I'm looking ways to manage $VERSION numbers automatically. I used to use the CVS Revision keyword to fill the version. As I now use svn and svk, a new trick is required.

The most useful thing we've found so far is an E::MM::FAQ example although there's probably more out there (googling subversion, perl and version is a mess). This quote explains some issues with svn and svk:

In SVN, $Revision$ should be the same for every file in the project so they would all have the same $VERSION. CVS and RCS have a different $Revision$ per file so each file will have a differnt $VERSION. Distributed version control systems, such as SVK, may have a different $Revision$ based on who checks out the file leading to a different $VERSION on each machine! Finally, some distributed version control systems, such as darcs, have no concept of revision number at all.
The CVS incantation I used to use was: 
 # CVS exmample
 $VERSION = sprintf "%d.%03d", q$Revision: 1.1 $ =~ /(\d+)/g;

[download]

Subversion has keyword substitution but, as mentioned above, it's handled differently to cvs.

What tips do you have a automatically managing version?
What about using $Date$ for versions? eg. 2008.02_18
Is the PBP "use version; qv()" actually a BP?
How are branches best handled?
Are there other ways to update versions, not using the source control system?
Is the attempt to do this automatically flawed?

Thanks,
Brad

In reply to Automatic $VERSION updates and subversion tips? by bsb

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