How to access the current Subversion build number?

Question

How can you automatically import the latest build/revision number in subversion?

The goal would be to have that number visible on your webpage footer like SO does.

Answer 1

In Rails I use this snippet in my environment.rb which gives me a constant I can use throughout the application (like in the footer of an application layout).

SVN_VERSION  = IO.popen("svn info").readlines[4].strip.split[1]