Shell script to backup all of your SVN repositories

If you have followed my previous article on "Installing subversion and trac on linux", you might want to periodically backup your SVN repos and trac instances. I currently backup all my repositories using following script that I made recently.

Note: Even if this script works and tested by be, I would advice you NOT to use it if you don't understand what this script does.

Script Config Variables - Explained

It does very basic backup job. Here are the tasks done by this backup script:
  • svnrepos - absolute path of SVN repository root (where all the svn repos are created)
  • bakdest - absolute path of directory where you would like to save all SVN dumps
  • baktousb - absolute path of additional folder path to copy SVN dump (could be connected USB drive)

Source Code for SVN Backup Shell Script

#!/bin/sh
################################################
#
# Backup SVN repos to local folder
#
# @author   Hossain Khan
# @email    contact [at] hossainkhan [dot] info
# @version  v0.01
# @reldate  2010-03-27
################################################
#  Copyright (c) 2010 Hossain Khan
# 
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
# 
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
# ----------------------- END OF LICENSE TEXT ----------------------
 
# Record todays date
# --------------------
bakdate=$(date +%Y%m%d%H%M)
echo "--------------------------------"
echo "Running SVN backup $bakdate"
echo "--------------------------------\n"
 
# From where to backup repos?
# ---------------------------
svnrepos="/srv/svnrepos"
echo "\nGoing to backup all SVN repos located at: $svnrepos \n"
 
# Where to save the dump?
# ------------------------
bakdest="/home/username/SVN-BACKUPS"
 
# Location for USB drive? (to copy backup)
# ----------------------------------------
baktousb="/media/USB/Extra-BACKUP"
 
# _________NO-COFIG-REQUIRED-BELOW-THIS-LINE___________
 
# First go to SVN repo folder
cd $svnrepos
 
 
# Just make sure we have write access to backup-folder
if [ -d "$bakdest" ] && [ -w "$bakdest" ] ; then
  # Now $repo has folder names = project names
  for repo in *; do
    # do svn dump for each project
    echo "Taking backup/svndump for: $repo"
    echo "Executing : svnadmin dump $repo > $bakdest/$repo-$bakdate.svn.dump \n"
    # Now finally execute the backup
    svnadmin dump $repo > $bakdest/$repo-$bakdate.svn.dump
    # You can go an extra mile by applying tar-gz compression to svn-dumps
 
    # We also would like to save the dump to remote place/usb
    if [ -d "$baktousb" ] && [ -w "$baktousb" ] ; then
      # USB/other directory exists, copy the dump there
      echo "Going to copy $repo dump to $baktousb directory...\n"
      cp $bakdest/$repo-$bakdate.svn.dump $baktousb
    fi 
  done
else
  echo "Unable to continue SVN backup process."
  echo "$bakdest is *NOT* a directory or you do not have write permission."
fi
 
 
# End of backup script
echo "\n\n================================="
echo " - Backup Complete, THANK YOU :-]"
» Don't forget to update script config paths at the top
» Please do not add trailing forward slash (/) with the folder paths
» Make sure the script is executable. eg. chmod 755 svnbackup-scriptname.sh


Setting Cron Job for Automated Backup

Before you setup cron job for this script, it is recommended to run this script manually from terminal to verify if it works.
If you are experienced user, then you can setup cron using crontab using terminal. Add the following to run backup daily at midnight.
# m h dom mon dow   command
# @daily = Run once a day, "0 0 * * *"
@daily bash /path/to/svnbackup-cron.sh

I used Gnome-schedule GUI application to add cron job under my user.


Additional Resources

You can also look at backup-ninja for advance automated backup through configuration.

Feedback is always welcome :-]

Comments

Thanks for your scripts
Good job

This was very helpful.

How do i redirect to logfile of output

./name_you_gave_to_the_script > logfile.log

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