1 | #!/bin/sh |
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2 | # |
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3 | # Script to backup the ZODB served by the ZEO server |
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4 | # |
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5 | # The path to the db file is already set appropiately (relative), but you have |
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6 | # to adjust the path to the backups directory.The user running the script needs |
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7 | # write and exec permissions on such directory. |
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8 | # |
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9 | # This script will create per-month directories where a first full backup, |
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10 | # then incremental backups, will be saved (2013-10, 2013-11, etc) |
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11 | # |
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12 | # When doing the first full backup It will create a symlink called "latest", |
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13 | # pointing to the latest backup |
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14 | # |
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15 | |
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16 | here=`dirname $0` |
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17 | db="${here}/../var/zeo/Data.fs" |
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18 | backups=/home/backups/zodb/openworkouts |
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19 | month=`date "+%Y-%m"` |
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20 | now=`date "+%Y%m%d-%H%M%S"` |
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21 | |
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22 | |
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23 | usage() |
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24 | { |
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25 | echo "$0 full | incremental | help" |
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26 | echo "" |
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27 | echo " full: performs a full backup, initializing a new backup directory" |
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28 | echo " for the current month" |
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29 | echo "" |
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30 | echo " incremental: runs another backup in an existing backup directory" |
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31 | echo " adding only new changes from the database" |
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32 | echo "" |
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33 | echo " help: shows this message" |
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34 | } |
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35 | |
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36 | |
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37 | init_backup_dir() |
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38 | { |
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39 | # Creates a new backup directory using the current month as the name. |
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40 | # Also creates a symlink called "latest" pointing to this directory |
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41 | if [ -d ${backups}/${month} ]; then |
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42 | # move aside any previous backup directory |
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43 | echo "[ Warning ] A previous backup has been found for ${month}, " |
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44 | echo " saving it as ${backups}/${month}.${now}" |
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45 | mv ${backups}/${month} ${backups}/${month}.${now} |
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46 | fi |
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47 | mkdir -p ${backups}/${month} |
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48 | if [ -L ${backups}/latest ]; then |
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49 | rm ${backups}/latest |
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50 | fi |
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51 | ln -sf ${backups}/${month} ${backups}/latest |
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52 | } |
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53 | |
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54 | |
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55 | if [ ! -f ${db} ]; then |
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56 | echo "[ Error ] Database file ${db} not found, aborting" |
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57 | exit 1 |
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58 | fi |
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59 | |
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60 | if [ ! -d ${backups} ]; then |
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61 | echo "[ Warning ] Backups directory not found, creating it" |
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62 | mkdir -p ${backups} |
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63 | fi |
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64 | |
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65 | if [ ! -d ${backups} ]; then |
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66 | echo "[ Error ] Backups directory still not found, aborting" |
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67 | exit 1 |
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68 | fi |
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69 | |
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70 | |
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71 | case "$1" in |
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72 | 'full') |
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73 | echo "Creating new full backup: ${backups}/${month}" |
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74 | init_backup_dir |
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75 | repozo -B -v -F -f ${db} -r ${backups}/latest -z |
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76 | ;; |
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77 | 'incremental') |
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78 | echo "Adding incremental backup to ${backups}/latest" |
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79 | if [ ! -d ${backups}/${month} ]; then |
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80 | # Current month backup does not exist, start with a full backup |
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81 | echo "[ Error ] Latest full backup not found, please run a full" |
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82 | echo " backup first" |
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83 | exit 1 |
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84 | fi |
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85 | repozo -B -v -f ${db} -r ${backups}/latest -z |
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86 | ;; |
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87 | *) |
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88 | usage |
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89 | esac |
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