[Buildbot-devel] Add a property for WithProperties

[Johnathan Hegge]

I'm pythonically challenged here.   I want to tag some SVN source before I build with sendchange.  The "branch" property has the last bit of info I want for the tag. I need to strip the leading path (e.g. branches/my-branch to my-branch) and use that tail as a property.  

I tried a couple of variations, one below to give the idea.  Seems like I should be able to split this in the config.   How do I make the variable available (adding it to buildbot.process.properties.Properties?) Am I trying to modify an immutable?  Or, just needing to make a custom step?

def bare_branch(branch):
    if (branch):
        (head,tail) = os.path.split(branch) 
        return tail
    return "Trunk"

c['bare'] = bare_branch

fac.addStep(ShellCommand(description='Tag SVN source for build revision',
                                  command=["svn",
                                  "copy",
                                  WithProperties("-r%(got_revision)s"),
                                  "-m'Tagged by production build'",
                                  poq_svnURL,
                                  WithProperties("http://svn.foo.com/svn/tags/POQ-%(poq_version)s-%(bare_branch)s-b%(buildnumber)s-r%(got_revision)s")]))