101 lines
2.5 KiB
Bash
Executable File
101 lines
2.5 KiB
Bash
Executable File
#!/usr/bin/env rc
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# Dbkp - Backup and restore denote directory
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# Usage: Dbkp (create backup)
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# Dbkp YYYYMMddTHHmmss (restore backup)
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# Configuration
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backupdir=$HOME/Dbkp
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# get denotedir
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denotedir=`{9p read denote/dir}
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if(~ $#denotedir 0 || ~ $denotedir '') {
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echo 'error: could not read denote directory from server' >[1=2]
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echo 'ensure denote server is running' >[1=2]
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exit 1
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}
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denotebase=`{basename $denotedir}
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# create backupdir
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mkdir -p $backupdir
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# parse args
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if(~ $#* 0) { # backup mode
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timestamp=`{9 date | awk 'BEGIN {
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m["Jan"]=1; m["Feb"]=2; m["Mar"]=3; m["Apr"]=4
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m["May"]=5; m["Jun"]=6; m["Jul"]=7; m["Aug"]=8
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m["Sep"]=9; m["Oct"]=10; m["Nov"]=11; m["Dec"]=12
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}{
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split($4, t, ":")
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printf "%s%02d%02dT%s%s%s\n", $6, m[$2], $3, t[1], t[2], t[3]
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}'}
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backupfile=$backupdir/$timestamp'-'$denotebase'-dbkp.tar.gz'
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# create temporary directory and copy denote contents there
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timestampdir=$backupdir/$timestamp
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mkdir -p $timestampdir
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cp -rf $denotedir/* $timestampdir
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# build tarball and cleanup temp dir
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echo 'Creating backup:' $backupfile
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cd $backupdir
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9 tar cvzf $backupfile $timestamp
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rm -rf $timestampdir
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if(test -f $backupfile) {
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echo 'Backup created successfully'
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}
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if not {
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echo 'error: backup failed' >[1=2]
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exit 1
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}
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}
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if not if(~ $#* 1) { # restore or list mode
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# check for list mode
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if(~ $1 l) {
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ls $backupdir | awk -F'[-.]' '{print $1}' | awk -F'/' '{print $NF}'
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exit 0
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}
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# validate timestamp argument
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timestamp=$1
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if(! echo $timestamp | 9 grep '^[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]T[0-9][0-9][0-9][0-9][0-9][0-9]$' >/dev/null >[2=1]) {
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echo 'error: invalid timestamp format (expected YYYYMMddTHHmmss)' >[1=2]
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exit 1
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}
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backupfile=$backupdir/$timestamp'-'$denotebase'-dbkp.tar.gz'
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if(! test -f $backupfile) {
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echo 'error: backup file not found:' $backupfile >[1=2]
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echo 'available backups:' >[1=2]
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ls $backupdir/*-$denotebase-dbkp.tar.gz >[1=2]
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exit 1
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}
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# extract tarball to restore directory
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restoredir=$denotedir/restore
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mkdir -p $restoredir
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echo 'Restoring backup to:' $restoredir
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cd $restoredir
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9 tar xvzf $backupfile
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if(test -d $restoredir/$timestamp) {
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echo 'Backup restored successfully to:' $restoredir/$timestamp
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}
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if not {
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echo 'error: restore failed' >[1=2]
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exit 1
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}
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}
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if not {
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echo 'usage: Dbkp (create backup)' >[1=2]
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echo ' Dbkp l (list backups)' >[1=2]
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echo ' Dbkp YYYYMMddTHHmmss (restore backup)' >[1=2]
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exit 1
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}
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