/bin/cp" MV="/usr/bin/mv" RM="/usr/bin/rm" @@ -36,13 +36,11 @@ RM="/usr/bin/rm" # CRON_H = hourly on minute 0 from 1am to 11pm # CRON_D = daily at midnight, Monday - Saturday # CRON_W = weekly at midnight on Sundays - -CRON_H="0 1-23 * * * $SCRIPTLOC hourly 22"; -CRON_D="0 0 * * 1-6 $SCRIPTLOC daily 6"; -CRON_W="0 0 * * 7 $SCRIPTLOC weekly 51"; +CRON_H="0 1-23 * * * $FLOCKCHECK $SCRIPTLOC hourly 22"; +CRON_D="0 0 * * 1-6 $FLOCKCHECK $SCRIPTLOC daily 6"; +CRON_W="0 0 * * 7 $FLOCKCHECK $SCRIPTLOC weekly 51"; # Help Function - help() { printf "\nrsyncshot - compact snapshots on Linux using rsync and hard links.\n\n" @@ -50,13 +48,12 @@ help() printf " setup (installs rsyncshot and cron jobs)\n" printf " help (prints this info)\n" printf "Notes:\n" - printf '%s\n' "- rsyncshot must be run as root" + printf '%s\n' "- rsyncshot must be run as root" printf '%s\n' "- install and log locations defined in script." printf '%s\n' } # Error Function - error() { echo "ERROR: $0: $@" 1>&2; @@ -65,7 +62,6 @@ error() } # Setup Function - setup() { # copy this file to directory on path and make executable $CP -f $0 $SCRIPTLOC @@ -100,33 +96,27 @@ setup() # Display Help If Requested # Make the argument uppercase for case insensitivity. - TYPE=$(tr '[a-z]' '[A-Z]' <<< $1); if [ "$TYPE" = "HELP" ]; then help; exit; fi # Ensure We're Running As Root - if [ "$EUID" -ne 0 ]; then error "This script must be run as root."; fi # Display Start Information - echo "rsyncshot invoked on `date -u` with: $0 $1 $2"; # Validate Backup Type # First argument must be alpha characters - if ! [[ $1 =~ [a-zA-Z] ]]; then error "snapshot type not recognized."; fi if [ "$TYPE" = "SETUP" ]; then setup; exit; fi # Validate Max Snapshots # Second argument must be numeric - if ! [[ $2 =~ [0-9] ]]; then error "max snapshots not a number."; fi MAX=$(($2-1)); # Validate Include File (Source Directories) Exist # Validates the include file exists, and checks the file contents are valid directories - if [ ! -f "$INCLUDES" ]; then error "include file $INCLUDES not found."; fi SOURCES=$(<$INCLUDES); for SOURCE in $SOURCES @@ -135,13 +125,11 @@ do done # Validate Exclude File (Exclusion Patterns) Exist - if [ ! -f "$EXCLUDES" ]; then error "Exclude file $EXCLUDES not found."; fi # Validate Mountpoint # Fail if mountpoint doesn't exist. # Attempt mounting if destination filesystem not mounted; error if attempt fails. - [ -d $MOUNTPOINT ] || error "$MOUNTPOINT doesn't exist!" if grep -qs "$MOUNTPOINT" /proc/mounts ; then @@ -154,11 +142,9 @@ else if [ $? -eq 0 ]; then fi # Validate Destination Directory Exists - [ -d $DESTINATION ] || mkdir $DESTINATION || error "$DESTINATION doesn't exist, and attempt to create failed." # Sync Each Backup Directory In Turn - for SOURCE in $SOURCES do rsync -avh -i --times \ @@ -168,13 +154,11 @@ do done # If Exists, Delete Max+1 Snapshot - if [ -d $DESTINATION/$TYPE.$MAX ]; then $RM -rf $DESTINATION/$TYPE.$MAX; fi # Rotate Remaining Snapshots Descending - for (( start=$(($MAX)); start>=0; start--)); do end=$(($start+1)); if [ -d $DESTINATION/$TYPE.$start ]; then @@ -183,18 +167,14 @@ for (( start=$(($MAX)); start>=0; start--)); do done # Reset Directory Timestamp - touch $DESTINATION/latest # Hard Link Only Copy to Destination - $CP -al $DESTINATION/latest $DESTINATION/$TYPE.0; # Make Directory Type Read-Only - chmod -w $DESTINATION/$TYPE.0 # Print Time and Exit - echo "rsyncshot completed `date -u` "; exit 0; |