vcs – From idea to profit

Category Archives: vcs

Space efficient source code storage

23.03.2016 – 23:28

During implementation of DistTest I faced with necessity of building a lot of different linux kernel versions. As a first solution I chose downloading archives from kernel.org for each used version. But I soon realized that about 1000 versions of sources with size 0.5-1GB each would consume a lot of disk space. It’s also impossible to build kernel with exact commit precision using this approach.
Set of base versions with corresponding patches can save disk space, but uses a lot of random I/O during applying patches, so it’s slow on HDD and consume finite rewrite resource of SSD. Temporary nature of sources leads to conclusion “use tmpfs”. But aufs offers much less RAM consuming method – store in RAM only diffs.

Yuriy Nazarov | Permalink | Comment (0)

Remote SVN backup with svnsync

07.09.2012 – 01:50

Create local svn repository with name “my_local_repo”

$ svnadmin create my_local_repo

1	$ svnadmin create my_local_repo

prepare local repo

$ echo "#!/bin/sh" > hooks/pre-revprop-change
$ chmod 755 hooks/pre-revprop-change

1 2	$ echo "#!/bin/sh" > hooks/pre-revprop-change $ chmod 755 hooks/pre-revprop-change

initialize local copy

$ svnsync init file:///path/to/my_local_repo http://from.server/from_repo

1	$ svnsync init file:///path/to/my_local_repo http://from.server/from_repo

first run must be interactive to input and save your login and password

svnsync sync file:///path/to/my_local_repo

1	svnsync sync file:///path/to/my_local_repo

write script to run it in cron
backup_svn_script.sh:

#!/bin/bash
svnsync --non-interactive sync file:///path/to/my_local_repo
tar -C /path/to/ -czf /path/to/backup/$(date +"svn_%Y_%m_%d_%H_%M_%S").tar.gz my_local_repo

#!/bin/bash

svnsync --non-interactive sync file:///path/to/my_local_repo

tar -C /path/to/ -czf /path/to/backup/$(date +"svn_%Y_%m_%d_%H_%M_%S").tar.gz my_local_repo

it produce files like “svn_2012_09_07_01_34_01.tar.gz” in your backup directory

Now you can add task to cron. Execute:

$ crontab -e

1	$ crontab -e

and add following line to run backup at 4:00 (4 a.m.) every day

0 4 * * * /path/to/backup_svn_script.sh

1	0 4 * * * /path/to/backup_svn_script.sh

This method is not disk space efficient, but very simple.

Sources:
using svnsync
installing subversion server in ubuntu

Yuriy Nazarov | Permalink | Comment (0)

From idea to profit

Category Archives: vcs

Space efficient source code storage

Remote SVN backup with svnsync

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