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Subversion Version Control for a Modern World Jeremy Whitlock June 2006

Subversion Version Control for a Modern World Jeremy Whitlock June 2006. AGENDA. What is Subversion? Why should you use it? Current feature set New features in 1.4.x What's on the horizon. What is Subversion?. Historically, the de-facto standard in open source version control is CVS

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Subversion Version Control for a Modern World Jeremy Whitlock June 2006

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  1. Subversion Version Control for a Modern World Jeremy Whitlock June 2006

  2. AGENDA What is Subversion? Why should you use it? Current feature set New features in 1.4.x What's on the horizon

  3. What is Subversion? Historically, the de-facto standard in open source version control is CVS Provides a great model for distributed teams Non-locking development keeps people from getting in each other's way But CVS has problems... Evolved over time, not designed for the modern world Feels like the whole thing is duct taped together Inefficient Lacks many features you expect in a modern system Subversion takes the good parts of CVS, and fixes the rest

  4. Subversion versus CVS Keeps the general workflow, and most of the commands Totally rebuilt from the ground up for a modern world Networking thought of from the beginning Streams data instead of keeping it in memory Clever repository design that makes tagging and branching very cheap Versions directories and metadata, not just files Working copy lets you do many things offline svn status svn diff

  5. Subversion Compared to Other Systems Better high end scalability than Perforce Works well over a network, unlike ClearCase

  6. Subversion for Java Development Many features are particularly useful for Java developers Files and directories can be renamed without losing history You can actually delete a directory, unlike CVS Integrated into numerous IDEs Eclipse Netbeans IDEA Oracle JDeveloper Java bindings let you write code that uses Subversion's libraries

  7. From a Developer's Perspective Subversion is designed to be extensible A layered system Multiple places you can hook into things I'm giving a 3 hour tutorial about this stuff at OSCON

  8. Current Feature Set Feature parity with CVS Directory versioning Efficient network support Local status/diffs Cheap branching/tagging Language bindings

  9. New in 1.4.x svnsync/replay for repository mirroring diff/merge/blame can now ignore whitespace/eol style changes svnserve runs as a service on Win32 BIG performance gains on working copy library Driven by big projects like GCC New svndiff1 delta format, more space efficient thanks to zlib BDB 4.4 support, more reliable New ra_serf DAV client implementation (experimental) svn diff --summarize Bug fixes...

  10. Current Release Line - 1.3.x Added path based authz for svnserve Improved logging for mod_dav_svn mod_dav_svn speedups Way better python and ruby bindings Client and server performance improvements Bug fixes...

  11. In the Future... Atomic Renames Currently rename == move + delete Loses information Working on real rename operation in the filesystem layer Merge Tracking Avoid repeated merges Efficiently find out what's been merged into what branch Both of these are in progress on development branches

  12. Public mod_dav_svn Instances on the Internet

  13. Want to try it Out? BEA CodeShare site has Subversion built right in Download the client from http://subversion.tigris.org/

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