Category: developers journal

Centralized Metadata Storage in TortoiseSVN v1.7

Author: seven October 25, 2011

After installing update of TortoiseSVN to version 1.7 the other day, I got pretty freaked out when TortoiseSVN asked me to update my local working copy of project I was working on to new file format and "make it unusable for older clients".

Since I love testing stuff, reinstalling os’s and making my life miserable by pressing YES, OK and Continue without reading or thinking about it - naturally, I performed the upgrade.

Nothing happened at first and I continued working on project as usual. After few hours I needed to copy some folders from my project to another folder in the same project, and since I am used to have trillions .svn subfolders in each folder of my project, after copying data, I immediately went for deleting those .svn subfolders so I can commit the changes. But – there were NO .svn subfolders!! Why? Read on.

Subversion 1.7 features a complete re-write of the working copy metadata management system of Subversion, code named WC-NG. A key feature of the changes introduced in Subversion 1.7 is the centralization of working copy metadata storage into a single location. Instead of a .svn directory in every directory in the working copy, Subversion 1.7 working copies have just one .svn directory—in the root of the working copy. This directory includes (among other things) an SQLite-backed database which contains all of the metadata Subversion needs for that working copy.
The process of upgrade itself is pretty easy and fast (well, depending on the size of your project that is):

Step 1 - go for project update:

Step 2 - Accept the file format upgrade:

Step 3 - Take a coffee break while upgrade is being performed:

Step 4 - Enjoy .svn-subfolder-less git style beauty.

CEO/CTO at Nivas®
Neven Jacmenović has been passionately involved with computers since late 80s, the age of Atari and Commodore Amiga. As one of internet industry pioneers in Croatia, since 90s, he has been involved in making of many award winning, innovative and successful online project. He is experienced full stack web developer, analyst and system engineer. In his spare time, Neven is transforming retro-futuristic passion into various golang, Adobe Flash and JavaScript/WebGL projects.

    One thought on “Centralized Metadata Storage in TortoiseSVN v1.7”

  • Really useful blog thanks, do you mind if I link it on my twitter? Here is a blog about how to install TortoiseSVN and make your first repository change

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